Energy storage power supply

Abstract

The utility model belongs to the technical field of energy storage equipment, and discloses an energy storage power supply, which comprises a shell, a battery module and a BMS module, and is characterized in that the shell is provided with a ventilation structure; the battery module is arranged in the shell, the BMS module is arranged in the shell, the BMS module is located above the battery module in the first direction, the BMS module and the BMS module are arranged in a spaced mode, the BMS module comprises a first control panel and a heat dissipation panel, the heat dissipation panel is installed on the first control panel and is in thermal coupling with the first control panel, and the heat dissipation panel and the top wall of the shell are arranged in a spaced mode. In the actual working process of the energy storage power supply, the temperature of the shell is relatively low, the heating element on the first control panel cannot heat the battery module, the safety of the battery module is high, and the size of the whole energy storage power supply is small.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an energy storage power supply. Background Technology

[0002] Existing portable energy storage battery packs often come with a BMS control board. As the overall output power increases, the overall heat generation is also high. The temperature resistance of the power components is higher than that of the cell casing, which affects the user experience. In actual use, it will heat the cell, affecting battery life and safety. Utility Model Content

[0003] The purpose of this invention is to provide an energy storage power supply. During actual operation, the outer casing temperature of the energy storage power supply is relatively low, the heating element on the BMS module will not heat the battery module, the battery module has high safety, and the overall size of the energy storage power supply is small.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model discloses an energy storage power supply, comprising: a housing with a ventilation structure; a battery module disposed inside the housing; and a BMS module disposed inside the housing, the BMS module being located above the battery module along a first direction and spaced apart from the battery module, the BMS module including a first control board and a heat sink, the heat sink being mounted on the first control board and thermally coupled to the first control board, and the heat sink being spaced apart from the top wall of the housing.

[0006] In some embodiments, the energy storage power supply further includes an MPPT control module disposed within the housing. The MPPT control module is located on one side of the battery module along the second direction and includes a second control board and a heat dissipation assembly. The heat dissipation assembly is mounted on the second control board and forms a heat dissipation duct on the side of the battery module.

[0007] In some embodiments, the BMS module further includes a bracket for supporting the first control board; the battery module includes a battery rack and a plurality of individual batteries supported on the battery rack, with the bracket spaced apart from the battery rack.

[0008] In some embodiments, a first switching transistor group and a second switching transistor group are spaced apart on the first control board. The heat sink includes two abutment portions and a connecting portion. The two abutment portions abut against the first switching transistor group and the second switching transistor group on the first control board, respectively. The two oppositely disposed sides of the connecting portion are connected to the abutment portions.

[0009] In some embodiments, the heat sink further includes a fixing part, the fixing part having a first fixing hole, and the first control plate having a second fixing hole, the fixing member passing through the first fixing hole and the second fixing hole to fix the heat sink to the first control plate.

[0010] In some embodiments, a third switching transistor is provided on the second control board, and the heat dissipation assembly includes: a heat sink, which is mounted on the second control board; a heat dissipation fan, which is located at one end of the heat sink along a third direction; and an air duct component, which covers the heat sink and the heat dissipation fan and is connected to the housing, wherein the sidewall of the air duct component is spaced apart from the second control board to form the heat dissipation air duct.

[0011] In some specific embodiments, the upper end of the air duct component along the first direction is connected to the bracket of the BMS module, and the lower end of the air duct component along the first direction is connected to the support structure provided at the bottom of the housing.

[0012] In some embodiments, the housing includes a first housing and a second housing joined together along a second direction, and the ventilation structure is provided at both ends of the housing along a third direction.

[0013] In some specific embodiments, the first housing is provided with a first plug-in portion extending along the second direction, and the second housing is provided with a second plug-in portion extending along the second direction, wherein the first plug-in portion can be plugged into the second plug-in portion.

[0014] In some specific embodiments, the first housing and the second housing are provided with a first half-hole and a second half-hole at both ends along the second direction. The first half-hole and the second half-hole are spliced ​​together to form a mounting hole. The ventilation structure includes ventilation louvers installed in the mounting hole.

[0015] The beneficial effects of this energy storage power supply are as follows: The heat dissipation plate used to dissipate heat from the first control board is spaced apart from the battery module and from the top wall of the casing, achieving heat insulation through an air layer. This prevents heat generated by the BMS module during operation from being conducted to the battery module and casing, resulting in a relatively low casing temperature and higher battery module safety. The heat dissipation plate does not have fins, which ensures heat dissipation while reducing the overall height of the BMS module, thus contributing to a reduction in the height of the energy storage power supply.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of the energy storage power supply according to an embodiment of the present invention;

[0018] Figure 2 This is an exploded structural diagram of the energy storage power supply according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the energy storage power supply with its outer casing removed according to an embodiment of the present invention;

[0020] Figure 4 yes Figure 3 The diagram shows the exploded structure of the shown structure;

[0021] Figure 5 This is an exploded view of the BMS module according to an embodiment of the present invention;

[0022] Figure 6 This is an exploded view of the MPPT control module according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the ventilation component according to an embodiment of the present utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the first and second housings according to an embodiment of the present invention.

[0025] Figure label:

[0026] 100. Outer shell; 110. First shell; 111. First half-hole; 120. Second shell; 121. Second half-hole;

[0027] 200. Battery module; 210. Battery rack; 220. Individual battery cell;

[0028] 300, BMS module; 310, first control board; 311, first switching transistor group; 312, second switching transistor group; 320, heat sink; 321, stop part; 322, connecting part; 323, fixing part; 330, bracket;

[0029] 400. MPPT control module; 410. Second control board; 411. Inductor; 420. Heat dissipation assembly; 421. Heat sink; 422. Cooling fan; 423. Air duct component;

[0030] 500. Ventilation structure; 510. Ventilation louvers; 520. Handle. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] This utility model discloses an energy storage power supply, referenced... Figures 1-4 As shown, the energy storage power supply includes a housing 100, a battery module 200, and a BMS module 300. The housing 100 has a ventilation structure 500. The BMS (Battery Management System) is located inside the housing 100. The battery module 200 and the BMS module 300 are both located inside the housing 100, with the BMS module 300 positioned above the battery module 200 along a first direction and spaced apart. The BMS module 300 includes a first control board 310 and a heat sink 320. The heat sink 320 is mounted on and thermally coupled to the first control board 310. The heat sink 320 is spaced apart from the top wall of the housing 100. An MPPT control module 400 is located inside the housing 100.

[0035] It is understood that in this embodiment, the heat sink 320 for dissipating heat from the first control board 310 is spaced apart from the battery module 200 and from the top wall of the housing 100. This utilizes an air layer for heat insulation, preventing heat generated by the BMS module 300 during operation from being conducted to the battery module 200 and the housing 100. This results in a relatively low temperature for the housing 100 and higher safety for the battery module 200. The heat sink 320 does not have fins, which ensures heat dissipation while reducing the overall height of the BMS module 300, thus facilitating a reduction in the height of the energy storage power supply.

[0036] refer to Figures 1-4 As shown, the energy storage power supply also includes an MPPT control module 400 located on one side of the battery module 200 along the second direction, supporting MMPT (Maximum Power Point Tracking). The MPPT control module 400 includes a second control board 410 and a heat dissipation component 420. The heat dissipation component 420 is mounted on the second control board 410 and forms a heat dissipation duct on the side of the battery module 200. It can be understood that by having the MPPT control module 400 located on one side of the battery module 200 along the second direction, the heat dissipation component 420 dissipates the heat generated by the second control board 410 during operation through the heat dissipation duct, preventing heat transfer to the battery module 200 and further improving the operational safety of the battery module 200.

[0037] Optional, see reference Figure 4 and Figure 5 As shown, the BMS module 300 also includes a bracket 330, which supports the first control board 310. One side of the bracket 330 along the second direction is connected to the heat dissipation component 420. The battery module 200 includes a battery rack 210 and multiple individual batteries 220 supported on the battery rack 210. The bracket 330 and the battery rack 210 are spaced apart. It is understood that because the bracket 330 is connected to the heat dissipation component 420 along the second direction, it ensures that the bracket 330 and the battery rack 210 are spaced apart. When the first control board 310 is installed on the bracket 330, it ensures that the first control board 310 and the battery rack 210 are spaced apart, thereby forming a control heat insulation layer between the BMS module 300 and the battery module 200, preventing the heat generated by the first control board 310 from being transferred to the battery module 200. Optionally, the bracket 330 is a plastic bracket. Of course, in other embodiments of this utility model, the bracket 330 can be made of other materials according to actual needs.

[0038] Optionally, the bracket 330 is provided with positioning posts, and the first control plate 310 is provided with positioning holes. The cooperation of the positioning holes and positioning posts facilitates the installation of the first control plate 310 and also improves the installation stability of the first control plate 310. Of course, in other embodiments of this utility model, the first control plate 310 can also be fixed to the bracket 330 by other methods such as snap-fit ​​or connector connection, depending on actual needs.

[0039] refer to Figure 5 As shown, a first control board 310 is provided with a first switching transistor group 311 and a second switching transistor group 312 spaced apart. One of the first switching transistor group 311 and the second switching transistor group 312 is responsible for charging control, and the other is responsible for discharging control. That is, when the battery module 200 needs to be charged, the charging transistor group is turned on, and when discharging, the discharging transistor group is turned on. The heat sink 320 includes two abutting parts 321 and a connecting part 322. The two abutting parts 321 abut against the first switching transistor group 311 and the second switching transistor group 312 respectively. The two opposite sides of the connecting part 322 are connected to the abutting parts 321, and the upper surface of the abutting part 321 is located above the upper surface of the connecting part 322. It is understandable that the stop portion 321 abuts against the first switching transistor group 311 and the second switching transistor group 312 on the first control board 310. The heat generated by the first switching transistor group 311 and the second switching transistor group 312 during operation can be quickly transferred to the stop portion 321 to achieve heat dissipation of the first control board 310. The two sides of the connecting portion 322, which are arranged opposite to each other, are connected to the stop portion 321. The upper surface of the stop portion 321 is located above the upper surface of the connecting portion 322. The connecting portion 322 has a downwardly recessed structure relative to the stop portion 321, which can further increase the heat dissipation area.

[0040] refer to Figure 5 As shown, the heat sink 320 also includes a fixing part 323, which has a first fixing hole, and the first control plate 310 has a second fixing hole. A fixing member passes through the first and second fixing holes to fix the heat sink 320 onto the first control plate 310. Therefore, in actual assembly, it is only necessary to place the heat sink 320 onto the first control plate 310, align the first and second fixing holes, and then insert the fixing member. Installation is very convenient, and the heat sink 320 has good stability. It should be noted that in embodiments of this invention, the fixing member can be a screw, pin, or other structure. Of course, in other embodiments of this invention, the heat sink 320 can also be fixed to the first control plate 310 by snap-fitting, thermally conductive adhesive bonding, or other methods.

[0041] refer to Figure 4 and Figure 6As shown, a third switching transistor is disposed on the second control board 410. The heat dissipation assembly 420 includes a heat sink 421, a cooling fan 422, and an air duct component 423. The heat sink 421 is mounted on the second control board 410 and thermally coupled to the third switching transistor. The cooling fan 422 is located at one end of the heat sink 421 along a third direction. The air duct component 423 covers the heat sink 421 and the cooling fan 422 and is connected to the outer casing 100. The sidewall of the air duct component 423 is spaced apart from the second control board 410 to form a heat dissipation air duct. It can be understood that during actual operation, the rotation of the cooling fan 422 can drive the airflow to flow in a forced manner. The heat generated by the second control board 410 during operation is transferred to the heat sink 421 and then carried away by the flowing airflow. Through the combined action of the heat sink 421 and the cooling fan 422, the heat dissipation efficiency of the second control board 410 can be improved, ensuring its stable operation.

[0042] Optionally, the heat sink 421 is positioned near the inductor 411 on the second control board 410. The inductor 411 generates a large amount of heat during operation, and the placement of the heat sink 421 near the inductor 411 on the second control board 410 enables rapid heat dissipation of the inductor 411, thereby ensuring the operational safety of the second control board 410.

[0043] Optionally, radiator 421 is a finned radiator, but other radiators can also be selected according to actual needs.

[0044] Optionally, the upper end of the air duct component 423 along the first direction is connected to the bracket 330 of the BMS module 300, and the lower end of the air duct component 423 along the first direction is connected to the support structure located at the bottom of the housing 100. It is understood that the connection between the air duct component 423 and the bracket 330 and the housing 100 ensures the stability of the entire air duct component 423 within the housing 100, thereby ensuring that airflow is directed through the heat-generating element to ensure heat dissipation. Further optionally, the air duct component 423 is connected to the bracket 330 and the support structure by screws. Of course, in other embodiments of this utility model, the air duct component 423 can also be connected to the bracket 330 and the support structure by other connection methods such as snap-fit.

[0045] Optional, see reference Figure 2 and Figure 8As shown, the outer casing 100 includes a first casing 110 and a second casing 120 spliced ​​along a second direction, and ventilation structures 500 are provided at both ends of the outer casing 100 along a third direction. It is understood that disassembling the outer casing 100 into the spliced ​​first casing 110 and the second casing 120 facilitates assembly, and the ventilation structures 500 at both ends of the outer casing 100 along a third direction allow the heat generated by all the heating elements inside the outer casing 100 to be dissipated to the outside relatively quickly through the ventilation structures 500 during actual operation, thereby ensuring that the energy storage power supply maintains a suitable temperature during operation.

[0046] Optionally, the first housing 110 is provided with a first insertion portion extending along the second direction, and the second housing 120 is provided with a second insertion portion extending along the second direction, wherein the first insertion portion can be inserted into the second insertion portion. It is understood that the first housing 110 and the second housing 120 are connected via the first and second insertion portions, facilitating assembly and disassembly while improving the connection stability of the first housing 110 and the second housing 120. Of course, in other embodiments of this utility model, the first housing 110 and the second housing 120 can also be connected by screws, snap-fit ​​connections, or other methods.

[0047] Optional, see reference Figure 2 and Figure 7 As shown, both ends of the first housing 110 and the second housing 120 along the second direction are provided with a first half-hole 111 and a second half-hole 121, which are joined together to form a mounting hole. The ventilation structure 500 includes ventilation louvers 510 installed in the mounting hole. It is understood that the ventilation structure 500, including the ventilation louvers 510 installed in the mounting hole, allows the heat generated by all the heating elements inside the housing 100 to be dissipated to the outside relatively quickly through the ventilation structure 500 during actual operation, thereby ensuring that the energy storage power supply maintains a suitable temperature during operation. In embodiments of this invention, the opening area of ​​the ventilation louvers 510 must match the heat dissipation requirements.

[0048] Optionally, the ventilation structure 500 also includes a handle 520, thereby facilitating the transport of the energy storage power source.

[0049] The energy storage power supply in this embodiment has the following advantages:

[0050] First: Effectively reduces the surface temperature of the casing by 100°C, improving the user experience;

[0051] Second: Multiple heat insulation designs prevent the battery module 200 from overheating, extend the lifespan of the individual battery 220, and improve system safety.

[0052] Third: Differentiated heat dissipation solutions are adopted for different heat sources, which helps to ensure good heat dissipation for BMS module 300 and MPPT control module 400;

[0053] Fourth: Reducing the overall size of the device is beneficial for the miniaturization design of energy storage power supplies.

[0054] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An energy storage power source, characterized in that, include: The outer casing is provided with a ventilation structure; A battery module, wherein the battery module is disposed within the housing; The BMS module is disposed inside the housing and located above the battery module along a first direction, and spaced apart from the battery module. The BMS module includes a first control board and a heat sink, the heat sink is mounted on the first control board and thermally coupled to the first control board, and the heat sink is spaced apart from the top wall of the housing.

2. The energy storage power supply according to claim 1, characterized in that, It also includes an MPPT control module, which is disposed inside the housing and located on one side of the battery module along the second direction. The MPPT control module includes a second control board and a heat dissipation component, which is mounted on the second control board and forms a heat dissipation duct on the side of the battery module.

3. The energy storage power supply according to claim 1, characterized in that, The BMS module also includes a bracket for supporting the first control board; The battery module includes a battery rack and multiple individual batteries supported on the battery rack, with the support bracket spaced apart from the battery rack.

4. The energy storage power supply according to claim 1, characterized in that, The first control board is provided with a first switching transistor group and a second switching transistor group at intervals. The heat sink includes two abutting parts and a connecting part. The two abutting parts abut against the first switching transistor group and the second switching transistor group on the first control board, respectively. The two sides of the connecting part are connected to the abutting parts.

5. The energy storage power supply according to claim 1, characterized in that, The heat sink also includes a fixing part, which has a first fixing hole, and the first control plate has a second fixing hole. The fixing member passes through the first fixing hole and the second fixing hole to fix the heat sink to the first control plate.

6. The energy storage power supply according to claim 2, characterized in that, The second control board is provided with a third switching transistor, and the heat dissipation assembly includes: A heat sink, which is mounted on the second control board and thermally coupled to the third switching transistor; A cooling fan is located at one end of the radiator along a third direction; A duct component is provided, which covers the radiator and the cooling fan and is connected to the outer casing. The sidewall of the duct component is spaced apart from the second control board to form the cooling duct.

7. The energy storage power supply according to claim 6, characterized in that, The upper end of the air duct component along the first direction is connected to the bracket of the BMS module, and the lower end of the air duct component along the first direction is connected to the support structure provided at the bottom of the housing.

8. The energy storage power supply according to any one of claims 1-7, characterized in that, The outer casing includes a first casing and a second casing spliced ​​together along a second direction, and the ventilation structure is provided at both ends of the outer casing along a third direction.

9. The energy storage power supply according to claim 8, characterized in that, The first housing is provided with a first plug-in portion extending along the second direction, and the second housing is provided with a second plug-in portion extending along the second direction, wherein the first plug-in portion can be plugged into the second plug-in portion.

10. The energy storage power supply according to claim 9, characterized in that, Both the first housing and the second housing have a first half-hole and a second half-hole at both ends along the second direction. The first half-hole and the second half-hole are joined together to form a mounting hole. The ventilation structure includes ventilation louvers installed in the mounting hole.

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