Battery pack of solar photovoltaic energy storage system
By installing isolation seats on both sides of the battery cell group of the solar cell group and forming a heat dissipation space, combined with the fan to accelerate the airflow, the problem of poor heat dissipation of the battery cell in summer wind-cooled is solved, and efficient heat dissipation of the battery cell is achieved.
Patent Information
- Application Number
- CN202421443153.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-24
AI Technical Summary
When existing solar cell packs are cooled in summer, the gap between the cells is small and cannot effectively dissipate heat, resulting in the battery cell temperature being too high.
A battery pack of a solar photovoltaic energy storage system is designed, and a first isolation base and a second isolation base are installed on both sides of the battery cell group and fixedly connected by straps to form a heat dissipation space between adjacent battery cells. At the same time, heat dissipation holes are opened on both side walls of the outer guard box, and a heat dissipation fan is installed to accelerate airflow.
By increasing the gap between the cells and accelerating the airflow with fans, the heat dissipation effect of the cells is significantly improved, effectively reducing the cell temperature, and ensuring efficient heat dissipation in high-temperature environments in summer.
Smart Images
Figure CN222838906U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the photovoltaic field, in particular to a battery pack of a solar photovoltaic energy storage system. Background Art
[0002] Solar cell modules, also called solar panels or photovoltaic modules, are the core and most important part of solar power generation systems. Their function is to convert solar energy into electrical energy, or to store it in batteries, or to drive loads. The quality and cost of solar cell modules will directly determine the quality and cost of the entire system.
[0003] Since the surface of the solar cell module needs to fully receive sunlight to perform photoelectric conversion well, the solar cell module is usually installed at an angle. However, since its body is relatively thin, it is installed on the ground or wall using a bracket.
[0004] The energy storage of solar cell modules is basically carried out by transmitting the power to the work place, or storing it in a battery pack; a battery pack is composed of multiple battery cells, and the battery cells are isolated by buffer tape. Therefore, the battery cells are attached to each other with small gaps. When air cooling is performed, the outside of the battery cell has a small contact area with the airflow, and the battery cell cannot be fully and efficiently cooled in summer. Utility Model Content
[0005] The purpose of the utility model is to provide a battery pack for a solar photovoltaic energy storage system to solve the defects mentioned in the above background technology.
[0006] To achieve the above object, a battery pack of a solar photovoltaic energy storage system is provided, comprising a base plate, a battery cell group is mounted on the surface of the base plate, and the surface of the battery cell group is covered with a cover plate, and a first isolation seat is fixedly mounted on one side of the battery cell group, and a second isolation seat is fixedly mounted on the other side of the battery cell group, and the second isolation seat is fixedly connected to the first isolation seat by a binding strap;
[0007] The bottom plate is positioned and installed inside the outer protective box, and the top of the outer protective box is screwed and fixed with an upper cover, two sets of cooling fans are installed on the upper cover, and cooling holes are opened on the two side wall surfaces of the outer protective box.
[0008] Preferably, seven groups of battery cells are arranged on the battery cell group, and seven groups of positioning grooves are evenly opened on the surface of the bottom plate, and the bottoms of the seven groups of battery cells are respectively inserted into the seven groups of positioning grooves, and seven groups of accommodating openings are evenly opened on the cover plate, and the battery cells are inserted into the seven groups of accommodating openings.
[0009] Preferably, two groups of first isolation seats and second isolation seats are evenly arranged on the outer sides of the battery cell group, and the first isolation seats and the second isolation seats are arranged in parallel, and the composition structures of the first isolation seats and the second isolation seats are consistent.
[0010] Preferably, six groups of embedded seats are evenly arranged on the first isolation seat, and the embedded seats are inserted between two adjacent groups of battery cells, and a heat dissipation space is formed between the two adjacent groups of battery cells.
[0011] Preferably, four groups of support columns are evenly arranged on the surface of the base plate, and screw holes are opened on the tops of the support columns. At the same time, four groups of through holes are evenly opened on the surface of the cover plate. At the same time, the screw holes are adapted to the size of the fixing bolts, and the fixing bolts pass through the through holes and are screwed inside the screw holes.
[0012] Preferably, two sets of lower limit seats are fixedly arranged at both ends of the base plate, and two sets of upper limit seats are fixedly arranged at both ends of the cover plate, and at the same time, limit grooves are opened on the inner wall of the outer protective box, and the lower limit seats and the upper limit seats are slidably arranged inside the limit grooves.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the provision of the first isolation seat and the second isolation seat forms a heat dissipation space between two adjacent groups of battery cells, increases the gap between the battery cells, and the airflow accelerated by the two groups of fans impacts the inside of the heat dissipation space, which can increase the contact area between the airflow and the battery cells, thereby improving the heat dissipation effect on the battery cells. At the same time, the hot air can be discharged from the perforations on the surface wall of the outer protective box, thereby completing the efficient heat dissipation of the battery cell group. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front view schematic diagram of the structure of the utility model;
[0015] Figure 2 The utility model structure Figure 1 Side view of
[0016] Figure 3 The utility model structure Figure 1 A top view of
[0017] Figure 4 This is a schematic diagram of the utility model structure of the battery cell group installed inside the outer protective box.
[0018] Numbers in the figure: 1. bottom plate; 2. lower limit seat; 3. support column; 4. battery cell group; 5. first isolation seat; 6. cover plate; 61. upper limit seat; 7. fixing bolt; 8. receiving opening; 9. second isolation seat; 10. embedded seat; 11. binding strap; 12. outer protective box; 13. limit groove; 14. upper cover; 15. cooling fan. DETAILED DESCRIPTION
[0019] See also Figure 1-4 The utility model provides a battery pack of a solar photovoltaic energy storage system, comprising a bottom plate 1, a battery cell group 4 is mounted on the surface of the bottom plate 1, and the surface of the battery cell group 4 is covered with a cover plate 6, and a first isolation seat 5 is fixedly mounted on one side of the battery cell group 4, and a second isolation seat 9 is fixedly mounted on the other side of the battery cell group 4, and the second isolation seat 9 is fixedly connected to the first isolation seat 5 by a binding band 11;
[0020] The bottom plate 1 is positioned and installed inside the outer protective box 12, and the top of the outer protective box 12 is screwed and fixed with an upper cover 14. At the same time, two sets of cooling fans 15 are installed on the upper cover 14, and cooling holes are opened on the two side wall surfaces of the outer protective box 12.
[0021] Working principle: When in use, first fix the battery cell group 4 on the surface of the bottom plate 1, and clamp the first isolation seat 5 and the second isolation seat 9 on both sides of the battery cell group 4, and use the strap 11 to fix the first isolation seat 5, the second isolation seat 9 and the battery cell group 4, and fix the battery cell group 4. A heat dissipation space is formed between two adjacent groups of battery cells. The airflow accelerated by the two groups of fans 15 impacts the inside of the heat dissipation space, which can increase the contact area between the airflow and the battery cells and improve the heat dissipation effect of the battery cells. At the same time, the hot air can be discharged from the perforations on the surface wall of the outer protective box 12 to complete the efficient heat dissipation of the battery cell group 4.
[0022] As a preferred embodiment, seven groups of battery cells are arranged on the battery cell group 4, and seven groups of positioning grooves are evenly opened on the surface of the bottom plate 1. At the same time, the bottoms of the seven groups of battery cells are respectively inserted into the seven groups of positioning grooves, and seven groups of accommodating openings 8 are evenly opened on the cover plate 6, and the battery cells are inserted into the seven groups of accommodating openings 8.
[0023] The cover plate 6 covers the outside of the battery cell group 4. At the same time, the battery cells on the battery cell group 4 are arranged through the accommodating opening 8. The bottom of the cover plate 6 is supported by the first isolation seat 5 and the second isolation seat 9. Bolts can be passed through the through holes on the side wall of the outer protective box 12 and screwed to the inside of the screw holes opened on the outer wall surface of the upper limit seat 61.
[0024] As a preferred embodiment, the first isolation seat 5 and the second isolation seat 9 on the outer side of the battery cell group 4 are evenly arranged in two groups, and the first isolation seat 5 and the second isolation seat 9 are arranged in parallel, and the composition structure of the first isolation seat 5 and the second isolation seat 9 is consistent.
[0025] Six groups of embedded seats 10 are evenly arranged on the first isolation seat 5, and the embedded seats 10 are inserted between two adjacent groups of battery cells, and a heat dissipation space is formed between the two adjacent groups of battery cells.
[0026] The arrangement of the first isolation seat 5 and the second isolation seat 9 forms a heat dissipation space between two adjacent groups of battery cells, increasing the gap between the battery cells. When the airflow passes through the gap, it can perform air cooling and heat dissipation work with the battery cells.
[0027] As a preferred embodiment, four groups of support columns 3 are evenly arranged on the surface of the base plate 1, and screw holes are opened on the tops of the support columns 3. At the same time, four groups of through holes are evenly opened on the surface of the cover plate 6. At the same time, the screw holes are adapted to the sizes of the fixing bolts 7, and the fixing bolts 7 pass through the through holes and are screwed inside the screw holes.
[0028] Two sets of lower limit seats 2 are fixedly set at both ends of the base plate 1, and two sets of upper limit seats 61 are fixedly set at both ends of the cover plate 6. At the same time, a limit groove 13 is opened on the inner wall of the outer protective box 12, and the lower limit seat 2 and the upper limit seat 61 are slidably set inside the limit groove 13.
Claims
1. A battery pack of a solar photovoltaic energy storage system, comprising a base plate (1), characterized in that: A battery cell group (4) is mounted on the surface of the base plate (1), and the surface of the battery cell group (4) is covered by a cover plate (6); a first isolation seat (5) is fixedly mounted on one side of the battery cell group (4), and a second isolation seat (9) is fixedly mounted on the other side of the battery cell group (4); the second isolation seat (9) and the first isolation seat (5) are fixedly connected via a binding band (11); The bottom plate (1) is positioned and installed inside the outer protective box (12), and the top of the outer protective box (12) is screwed and fixed with an upper cover (14), and two groups of cooling fans (15) are installed on the upper cover (14), and heat dissipation holes are provided on the two side wall surfaces of the outer protective box (12).
2. The battery pack of a solar photovoltaic energy storage system according to claim 1, characterized in that: Seven groups of battery cells are arranged on the battery cell group (4), and seven groups of positioning grooves are evenly provided on the surface of the bottom plate (1), and the bottoms of the seven groups of battery cells are respectively inserted into the seven groups of positioning grooves, and seven groups of accommodating openings (8) are evenly provided on the cover plate (6), and the seven groups of accommodating openings (8) are all inserted with battery cells.
3. The battery pack of a solar photovoltaic energy storage system according to claim 1, characterized in that: Two groups of first isolation seats (5) and second isolation seats (9) are evenly arranged on the outer side of the battery cell group (4), and the first isolation seats (5) and the second isolation seats (9) are arranged in parallel. At the same time, the first isolation seats (5) and the second isolation seats (9) have the same composition structure.
4. The battery pack of a solar photovoltaic energy storage system according to claim 3, characterized in that: Six groups of embedded seats (10) are evenly arranged on the first isolation seat (5), and the embedded seats (10) are inserted between two adjacent groups of battery cells, and a heat dissipation space is formed between the two adjacent groups of battery cells.
5. The battery pack of a solar photovoltaic energy storage system according to claim 1, characterized in that: Four groups of support columns (3) are evenly arranged on the surface of the base plate (1), and screw holes are opened on the tops of the support columns (3). At the same time, four groups of through holes are evenly arranged on the surface of the cover plate (6), and the sizes of the screw holes are matched with the sizes of the fixing bolts (7), and the fixing bolts (7) pass through the through holes and are screwed inside the screw holes.
6. The battery pack of a solar photovoltaic energy storage system according to claim 1, characterized in that: Two sets of lower limit seats (2) are fixedly arranged at both ends of the bottom plate (1), and two sets of upper limit seats (61) are fixedly arranged at both ends of the cover plate (6). At the same time, a limit groove (13) is provided on the inner wall of the outer protective box (12), and the lower limit seat (2) and the upper limit seat (61) are slidably arranged inside the limit groove (13).