CN216980803U - Button cell external connection device, button cell with same and application product - Google Patents
Button cell external connection device, button cell with same and application product Download PDFInfo
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- CN216980803U CN216980803U CN202122654594.6U CN202122654594U CN216980803U CN 216980803 U CN216980803 U CN 216980803U CN 202122654594 U CN202122654594 U CN 202122654594U CN 216980803 U CN216980803 U CN 216980803U
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Abstract
The utility model relates to the field of connector products, in particular to a button cell external connection device, a button cell with the device and an application product, wherein the external connection device comprises: the battery comprises a button cell, an impact-resistant flexible piece, a positive connecting piece, a negative connecting piece, a positive extension arm and a negative extension arm; the lower surface of the positive electrode extension arm is electrically connected with the positive electrode of the button cell; the lower surface of one end of the negative electrode extension arm is electrically connected with a negative electrode of the button battery, and one end of the leading-out part of the negative electrode extension arm extends to the positive electrode end face of the button battery along the side wall of the button battery; the upper surface of the anode extension arm is electrically connected with the lower surface of the anode connecting sheet through an impact-resistant flexible piece; the upper surface of one end of the leading-out part of the cathode extension arm is electrically connected with the lower surface of the cathode connecting sheet. The external connecting device of the utility model occupies small space, can relieve impact force through deformation when being impacted so as to protect welding spots, and is reliable in connection.
Description
Technical Field
The utility model relates to the field of connector products, in particular to a button cell external connection device, a button cell with the device and an application product.
Background
As is well known, electronic devices in the electronic industry tend to be developed in the direction of small volume, low power consumption, and small instantaneous current, and these electronic devices are generally powered by button cells. The hard metal sheet is generally made of stainless steel materials and is formed by stamping and bending, the hard metal sheet has no good capability of resisting falling impact in the using process and can not effectively relieve welding spots, the electronic wire harness is generally formed by stranding a plurality of tinned copper wires and welding the metal sheet (formed by punching a nickel sheet), and the connecting mode is large in occupied space and is not suitable for being used by small-size electronic equipment.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a device for connecting a button cell externally, the button cell with the device and an application product, aiming at solving the problems that the drop impact resistance is poor, welding spots cannot be effectively relieved and the occupied space is large when the button cell is connected externally, the connecting device occupies a small space, and the impact force can be relieved through the deformation of parts when the button cell is impacted to protect the welding spots so that the connection is more reliable.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a device suitable for external connection of a button cell, comprising: the battery comprises a button cell, an impact-resistant flexible piece, a positive connecting piece, a negative connecting piece, a positive extension arm and a negative extension arm; the positive electrode extension arm is arranged on the positive electrode end face of the button battery, and the lower surface of the positive electrode extension arm is electrically connected with the positive electrode of the button battery; the lower surface of one end of the negative electrode extension arm is electrically connected with a negative electrode of the button battery, and one end of the leading-out part of the negative electrode extension arm extends to the positive electrode end face of the button battery along the side wall of the button battery; the upper surface of the anode extension arm is electrically connected with the lower surface of the anode connecting sheet through an impact-resistant flexible piece; the upper surface of one end of the leading-out part of the negative electrode extension arm is electrically connected with the lower surface of the negative electrode connecting sheet; and the impact-resistant flexible piece is bonded and fixed with the surface of the button cell. The outer connecting device occupies a small space, and impact force can be relieved through deformation of the impact-resistant flexible piece when the outer connecting device is impacted, so that welding spots are protected, and connection is more reliable.
Further, specifically, in order to protect each welding point by alleviating the impact force through the deformation of the part when the part is impacted, the welding method further comprises the following steps: the upper surface of one end of the leading-out part of the negative electrode extension arm is electrically connected with the lower surface of the negative electrode connecting sheet through the shock-resistant flexible piece.
Further, specifically, for further effectively reducing the volume and softness of the connecting device, the impact-resistant flexible part is a flexible circuit board, the flexible circuit board is arranged on the positive end face of the button cell, the flexible circuit board comprises a flexible circuit board body, a positive electrode pad I, a negative electrode pad I, a positive electrode pad II and a negative electrode pad II, the positive electrode pad I and the negative electrode pad I are arranged on the lower surface of the flexible circuit board body, the positive electrode pad II and the negative electrode pad II are arranged on the upper surface of the flexible circuit board body, the positive electrode pad I is electrically connected with the positive electrode pad II through an inner layer circuit of the flexible circuit board body, and the negative electrode pad I is electrically connected with the negative electrode pad II through an inner layer circuit of the flexible circuit board body.
Further, specifically, the positive connecting piece comprises a first positive connecting piece and a second positive connecting piece, and the negative connecting piece comprises a first negative connecting piece and a second negative connecting piece; the upper surface of the first positive connecting sheet is connected with the first positive bonding pad in a soldering manner, and the upper surface of the first negative connecting sheet is connected with the first negative bonding pad in a soldering manner; the lower surface of the first positive connecting sheet is electrically connected with the upper surface of the positive extension arm, and the lower surface of the first negative connecting sheet is electrically connected with the upper surface of the negative extension arm; the lower surface of the second positive connecting sheet is connected with the second positive bonding pad in a soldering manner, and the lower surface of the second negative connecting sheet is connected with the second negative bonding pad in a soldering manner.
Further, specifically, in order to connect the positive and negative electrode connecting sheets with the positive and negative electrode extending arms, the lower surface of the first positive electrode connecting sheet is connected with the positive electrode extending arm by laser spot welding; the lower surface of the first negative electrode connecting piece is connected with the negative electrode extension arm in a laser spot welding mode.
Further, specifically, in order to fix the connecting device with the button cell, the flexible circuit board body in the peripheral area of the first positive electrode bonding pad and the first negative electrode bonding pad is bonded to the positive electrode end face of the button cell through back glue.
Further, specifically, the impact-resistant flexible member is an elongated metal sheet bent in an arc shape, one end of the elongated metal sheet is integrally formed with the positive electrode extension arm, and the upper surface of the other end of the elongated metal sheet is electrically connected with the lower surface of the positive electrode connecting sheet. The total length of the metal sheet is increased in an arc bending mode, so that one end of the metal sheet is easier to deform in the Z-axis direction when stressed, and a welding spot is effectively relieved.
Further, in order to fix the connecting device better, one end of the slender metal sheet is fixed at the center of the positive electrode of the button cell, and the lower surface of the other end of the slender metal sheet is fixedly connected with the end face of the positive electrode of the button cell.
A button battery is provided with the button battery external connection device.
An application product of the button cell comprises the button cell.
The button battery external connection device has the advantages that when the button battery external connection device is impacted, impact force can be relieved through deformation of the impact-resistant flexible piece, welding spots are protected, connection is more reliable, the connection device is fixed on the surface of the button battery, the structure is compact, the occupied space is small, the positive connecting piece and the negative connecting piece which are arranged on the connection device can be connected with a battery application product through better soldering tin, electronic products of the button battery using the external connection device can be connected with the battery application product through the better soldering tin, and bad phenomena of insufficient soldering, poor contact and the like are avoided.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a flexible circuit board structure.
Fig. 3 is another schematic structural diagram of the first embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
In the figure, 1, a button cell, 2, an impact-resistant flexible part 200, a flexible circuit board 201, a first via hole 202, a second via hole 203, a first metal wire 204, a second metal wire 210, an arc-shaped bent slender metal sheet 3, a positive connecting sheet 31, a first positive connecting sheet 32, a second positive connecting sheet 4, a negative connecting sheet 41, a first negative connecting sheet 42, a second negative connecting sheet 5, a positive extending arm 6 and a negative extending arm.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, which is a first embodiment of the present invention, an external connection device for a button cell includes: the button cell comprises a button cell 1, an impact-resistant flexible piece 2, a positive connecting piece 3, a negative connecting piece 4, a positive extending arm 5 and a negative extending arm 6. Specifically, the middle boss of the upper surface of the button cell 1 is the anode of the button cell 1, and the sidewall of the button cell 1 and the lower surface of the button cell 1 are the cathode of the button cell 1. The positive electrode extension arm 5 is arranged on the positive electrode end face of the button battery 1, and the lower surface of the positive electrode extension arm 5 is electrically connected with the positive electrode of the button battery 1; the lower surface of one end of the negative electrode extension arm 6 is electrically connected with a negative electrode of the button cell 1, and one end of the leading-out part of the negative electrode extension arm 6 extends to the positive electrode end face of the button cell 1 along the side wall of the button cell 1; the upper surface of the anode extension arm 5 is electrically connected with the lower surface of the anode connecting sheet 3 through the shock-resistant flexible piece 2; the upper surface of one end of the leading-out part of the negative electrode extension arm 6 is electrically connected with the lower surface of the negative electrode connecting sheet 4 through the shock-resistant flexible piece 2.
In the first embodiment of the utility model, the impact-resistant flexible part 2 is a flexible circuit board 200, the flexible circuit board 200 is arranged on the positive end face of the button battery 1, the flexible circuit board 200 comprises a flexible circuit board body, a positive electrode pad I, a negative electrode pad I, a positive electrode pad II and a negative electrode pad II, the positive electrode pad I and the negative electrode pad I are arranged on the lower surface of the flexible circuit board body, the positive electrode pad II and the negative electrode pad II are arranged on the upper surface of the flexible circuit board body, the positive electrode pad I is electrically connected with the positive electrode pad II through an inner layer line of the flexible circuit board body, and the negative electrode pad I is electrically connected with the negative electrode pad II through the inner layer line of the flexible circuit board body.
Specifically, as shown in fig. 2, the upper surface of the flexible circuit board body further includes a first metal trace 203 and a second metal trace 204, the upper surface wiring layer and the lower surface wiring layer of the flexible circuit board body are electrically connected through a via hole, a first welding via 201 is provided at the center of the first positive pad, the corresponding second metal trace 203 of the second positive pad, which passes through the upper surface, is electrically connected with the first via 201 of the first positive pad, a second welding via 202 is provided at the center of the first negative pad, and the corresponding second metal trace 204 of the second negative pad, which passes through the upper surface, is electrically connected with the second via 202 of the first negative pad. In some embodiments of the present invention, the first metal trace 203 and the second metal trace 204 may also be disposed on the lower surface of the flexible circuit board body, and the second positive pad and the second negative pad are connected through a via hole, so as to electrically connect the upper surface wiring layer and the lower surface wiring layer of the flexible circuit board body.
In the embodiment of the utility model, the first positive electrode bonding pad is connected with the first positive electrode extension arm in a laser spot welding mode, the first negative electrode bonding pad is connected with the second negative electrode extension arm in a laser spot welding mode, the lower surface of the positive electrode connecting piece 3 is connected with the second positive electrode bonding pad in a soldering mode, the lower surface of the negative electrode connecting piece 4 is connected with the second negative electrode bonding pad in a soldering mode, the upper surface of the positive electrode connecting piece 3 is connected with the positive electrode input end of a battery application product in a soldering mode, and the upper surface of the negative electrode connecting piece 4 is connected with the negative electrode input end of the battery application product in a soldering mode.
In the first embodiment of the present invention, in order to better fixedly connect the first positive electrode bonding pad and the first positive electrode extension arm and the first negative electrode bonding pad and the first negative electrode extension arm, as shown in fig. 3, the positive electrode connecting piece 3 further includes a first positive electrode connecting piece 31 and a second positive electrode connecting piece 32, and the negative electrode connecting piece 4 includes a first negative electrode connecting piece 41 and a second negative electrode connecting piece 42; the upper surface of the first positive connecting piece 31 is connected with the first positive electrode pad in a soldering manner, and the upper surface of the first negative connecting piece 41 is connected with the first negative electrode pad in a soldering manner; the lower surface of the first positive connecting piece 31 is electrically connected with the upper surface of the positive extension arm 5, and the lower surface of the first negative connecting piece 41 is electrically connected with the upper surface of the negative extension arm 6; the lower surface of the second positive connecting sheet 32 is connected with the second positive pad in a soldering manner, the lower surface of the second negative connecting sheet 42 is connected with the second negative pad in a soldering manner, the upper surface of the second positive connecting sheet 32 is connected with the positive input end of a battery application product in a soldering manner, and the upper surface of the second negative connecting sheet 42 is connected with the negative input end of the battery application product in a soldering manner.
In the first embodiment of the utility model, the first positive connecting sheet 31, the second positive connecting sheet 32, the first negative connecting sheet 41, the second negative connecting sheet 42, the positive electrode extension arm 5 and the negative electrode extension arm 6 are made of stainless steel nickel-plated metal sheets or nickel sheets, one end of the positive electrode extension arm is arranged at the center of the positive electrode of the button cell, the lower surface of one end of the positive electrode extension arm is connected with the positive electrode of the button cell through laser spot welding, and the upper surface of the other end of the positive electrode extension arm is connected with the lower surface of the first positive connecting sheet 31 through laser spot welding; one end of the negative electrode extension arm is arranged at the negative electrode of the button battery, the lower surface of one end of the negative electrode extension arm 6 is connected with the negative electrode of the button battery 1 through laser spot welding, one end of the leading-out part of the negative electrode extension arm 6 also comprises a bending part, the bending part is arranged on the positive electrode end face of the button battery along the side wall of the button battery, and a metal sheet of the leading-out part of the negative electrode extension arm 6 is arranged on the positive electrode end face of the button battery 1; on the positive end face of the button cell 1, the upper surface of one end of the leading-out part of the negative electrode extension arm 6 is connected with the lower surface of the first negative electrode connecting sheet 41 through laser spot welding.
In the second embodiment of the utility model, the flexible circuit board body can be a circular circuit board, the interior of the circular circuit board can be arranged in a hollow manner, the flexible circuit board bodies in the peripheral areas of the first positive electrode pad and the first negative electrode pad are bonded on the positive electrode end face of the button cell 1 through back glue, and the flexible circuit board bodies can deform in the Z-axis direction to reduce stress when impacted, so that the impact force is relieved, and welding spots are protected.
As shown in fig. 4, the second embodiment of the present invention is different from the first embodiment in that the impact-resistant flexible member 2 is an arc-shaped bent elongated metal sheet 210, one end of the elongated metal sheet 210 is integrally formed with the positive electrode extension arm 5, one end of the elongated metal sheet 210 is fixed at the center of the positive electrode of the button cell by laser spot welding, the lower surface of the other end of the elongated metal sheet 210 is electrically connected to the positive electrode end surface of the button cell by laser spot welding, and the elongated metal sheet is fixed at the positive electrode end surface of the button cell by laser spot welding of the two ends of the elongated metal sheet because the metal sheet can maintain a fixed shape.
In the second embodiment of the utility model, the upper surface of the other end of the elongated metal sheet 210 is electrically connected with the lower surface of the positive connecting sheet 3 by laser spot welding, the lower surface of one end of the negative extension arm 6 is electrically connected with the negative electrode of the button cell 1 by laser spot welding, one end of the leading-out part of the negative extension arm 6 further comprises a bending part, the bending part is arranged on the positive end face of the button cell 1 along the side wall of the button cell, the metal sheet of the leading-out part of the negative extension arm is arranged on the positive end face of the button cell 1, and on the surface of the positive electrode of the button cell 1, the upper surface of one end of the leading-out part of the negative extension arm 6 is connected with the lower surface of the first negative connecting sheet 41 by laser spot welding. The upper surface of the positive connecting sheet 3 is connected with the positive input end of the battery application product by soldering tin, and the upper surface of the negative connecting sheet 4 is connected with the negative input end of the battery application product by soldering tin.
In the second embodiment of the utility model, the total length of the metal sheet is increased in an arc bending mode, and the metal sheet is a stainless steel sheet, so that one end of the metal sheet is easier to deform in the Z-axis direction when being stressed, and a welding spot is effectively relieved.
A button battery is provided with the button battery external connection device.
An application product of the button cell comprises the button cell, and the application product is an electronic product and other equipment.
According to the device for external connection of the button battery, provided by the utility model, when the device is impacted, the impact force can be relieved through the deformation of the impact-resistant flexible piece, so that a welding spot is protected, and the connection is more reliable; the connecting device is fixed on the surface of the button cell, so that the structure is compact, and the occupied space is small; the connecting device is provided with the positive and negative connecting pieces which can be connected with the battery application product through better soldering tin, the electronic product of the button battery using the external connecting device can be connected with the battery application product through the positive and negative connecting pieces through the better soldering tin, and bad phenomena such as insufficient soldering, poor contact and the like are avoided.
In light of the foregoing description of the preferred embodiments of the present invention, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a device of button cell external connection which characterized in that: the method comprises the following steps:
the button cell comprises a button cell (1), an impact-resistant flexible piece (2), a positive connecting piece (3), a negative connecting piece (4), a positive extension arm (5) and a negative extension arm (6);
the positive electrode extension arm (5) is arranged on the positive electrode end face of the button battery (1), and the lower surface of the positive electrode extension arm (5) is electrically connected with a positive electrode of the button battery (1);
the lower surface of one end of the negative electrode extension arm (6) is electrically connected with the negative electrode of the button cell (1), and one end of the leading-out part of the negative electrode extension arm (6) is connected to the positive electrode end face of the button cell (1) along the side wall of the button cell (1);
the upper surface of the anode extension arm (5) is electrically connected with the lower surface of the anode connecting sheet (3) through an impact-resistant flexible piece (2); the upper surface of one end of the leading-out part of the negative electrode extension arm (6) is electrically connected with the lower surface of the negative electrode connecting sheet (4);
the impact-resistant flexible part (2) is fixedly connected with the surface of the button battery (1).
2. The button cell external connection device according to claim 1, wherein: further comprising: the upper surface of one end of the leading-out part of the negative electrode extension arm (6) is electrically connected with the lower surface of the negative electrode connecting sheet (4) through the shock-resistant flexible piece (2).
3. The button cell external connection device according to claim 2, wherein: the flexible piece (2) that shocks resistance is flexible circuit board (200), flexible circuit board (200) are arranged in on the anodal terminal surface of button cell (1), flexible circuit board (200) include flexible circuit board body, anodal pad one, negative pole pad one, anodal pad two and negative pole pad two, anodal pad one and negative pole pad one set up the lower surface of flexible circuit board body, anodal pad two with negative pole pad two sets up the upper surface of flexible circuit board body, anodal pad one passes through the inlayer circuit of flexible circuit board body with two electricity of anodal pad are connected, negative pole pad one passes through the inlayer circuit of flexible circuit board body with two electricity of negative pole pad are connected.
4. The button cell external connection device according to claim 3, wherein: the positive connecting piece (3) comprises a first positive connecting piece (31) and a second positive connecting piece (32), and the negative connecting piece (4) comprises a first negative connecting piece (41) and a second negative connecting piece (42);
the upper surface of the first positive connecting sheet (31) is connected with the first positive bonding pad in a soldering manner, and the upper surface of the first negative connecting sheet (41) is connected with the first negative bonding pad in a soldering manner; the lower surface of the first positive connecting piece (31) is electrically connected with the upper surface of the positive extension arm (5), and the lower surface of the first negative connecting piece (41) is electrically connected with the upper surface of the negative extension arm (6);
the lower surface of the second positive connecting sheet (32) is connected with the second positive welding pad in a soldering manner, and the lower surface of the second negative connecting sheet (42) is connected with the second negative welding pad in a soldering manner.
5. The button cell external connection device according to claim 4, wherein: the lower surface of the first positive connecting piece (31) is connected with the positive extending arm (5) through laser spot welding; the lower surface of the first negative electrode connecting piece (41) is connected with the negative electrode extension arm (6) in a laser spot welding mode.
6. A device for external connection of button cells according to claim 3, characterized in that: the flexible circuit board body in the peripheral area of the first positive electrode bonding pad and the first negative electrode bonding pad is bonded to the positive electrode end face of the button battery (1) through back glue.
7. The button cell external connection device according to claim 1, wherein: the shock-resistant flexible part (2) is an arc-shaped bent slender metal sheet (210), one end of the slender metal sheet (210) and the anode extension arm (5) are integrally formed, and the upper surface of the other end of the slender metal sheet (210) is electrically connected with the anode connecting sheet (3).
8. The button cell external connection device according to claim 7, wherein: one end of the slender metal sheet (210) is fixed at the center of the anode of the button cell (1), and the lower surface of the other end of the slender metal sheet (210) is fixedly connected with the anode end face of the button cell (1).
9. A button cell is characterized in that: a device for external connection of button cells according to any of claims 1 to 8 is installed.
10. An application product of a button cell is characterized in that: the application product comprises a button cell according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122654594.6U CN216980803U (en) | 2021-11-02 | 2021-11-02 | Button cell external connection device, button cell with same and application product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122654594.6U CN216980803U (en) | 2021-11-02 | 2021-11-02 | Button cell external connection device, button cell with same and application product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216980803U true CN216980803U (en) | 2022-07-15 |
Family
ID=82342995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122654594.6U Active CN216980803U (en) | 2021-11-02 | 2021-11-02 | Button cell external connection device, button cell with same and application product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216980803U (en) |
-
2021
- 2021-11-02 CN CN202122654594.6U patent/CN216980803U/en active Active
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