TWI513115B - Press-contact connector - Google Patents

Description

Crimp connector

The present invention relates to a crimp type connector that is mainly used as a connector for battery connection in a small electronic device such as a mobile phone.

In the connection between the small electronic device main body such as a mobile phone and the battery for power supply, the crimp type connector used has a push-fit spring by a coil spring or the like and can be press-fitted from the front end of the insulating case. Prominent movable contact.

The pressure-contact type connector includes an insulating case having a contact accommodating portion that is open at the distal end side, a movable contact slidably received in the contact accommodating portion in the front-rear direction, and is housed in the contact accommodating portion. And applying a reaction force to the closing member that closes the rear end of the contact accommodating portion, pushing the movable contact member toward the protruding end from the front end surface, and connecting the connecting substrate to the connecting substrate in a state of being in elastic contact with the movable contact member at any time. Substrate connection terminal.

The conventional movable contact member used in the crimp type connector is widely used as a pin-shaped structure by various machining or drawing processing of a lathe, a milling machine, and a press, and in recent years, considering the processing cost, A movable contact member which is formed by punching a conductive metal plate having elasticity and is manufactured by bending is developed (for example, Patent Document 1).

The movable contact member includes a pair of parallel piece portions facing each other in the front-rear direction and a front edge portion connecting the parallel pieces The contact piece portion is formed in a U-shape or the like as viewed from the side when there is a space between the two parallel piece portions.

[Previous Technical Literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2011-238634

However, in the prior art as described above, when the crimping type connector is used to attach or detach a power source battery or the like, or when measuring the performance of the product, the external force acts in a direction different from the sliding direction with respect to the movable contact member, thereby making it possible to make movable contact. Piece of deformation.

Among such a crimp type connector, the size of the movable contact member is 1 to 2 mm in length and 1 mm or less in width, which is a very small size, and it is often accompanied by difficulty in bending such a small movable contact member.

Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a crimp type connector which has a high strength and an action of a movable contact member for an external force acting in a direction different from a sliding direction with respect to a movable contact member. Easy to carry out.

A feature of the invention of claim 1 which solves the above-mentioned problems and achieves the desired object, and includes a housing having a contact accommodating portion that is open at the distal end, and is slidably received in the front-rear direction. The above connection a movable contact member in the contact accommodating portion and a push-out spring that is received in the contact member accommodating portion to bias the movable contact member in a direction protruding from the front end surface; and the movable contact member is embossed by the conductive metal plate The cutting and bending process includes: a pair of parallel piece portions facing each other in the front-rear direction and a contact piece portion connecting the front edge portions of the two parallel piece portions; and integrally provided: A reinforcing piece portion between the two parallel piece portions, the reinforcing piece portion is formed to support the inner side surface of the parallel piece portion with a side edge in a direction between the two parallel piece portions.

The invention of claim 2, wherein the movable contact member includes: a spring supporting piece portion that rises in shape from a rear end side of the one of the parallel piece portions toward the other side; The reinforcing piece portion is integrally formed with a supporting piece portion that is bent forward from the side edge of the spring supporting piece portion.

According to the invention of claim 3, in the claim 1 or 2, the reinforcing piece portion is formed in a shape in which a leading edge portion is along an inner side surface of the contact piece portion.

The pressure-bonding connector according to the present invention includes the housing having the contact accommodating portion opened at the front end, the movable contact slidably received in the contact accommodating portion in the front-rear direction, and the movable contact member. a push-out spring that biases the movable contact member in a direction protruding from the front end surface in the contact accommodating portion; and the movable contact member is provided to face each other by punching and bending the conductive metal plate Oriented a pair of parallel piece portions in the front-rear direction and a contact piece portion connecting the front edge portions of the two parallel piece portions; and integrally provided with a reinforcing piece portion disposed between the two parallel piece portions, the reinforcing piece portion The inner side surface of the parallel piece portion is supported by the side edge in the direction between the two parallel piece portions; the movable contact can be made in contact with an external force in a direction different from the sliding direction when the battery or the like is attached or detached The endurance of the piece is strengthened to prevent deformation of the movable contact.

In the present invention, the movable contact member includes: a spring supporting piece portion that rises in shape from a rear end side of the one of the parallel piece portions toward the other side; and the reinforcing piece portion and the spring supporting piece portion The support piece portion having a side edge bent toward the front is integrally formed; whereby the bending portion can be bent so that the reinforcing sheet portion is disposed between the two parallel pieces without applying a load to the portion where the external force acts, in particular Even a small structure with a total length of 1 to 2 mm can be bent and processed. When the support piece for supporting the reinforcing piece portion is placed in the insulating case at any time, the weak portion can be prevented from being exposed to the outside.

Further, in the invention, the reinforcing piece portion is formed in a shape in which the leading edge portion is along the inner side surface of the contact piece portion; whereby the endurance of the movable contact member can be appropriately adjusted with respect to an external force acting in a direction different from the sliding direction. Strengthened.

Next, an embodiment of the crimp type connector of the present invention will be described based on the embodiments shown in Figs. 1 to 7 . Figure 1 shows the crimp connection The figure B is a connection board mounted on a small device such as a mobile phone.

The pressure-bonding type connector 1 includes a plurality of movable contacts 3, 3, ... that are detachably housed in the insulating case 2, and a substrate connection terminal 4 that is in a state of being in contact with the movable contact 3 at any time; When the movable contact 3 is pressed against the contact terminal portion of the connection target of the battery or the like, the connection target of the battery or the like is electrically connected to the connection substrate B via the substrate connection terminal 4 connected to the connection substrate B.

As shown in FIG. 4, the connection substrate B is provided with a recess 5 for inserting the crimp connector 1 at the edge portion, and the crimp connector 1 is mounted such that the lower half of the insulating case 2 is embedded in The state of the recess 5. In the figure, reference numeral 6 is a terminal connection pattern to which the substrate connection terminal 4 is connected, and reference numeral 7 is a through hole to which the shield member 8 is connected.

The insulating case 2 is molded by an insulating resin material, and has projecting portions 9, 9, 10, and 10 at the upper edge portion and the rear upper edge portion of the both sides, by which the projecting portion 9 is provided. 9, 10, 10 are supported by the inner peripheral edge portion of the concave portion 5 of the connection substrate B, and are attached to the connection substrate B in a state in which the lower half of the insulating case 2 is fitted into the concave portion 5. Here, the front and rear sides are such that the sliding direction of the movable contact 3, that is, the protruding side of the movable contact 3 is the front side, and the vertical direction is the height direction of the connector.

The shield members 8 and 8 made of a conductive metal plate are assembled on the upper surface portion of the insulative housing 2, and the connecting pieces 8a and 8a having a shape bent downward from the side edge of the main body of the shield member 8 are inserted. The outlet portions 9 and 9 protrude toward the lower surface side of the extension portion, and are fixed to the connection substrate B by welding or the like. Perforations 7, 7.

The insulating case 2 is formed in parallel with each other and arranged in the connector width direction, and a plurality of contact accommodating portions 11 and 11 ... which are quadrangular holes in the front-rear direction are formed, and the contact accommodating portions 11 , 11 ... Openings 11a and 11b are provided at the front and rear ends.

In the left and right inner side portions of the contact accommodating portion 11, the sliding grooves 12 and 12 which are opened toward the rear end direction at the rear end of the insulating case 2 are formed at intervals in the upper and lower inner portions, and are directed toward the side of the movable contact 3 The protruding sliding sheets 13, 14 are inserted into the sliding groove 12, and the sliding sheets 13, 14 are guided by the sliding groove 12, and the movable contact 3 can be inserted into the contact receiving portion 11 from the side of the rear end opening 11b. And the movable contact 3 can be slid in the front-rear direction in the contact accommodating portion 11 in a state in which it cannot rotate.

By abutting and fixing the slide pieces 13 and 14 to the inner edge portion of the front end of the slide groove 12, the movable contact 3 can be prevented from falling off at a position where the front end of the insulating case 2 can be preliminarily pressed.

The movable contact 3 is formed by punching a conductive metal plate so as to form the plate member 15 shown in Fig. 7, and the respective plate members 15 are as shown in Figs. 5 and 6 a pair of parallel piece portions 16 and 17 that are formed to face each other in the vertical direction and that are parallel to each other in the vertical direction, and a contact piece portion 18 that connects the front end edges of the two parallel piece portions 16 and 17 and And a spring support piece 19 that is bent from the rear end of the parallel piece portion 17 toward the other parallel piece portion 16 and disposed at the rear end of the movable contact 3; and is integrally provided with the two parallel piece portions 16 The reinforcing piece portion 20 disposed between the two.

The contact piece portion 18 has a sloped surface facing the lower front side by bending the elongated plate-shaped member 15 shown in Fig. 7 at predetermined crease portions 18a and 18a, and the front end side of the inclined surface is formed to be curved. The arcuate shape is arranged such that the parallel piece portions 16 and 17 are extended from the upper end edge and the lower end edge of the contact piece portion 18 toward the rear in the horizontal direction.

The contact piece portion 18 is guided by a connection target of a power source battery or the like that is approached from the upper side of the connector by the inclined surface that is inclined toward the front lower side, and the connection terminal portion of the connection target is in contact with the contact piece portion 18. The front end of the sliding direction.

The parallel piece portions 16 and 17 are formed in an elongated plate shape that is long in the front-rear direction, and a sliding piece 13 is integrally formed in a shape that protrudes outward in the horizontal direction at both rear end portions of the respective parallel piece portions 16 and 17 . 14. The slide piece 13 on the side of the parallel piece portion 16 has a connection portion 13a that is formed to extend rearward, and is supported by the reel 21 for supplying the component via the connection portion 13a, and is cut when the bending process is performed. from.

The spring support piece portion 19 is formed in an elongated plate shape having a width narrower than the width of the parallel piece portion 17, and is bent from the fold portion 19a into an arc shape from the rear of the one of the parallel piece portions 17. The end edge is bent toward the other parallel piece portion 16 side, and is disposed on the rear end surface portion of the movable contact 3, and the spring supporting piece portion 19 is pressed by a push-out spring 22 such as a coil spring to push the movable contact member 3 toward the pushing-out direction. Bullet pressure. In the figure, reference numeral 23 is a fitting recess in which the front end portion of the spring supporting piece portion 19 formed by the other parallel piece portion 16 is fitted.

The spring supporting piece portion 19 is disposed to be offset from the parallel piece portion 17 The reinforcing sheet portion 20 is supported by one of the width direction and the side edge of the other side with the support piece portion 24 bent toward the front.

The support piece portion 24 is formed such that the width in the vertical direction is smaller than the width in the vertical direction of the reinforcing piece portion 20, and by using the portion as the crease portion, the reinforcing piece portion 20 is easily directed forward.

The reinforcing piece portion 20 is formed in a quadrangular shape that is long in the front-rear direction, and the front edge portion is formed along the inner side surface of the contact piece portion 18, that is, the bevel portion 20a that is inclined toward the front lower side at the front edge portion. .

The reinforcing piece portion 20 is bent forward, and is disposed in the vertical direction, that is, the quadrangular short side direction, in the direction between the two parallel piece portions 16 and 17 in the two parallel piece portions 16, 17 The lower edge portion 20b is brought into contact with the inner side surface of the lower parallel piece portion 17, and the upper edge portion 20c is brought into contact with the inner side surface of the upper parallel piece portion 16.

Thereby, the parallel piece portions 16 and 17 are cooperatively supported by the reinforcing piece portion 20 with respect to the external force acting on the movable contact member 3 in a direction different from the sliding direction, and the reinforcing piece portion 20 functions as a reinforcing member to prevent the reinforcing piece portion 20 from functioning as a reinforcing member. The deformation of the movable contact 3.

By forming the oblique portion 20a along the inner side surface of the contact piece portion 18 at the front edge portion of the reinforcing piece portion 20, the contact piece portion 18 is supported by the oblique side portion 20a, and is oriented differently from the sliding direction. The external force of the action can exert higher endurance.

By allowing the reinforcing piece portion 20 to be supported by the spring supporting piece portion 19 via the supporting piece portion 24, the punching member 15 can be formed into the shape shown in Fig. 7, whereby the members 15 and 15 can be placed between The distance is narrower and will be punched out The waste of the conductive metal material to be produced is minimized, and the reinforcing sheet portion 20 can be bent into the two parallel piece portions 16 without any burden at other portions such as the parallel piece portion during the bending process. 17 between.

The spring 22 is formed of a coil spring or the like, and the rear end portion abuts against the closing plate portion 30 of the substrate connecting terminal 4 as a closing member for closing the rear end opening portion 11b of the contact housing portion 11. Further, the front end is brought into contact with the spring supporting piece portion 19, and is housed in the contact receiving portion 11, whereby the movable contact 3 is biased in the pushing direction.

On the other hand, the substrate connection terminal 4 is formed by punching and bending a conductive metal plate having elasticity, and is integrally provided with the rear end opening of the contact accommodating portion 11 closed to face in the vertical direction. The closing plate portion 30, the elastic contact piece portion 31 extending obliquely upward from the lower end of the closing plate portion 30 toward the front, and the connecting terminal portion 32 having a shape bent rearward from the upper end of the closing plate portion 30.

The closing plate portion 30 is formed in an elongated plate shape that is long in the vertical direction, and press-fitting pieces 33 and 33 for fixing the substrate connection terminal 4 to the insulating case 2 are formed on both side edges thereof.

The press-fitting piece 33 is formed by bending the front end side of the support portion that protrudes outward from the both side edges of the closing plate portion 30 toward the outside, and presses the press-in piece 33 into the insulating case. The press-fitting hole 34 of the rear end of the body 2 is fixed to the insulating case 2 when the closing plate portion 30 closes the rear end opening of the contact accommodating portion 11.

The elastic contact piece portion 31 is formed in an elongated plate shape in which the arc-shaped contact portion 35 is formed at the tip end and is oriented in the front-rear direction, and the substrate connection terminal 4 is formed. The insulating case 2 is fixed to the terminal receiving groove 36 formed in the inner bottom surface portion of the contact accommodating portion 11 in the front-rear direction, and the contact portion 35 at the front end elastically contacts the lower surface portion of the movable contact 3 at any time.

In the pressure-contact type connector 1 of this configuration, the end portion of the connection target of the power source battery or the like is approached from the upper side toward the connector front end side, and the connection is guided to the inclined surface inclined toward the front lower side of the contact piece portion 18. The end portion of the object is brought into contact with the distal end of the movable contact 3 in the sliding direction of the connecting terminal portion exposed at the end surface of the connecting object.

At this time, in the movable contact 3, an external force in a direction different from the sliding direction acts, and the reinforcing piece portion 20 is provided between the two parallel piece portions 16, 17 by the outer edge of the reinforcing piece portion 20. The portions that abut against the inner side surface, that is, the two parallel piece portions 16, 17 and the contact piece portion 18 are supported by the reinforcing sheet portion 20, can be made higher with respect to the external force that deforms the movable contact member 3. Endurance, whereby deformation of the movable contact 3 can be prevented.

In the above-described embodiment, the contact piece portion of the movable contact 3 is formed to have a shape inclined toward the front lower side, and the shape of the contact piece is not limited thereto, and the shape curved in an arc shape may be used. . In this case, it is preferable that the front end portion of the reinforcing piece portion is formed in an arc shape along the inner side surface of the contact piece portion.

In the above embodiment, an example in which a plurality of movable contacts are provided with respect to one insulating case is described, and one movable contact may be provided in one insulating case.

In the above embodiment, although the insulating housing is assembled to be embedded in The concave portion formed at the edge of the connection substrate B is described as being attached to the connection substrate.

B‧‧‧Connecting substrate

1‧‧‧Crimping connector

2‧‧‧Insulated housing

3‧‧‧ movable contact

4‧‧‧Substrate connection terminal

5‧‧‧ recess

6‧‧‧Terminal connection pattern

7‧‧‧Shield pattern

8‧‧‧Shielding members

9‧‧‧Outreach

10‧‧‧Outreach

11‧‧‧Contact parts containment

12‧‧‧Sliding groove

13‧‧‧Slide

14‧‧‧Slide

15‧‧‧ Plate-like members

16‧‧‧Parallel

17‧‧‧Parallel

18‧‧‧Contacts

19‧‧‧Spring support

20‧‧‧Reinforcement

21‧‧‧ reel

22‧‧‧Introduction of springs

23‧‧‧ fitting recess

24‧‧‧Supporting

30‧‧‧Closed board

31‧‧‧Flexible contact parts

32‧‧‧Connecting terminal

33‧‧‧ Pressing film

34‧‧‧Indented hole

35‧‧‧Contact Department

36‧‧‧Terminal containment ditch

Fig. 1 is a perspective view showing an example of a crimp type connector of the present invention.

Fig. 2 is a perspective view as seen from the lower side of the back side of the same structure.

Fig. 3 is a longitudinal sectional view of the same structure.

Fig. 4 is a plan view showing an example of the connection substrate in Fig. 1.

Fig. 5 is a perspective view showing the movable contact member in Fig. 1.

Fig. 6 is a vertical cross-sectional view showing the positional relationship between the two parallel piece portions and the reinforcing piece portion of the movable contact member having the same structure.

Fig. 7 is a developed view of the movable contact member constructed as above.

1‧‧‧Crimping connector

2‧‧‧Insulated housing

3‧‧‧ movable contact

4‧‧‧Substrate connection terminal

8‧‧‧Shielding members

8a‧‧‧Connecting piece

9‧‧‧Outreach

10‧‧‧Outreach

11‧‧‧Contact parts containment

11a‧‧‧ Opening

16‧‧‧Parallel

17‧‧‧Parallel

18‧‧‧Contacts

20‧‧‧Reinforcement

32‧‧‧Connecting terminal

B‧‧‧Connecting substrate

Claims (3)

A pressure-contact type connector includes: a housing having a contact accommodating portion opened at a front end; a movable contact slidably received in the contact accommodating portion in a front-rear direction; and being housed in the contact accommodating portion a push-out spring that biases the movable contact member in a direction protruding from the front end surface; wherein the movable contact member has a direction in which the conductive metal plate is opposed to each other by punching and bending a pair of parallel piece portions in the front-rear direction and a contact piece portion connecting the front edge portions of the two parallel piece portions; and integrally including a reinforcing piece portion that is oriented between the parallel piece portions The direction between the two parallel piece portions is formed such that both edges abut against the inner side surfaces of the respective parallel piece portions. The pressure-contact type connector according to the first aspect of the invention, wherein the movable contact member includes: a spring support piece portion that rises in shape from a rear end side of the one of the parallel piece portions toward the other side; The reinforcing piece portion is integrally formed with a supporting piece portion that is bent forward from the side edge of the spring supporting piece portion. The crimping type connector according to claim 1 or 2, wherein the reinforcing piece portion is formed in a shape in which a leading edge portion is along an inner side surface of the contact piece portion.