Heat dissipation structure of energy storage power supply

Abstract

The utility model discloses energy storage power supply's heat dissipation structure, including casing, baffle, the baffle divides the casing and is separated into the first, second chamber of relatively independent, and the first chamber contains the heating electrical module, is equipped with the air outlet in the first chamber one side, and the second chamber opposite two sides are equipped with the air inlet, is equipped with the heat dissipation fan on the baffle, and the air inlet air enters the second chamber and exchanges heat with the heating electrical module and forms the hot air, and the hot air temperature rises and rises, and the heat dissipation fan blows the hot air of second chamber heat exchange to the first chamber again and discharges from the air outlet, thereby the hot air in the second chamber is forced to discharge and forms the negative pressure, and the air inlet continues to air, and like this, the first chamber forms the positive air pressure chamber, and the second chamber forms the negative air pressure chamber, realizes forcibly convection, reduces the heat dissipation air duct size, and the heat dissipation effect is obvious, solves the problem that small -size outdoor energy storage power supply needs to increase product appearance size even destroys product appearance design to adapt to the conventional heat dissipation structure.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for energy storage power supplies, and in particular to a heat dissipation structure for energy storage power supplies. Background Technology

[0002] Currently, the conventional cooling method for outdoor power supplies mostly involves using multiple cooling fans within the same cavity, positioned vertically or horizontally within the cavity. One fan intakes air while another exhausts, creating air convection to dissipate heat from the cavity. This design requires a large airflow channel within the power storage cavity. However, small outdoor power supply products often lack sufficient space for both intake and exhaust fans due to limited space and narrow airflow channels. Adopting conventional cooling methods would necessitate increasing the product's overall dimensions or even altering its design.

[0003] In the Chinese patent "Waterproof and Heat-Dissipating Outdoor Power Supply" with publication number CN117525683A, the battery pack and circuit board are placed in a second mounting cavity. The second mounting cavity includes a first and a second chamber that are interconnected. The heat in the second mounting cavity is dissipated to the first mounting cavity by an internal circulation fan and a main heat sink. Then, the heat in the first mounting cavity is diffused to the outside of the outer shell by a vent and an external circulation fan. The heat dissipation path is long, which reduces the heat dissipation efficiency. Moreover, the aluminum main heat sink has high manufacturing cost, large size, and occupies a large product space. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a heat dissipation structure with a short heat dissipation path, which eliminates the need for a main heat sink and multiple cooling fans inside the energy storage power supply, thereby reducing costs and miniaturizing energy storage products.

[0005] The objective of this utility model is achieved through the following technical solution: A heat dissipation structure for an energy storage power supply includes a housing and a partition. The partition divides the interior of the housing into two relatively independent chambers: a first chamber housing a heat-generating electrical module, an air outlet on one side of the first chamber, and air inlets on opposite sides of the second chamber. A cooling fan is mounted on the partition. Air entering the second chamber through the air inlets exchanges heat with the heat-generating electrical module to form hot air, which then rises in temperature. The cooling fan blows the hot air from the second chamber back to the first chamber and then exhausts it through the air outlet, thus forcibly expelling the hot air from the second chamber and creating a negative pressure. Air continues to enter through the air inlets.

[0006] In one specific embodiment, the heat-generating electrical module includes a battery pack, a PCBA board assembly, and an inverter, with the PCBA board assembly and the inverter mounted on an outer side of the battery pack.

[0007] In one specific embodiment, the housing includes an upper housing and a lower housing. The bottom of the lower housing is provided with a mounting position, and the heating electrical module is positioned and fixed on the mounting position. The upper housing and the lower housing are covered.

[0008] In one specific embodiment, the partition includes a protrusion and a mounting portion connecting both sides of the protrusion. The protrusion is provided with a mounting position for mounting a cooling fan, and the vertical projection dimension of the partition matches the vertical projection dimension of the inner side of the upper housing.

[0009] In one specific embodiment, the lower four corners of the inner side of the upper housing are provided with locking blocks, and the mounting portions on both sides of the partition are provided with corresponding locking holes, and the locking blocks engage with the locking holes.

[0010] In one specific embodiment, the heating electrical module is provided with mounting ears on both sides of its top, and the mounting portions on both sides of the partition are connected to the mounting ears.

[0011] In one specific embodiment, a socket, a slot, and a display device are installed in the first cavity. The side of the upper housing is provided with an installation port for installing the socket and slot. The top inner surface of the upper housing is provided with a positioning snap-fit ​​post for positioning and snap-fitting the display device.

[0012] In one specific embodiment, a thermal overload protector is also installed inside the upper housing.

[0013] In one specific embodiment, the upper housing is provided with a top cover, the top cover is provided with a handle structure and a viewing window, the handle structure is located near one side of the upper housing, and the viewing window is located at the position corresponding to the display device.

[0014] In one specific embodiment, the air inlet and air outlet are multiple rounded elongated holes penetrating the surface of the housing. The rounded elongated holes are arranged at an angle and are parallel and evenly distributed.

[0015] This invention's energy storage power supply heat dissipation structure divides the entire cavity of the power supply product into two relatively independent chambers using a partition. A cooling fan on the partition dissipates heat from the second chamber into the first chamber, creating a positive pressure chamber in the first chamber and a negative pressure chamber in the second chamber. This forced convection reduces the size of the heat dissipation duct, thereby reducing the overall size of the product and significantly improving heat dissipation. It solves the problem of needing to increase the size of small outdoor energy storage power supplies, or even compromise the product's design, to accommodate conventional heat dissipation structures. Compared to traditional heat dissipation structures, this energy storage power supply eliminates the need for a main heat sink and multiple cooling fans, effectively saving space and reducing product costs. Furthermore, the partition structure can be flexibly adjusted according to heat dissipation requirements and the internal structure of the energy storage power supply product; the structure is simple and easy to implement. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the energy storage power source; Figure 2 This is a schematic diagram of the heat dissipation structure of the energy storage power supply. Figure 3 An exploded view of an energy storage power source; Figure 4 This is a three-dimensional view of the partition. Figure 5 This is a three-dimensional view of the upper shell. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "upper," "lower," "first," "second," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] See Figure 1 , Figure 2An embodiment of the heat dissipation structure of the energy storage power supply includes a shell and a partition 20. The partition 20 divides the interior of the shell into relatively independent first and second chambers 21 and 22. The first chamber 21 houses a heat-generating electrical module 30. An air outlet 211 is provided on one side of the first chamber 21. Air inlets 221 are provided on opposite sides of the second chamber 22. A cooling fan 34 is provided on the partition 20. The air intake through the air inlet 221 enters the second chamber 22 and exchanges heat with the heat-generating electrical module 30 to form hot air. The temperature of the hot air rises. The cooling fan 34 blows the hot air after heat exchange in the second chamber 22 towards the first chamber 21 and then exhausts it from the air outlet 211. Thus, the hot air in the second chamber 22 is forced out to form a negative pressure, and the air inlet 221 continues to intake air.

[0022] In the aforementioned heat dissipation structure of the energy storage power supply, the heat-generating electrical module 30 includes heat-generating components such as a battery pack 31, a PCBA board assembly 32, and an inverter 33. The PCBA board assembly 32 and the inverter 33 are mounted on an outer side of the battery pack 31. In other words, the heat-generating electrical module 30, which integrates all the main heat-generating components into one unit, is housed in the second chamber 22. A partition 20 divides the interior of the housing into relatively independent first and second chambers 21 and 22. When the cooling fan 34 on the partition 20 runs, it directs heat to the second chamber 22, where the heat-generating electrical module is housed, at the lower part of the housing. The intake of air in the second chamber 22 reduces the air density, creating a negative pressure chamber. This allows the cooling fan 34 to operate continuously, and cool air from the natural atmosphere continuously enters the second chamber 22 at the bottom of the casing. The cool air exchanges heat with the heat generated by the electrical module 30, forming hot air. The cooling fan 34 blows the hot air from the second chamber 22 into the first chamber 21, increasing the air sealing pressure in the first chamber 21. The air outlet 211 in the first chamber 21 forces the hot air out into the natural atmosphere, forming a heat dissipation cycle.

[0023] When the cooling fan 34 is running, the airflow direction is upward, and the hot air rises. The two directions are consistent, with air intake at the bottom and air exhaust at the top, which effectively simplifies the heat dissipation system. Compared with the heat dissipation structure of existing energy storage products, it can effectively reduce the air duct required for heat dissipation while improving heat dissipation efficiency. Moreover, this structure allows natural air to directly enter the electrical heating module for heat exchange. By using partition 20 and a cooling fan 34, hot air can be forcibly exhausted. The overall heat dissipation path is short, and there is no need to set up a main heat sink and multiple cooling fans inside the energy storage power supply, which effectively saves space and product costs.

[0024] refer to Figures 3 to 5In one specific implementation, the housing adopts an upper housing 11 and a lower housing 12 connected together. The bottom of the lower housing 12 is provided with a mounting position, and the heating electrical module 30 is positioned and fixed at the mounting position. The upper housing 11 and the lower housing 12 are covered. The vertical projection size of the partition 20 matches the vertical projection size of the inner side of the upper housing 11. The partition 20 includes a protrusion 201 and a mounting part 202 connecting the two sides of the protrusion. A cooling fan 34 is mounted on the protrusion 201 with a mounting position. The top two sides of the heating electrical module 30 are provided with mounting ears 301. The mounting parts 202 on both sides of the partition are connected to the mounting ears 301. The lower four corners of the inner side of the upper housing 11 are provided with locking blocks 111. The mounting parts 202 on both sides of the partition are provided with corresponding locking holes 203. The locking blocks 111 are engaged with the locking holes 203.

[0025] That is, the partition 20 is installed on the top of the heating electrical module 30, the bottom of the heating electrical module 30 is positioned and installed on the lower housing 12, the lower part of the upper housing 11 is snapped with the partition 30 and covers the lower housing 12, so that the partition 20 divides the housing into two independent chambers, the upper part of the partition 20 is the first chamber 21, the lower part of the partition 20 is the second chamber 22, and the heating electrical module 30 is housed in the lower housing 12.

[0026] To further improve the stability of the connection, multiple connecting legs 204 can be provided on each of the opposite sides of the partition 20. The lower end of the connecting leg 204 is provided with a male buckle, and the lower housing is provided with a corresponding female buckle. The connection with the lower housing 12 is achieved by the engagement of the male and female buckles, so that the upper housing 11 of the connecting partition 20 can be more securely covered on the lower housing 12.

[0027] The first chamber 21 is equipped with a socket 41, a slot 42, and a display device 43. The upper housing 11 has an installation port on its side for installing the socket 41 and the slot 42. The upper housing 11 has a positioning snap-fit ​​post 431 on its inner top surface for positioning and snap-fitting the display device 43. The display device 43 is used to display information such as the remaining power of the power supply, input and output power, and working status, to help users better manage and use the power supply.

[0028] To further improve the safety of the energy storage power supply, a thermal overload protector 44 is also installed inside the upper casing 11. Based on the size of the circuit load, it determines whether the circuit needs to be cut off by measuring changes in current and temperature, thereby preventing electrical products from overheating and causing accidents such as fires.

[0029] To facilitate operation and monitoring of the energy storage power supply, the upper housing 11 is equipped with a top cover. The top cover has a handle structure 13 and a viewing window 14. The handle structure 13 is located near the side of the upper housing 11, which allows the top cover to be easily pulled up, facilitating the wiring, maintenance, and replacement of the internal cooling fan 34 and other components in the first chamber. The viewing window is located at the position of the corresponding display device 43, so that the display content on the display device 43 can be observed at any time, and the energy storage power supply can be managed.

[0030] The above-mentioned handle structure adopts a handle groove and a handle installed on the handle groove. The hand can be inserted into the handle groove to pull up the handle and open the top cover. Furthermore, other existing handle structures can be adopted, such as a push-button handle, which can be used to pull up the top cover by pressing.

[0031] To further optimize airflow distribution and improve ventilation efficiency, the air inlet 221 and air outlet 211 are multiple rounded elongated holes that penetrate the surface of the casing. The rounded elongated holes are arranged at an angle and are parallel and evenly distributed. The design of the rounded elongated holes helps to reduce wind resistance and make the airflow smoother. The parallel, angled and evenly distributed holes can ensure that the airflow is evenly distributed on the surface of the casing, better guide the direction of the airflow, and avoid local airflow that is too strong or too weak. This allows hot air to flow in and out along a predetermined path, thereby improving the targeting and efficiency of heat dissipation.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heat dissipation structure for an energy storage power supply, characterized in that, The device includes a housing and a partition. The partition divides the interior of the housing into two relatively independent chambers: a first chamber and a second chamber. The first chamber houses a heating electrical module. An air outlet is located on one side of the first chamber, and air inlets are located on opposite sides of the second chamber. A cooling fan is mounted on the partition. Air entering the second chamber through the air inlets exchanges heat with the heating electrical module to form hot air, which then rises in temperature. The cooling fan blows the hot air from the second chamber back to the first chamber and then exhausts it through the air outlet, thus forcibly expelling the hot air from the second chamber and creating a negative pressure. Air continues to enter through the air inlets.

2. The heat dissipation structure of the energy storage power supply according to claim 1, characterized in that, The heat-generating electrical module includes a battery pack, a PCBA board assembly, and an inverter. The PCBA board assembly and the inverter are mounted on an outer side of the battery pack.

3. The heat dissipation structure of the energy storage power supply according to claim 1, characterized in that, The housing includes an upper housing and a lower housing. The lower housing has a mounting position at its bottom, and the heating electrical module is fixedly mounted on the mounting position at its bottom. The upper housing and the lower housing are covered together.

4. The heat dissipation structure of the energy storage power supply according to claim 3, characterized in that, The partition includes a protrusion and a mounting portion connecting the two sides of the protrusion. The protrusion is provided with a mounting position for mounting a cooling fan. The vertical projection dimension of the partition matches the vertical projection dimension of the inner side of the upper housing.

5. The heat dissipation structure of the energy storage power supply according to claim 4, characterized in that, The lower inner side of the upper housing is provided with four corners with locking blocks, and the mounting parts on both sides of the partition are provided with corresponding locking holes, and the locking blocks are engaged with the locking holes.

6. The heat dissipation structure of the energy storage power supply according to claim 5, characterized in that, The heating electrical module has mounting ears on both sides of its top, and the mounting part is connected to the mounting ears.

7. The heat dissipation structure of the energy storage power supply according to claim 6, characterized in that, The first chamber is equipped with a socket, a slot, and a display device. The side of the upper housing is provided with an installation port for installing the socket and slot. The top inner surface of the upper housing is provided with a positioning snap-fit ​​post for positioning and snap-fitting the display device.

8. The heat dissipation structure of the energy storage power supply according to claim 7, characterized in that, A thermal overload protector is also installed inside the upper housing.

9. The heat dissipation structure of the energy storage power supply according to claim 7, characterized in that, The upper housing is provided with a top cover, the top cover is provided with a handle structure and a viewing window, the handle structure is located near one side of the upper housing, and the viewing window is located at the position corresponding to the display device.

10. The heat dissipation structure of the energy storage power supply according to claim 1, characterized in that, The air inlet and air outlet are multiple rounded elongated holes that penetrate the surface of the housing. The rounded elongated holes are arranged at an angle and are parallel and evenly distributed.

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