Efficient heat dissipation device, automatic heat dissipation fuse and energy storage system

Abstract

The utility model discloses an efficient heat dissipation device, an autonomous heat dissipation fuse and an energy storage system, and relates to the technical field of energy storage systems. The efficient heat dissipation device comprises a support and a fan. Wherein the support is provided with a flow guide channel, the flow guide channel penetrates through the support, and the peripheral wall of the flow guide channel is provided with an installation part used for being connected with the fuse so that the fuse can be arranged in the first end of the flow guide channel; the fan is arranged on the support, the fan is located at the second end of the flow guide channel and used for driving cooling air flow to flow along the flow guide channel so as to dissipate heat of the fuse, the heat dissipation effect of the fuse can be guaranteed by using the efficient heat dissipation device, and meanwhile, the layout difficulty of the high-voltage box can be reduced.

Description

Technical Field

[0001] This application relates to the field of energy storage system technology, and more specifically, to a high-efficiency heat dissipation device. Furthermore, this application also relates to an autonomous heat dissipation fuse incorporating the aforementioned high-efficiency heat dissipation device. Moreover, this application further relates to an energy storage system incorporating the aforementioned autonomous heat dissipation fuse. Background Technology

[0002] An energy storage system is a system that collects and stores electrical energy. When in use, the energy is extracted and used during peak electricity demand periods, or transported to areas with energy shortages for further use. As the capacity of energy storage systems increases, the current carrying capacity of the components inside the high-voltage box also increases. The increase in current carrying capacity means a greater demand for heat dissipation of the components, especially fuses. The fuse is the component with the highest temperature rise in the entire high-voltage box. Currently, in order to achieve heat dissipation of the fuse and ensure its stable operation, fans are commonly installed in front of the fuse for ventilation or air blowing. However, placing the fan directly in front of the fuse takes up a lot of space, which is not conducive to the layout of components in the high-voltage box.

[0003] In conclusion, how to reduce the layout difficulty of the high-voltage box while ensuring the heat dissipation effect of the fuse is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a high-efficiency heat dissipation device, which can ensure the heat dissipation effect of the fuse and at the same time help to reduce the layout difficulty of the high-voltage box.

[0005] Another objective of this application is to provide an autonomous heat dissipation fuse that includes the aforementioned high-efficiency heat dissipation device.

[0006] Another object of this application is to provide an energy storage system including the aforementioned self-heating fuse.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A high-efficiency heat dissipation device, comprising:

[0009] A bracket having a flow channel extending through the bracket, the peripheral wall of the flow channel having a mounting portion for connecting a fuse, so that the fuse is disposed in the first end of the flow channel;

[0010] A fan is mounted on the bracket and located at the second end of the airflow channel to drive cooling airflow along the airflow channel to dissipate heat from the fuse.

[0011] Preferably, the bracket further includes a guide plate located in the flow channel, and a plurality of the guide plates are arranged along the width direction of the flow channel to divide the flow channel into a plurality of air ducts.

[0012] Preferably, the fan is an exhaust fan, and the bracket also has a flow guide port, which is connected to the middle channel section of the flow guide channel.

[0013] Preferably, the cross-sectional width of the opening at the first end of the flow guide channel is greater than the cross-sectional width of the opening at the second end of the flow guide channel, the air duct is a variable cross-section channel, and the cross-sectional size of the air duct decreases from the second end of the flow guide channel to the first end of the flow guide channel.

[0014] Preferably, the guide plate is spliced ​​and fixed to the bracket along one side of its own width direction, and the guide plate is flipped towards the center position of the second end opening of the guide channel along the other side of its own width direction.

[0015] Preferably, the first end peripheral wall of the flow guiding channel has a positioning groove for inserting the contacts of the fuse.

[0016] Preferably, the bracket includes a first side plate, a second side plate, a third side plate, a fourth side plate, and an end plate;

[0017] The first side plate and the second side plate are both zigzag bent plates, and the third side plate and the fourth side plate are both flat plates. The first side plate and the second side plate are arranged opposite each other, and the third side plate and the fourth side plate are arranged opposite each other. The first side plate, the third side plate, the second side plate and the fourth side plate are sequentially spliced ​​together to form a cylindrical structure.

[0018] The end plate is a square plate, and the end plate is spliced ​​to the first end side of the first side plate, the third side plate, the second side plate and the fourth side plate. The first end of the flow channel is an opening formed by the second ends of the first side plate, the third side plate, the second side plate and the fourth side plate. The second end of the flow channel is a circular hole located in the middle of the end plate.

[0019] One of the flow guide ports is a rectangular hole located in the middle connecting plate of the first side plate, and the other flow guide port is a rectangular hole located in the middle connecting plate of the second side plate;

[0020] One of the positioning grooves is a long strip-shaped groove located on the third side plate, and the other positioning groove is a long strip-shaped groove located on the fourth side plate.

[0021] Preferably, it also includes a temperature detector, the detection end of which abuts against the copper busbar to which the fuse is connected, for detecting the operating temperature of the fuse.

[0022] An independent heat dissipation fuse includes a fuse and a high-efficiency heat dissipation device as described in any of the above claims, wherein the fuse is disposed in the first end of the flow channel.

[0023] An energy storage system includes the aforementioned self-heating fuse.

[0024] In this application, the high-efficiency heat dissipation device is equipped with a bracket, and the bracket adopts an insulating structure to avoid affecting the function of the fuse. The bracket has a flow channel extending laterally inside, and the second end and the first end of the flow channel both penetrate the bracket to form an opening, so that the flow channel can connect to the external environment of the bracket.

[0025] Correspondingly, a fan is installed at the second end opening of the flow channel to drive the gas flow in the flow channel; furthermore, a mounting part is provided on the peripheral wall of the first end of the flow channel. The mounting part can be a snap-fit ​​terminal for fixed connection with a fuse, so that the fuse is placed at the first end opening of the flow channel. The fuse is located on the right side of the bracket. The mounting part creates a gap between the first end of the bracket and the second end of the fuse to allow gas to flow into the flow channel.

[0026] In use, the high-efficiency heat dissipation device is connected to the fuse via the mounting part. After the fuse and / or bracket and / or fan are installed in the designated position, the fan is turned on to drive the airflow along the guide channel to carry away the heat of the fuse, thereby achieving heat dissipation of the fuse. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 A front view of the specific embodiments provided in this application;

[0029] Figure 2 Oblique projection diagrams used in specific embodiments provided in this application;

[0030] Figure 3 Exploded views of specific embodiments provided in this application;

[0031] Figure 4 A front-to-rear oblique view of a specific embodiment provided in this application;

[0032] Figure 5Oblique projection from rear to front for a specific embodiment provided in this application;

[0033] Figure 6 A front view of a specific embodiment provided in this application;

[0034] Figure 7 for Figure 6 Sectional view of AA;

[0035] Figure 8 This is a schematic diagram of the structure of the bracket provided in a specific embodiment of this application;

[0036] Figure 9 Rear view of the bracket in a specific embodiment provided in this application;

[0037] Figure 10 for Figure 9 BB section view.

[0038] Figure label:

[0039] 1-Fuse; 2-Fan; 3-Bracket; 31-Flow guide channel; 32-First side plate; 321-Flow guide port; 33-Second side plate; 34-Third side plate; 341-Positioning groove; 35-Fourth side plate; 36-End plate; 37-Flow guide plate; 4-Copper busbar; 41-Test point. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] The core of this application is to provide a high-efficiency heat dissipation device, which ensures the heat dissipation effect of fuse 1 and reduces the layout complexity of the high-voltage box. Another core aspect of this application is to provide an autonomous heat dissipation fuse incorporating the aforementioned high-efficiency heat dissipation device. Yet another core aspect of this application is to provide an energy storage system incorporating the aforementioned autonomous heat dissipation fuse.

[0042] This application provides a high-efficiency heat dissipation device, including a bracket 3 and a fan 2. The bracket 3 has a flow channel 31 extending through it, and the peripheral wall of the flow channel 31 has a mounting portion for connecting a fuse 1, so that the fuse 1 is disposed in the first end of the flow channel 31. The fan 2 is disposed on the bracket 3 and located at the second end of the flow channel 31, for driving cooling airflow along the flow channel 31 to dissipate heat from the fuse 1.

[0043] For example, in some specific embodiments, such as Figures 3 to 7 As shown, the high-efficiency heat dissipation device is equipped with a bracket 3, and the bracket 3 adopts an insulating structure to avoid affecting the function of the fuse 1. The bracket 3 has a transversely extending guide channel 31 inside, and the left and right ends of the guide channel 31 penetrate the bracket 3 to form an opening, so that the guide channel 31 can connect to the external environment of the bracket 3.

[0044] Correspondingly, fan 2 is installed at the left end opening of the flow channel 31 to drive the gas flow within the flow channel 31; furthermore, as Figure 5 As shown, a mounting part is provided on the peripheral wall of the right end of the flow channel 31. The fuse 1 is located on the right side of the bracket 3. The mounting part creates a gap between the right end of the bracket 3 and the peripheral wall of the fuse 1, allowing gas to flow into the flow channel 31. For example, the mounting part can be a snap-fit ​​terminal for fixed connection with the fuse 1, so that the fuse 1 is placed at the right end opening of the flow channel 31. For example, the fuse 1 is inserted into the right end hole of the flow channel 31, and the mounting part creates a gap between the fuse 1 and the bracket 3, allowing gas to flow into the flow channel 31.

[0045] In use, the high-efficiency heat dissipation device is connected to the fuse 1 via the mounting part. After installing the fuse 1 and / or the bracket 3 and / or the fan 2 in the designated position, the fan 2 is started. In some specific embodiments, the fan 2 draws air from the external environment on the right side of the bracket 3, causing it to flow into and out of the guide channel 31 from right to left. Figure 5 and Figure 7 As shown, or, in some specific embodiments, refer to Figure 5 and Figure 7 As shown, the fan 2 blows the gas in the environment on the left side of the bracket 3, causing it to flow in and out of the guide channel 31 from left to right. In summary, the gas flow carries away the heat of the fuse 1, thereby achieving heat dissipation of the fuse 1.

[0046] Preferred, such as Figure 5 As shown, the mounting part includes several mounting through holes. Each mounting through hole can extend along the axis of the corresponding fixing hole on the existing side of the fuse 1 to insert fasteners to connect the bracket 3 and the fuse 1. In use, after the high-efficiency heat dissipation device is assembled with the fuse 1 through the bracket 3, the two side walls of the right end of the bracket 3 along its own width direction contact and connect with the fuse 1, while there is a gap between one side wall of the right end of the bracket 3 along its own height direction and the fuse 1, or there are gaps between both side walls of the right end of the bracket 3 along its own height direction and the fuse 1, so that gas can flow into the guide channel 31. This arrangement is beneficial for adding a high-efficiency heat dissipation device on the fuse 1 arranged in the existing energy storage system, which is convenient for retrofitting.

[0047] Furthermore, the fuse 1 is installed at the middle height of the right end opening of the flow channel 31 through the mounting part, so that space is left between the upper side wall of the bracket 3 and the upper side of the fuse 1, and between the lower side wall of the bracket 3 and the lower side of the fuse 1, for gas to flow into the flow channel 31.

[0048] To improve the heat dissipation effect of the high-efficiency heat dissipation device on the fuse 1, based on the above embodiment, the bracket 3 also has a guide plate 37, the guide plate 37 is located in the guide channel 31, and a number of guide plates 37 are arranged along the width direction of the guide channel 31 to divide the guide channel 31 into a number of air ducts.

[0049] like Figure 5 , Figures 8 to 10 As shown, a guide plate 37 is fixedly connected to the inner wall of the bracket 3 by welding or integral molding. The guide plate 37 extends along the length of the guide channel 31 to divide the guide channel 31 into several air ducts. The air ducts are channels extending along the length of the guide channel 31. Through the rectification of the guide plate 37, the gas is diverted to the corresponding air duct for smooth flow, which also helps to increase the gas flow speed and improve the heat dissipation efficiency.

[0050] To improve heat dissipation efficiency, based on the above embodiment, fan 2 is an exhaust fan, and bracket 3 also has a guide port 321, which is connected to the middle channel section of guide channel 31.

[0051] Specifically, such as Figures 3 to 5 , Figure 8 As shown, a high-power fan 2 is configured, and a guide port 321 is added on the bracket 3 to cooperate with it. When the fan 2 is turned on, the air can flow out through the left opening of the guide channel 31 and also through the guide port 321, which can drive a larger air volume to flow through the heat sink.

[0052] To further improve the heat dissipation effect, based on the above embodiment, the cross-sectional width of the opening at the first end of the flow channel 31 is greater than the cross-sectional width of the opening at the second end of the flow channel 31. The air duct is a variable cross-section channel, and the cross-sectional size of the air duct is reduced from the second end of the flow channel 31 to the first end of the flow channel 31.

[0053] Specifically, such as Figure 9As shown, to ensure air intake, the right end of the bracket 3 is open as an opening of the guide channel 31, and the diameter of the opening at the left end of the guide channel 31 is approximately equal to the diameter of the fan 2. The opening at the left end of the guide channel 31 is smaller than the opening at the right end of the guide channel 31. Correspondingly, the guide plate 37 is inclined, that is, the guide plate 37 and the guide channel 31 have a non-zero angle in the length direction. Specifically, the distance between adjacent guide plates 37 at the left end of the guide channel 31 is smaller than the distance at the right end of the guide channel 31, so that after receiving the gas flowing into the guide channel 31, the gas can be guided to flow smoothly out of the guide channel 31.

[0054] To further improve the heat dissipation effect, based on the above embodiment, the guide plate 37 is spliced ​​and fixed to the bracket 3 along one side of its own width direction, and the guide plate 37 is flipped towards the center position of the second end opening near the guide channel 31 along the other side of its own width direction.

[0055] Specifically, such as Figure 10 As shown, the guide plate 37 is connected to the bracket 3 by one side of itself, while the other side of the guide plate 37 located to the left of the center line of the guide channel 31 is deflected to the right, and the other side of the guide plate 37 located to the right of the center line of the guide channel 31 is deflected to the left, thereby further improving the diversion effect.

[0056] To meet both installation requirements and the electrical connection requirements of the fuse 1, based on the above embodiment, the first end peripheral wall of the flow channel 31 has a positioning groove 341 for inserting the contacts of the fuse 1.

[0057] Specifically, such as Figure 5 and Figure 8 As shown, elongated positioning grooves 341 are provided on both sides of the right end of the bracket 3 along its width direction. During assembly, when the fuse 1 is placed at the right end opening of the flow channel 31, the lower left contact of the fuse 1 is inserted into the left positioning groove 341 along the depth of the positioning groove 341. Similarly, the upper right contact of the fuse 1 is inserted into the right positioning groove 341 along the depth of the positioning groove 341, so that the two contacts of the fuse 1 can be connected to conductive structures such as copper busbars 4 respectively.

[0058] To simplify the structure and reduce weight, based on the above embodiment, the bracket 3 includes a first side plate 32, a second side plate 33, a third side plate 34, a fourth side plate 35, and an end plate 36. The first side plate 32 and the second side plate 33 are both zigzag bent plates, while the third side plate 34 and the fourth side plate 35 are both flat plates. The first side plate 32 and the second side plate 33 are arranged opposite each other, and the third side plate 34 and the fourth side plate 35 are arranged opposite each other. The first side plate 32, the third side plate 34, the second side plate 33, and the fourth side plate 35 are sequentially spliced ​​together to form a cylindrical structure. The end plate 36 is a square plate, and the end plate 36 is spliced ​​to the first side plate 32, the second side plate 33, the third side plate 34, the fourth side plate 35, and the end plate 36. The first end of the three side plates 34, the second side plate 33, and the fourth side plate 35; the first end of the flow channel 31 is an opening formed by the second ends of the first side plate 32, the third side plate 34, the second side plate 33, and the fourth side plate 35; the second end of the flow channel 31 is a circular hole located in the middle of the end plate 36; one flow port 321 is a rectangular hole in the middle connecting plate of the first side plate 32, and another flow port 321 is a rectangular hole in the middle connecting plate of the second side plate 33; one positioning groove 341 is an elongated groove in the third side plate 34, and another positioning groove 341 is an elongated groove in the fourth side plate 35.

[0059] Specifically, such as Figure 5 and Figure 8 As shown, both the first side plate 32 and the second side plate 33 are zigzag bent plates. Specifically, both the first side plate 32 and the second side plate 33 include a first flat plate, a second flat plate, and a connecting plate. The first flat plate and the second flat plate are arranged parallel to each other. The connecting plate splices and connects the opposite sides of the first flat plate and the second flat plate. The first side plate 32 and the second side plate 33 are arranged vertically opposite to each other. The third side plate 34 and the fourth side plate 35, which are flat plates, are arranged horizontally opposite to each other. The first side plate 32 on the upper left, the third side plate 34 on the upper right, the second side plate 33 on the lower right, and the fourth side plate 35 on the lower left are spliced ​​and fixedly connected in sequence to form a square tube structure. A square end plate 36 is spliced ​​at the left end of the square tube structure.

[0060] In conjunction with the above embodiments, such as Figure 8 As shown, the right end of the square tube structure is open, serving as the right end opening of the flow channel 31. A circular hole is provided on the end plate 36, serving as the left end opening of the flow channel 31. One flow port 321 is provided on the middle connecting plate of the first side plate 32 on the upper left side, and another flow port 321 is provided on the middle connecting plate of the second side plate 33 on the lower right side. The flow port 321 is a rectangular through hole. One positioning groove 341 is provided on the right side of the fourth side wall, and another positioning groove 341 is provided on the right side of the third side wall.

[0061] To ensure heat dissipation while reducing power consumption, in addition to the above embodiment, a temperature detector is also included. The detection end of the temperature detector is abutted against the copper busbar 4 connected to the fuse 1 to detect the operating temperature of the fuse 1.

[0062] like Figure 1 and Figure 2 As shown, this high-efficiency heat dissipation device is equipped with a temperature detector, such as a temperature sensor or a multi-functional sensor, and the detection head of the temperature detector is in contact with the conductive structure of the copper busbar 4 connected to the fuse 1. For example, a part of the insulating varnish is removed from the copper busbar 4 to form a test point 41, and the detection head of the temperature detector is in contact with the test point 41 to indirectly obtain the temperature of the fuse 1 when it is working. In use, the start and stop of the fan 2 can be controlled according to the detection result of the temperature detector.

[0063] Furthermore, the main controller of the high-pressure box is connected to the temperature detector and fan 2 to control the start and stop of fan 2 based on the detection results of the temperature detector.

[0064] In addition to the aforementioned high-efficiency heat dissipation device, this application also provides an autonomous heat dissipation fuse that includes the high-efficiency heat dissipation device disclosed in the above embodiments. This autonomous heat dissipation fuse further includes a fuse 1, which is disposed at the first end of the flow channel 31. Figure 4 and Figure 5 As shown.

[0065] In addition to the aforementioned high-efficiency heat dissipation device and autonomous heat dissipation fuse, this application also provides an energy storage system including the autonomous heat dissipation fuse disclosed in the above embodiments. The structure of other parts of the energy storage system can be found in the prior art, and will not be described in detail here.

[0066] Furthermore, such as Figure 2 The fuse 1 is installed above the electrical mounting plate, and there is a wiring channel between the fan 2 and the bracket 3 and the mounting plate, that is, the fan 2 and the bracket 3 are suspended above the electrical mounting plate to facilitate wiring.

[0067] It should be noted that the relational terms such as "first" and "second" mentioned above are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities; the terms "top" and "bottom" and the directional terms "up," "down," "left," and "right" mentioned above are defined based on the accompanying drawings in the specification.

[0068] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0069] The high-efficiency heat dissipation device, self-heating fuse, and energy storage system provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A high-efficiency heat dissipation device, characterized in that, include: The bracket (3) has a flow channel (31) that extends through the bracket (3). The peripheral wall of the flow channel (31) has a mounting part for connecting a fuse (1) so that the fuse (1) is placed in the first end of the flow channel (31). A fan (2) is provided on the bracket (3) and the fan (2) is located at the second end of the guide channel (31) for driving cooling airflow along the guide channel (31) to dissipate heat from the fuse (1).

2. The high-efficiency heat dissipation device according to claim 1, characterized in that, The bracket (3) also has a guide plate (37) located in the guide channel (31), and a plurality of the guide plates (37) are arranged along the width direction of the guide channel (31) to divide the guide channel (31) into a plurality of air ducts.

3. The high-efficiency heat dissipation device according to claim 2, characterized in that, The fan (2) is an exhaust fan (2), and the bracket (3) also has a guide port (321), which is connected to the middle channel section of the guide channel (31).

4. The high-efficiency heat dissipation device according to claim 3, characterized in that, The cross-sectional width of the first end opening of the flow guide channel (31) is greater than the cross-sectional width of the second end opening of the flow guide channel (31). The air duct is a variable cross-section channel, and the cross-sectional size of the air duct is reduced from the second end of the flow guide channel (31) to the first end of the flow guide channel (31).

5. The high-efficiency heat dissipation device according to claim 4, characterized in that, The guide plate (37) is spliced ​​and fixed to the bracket (3) along one side of its own width direction, and the guide plate (37) is flipped towards the center position of the second end opening near the guide channel (31) along the other side of its own width direction.

6. The high-efficiency heat dissipation device according to claim 3, characterized in that, The first end peripheral wall of the flow channel (31) has a positioning groove (341) for inserting the contact of the fuse (1).

7. The high-efficiency heat dissipation device according to claim 6, characterized in that, The bracket (3) includes a first side plate (32), a second side plate (33), a third side plate (34), a fourth side plate (35), and an end plate (36). The first side plate (32) and the second side plate (33) are both zigzag bent plates, and the third side plate (34) and the fourth side plate (35) are both flat plates. The first side plate (32) and the second side plate (33) are arranged opposite to each other, and the third side plate (34) and the fourth side plate (35) are arranged opposite to each other. The first side plate (32), the third side plate (34), the second side plate (33) and the fourth side plate (35) are sequentially spliced ​​together to form a cylindrical structure. The end plate (36) is a square plate, and the end plate (36) is spliced ​​to the first side edge of the first side plate (32), the third side plate (34), the second side plate (33) and the fourth side plate (35). The first end of the flow channel (31) is an opening formed by the second ends of the first side plate (32), the third side plate (34), the second side plate (33) and the fourth side plate (35). The second end of the flow channel (31) is a circular hole located in the middle of the end plate (36). One of the flow guide ports (321) is a rectangular hole located in the middle connecting plate of the first side plate (32), and the other flow guide port (321) is a rectangular hole located in the middle connecting plate of the second side plate (33). One of the positioning grooves (341) is a long strip groove located on the third side plate (34), and the other positioning groove (341) is a long strip groove located on the fourth side plate (35).

8. The high-efficiency heat dissipation device according to claim 1, characterized in that, It also includes a temperature detector, the detection end of which is abutted against the copper busbar (4) connected to the fuse (1) to detect the operating temperature of the fuse (1).

9. A self-heating fuse, comprising a fuse (1), characterized in that, It also includes the high-efficiency heat dissipation device according to any one of claims 1-8, wherein the fuse (1) is disposed in the first end of the flow channel (31).

10. An energy storage system, characterized in that, Including the self-heating fuse as described in claim 9 above.

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