Mobile power supply with heat dissipation function

Abstract

The utility model discloses a mobile power supply with a heat dissipation function, and relates to the technical field of mobile power supplies. The mobile power supply with the heat dissipation function comprises a shell, a circuit board, a liquid cooling heat dissipation assembly and a battery cell, the shell is provided with a containing cavity, an air inlet and an air outlet. The air inlet and the air outlet are communicated with the accommodating cavity; the circuit board is arranged in the accommodating cavity; the liquid cooling heat dissipation assembly is arranged in the containing cavity. The cooling fan is located on one side of the air outlet. The cooling plate abuts against the circuit board. The battery cell is arranged in the containing cavity and electrically connected with the circuit board, the circulating pump and the cooling fan. Air can be blown to the air outlet through the cooling fan so that air in the containing cavity can be exhausted from the air outlet, high-temperature air in the containing cavity can flow out of the containing cavity so as to take away heat, external low-temperature air can enter the containing cavity from the air inlet, air circulation flowing is achieved, and the heat dissipation efficiency is improved. Therefore, the heat dissipation effect on the circuit board is achieved, and the charging and discharging efficiency and the use safety are ensured.

Description

Technical Field

[0001] This utility model relates to the field of mobile power supply technology, and in particular to a mobile power supply with heat dissipation function. Background Technology

[0002] In daily life, there are more and more scenarios where we need to use smartphones. When going out, in order to avoid the phone battery dropping to the point of shutting down, people often carry a power bank as a backup power source for their phones.

[0003] A typical power bank mainly consists of a battery cell and a circuit board. The battery cell stores electrical energy, and the circuit board is electrically connected to the battery cell to control its charging and discharging. However, since various electronic components are usually installed on the circuit board, these components generate a lot of heat when they are working. During long-term use, excessive heat generated by the circuit board will not only affect the stability of the circuit board's operation, but also affect the charging and discharging efficiency and safety of the power bank. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a mobile power supply with heat dissipation function, which can dissipate heat from the circuit board.

[0005] To achieve the above objectives, this utility model provides a portable power bank with heat dissipation function, including a shell with a receiving cavity, an air inlet, and an air outlet; the air inlet and the air outlet are both connected to the receiving cavity; a circuit board is disposed within the receiving cavity; a liquid cooling heat dissipation assembly is disposed within the receiving cavity; the liquid cooling heat dissipation assembly includes a circulation pump, a cooling plate, and a cooling fan; the cooling plate has a liquid channel, a liquid inlet, and a liquid outlet, the liquid channel being located inside the cooling plate and connected to the liquid inlet and the liquid outlet; the circulation pump is connected to the liquid inlet and the liquid outlet; the cooling fan is located on one side of the air outlet; the cooling plate abuts against the circuit board; and a battery cell is disposed within the receiving cavity and electrically connected to the circuit board, the circulation pump, and the cooling fan.

[0006] Furthermore, the cooling plate includes a first plate and a second plate; the first plate is provided with a groove, the liquid inlet and the liquid outlet are both provided on the second plate and are vertically connected, the end face of the first plate with the groove abuts against the second plate to form the liquid channel; the liquid inlet and the liquid outlet are both connected to the groove.

[0007] Furthermore, the cooling plate also includes a connector. The first plate has a first connecting hole, and the second plate has a second connecting hole. The first connecting hole and the second connecting hole are arranged opposite to each other. The connector is detachably inserted through the first connecting hole and the second connecting hole to connect the first plate and the second plate.

[0008] Furthermore, both the cooling fan and the circulation pump are located on the side of the cooling plate away from the circuit board.

[0009] Furthermore, the battery cell is spaced apart from at least a portion of the inner wall of the receiving cavity.

[0010] Furthermore, the air inlet and the air outlet are respectively disposed on the two end faces of the outer casing, and the cooling fan is disposed on one side of the cooling plate and faces the air outlet.

[0011] Furthermore, the liquid channel is configured in a tortuous manner.

[0012] Furthermore, a support is provided on the inner wall of the receiving cavity, the support abuts against the end of the circuit board away from the cooling plate, and the circuit board is spaced apart from at least part of the inner wall of the receiving cavity.

[0013] Furthermore, a positioning post is provided on the inner wall of the receiving cavity, and a positioning hole is provided on the circuit board, with the positioning post passing through the positioning hole.

[0014] Furthermore, it also includes a temperature sensor; the temperature sensor is disposed on one side of the circuit board and electrically connected to the cooling fan; the temperature sensor is used to sense the temperature of the circuit board.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The battery cell can provide power to the circuit board, circulation pump and cooling fan. The cooling plate is in contact with the circuit board, so that the heat dissipated by the circuit board during operation can be conducted to the cooling plate, thereby reducing the temperature of the circuit board and improving the stability of the circuit board operation.

[0017] 2. During use, the heat from the cooling plate can be conducted to the liquid in the liquid channel. Furthermore, the circulation pump is connected to the inlet and outlet of the cooling plate. The circulation pump can drive the liquid in the liquid channel to circulate, thereby improving the efficiency of heat conduction within the cooling plate. This reduces the degree of overheating at the point of contact between the cooling plate and the circuit board, ensuring the efficiency of heat conduction between the cooling plate and the circuit board, and thus ensuring the cooling effect of the cooling plate on the circuit board.

[0018] 3. The high-temperature circuit board and cooling plate can conduct heat to the air inside the housing cavity. The cooling fan is located on one side of the air outlet. The cooling fan can blow air into the air outlet to exhaust the air inside the housing cavity. This allows the high-temperature air inside the housing cavity to flow out of the housing cavity to carry away heat, while the cooler outside air can enter the housing cavity from the air inlet to achieve gas circulation. This achieves a heat dissipation effect on the circuit board and ensures the charging and discharging efficiency and safety of the power bank with heat dissipation function. Attached Figure Description

[0019] To more clearly illustrate the technology in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the portable power supply with heat dissipation function according to this utility model;

[0021] Figure 2 This is a schematic diagram of the cooling plate of the portable power bank with heat dissipation function according to this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the first plate of the portable power supply with heat dissipation function according to this utility model;

[0023] Figure 4 This is a cross-sectional view of the portable power bank with heat dissipation function according to this utility model.

[0024] Figure 5 This is a schematic diagram of the liquid cooling heat dissipation component and battery cell of the mobile power supply with heat dissipation function according to this utility model.

[0025] Figure 6 This is a schematic diagram of the liquid cooling heat dissipation component of the mobile power supply with heat dissipation function according to the present invention.

[0026] Figure 7 This is a schematic diagram of the support base and positioning post of the shell of the portable power bank with heat dissipation function according to this utility model.

[0027] Figure label:

[0028] 100 housing; 110 receiving cavity; 120 air inlet; 130 air outlet; 140 support base; 150 positioning post; 200 circuit board; 300 liquid cooling heat dissipation assembly; 310 circulating pump; 320 cooling plate; 321 liquid channel; 322 liquid inlet; 323 liquid outlet; 324 first plate; 325 second plate; 326 groove; 327 first connecting hole; 328 second connecting hole; 330 cooling fan; 400 battery cell. Detailed Implementation

[0029] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0032] Please see Figures 1 to 7 This utility model provides a portable power bank with heat dissipation function, including a housing 100, a circuit board 200, a liquid cooling heat dissipation assembly 300, and a battery cell 400; the housing 100 is provided with a receiving cavity 110, an air inlet 120, and an air outlet 130; both the air inlet 120 and the air outlet 130 are connected to the receiving cavity 110; the circuit board 200 is disposed in the receiving cavity 110; the liquid cooling heat dissipation assembly 300 is disposed in the receiving cavity 110; the liquid cooling heat dissipation assembly 300 includes a circulation pump 310, a cooling plate 320, and a heat dissipation fan. Fan 330; Cooling plate 320 is provided with liquid channel 321, liquid inlet 322 and liquid outlet 323. Liquid channel 321 is located inside cooling plate 320 and is connected to liquid inlet 322 and liquid outlet 323; Circulation pump 310 is connected to liquid inlet 322 and liquid outlet 323; Cooling fan 330 is located on one side of air outlet 130; Cooling plate 320 abuts against circuit board 200; Battery cell 400 is disposed in receiving cavity 110 and is electrically connected to circuit board 200, circulation pump 310 and cooling fan 330.

[0033] The battery cell 400 can provide power to the circuit board 200, the circulation pump 310 and the cooling fan 330. The cooling plate 320 abuts against the circuit board 200, so that the heat dissipated by the circuit board 200 during operation can be conducted to the cooling plate 320, thereby reducing the temperature of the circuit board 200 and improving the stability of the circuit board 200 operation.

[0034] During use, the heat from the cooling plate 320 can be conducted to the liquid in the liquid channel 321. Furthermore, the circulation pump 310 is connected to the liquid inlet 322 and the liquid outlet 323 of the cooling plate 320. The circulation pump 310 can drive the liquid in the liquid channel 321 to circulate, thereby improving the efficiency of heat conduction within the cooling plate 320. This reduces the degree of overheating at the part where the cooling plate 320 and the circuit board 200 are in contact, ensuring the efficiency of heat conduction between the cooling plate 320 and the circuit board 200, and thus ensuring the cooling effect of the cooling plate 320 on the circuit board 200.

[0035] The high-temperature circuit board 200 and cooling plate 320 can conduct heat to the air inside the housing cavity 110. The cooling fan 330 is located on one side of the air outlet 130. The cooling fan 330 can blow air into the air outlet 130 to exhaust the air inside the housing cavity 110 from the air outlet 130, so that the high-temperature air inside the housing cavity 110 flows out of the housing cavity 110 to take away the heat, while the cooler air from the outside can enter the housing cavity 110 from the air inlet 120 to achieve gas circulation, so as to dissipate heat from the circuit board 200 and ensure the charging and discharging efficiency and safety of the mobile power bank with heat dissipation function.

[0036] Reference Figure 2 and Figure 3 In some embodiments of this utility model, the cooling plate 320 includes a first plate 324 and a second plate 325; a groove 326 is provided on the first plate 324, and a liquid inlet 322 and a liquid outlet 323 are both provided on the second plate 325 and are vertically connected. The end face of the first plate 324 with the groove 326 abuts against the second plate 325 to form a liquid channel 321; the liquid inlet 322 and the liquid outlet 323 are both connected to the groove 326.

[0037] The cooling plate 320 is composed of a first plate 324 and a second plate 325. A groove 326 is provided on the upper end surface of the first plate 324. The second plate 325 covers the upper end surface of the first plate 324 to cover the groove 326 and prevent the liquid in the liquid channel 321 from flowing out from the gap between the first plate 324 and the second plate 325.

[0038] The inlet 322 and outlet 323 on the second plate 325 are vertically connected. After the second plate 325 is placed on the first plate 324, the inlet 322 and outlet 323 are both located above the groove 326 and are connected to the groove 326. The circulation pump 310 is connected to the second plate 325 so that it can communicate with the inlet 322 and outlet 323.

[0039] Reference Figure 2 and Figure 3 In some embodiments of this utility model, the cooling plate 320 further includes a connector. The first plate 324 is provided with a first connecting hole 327, and the second plate 325 is provided with a second connecting hole 328. The first connecting hole 327 and the second connecting hole 328 are arranged opposite to each other. The connector is detachably inserted through the first connecting hole 327 and the second connecting hole 328 to connect the first plate 324 and the second plate 325.

[0040] By providing the first connecting hole 327 and the second connecting hole 328, the first plate 324 and the second plate 325 can be connected by a connector, which facilitates the installation and removal of the first plate 324 and the second plate 325.

[0041] Specifically, the first connecting hole 327 and the second connecting hole 328 can be threaded holes, and the connecting holes can be connecting bolts. The connecting bolts are threadedly connected to the first connecting hole 327 and the second connecting hole 328 to fix the position between the first plate 324 and the second plate 325.

[0042] The first connecting hole 327 and the second connecting hole 328 can be provided in multiple ways. The multiple first connecting holes 327 and the multiple second connecting holes 328 are arranged opposite to each other. The multiple connecting members are provided in multiple ways. The multiple connecting members pass through the first connecting holes 327 and the second connecting holes 328. The multiple first connecting holes 327 are distributed at the edge of the first plate 324, and the multiple second connecting holes 328 are distributed at the edge of the second plate 325.

[0043] Reference Figures 4 to 6 In some embodiments of this utility model, the cooling fan 330 and the circulation pump 310 are both located on the side of the cooling plate 320 away from the circuit board 200, so as to reduce the heat received by the circulation pump 310 and the cooling fan 330 from the circuit board 200, thereby avoiding the situation where the circulation pump 310 and the cooling fan 330 cannot work properly due to excessive temperature.

[0044] In some embodiments of this utility model, the battery cell 400 and the receiving cavity 110 are at least partially spaced apart from each other on the inner wall.

[0045] The heat generated by the battery cell 400 during operation and the heat received by the battery cell 400 from the circuit board 200 can be conducted to the air between the battery cell 400 and the inner wall of the housing cavity 110. The air in the housing cavity 110 is then discharged from the air outlet 130 by the cooling fan 330, which carries away the heat and achieves the effect of cooling the battery cell 400, reducing the impact of the battery cell 400 on the charging and discharging efficiency due to excessive temperature.

[0046] Reference Figure 4 In some embodiments of this utility model, the cooling fan 330 is disposed on one side of the cooling plate 320 and faces the air outlet 130, and the air inlet 120 and the air outlet 130 are respectively disposed on the two end faces of the outer casing 100.

[0047] After the cooling fan 330 is started, the gas inside the housing 110 will be discharged from the outlet 130 through the cooling fan 330. The cooling fan 330 is located on one side of the cooling plate 320 to increase the amount of gas passing through the cooling fan 330 and improve the heat dissipation efficiency. In addition, the inlet 120 and the outlet 130 are respectively located on two different end faces of the housing 100 to increase the flow path of the gas flowing in from the inlet 120 in the housing 110 and improve the efficiency of gas circulation in the housing 110.

[0048] Reference Figure 3 In some embodiments of this utility model, the liquid channel 321 is tortuously arranged to extend the path of the liquid channel 321 and improve the heat conduction efficiency.

[0049] The circuit board 200 abuts against the cooling plate 320, and the circuit board 200 conducts heat to the cooling plate 320, causing the temperature of the part of the cooling plate 320 in contact with the circuit board 200 to rise. This heat is then conducted to the part of the cooling plate 320 away from the circuit board 200. The heat from the cooling plate 320 can be conducted to the liquid in the liquid channel 321. The tortuous design of the liquid channel 321 extends its path, allowing it to hold more liquid and improving heat dissipation efficiency. The circulation pump 310 drives the liquid in the liquid channel 321 to circulate, transferring heat to all parts of the cooling plate 320, resulting in a uniform overall temperature of the cooling plate 320. This prevents the cooling plate 320 from becoming too hot due to excessive temperature at the part in contact with the circuit board 200, ensuring efficient heat conduction.

[0050] Specifically, the liquid channel 321 is located in the middle of the cooling plate 320.

[0051] Reference Figure 7In some embodiments of this utility model, a support seat 140 is provided on the inner wall of the receiving cavity 110. The support seat 140 abuts against the end of the circuit board 200 away from the cooling plate 320. The circuit board 200 and at least part of the inner wall of the receiving cavity 110 are spaced apart.

[0052] The support 140 can lift the circuit board 200, so that there is a certain distance between the circuit board 200 and the inner wall of the receiving cavity 110, thereby allowing the circuit board 200 to come into contact with more air and improve the cooling effect.

[0053] Specifically, multiple support bases 140 are provided, and each of them abuts against the portion of the circuit board 200 away from the cooling plate 320, so as to jointly define the position of the circuit board with the cooling plate 320.

[0054] Reference Figure 7 In some embodiments of this utility model, a positioning post 150 is provided on the inner wall of the receiving cavity 110, and a positioning hole is provided on the circuit board 200, with the positioning post 150 passing through the positioning hole.

[0055] By setting the positioning post 150 through the positioning hole on the circuit board 200, the position of the circuit board 200 inside the housing 100 can be pre-positioned, reducing the degree of collision between the circuit board 200 and the inner wall of the receiving cavity 110.

[0056] Specifically, multiple positioning posts 150 can be provided, and multiple positioning holes are also provided on the circuit board 200. Multiple positioning posts 150 are inserted into multiple positioning holes to jointly define the position of the circuit board 200.

[0057] In some embodiments of this utility model, a temperature sensing element is also included; the temperature sensing element is disposed on one side of the circuit board 200 and electrically connected to the cooling fan 330; the temperature sensing element is used to sense the temperature of the circuit board 200.

[0058] The temperature sensor can be electrically connected to the battery cell 400. The temperature sensor is used to sense the temperature of the circuit board 200. When the temperature of the circuit board 200 is higher than or equal to a predetermined value, the temperature sensor starts the cooling fan 330 to dissipate heat. When the temperature of the circuit board 200 is lower than the predetermined value, the temperature sensor drives the cooling fan 330 to stop working, so as to save the power of the battery cell 400.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A portable power bank with heat dissipation function, characterized in that, include: The outer casing (100) is provided with a receiving cavity (110), an air inlet (120) and an air outlet (130); the air inlet (120) and the air outlet (130) are both connected to the receiving cavity (110); A circuit board (200) is disposed within the receiving cavity (110); A liquid cooling heat dissipation assembly (300) is disposed within the receiving cavity (110); the liquid cooling heat dissipation assembly (300) includes a circulation pump (310), a cooling plate (320), and a cooling fan (330); the cooling plate (320) is provided with a liquid channel (321), a liquid inlet (322), and a liquid outlet (323); the liquid channel (321) is located inside the cooling plate (320) and is connected to the liquid inlet (322) and the liquid outlet (323); the circulation pump (310) is connected to the liquid inlet (322) and the liquid outlet (323); the cooling fan (330) is located on one side of the air outlet (130); the cooling plate (320) abuts against the circuit board (200); The battery cell (400) is disposed in the receiving cavity (110) and electrically connected to the circuit board (200), the circulating pump (310) and the cooling fan (330).

2. The portable power bank with heat dissipation function according to claim 1, characterized in that, The cooling plate (320) includes a first plate (324) and a second plate (325); the first plate (324) is provided with a groove (326), the liquid inlet (322) and the liquid outlet (323) are both provided on the second plate (325) and are arranged vertically through each other, the end face of the first plate (324) with the groove (326) abuts against the second plate (325) to form the liquid channel (321); the liquid inlet (322) and the liquid outlet (323) are both connected to the groove (326).

3. The portable power bank with heat dissipation function according to claim 2, characterized in that, The cooling plate (320) also includes a connector. The first plate (324) is provided with a first connecting hole (327), and the second plate (325) is provided with a second connecting hole (328). The first connecting hole (327) and the second connecting hole (328) are arranged opposite to each other. The connector is detachably inserted through the first connecting hole (327) and the second connecting hole (328) to connect the first plate (324) and the second plate (325).

4. The portable power bank with heat dissipation function according to claim 1, characterized in that, The cooling fan (330) and the circulation pump (310) are both located on the side of the cooling plate (320) away from the circuit board (200).

5. The portable power bank with heat dissipation function according to claim 1, characterized in that, The battery cell (400) is spaced apart from at least part of the inner wall of the receiving cavity (110).

6. The portable power bank with heat dissipation function according to claim 1, characterized in that, The air inlet (120) and the air outlet (130) are respectively disposed on the two end faces of the outer shell (100), and the cooling fan (330) is disposed on one side of the cooling plate (320) and facing the air outlet (130).

7. The portable power bank with heat dissipation function according to claim 1, characterized in that, The liquid channel (321) is arranged in a tortuous manner.

8. The portable power bank with heat dissipation function according to claim 1, characterized in that, A support (140) is provided on the inner wall of the receiving cavity (110). The support (140) abuts against the end of the circuit board (200) away from the cooling plate (320). The circuit board (200) is spaced apart from at least part of the inner wall of the receiving cavity (110).

9. The portable power bank with heat dissipation function according to claim 1, characterized in that, A positioning post (150) is provided on the inner wall of the receiving cavity (110), and a positioning hole is provided on the circuit board (200), with the positioning post (150) passing through the positioning hole.

10. The portable power bank with heat dissipation function according to claim 1, characterized in that, It also includes a temperature sensor; the temperature sensor is disposed on one side of the circuit board (200) and electrically connected to the cooling fan (330); the temperature sensor is used to sense the temperature of the circuit board (200).

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