JPH0677156U - Coin cell holder - Google Patents

Abstract

(57) [Abstract] [Purpose] To use a coin-type battery without terminals that is easily available, does not require a thick holder as in the past, and has a structure that can be easily replaced. A coin-type battery holder for holding a coin-type battery without terminals, which has an insulating body 100
And the negative terminal 30 attached to the body 100
0, an insulating cover 200 detachably attached to the body 100, and a plus-side terminal 400 embedded in the cover 200. The body 100 has an opening 111 smaller than a coin-type battery. In the negative terminal 300, the negative electrode contact surface 310 that covers the opening 111 and the negative side connection portion 320 that extends from the negative electrode contact surface 310 are integrally formed, and the cover 200 is fitted to the body 100. Fitting claw 2
The positive side terminal 400 has a positive electrode contact surface and a positive side connecting portion 420 extending therefrom, which are integrally formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coin-type battery holder without terminals.

[0002]

[Prior art]

 Conventional coin-type batteries used in electronic devices such as IC cards include types with terminals and types without terminals. Coin-type batteries with terminals are often connected directly to the electrodes by spot welding. In such a coin type battery with a terminal, the tip of the terminal is directly attached to a printed circuit board or the like. On the other hand, a coin-type battery without terminals is designed to be attached to an electronic device by inserting it into a holder provided in the electronic device.

[0003]

[Problems to be solved by the device]

 However, the coin-type battery with terminals described above is difficult to purchase at a general store and is often directly attached to a printed circuit board or the like, so that it is difficult for the user to replace it. In addition, since the coin-type battery without terminals is easily available and can be easily attached to and detached from the holder, it can be easily replaced by the user himself, but since the holder is about 7 mm thick, it can be used for IC cards, etc. It was difficult to make it built in.

The present invention has been made in view of the above circumstances, and uses a coin type battery without terminals that is easily available, does not require a thick holder as in the past and is easy to replace. It is intended to provide a battery holder.

[0005]

[Means for Solving the Problems]

 A coin-type battery holder according to the present invention is a coin-type battery holder that holds a coin-type battery without terminals, and has an insulative body, a negative side terminal attached to the body, and the body. It is equipped with an insulative cover that can be removably attached and a positive side terminal embedded in this cover.The body has an opening smaller than a coin-type battery, and the negative side terminal is The negative electrode contact surface that covers the opening and the negative side connecting portion that extends from the negative electrode contact surface are integrally formed, and the cover has a fitting claw that fits into the body. The plus-side terminal is integrally formed with a plus-electrode contact surface and a plus-side connecting portion extending from this plus-electrode contact surface.

[0006]

【Example】

 FIG. 1 is a drawing of a body that constitutes a holder of a coin battery according to an embodiment of the present invention. FIG. 1A is a plan view, FIG. 1B is a rear view, and FIG. FIG. 2 is a side view, and FIG. 2 is a drawing of a negative side terminal that constitutes the holder of this coin-type battery. FIG. 3A is a plan view, FIG. 2B is a front view, and FIG. FIG. 4 is a plan view of a state in which the coin-type battery holder is attached, and FIG. 4 is a plan view of the positive side terminal that constitutes the holder of the coin-type battery, FIG. 4A is a plan view, FIG. FIG. 4A is a plan view of the cover that constitutes the holder of the coin-type battery, FIG. 6A is a plan view, FIG. 6B is a rear view, and FIG. 6 is a view showing how the cover is attached to the body. , (A) is a plan view showing the state where the engaging parts are combined, and (B) is a plan view with the cover attached to the body. FIG. 7, FIG. 7 is a cross-sectional view taken along the line I-I of FIG. 6B, FIG. 8 is a drawing of a plus-side terminal and a cover according to another embodiment, and FIG. FIG. 3B is a rear view of the plus terminal, and FIG. 3C is a plan view of the plus terminal.

The coin-type battery holder according to the present embodiment holds a coin-type battery without terminals, and has an insulative body 100, a negative side terminal 300 attached to the body 100, It has an insulating cover 200 that is detachably attached to the body 100, and a plus-side terminal 400 that is embedded in the cover 200. The electronic device (not shown) holds a coin-type battery. The coin-type battery is connected to the internal circuit by inserting it into the battery insertion port.

As shown in FIG. 1, the body 100 includes a battery holding portion 110 having a substantially circular opening 111, a terminal holding portion 120 provided at a tip side of the battery holding portion 110, and A lid part 130 provided on the rear end side of the battery holding part 110 and an engaging part 140 provided on both sides of the battery holding part 110 are integrally formed.

The battery holding portion 110 occupies most of the body 100, and the opening 111 is opened substantially at the center of the battery holding portion 110. The opening 111 is set to be slightly smaller than the outer diameter of the coin-type battery to be held, and the periphery of the opening 111 has a curved shape corresponding to the shape of the outer periphery of the coin-type battery as shown in FIG. It is formed as a surface 112. By forming the curved surface 112 around the opening 111, it is possible to prevent the coin-type battery from being erroneously inserted. Further, the battery holding portion 110 is formed with a holding notch 160 into which a holding claw 330 of the negative side terminal 300 described later is inserted and held. Further, a part of the opening 111 is cut toward the holding cut 160.

Further, on both sides (the upper and lower sides correspond to both sides in FIG. 1) of the battery holding portion 110, first and second locking portions 150 A for locking a cover 200 described later, 150B is formed. The first locking portion 150A is formed on the upper left side of the battery holding portion 110, has a substantially L-shaped opening 151A, and a portion that is continuous with the opening 151A, and has a thin portion 152A whose back side is cut. And have. Further, the second locking portion 150B is formed on the lower left side of the battery holding portion 110, and a thin portion 151B whose back surface side is shaved is formed.

On the other hand, the terminal holding portion 120 holds the negative side connecting portion 320 of the negative side terminal 300 attached to the body 100 and the positive side connecting portion 420 of the positive side terminal 400 embedded in the cover 200. To do. The terminal holding part 120 is provided with a support base 121 for supporting the negative side connecting part 320. The support base 121 is formed at a position where it is connected to the cut portion of the opening 111.

That is, the minus-side connecting portion 320 is held by being mounted on the support base portion 121, and the plus-side connecting portion 420 is held by being placed on the surface of the terminal holding portion 120.

The lid 130 closes a battery insertion port of an electronic device (not shown). Two locking holes 131 are formed in the central portion of the lid 130. The locking hole 131 is a portion into which a locking claw 340 of the negative terminal 300 described later is inserted and locked. Further, an insertion hole 132 into which a convex portion 230 of the cover 200 described later is inserted is formed between the two locking holes 131. Further, the engaging portion 140 engages with an engaging portion (not shown) formed inside the battery insertion opening of the electronic device, and an engaging claw 141 is formed at the tip.

The negative side terminal 300 is attached to the body 100 configured as described above. The negative side terminal 300 has a circular negative electrode contact surface 310, a negative side connecting portion 320 extending from the negative electrode contact surface 310, and both sides of the middle side of the negative side connecting portion 320. A pair of holding claws 330 provided and a pair of locking claws 340 extending from the negative electrode contact surface 310 are formed integrally on the opposite side of the negative side connecting portion 320.

Three contacts 350 are formed on the negative electrode contact surface 310. The center of the contactor 350 is set shorter than the left and right side contacts. Furthermore, the contactor 350 is bent to the front surface side.

Further, an oval-shaped raised portion 321 is formed at the tip of the minus side connecting portion 320. Further, the negative side connecting portion 320 is bent and formed in a crank shape in the middle abdomen. Therefore, the tip of the minus-side connecting portion 320 is located one step higher than the minus electrode contact surface 310. On the other hand, the pair of holding claws 330 are bent and formed at the bent portion of the minus side connecting portion 320 so as to stand up against the minus side connecting portion 320.

The negative terminal 300 thus configured is attached to the body 100 by inserting the locking claw 340 into the locking hole 131 and the holding claw 330 into the holding notch 160. As shown in FIG. 7, the negative electrode contact surface 310 of the negative terminal 300 attached to the body 100 faces the opening 111 and is flush with the bottom surface of the body 100.

On the other hand, the plus side terminal 400 is formed by punching out a metal plate having conductivity, and as shown in FIG. 4, it has a substantially square plus electrode contact surface 410 that occupies most of it and this plus electrode contact surface 410. A plus-side connecting portion 420 extending from the plus-electrode contact surface 410, a tongue piece 430 protruding from an edge of the plus-electrode contact surface 410, and a side facing the side where the plus-side connecting portion 420 is formed. The extension piece 440 extended from the above is integrally formed. An elliptical raised portion 421 is formed on the tip side of the plus side connecting portion 420.

The positive electrode contact surface 410 has a plurality of openings 411. The opening 411 serves as a flow path for synthetic resin when the cover 200 is insert-molded.

The tongue piece 430 protruding from the edge of the plus electrode contact surface 410 and the extending piece 440 of the positive terminal 400 configured in this manner are embedded in the cover 200. The cover 200 formed by insert-molding the plus-side terminal 400 has a contact surface exposed portion 210 having a substantially square shape in which the plus electrode contact surface 410 is exposed, and a protruding portion 220 in which a part of the plus-side connecting portion 420 is embedded. A protrusion 230 extending from the side opposite to the side where the protrusion 220 is formed, and two first and second locking portions 150A and 150B of the body 100. The second locking claws 240A and 240B are integrally molded.

The convex portion 230 is a portion that is inserted into the insertion hole 132 of the body 100. Further, the first locking claw 240A is a portion projecting downward from the lower left corner of the contact surface attachment portion 210 in FIG. 5 (A), and the second locking claw 240B is the upper left corner in FIG. 5 (A). Is a portion that protrudes from the upper right side. The first locking claw 240A has a tip formed as a thin portion 241A. On the other hand, the tip of the second locking claw 240B is formed as a thin portion 241B.

A method of using the coin-type battery holder configured as described above will be described. First, the coin battery is inserted into the opening 111 of the body 100. Then, the negative electrode of the coin type battery is placed on the contact 350 of the negative terminal 300. In this state, the cover 200 is placed on the body 100, the cover 200 is pressed against the body 100, and the first and second locking claws 240A, 240B of the cover 200 are locked by the first and second locking of the body 100. Match the parts 150A and 150B. In this state, the cover 200 is slid to the lid 130 side.

Then, the first and second locking claws 240A and 240B are locked to the first and second locking portions 150A and 150B, and the convex portion 230 of the cover 200 is fixed to the lid portion 130 of the body 100. It is inserted into the insertion hole 132. As a result, the coin battery is held by the coin battery holder. The coin-type battery holder is inserted into the battery insertion port of the electronic device to connect the coin-type battery to the internal circuit.

When the coin-type battery is put into the opening 111 of the body 100 and the positive electrode is turned up, the curved surface 112 around the opening 111 does not match the shape of the outer peripheral edge of the coin-type battery. Incorrect insertion can be prevented.

Since the coin-type battery is pressed against the cover 200 by the contact 350 of the negative side terminal 300, when the cover 200 is removed from the body 100, the coin-type battery pops out of the body 100 naturally. The exchange work can be done very easily.

In the above-described embodiment, the positive terminal 400 is described as being embedded in the cover 200, but the present invention is not limited to this. For example, as shown in FIG. 8A, a tongue piece 450 is formed on four sides of the positive electrode contact surface of the positive side terminal 400, while an opening 211 corresponding to the tongue piece 450 is formed in the cover 200. It can also be configured by inserting the tongue piece 450 into the opening 211 and bending it. In FIG. 8, reference numeral 212 indicates a portion into which the bent tongue piece 450 is inserted. Further, when the plus side terminal 400 is attached to the cover 200 in this way, it is necessary to form the strip-shaped piece 460 in the middle abdomen of the plus side connecting portion 420. The strip-shaped piece 460 is for fixing the plus-side connecting portion 420 to the cover 200.

[0027]

[Effect of device]

 A coin-type battery holder according to the present invention is a coin-type battery holder that holds a coin-type battery without terminals, and has an insulative body, a negative side terminal attached to the body, and the body. It is equipped with an insulative cover that can be removably attached and a positive side terminal embedded in this cover, and the body has an opening smaller than a coin-type battery, and the negative side. The terminal is integrally formed with a negative electrode contact surface that covers the above-mentioned opening and a negative side connecting portion extending from this negative electrode contact surface, and the cover has a fitting claw that fits into the body. The positive-side terminal has a positive-electrode contact surface and a positive-side connecting portion extending from the positive-electrode contact surface, which are integrally formed. Therefore, it is possible to use a coin-type battery without terminals, which is easily accessible, does not require a thick holder as in the conventional case, and can be easily replaced.

[Brief description of drawings]

1A and 1B are drawings of a body that constitutes a holder of a coin-type battery according to an embodiment of the present invention, in which FIG. 1A is a plan view, FIG. 1B is a rear view, and FIG. Is a side view.

2A and 2B are drawings of a minus-side terminal that constitutes a holder of this coin-type battery, in which FIG. 2A is a plan view and FIG. 2B is a front view.

FIG. 3 is a plan view showing a state in which a negative terminal is attached to the body.

4A and 4B are drawings of a plus-side terminal that constitutes the holder of this coin-type battery, in which FIG. 4A is a plan view and FIG.
Is a front view.

5A and 5B are drawings of a cover constituting a holder of this coin-type battery, FIG. 5A being a plan view and FIG. 5B being a rear view.

6A and 6B are views showing the attachment of the cover to the body, wherein FIG. 6A is a plan view showing a state in which the respective locking portions are combined, and FIG. 6B shows a state in which the cover is attached to the body. It is a top view.

FIG. 7 is a sectional view taken along line I-I of FIG. 6 (B).

8A and 8B are drawings of a plus-side terminal and a cover according to another embodiment, wherein FIG. 8A is a plan view of the cover and FIG.
Is a back view of the plus-side terminal, and FIG. 7C is a plan view of the plus-side terminal.

[Explanation of symbols]

 100 Body 111 Opening 200 Cover 300 Negative side terminal 310 Negative electrode contact surface 320 Negative side connecting part 400 Positive side terminal

Claims (4)

[Scope of utility model registration request] 1. A coin-type battery holder for holding a coin-type battery without terminals, the body having an insulating property,
It has a minus side terminal attached to this body, an insulating cover detachably attached to the body, and a plus side terminal embedded in this cover, and the body is smaller than a coin battery. An opening is opened, the negative side terminal is formed integrally with a negative electrode contact surface covering the opening and a negative side connecting portion extending from the negative electrode contact surface, and the cover is a body. A coin having a fitting claw that fits into the positive terminal and a positive side terminal integrally formed with a positive electrode contact surface and a positive side connecting portion extending from the positive electrode contact surface. Type battery holder. 2. A coin-type battery holder for holding a coin-type battery without terminals, the body having an insulating property,
The body includes a minus side terminal attached to the body, an insulating cover detachably attached to the body, and a plus side terminal attached to the cover, and the body has an opening smaller than a coin-type battery. The negative side terminal is integrally formed with a negative electrode contact surface covering the opening and a negative side connecting portion extending from the negative electrode contact surface, and the cover is attached to the body. The coin-shaped coin has a fitting claw for fitting, and the positive terminal has a positive electrode contact surface and a positive side connecting portion extending from the positive electrode contact surface, which are integrally formed. Battery holder. 3. The holder of the coin type battery according to claim 1, wherein the negative side terminal has a negative electrode contact surface flush with the bottom surface of the body when attached to the body. 4. The periphery of the opening is curved corresponding to the shape of the outer periphery of the coin battery.
Alternatively, the coin-type battery holder described in 2.