Energy storage box body with integrated functions

Abstract

The utility model discloses a function integrated energy storage box which comprises a reinforcing assembly, a heat preservation assembly and a cooling assembly, a first buffering assembly is arranged on the reinforcing assembly, and a second buffering assembly is installed on the first buffering assembly. According to the energy storage box with the function integration function, auxiliary buffering treatment can be conducted on impact on the side face of the energy storage box with the function integration function, meanwhile, a second buffering assembly is arranged on the first buffering assembly, auxiliary buffering treatment can be conducted on impact on the front face, and the situation that the energy storage box with the function integration function is damaged is reduced; through mutual cooperation of the reinforcing assembly, the heat preservation assembly and the cooling assembly, the energy storage box can be compact in structure, good in function integration and higher in bearing capacity and rigidity, a metal heat bridge can be effectively isolated, the heat preservation and anti-condensation capacity of the energy storage box is further improved, better insulation and pressure resistance are further achieved, and the service life of the energy storage box is prolonged. And the risks of arcing and arc discharge of the electrical system are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage boxes, and in particular to a function-integrated energy storage box. Background Art

[0002] The proportion of renewable energy power generation in the country's total power generation is increasing, but the unstable power generation of renewable energy has brought challenges to the dispatching and operation of the power grid. Energy storage has the function of smoothing peaks and filling valleys, and plays a key role in solving the problems of large fluctuations in renewable energy power generation and unstable power quality. The energy storage box is the basic component unit of the energy storage system, which carries, fixes, seals, insulates and cools the internal energy storage cells. The performance of the energy storage box plays an important role in the life and stable operation of the entire system.

[0003] However, when the functionally integrated energy storage box is subjected to a collision during actual use, the functionally integrated energy storage box cannot be provided with auxiliary buffering in multiple directions, which may easily cause the functionally integrated energy storage box to be damaged.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] In response to the problems in the related art, the present invention proposes a functionally integrated energy storage box to overcome the above-mentioned technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A functionally integrated energy storage box includes a reinforcement component, a heat preservation component, and a cooling component. The reinforcement component is provided with a buffer component. The buffer component includes a buffer groove formed on one side of the reinforcement component. The inner wall of the buffer groove is fixedly connected to a plurality of spring-mounted telescopic rods. One end of the spring-mounted telescopic rod is fixedly connected to a buffer plate. The side of the buffer plate opposite to the buffer groove is provided with a plurality of connecting grooves. The inner wall of the connecting groove is connected to a buffer scissor-type frame via a rotating rod.

[0008] Buffer component 2 is installed on buffer component 1, and buffer component 2 includes buffer groove 2 opened above and below buffer plate 1, and the inner wall of buffer groove 2 is fixedly connected with multiple spring-set telescopic rod 2, and one end of spring-set telescopic rod 2 is fixedly connected with buffer plate 2, and multiple connecting grooves 2 are opened on the side of buffer plate 2 opposite to buffer groove 2, and the inner wall of connecting groove 2 is connected with buffer scissor-type frame 2 through rotating rod 2.

[0009] Furthermore, the reinforcement component includes multiple longitudinal beams, multiple cross beams and an intermediate cross beam. The two ends of the longitudinal beams are welded to the cross beams. The intermediate cross beam is arranged in the middle of the longitudinal beam. The two ends of the intermediate cross beam are welded to the opposite side of the longitudinal beam. An installation groove is opened under the longitudinal beam. The inner wall of the installation groove is provided with a glue layer, and the glue layer is bonded with a lower skin. A buffer groove is opened on one side of the longitudinal beam and multiple cross beams.

[0010] Furthermore, the insulation component includes a middle crossbeam that divides the longitudinal beam into a plurality of insulation grooves, and the inner walls of the insulation grooves are installed with insulation foam, which is in contact with the longitudinal beam, the crossbeam, and the middle crossbeam.

[0011] Furthermore, the cooling assembly includes a cooling channel plate and a cooling flat plate. The bottom of the cooling channel plate is in contact with the longitudinal beam, the cross beam and the top of the middle cross beam. The top of the cooling channel plate is connected to the cooling flat plate. A plurality of battery cell fixing cross beams are welded above the cooling flat plate. A plurality of liquid inlet and outlet joints are welded above the cooling flat plate. The liquid inlet and outlet joints are close to one of the battery cell fixing cross beams.

[0012] Furthermore, circular holes are opened on the cooling channel plate, cooling plate, longitudinal beam and cross beam at equal distances. The inner walls of the circular holes are connected with rivet nuts. The rivet nuts are sleeved with sealing rings, which are in contact with the cooling plate.

[0013] Furthermore, buffer pads are provided above the battery cell fixing beam and below the lower skin.

[0014] Furthermore, a buffer pad is provided on one side of the buffer plate 1 and the buffer plate 2, and the buffer pad is adapted to the buffer plate 1 and the buffer plate 2.

[0015] The beneficial effects of the utility model are:

[0016] (1) By setting the buffer component 1 in the reinforcement component, the impact on the side of the functionally integrated energy storage box can be auxiliary buffered. At the same time, the buffer component 2 set in the buffer component 1 can assist in buffering the impact on the front, thereby reducing the damage to the functionally integrated energy storage box.

[0017] (2) By coordinating the reinforcement components, insulation components, and cooling components, not only can the energy storage box be made more compact in structure, have better functional integration, and have higher load-bearing capacity and rigidity, it can also effectively isolate metal thermal bridges, further improve the insulation and anti-condensation capabilities of the energy storage box, and also have better insulation and pressure resistance, reducing the risk of arcing and arcing in the electrical system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the exploded structure of a functionally integrated energy storage box according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic cross-sectional view of a functionally integrated energy storage box according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a reinforcement component of a functionally integrated energy storage box according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the longitudinal and transverse beam structures of a functionally integrated energy storage box according to an embodiment of the present utility model;

[0023] Figure 5 This is a structural schematic diagram of a buffer component 1 and a buffer component 2 of a functionally integrated energy storage box according to an embodiment of the present utility model;

[0024] Figure 6 It is a schematic diagram of the buffer gasket structure of a functionally integrated energy storage box according to an embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Reinforcement assembly; 101. Longitudinal beam; 102. Cross beam; 103. Middle cross beam; 104. Glue layer; 105. Lower skin; 2. Insulation assembly; 201. Insulation trough; 202. Insulation foam; 3. Cooling assembly; 301. Cooling channel plate; 302. Cooling plate; 303. Cell fixing cross beam; 304. Inlet and outlet liquid joints; 4. Buffer assembly one; 401. Buffer trough one; 402. Spring-set telescopic rod one; 403. Buffer plate one; 404. Buffer scissor-type frame one; 5. Buffer assembly two; 501. Buffer trough two; 502. Spring-set telescopic rod two; 503. Buffer plate two; 504. Buffer scissor-type frame two; 6. Round hole; 7. Riveted nut; 8. Sealing ring; 9. Buffer gasket; 10. Buffer pad. DETAILED DESCRIPTION

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] According to an embodiment of the present utility model, a function-integrated energy storage box body is provided.

[0029] Embodiment 1;

[0030] As Figure 1-Figure 3 shown, a function-integrated energy storage box body according to an embodiment of the present utility model includes a reinforcement component 1, a heat insulation component 2, and a cooling component 3. The reinforcement component 1 is composed of a plurality of longitudinal beams 101, a plurality of cross beams 102, and an intermediate cross beam 103. The number of longitudinal beams 101 and cross beams 102 is two. The cross beam 102 is preferably a profile with a rectangular cross-section, and the wall thickness is between 1 and 2 mm. The longitudinal beam 101 is preferably a special-shaped cross-section, and the wall thickness is between 1 and 2 mm. The longitudinal beam 101, the cross beam 102, and the intermediate cross beam 103 are welded into a complete metal framework energy storage box body according to the size combination. According to the overall load-bearing and installation dimension requirements of the box body, the height of the metal framework is between 10 mm and 25 mm, the width is between 600 mm and 900 mm, and the length is between 1000 mm and 2500 mm;

[0031] The cross-sectional width of the longitudinal beam 101 and the cross beam 102 is between 30 mm and 60 mm, and the cross-sectional shape can be rectangular or a special-shaped structure formed by a roll-forming process, such as a "day" shape, an "L" shape, or a complex-shaped cross-section such as a "tian" character grid shape or an "L" shape formed by extrusion. At the positions where the cross-section needs to be bonded;

[0032] An installation block is welded on one side of the longitudinal beam 101 for the fixed installation of the box body and the outside; a plurality of avoidance slots are opened at the positions on the intermediate cross beam 103 that interfere with the flow channels of the cooling flow channel plate 301;

[0033] The metal framework not only plays a role in bearing and fixing the box body, but also can enclose the periphery of the "sandwich" sandwich structure of the entire box body to prevent water vapor from eroding the internal heat insulation structure foam. The water-cooled plate - heat insulation foam 202 - lower skin 105 forms a sandwich structure in terms of mechanical principles, with higher bearing capacity and rigidity. The finite element analysis results show that under the same weight, the present invention has a rigidity improvement of more than 20% compared with the stamping brazing liquid-cooled plate & blown liquid-cooled plate + metal framework;

[0034] The water-cooled plate, thermal insulation foam 202, and lower skin 105 have a compact structure and good functional integration. The thermal insulation foam serves as both a structural and thermal insulation material. The metal frame supports and seals the energy storage box, creating a "sandwich" structure. The water-cooled plate is both a functional component for thermal management and a structural component of the sandwich structure, contributing stiffness to the box and bearing in-plane loads. The thermal insulation foam 202 serves as both a functional component for thermal insulation and bears the out-of-plane shear load of the entire sandwich structure. The lower skin 105 not only seals and insulates, isolates thermal bridges, but also bears the in-plane loads of the entire sandwich structure.

[0035] The middle crossbeam 103 can be increased according to the load-bearing requirements during actual use. The two ends of the longitudinal beam 101 are welded to the crossbeam 102. The middle crossbeam 103 is arranged in the middle position of the longitudinal beam 101. The two ends of the middle crossbeam 103 are welded to the opposite side of the longitudinal beam 101. A mounting groove is provided under the longitudinal beam 101. The mounting groove has an arc-shaped or semicircular glue groove structure. The deepest position of the glue groove is 1-3mm deep. There is a 15-30 micron thick anti-corrosion layer on the inside and outside of the cross section. The anti-corrosion layer not only plays an anti-corrosion role, but also can improve the bonding strength of the glue layer at the bonding point. The inner wall of the mounting groove is provided with a glue layer 104, and the glue layer 104 is bonded with a lower skin 105. A buffer groove 401 is provided on one side of the longitudinal beam 101 and multiple crossbeams 102.

[0036] The lower skin 105 is made of a non-metallic composite material. With a thickness of 1mm, it features high specific strength and low density, with a material density of less than 2000kg / m³. Based on the overall load-bearing requirements of the box, the thickness of the lower skin 105 is between 0.8-1.5mm. The circumference of the lower skin 105 is connected to the lower end surface of the metal frame via fasteners or adhesive bonding. Its thermal conductivity is only 1 / 1000 of that of aluminum alloy and 1 / 500 of that of steel, effectively isolating metal thermal bridges and further enhancing the thermal insulation and anti-condensation capabilities of the energy storage box. In addition to its thermal insulation properties, the non-metallic composite material also offers improved insulation and pressure resistance, reducing the risk of arcing and arcing in the electrical system. Its low density makes it over 30% lighter than aluminum or steel.

[0037] The insulation component 2 includes a middle crossbeam 103 that divides the longitudinal beam 101 into multiple insulation grooves 201. The inner wall of the insulation groove 201 is installed with insulation foam 202. The insulation foam 202 is formed by in-mold injection foaming. It is a hard foam in microscopic terms. The thickness of the foam is 4-8 times thicker than the existing spraying solution, which can better prevent heat and cold loss, and has high insulation and anti-condensation capabilities. The thickest part of the insulation foam 202 is 12mm. The insulation foam 202 is in close contact with the longitudinal beam 101, the crossbeam 102, and the middle crossbeam 10 3. Contact. In the internal closed cavity surrounded by the water-cooling plate, metal frame, and lower skin 105, an insulating structural foam is integrally foamed to fill the internal cavity. The foam is a closed-cell foam structure at the microscopic level, with good thermal insulation performance and good load-bearing capacity. The thickness of the thickest part of the insulating foam 202 is between 8mm and 25mm. The upper part of the insulating foam 202 and the contour of the cooling channel plate 301 follow and form a bond. The lower part of the insulating foam 202 and the lower skin 105 follow and form a bond.

[0038] The cooling assembly 3 includes a cooling channel plate 301 and a cooling flat plate 302. The cooling channel plate 301 and the cooling flat plate 302 are an integral water-cooled plate. The water-cooled plate can be formed by blowing or stamping and brazing. The front and rear crossbeams and water nozzles of the cold plate for fixing the battery cells are welded on the upper cooling flat plate 302. The thickness of the thinnest part of the water-cooled plate is between 1.8 and 2.5 mm. The bottom of the cooling channel plate 301 contacts the longitudinal beam 101, the crossbeam 102 and the top of the middle crossbeam 103. The top of the cooling channel plate 301 is connected to the cooling flat plate 302. A plurality of battery cell fixing crossbeams 303 are welded above the cooling flat plate 302. There are two battery cell fixing crossbeams 303. A plurality of inlet and outlet liquid joints 304 are welded above the cooling flat plate 302. There are two inlet and outlet liquid joints 304 for the flow of coolant in and out. The inlet and outlet liquid joint 304 is close to one of the battery cell fixing crossbeams 303.

[0039] Circular holes 6 are distributed at equal distances on the cooling channel plate 301, the cooling flat plate 302, the longitudinal beam 101 and the cross beam 102, with a hole spacing of 80-150 mm. The circumference of the water-cooled plate and the upper end faces of the longitudinal beam 101 and the cross beam 102 are connected by rivet nuts 7. The inner wall of the circular hole 6 is connected with a rivet nut 7, and a sealing ring 8 is sleeved on the rivet nut 7 to achieve sealing of the box at the hole. The sealing ring 8 is in contact with the cooling flat plate 302, and a buffer gasket 9 is provided above the battery cell fixing beam 303 and below the lower skin 105.

[0040] Embodiment 2;

[0041] like Figures 1-6As shown, according to a functionally integrated energy storage box according to an embodiment of the present utility model, a buffer component 4 is provided on the reinforcement component 1, and the buffer component 4 includes a buffer groove 401 opened on one side of the reinforcement component 1, and a plurality of spring-set telescopic rods 402 are fixedly connected to the inner wall of the buffer groove 401, wherein the number of one spring-set telescopic rod 402 is four groups, and the number of another spring-set telescopic rod 402 is three groups, each group consisting of two components, and one end of the spring-set telescopic rod 402 is fixedly connected to a buffer plate 403, and a plurality of connecting grooves 1 are opened on the side of the buffer plate 403 opposite to the buffer groove 401, wherein the number of one connecting groove 1 is three groups, and the other is two groups, each group consisting of two components, and the inner wall of the connecting groove 1 is connected to a buffer scissor-type frame 404 through a rotating rod 1;

[0042] A buffer component 2 5 is installed on the buffer component 1 4. The buffer component 2 5 includes a buffer groove 2 501 opened above and below the buffer plate 1 403. The inner wall of the buffer groove 2 501 is fixedly connected to a plurality of spring-set telescopic rods 2 502, one of which is a group of four spring-set telescopic rods 2, and the other is a group of three spring-set telescopic rods 2, each group consisting of two components. One end of the spring-set telescopic rod 2 502 is fixedly connected to the buffer plate 2 503. The buffer plate 2 503 is provided with a plurality of connecting grooves 2 on the side opposite to the buffer groove 2 501, one of which is a group of three connecting grooves 2, and the other is a group of two connecting grooves 2. The inner wall of the connecting groove 2 is connected to the buffer scissor-type frame 2 504 through the rotating rod 2.

[0043] A buffer pad 10 is provided on one side of the buffer plate 1 403 and the buffer plate 2 503 , and the buffer pad 10 is adapted to the buffer plate 1 403 and the buffer plate 2 503 .

[0044] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0045] In summary, with the aid of the above-mentioned technical solution of the present invention, the metal skeleton composed of the longitudinal beam 101, the cross beam 102 and the middle cross beam 103 during use improves the carrying capacity and rigidity of the energy storage box, and through the mutual cooperation between the spring-set telescopic rod 1 402, the spring-set telescopic rod 2 502 and the buffer plate 1 403, the buffer plate 2 503, the buffer scissor-type frame 1 404, and the buffer scissor-type frame 2 504, the energy storage box can be provided with better protection when subjected to external impact, which helps to absorb vibration and impact force, thereby protecting internal sensitive components from damage, and the thermal insulation foam 202 provided in the thermal insulation tank 201 is filled in the space formed by the metal skeleton, which can effectively reduce heat loss or the influence of external temperature on the environment inside the box. , which is particularly important for maintaining the appropriate temperature range required for battery operation, because extreme temperature conditions may reduce battery efficiency and even shorten its service life. At the same time, the cooling channel plate 301 and the cooling flat plate 302 cooperate with each other to form an effective liquid cooling system. The heat generated by the battery pack is taken away by circulating coolant, ensuring that a good thermal management state can be maintained even under high-load operating conditions. The rivet nut 7 is provided in the circular hole 6 and cooperates with the sealing ring 8 to achieve a close connection between the various components, while maintaining the airtightness of the system, preventing moisture or dust from entering and affecting electrical safety and reliability. The buffer gasket 9 provided between the battery cell fixing beam 303 and the lower skin 105 further enhances the overall seismic resistance.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A functionally integrated energy storage box, characterized in that: The invention comprises a reinforcement component (1), a heat preservation component (2), and a cooling component (3); the reinforcement component (1) is provided with a buffer component (4); the buffer component (4) comprises a buffer groove (401) opened on one side of the reinforcement component (1); the inner wall of the buffer groove (401) is fixedly connected with a plurality of spring-set telescopic rods (402); one end of the spring-set telescopic rod (402) is fixedly connected with a buffer plate (403); a plurality of connecting grooves (403) are opened on a side opposite to the buffer groove (401); the inner wall of the connecting groove is connected with a buffer scissor-type frame (404) via a rotating rod (404); The buffer component 1 (4) is provided with a buffer component 2 (5), and the buffer component 2 (5) includes a buffer groove 2 (501) provided above and below the buffer plate 1 (403), and the inner wall of the buffer groove 2 (501) is fixedly connected with a plurality of spring-set telescopic rods 2 (502), and one end of the spring-set telescopic rods 2 (502) is fixedly connected with the buffer plate 2 (503), and a plurality of connecting grooves 2 are provided on the side of the buffer plate 2 (503) opposite to the buffer groove 2 (501), and the inner wall of the connecting groove 2 is connected with a buffer scissor-type frame 2 (504) via a rotating rod 2.

2. A functionally integrated energy storage box according to claim 1, characterized in that: The reinforcement assembly (1) comprises a plurality of longitudinal beams (101), a plurality of transverse beams (102) and an intermediate transverse beam (103), the two ends of the longitudinal beams (101) are welded to the transverse beams (102), the intermediate transverse beam (103) is arranged in the middle of the longitudinal beam (101), the two ends of the intermediate transverse beam (103) are welded to the opposite side of the longitudinal beam (101), a mounting groove is provided below the longitudinal beam (101), the inner wall of the mounting groove is provided with a glue layer (104), the glue layer (104) is bonded with a lower skin (105), and the buffer groove (401) is provided on one side of the longitudinal beam (101) and the plurality of transverse beams (102).

3. The functionally integrated energy storage box according to claim 2, characterized in that: The insulation assembly (2) includes a middle crossbeam (103) that divides the longitudinal beam (101) into a plurality of insulation grooves (201). Insulation foam (202) is installed on the inner wall of the insulation groove (201). The insulation foam (202) is in contact with the longitudinal beam (101), the crossbeam (102), and the middle crossbeam (103).

4. The functionally integrated energy storage box according to claim 2, characterized in that: The cooling assembly (3) comprises a cooling channel plate (301) and a cooling flat plate (302). The lower portion of the cooling channel plate (301) contacts the longitudinal beam (101), the cross beam (102) and the upper portion of the middle cross beam (103). The upper portion of the cooling channel plate (301) is connected to the cooling flat plate (302). A plurality of battery cell fixing cross beams (303) are welded to the upper portion of the cooling flat plate (302). A plurality of liquid inlet and outlet joints (304) are welded to the upper portion of the cooling flat plate (302), and the liquid inlet and outlet joints (304) are close to one of the battery cell fixing cross beams (303).

5. The functionally integrated energy storage box according to claim 4, characterized in that: Circular holes (6) distributed at equal distances are provided on the cooling channel plate (301), the cooling flat plate (302), the longitudinal beam (101), and the cross beam (102); the inner walls of the circular holes (6) are connected with rivet nuts (7); a sealing ring (8) is sleeved on the rivet nuts (7); and the sealing ring (8) is in contact with the cooling flat plate (302).

6. The functionally integrated energy storage box according to claim 4, characterized in that: Buffer pads (9) are provided above the battery cell fixing beam (303) and below the lower skin (105).

7. The functionally integrated energy storage box according to claim 1, characterized in that: A buffer pad (10) is provided on one side of the buffer plate 1 (403) and the buffer plate 2 (503), and the buffer pad (10) is adapted to the buffer plate 1 (403) and the buffer plate 2 (503).

Images