Battery pack temperature management structure

Abstract

The utility model discloses a battery pack temperature management structure, it includes the casing, the inside of casing is provided with the recess, the inner wall of recess is connected with the bottom plate through bolt, the inner wall of bottom plate is provided with fixed groove, the inner wall of fixed groove is connected with the filter screen through bolt, the inner wall of fixed groove is connected with the fan through bolt, the top of bottom plate is provided with the fixed plate, the top of fixed plate is provided with the heat pipe, the top of heat pipe is provided with the fin, the top of fin is provided with the placing plate, this kind of battery pack temperature management structure cooperates through material board structure and fan structure, makes it to adjust the temperature stability in battery pack, thereby is favorable to the performance of good performance of electric core, secondly, under the cooperation of nut, can be convenient to dismount or install the cover plate under the mutual cooperation between the spring and the clamping column.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery pack technology, specifically a battery pack temperature management structure. Background Technology

[0002] A battery pack is a system formed by connecting multiple individual cells in series and parallel. During operation, the charging and discharging process of the battery pack generates heat, which causes changes in the overall temperature of the battery pack and the ambient temperature, affecting the working performance of the battery pack. Therefore, a battery pack temperature management structure is needed.

[0003] The prior art patent document CN222637474U provides a new energy battery pack structure for easy battery replacement, including a housing. A first magnet and a second magnet are arranged on two opposite inner walls in the height direction of the housing. A third magnet and a fourth magnet are arranged at opposite ends of the battery pack. The third magnet is arranged opposite to the first magnet and the opposite surfaces have the same polarity. The fourth magnet is arranged opposite to the second magnet and the opposite surfaces have the same polarity. The displacement of the battery pack relative to the housing is limited in the height direction of the housing by a limiting component. When the battery pack structure provided in this application is subjected to bumps along the height direction of the housing, the repulsive force between the third magnet and the first magnet and the repulsive force between the fourth magnet and the second magnet can buffer the battery pack and prevent damage. Moreover, the magnets have a long service life due to their material properties and are difficult to fail. Therefore, the battery pack structure provided in this application can have a long service life.

[0004] Although the device has many beneficial effects, it still has the following problems: During use, the device dissipates heat through a heat dissipation component. When the external ambient temperature varies, the device has difficulty regulating the internal temperature of the battery pack, which can easily affect the battery's performance. Secondly, when disassembly is required, a large number of bolts need to be removed. After prolonged oxidation in the air, the bolts may rust or even deform, which can cause inconvenience to the disassembly process. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] 1. Technical problems to be solved:

[0007] In order to solve the problems mentioned above that easily affect the performance of the battery and cause inconvenience during the disassembly process, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a battery pack temperature management structure, which aims to solve the problems that easily affect the battery's performance and to make the disassembly process more convenient.

[0009] 2. Technical Solution:

[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0011] A battery pack temperature management structure includes a housing with a groove inside. A base plate is bolted to the inner wall of the groove. A fixing groove is bolted to the inner wall of the base plate. A filter is bolted to the inner wall of the fixing groove. A fan is bolted to the inner wall of the fixing groove. A fixing plate is positioned above the base plate. A heat-conducting pipe is positioned on top of the fixing plate. A heat sink is positioned on top of the heat-conducting pipe. A placement plate is positioned above the heat sink. A temperature sensor is bolted to the interior of the placement plate. A material plate is bolted to the top of the placement plate. The filter structure effectively isolates external dust from the fan, thus facilitating better maintenance of the fan's lifespan.

[0012] As a preferred embodiment of the battery pack temperature management structure of this utility model, the top of the base plate is provided with a mounting groove, the inner wall of the mounting groove is snapped with a mounting post, the top of the mounting post is connected to the fixing plate by bolts, there are multiple fixing grooves, and the fixing grooves are evenly distributed, which facilitates better heat dissipation of the battery cells in the battery pack.

[0013] As a preferred embodiment of the battery pack temperature management structure of this utility model, the surface of the groove is provided with a square groove, the inner wall of the square groove is connected with a grid by bolts, and the top of the placement plate is provided with a battery cell. There are multiple battery cells, and the battery cells are distributed in an equidistant manner. Through the structural design of the grid, it is easy to effectively isolate external dust from the outside of the shell and reduce the possibility of dust entering the inside of the shell.

[0014] In a preferred embodiment of the battery pack temperature management structure of this utility model, the inner wall of the groove is provided with a slot, the bottom of the inner wall of the slot is connected to a locking post by bolts, the outer circumference of the locking post is fitted with a locking plate, the bottom of the locking plate is welded with a spring, the surface of the locking plate is slidably connected to the slot, the outer circumference of the locking post is threaded with a nut, and the surface of the locking plate is connected to a cover plate by bolts.

[0015] In a preferred embodiment of the battery pack temperature management structure of this utility model, there are multiple card plates, which are symmetrically distributed.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This type of battery pack temperature management structure, through the material plate structure, facilitates the absorption and storage of heat when the temperature is high. When the external ambient temperature is low, the material plate can release the stored heat to regulate the temperature stability inside the battery pack. The operation of the fan connected by bolts inside the fixing slot allows air to smoothly enter the casing, thereby making good use of convection to improve the heat dissipation effect to a certain extent, which is conducive to the better performance of the battery cells.

[0019] This battery pack temperature management structure, through the cooperation of the card plate, card slot, spring and card post, facilitates the removal or installation of the cover plate with the help of the nut, thereby facilitating the installation or removal of battery cells inside the box, thus improving the convenience of using the whole device to a certain extent. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of a battery pack temperature management structure according to the present invention;

[0022] Figure 2 This is an exploded view of the overall structure of a battery pack temperature management structure according to the present invention;

[0023] Figure 3 This utility model relates to a battery pack temperature management structure. Figure 2 A schematic diagram of the structure of section A in the middle;

[0024] Figure 4 This utility model relates to a battery pack temperature management structure. Figure 2 A schematic diagram of the structure of section B in the middle;

[0025] Figure 5 This is an exploded view of the base plate structure of a battery pack temperature management structure according to this utility model.

[0026] The following are the labels in the diagram: 1. Housing; 2. Square groove; 3. Grid; 4. Groove; 5. Cover plate; 6. Clamping plate; 7. Nut; 8. Spring; 9. Clamping post; 10. Clamping slot; 11. Battery cell; 12. Placement plate; 13. Fixing plate; 14. Heat pipe; 15. Heat sink; 16. Base plate; 17. Mounting slot; 18. Mounting post; 19. Fan; 20. Fixing slot; 21. Temperature sensor; 22. Filter screen; 23. Material plate. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0029] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0032] This utility model provides an overall structural diagram of an embodiment of a battery pack temperature management structure, including:

[0033] Please see Figures 1-5 This utility model provides a technical solution:

[0034] A battery pack temperature management structure includes a housing 1. A groove 4 is formed inside the housing 1. A base plate 16 is bolted to the inner wall of the groove 4. A fixing groove 20 is formed on the inner wall of the base plate 16. A filter 22 is bolted to the inner wall of the fixing groove 20. A fan 19 is bolted to the inner wall of the fixing groove 20. A fixing plate 13 is positioned above the base plate 16. A heat-conducting pipe 14 is positioned on top of the fixing plate 13. A heat sink 15 is positioned on top of the heat-conducting pipe 14. A placement plate 12 is positioned above the heat sink 15. A temperature sensor 21 is bolted to the interior of the placement plate 12. A material plate 23 is bolted to the top of the placement plate 12. The preferred material is paraffin-expanded graphite composite phase change material. The temperature sensor 21 senses the temperature of the battery cell 11. The PLC has an editable chip with a preset threshold. When the data exceeds the threshold, that is, when the temperature is higher than the standard, the PLC will control the fan 19 connected by bolts inside the fixed slot 20 to operate, so that air can smoothly enter the housing 1. At the same time, the heat-conducting sheet is used to increase the heat dissipation area of ​​the heat pipe 14, thereby improving the heat dissipation effect. In addition, when the temperature is lower than the standard state, the material of the material plate 23 itself facilitates the release of the heat stored therein, which is used to regulate the temperature inside the battery pack and keep it in a better temperature state.

[0035] It is worth noting that, in order to better cool the internal environment of the groove 4, the top of the base plate 16 is provided with an installation groove 17, the inner wall of the installation groove 17 is connected to an installation column 18, and the top of the installation column 18 is connected to a fixing plate 13 by bolts. There are multiple fixing grooves 20, which are evenly distributed. Through the structural design of multiple evenly distributed fixing grooves 20, the device can better cool the internal environment of the groove 4.

[0036] Next, in order to supply power to new energy vehicles, specifically, a square groove 2 is formed on the surface of the groove 4, and a grid 3 is connected to the inner wall of the square groove 2 by bolts. A battery cell 11 is set on the top of the placement plate 12. There are multiple battery cells 11, which are distributed in an equidistant manner. The material of the placement plate 12 is preferably copper plate, which facilitates the temperature of the battery cells 11 to be detected by the temperature sensor 21. Through multiple battery cells 11 distributed in an equidistant manner, it can better supply power to new energy vehicles.

[0037] Meanwhile, in order to better inspect the internal parts of the housing 1, specifically, a slot 10 is provided on the inner wall of the groove 4, and a locking post 9 is bolted to the bottom of the inner wall of the slot 10. A locking plate 6 is sleeved on the outer circumference of the locking post 9, and a spring 8 is welded to the bottom of the locking plate 6. The slot 10 is slidably connected to the surface of the locking plate 6, and a nut 7 is threaded to the outer circumference of the locking post 9. A cover plate 5 is bolted to the surface of the locking plate 6. Through the mutual cooperation between the locking plate 6, the slot 10, the spring 8, the locking post 9, and the nut 7, it is easy to disassemble or install the cover plate 5, which is beneficial for better inspection of the internal parts of the housing 1.

[0038] Finally, in order to better install and remove the cover plate 5, there are multiple clamping plates 6, which are symmetrically distributed. The multiple symmetrically distributed clamping plates 6 facilitate the installation and removal of the cover plate 5 through a multi-angle fixing method.

[0039] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0040] Combination Figures 1-5 The specific usage process of the battery pack temperature management structure in this embodiment is as follows:

[0041] 1: When using this type of battery pack temperature management structure, after the staff moves the device to a suitable position and connects the power supply, it can be used to supply power inside the new energy vehicle;

[0042] 2: When the surface temperature of the battery cell 11 is high, the temperature of the battery cell 11 is sensed by the temperature sensor 21 inside the placement plate 12. The PLC has an editable chip with a preset threshold. When the data exceeds the threshold, that is, when the temperature is higher than the standard, the PLC will control the fan 19 connected by bolts inside the fixing slot 20 to run, so that air can smoothly enter the housing 1. At the same time, the heat sink 15 on the surface of the fixing plate 13 increases the heat dissipation area of ​​the heat pipe 14, thereby improving the heat dissipation effect to a certain extent. In addition, the material plate 23, which is a paraffin-expanded graphite composite phase change material, can better store some of the heat of the battery cell 11 and release the heat when the temperature of the battery cell 11 is low, thereby regulating the temperature inside the battery pack and maintaining its better stability.

[0043] 3: When the staff needs to install or remove the battery cell 11 inside the housing 1 individually, the staff can first unscrew the nut 7 from the outer circumference of the locking post 9 through the threaded connection, and take out the locking plate 6 and spring 8 from the inside of the locking groove 10. This makes it easy to take out the cover plate 5 from the inside of the groove 4, which makes it easy to remove or install the cover plate 5, and thus makes it easy to install and replace the battery cell 11 and other parts inside the housing.

[0044] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery pack temperature management structure, characterized in that, The device includes a housing (1), the interior of which has a groove (4), the inner wall of which is connected to a base plate (16) by bolts, the inner wall of which has a fixing groove (20), the inner wall of which has a filter screen (22) by bolts, the inner wall of which has a fan (19) by bolts, a fixing plate (13) is provided above the base plate (16), a heat pipe (14) is provided on the top of the fixing plate (13), a heat sink (15) is provided on the top of the heat pipe (14), a placement plate (12) is provided above the heat sink (15), a temperature sensor (21) is connected to the interior of the placement plate (12) by bolts, and a material plate (23) is connected to the top of the placement plate (12) by bolts.

2. The battery pack temperature management structure according to claim 1, characterized in that, The top of the base plate (16) is provided with an installation groove (17), and the inner wall of the installation groove (17) is connected to an installation column (18). The top of the installation column (18) is connected to the fixing plate (13) by bolts. There are multiple fixing grooves (20), and the fixing grooves (20) are distributed in an equidistant manner.

3. The battery pack temperature management structure according to claim 1, characterized in that, The surface of the groove (4) is provided with a square groove (2), and the inner wall of the square groove (2) is connected with a grid (3) by bolts. The top of the placement plate (12) is provided with a battery cell (11), and there are multiple battery cells (11) in an equidistant distribution.

4. The battery pack temperature management structure according to claim 1, characterized in that, The inner wall of the groove (4) is provided with a slot (10). The bottom of the inner wall of the slot (10) is connected to a locking post (9) by bolts. The outer circumference of the locking post (9) is fitted with a locking plate (6). The bottom of the locking plate (6) is welded with a spring (8). The surface of the locking plate (6) is slidably connected to the slot (10). The outer circumference of the locking post (9) is threaded with a nut (7). The surface of the locking plate (6) is connected with a cover plate (5) by bolts.

5. The battery pack temperature management structure according to claim 4, characterized in that, There are multiple card plates (6), and the card plates (6) are symmetrically distributed.

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