CN215955355U - Detachable battery heat conduction structure - Google Patents
Detachable battery heat conduction structure Download PDFInfo
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- CN215955355U CN215955355U CN202121897156.6U CN202121897156U CN215955355U CN 215955355 U CN215955355 U CN 215955355U CN 202121897156 U CN202121897156 U CN 202121897156U CN 215955355 U CN215955355 U CN 215955355U
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- battery
- metal base
- heat conduction
- circuit board
- protection plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a detachable battery heat conduction structure which is simple in structure and accurate in temperature measurement. The technical problem to be solved by the utility model is realized by the following technical means: the utility model provides a removable battery heat conduction structure, it includes metal base and protection shield, be provided with the holding cavity on the first side of metal base, the protection shield includes circuit board and components and parts, metal base for the second side of holding cavity cooperatees with the surface of battery, the protection shield with the opening cooperation of holding cavity, the circuit board is located in the holding cavity. The utility model relates to the technical field of battery detection.
Description
Technical Field
The utility model relates to the technical field of battery detection, in particular to a detachable battery heat conduction structure.
Background
The battery of structure to single cylinder type battery adds the protection shield, does not accomplish accurately to the monitoring of the temperature of battery and protection shield at present, and common monitoring mode has following several:
(1) the control board outside the battery is used for monitoring the temperature of the battery or the battery protection board through wire transmission: the battery protection board is internally provided with an NTC component which is used for transmitting NTC values to a control board of other equipment through an external lead output line, and the NTC component is used for sensing the temperature of the surface of the battery or the protection board.
(2) The control board outside the battery directly monitors the temperature of the battery or the battery protection board: the battery protection board is provided with an IC for controlling the temperature, and the protection board is also provided with an NTC, and the IC for controlling the temperature can identify the NTC resistance value.
For the two modes, the temperature difference between the battery and the protection plate is large, so that the surface temperature of the battery during discharging cannot be accurately monitored, and the error is large.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides the detachable battery heat conduction structure which is simple in structure and accurate in temperature measurement.
The technical problem to be solved by the utility model is realized by the following technical means: the utility model provides a removable battery heat conduction structure, it includes metal base and protection shield, be provided with the holding cavity on the first side of metal base, the protection shield includes circuit board and components and parts, metal base for the second side of holding cavity cooperatees with the surface of battery, the protection shield with the opening cooperation of holding cavity, the circuit board is located in the holding cavity.
In the scheme, the components are arranged on the circuit board, the protection plate is contacted with the metal base, and the metal base is contacted with the surface of the battery; when the battery is in charge and discharge, the protection board and the battery can generate heat, the protection board and the metal base can conduct heat, unique structures and materials are adopted, thermal conductivity is utilized, the temperature of the surface of the battery and the temperature of the protection board are conducted, the temperature difference between the surface of the battery and the protection board is reduced from the surface, and the consistency and accuracy of the temperature are favorably realized when the surface of the battery and the battery protection board are used for temperature detection and induction. Different from the heat insulating material of plastic parts on the market, the temperature on the surface of the battery can be transferred to the circuit board through metal with good heat-conducting property, so that the temperature measurement is more accurate.
Further, the second side of the metal base mates with the bottom of the battery.
In the scheme, the metal component with good heat conductivity is adopted for heat conduction, so that the temperature difference between the surface of the battery and the protective plate is extremely small.
Further, the circuit board is a circuit board using metal as a base material, both the metal base and the protection plate can conduct heat, and the materials of the metal base and the protection plate include, but are not limited to, aluminum, copper or tin and alloys thereof.
In the scheme, the circuit board adopts metal as a base material, and mainly utilizes the heat-conducting property of the metal. Copper, aluminum, tin, alloy and the like are used as the circuit board, and the circuit board has the advantage of fast heat transfer.
Further, the protection shield is provided with a groove, the metal base is provided with a convex block, the groove is matched with the convex block, or the protection shield is provided with a convex groove, the metal base is provided with a concave groove, and the convex block is matched with the concave groove.
In the scheme, the protective plate is nested and spliced with the metal base through the grooves and the bumps, so that the assembling mode is simple and the effect is good. In another form, the protective plate is nested and spliced with the metal base through the convex blocks and the concave grooves, and in short, the protective plate is in physical contact with the metal base.
Further, the metal base with the protection shield direct contact, the circuit board with be provided with the heat-conducting layer between the components and parts.
In the scheme, the metal base is in direct contact with the protection plate, the circuit board is in direct contact with the protection plate, and when components of the protection plate generate heat, the heat is transferred through the heat conducting layer (heat conducting silica gel, insulation and the like can be made of other heat conducting materials); the surface of the battery can reach the circuit board directly through the metal base, so that the subsequent temperature detection is more accurate.
Furthermore, the second side of the metal base and the lower end face of the protection plate are both planes, the metal base is attached to the bottom of the battery, the battery comprises a wrapping film, and the wrapping film wraps the metal base and the protection plate.
In the scheme, the heat conduction structure and the battery are packaged together for use, and the heat conduction structure provided by the utility model is excellent in performance aiming at a single battery, and ensures the temperature measurement accuracy.
Furthermore, the bottom of the accommodating cavity is provided with a first heat-conducting sheet, and the first heat-conducting sheet is in direct contact with the circuit board.
In the scheme, heat is conducted between the metal base and the protection plate through the first heat conducting sheet, and the first heat conducting sheet achieves the purpose of conducting heat to the circuit board.
Further, a second heat conducting sheet is arranged between the second side of the metal base and the surface of the battery.
In the above scheme, the metal base and the surface of the battery are in heat conduction and transmission through the second heat conduction sheet.
Furthermore, a negative connecting sheet and a positive connecting sheet are arranged outside the protective plate, a first end of the negative connecting sheet and a first end of the positive connecting sheet are both connected with the protective plate, a second end of the negative connecting sheet is connected with a negative electrode of the battery, a second end of the positive connecting sheet is connected with a positive electrode of the battery, and an outer insulating layer is arranged at the joint of the first end of the positive connecting sheet and the protective plate.
In the scheme, the power supply of the circuit board is realized through the connecting sheet.
Furthermore, an insulating ring and a metal cap are arranged on the positive electrode of the battery, the second end of the positive electrode connecting piece is connected with the metal cap, the second end of the negative electrode connecting piece is connected with a metal sheet, and the metal sheet is abutted to the negative electrode of the battery.
The utility model has the beneficial effects that: the temperature difference of each position of the battery (containing the protection plate) is solved by adopting heat conduction, and the accuracy of temperature measurement and induction is effectively improved.
Drawings
Fig. 1 is an exploded view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As shown in fig. 1, the present invention is a detachable battery heat conduction structure, and includes a metal base 2 and a protection plate 3, wherein a first side of the metal base 2 is provided with an accommodating cavity 4, the protection plate 3 includes a circuit board 5 and components, a second side of the metal base 2 opposite to the accommodating cavity 4 is matched with a surface of a battery 1, the protection plate 3 is matched with an opening of the accommodating cavity 4, and the circuit board 5 is located in the accommodating cavity 4. The components are arranged on the circuit board 5, the protective plate 3 is contacted with the metal base 2, and the metal base 2 is contacted with the surface of the battery 1; when battery 1 was when charging and discharging, protection shield 3 and battery 1 all can produce the heat, and protection shield 3 and metal base 2 all can be heat-conducting, have adopted unique structure and material, and the thermal conductivity of application conducts the temperature of battery 1 surface and protection shield 3, has reduced the temperature difference of battery 1 surface and protection shield 3 from the face, when being favorable to battery surface, battery protection shield to be used for temperature detection and response, the uniformity and the accuracy of temperature. Different from the heat insulating material of plastic parts on the market, the temperature on the surface of the battery 1 can be transferred to the circuit board 5 through metal with good heat-conducting property, so that the temperature measurement is more accurate.
In a specific embodiment, the second side of the metal base 2 cooperates with the bottom of the battery 1. The heat conducting structure is arranged at the bottom of the battery, and is convenient to install and good in effect. Because the metal component with good heat conductivity is adopted for heat conduction, the temperature difference between the surface of the battery 1 and the protection plate 3 is extremely small, and the extremely small temperature difference exists between any part of the bottom, the middle part or the head of the battery 1 and the protection plate 3; in another embodiment, the heat conducting structure of the utility model can be in contact heat conducting fit with any part of the bottom, the middle part or the head part of the battery, and the application range is wide. The figure shown in fig. 1 is a figure of an embodiment, which shows the battery 1 with its bottom fitted with a protective plate 3.
In a specific embodiment, the circuit board 5 is a metal-based circuit board, both the metal base 2 and the protection plate 3 are thermally conductive, and the materials of the metal base 2 and the protection plate 3 include, but are not limited to, aluminum, copper, or tin, and alloys thereof. The circuit board 5 uses metal as a base material, and mainly utilizes the heat-conducting property of the metal. Copper, aluminum, tin, alloy and the like are used as the circuit board 5, and the advantage is that the heat transfer is fast.
In a specific embodiment, the protection plate 3 is provided with a groove 6, the metal base 2 is provided with a bump 7, and the groove 6 is matched with the bump 7. The protection plate 3 is nested and spliced with the metal base 2 through the groove 6 and the convex block 7, and the assembly mode is simple and good in effect. In another embodiment, the protection plate 3 is provided with a convex block, the metal base 2 is provided with a concave groove, the convex block is matched with the concave groove, the protection plate 3 is nested and spliced with the metal base 2 through the convex block and the concave groove, and in short, the protection plate 3 is in physical contact with the metal base 2. In other embodiments, the protection plate 3 and the metal base 2 can be connected by welding, riveting or adhering.
In a specific embodiment, the metal base 2 and the protection plate 3 are in direct contact, and a heat conduction layer is arranged between the circuit board 5 and the components. The heat conducting layer is a heat conducting material, such as silica gel, graphene, nano carbon and the like, and the heat conducting layer is heat conducting silica gel in the embodiment; the metal base 2 directly contacts with the protection plate 3, and when the components of the protection plate 3 generate heat, the heat is transferred through materials such as heat-conducting silica gel and insulation materials (or other heat-conducting materials). The surface of the battery 1 can directly reach the circuit board 5 through the metal base 2, so that the subsequent temperature detection is more accurate.
In a specific embodiment, the second side of the metal base 2 and the lower end surface of the protection plate 3 are both flat surfaces, the metal base 2 is attached to the bottom of the battery 1, the battery 1 includes a wrapping film 8, and the wrapping film 8 wraps the metal base 2 and the protection plate 3. Wherein, the plane can also be a plane with a pull groove, and the wrapping film is a PVC film or a PET film. The heat conduction structure and the battery 1 are packaged together for use, and the heat conduction structure is excellent in performance and guarantees temperature measurement accuracy for a single battery.
In a specific embodiment, a first heat conducting sheet 9 is disposed at the bottom of the accommodating cavity 4, and the first heat conducting sheet 9 is in direct contact with the circuit board 5. The metal base 2 and the protective plate 3 are thermally conducted through the first heat conducting sheet 9, and the first heat conducting sheet 9 plays a role in heat conduction of the circuit board 5.
In a specific embodiment, a second thermally conductive sheet 10 is disposed between the second side of the metal base 2 and the surface of the battery 1. A gap may exist between the metal base 2 and the surface of the battery 1, so that the second heat conducting sheet 10 is designed to be tightly connected with the metal base and the battery; the metal base 2 is in heat conduction with the surface of the battery 1 via the second heat conductive sheet 10.
In a specific embodiment, a negative connection sheet 11 and a positive connection sheet 12 are disposed outside the protection sheet 3, a first end of the negative connection sheet 11 and a first end of the positive connection sheet 12 are both connected to the protection sheet 3, a second end of the negative connection sheet 11 is connected to the negative electrode of the battery 1, a second end of the positive connection sheet 12 is connected to the positive electrode of the battery 1, and an outer insulating layer is disposed at a connection position of the first end of the positive connection sheet 12 and the protection sheet 3. An insulating ring 13 and a metal cap 14 are arranged on the positive electrode of the battery 1, the second end of the positive electrode connecting piece 12 is connected with the metal cap 14, the second end of the negative electrode connecting piece 11 is connected with a metal sheet 15, and the metal sheet 15 is abutted to the negative electrode of the battery 1. The circuit board 5 is powered through the connecting piece 11.
In this embodiment, there are two heat transfer paths between the protection plate 3 and the metal base 2, path 1: the protection plate 3 is closely connected and transmitted with the metal base 2; route 2: the protective plate 3 and the metal chassis 2 are transferred by the first heat conductive sheet 9. On the other hand, the surface of the battery 1 and the metal base 2 are transferred through the second heat conductive sheet 10.
The utility model has the beneficial effects that: the temperature difference of each position of the battery (containing the protection plate) is solved by adopting heat conduction, and the accuracy of temperature measurement and induction is effectively improved.
In the embodiment, the utility model adopts the following measures to solve the problems of rapid heat transfer and temperature consistency:
1. the protective plate 3 is made of metal (copper base, aluminum gold, tin gold, alloy and other materials with high heat conduction speed) and is provided with electronic circuits and components on the premise of considering insulation. The metal substrate has a higher thermal conductivity than the FR4 board.
2. The metal base 2 is adopted as a heat transfer element (metal refers to metal with high heat conduction speed such as copper, aluminum, tin, alloy and the like), the metal base 2 is sleeved with the protective plate, the protective plate is in close contact with the metal base 2 in a welding, riveting and adhesion mode, and the metal base 2 can well transfer heat.
3. The protection plate 3 and the metal base 2, and the metal base 2 and the surface of the battery 1 are thermally conducted by using a first thermal conductive sheet 9 and a second thermal conductive sheet 10 (the thermal conductive material is a material with good thermal conductivity such as thermal conductive silica gel, nano carbon, graphene and the like as a medium).
In the utility model, the heat conduction of the heat-conducting glue material and the metal base 2 is adopted, and the difference between the surface temperature of the battery core and the surface temperature of the protection plate 3 can be reduced to be within 3 ℃ during 10A discharge; if no heat conducting glue material and no metal base 2, 10A are discharged, the difference value between the surface temperature of the battery core and the surface temperature of the protection plate 3 is above 10 ℃.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides a removable battery heat conduction structure, its characterized in that includes metal base (2) and protection shield (3), be provided with holding cavity (4) on the first side of metal base (2), protection shield (3) are including circuit board (5) and components and parts, metal base (2) for the second side of holding cavity (4) cooperatees with the surface of battery (1), protection shield (3) with the opening cooperation of holding cavity (4), circuit board (5) are located in holding cavity (4).
2. A detachable battery heat conducting structure according to claim 1, characterized in that the second side of the metal base (2) cooperates with the bottom of the battery (1).
3. The detachable battery heat conducting structure according to claim 1, wherein the circuit board (5) is a metal-based circuit board, the metal base (2) and the protection plate (3) are both heat conductive, and the materials of the metal base (2) and the protection plate (3) include, but are not limited to, aluminum, copper or tin and alloys thereof.
4. A detachable battery heat conducting structure according to claim 1, characterized in that the protective plate (3) is provided with a groove (6), the metal base (2) is provided with a bump (7), the groove (6) is adapted to the bump (7), or the protective plate (3) is provided with a convex block, the metal base (2) is provided with a concave groove, and the convex block is adapted to the concave groove.
5. A detachable battery heat conduction structure according to claim 1, wherein the metal base (2) and the protection plate (3) are in direct contact, and a heat conduction layer is provided between the circuit board (5) and the components.
6. A detachable battery heat conduction structure according to claim 1, wherein the second side of the metal base (2) and the lower end surface of the protection plate (3) are both planar, the metal base (2) is attached to the bottom of the battery (1), the battery (1) comprises a wrapping film (8), and the wrapping film (8) wraps the metal base (2) and the protection plate (3).
7. The removable battery heat conduction structure according to claim 1, wherein the bottom of the receiving cavity (4) is provided with a first heat conduction sheet (9), and the first heat conduction sheet (9) is in direct contact with the circuit board (5).
8. A detachable battery heat conducting structure according to claim 1, characterized in that a second heat conducting sheet (10) is arranged between the second side of the metal base (2) and the surface of the battery (1).
9. A detachable battery heat conduction structure according to claim 1, wherein a negative electrode connection piece (11) and a positive electrode connection piece (12) are provided outside the protection plate (3), a first end of the negative electrode connection piece (11) and a first end of the positive electrode connection piece (12) are both connected with the protection plate (3), a second end of the negative electrode connection piece (11) is connected with a negative electrode of the battery (1), a second end of the positive electrode connection piece (12) is connected with a positive electrode of the battery (1), and a first end of the positive electrode connection piece (12) is provided with an outer insulation layer at a connection part with the protection plate (3).
10. A detachable battery heat conduction structure according to claim 9, wherein an insulating ring (13) and a metal cap (14) are disposed on the positive electrode of the battery (1), the second end of the positive electrode connection piece (12) is connected to the metal cap (14), the second end of the negative electrode connection piece (11) is connected to a metal sheet (15), and the metal sheet (15) abuts against the negative electrode of the battery (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121897156.6U CN215955355U (en) | 2021-08-13 | 2021-08-13 | Detachable battery heat conduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121897156.6U CN215955355U (en) | 2021-08-13 | 2021-08-13 | Detachable battery heat conduction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215955355U true CN215955355U (en) | 2022-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121897156.6U Active CN215955355U (en) | 2021-08-13 | 2021-08-13 | Detachable battery heat conduction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215955355U (en) |
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2021
- 2021-08-13 CN CN202121897156.6U patent/CN215955355U/en active Active
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