Anti-overheating adjusting device of energy storage lithium battery

Abstract

The utility model provides an anti-overheating adjusting device of an energy storage lithium battery, which belongs to the technical field of lithium battery anti-overheating, and comprises an energy storage box and a battery block connected inside the energy storage box, two side walls of the energy storage box are provided with ventilation slots, and the bottom wall of the energy storage box is provided with heat dissipation slots. The bottom wall of the energy storage box is connected with a cooling component used for improving the heat dissipation efficiency of the battery block, the cooling component comprises a heat dissipation box slidably connected to the bottom wall of the energy storage box, uniformly distributed heat dissipation fans are fixedly connected in the heat dissipation box, and the side wall of the energy storage box is connected with a driving assembly used for driving the heat dissipation box to reciprocate; and the two sets of driving assemblies are symmetrically arranged about the central axis of the energy storage box, the side wall of the ventilation groove is connected with a ventilation expansion part used for automatically adjusting ventilation according to the temperature of the battery block, the cooling efficiency of the battery block can be further improved through the heat dissipation box, and meanwhile, under the action of the ventilation expansion part, the device can adapt to different use environments conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery overheating prevention, in particular to an overheating prevention regulating device for an energy storage lithium battery. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and a non-aqueous electrolyte solution. The stored energy can be used as emergency energy, or it can be used to store energy when the grid load is low and output energy when the grid load is high.

[0003] After searching, the Chinese patent application number 202222973282.6 discloses an anti-overheating adjustment device for energy storage lithium batteries, which relates to the technical field of lithium battery anti-overheating. In order to solve the existing heat dissipation device, during use, the external fan dissipates heat. As the internal temperature increases, the cold air becomes hot air, which reduces the heat dissipation effect and causes the lithium battery to overheat easily. The utility model includes a protective frame, an energy storage lithium battery pack is arranged in the middle of the protective frame, a positioning support frame is arranged at the corner of the protective frame, and a plurality of positioning support frames are arranged, and a condensation heat dissipation component is arranged on the outside of the energy storage lithium battery pack, and a plurality of condensation heat dissipation components are arranged.

[0004] The above patents have the following deficiencies: 1. When the temperature of the energy storage lithium battery pack rises to a level where heat dissipation is required, although the temperature of the battery can be lowered by using a condensation heat dissipation component, when the temperature is too high, the condensation heat dissipation component is not convenient for quickly dissipating the absorbed heat, thereby affecting the efficiency of the entire heat dissipation process; 2. Since the energy storage lithium battery pack will be affected by extremely cold weather, it is not convenient to adjust the thermal insulation of the energy storage lithium battery pack according to different environments, thereby affecting the maintenance of the lithium battery performance.

[0005] Therefore, there is an urgent need for an anti-overheating regulating device for energy storage lithium batteries to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to address the current problem that when the temperature of an energy storage lithium battery pack rises to a level where heat dissipation is required, although the temperature of the battery can be lowered by using a condensation heat dissipation component, when the temperature is too high, the condensation heat dissipation component is not convenient for quickly dissipating the absorbed heat, thereby affecting the efficiency of the entire heat dissipation process; since the energy storage lithium battery pack will be affected by extremely cold weather, it is not convenient to adjust the thermal insulation of the energy storage lithium battery pack according to different environments, thereby affecting the maintenance of the lithium battery performance.

[0007] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0008] An anti-overheating regulating device for an energy storage lithium battery is provided to improve the above-mentioned problem.

[0009] The specific application is as follows:

[0010] An overheating prevention regulating device for an energy storage lithium battery comprises an energy storage box and a battery block connected to the inside of the energy storage box, both side walls of the energy storage box are provided with ventilation slots, a bottom wall of the energy storage box is provided with a heat dissipation slot, a cooling component for improving the heat dissipation efficiency of the battery block is connected to the bottom wall of the energy storage box, wherein the cooling component comprises a heat dissipation box slidably connected to the bottom wall of the energy storage box, a heat dissipation fan evenly distributed is fixedly connected to the inside of the heat dissipation box, a driving component for driving the heat dissipation box to reciprocate is connected to the side wall of the energy storage box, two groups of the driving components are symmetrically arranged about the central axis of the energy storage box, and a ventilation expansion component for automatically adjusting ventilation according to the temperature of the battery block is connected to the side wall of the ventilation slot.

[0011] As a preferred technical solution of the present application, the driving assembly includes a first rotating wheel rotatably connected to the side wall of the energy storage box, the side wall of the energy storage box is also rotatably connected to the second rotating wheel, the first rotating wheel is transmission-connected to the second rotating wheel through a reciprocating belt, the side wall of the reciprocating belt is fixedly connected to a moving block, the side wall of the heat dissipation box is fixedly connected to a limiting ring, the moving block is slidably connected to the inner wall of the limiting ring, the side wall of the energy storage box is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a connecting rod, and the two groups of the first rotating wheels are fixedly connected by the connecting rod.

[0012] As a preferred technical solution of the present application, the ventilation expansion component includes closed leaves rotatably connected to the side walls of the ventilation slot, and the closed leaves are evenly distributed in several groups along the side walls of the ventilation slot. The side walls of the ventilation slot are slidably connected to a group of linkage frames, and the linkage frames are rotatably connected to the closed leaves.

[0013] As a preferred technical solution of the present application, a servo motor is fixedly connected to the bottom wall of the energy storage box, a transmission rod is fixedly connected to the output end of the servo motor, and the transmission rod is fixedly connected to one group of closed leaves.

[0014] As a preferred technical solution of the present application, a cold circulation box is fixedly connected to the side wall of the energy storage box, and the cold circulation box is communicated with the energy storage box.

[0015] In the scheme of this application:

[0016] 1. The movement of the reciprocating belt can be realized by the first rotating wheel and the second rotating wheel, so that the heat dissipation box can be driven to reciprocate on the bottom wall of the energy storage box, thereby improving the heat dissipation effect, solving the problem in the prior art that when the temperature of the energy storage lithium battery pack rises to a level that requires heat dissipation, although the temperature of the battery can be lowered by using a condensation heat dissipation component, when the temperature is too high, the condensation heat dissipation component is not convenient to quickly dissipate the absorbed heat, thereby affecting the efficiency of the entire heat dissipation process;

[0017] 2. The linkage frame can drive the closed leaves to deflect simultaneously, so that the size of the ventilation slot can be adjusted as needed, which is more applicable and solves the problem in the prior art that the energy storage lithium battery pack will be affected by extremely cold weather, and it is not convenient to adjust the thermal insulation of the energy storage lithium battery pack according to different environments, thereby affecting the maintenance of lithium battery performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the overall structural schematic diagrams of an anti-overheating regulating device for an energy storage lithium battery provided in the present application;

[0019] Figure 2 The second overall structural schematic diagram of an anti-overheating regulating device for an energy storage lithium battery provided in the present application;

[0020] Figure 3 A schematic cross-sectional structure diagram of an anti-overheating regulating device for an energy storage lithium battery provided in the present application;

[0021] Figure 4 A device for preventing overheating of a lithium battery provided in this application Figure 3 A magnified view of the structure in the middle;

[0022] Figure 5 A device for preventing overheating of a lithium battery provided in this application Figure 3 A magnified view of the structure in middle B.

[0023] Indicated in the figure:

[0024] 100. Energy storage box; 101. Battery block; 102. Ventilation slot; 103. Heat dissipation slot; 104. Heat dissipation box; 105. Cooling fan; 110. First rotating wheel; 111. Second rotating wheel; 112. Reciprocating belt; 113. Moving block; 114. Limiting ring; 115. Driving motor; 116. Connecting rod; 120. Closing leaf; 121. Linkage frame; 122. Servo motor; 123. Transmission rod; 130. Cold circulation box. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0026] like Figure 1-3As shown, this embodiment proposes an overheating prevention regulating device for an energy storage lithium battery, comprising an energy storage box 100 and a battery block 101 connected to the inside of the energy storage box 100, ventilation slots 102 are provided on both side walls of the energy storage box 100, a heat dissipation slot 103 is provided on the bottom wall of the energy storage box 100, a cooling component for improving the heat dissipation efficiency of the battery block 101 is connected to the bottom wall of the energy storage box 100, wherein the cooling component comprises a heat dissipation box 104 slidably connected to the bottom wall of the energy storage box 100, a heat dissipation fan 105 evenly distributed is fixedly connected inside the heat dissipation box 104, a driving component for driving the heat dissipation box 104 to reciprocate is connected to the side wall of the energy storage box 100, and two groups of the driving components are symmetrically arranged about the central axis of the energy storage box 100, a ventilation expansion component for automatically adjusting the ventilation according to the temperature of the battery block 101 is connected to the side wall of the ventilation slot 102, and the heat dissipation box 104 reciprocates at the bottom of the energy storage box 100, thereby improving the heat dissipation effect of the battery block 101.

[0027] like Figure 1-4 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, the driving assembly includes a first rotating wheel 110 rotatably connected to the side wall of the energy storage box 100, the side wall of the energy storage box 100 is also rotatably connected to the second rotating wheel 111, the first rotating wheel 110 is transmission-connected to the second rotating wheel 111 through a reciprocating belt 112, the side wall of the reciprocating belt 112 is fixedly connected to a moving block 113, the side wall of the heat dissipation box 104 is fixedly connected to a limiting ring 114, the moving block 113 is slidably connected to the inner wall of the limiting ring 114, the side wall of the energy storage box 100 is fixedly connected to a driving motor 115, the output end of the driving motor 115 is fixedly connected to a connecting rod 116, the two groups of first rotating wheels 110 are fixedly connected through the connecting rod 116, and the notch provided on the inner wall of the reciprocating belt 112 can prevent the reciprocating belt 112 from running off, which is more convenient to use.

[0028] like Figure 1-3 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the ventilation expansion component includes closed leaves 120 rotatably connected to the side walls of the ventilation slot 102, and several groups of closed leaves 120 are evenly distributed along the side walls of the ventilation slot 102. The side walls of the ventilation slot 102 are slidably connected with a group of linkage frames 121, and the linkage frames 121 are rotatably connected to the closed leaves 120. By setting multiple groups of closed leaves 120, the size of the ventilation slot 102 can be adjusted, which is more practical.

[0029] like Figure 1-5 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the bottom wall of the energy storage box 100 is fixedly connected to a servo motor 122, the output end of the servo motor 122 is fixedly connected to a transmission rod 123, the transmission rod 123 is fixedly connected to one group of closed leaves 120, and the deflection of the closed leaves 120 can be driven by the servo motor 122.

[0030] like Figure 1-3 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a cold circulation box 130 is fixedly connected to the side wall of the energy storage box 100, and the cold circulation box 130 is communicated with the energy storage box 100. Through the cold circulation box 130, the cooling rate of the battery block 101 can be further improved under the action of the coolant.

[0031] Specifically, when the overheating prevention regulating device of the energy storage lithium battery is in use: when the heat of the battery block 101 is high, the coolant is first discharged into the energy storage box 100 through the cold circulation box 130, and then the driving motor 115 is started to drive the connecting rod 116 to rotate. When the connecting rod 116 rotates, the first rotating wheels 110 on both sides are driven to rotate at the same time. Under the action of the second rotating wheel 111, the reciprocating belt 112 is driven, and the moving block 113 slides on the inner wall of the limit ring 114, thereby driving the heat dissipation box 104 to slide on the bottom wall of the energy storage box 100, and the heat dissipation is started at the same time. The fan 105 cools down the battery block 101 from the bottom, and can also simultaneously cool down the coolant flowing into the energy storage box 100 from the cold circulation box 130, further improving the cooling efficiency. At the same time, the servo motor 122 is started to drive the transmission rod 123 to rotate, and the closed leaf 120 is driven to rotate through the transmission rod 123. When a group of closed leaves 120 rotates, the closed leaves 120 are synchronously deflected under the action of the linkage frame 121, thereby realizing the adjustment of the size of the ventilation slot 102, realizing the rapid cooling of the lithium battery, and improving the safety during use.

[0032] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An anti-overheating regulating device for an energy storage lithium battery, comprising an energy storage box (100) and a battery block (101) connected to the inside of the energy storage box (100), characterized in that: Both side walls of the energy storage box (100) are provided with ventilation slots (102); the bottom wall of the energy storage box (100) is provided with a heat dissipation slot (103); the bottom wall of the energy storage box (100) is connected to a cooling component for improving the heat dissipation efficiency of the battery block (101); the cooling component comprises a heat dissipation box (104) slidably connected to the bottom wall of the energy storage box (100); evenly distributed heat dissipation fans (105) are fixedly connected inside the heat dissipation box (104); the side walls of the energy storage box (100) are connected to a driving component for driving the heat dissipation box (104) to reciprocate; two groups of the driving components are symmetrically arranged about the central axis of the energy storage box (100); and the side walls of the ventilation slots (102) are connected to a ventilation expansion component for automatically adjusting ventilation according to the temperature of the battery block (101).

2. The overheating prevention regulating device for an energy storage lithium battery according to claim 1, characterized in that: The driving assembly comprises a first rotating wheel (110) rotatably connected to a side wall of an energy storage box (100); the side wall of the energy storage box (100) is also rotatably connected to a second rotating wheel (111); the first rotating wheel (110) is transmission-connected to the second rotating wheel (111) via a reciprocating belt (112); a moving block (113) is fixedly connected to the side wall of the reciprocating belt (112); a limiting ring (114) is fixedly connected to the side wall of the heat dissipation box (104); the moving block (113) is slidably connected to the inner wall of the limiting ring (114); a driving motor (115) is fixedly connected to the side wall of the energy storage box (100); a connecting rod (116) is fixedly connected to the output end of the driving motor (115); and two groups of the first rotating wheels (110) are fixedly connected via the connecting rod (116).

3. The overheating prevention regulating device for an energy storage lithium battery according to claim 1, characterized in that: The ventilation expansion component comprises closed leaves (120) rotatably connected to the side walls of the ventilation slot (102); the closed leaves (120) are evenly distributed in a plurality of groups along the side walls of the ventilation slot (102); the side walls of the ventilation slot (102) are slidably connected to a group of linkage frames (121); the linkage frames (121) are rotatably connected to the closed leaves (120).

4. The overheating prevention regulating device for energy storage lithium battery according to claim 3, characterized in that: A servo motor (122) is fixedly connected to the bottom wall of the energy storage box (100), a transmission rod (123) is fixedly connected to the output end of the servo motor (122), and the transmission rod (123) is fixedly connected to one group of closed leaves (120).

5. The overheating prevention regulating device for energy storage lithium battery according to claim 4, characterized in that: A cold circulation box (130) is fixedly connected to the side wall of the energy storage box (100), and the cold circulation box (130) is in communication with the energy storage box (100).

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