JP2002208389A - Battery connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable saving space for disposal of electrode leads and to make a connection work between the electrode leads and a power source board surely and without trouble. SOLUTION: The battery connector comprises housing 2 for fitting a board slit 5 for inserting a board PCB, a second contact forming a fixing part 11 for its base part to be fixed to the housing 2 with and forming a contact end 12 extended from the fixing part 11 and bent so as to be positioned in the board slit, and a first contact 4 forming a fixing part 13 for its base part to be fixed to the housing 2 with, and having a welded part 14 for a lead plate BAT1 to be welded on the surface of the housing 2 exposed and extended from the fixing part 13 and forming a contact end part 16 extended and bent so as to be positioned in the board slit 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

2. Description of the Related Art Conventionally, a rechargeable battery mounted in an electronic device such as a mobile phone has a flat electrode lead extending from its electrode, and a power supply provided in the electronic device. The connection between the rechargeable battery and the power supply board has been completed by directly soldering to the substrate or by soldering the electrode lead extended from the power supply board and the electrode lead extending from the rechargeable battery in advance. The power supply board forms a rechargeable battery unit connected to the rechargeable battery, and is placed on the electronic device to electrically connect the rechargeable battery to the board in the electronic device when the rechargeable battery unit is stored in the electronic device. It is mounted so as to also serve as an electrode terminal.

[0002]

However, electronic devices such as mobile phones have a substrate on which electronic components are mounted,
Since the liquid crystal display device is installed in a narrow space, sufficient work space cannot be secured to directly solder the electrode leads extended from the rechargeable battery to the power supply board for control. There was a problem that can not be improved.

On the other hand, when the electrode leads are provided on the control power supply board and the rechargeable battery to improve workability, the electrode leads become longer and the electrode leads extend from the control power supply board. Although the workability is improved because the soldering work can be performed away from the power supply board for control, the work of attaching the electrode leads to the control power supply board in advance is necessary, which increases the number of work steps and also makes it impossible to improve production efficiency. I had. Further, a space for removing the extended electrode lead is required in an electronic device such as a mobile phone, and thus there is a problem that the electronic device such as a mobile phone cannot be downsized. There is a problem that the production efficiency cannot be improved because the state must be considered and an insulating cover or the like is separately provided.

Conventionally, a contact portion is formed by etching on a power supply board electrically connected to a rechargeable battery, and the contact portion is brought into contact with a contact provided inside the electronic device to connect to the electronic device. However, in this case, the contact portion formed by etching could only obtain a thickness of about 40 micrometers, and the contact portion sometimes caused poor contact.

Accordingly, the present invention has been made in view of these problems,
An object of the present invention is to make it possible to connect a rechargeable battery and a control power supply board that do not take up space at the end of an electrode lead so as to contribute to miniaturization of an electronic device such as a mobile phone.

[0006]

Means for Solving the Problems Therefore, the present invention provides

A housing provided with a substrate slit into which the substrate can be inserted, and a base provided on the housing, the base forming a fixed part fixed to the housing, extending from the fixed part to the surface of the housing and connected to a lead plate of a rechargeable battery. A first contact provided with a contact portion extending from the fixed portion and having a contact end bent to be located in the substrate slit.

[0008] and

A housing provided with a substrate slit into which a substrate can be inserted, and a base provided on the housing, the base forming a fixed portion fixed to the housing, extending from the fixed portion to the surface of the housing and connected to a lead plate of a rechargeable battery. A first contact provided with a contact portion extending from the fixed portion and provided with a contact end bent to be positioned in the substrate slit; and a fixed portion provided on the housing and the base fixed to the housing. A second contact extending from the fixing portion and having a contact end bent to be located in the substrate slit;

Is provided. And the operation of the present invention is
It is as follows. A lead plate extending from the rechargeable battery is welded to a welding portion provided on the first contact to electrically connect the rechargeable battery and the battery connector. At this time, since the welding portion is provided on the surface of the housing, the welding operation with the lead plate is easy. With the rechargeable battery and the battery connector connected, the battery connector is attached to the board so that the board to be connected is inserted into the board slit of the battery connector. Then, the second contact whose contact end is located in the substrate slit and the first contact whose contact end is located in the substrate slit are connected to the inserted substrate, and The rechargeable battery is electrically connected.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram showing an embodiment in which the embodiment is attached to an electronic device, FIG. 2 is a perspective explanatory diagram showing an embodiment of the present invention, and FIG. 3 is an explanatory diagram showing the embodiment. a) is the front, (b) is the plane,
(C) is a back surface, (d) is a right side surface, (e) is a cross section taken along the line AA, (f) is a cross section taken along the line BB, and FIG. 4 is a perspective explanatory view showing the second contact. 5 is a perspective explanatory view showing a first contact, FIG. 6 is an explanatory view showing another embodiment, (a) is a front view, (b) is a bottom face, and (c) is a cross section taken along line CC. .

Reference numeral 1 denotes a battery connector according to an embodiment of the present invention. The battery connector 1 is a connector for electrically connecting the power supply board PCB and the rechargeable battery BAT. In this embodiment, a case where the rechargeable battery BAT provided in the mobile phone is connected to the power supply board PCB will be described. However, the present invention can also be used for a device that incorporates a rechargeable battery BAT and connects the device body to a charger for charging, for example, other small electronic devices such as a portable information terminal. The power supply board PCB serves as a power input / output unit for connecting the rechargeable battery BAT to the electronic board of an electronic device incorporating the rechargeable battery BAT.
A contact portion PCB1 serving as a power input / output portion is provided on the surface of B. The rechargeable battery BAT has a lead plate BAT1 made of nickel material and serving as an electrode extending from the rechargeable battery main body.
Supplied from The shape and material of the rechargeable battery BAT differ depending on the electronic device used, but in this embodiment,
The lead plate BAT1 has a plate shape of a nickel material.

As shown in FIGS. 1 to 3, the battery connector 1 has a housing 2 having a rectangular parallelepiped shape as a whole.
And a second contact 3 connected to the power supply board PCB and a first contact 4 connected to the rechargeable battery BAT. The housing 2 is provided with a substrate slit 5 that is opened in one longitudinal side surface in the longitudinal direction. The board slit 5 has a width that allows the power supply board PCB to be inserted from the longitudinal side thereof, and
Opened to thickness. In addition, the power supply board PC is inserted into the board slit 5.
The surface located on the back of the power supply board PCB when B is inserted is
An opening is provided to the extent that the power supply board PCB does not separate, and a cover fixing portion 6 is provided around the opening. When the power supply board PCB is inserted from the board slit 5 and mounted on the main body housing 2, a cover 7 for pressing the power supply board PCB is hooked and fixed to the cover fixing portion 6. The cover 7 is formed of an elongate leaf spring that can be attached to the opening of the cover fixing portion 6.
It is formed so that it can be hooked on. By attaching the cover 7 to the cover fixing portion 6 in this manner, the power supply board PCB inserted into the housing 2 from the board slit 5 is
It is pressed toward the contact mounting portion 9 by the spring force of the cover 7, and can be maintained in an electrically connected state by being pressed against the second contact 3 and the first contact 4 mounted on the contact mounting portion 9.

A contact mounting portion 9 to which the second contact 3 and the first contact 4 are mounted is provided on the outer surface of the housing 2 opposite to the cover fixing portion 6.
The contact mounting portion 9 is formed on the surface of the housing 2 as a concave groove having the shape of the second contact 3 and the first contact 4, and a plurality of contact holes 10 are formed in the concave groove. In this embodiment, the contact mounting portions 9 are formed at five locations, two of the two ends being the contact mounting portions 9 of the first contact 4, and three intermediate locations being the mounting portions of the second contact 3. Various arrangements may be provided in accordance with the configuration of the electronic device to be mounted. Furthermore, the longitudinal end face of the housing 2 forms a spot welding surface 8.
The first contact 4 is attached to the spot welding surface 8.

The second contacts 3 are mounted on the contact mounting portions 9 of the plurality of contact mounting portions 9 provided on the housing 2 except for both ends. Therefore, the second contact 3 is formed according to the shape of the contact mounting portion 9 to be mounted. That is, as shown in FIG. 4, the second contact 3 is provided with a contact plate portion 11 which is a flat plate and is a fixed portion having the same shape as the concave groove of the contact attachment portion 9 provided on the housing 2. From one side, a contact piece 12 which is a contact end narrower than that side is extended. The contact piece 12 is provided such that the contact piece 12 is curved from the base end and the tip end faces the contact plate 11. The second contact 3 formed in this manner is such that the contact piece 12 is inserted into the housing 2 through the contact hole 10 of the contact mounting portion 9 provided in the housing 2.
1 is set in the concave groove of the contact mounting portion 9 and fixed to the housing 2. Therefore, the positioning and fixing of the second contact 3 to the contact mounting portion 9 are performed by fitting the second contact 3 into the concave groove of the contact mounting portion 9.

The first contacts 4 are mounted on the contact mounting portions 9 at both ends of the plurality of contact mounting portions 9 provided on the housing 2. Therefore, the first contact 4 is formed according to the shape of the contact mounting portion 9 to be mounted. That is, the first contact 4 is, as shown in FIG.
A plate portion 13 which is a plate-like body and is a fixed portion having the same shape as the concave groove of the contact mounting portion 9 is provided, and one end of the plate portion 13 is bent to form a welding surface 14 as a connection portion. The welding surface 14 is provided in the same shape as the spot welding surface 8 provided on the housing 2. Further, the welding surface 14 is provided with a rechargeable battery BAT.
A welding plate 18 made of the same kind of nickel material as the lead plate BAT1 extending from the welding plate 18 is fixed. The welding plate 18 is provided with a caulking hole 15 for caulking and fixing to the welding surface 14, and is caulked and fixed to a caulking protrusion 19 provided in advance on the welding surface 14. Thus, the welding surface 1
The first contact 4 having the welding plate 18 caulked and fixed to the lead plate 4 is a lead plate BA extending from the rechargeable battery BAT.
T1 is formed so as to be weldable by spot welding in a state where it is in contact with the welding plate 18. The first contact 4 has a contact piece 16 which is a contact end extending from a side facing the contact hole 10 when the first contact 4 is attached to the contact attachment portion 9. The contact piece 16 of the first contact 4 is also curved like the contact piece 12 of the second contact 3 and provided to face the plate portion 13. Further, the positioning and fixing of the first contact 4 to the contact mounting portion 9 are performed by fitting the plate portion 13 into the concave groove of the contact mounting portion 9. In this embodiment, the welding surface 14 of the first contact 4 is formed by caulking and fixing the welding plate 18 and is formed of the same kind of metal as the lead plate BAT1 to be welded and fixed, so that spot welding can be easily performed. If the lead plate BAT1 can be directly spot welded to 14, or can be fixed by a method other than welding,
The lead plate BAT1 may be directly fixed without providing the welding plate 18 on the welding surface 14.

Second contact 3 and first contact 4
The shape differs depending on the shape of the housing 2 and the contact portion PCB1 of the power supply board PCB inserted into the housing 2, and may be formed in required shapes. In this embodiment, the power supply board PCB and the battery connector 1
Is formed so that the electrical connection with the power supply board is maintained by the cover 7, but the power supply board PCB is formed from a rigid plate-like body,
Second contact 3, first contact 4 and power supply board PCB
May be formed such that the electrical connection with the contact portion PCB1 is maintained in a state of being attached to the slit 5.

The operation of the battery connector 1 formed as described above will be described below. The second in the housing 2
The lead plate BAT1, which is an electrode of the rechargeable battery BAT, is brought into contact with the welding surface 14 of the predetermined first contact 4 to be connected to the battery connector 1 in a state where the contact 3 and the first contact 4 are fixed, The lead plate BAT1 is spot-welded to the welding surface 14 to which the welding plate 18 is fixed by a spot welding machine (not shown). The spot-welded battery connector 1 is electrically connected to the rechargeable battery BAT. Next, the power supply board PCB is inserted into the board slit 5 with the second contact 3 and the first contact 4 fixed to the housing 2. Next, in order to fix the inserted power supply board PCB and maintain an electrical connection state between the contact piece 12 of the first contact 4 and the contact piece 16 of the first contact 4 and the contact portion PCB1 of the power supply board PCB, The cover 7 is attached to the cover fixing portion 6, and the cover 7 is fixed to the opening on the surface located on the back side of the power supply board PCB, and the power supply board PCB is pressed toward the contact pieces 12,16.

Then, the contact portion PCB1 of the power supply board PCB
Is the contact piece 12 of the second contact 3 and the first contact 4
Of the contact piece 16. Next, the rechargeable battery BAT is stored in a predetermined place of the electronic device, and the rechargeable battery BAT is stored.
The work of mounting the electronic device on the electronic device is completed.

In the above-described embodiment, the first contacts 4 connected to the lead plate BAT1 of the rechargeable battery BAT are provided at both ends of the housing 2. However, the connection with the lead plate BAT1 is not limited. Battery BAT
Depending on the shape of the electronic device to be mounted, the operation is not always performed at both ends of the housing 2. Therefore, as shown in FIG. BAT1
May be formed to be connected. That is, in the embodiment shown in FIG. 6, the housing 2 is divided into right and left at substantially the center,
The first contact 4 is fixed to one end and substantially the center of the housing 2. Further, the first contact 4 attached to the end portion is not attached with the welding surface 14 located at the end surface of the housing 2, but is extended so as to protrude from the housing 2 to form the welding surface 14. The welding surface 14 to be extended may be formed by fixing the welding plate 18 similarly to the above embodiment, or the welding surface 14 may be provided as it is depending on the method of fixing to the lead plate BAT1. Is also good. The housing 2 has a first fixed at the center.
A welding hole 17 for spot welding is formed at the same position as the welding surface 14 of the contact 4. The substrate slit 5 is
As shown in FIG. 6C, provided on the back surface,
Is provided in the peripheral portion of the substrate slit 5 provided on the back surface. Then, the power supply board PCB is inserted from the board slit 5, and after the power supply board PCB is inserted, the cover 7 is attached to the board slit 5. In addition, attachment of the second contact 3 and the like are the same as in the above-described embodiment.

When mounting the rechargeable battery BAT, the lead plate BAT1 to be connected to the first contact 4 provided at the center is brought into contact with the position of the welding surface 14 of the first contact 4, and the spot welding machine (shown in FIG. And spot welding. Also, the lead plate BAT1 to be connected can be connected to the first contact 4 attached to the end.
Is brought into contact with the position of the welding surface 14 and spot welding is performed in the same manner to make connection.

As described above, the connection between the battery connector 1 and the lead plate BAT1 is not necessarily limited to the housing 2
It does not need to be performed at both ends, and can be changed depending on the shape of the electronic device to be attached. In this embodiment, the battery connector 1 is connected by inserting the power supply board PCB. However, the same connection as described above can be made by inserting a board or the like which is not the power supply board PCB or a chip having an electronic circuit in place of the board. It can also be used as done.

[0023]

As described above, since the power supply board and the rechargeable battery can be connected by spot welding via the battery connector without directly connecting the rechargeable battery, the workability is improved without the need for an extra lead, and the rechargeable battery is further improved. No extra electrode lead is required, so the number of work steps can be reduced without the need for special insulation treatment, etc., and the connection between the rechargeable battery and the battery connector is improved, resulting in more reliable connection. It becomes possible.

Further, since the electrical contact point between the electronic device and the rechargeable battery can be made by the contact plate portion, it can be formed above the thin film-like contact point provided by etching on the substrate surface. It is possible to maintain more reliable contact for a long time without causing contact failure.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an embodiment in which an embodiment is attached to an electronic device.

FIG. 2 is a perspective explanatory view showing an embodiment.

3A and 3B are explanatory diagrams of the embodiment, wherein FIG. 3A is a front explanatory diagram, FIG. 3B is a plan explanatory diagram, FIG. 3C is a rear explanatory diagram with a cover removed, and FIG. Explanatory drawing, (e) is a cross-sectional view taken along the line AA with the cover removed, and (f) is a sectional view taken along the line B-A.
B line sectional view

FIG. 4 is an explanatory perspective view of a second contact.

FIG. 5 is an explanatory perspective view of a first contact.

FIG. 6 is an explanatory view showing another embodiment, and FIG.
Is a front view, (b) is a bottom view, and (c) is a cross-sectional view taken along line CC.

[Explanation of symbols]

 PCB power supply board PCB1 contact portion BAT rechargeable battery BAT1 lead plate 1 battery connector 2 housing 3 second contact 4 first contact 5 board slit 6 cover fixing portion 7 cover 8 spot welding surface 9 contact mounting portion 10 contact hole 11 contact plate portion 12 Contact piece 13 Plate portion 14 Welding surface 15 Caulking hole 16 Contact piece 17 Welding hole 18 Welding plate 19 Caulking protrusion

Claims (2)

[Claims] 1. A housing provided with a substrate slit into which a substrate can be inserted, and a base provided in the housing, the base forming a fixed portion fixed to the housing, and extending from the fixed portion to the surface of the housing, a lead plate of the rechargeable battery is provided. A first contact provided with a connecting portion to be connected, and a first contact extending from the fixed portion and having a contact end bent to be located in the substrate slit. 2. A housing provided with a substrate slit into which a substrate can be inserted, and a fixed portion provided in the housing, the base portion forming a fixed portion fixed to the housing. A first contact provided with a connecting portion to be connected, provided with a contact end extending from the fixed portion and bent to be positioned in the substrate slit, and a fixed portion provided on the housing and a base fixed to the housing; And a second contact extending from the fixing portion and having a contact end bent so as to be located in the substrate slit.