JPH0652770A - Relay - Google Patents

Abstract

PURPOSE:To surely and easily open and close a high capacity load by placing a blade-insertion type terminal in the end position of a printed board in the stare the terminal is fixed to a contact terminal, and inserting a receptacle to the blade-insertion type terminal. CONSTITUTION:A plurality of relays A having blade-insertion type terminals 7, 7 fixed to contact terminals 3, 4 have blade parts 7a the top end part side of which is turned outside in parallel to the surface of a printed board loaded with other electronic parts on one end part of the printed board. Two coil terminals 5, 6 and two auxiliary terminals 7b, 7b of each relay A are inserted to holes provided in the printed board, and fixed to and arranged on the printed board by soldering. Thus, when a one having a material or form sufficiently adaptable to a high capacity load is properly used, the high capacity load can be surely opened and closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay mounted on a printed circuit board.

[0002]

2. Description of the Related Art Conventionally, a relay of this type is usually connected to a load switching contact with a contact terminal connected to a load opening / closing contact together with a coil terminal connected to a coil. It is mounted on a printed circuit board by soldering to the wired copper foil surface.

[0003]

In the above-mentioned conventional relay, when a relatively large high-capacity load whose load current exceeds, for example, 10 amps is opened / closed by the load opening / closing contacts, printing by the load current is performed. In order to suppress heat generation on the board, it is necessary to increase the conductive area through which the load current flows.However, when the cross-sectional area of the copper foil wired on the load side is widened, the printed circuit board itself becomes larger and wider. However, when the amount of solder is increased, the workability is poor and the cross-sectional area is not uniform.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a relay that can be mounted on a printed circuit board so that a high capacity load can be reliably opened and closed by a load opening / closing contact. is there.

[0005]

In order to solve the above-mentioned problems, according to a first aspect of the present invention, in a relay mounted on a printed circuit board, the relay having a contact terminal connected to a contact for opening and closing a load. A blade-type terminal, which can be electrically connected to the load side without interposing, is fixed to the contact terminal.

According to a second aspect of the present invention, the plug-blade-type terminal electrically connects / disconnects the receptacle connected to the load side by inserting / removing it from at least one direction parallel to or perpendicular to the printed circuit board surface. It is designed to get you.

[0007]

According to the first aspect of the present invention, the blade-type terminal is
Since it is fixed to the contact terminal so that it can be electrically connected to the load side without going through the printed circuit board, if you use materials and shapes that are sufficiently compatible with high capacity loads, you can ensure that the high capacity The load can be opened and closed.

Further, according to the second aspect of the invention, the blade terminals are fixed to the contact terminals and mounted on the printed circuit board. Since it suffices to insert the receptacle into the blade-type terminal without being disturbed by the electronic parts, the work can be performed easily.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

The relay A has a base 1 as shown in FIG.
And the cover 2 are fitted to each other to form a rectangular parallelepiped housing.
Each of the contacts and an electromagnet that drives the two contacts to be opened and closed are housed, and two ends of the base 1 in the longitudinal direction are connected to two contacts for opening and closing the load. The contact terminals 3 and 4 of the same shape and the two coil terminals 5 and 6 connected to the coil wound around the electromagnet are led out in the same direction. These two coil terminals 5 and 6 are the base
The two contact terminals 3 and 4 are arranged in a straight line along the lateral direction of the base 1, but are arranged so as to be offset from each other in the longitudinal direction of the base 1 due to the positions of the two contacts.

At the bottom of the base 1, recesses 3a and 4a of the same shape include the lead-out portions of the two contact terminals 3 and 4, one end of which is opened on the short side surface of the base 1 and will be described later. It is formed so as to have a depth substantially the same as the plate thickness of the blade-type terminal 7. In addition, cuts 3b and 4b are
Are provided in the depth direction.

The blade-type terminal 7 is made of copper or a copper alloy plate.
A blade portion 7a having a hole in the center of the tip portion, an auxiliary terminal 7b extending orthogonally to the substantially central portion of the blade portion 7a, and orthogonal to the auxiliary terminal 7b at the rear end portion of the blade portion 7a. Fixed part bent in the direction
7c, that is, the blade portion 7a, the auxiliary terminal 7b, and the fixing portion 7c are in a positional relationship orthogonal to each other. Then, a claw portion 7d is projectingly provided on the rear end portion of the blade portion 7a, and the fixing portion 7c is formed.
There are provided two holes 7e and 7f corresponding to the cross-sectional shapes of the contact terminals 3 and 4.

Two of these blade-type terminals 7 are used, and as shown by an arrow in FIG. 2, one of the terminals has a contact terminal 3 in the hole 7e.
The other terminal can be shared by the two contact terminals 3 and 4 which are arranged offset from each other in the longitudinal direction of the base 1 by inserting the contact terminals 4 into the holes 7f. . And the two blade-type terminals 7 and 7 are attached to the fixing parts 7c and 7c.
c in the recesses 3a, 4a provided on the bottom of the base 1,
With d inserted into the cuts 3b and 4b provided on the short side surface of the base 1, insert the roots of the contact terminals 3 and 4, that is, the contact terminal 3 into the hole 7e and the contact terminal 4 into the hole 7f, respectively. By irradiating the part with a laser beam, the blade type terminals 7 and 7 are fixed to the contact terminals 3 and 4, and
As shown in FIG. 1, 3,4 are cut at their roots by the heat of the laser beam.

As described above, a plurality of relays A having the blade terminals 7 and 7 fixed to the contact terminals 3 and 4 are shown in FIG.
As shown in, the printed circuit board P on which other electronic components are mounted
Each relay A has two coil terminals 5, 6 and two coil terminals 5, 6 and 2 so that the blade end type terminal 7 at one end faces the outside with the tip end side of the blade end 7a parallel to the surface of the printed circuit board P. Auxiliary terminal 7b, 7
After b is inserted into the hole provided in the printed board P, it is fixed to the printed board P by soldering and arranged in a line.

Then, as shown in FIG. 1, the receptacle B connected to the load side is parallel to the surface of the printed circuit board P without being disturbed by other electronic parts, and two plug blade types from the outer side are formed. The terminals 7 and 7 can now be inserted into and removed from the blade parts 7a and 7a to electrically connect and disconnect, the coil current is passed to the coil terminals 5 and 6 and the two contacts of relay A are driven by electromagnets. Then, the load current is switched via the receptacle B and the blade terminals 7, 7.

Next, a second embodiment will be described below with reference to FIGS. This is different only in the shape of the blade-type terminal 7 from the first embodiment, and other configurations are the same as those in the first embodiment.
Same as the embodiment.

That is, in the blade-type terminal 7 of the first embodiment,
Although the blade portion 7a, the auxiliary terminal 7b, and the fixed portion 7c were in a positional relationship orthogonal to each other, in the blade edge type terminal 7 of this embodiment, the blade portion 7a and the auxiliary terminal 7b are opposite to each other. The fixed portion 7c is arranged in a direction perpendicular to the direction. Therefore, using two of these blade-type terminals 7
As in the case of the embodiment, as shown in FIG. 5, the fixing portions 7c, 7c are provided in the concave portions 3a, 4a provided in the bottom portion of the base 1, and the claw portions 7d, 7d are provided in the short side surface of the base 1. By irradiating the roots of the contact terminals 3, 4 with a laser beam while being fitted in the cuts 3b, 4b provided, the blade-type terminals 7, 7 are fixed to the contact terminals 3, 4.

As described above, the relay A having the blade terminals 7 and 7 fixed to the contact terminals 3 and 4 is as shown in FIG.
When mounted on the printed circuit board P at a position surrounded by other mounted electronic components, the tip end side of the plug blade portion 7a is oriented in a direction perpendicular to the surface of the printed circuit board P.

Then, as shown in FIG. 4, the receptacle B connected to the load side is perpendicular to the surface of the printed circuit board P without being disturbed by other electronic components surrounding it, and two receptacles B are arranged from above. It becomes possible to insert / remove the blade terminals 7a, 7a of the blade terminal 7
When a coil current is applied to the relay A and the two contacts of relay A are driven by an electromagnet, receptacle B and blade terminal 7,
The load current will be switched via 7

In the relay A, the first and the second
In any of the examples, the blade terminals 7, 7 are
Since it is fixed to the contact terminals 3 and 4 so that it can be electrically connected to the load side without going through the printed circuit board P, a material or shape of copper or copper alloy that is sufficiently compatible with high capacity loads can be used. If used, the high-capacity load can be opened and closed without fail, and the contact blade terminals 3 and 4 are fixed to the blade terminals 7 and 7 on the printed circuit board P, and then mounted on the surface of the printed circuit board P. On the other hand, in the first embodiment, the receptacle B is simply inserted into the blade-type terminals 7 and 7 from the outside in the parallel direction and in the second embodiment from the right angle and the upward direction without being disturbed by other electronic components. Since it is good, it is possible to work reliably and easily.

The receptacle B is a printed circuit board P.
In parallel with the surface of the first embodiment and at right angles in the second embodiment, they can be inserted into and removed from the blade terminals 7 and 7 to make electrical connection and disconnection. In consideration of the positional relationship with the parts, the shape of the blade terminal 7 may be changed so that it can be inserted / removed from a parallel or right-angled intermediate direction, for example, a direction of 45 ° with respect to the surface of the printed board P 1.

The receptacle B is a blade terminal.
As long as it can be inserted into and removed from the blade terminals 7 and 7 and can be electrically connected and disconnected, such as being separated into two pieces so that they can be inserted into and removed from each of the 7 and 7, separately It is not limited to the example.

Further, in this embodiment, the auxiliary terminal 7b of the blade-type terminal 7 is inserted into a hole provided in the printed board P to fix the blade-type terminal 7 to the printed board P, and then soldered. Although connected, it may be used as a part of the conductive circuit if the current flowing can be reduced by drawing the circuit power source of the printed circuit board P from the load side power source of the receptacle B.

Further, in the present embodiment, the contact terminals 3 and 4 use a laser beam to fix the blade terminals 7 and 7,
Although it is cut at the root part, it is also possible to adjust the intensity of the laser beam so that it will not be cut.In that case, the fixing force to the printed circuit board P of the relay A increases, and at the same time, the above-mentioned blade type Like the auxiliary terminal 7b of the terminal 7, it can be used as a part of a conductive circuit.

Further, the blade terminals 7 and 7 may be fixed by other fixing means such as resistance welding without using a laser beam.

[0026]

According to the first aspect of the present invention, the blade-type terminal is fixed to the contact terminal so as to be electrically connected to the load side without using the printed circuit board. By appropriately using a material and a shape that are sufficiently compatible with the load, the high capacity load can be opened and closed with certainty.

According to another aspect of the present invention, the blade terminals are fixed to the contact terminals and mounted on the printed circuit board, and at least one direction parallel to or perpendicular to the surface of the printed circuit board is used. Since it suffices to insert the receptacle into the blade-type terminal without being disturbed by the electronic parts, the work can be performed easily.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state before the blade-type terminal of the above is fixed to a contact terminal.

FIG. 3 is a perspective view showing a state where the above relay is mounted on a printed circuit board.

FIG. 4 is a perspective view showing a second embodiment of the present invention.

FIG. 5 is a perspective view showing a state before the blade type terminal of the same is fixed to a contact terminal.

FIG. 6 is a perspective view showing a state in which the above relay is mounted on a printed circuit board.

[Explanation of symbols]

 A Relay B Receptacle P Printed circuit board 3 Contact terminal 4 Contact terminal 7 Plug blade type terminal

Claims (2)

[Claims] 1. A relay having a contact terminal connected to a load opening / closing contact and mounted on a printed circuit board, wherein a blade-type terminal that can be electrically connected to the load side without the printed circuit board is the contact. A relay characterized by being fixed to the terminals. 2. The plug-blade type terminal is characterized in that the receptacle connected to the load side can be inserted / removed from at least one direction parallel to or perpendicular to the surface of the printed circuit board to make electrical connection / disconnection. The relay according to claim 1.