Combined energy storage device

By designing a mobile lifting mechanism and moisture-proof mechanism in the energy storage device, the problems of heat accumulation and moisture accumulation in the box are solved, and more efficient heat dissipation and waterproofing performance are achieved, extending the service life of the equipment and reducing the difficulty of maintenance.

CN119582012AInactive Publication Date: 2025-03-07ZHIKAN SHENJIAN (BEIJING) TECH CO LTD
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Patent Information

Application Number
CN202510138033.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2025-03-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The internal heat of the existing energy storage device is too much, resulting in poor heat dissipation, increasing the difficulty of maintenance and economic losses. At the same time, moisture accumulation and moisture in rainy and snowy weather are prone to problems, affecting the normal use of the equipment.

Method used

A combined energy storage device is designed, using technical means such as mobile lifting mechanisms and moisture-proof mechanisms to drive the lifting mobile plates to rise through a power motor to avoid water accumulation; when it rains or snows, components such as push plates and expansion airbags are used to seal the device to prevent water from entering; in high temperature weather, the windshield is opened by pushing the mechanism to promote heat dissipation.

Benefits of technology

It effectively solves the problems of heat accumulation and water accumulation in the box of the energy storage device, improves the heat dissipation efficiency and waterproof and moisture-proof performance of the equipment, extends the service life of the equipment and reduces the difficulty of maintenance.

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Abstract

The invention relates to the technical field of energy storage equipment, in particular to a combined energy storage device which comprises a box body, a door plate is rotatably connected to the outer wall of the box body, a bottom plate is fixedly connected to the bottom of the inner wall of the box body, and a fixing frame is fixedly connected to the side wall of the box body. When water is accumulated in the energy storage box body, a power motor starts to tighten a bottom pushing rod, a convex block body slides in a supporting notch, the pushing rod pushes a telescopic support, a lifting moving plate is lifted upwards in a lever mode, a supporting mechanism is extruded, the supporting mechanism is subjected to extrusion force, the top starts to incline forwards, and the supporting mechanism is influenced by the inclined face of an inner groove of the support; when it rains or snows, the lifting moving plate ascends, the fixing base moves upwards, the moving plate is driven to extrude the trapezoidal block, the push plate moves, the push plate drives the push block to extrude the wind shield, the device is closed, and water is prevented from entering the device.
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Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, in particular to a combined energy storage device. Background Art

[0002] An energy storage device is a device for storing electrical energy or other energy sources. The construction of an electrochemical energy storage power station usually requires the centralized arrangement of a large number of electrochemical energy storage devices. Existing energy storage devices usually use a collection box as a carrier for the convenience of transportation and centralized arrangement. The box of some existing energy storage devices uses a single-layer space, and electrical components such as battery modules, temperature control modules, and heat exchange components are arranged in the same space. Some existing energy storage devices install the heat exchange components on the outside of the box. The volume of the energy storage device with the heat exchange components installed on the outside of the box is larger than that of a standard container. However, energy storage systems usually require the centralized arrangement of a large number of energy storage devices, which results in the adjacent arrangement or up and down stacking of the boxes of the energy storage devices requiring a larger space or land area, thereby reducing the energy storage density of the energy storage system and increasing the construction cost of the energy storage system.

[0003] Excessive heat inside the box of the energy storage device is not conducive to the heat dissipation and overall efficiency of the energy storage device. In addition, the box needs to be equipped with multiple heat dissipation or connecting windows, which is not conducive to dustproof, waterproof and other safety protection. At present, in the southern coastal areas of my country, there are often sudden rainstorms in summer. When the high-temperature iron plate is suddenly cooled by rain, the internal condensed moisture drips on the electronic instruments, affecting the life of the circuit breaker and even causing leakage. Or long-term rainfall in the rainy season causes water accumulation inside the energy storage box. If there are no emergency measures, it will bring greater economic losses and maintenance difficulties. Since the power components inside the energy storage box will generate heat when working, and the heat accumulated inside the cabinet will cause damage to the internal power group. However, in rainy and snowy weather, if the air inlet and outlet are kept open on a daily basis, it is inevitable that moisture will enter the interior of the energy storage box with the air, causing the humidity inside the energy storage box to be heavy, which directly affects the normal use of the power cabinet. Summary of the invention

[0004] The purpose of the present invention is to provide a combined energy storage device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a combined energy storage device, including a combined energy storage device, including a box body, a door panel is rotatably connected to the outer wall of the box body, a bottom plate is fixedly connected to the bottom of the inner wall of the box body, a fixed frame is fixedly connected to the side wall of the box body, an internal bracket is fixedly connected to the inner wall of the box body, and an internal support plate is fixedly connected to the side wall of the internal bracket, and further includes: A mobile lifting mechanism, the mobile lifting mechanism includes a power motor fixedly connected to the top of the bottom plate, a support bottom plate fixedly connected to the top central axis of the bottom plate, a support slot is provided at the top outer wall of the support bottom plate, a push rod is slidably connected inside the support slot, a pulling plate is fixedly connected to the top of the push rod, a convex block is fixedly connected to the bottom of the push rod, a telescopic bracket is slidably connected to the top of the support slot, a lifting and moving plate is slidably connected to the top of the telescopic bracket, a lifting and moving plate is slidably connected to the top of the lifting and moving plate, lifting and moving plate slide grooves are provided at the outer walls on both sides of the lifting and moving plate, a bottom power wheel is rotatably connected to the top outer wall of the support bottom plate, and a belt is rotatably connected to the outer wall of the bottom power wheel; The supporting mechanism includes a support trunk fixedly connected to the top of the lifting and moving plate, support side slots are opened on both sides of the support trunk, a support rear slot is opened at the rear wall of the support trunk, a fixing plate is fixedly connected to the inside of the support side slot, a support slot is opened at the top central axis of the fixing plate, and a wire pipe hole is opened at the top outer wall of the fixing plate.

[0006] Furthermore, a bracket inner groove is opened on the outer wall of the bracket trunk, and a bracket rear wall heteromorphic block is fixedly connected to the bracket inner groove at one end close to the bracket rear notch, and a telescopic spring is fixedly connected to the rear wall of the bracket rear wall heteromorphic block.

[0007] Furthermore, a ventilation mechanism is provided on the inner wall of the fixed frame, and the ventilation mechanism includes a push groove opened on the inner wall of the fixed frame, the inner wall of the push groove is fixedly connected with a compression spring, and one end of the compression spring is fixedly connected with a connecting push rod.

[0008] Furthermore, the ventilation mechanism also includes a windshield plate that is closely connected to the side wall of the connecting push rod, the side wall of the windshield plate is fixedly connected with a connecting shaft, and one end of the connecting shaft away from the windshield plate is rotatably connected to the inner wall of the fixed frame.

[0009] Furthermore, a moisture-proof mechanism is provided on the top of the fixed frame, and the moisture-proof mechanism includes a convex groove plate slidably connected to the top of the fixed frame, a push plate is fixedly connected to the bottom of the convex groove plate, and a push block is fixedly connected to the side wall of the push plate.

[0010] Furthermore, the moisture-proof mechanism also includes an extrusion plate fixedly connected to one end of the pushing block, the side wall of the extrusion plate is slidably connected with an extrusion box, the side wall of the extrusion box is fixedly connected to the side wall of the box body, the inner wall of the extrusion box is fixedly connected with a return spring, one end of the return spring is fixedly connected to the side wall of the extrusion plate, the inner wall of the fixed plate is fixedly connected with a connecting sliding plate, the side wall of the wire tube hole is provided with a vent hole, the side wall of the extrusion box is fixedly connected with a connecting hole plate, the side wall of the connecting hole plate is fixedly connected with an expansion airbag, and the expansion airbag is fit-connected to the outer surface of the fixed frame.

[0011] Furthermore, a pushing mechanism is provided on the top of the lifting movable plate, and the pushing mechanism includes a fixing seat fixedly connected to the top of the lifting movable plate, and a connecting fixing rod is fixedly connected to the side wall of the fixing seat.

[0012] Furthermore, the pushing mechanism also includes a movable plate fixedly connected to the side wall of the connecting and fixing rod, the movable plate is fittedly connected to one end away from the connecting and fixing rod, and the side wall of the trapezoidal block is fixedly connected to the outer wall of the pushing plate.

[0013] The present invention has the following beneficial effects: 1 A combined energy storage device. When water accumulates inside the energy storage box, the power motor starts to tighten the bottom push rod, and the protruding block slides in the support groove, so that the push rod pushes the telescopic bracket, and the lifting and moving plate is lifted upward by lever, away from the bottom water accumulation part, and squeezes the support mechanism. When the support mechanism is squeezed, the top begins to tilt forward, and is affected by the inclined surface of the inner groove of the bracket, and slides to the surface of the lifting and moving plate, and the lifting and moving plate provides mechanical power for subsequent reset to avoid the bottom water accumulation.

[0014] 2 This combined energy storage device, when it rains or snows, the water vapor contained in it comes into contact with the device and is easily damaged. At this time, the lifting and moving plate rises, causing the fixed seat to move upward, and drives the moving plate to squeeze the trapezoidal block, so that the push plate moves, and the push plate drives the pushing block to squeeze the windshield plate to close the device to prevent water from entering. When the push plate moves, the convex groove plate pushes the squeezing plate to squeeze the inside of the squeezing box, thereby generating gas in the squeezing box. The gas is transported to the inside of the expansion airbag through the vent hole and the connecting hole plate, and the expansion airbag expands. The expansion airbag seals the machine from the outside to prevent rainwater from entering its interior, thereby preventing moisture from affecting internal electronic instruments.

[0015] 3. A combined energy storage device. When the temperature of the cabinet is high and it is in hot weather, the temperature inside the machine is high, and the moving plate descends to reset the trapezoidal block, so that the extrusion spring pushes the connecting push rod inward to reset and squeeze, and the connecting push rod pushes the wind shield to open, so as to dissipate the heat and prevent the high temperature inside the cabinet from affecting the normal operation of the electrical devices inside the cabinet.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the box body of the present invention; Figure 3 It is a schematic diagram of the overall structure of the mobile lifting mechanism of the present invention; Figure 4 It is a schematic diagram of the supporting mechanism structure of the present invention; Figure 5 It is a schematic diagram of the structure of the moisture-proof mechanism of the present invention; Figure 6 It is an enlarged cross-sectional view of the moisture-proof mechanism structure of the present invention; Figure 7 It is a cross-sectional view of the overall bottom structure of the present invention; Figure 8 This is an enlarged view of the driving mechanism structure of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1, box body; 101, bottom plate; 102, door plate; 103, fixed frame; 105, internal bracket; 106, internal support plate; 2, mobile lifting mechanism; 201, power motor; 202, support bottom plate; 203, support notch; 204, push rod; 205, pull plate; 206, convex block; 207, telescopic bracket; 208, lifting and moving plate; 209, lifting and moving plate slide; 210, bottom power wheel; 211, belt; 3, support mechanism; 301, bracket trunk; 302, bracket side notch; 303, bracket rear notch; 304, fixed plate; 305, bracket notch; 306, wire Tube hole; 307, bracket inner groove; 308, bracket rear wall heterogeneous block; 309, telescopic spring; 4, ventilation mechanism; 401, push groove; 402, extrusion spring; 403, connecting push rod; 404, wind shield; 405, connecting shaft; 5, moisture-proof mechanism; 501, push plate; 502, convex groove plate; 503, extrusion plate; 504, extrusion box; 505, reset spring; 506, connecting sliding plate; 507, vent; 508, connecting hole plate; 509, expansion airbag; 510, pushing block; 6, pushing mechanism; 601, fixing seat; 602, connecting fixing rod; 603, moving plate; 604, trapezoidal block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0021] See also Figure 1 - Figure 6 As shown, the present invention is a combined energy storage device, including a box body 1, a door panel 102 is rotatably connected to the outer wall of the box body 1, a bottom plate 101 is fixedly connected to the bottom of the inner wall of the box body 1, a fixing frame 103 is fixedly connected to the side wall of the box body 1, an internal bracket 105 is fixedly connected to the inner wall of the box body 1, and an internal support plate 106 is fixedly connected to the side wall of the internal bracket 105, and further includes: The mobile lifting mechanism 2 includes a power motor 201 fixedly connected to the top of the bottom plate 101, a support bottom plate 202 is fixedly connected to the top central axis of the bottom plate 101, a support slot 203 is provided on the top outer wall of the support bottom plate 202, a push rod 204 is slidably connected inside the support slot 203, a pulling plate 205 is fixedly connected to the top of the push rod 204, a convex block 206 is fixedly connected to the bottom of the push rod 204, a telescopic bracket 207 is slidably connected to the top of the support slot 203, and a lifting and moving plate 208 is slidably connected to the top of the telescopic bracket 207. Lifting and moving plate slide grooves 209 are provided on the outer walls on both sides of the lifting and moving plate 208, and the top outer wall of the supporting bottom plate 202 is rotatably connected to the bottom power wheel 210, and the outer wall of the bottom power wheel 210 is rotatably connected to the belt 211. The power motor 201 makes the lifting and moving plate 208 move up and down. When water accumulates inside the energy storage box, the power motor 201 starts to tighten the bottom push rod 204, and the protruding block 206 slides in the supporting notch 203, so that the push rod 204 pushes the telescopic bracket 207, and the lifting and moving plate 208 is lifted upward by levering, away from the bottom water accumulation part; The support mechanism 3 includes a support trunk 301 fixedly connected to the top of the lifting and moving plate 208, support side slots 302 are provided on both sides of the support trunk 301, a support rear slot 303 is provided on the rear wall of the support trunk 301, a fixing plate 304 is fixedly connected to the inside of the support side slot 302, a support slot 305 is provided on the top center axis of the fixing plate 304, a wire tube hole 306 is provided on the top outer wall of the fixing plate 304, and a support inner slot 303 is provided on the outer wall of the support trunk 301. Slot 307, the inner slot 307 of the bracket is fixedly connected with a bracket rear wall alien block 308 at one end near the rear slot 303 of the bracket, and the rear wall of the bracket rear wall alien block 308 is fixedly connected with a telescopic spring 309. When the supporting mechanism 3 is subjected to the extrusion force, the top begins to tilt forward, and under the influence of the inclined surface of the inner slot 307 of the bracket, the main body 301 of the bracket will slide to the surface of the lifting and moving plate 208, and the lifting and moving plate 208 provides mechanical power for subsequent resetting, avoids water accumulation at the bottom, and reduces the use time of the instrument and the difficulty of maintenance. Example 2

[0022] The difference from Example 1 is that See also Figure 5 - Figure 8 , A ventilation mechanism 4 is provided on the inner wall of the fixed frame 103, and the ventilation mechanism 4 includes a pushing groove 401 opened on the inner wall of the fixed frame 103, and the inner wall of the pushing groove 401 is fixedly connected with a squeezing spring 402, and one end of the squeezing spring 402 is fixedly connected with a connecting push rod 403. The ventilation mechanism 4 also includes a windshield 404 that is fitted and connected to the side wall of the connecting push rod 403, and the side wall of the windshield 404 is fixedly connected with a connecting shaft 405, and one end of the connecting shaft 405 away from the windshield 404 is rotatably connected to the inner wall of the fixed frame 103, and the squeezing spring 402 pushes the connecting push rod 403 inward for reset and squeezing, and the connecting push rod 403 pushes the windshield 404 to open, thereby dissipating heat.

[0023] The top of the fixed frame 103 is provided with a moisture-proof mechanism 5, which includes a convex groove plate 502 slidably connected to the top of the fixed frame 103, a push plate 501 is fixedly connected to the bottom of the convex groove plate 502, and a push block 510 is fixedly connected to the side wall of the push plate 501. The moisture-proof mechanism 5 also includes an extrusion plate 503 fixedly connected to one end of the push block 510, and an extrusion box 504 is slidably connected to the side wall of the extrusion plate 503. The side wall of the extrusion box 504 is fixedly connected to the side wall of the box body 1, and the inner wall of the extrusion box 504 is fixedly connected to the return spring 505. The return spring 5 One end of 05 is fixedly connected to the side wall of the extrusion plate 503, the inner wall of the fixed plate 304 is fixedly connected with a connecting sliding plate 506, the side wall of the wire tube hole 306 is provided with a vent 507, the side wall of the extrusion box 504 is fixedly connected with a connecting hole plate 508, the side wall of the connecting hole plate 508 is fixedly connected with an expansion airbag 509, the expansion airbag 509 is fitted and connected to the outer surface of the fixed frame 103, the push plate 501 drives the pushing block 510 to squeeze the windshield plate 404, so that the device is closed to prevent water from entering, when the push plate 501 moves, the convex groove plate 502 pushes the extrusion plate 503 to squeeze the inside of the extrusion box 504, so that gas is generated in the extrusion box 504, and the gas is transported to the inside of the expansion airbag 509 through the vent 507 and the connecting hole plate 508, the expansion airbag 509 is expanded, and the expansion airbag 509 closes the machine from the outside.

[0024] A pushing mechanism 6 is provided on the top of the lifting movable plate 208, and the pushing mechanism 6 includes a fixed seat 601 fixedly connected to the top of the lifting movable plate 208, and the side wall of the fixed seat 601 is fixedly connected to a connecting fixing rod 602. The pushing mechanism 6 also includes a moving plate 603 fixedly connected to the side wall of the connecting fixing rod 602, and the end of the moving plate 603 away from the connecting fixing rod 602 is fitted with a trapezoidal block 604, and the side wall of the trapezoidal block 604 is fixedly connected to the outer wall of the push plate 501. The fixed seat 601 moves upward and drives the moving plate 603 to squeeze the trapezoidal block 604, so that the push plate 501 moves.

[0025] When in use, when water accumulates inside the energy storage box, the power motor 201 starts to tighten the bottom push rod 204, and the protruding block 206 slides in the support groove 203, so that the push rod 204 pushes the telescopic bracket 207, and the lifting and moving plate 208 is lifted upward by levering, away from the bottom water accumulation part, and squeezes the support mechanism 3. When the support mechanism 3 is squeezed, the top begins to tilt forward, and under the influence of the inclined surface of the bracket inner groove 307, the bracket trunk 301 will slide to the surface of the lifting and moving plate 208, and the lifting and moving plate 208 is Subsequently, mechanical power for resetting is provided to avoid water accumulation at the bottom, reduce the use time of the instrument and the difficulty of maintenance. At the same time, when it rains or snows, the water vapor contained in the device is easy to be damaged when it contacts with the device. At this time, the lifting and moving plate 208 rises, so that the fixed seat 601 moves upward, and drives the moving plate 603 to squeeze the trapezoidal block 604, so that the push plate 501 moves, and the push plate 501 drives the pushing block 510 to squeeze the windshield plate 404, so that the device is closed to prevent water from entering. When the push plate 501 moves, the convex groove plate 502 The extrusion plate 503 is pushed to extrude the inside of the extrusion box 504, thereby generating gas in the extrusion box 504. The gas is transported to the inside of the expansion airbag 509 through the vent hole 507 and the connecting hole plate 508. The expansion airbag 509 expands. The expansion airbag 509 seals the machine from the outside to prevent rainwater from entering the inside. When the temperature of the box body 1 is high and it is in hot weather, the temperature inside the machine is high, and the movable plate 603 descends to reset the trapezoidal block 604, so that the extrusion spring 402 pushes the connecting push rod 403 inward for reset and extrusion, and the connecting push rod 403 pushes the windshield 404 to open, thereby dissipating the heat.

[0026] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A combined energy storage device, comprising a box (1), wherein a door panel (102) is rotatably connected to the outer wall of the box (1), a bottom plate (101) is fixedly connected to the bottom of the inner wall of the box (1), a fixing frame (103) is fixedly connected to the side wall of the box (1), an internal bracket (105) is fixedly connected to the inner wall of the box (1), and an internal support plate (106) is fixedly connected to the side wall of the internal bracket (105), characterized in that: Also includes: A mobile lifting mechanism (2), the mobile lifting mechanism (2) comprising a power motor (201) fixedly connected to the top of a base plate (101), a support base plate (202) fixedly connected to the top central axis of the base plate (101), a support slot (203) provided on the top outer wall of the support base plate (202), a push rod (204) slidably connected inside the support slot (203), a pulling plate (205) fixedly connected to the top of the push rod (204), and the push rod (204) ) is fixedly connected to the bottom of the support base plate (202), a protruding block body (206) is slidably connected to the top of the support notch (203), a telescopic bracket (207) is slidably connected to the top of the telescopic bracket (207), a lifting and moving plate (208) is slidably connected to the top of the lifting and moving plate (208), lifting and moving plate sliding grooves (209) are provided on the outer walls on both sides of the lifting and moving plate (208), a bottom power wheel (210) is rotatably connected to the top outer wall of the support base plate (202), and a belt (211) is rotatably connected to the outer wall of the bottom power wheel (210); A support mechanism (3), the support mechanism (3) comprising a support trunk (301) fixedly connected to the top of the lifting movable plate (208), support side slots (302) being provided on both sides of the support trunk (301), a support rear slot (303) being provided at the rear wall of the support trunk (301), a fixing plate (304) being fixedly connected inside the support side slot (302), a support slot (305) being provided at the top center axis of the fixing plate (304), and a wire pipe hole (306) being provided at the top outer wall of the fixing plate (304).

2. A combined energy storage device according to claim 1, characterized in that: A bracket inner groove (307) is provided on the outer wall of the bracket trunk (301); a bracket rear wall foreign body block (308) is fixedly connected to the bracket inner groove (307) at one end close to the bracket rear notch (303); and a telescopic spring (309) is fixedly connected to the rear wall of the bracket rear wall foreign body block (308).

3. A combined energy storage device according to claim 2, characterized in that: The inner wall of the fixed frame (103) is provided with a ventilation mechanism (4), the ventilation mechanism (4) comprising a pushing groove (401) opened on the inner wall of the fixed frame (103), the inner wall of the pushing groove (401) being fixedly connected to a pressing spring (402), one end of the pressing spring (402) being fixedly connected to a connecting push rod (403).

4. A combined energy storage device according to claim 3, characterized in that: The ventilation mechanism (4) further comprises a windshield (404) which is fittedly connected to the side wall of the connecting push rod (403); the side wall of the windshield (404) is fixedly connected to a connecting shaft (405); and one end of the connecting shaft (405) away from the windshield (404) is rotatably connected to the inner wall of the fixed frame (103).

5. A combined energy storage device according to claim 4, characterized in that: A moisture-proof mechanism (5) is provided on the top of the fixed frame (103), and the moisture-proof mechanism (5) comprises a convex groove plate (502) slidably connected to the top of the fixed frame (103), a push plate (501) is fixedly connected to the bottom of the convex groove plate (502), and a push block (510) is fixedly connected to the side wall of the push plate (501).

6. A combined energy storage device according to claim 5, characterized in that: The moisture-proof mechanism (5) further comprises an extrusion plate (503) fixedly connected to one end of the push block (510); a side wall of the extrusion plate (503) is slidably connected to an extrusion box (504); a side wall of the extrusion box (504) is fixedly connected to a side wall of the box body (1); a return spring (505) is fixedly connected to the inner wall of the extrusion box (504); one end of the return spring (505) is fixedly connected to the side wall of the extrusion plate (503); a connecting sliding plate (506) is fixedly connected to the inner wall of the fixed plate (304); a vent hole (507) is provided on the side wall of the wire tube hole (306); a connecting hole plate (508) is fixedly connected to the side wall of the extrusion box (504); an expansion air bag (509) is fixedly connected to the outer surface of the fixed frame (103).

7. A combined energy storage device according to claim 6, characterized in that: A pushing mechanism (6) is provided on the top of the lifting movable plate (208), and the pushing mechanism (6) comprises a fixing seat (601) fixedly connected to the top of the lifting movable plate (208), and a connecting fixing rod (602) is fixedly connected to the side wall of the fixing seat (601).

8. A combined energy storage device according to claim 7, characterized in that: The pushing mechanism (6) further comprises a movable plate (603) fixedly connected to the side wall of the connecting and fixing rod (602); one end of the movable plate (603) away from the connecting and fixing rod (602) is fittedly connected to a trapezoidal block (604); and the side wall of the trapezoidal block (604) is fixedly connected to the outer wall of the pushing plate (501).

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