High-power lithium battery charger

Abstract

The utility model belongs to the technical field of chargers, and particularly relates to a high-power lithium battery charger which comprises a shell and a protection assembly arranged on the shell, and a circuit board is arranged in the shell. The protection assembly comprises a heat dissipation mechanism installed on the top of the shell and a buffer mechanism connected to the lower portion of the heat dissipation mechanism. The heat dissipation mechanism comprises a heat dissipation plate installed on the top of the shell, a material storage plate arranged at the bottom of the heat dissipation plate, heat dissipation fins fixed to the top of the heat dissipation plate and a material injection pipe connected to the inner side of the material storage plate. According to the utility model, through the protection assembly, cooling liquid can be injected into the material storage plate through the liquid injection port, the pressing and fixing plate extends to abut against the outer side of the protection net under the action of pressure, the circuit board is fixed, during charging, heat generated by the circuit board is absorbed by the cooling liquid in the pressing and fixing plate and then is transmitted to the heat dissipation plate, and heat dissipation is carried out in cooperation with the heat dissipation fins; therefore, the problem that potential safety hazards are caused after external substances enter is solved.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, specifically a high-power lithium battery charger. Background Technology

[0002] A lithium battery charger is a charger specifically designed to charge lithium-ion batteries. Lithium-ion batteries have high requirements for chargers and require protection circuits. Therefore, lithium battery chargers usually have high control precision and can perform constant current and constant voltage charging of lithium-ion batteries.

[0003] With the continuous development of lithium battery technology, high-power lithium batteries are being used more and more widely in fields such as power tools and electric vehicles. However, traditional high-power lithium battery chargers have certain drawbacks in use. For example, using a fan for heat dissipation can easily allow external dust and other debris to enter the charger. Over time, these particles accumulate on the circuit board, affecting heat dissipation and posing a safety hazard. Additionally, using the charger in rainy or snowy weather can easily allow rainwater to blow in from the side, causing charger malfunctions and, in severe cases, fires. Therefore, we have proposed a high-power lithium battery charger. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A high-power lithium battery charger includes: a housing and a protective assembly disposed on the housing, wherein a circuit board is disposed inside the housing; the protective assembly includes a heat dissipation mechanism mounted on the top of the housing and a buffer mechanism connected below the heat dissipation mechanism; the heat dissipation mechanism includes a heat dissipation plate mounted on the top of the housing, a storage plate disposed at the bottom of the heat dissipation plate, heat dissipation fins fixed to the top of the heat dissipation plate, a filling pipe connected to the inner side of the storage plate, a one-way valve mounted on the housing and connected to the filling pipe, a liquid inlet connected to the outer side of the one-way valve, a pressure plate connected to the bottom of the storage plate, a pad fixed to the bottom of the pressure plate, and a protective mesh mounted on the circuit board.

[0007] In a preferred embodiment, the present invention can be further configured as follows: the buffer mechanism includes a first spring fixed to the bottom of the first pad, a second pad connected to the bottom of the first spring, a fixing post installed at the bottom of the housing, a second spring connected to the fixing post, and a connecting block fixed above the second spring and connected to the circuit board.

[0008] In a preferred embodiment, the present invention can be further configured such that a pad is fixed to the inner side of the protective net.

[0009] In a preferred embodiment, the present invention can be further configured such that a heat-conducting groove is formed on the inner side of the heat sink.

[0010] In a preferred embodiment, the present invention can be further configured such that the protective net adopts a plate-type telescopic rod structure.

[0011] In a preferred embodiment, the present invention can be further configured such that the heat dissipation fins are distributed in a U-shape on the outer side of the heat dissipation plate.

[0012] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0013] 1. This utility model uses a protective component to inject coolant into the storage plate through the injection port. Under pressure, the pressure plate extends and presses against the outside of the protective net, thus fixing the circuit board. During charging, the heat generated by the circuit board is absorbed by the coolant in the pressure plate and then transferred to the heat sink, which works in conjunction with the heat sink fins to dissipate heat. This achieves sealed heat dissipation and solves the problem of safety hazards caused by the entry of external substances.

[0014] 2. This utility model uses protective components, spring one and spring two to support and fix the circuit board, thereby giving the circuit board better buffering ability and reducing hard vibration damage caused by the charger when it is bumped or dropped, making it highly practical. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the high-power lithium battery charger of this utility model;

[0016] Figure 2 This is a top view of the high-power lithium battery charger of this utility model.

[0017] Figure label:

[0018] 100. Housing; 110. Circuit board;

[0019] 200. Protective component; 210. Heat sink; 211. Heat conduction groove; 220. Material storage plate; 230. Heat dissipation fins; 240. Injection pipe; 250. One-way valve; 260. Liquid injection port; 270. Pressure plate; 280. Pad one; 290. Protective net; 291. Protective pad;

[0020] 310. Spring 1; 320. Pad 2; 330. Fixing post; 340. Spring 2; 350. Connecting block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0023] The following describes some embodiments of a high-power lithium battery charger provided by this utility model, with reference to the accompanying drawings.

[0024] Combination Figure 1-2 As shown, the present invention provides a high-power lithium battery charger, comprising: a housing 100 and a protective component 200 disposed on the housing 100, wherein a circuit board 110 is disposed inside the housing 100.

[0025] The protective component 200 includes a heat dissipation mechanism installed on the top of the housing 100 and a buffer mechanism connected below the heat dissipation mechanism. The heat dissipation mechanism includes a heat dissipation plate 210 installed on the top of the housing 100, a storage plate 220 disposed at the bottom of the heat dissipation plate 210, heat dissipation fins 230 fixed to the top of the heat dissipation plate 210, an injection pipe 240 connected to the inner side of the storage plate 220, a one-way valve 250 installed on the housing 100 and connected to the injection pipe 240, an injection port 260 connected to the outer side of the one-way valve 250, and a clamping device connected to the bottom of the storage plate 220. The plate 270, the pad 280 fixed to the bottom of the pressure plate 270, and the protective net 290 installed on the circuit board 110, through the protective component 200, allow coolant to be injected into the storage plate 220 through the injection port 260. Under pressure, the pressure plate 270 extends and presses against the outside of the protective net 290, thus fixing the circuit board 110. During charging, the heat generated by the circuit board 110 is absorbed by the coolant in the pressure plate 270 and then transferred to the heat sink 210, which works in conjunction with the heat sink fins 230 to dissipate heat. This achieves sealed heat dissipation, thereby solving the problem of safety hazards caused by the entry of external substances.

[0026] Specifically, the buffer mechanism includes a spring 310 fixed to the bottom of the pad 280, a pad 320 connected to the bottom of the spring 310, a fixing post 330 installed at the bottom of the housing 100, a spring 340 connected inside the fixing post 330, and a connecting block 350 fixed above the spring 340 and connected to the circuit board 110. The spring 310 and the spring 340 can be used to support and fix the circuit board 110, thereby giving the circuit board 110 a good buffering capacity and reducing the hard vibration damage caused by the charger when it is bumped or dropped. It is highly practical.

[0027] Furthermore, a pad 291 is fixed to the inner side of the protective net 290. The pad 291 can make the protective net 290 tightly pressed onto the circuit board 110, thus providing better protection for it.

[0028] On the other hand, a heat conduction groove 211 is provided on the inner side of the heat sink 210. The heat conduction groove 211 can better transfer the heat of the coolant in the storage plate 220 upward, thereby improving the heat dissipation effect.

[0029] It should be noted that the protective net 290 adopts a plate-type telescopic rod structure. While the pressure plate 270 can be used to press the circuit board 110 below the protective net 290, the coolant in the pressure plate 270 dispersed in the housing 100 can also be used to quickly absorb heat, thereby ensuring efficient heat dissipation of the circuit board 110.

[0030] Furthermore, the heat dissipation fins 230 are distributed in a U-shape on the outer side of the heat dissipation plate 210. Multiple sets of U-shaped heat dissipation fins 230 can quickly dissipate the heat in the heat dissipation plate 210 and the storage plate 220, thereby improving the heat dissipation efficiency.

[0031] The working principle and usage process of this utility model are as follows: First, coolant is injected into the storage plate 220 through the injection port 260. Under pressure, the pressure plate 270 extends and presses against the outside of the protective net 290, which fixes the circuit board 110. During charging, the heat generated by the circuit board 110 is absorbed by the coolant in the pressure plate 270 and then transferred to the heat sink 210, which works in conjunction with the heat sink fins 230 to dissipate heat.

[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high power lithium battery charger characterized by, Including: The shell (100) and the protection assembly (200) arranged on the shell (100), the shell (100) is equipped with circuit board (110) in; The protection assembly (200) includes heat dissipation mechanism installed on the top of the shell (100) and the buffer mechanism connected below the heat dissipation mechanism; The heat dissipation mechanism includes the heat dissipation plate (210) installed on the top of the shell (100), the storage plate (220) arranged on the bottom of the heat dissipation plate (210), the heat dissipation fin (230) fixed on the top of the heat dissipation plate (210), the injection pipe (240) connected to the inner side of the storage plate (220), the one-way valve (250) installed on the shell (100) and connected to the injection pipe (240), the liquid injection port (260) connected to the outer side of the one-way valve (250), the pressing plate (270) connected to the bottom of the storage plate (220), the pad one (280) fixed on the bottom of the pressing plate (270) and the protection net (290) installed on the circuit board (110).

2. A high-power lithium battery charger according to claim 1, characterized in that, The buffer mechanism includes spring one (310) fixed on the bottom of the pad one (280), pad two (320) connected to the bottom of the spring one (310), fixed column (330) installed on the bottom of the shell (100), spring two (340) connected to the fixed column (330), connecting block (350) fixed above the spring two (340) and connected with the circuit board (110).

3. A high-power lithium battery charger according to claim 1, characterized in that, The inner side of the protection net (290) is fixed with the protective pad (291).

4. The high-power lithium battery charger according to claim 1, wherein, The inner side of the heat dissipation plate (210) is provided with heat conduction groove (211).

5. A high power lithium battery charger according to claim 1, wherein, The protection net (290) adopts plate type telescopic rod structure.

6. A high power lithium battery charger according to claim 1, wherein, The heat dissipation fin (230) is distributed in the outer side of the heat dissipation plate (210) in the shape of a back.

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