Temperature protection device for wind-solar energy storage battery

Abstract

The utility model discloses a temperature protection device for a wind-solar energy storage battery, which relates to the technical field of storage batteries, and comprises a protection box and a box cover covering the protection box, the protection box is a box body with a smaller upper end opening and a larger inner cavity, a flexible box is fixed in the bottom of the opening of the protection box, the flexible box is an uncovered box body, and the upper end of the box cover is provided with an opening. A flexible box is arranged in the protection box, a sealed filling cavity is formed between the outer wall of the flexible box and the inner wall of the protection box, a storage battery is placed in the flexible box, and the height of the upper end of the storage battery is consistent with that of the upper end of the flexible box. Therefore, the effect of omni-directional bump detection can be achieved by installing only one pressure sensor, the number of pressure sensors needed for achieving comprehensive detection is greatly reduced, the equipment cost of the wind-solar energy storage battery temperature protection device is reduced, and large-area application and popularization are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of storage batteries, and in particular to a temperature protection device for wind and solar energy storage batteries. Background Art

[0002] Most of the wind and solar energy storage batteries on the market do not have devices to monitor their bulging during use, and most of the wind and solar energy storage batteries are buried underground for use, which makes it difficult for maintenance personnel to promptly detect bulging conditions in the batteries.

[0003] In order to solve the above problems, a patent document with publication number "CN216720135U" discloses a temperature protection device for a wind-solar energy storage battery, including a thermal insulation shell, a thermal insulation cover and a battery. The inner side of the lower end of the thermal insulation shell is fixedly connected to the battery through an auxiliary pad block, and the thermal insulation shell and the front and rear ends of the battery are fixedly connected with adjustment pads. A pressure sensor is provided between the adjustment pads. The upper end of the thermal insulation shell is fixedly connected to the thermal insulation cover through a fixing screw, an alarm is fixedly connected to the middle of the upper end of the thermal insulation cover, and a rubber ring is fixedly connected to the inner side of the thermal insulation cover.

[0004] Based on the above search, it is found that although the existing technology can detect battery bulging through pressure sensors to prompt the staff to replace the battery in time, since the position of the battery bulging is uncontrollable, that is, bulging may occur at different positions on all surfaces of the battery, more pressure sensors need to be installed to achieve more comprehensive bulging detection. The deployment of a large number of sensors will undoubtedly increase the cost of the device, which is not conducive to popularization and use. Therefore, a wind and solar energy storage battery temperature protection device is needed. Utility Model Content

[0005] The purpose of this application is to provide a temperature protection device for a wind-solar energy storage battery to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a temperature protection device for a wind-solar energy storage battery, comprising a protection box and a box cover arranged above the protection box, the protection box being a box body with a small upper opening and a large internal cavity, a flexible box being fixed in the bottom of the opening of the protection box, the flexible box being a box body without a cover, and a closed filling cavity being formed between the outer wall of the flexible box and the inner wall of the protection box;

[0007] A battery is placed in the flexible box, and the height of the upper end of the battery is consistent with the height of the upper end of the flexible box;

[0008] The lower end of the box cover protrudes into the upper end opening of the protection box, and the lower end surface of the box cover is tightly fitted with the upper end surface of the battery;

[0009] An installation cavity connected to the filling cavity is provided on the inner top wall of the opening extension edge of the protection box, a pressure sensor is fixed on the inner top wall of the installation cavity, a sliding movable sheet is installed below the pressure sensor, the movable sheet blocks the installation cavity, a gap exists between the movable sheet and the contact of the pressure sensor, and the movable sheet abuts against the contact at the lower end of the pressure sensor after moving upward;

[0010] An alarm device electrically connected to the pressure sensor is fixed on the box cover, and a hole for the wire to penetrate and connect with the battery terminal is opened on the box cover.

[0011] As a further supplement to this solution, a limiting slide groove is provided in the installation cavity, and the diameter of the limiting slide groove is larger than the diameter of the installation cavity;

[0012] The movable piece is slidably connected in the limiting sliding groove, and when the movable piece is located at the lowest position, its height is higher than the height of the opening of the installation cavity.

[0013] As a further supplement to this solution, a reaction groove is provided on the upper surface of the box cover, and two mass capsules are placed in the reaction groove, and the two mass capsules are filled with power gas and color powder respectively. When the two mass capsules are punctured, the power gas impacts the color powder so that the color powder is ejected out of the reaction groove;

[0014] Two ejector pins are fixed on the upper end of the movable sheet. The upper ends of the two ejector pins are movable and penetrate the top of the protection box and the bottom of the box cover and extend into the reaction tank. When the two ejector pins are at the low point, there are gaps between the upper ends of the two ejector pins and the two mass-containing bags respectively.

[0015] When the two ejectors rise with the movable sheet, the top tips of the two ejectors pierce the two mass-containing sacs respectively.

[0016] As a further supplement to the present solution, an extension tube is detachably fixed to the top of the box cover, the extension tube is connected to the reaction tank, and the upper end of the extension tube extends to the ground.

[0017] As a further supplement to the present solution, two support plates are fixedly connected in the reaction tank, and the two mass-containing capsules are fixedly placed on the two support plates respectively. Both support plates are provided with through holes for the ejector pins to pass through.

[0018] As a further supplement to this solution, an addition hole connected to the filling cavity is provided at the upper end of the side of the protection box away from the installation cavity, a sealing plug is provided in the addition hole to seal the addition hole, and a groove connected to the addition hole is also provided on the upper surface of the protection box.

[0019] In summary, the technical effects and advantages of the utility model are:

[0020] 1. In the utility model, by setting the flexible box, the pressure sensor and the movable sheet, when a bulge occurs at any position of the battery, the volume of the bulged position of the battery increases, thereby squeezing the flexible box, and then squeezing the air or water in the filling cavity, causing the air or water pressure in the filling cavity to increase and squeeze the movable sheet. When the movable sheet is squeezed, it moves up and abuts against the pressure sensor, so that the pressure sensor triggers the alarm after detecting the pressure, thereby achieving the purpose of triggering the alarm when the battery bulges to prompt the staff to replace the battery in time;

[0021] At the same time, when bulging occurs on any surface of the battery, the flexible box can be squeezed, so that the bulging can be detected in all directions by installing only one pressure sensor, which greatly reduces the number of pressure sensors required for comprehensive detection and reduces the equipment cost of the wind and solar energy storage battery temperature protection device, which is conducive to large-scale promotion and use.

[0022] 2. In the utility model, through the arrangement of the ejector pins and the mass-containing bag, when the two ejector pins rise with the movable sheet, the top tips of the two ejector pins pierce the two mass-containing bags respectively, so that the power gas impacts the color powder, and the color powder is rushed out to the ground along the extension tube after receiving the impact of the power gas, which can facilitate the staff to quickly locate the specific position of the battery that needs to be replaced, enhance the prompt effect, and also can reduce the time for the staff to find the battery, speed up the replacement efficiency, and ensure the safety of the battery when using. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;

[0025] Figure 2 It is a schematic cross-sectional structural diagram in this embodiment;

[0026] Figure 3 for Figure 2 A magnified view of the structure at A;

[0027] Figure 4 for Figure 2 Enlarged view of the structure at B in the figure.

[0028] In the figure: 1. Protection box; 11. Filling cavity; 12. Installation cavity; 13. Limiting slide groove; 14. Adding hole; 15. Sealing plug; 16. Groove; 2. Box cover; 21. Reaction tank; 22. Support plate; 3. Alarm; 4. Battery; 5. Flexible box; 6. Pressure sensor; 7. Movable sheet; 71. Ejector pin; 8. Mass bladder; 9. Extension tube. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example: Reference Figure 1-4 The wind-solar energy storage battery temperature protection device shown comprises a protection box 1 and a box cover 2 arranged on the top of the protection box 1. The box cover 2 covers the protection box 1 and is fixed to each other by buckles. The protection box 1 is a box body with a small upper opening and a large internal cavity. A flexible box 5 is fixed in the bottom of the opening of the protection box 1. The flexible box 5 is made of a flexible material commonly used in the prior art (such as rubber, elastic cloth), which has a certain elastic deformation performance and can be deformed when squeezed. The flexible box 5 is a coverless box body. A closed filling cavity 11 is formed between the outer wall of the flexible box 5 and the inner wall of the protection box 1. The filling cavity 11 is filled with air or water to form an insulation layer, and the protection effect is better.

[0031] A battery 4 is placed in the flexible box 5, and the height of the upper end of the battery 4 is consistent with the height of the upper end of the flexible box 5;

[0032] The lower end of the box cover 2 protrudes into the upper end opening of the protection box 1, and the lower end surface of the box cover 2 is tightly fitted with the upper end surface of the battery 4;

[0033] An installation cavity 12 connected to the filling cavity 11 is provided on the inner top wall of the opening extension edge of the protection box 1. A pressure sensor 6 is fixed to the inner top wall of the installation cavity 12. A sliding movable sheet 7 is installed below the pressure sensor 6. The movable sheet 7 blocks the installation cavity 12. There is a gap between the movable sheet 7 and the contact of the pressure sensor 6. After the movable sheet 7 moves upward, it abuts against the contact at the lower end of the pressure sensor 6.

[0034] An alarm 3 electrically connected to the pressure sensor 6 is fixed on the box cover 2 , and a hole is provided on the box cover 2 for a wire to pass through and connect to a terminal of the battery 4 .

[0035] Based on the above structure, when a bulge occurs at any position of the battery 4, the volume of the bulged position of the battery 4 increases, thereby squeezing the flexible box 5, and further squeezing the air or water in the filling cavity 11, causing the air or water pressure in the filling cavity 11 to increase and squeeze the movable sheet 7. When the movable sheet 7 is squeezed, it moves up and abuts against the pressure sensor 6, so that the pressure sensor 6 triggers the alarm 3 after detecting the pressure, thereby achieving the purpose of triggering an alarm when the battery 4 bulges to prompt the staff to replace the battery 4 in time;

[0036] At the same time, when any surface of the battery 4 bulges, the flexible box 5 can be squeezed (because the upper surface of the battery 4 is in contact with the bottom surface of the box cover 2, when the upper surface of the battery 4 is full and bulged, it can move downward under the reaction force of the box cover 2, thereby squeezing the bottom of the flexible box 5). Therefore, by installing only one pressure sensor 6, the effect of all-round detection of bulges can be achieved, which greatly reduces the number of pressure sensors 6 required for comprehensive detection and reduces the equipment cost of the wind and solar energy storage battery temperature protection device, which is conducive to large-scale promotion and use.

[0037] Furthermore, a limiting slide groove 13 is provided in the installation cavity 12, and the diameter of the limiting slide groove 13 is larger than the diameter of the installation cavity 12;

[0038] The movable sheet 7 is slidably connected in the limiting slide groove 13, and when the movable sheet 7 is at the lowest position, its height is higher than the height of the opening of the installation cavity 12, thereby realizing the limited sliding installation of the movable sheet 7, so that the movable sheet 7 can apply pressure to the pressure sensor 6 within the limited range, avoiding excessive pressure caused by the movable sheet 7 on the pressure sensor 6.

[0039] Furthermore, a reaction groove 21 is provided on the upper surface of the box cover 2. Two mass capsules 8 are placed in the reaction groove 21. The two mass capsules 8 are filled with power gas and color powder respectively. When the two mass capsules 8 are punctured, the power gas impacts the color powder so that the color powder is ejected out of the reaction groove 21.

[0040] It should be noted that the power gas adopts the pressurized gas (such as nitrogen) commonly used in the prior art and applicable to the present embodiment, and the color powder adopts the dry powder (such as colored rice powder) commonly used in the prior art and applicable to the present embodiment. In addition, the container 8 containing the power gas can be arranged at the lower end of the container 8 containing the color powder (horizontally arranged in the figure, but still having the power to impact the color powder upward), so as to achieve a better impact effect.

[0041] Two ejector pins 71 are fixed to the upper end of the movable sheet 7. The upper ends of the two ejector pins 71 are movable and penetrate the top of the protection box 1 and the bottom of the box cover 2 and extend into the reaction tank 21. When the two ejector pins 71 are at the low point, there are gaps between the upper ends of the two ejector pins 71 and the two mass-containing bags 8 respectively.

[0042] The top of the box cover 2 is detachable and is shown as a threaded connection in the figure. Other common connection methods commonly used in the prior art and applicable to this embodiment may also be used, such as an extension tube 9 fixedly connected by a flange structure, the extension tube 9 is connected to the reaction tank 21, and the upper end of the extension tube 9 extends to the ground.

[0043] When the two ejector pins 71 rise with the movable sheet 7, the top tips of the two ejector pins 71 pierce the two mass capsules 8 respectively, so that the power gas impacts the color powder. After the color powder is impacted by the power gas, it rushes out to the ground along the extension tube 9. The staff can quickly and accurately find the specific position of the battery 4 that needs to be replaced according to the position of the color powder, which can enhance the prompt effect, reduce the time for the staff to find the battery 4, speed up the replacement efficiency, and ensure the safety of the battery 4 when in use.

[0044] Furthermore, two support plates 22 are fixedly connected in the reaction tank 21 , and the two mass capsules 8 are fixedly placed on the two support plates 22 , respectively, so that new mass capsules 8 can be placed or replaced easily. Both support plates 22 are provided with through holes for the ejector pin 71 to pass through.

[0045] Furthermore, a filling hole 14 connected to the filling cavity 11 is provided at the upper end of the side of the protection box 1 away from the installation cavity 12, and a sealing plug 15 for sealing the adding hole 14 is plugged in the adding hole 14. A groove 16 connected to the adding hole 14 is also provided on the upper surface of the protection box 1 to facilitate the addition of water or air into the filling cavity 11, so that a certain pressure is maintained in the filling cavity 11.

[0046] Working principle of the utility model: in daily use, when any position of the storage battery 4 bulges, the volume of the bulged position of the storage battery 4 increases, thereby squeezing the flexible box 5, and then squeezing the air or water in the filling cavity 11, causing the air or water pressure in the filling cavity 11 to increase and squeeze the movable sheet 7, and the movable sheet 7 moves up and abuts against the pressure sensor 6 when being squeezed, so that the pressure sensor 6 triggers the alarm 3 after detecting the pressure, thereby achieving the purpose of triggering the alarm when the storage battery 4 bulges to prompt the staff to replace the storage battery 4 in time;

[0047] At the same time, when bulging occurs on any surface of the battery 4, the flexible box 5 can be squeezed, so that the bulging can be detected in all directions by installing only one pressure sensor 6, which greatly reduces the number of pressure sensors 6 required for comprehensive detection and reduces the equipment cost of the temperature protection device for the wind and solar energy storage battery, which is conducive to large-scale promotion and use.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A temperature protection device for a wind and solar energy storage battery, comprising a protection box (1) and a box cover (2) arranged above the protection box (1), characterized in that: The protection box (1) is a box body with a smaller opening at the upper end and a larger internal cavity. A flexible box (5) is fixed inside the open bottom of the protection box (1). The flexible box (5) is a box body without a cover. A closed filling cavity (11) is formed between the outer wall of the flexible box (5) and the inner wall of the protection box (1). A storage battery (4) is placed in the flexible box (5), and the height of the upper end of the storage battery (4) is consistent with the height of the upper end of the flexible box (5); The lower end of the box cover (2) protrudes into the upper end opening of the protection box (1), and the lower end surface of the box cover (2) is tightly fitted against the upper end surface of the storage battery (4); The top wall of the opening extension edge of the protection box (1) is provided with a mounting cavity (12) which is in communication with the filling cavity (11); a pressure sensor (6) is fixed to the top wall of the mounting cavity (12); a sliding movable sheet (7) is installed below the pressure sensor (6); the movable sheet (7) blocks the mounting cavity (12); a gap exists between the movable sheet (7) and a contact of the pressure sensor (6); and the movable sheet (7) abuts against a contact at the lower end of the pressure sensor (6) after moving upward; An alarm (3) electrically connected to the pressure sensor (6) is fixed on the box cover (2), and a hole is provided on the box cover (2) for a wire to pass through and connect to a battery (4) terminal.

2. The temperature protection device for wind-solar energy storage battery according to claim 1 is characterized in that: A limiting sliding groove (13) is provided in the installation cavity (12), and the diameter of the limiting sliding groove (13) is larger than the diameter of the installation cavity (12); The movable sheet (7) is slidably connected in the limiting sliding groove (13), and when the movable sheet (7) is at the lowest position, its height is higher than the height of the opening of the installation cavity (12).

3. The temperature protection device for wind-solar energy storage battery according to claim 2 is characterized in that: A reaction groove (21) is provided on the upper surface of the box cover (2), and two mass capsules (8) are placed in the reaction groove (21). The two mass capsules (8) are filled with power gas and color powder respectively. When the two mass capsules (8) are punctured, the power gas impacts the color powder so that the color powder is ejected out of the reaction groove (21); Two ejector pins (71) are fixed to the upper end of the movable sheet (7), and the upper ends of the two ejector pins (71) are movable to penetrate the top of the protection box (1) and the bottom of the box cover (2) and extend into the reaction tank (21). When the two ejector pins (71) are at the low point, there are gaps between the upper ends of the two ejector pins (71) and the two mass-containing bags (8). When the two ejector pins (71) rise with the movable sheet (7), the top tips of the two ejector pins (71) pierce the two content bags (8) respectively.

4. The temperature protection device for wind-solar energy storage battery according to claim 3 is characterized in that: An extension tube (9) is detachably fixed to the top of the box cover (2), the extension tube (9) is in communication with the reaction tank (21), and the upper end of the extension tube (9) extends to the ground.

5. The temperature protection device for wind-solar energy storage battery according to claim 4 is characterized in that: Two support plates (22) are fixedly connected in the reaction tank (21), and the two mass-containing capsules (8) are respectively fixedly placed on the two support plates (22). Both of the two support plates (22) are provided with through holes for the ejector pins (71) to pass through.

6. The temperature protection device for wind-solar energy storage battery according to claim 1 is characterized in that: The upper end of the protection box (1) away from the installation cavity (12) is provided with a filling hole (14) communicating with the filling cavity (11); a sealing plug (15) is provided inside the filling hole (14) for sealing the filling hole (14); and a groove (16) communicating with the filling hole (14) is also provided on the upper surface of the protection box (1).

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