JPH10208801A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector which can be miniaturized in the transverse direction. SOLUTION: In a first receiving chamber 24 with in a connector housing 21, a cutout 24B is formed in its bottom surface 24A, from which a pin-shaped terminal 11 can advance thereinto. In this first receiving chamber 24, a compression coil spring 40 is disposed along the axial direction of the pin-shaped terminal 11 and a round-shaped plate part 32 of a flat plate-shaped terminal 30 manufactured by using a JIS standard LA terminal is arranged on an end part of the compression coil spring 40. The pin-shaped terminal 11, when it advances into the first receiving chamber 24, moves in the entering direction of the flat plate-type terminal 30 and, in keeping therewith, the compression coil spring 40 is compressed, and contact pressure is secured by its elastic reaction. Because the disposing direction of the compression coil spring 40 for securing this contact pressure is made parallel to the entering direction of the pin-shaped terminal 11, this connector does not enlarge in the transverse direction like a conventional one.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for ensuring contact pressure with an elastic member.

[0002]

2. Description of the Related Art A connector shown in FIG. 4 is conventionally known as this type of connector. The connector 1 is provided at the tip of a battery B of a cassette type, and makes electrical connection with a pin-shaped terminal 2 provided in a battery insertion portion of an electric device. A leaf spring-like contact 3 is provided in the connector 1 so as to be able to abut against the pin-shaped terminal 2, and a contact pressure is secured by its elastic reaction force. This contact 3
Is provided with a contact member 4 against which the pin-shaped terminal 2 is abutted on the distal end side, and a terminal fitting 7 whose base end side is fixed to the electric wire D, and a screw 8 on the screw tightening base 5A of the connector housing 5.
It is fixed at.

[0003]

In the conventional connector described above, since the contact 3 has a leaf spring shape, it is necessary to secure a space in the lateral direction of the connector housing 5. Further, the contact 3 is bent and inclined at the time of contact, and the contact position with the pin-shaped terminal 2 is shifted in the horizontal direction. Therefore, the contact material 4 must be provided over a wide range in the horizontal direction. Did not. For these reasons, the conventional connector has a problem that it becomes larger in the horizontal direction as a whole.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector which can be downsized in a lateral direction.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is to provide a connector housing having a connection chamber in which a pin-shaped terminal can enter, and in the connection chamber, a direction in which the pin-shaped terminal enters. A characteristic feature is that a coil spring is disposed along the terminal, and a terminal fitting connected to an electric wire is provided at an end of the coil spring on the pin-type terminal side so as to be movable in a direction in which the pin-type terminal enters.

According to a second aspect of the present invention, in the connector according to the first aspect, the terminal fitting is formed of an LA terminal having a hole in the center of a round plate, and a contact material is provided in the hole. Also, the present invention is characterized in that the round plate portion is arranged at the end of the coil spring.

According to a third aspect of the present invention, in the connector according to the second aspect, the LA terminal is bent at a substantially right angle between the wire crimping portion and the round plate portion, and the wire crimping portion extends along the axial direction of the coil spring. It has a characteristic where it is arranged.

[0008]

According to the first aspect of the present invention, when the pin-shaped terminal enters the connection chamber of the connector housing, the coil spring is pushed and compressed via the terminal fitting, and the pin-shaped terminal is compressed by the elastic reaction force. The contact pressure is secured between the terminal and the terminal fitting.

Here, since the coil springs are arranged along the direction in which the pin-shaped terminals enter, the coil springs do not increase in the lateral direction unlike the conventional connector. Further, since the moving direction of the terminal fitting is the direction of entry of the pin-shaped terminal, the contact positions of the two are not shifted, and the range of contact with the pin-shaped terminal does not need to be expanded in the lateral direction. Therefore, the connector can be downsized in the lateral direction.

According to the second aspect of the present invention, the LA terminal is determined by the JIS standard, can be mass-produced and can be obtained at a low price, and the terminal fitting is provided with a contact material in the hole portion using the LA terminal. Since it can be manufactured only by itself, the manufacturing cost of the connector can be reduced.

According to the third aspect of the present invention, since the wire crimping portion of the LA terminal extends along the axial direction of the coil spring, a space for the wire crimping portion and the wire crimped there is secured in the lateral direction. And the connector can be downsized in the lateral direction.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment to which the present invention is applied will be described below with reference to FIGS. The connector 20 of the present embodiment is provided in a cassette type battery B, and is used for electrical connection with an electric device that receives power from the battery B.

FIG. 1 shows a part of a back wall 10 of a battery insertion portion provided in an electric device. Back wall 10
, A pin-shaped terminal 11 is integrally formed upward by insert molding. The lower part of the back wall 10 in FIG. 1 forms an electric wire accommodating chamber 12, and an end portion 13 of the pin-shaped terminal 11 protruding into the electric wire accommodating chamber 12 is a male screw. The terminal 14 is fixed by tightening the nut N1. This LA terminal 14 is
According to S standard (JIS term number, D0103),
Round plate portion 16 having hole 15 formed at center and wire crimping portion 1
The end 13 of the pin-shaped terminal 11 is passed through the hole 15. In addition, an end of the pin-shaped terminal 11 that projects upward from the back wall 10 in FIG.

The connector 20 is provided at the lower end of the battery B, and is provided inside a connector housing 21 provided in the connector 20 with a flat terminal 30 connectable to the pin terminal 11 (the "terminal fitting" of the present invention). ) Are accommodated.

The flat terminal 30 is formed using an LA terminal according to the JIS standard described above. Flat terminal 3
Reference numeral 0 denotes a bent portion formed between the round plate portion 32 of the LA terminal and the wire crimping portion 33 at a substantially right angle, and a rivet-shaped contact member 34 is inserted into the hole 31 formed at the center of the round plate portion 32. Have. The contact member 34 is made of, for example, a clad material that can withstand an arc that may be generated when the contact member 34 comes into contact with or separates from the pin-shaped terminal 11. The flat terminal 30 is connected to the electric wire D2 extending from the battery B body to the electric wire crimping portion 33,
The compression coil spring 40 is housed in the connector housing 21 with the compression coil spring 40 pressed against the round plate portion 32.

The connector housing 21 has a bottomed cylindrical housing body 22 having a notch 24B in a bottom wall 24A.
And a pressing lid 23 fixed to an opening on the upper surface of the housing main body 22 by locking means (not shown). In the housing body 22, a first storage chamber 24 having a circular flat cross section and a second storage chamber 25 having a semicircular flat cross section communicating with the side of the first storage chamber 24 are arranged in the vertical direction. It is formed to extend. In the first accommodating chamber 24, the round plate portion 32 of the flat terminal 30 and the round plate portion 3
The compression coil spring 40 is accommodated so as to overlap the upper part 2, and the wire crimping portion 33 of the flat terminal 30 is accommodated in the second accommodation chamber 25. As a result, the flat terminal 30 is guided vertically by the inner peripheral surfaces of the chambers 24 and 25, and the compression coil spring 40 is supported so as not to buckle. In addition, the notch 24B described above is
0 at the position facing the contact material 34,
The size is such that the round plate portion 32 of the flat terminal 30 cannot pass through. Then, the connecting portion 18 of the pin-shaped terminal 11 enters into the first accommodation chamber 24 via the notch 24B and comes into contact with the contact material 34 of the flat-plate terminal 30.

A protrusion 26 is formed at a position corresponding to the first storage chamber 24 in the holding lid 23, and is inserted into a compression coil spring 40. The protruding portion 26 is provided with a tapered portion 26A whose diameter is increased on the base end side thereof. The compression coil spring 40 is guided by the tapered portion 26A and is centered at the center of the first storage chamber 24. An insertion hole 27 through which the wire crimping portion 33 can be inserted is formed at a position corresponding to the second storage chamber 25 in the holding lid 23, from which the wire D is drawn out of the connector housing 21 and a flat plate is formed. When the shaped terminal 30 moves upward, the wire crimping portion 33 does not interfere with the holding lid 23.

Next, the operation of the present embodiment having the above configuration will be described. When the battery B is inserted to the innermost part of the battery insertion portion of the electric device, the pin-shaped terminal 11 enters the first housing chamber 24 of the connector 20 provided at the tip of the battery B via the notch 24B. Then, the flat terminal 30 is pressed with the end of the pin terminal 11 abutting against the contact material 34. The flat terminal 30 is guided in the housing body 22 in the direction in which the pin terminal 11 enters, and moves upward in FIG. 1 while maintaining the state in which the tip of the pin terminal 11 contacts the contact material 34. . With this movement, the compression coil spring 40 is compressed and contracted, and a contact pressure is secured between the pin-shaped terminal 11 and the plate-shaped terminal 30 by the elastic reaction force, and as shown in FIG. 24A comes into contact with the back wall 10, and the insertion of the battery B is completed.

Here, since the direction in which the compression coil spring 40 is disposed is along the direction in which the pin-shaped terminal 11 enters, it does not increase in the lateral direction unlike the conventional connector. Also,
As described above, since the moving direction of the flat terminal 30 is the direction of entry of the pin terminal 11 and the contact positions of the two terminals do not shift, the contact material 34 does not need to be spread in the lateral direction. Further, the flat terminal 30 is made of L which is mass-produced and can be obtained at low cost.
Since the connector 20 is manufactured using the A terminal, the manufacturing cost of the connector 20 can be reduced. Thus, a connector that can be downsized in the lateral direction can be provided at low cost.

<Other Embodiments> The present invention is not limited to the above embodiments. For example, the following embodiments are also included in the technical scope of the present invention.
In addition to the following, various changes can be made without departing from the scope of the invention.

(1) In this embodiment, the flat terminal 30
Is manufactured using LA terminals, but may be manufactured from a metal plate material exclusively for the connector 20 by punching or the like.

(2) In the present embodiment, the connector provided with the connector to which the present invention is applied is provided in the battery B. However, for example, the connector can be used to detect the opening and closing of a sliding sliding door of an automobile or the like.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a connector according to an embodiment of the present invention.

FIG. 2 is a sectional side view of the disassembled state.

FIG. 3 is a side sectional view of the connection state.

FIG. 4 is a side sectional view of a conventional connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Pin type terminal 20 ... Connector 21 ... Connector housing 24 ... First accommodating room (connection chamber) 30 ... Plate type terminal (terminal fitting) 31 ... Hole (hole) 32 ... Round plate part 33 ... Electric wire crimping part 34 ... Contact material 40 ... Compression coil spring

Claims (3)

[Claims] A connection chamber in which a pin-shaped terminal can enter is provided in a connector housing, and a coil spring is disposed in the connection chamber along a direction in which the pin-shaped terminal enters, and a coil spring on the pin-terminal side of the coil spring is provided. A connector characterized in that a terminal fitting connected to an electric wire is provided at an end portion so as to be movable in a direction in which the pin-shaped terminal enters. 2. The terminal fitting is formed of an LA terminal having a hole in the center of a round plate, provided with a contact material in the hole, and connected to the end of the coil spring by the round plate. The connector according to claim 1, wherein the connector is disposed in a portion. 3. The LA terminal according to claim 1, wherein a portion between the wire crimping portion and the round plate portion is bent at a substantially right angle, and the wire crimping portion is disposed along an axial direction of the coil spring. Item 2. The connector according to Item 2.