CN214850589U - Lithium cell group charge-discharge protection shield - Google Patents
Lithium cell group charge-discharge protection shield Download PDFInfo
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- CN214850589U CN214850589U CN202121495522.5U CN202121495522U CN214850589U CN 214850589 U CN214850589 U CN 214850589U CN 202121495522 U CN202121495522 U CN 202121495522U CN 214850589 U CN214850589 U CN 214850589U
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Abstract
The utility model relates to the technical field of lithium batteries, and discloses a lithium battery pack charging and discharging protection plate, which comprises a protection plate body, wherein the upper surface of the protection plate body is provided with a first supporting plate, the right side of the first supporting plate is provided with a second supporting plate, the upper surface of the protection plate body is provided with a group of circuit plates, a copper heating plate is arranged above the circuit plates, the upper surface of the copper heating plate is provided with a heat dissipation groove, the inside of the copper heating plate is provided with a heat conduction device, the design of the first supporting plate and the second supporting plate can ensure that the installation between the protection plate body and the copper heating plate is more stable, the contact density between the copper heating plate and the air can be increased by the design of the heat dissipation groove, thereby further enhancing the heat dissipation effect, and the design of the heat conduction device can ensure that a silica gel rod can adapt to circuit plates with different heights and shapes, the mutual matching of the reset spring, the limiting groove and the lug can prevent the heat-conducting silica gel rod from sliding off from the limiting groove.
Description
Technical Field
The utility model relates to a lithium cell technical field specifically is a lithium cell group charge-discharge protection shield.
Background
The lithium battery protection board is used for charging and discharging protection of the series lithium battery pack, the voltage difference between the single batteries can be guaranteed to be smaller than a set value when the battery pack is fully charged, the single batteries of the battery pack are uniformly charged, the charging effect under the series charging mode is effectively improved, the overvoltage, undervoltage, overcurrent, short circuit and overtemperature states of the single batteries in the battery pack are detected, the service life of the battery is protected and prolonged, and the undervoltage protection enables each single battery to avoid damage of the battery due to overdischarge when the battery pack is used for discharging.
However, the heat conducting measures taken by the existing protection plate cannot be adapted to the respective plates of the heat conducting plate, and the heat conducting effect of the existing protection plate is not very good. Accordingly, a lithium battery pack charging and discharging protection plate is provided by those skilled in the art to solve the problems set forth in the above background art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lithium cell group charge-discharge protection board to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a lithium cell group charge-discharge protection shield, includes the protection shield body, the upper surface of protection shield body is provided with first backup pad, the right side of first backup pad is provided with the second backup pad, the upper surface of protection shield body is provided with a set of circuit plate piece, the top of circuit plate piece is provided with the copper heating panel, the radiating groove has been seted up to the upper surface of copper heating panel, the inside of copper heating panel is provided with heat-transfer device.
As a further aspect of the present invention: the heat conduction device comprises a mounting groove, a reset spring, a heat conduction silica gel rod, a limiting groove and a lug, the mounting groove is formed in the copper heat dissipation plate, the reset spring is fixedly connected to the inside of the mounting groove, the lower end of the reset spring is fixedly connected to the heat conduction silica gel rod, the lug is mounted on the left side wall and the right side wall of the heat conduction silica gel rod, the limiting groove is formed in the left side and the right side of the heat conduction silica gel rod, the heat conduction silica gel rod can adapt to circuit boards with different heights and shapes, and the practicability is high.
As a further aspect of the present invention: the first supporting plate is arranged at the right edge of the protective plate body, the second supporting plate is arranged at the left edge of the protective plate body, and the first supporting plate and the second supporting plate are symmetrically distributed, so that the supporting plates can be more stable.
As a further aspect of the present invention: the upper end rigid coupling of first backup pad is in the left fringe department of copper heating panel lower surface makes the copper heating panel more firm.
As a further aspect of the present invention: the upper end rigid coupling of second backup pad is in the right margin department of copper heating panel lower surface makes the copper heating panel more firm.
As a further aspect of the present invention: the six radiating grooves are in a group and are symmetrically distributed, so that the radiating effect of the copper radiating plate can be improved.
As a further aspect of the present invention: the upper end of the return spring is fixedly connected to the upper inner side wall of the mounting groove, so that the return spring can be mounted more stably.
As a further aspect of the present invention: the size and the shape of the heat-conducting silica gel rod are matched with those of the circuit board block, so that the heat-conducting effect of the heat-conducting silica gel rod is better.
As a further aspect of the present invention: the spacing groove is arranged in the inside of copper heating panel, and two the lug corresponds respectively with two the inside wall of spacing groove is inconsistent, can prevent that heat conduction silica gel stick from landing from the spacing groove.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the design of first backup pad and second backup pad can make the installation between protection shield body and the copper heating panel more stable, and the design of radiating groove can increase the contact density of copper heating panel and air to the radiating effect has further been strengthened.
2. The design of heat-conducting device can make the heat-conducting silica gel stick can adapt to the circuit plate block of co-altitude and shape not, improves the heat conductivity of protection shield body, increases the security of protection shield body, and mutually supporting of reset spring, spacing groove and lug can prevent that the heat-conducting silica gel stick from landing from the spacing groove, has increased heat-conducting device's security.
Drawings
Fig. 1 is a schematic structural view of a charge and discharge protection plate of a lithium battery pack;
FIG. 2 is a cross-sectional view of a heat conducting device in a lithium battery pack charge and discharge protection plate;
fig. 3 is a top view of a copper heat sink plate in a lithium battery pack charge/discharge protection plate.
In the figure: 1. a protection plate body; 2. a first support plate; 3. a second support plate; 4. a circuit board block; 5. a copper heat sink plate; 6. a heat sink; 7. a heat conducting device; 8. mounting grooves; 9. a return spring; 10. a heat-conducting silica gel rod; 11. a limiting groove; 12. and (4) a bump.
Detailed Description
Referring to fig. 1 to 3, in an embodiment of the present invention, a lithium battery pack charging/discharging protection plate includes a protection plate body 1, a first support plate 2 is disposed on an upper surface of the protection plate body 1, a second support plate 3 is disposed on a right side of the first support plate 2, the first support plate 2 is disposed at a right edge of the protection plate body 1, the second support plate 3 is disposed at a left edge of the protection plate body 1, the first support plate 2 and the second support plate 3 are symmetrically distributed, a set of circuit boards 4 is disposed on the upper surface of the protection plate body 1, a copper heat sink 5 is disposed above the circuit boards 4, an upper end of the first support plate 2 is fixedly connected to the left edge of a lower surface of the copper heat sink 5, an upper end of the second support plate 3 is fixedly connected to the right edge of the lower surface of the copper heat sink 5, heat dissipation grooves 6 are disposed on the upper surface of the copper heat sink 5, and six heat dissipation grooves 6 are formed as a set, and six radiating grooves 6 are the symmetric distribution, and the design of first backup pad 2 and second backup pad 3 can make the installation between protection shield body 1 and the copper heating panel 5 more stable, and the design of radiating grooves 6 can increase the contact density of copper heating panel 5 and air to the radiating effect has further been strengthened.
In fig. 1, 2 and 3: the heat conducting device 7 is arranged inside the copper heat radiating plate 5, the heat conducting device 7 comprises a mounting groove 8, a reset spring 9, a heat conducting silica gel rod 10, a limiting groove 11 and a convex block 12, a group of mounting grooves 8 are formed inside the copper heat radiating plate 5, the reset spring 9 is fixedly connected inside the mounting groove 8, the heat conducting silica gel rod 10 is fixedly connected at the lower end of the reset spring 9, the convex blocks 12 are respectively arranged on the left side wall and the right side wall of the heat conducting silica gel rod 10, the limiting grooves 11 are respectively formed on the left side and the right side of the heat conducting silica gel rod 10, the upper end of the reset spring 9 is fixedly connected on the upper inner side wall of the mounting groove 8, the size and the shape of the heat conducting silica gel rod 10 are matched with the size and the shape of the circuit board block 4, the limiting grooves 11 are arranged inside the copper heat radiating plate 5, the two convex blocks 12 respectively correspond to and are abutted against the inner side walls of the two limiting grooves 11, the heat conducting device 7 can enable the heat conducting silica gel rod 10 to adapt to the circuit board blocks 4 with different heights and shapes, the heat conductivity of the protection plate body 1 is improved, the safety of the protection plate body 1 is improved, the reset spring 9, the limiting groove 11 and the lug 12 are matched with each other, the heat-conducting silica gel rod 10 can be prevented from sliding down from the limiting groove 11, and the safety of the heat-conducting device 7 is improved.
The utility model discloses a theory of operation is: the worker firstly installs the heat conducting device 7, the shape of the heat conducting silica gel rod 10 can be set according to the circuit boards 4 with different shapes in the protective plate body 1, then the stretching degree of the reset spring 9 can be adjusted according to the circuit boards 4 with different heights in the protective plate body 1, even if the heights of the circuit boards 4 are different, the heat conducting silica gel rod 10 can be stretched by the reset spring 9 to enable the bottom of the heat conducting silica gel rod 10 to be always abutted against the circuit boards 4, the heat conductivity of the protective plate body 1 is improved, the lug 12 can enable the heat conducting silica gel rod 10 to move up and down in the limiting groove 11, the heat conducting silica gel rod 10 is prevented from sliding off from the inside of the limiting groove 11, the safety of the heat conducting device 7 is improved, the installation between the protective plate body 1 and the copper heat radiating plate 5 can be more stable due to the design of the first supporting plate 2 and the second supporting plate 3, and the contact density of the copper radiating plate 5 and air can be increased due to the design of the radiating groove 6, thereby further enhancing the heat dissipation effect.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a lithium cell group charge-discharge protection plate, includes protection shield body (1), its characterized in that, the upper surface of protection shield body (1) is provided with first backup pad (2), the right side of first backup pad (2) is provided with second backup pad (3), the upper surface of protection shield body (1) is provided with a set of circuit plate piece (4), the top of circuit plate piece (4) is provided with copper heating panel (5), radiating groove (6) have been seted up to the upper surface of copper heating panel (5), the inside of copper heating panel (5) is provided with heat abstractor (7).
2. The lithium battery pack charging and discharging protection plate according to claim 1, wherein the heat conducting device (7) comprises a mounting groove (8), a reset spring (9), a heat conducting silica gel rod (10), a limiting groove (11) and a bump (12), a set of the mounting groove (8) is formed in the copper heat dissipation plate (5), the reset spring (9) is fixedly connected to the inside of the mounting groove (8), the heat conducting silica gel rod (10) is fixedly connected to the lower end of the reset spring (9), the bump (12) is mounted on each of the left side wall and the right side wall of the heat conducting silica gel rod (10), and the limiting groove (11) is formed in each of the left side and the right side of the heat conducting silica gel rod (10).
3. The protection plate for charging and discharging of lithium battery pack according to claim 1, wherein the first support plate (2) is disposed at the right edge of the protection plate body (1), the second support plate (3) is disposed at the left edge of the protection plate body (1), and the first support plate (2) and the second support plate (3) are symmetrically distributed.
4. The lithium battery pack charging and discharging protection plate according to claim 1, wherein the upper end of the first support plate (2) is fixedly connected to the left edge of the lower surface of the copper heat dissipation plate (5).
5. The lithium battery pack charging and discharging protection plate according to claim 1, wherein the upper end of the second support plate (3) is fixedly connected to the right edge of the lower surface of the copper heat dissipation plate (5).
6. The lithium battery pack charging and discharging protection plate according to claim 1, wherein six heat dissipation grooves (6) are grouped, and the six heat dissipation grooves (6) are symmetrically distributed.
7. The lithium battery pack charging and discharging protection plate as claimed in claim 2, wherein the upper end of the return spring (9) is fixedly connected to the upper inner sidewall of the mounting groove (8).
8. The lithium battery pack charging and discharging protection plate according to claim 2, wherein the size and shape of the heat conducting silicon gel rod (10) are matched with those of the circuit board block (4).
9. The protection plate for charging and discharging of lithium battery pack according to claim 2, wherein the limiting groove (11) is disposed inside the copper heat sink (5), and the two protrusions (12) respectively contact with the inner sidewalls of the two limiting grooves (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121495522.5U CN214850589U (en) | 2021-07-01 | 2021-07-01 | Lithium cell group charge-discharge protection shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121495522.5U CN214850589U (en) | 2021-07-01 | 2021-07-01 | Lithium cell group charge-discharge protection shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214850589U true CN214850589U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121495522.5U Active CN214850589U (en) | 2021-07-01 | 2021-07-01 | Lithium cell group charge-discharge protection shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214850589U (en) |
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2021
- 2021-07-01 CN CN202121495522.5U patent/CN214850589U/en active Active
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