Battery box, tray and battery cluster device

Abstract

The utility model relates to the technical field of energy storage batteries, in particular to a battery box, a tray and a battery cluster device, which comprises a battery box, the battery box comprises a bottom plate and a box body arranged above the bottom plate, and first guide rails are arranged outside the left side plate and the right side plate of the box body; second guide rails are arranged in a left side plate and a right side plate of the tray, and the battery box is slidably connected with the tray through the first guide rails and the second guide rails; the locking assembly comprises at least one group of locking parts arranged on the box body and a locking hole formed in the tray; the plugging assembly comprises a male end assembly arranged on the rear side of the box body, a female end assembly arranged on the rear side of the tray and used for being plugged with the male end assembly in a matched manner, and a fuse box arranged on the rear side of the tray; through the arrangement, the production and installation efficiency and the use safety are effectively improved.

Description

Technical Field

[0001] The utility model relates to a battery box and a tray, and a battery cluster device, belonging to the technical field of energy storage batteries. Background Art

[0002] With the rapid development of my country's new energy power generation sector, its supporting issues also need to be resolved. For example, photovoltaic power generation may be unstable and unable to generate electricity on demand. Therefore, energy storage battery systems are needed to cooperate with peak and frequency regulation for normal transmission and distribution. This shows that energy storage battery systems are playing an increasingly important role in my country's new energy power system.

[0003] In the prior art, most energy storage battery boxes are directly fixed to the battery box and the battery cluster bracket by screws, which has poor safety in use and cannot achieve rapid detachment of the battery box in an emergency. Therefore, it is very easy to involve other battery boxes in the system, causing greater losses. In addition, the power wiring harness and communication wiring harness connecting the energy storage battery boxes in the prior art need to be manually installed, and cannot achieve quick connection. The installation is cumbersome, time-consuming and labor-intensive. Therefore, it is of practical significance to study a new type of battery box, tray, and battery cluster device. Utility Model Content

[0004] The utility model aims to solve the deficiencies in the prior art and provides a battery box, a tray and a battery cluster device.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A battery box and a tray, comprising: a battery box, wherein the battery box comprises a bottom plate and a box body arranged above the bottom plate, the bottom of the box body is open and the left and right side panels of the box body are both provided with a first guide rail on the outside; a tray, wherein the left and right side panels of the tray are both provided with a second guide rail, and the battery box and the tray are slidably connected by the first guide rail and the second guide rail; a locking assembly, wherein the locking assembly comprises at least one group of locking parts provided on the box body and at least one locking hole opened on the tray and matched with the locking parts, and the battery box and the tray are locked by pressing down or unlocked by lifting up the locking parts; a plug-in assembly, wherein the plug-in assembly comprises a male end assembly provided on the rear side of the box body and a female end assembly provided on the rear side of the tray for matching and plugging with the male end assembly, and a fuse box provided on the rear side of the tray.

[0007] Furthermore, a flange is formed by extending outwardly from the peripheral side of the bottom of the box body, the bottom plate is riveted to the flange, and the locking portion is provided through the flange on the front side of the box body.

[0008] Furthermore, the bottom plate edge protrudes from the peripheral side of the flange and the bottom plate edge abuts against the left and right side plates of the tray.

[0009] Furthermore, the first guide rail and the second guide rail are T-shaped guide rails.

[0010] Furthermore, the male end component includes a positive male end, a negative male end and a communication plug male end, and the communication plug male end is arranged between the positive male end and the negative male end. The female end component includes a positive female end, a negative female end and a communication plug female end, and the communication plug female end is arranged between the positive female end and the negative female end.

[0011] Furthermore, the positive electrode male terminal and the negative electrode male terminal are both convex platform structures, and the positive electrode female terminal and the negative electrode female terminal are both concave platform structures.

[0012] Furthermore, at least one group of first ventilation openings is provided on the front side of the box body, and at least one group of second ventilation openings is provided on the rear side of the box body.

[0013] Furthermore, the relationship between the vertical distance L1 between the midpoint of the first vent and the top of the box, the vertical distance L2 between the midpoint of the second vent and the top of the box, and the box height L3 satisfies L1:L2:L3=(0.7-0.8):(0.15-0.25):1.

[0014] The utility model also provides a battery cluster device, comprising the battery box and tray, and a bracket for placing the battery box and the tray, wherein a plurality of L-shaped support plates for supporting and fixing the tray are provided on the left and right sides of the bracket.

[0015] Furthermore, the front side of the support plate is bent downward to form a first fixed block, the front side of the tray is bent downward to form a second fixed block that cooperates with the first fixed block to fix the tray, and the rear side of the support plate is bent upward to form a third fixed block, and the third fixed block is inserted into the supporting hole opened on the rear side of the tray.

[0016] The beneficial effects of the utility model are:

[0017] (1) The battery box and the tray are precisely positioned and docked through the guide rail device and quickly locked or unlocked through the locking assembly, which is easy to disassemble, so that the battery box and the tray can be quickly combined and disassembled, solving the problem of cumbersome installation and disassembly of the battery box and the inability to quickly withdraw the battery box in an emergency, effectively improving production installation efficiency and use safety.

[0018] (2) By setting up the plug-in assembly, electrical connection can be quickly achieved, further improving the production and installation efficiency. In addition, by setting up the fuse box, when a plug-in failure occurs, the fuse protection can be quickly performed, further improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a perspective diagram of the front side of the battery box provided in Example 1 of the present utility model;

[0020] Figure 2 This is a front view of the battery box provided in Example 1 of the present utility model;

[0021] Figure 3 This is a rear view of the battery box provided in Example 1 of the present utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the rear side of the battery box provided in Example 1 of the present utility model;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the tray provided in Example 1 of the present utility model;

[0024] Figure 6 This is a front view of a tray provided in Example 1 of the present utility model;

[0025] Figure 7 This is a schematic diagram of the assembly of the battery box and tray provided in Example 1 of the present utility model;

[0026] Figure 8 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 9 This is a schematic diagram of the battery cluster assembly provided by Example 2 of the present utility model;

[0028] Figure 10 A schematic diagram of the three-dimensional structure of an L-shaped support plate provided in Example 2 of the present utility model;

[0029] Figure 11 This is a schematic diagram of the overall effect of the battery cluster provided by Example 2 of the present utility model.

[0030] Figure markings: 1. battery box; 11. bottom plate; 12. box body; 13. first guide rail; 14. flange; 15. first vent; 16. second vent; 2. tray; 21. second guide rail; 22. locking hole; 23. second fixing block; 24. supporting hole; 3. locking part; 4. male terminal assembly; 41. positive male terminal; 42. negative male terminal; 43. communication plug male terminal; 5. female terminal assembly; 51. positive female terminal; 52. negative female terminal; 53. communication plug female terminal; 6. fuse box; 7. bracket; 8. L-shaped support plate; 81. first fixing block; 82. third fixing block. DETAILED DESCRIPTION

[0031] The following is a detailed description of the specific embodiments of the present invention. The present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used are only for describing specific embodiments and are not intended to limit the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] Example 1

[0036] like Figure 1 — Figure 7 As shown, the utility model provides a battery box and a tray, including a battery box 1, wherein the battery box 1 includes a bottom plate 11 and a box body 12 arranged above the bottom plate 11, the bottom of the box body 12 is open and the left and right side panels of the box body 12 are both provided with first guide rails 13 on the outside; a tray 2, wherein the left and right side panels of the tray 2 are both provided with second guide rails 21, and the battery box 1 and the tray 2 are slidably connected through the first guide rails 13 and the second guide rails 21; a locking assembly, wherein the locking assembly includes at least one group of locking parts 3 provided on the box body 12 and at least one locking hole 22 opened on the tray 2 and cooperating with the locking part 3, and the battery box 1 and the tray 2 are locked by pressing down or unlocked by lifting up the locking part 3; a plug-in assembly, wherein the plug-in assembly includes a male end assembly 4 arranged on the rear side of the box body 12 and a female end assembly 5 arranged on the rear side of the tray 2 for cooperating with the male end assembly 4 and a fuse box 6 arranged on the rear side of the tray 2.

[0037] It should be pointed out that the locking part 3 described in the embodiment of the present invention includes a pin, which is arranged in the shell, and a handle is hinged at one end of the pin. When the handle is pressed down, the end of the pin is inserted into the locking hole 22 for locking, and a spring is provided on the part of the pin located in the shell or is connected to an elastic rope. The spring or elastic band is used to provide a certain downward force in the locked state to prevent mislocking under shaking. The specific shape of the pin can be designed based on the specific structure of the locking hole 22 to be inserted, which will not be elaborated here. The locking part 3 can also be a buckle or a pin; under the premise of ensuring the locking effect, in order to balance the production cost and the installation and operation process, the embodiment of the present invention preferably provides two groups of locking parts 3, and correspondingly provides two locking holes 22 on the tray 2.

[0038] Through the above settings, it plays a variety of roles. First, the battery box 1 and the tray 2 are precisely positioned and docked through the guide rail device and quickly locked or unlocked through the locking assembly, which is easy to disassemble, so that the battery box 1 and the tray 2 can be quickly combined and disassembled, solving the problems of cumbersome installation and disassembly of the battery box 1 and the inability to quickly withdraw the battery box 1 in an emergency, effectively improving the production installation efficiency and use safety; secondly, by setting the plug-in assembly, electrical connection can be quickly achieved, further improving the production installation efficiency, and by setting the fuse box 6, when a plug-in failure occurs, it can quickly perform fuse protection, further improving the use safety.

[0039] Specifically, such as Figure 1 、 Figure 2 、 Figure 8 As shown, a flange 14 is formed extending outwardly from the circumferential side of the bottom of the box body 12, and the bottom plate 11 is riveted to the flange 14. The locking portion 3 is provided through the flange 14 on the front side of the box body 12. The provision of the flange 14 provides a mounting position for the locking portion 3. Compared with installing the locking portion 3 on the front side plate of the box body 12, the size of the locking portion 3 is reduced by providing the locking portion 3 through the flange 14 on the front side of the box body 12, thereby avoiding the problem of unstable locking caused by the excessive size of the locking portion 3. In addition, the provision of the flange 14 can also play a reinforcing role, reducing the probability of deformation of the box body 12 during use, thereby helping to extend its service life.

[0040] Specifically, such as Figure 8As shown, the edge of the bottom plate 11 protrudes from the side of the flange 14 and the edge of the bottom plate 11 abuts against the left and right side plates of the tray 2. It can be understood that the edge of the bottom plate 11 protruding from the side of the flange 14 means that the length of each side of the bottom plate 11 is greater than the length of each side of the flange 14; by setting the edge of the bottom plate 11 protruding from the side of the flange 14, direct contact between the flange 14 and the tray 2 can be avoided, further reducing the probability of deformation of the box body 12 during use; by setting the edge of the bottom plate 11 abutting against the left and right side plates of the tray 2, the bottom plate 11 can also play a limiting role, avoiding the problem of electrical disconnection caused by the battery box 1 shaking left and right during operation, and there is a gap between the box body 12 and the tray 2, so that the heat dissipation effect is better, which helps to improve working stability.

[0041] Specifically, such as Figure 1 — Figure 7 As shown, the first guide rail 13 and the second guide rail 21 are T-shaped guide rails. By setting them as T-shaped guide rails, the pressure-bearing capacity is better, which helps to maintain a firm connection between the battery box 1 and the tray 2, prolongs its service life, and can also avoid the problem of the battery box 1 shaking up and down during operation, resulting in disconnection of the electrical connection, further improving the working stability. It should be pointed out that the left and right side panels of the tray 2 are provided with through holes at the positions where the second guide rails 21 are installed. The through holes are long strips with a size smaller than the size of the second guide rails 21. By providing through holes, the deformation of the left and right side panels of the tray 2 during use can be avoided, further ensuring a firm connection between the battery box 1 and the tray 2.

[0042] Specifically, such as Figure 3 — Figure 6 As shown, the male terminal assembly 4 includes a positive male terminal 41, a negative male terminal 42, and a communication plug male terminal 43, and the communication plug male terminal 43 is arranged between the positive male terminal 41 and the negative male terminal 42. The female terminal assembly 5 includes a positive female terminal 51, a negative female terminal 52, and a communication plug female terminal 53, and the communication plug female terminal 53 is arranged between the positive female terminal 51 and the negative female terminal 52. The male terminal assembly 4 and the female terminal assembly 5 are plugged together to achieve electrical connection. By arranging the communication plug male terminal 43 between the positive male terminal 41 and the negative male terminal 42 and the communication plug female terminal 53 between the positive female terminal 51 and the negative female terminal 52, a certain distance is maintained between the positive and negative electrodes to avoid the positive and negative electrodes being too close to each other and affecting each other or even causing a short circuit.

[0043] Specifically, such as Figure 4As shown, the positive male terminal 41 and the negative male terminal 42 are both convex structures, and the positive female terminal 51 and the negative female terminal 52 are both concave structures. By setting the male terminal as a convex structure and the female terminal as a concave structure, the difficulty of plugging in can be reduced, over-insertion can be prevented, and damage to the interface caused by over-insertion can be avoided. It also serves as a limiter. When vibration occurs, the bottom end face of the male terminal with a larger diameter abuts the inner end face of the female terminal with a larger inner diameter, reducing the impact of vibration on the plug-in fit.

[0044] Specifically, such as Figure 1 — Figure 4 As shown, at least one set of first vents 15 is provided on the front side of the box 12, and at least one set of second vents 16 is provided on the rear side of the box 12. The provision of the first vents 15 and the second vents 16 creates air convection in the battery box 1, which helps to enhance the heat dissipation effect. Preferably, the relationship between the vertical distance L1 between the midpoint of the first vent 15 and the top of the box 12, the vertical distance L2 between the midpoint of the second vent 16 and the top of the box 12, and the height L3 of the box 12 satisfies L1:L2:L3 = (0.7-0.8):(0.15-0.25):1. Through the definition of the above relationship, its role is to further coordinate the working stability of the battery box 1 and the tray 2. If L1 is greater than 0.8 times of L3 and L2 is less than 0.15 times of L3, although the rising trend of hot air is used for better heat dissipation, the first vent 15 is too close to the bottom of the box 12, and the second vent 16 is too close to the top of the box 12, which may easily lead to the local structural strength of the box 12 becoming weaker and more prone to deformation. If L1 is less than 0.7 times of L3 and L2 is greater than 0.25 times of L3, although the structural strength becomes stronger, the heat dissipation area becomes smaller and the heat dissipation effect becomes worse. Only when L1:L2:L3=(0.7-0.8):(0.15-0.25):1, can sufficient structural strength be maintained, deformation be avoided, service life be extended, and better heat dissipation effect be ensured.

[0045] Example 2

[0046] The utility model provides a battery cluster device, such as Figure 9 — Figure 11As shown, it includes several battery boxes and trays as described in Example 1, and also includes a bracket 7 for placing the battery boxes 1 and trays 2. A plurality of L-shaped support plates 8 are provided on the left and right sides of the bracket 7 for supporting and fixing the trays 2. It should be noted that the L-shaped support plates 8 on the left and right sides of the bracket 7, whose horizontal projections overlap, constitute a group. The number of L-shaped support plates 8 can be increased or decreased according to the number of battery boxes 1 and trays 2 required to be placed during actual operation. In the embodiment of the present utility model, the battery cluster is equipped with six groups of battery boxes 1 and trays 2; the L-shaped support plates 8 are fixedly connected to the bracket 7 by welding.

[0047] Specifically, such as Figure 10 As shown, the front side of the support plate is bent downward to form a first fixing block 81, and the front side of the tray 2 is bent downward to form a second fixing block 23 that cooperates with the first fixing block 81 to fix the tray 2. Screw holes are provided on the first fixing block 81 and the second fixing block 23. The first fixing block 81 and the second fixing block 23 are screwed to fix the tray 2. The rear side of the support plate is bent upward to form a third fixing block 82. The third fixing block 82 is inserted into the supporting hole 24 provided on the rear side of the tray 2. Through the above arrangement, the position of the tray 2 can be firmly fixed, and by providing the downward-bending first fixing block 81 and the upward-bending second fixing block 23, stress can be more reasonably distributed, thereby avoiding local stress concentration after the tray 2 is installed in place, preventing the tray 2 from deformation, and extending the service life of the tray 2. In addition, the position can be fine-tuned according to the installation requirements during the installation process, and the adaptability is better.

[0048] The technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are exhaustively listed. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] For ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all fall within the scope of protection of the utility model. The scope of protection of the utility model shall be based on the attached claims.

Claims

1. A battery box and tray, characterized in that: include: A battery box, comprising a bottom plate and a box body disposed above the bottom plate, wherein the bottom of the box body is open and first guide rails are disposed on the outside of left and right side panels of the box body; A tray, wherein second guide rails are provided inside the left and right side panels of the tray, and the battery box and the tray are slidably connected through the first guide rails and the second guide rails; A locking assembly, comprising at least one set of locking parts provided on the box body and at least one locking hole provided on the tray and cooperating with the locking parts, wherein the battery box and the tray are locked or unlocked by pressing down or lifting the locking parts; The plug-in assembly comprises a male end assembly arranged at the rear side of the box body, a female end assembly arranged at the rear side of the tray and used for mating with the male end assembly, and a fuse box arranged at the rear side of the tray.

2. A battery box and tray according to claim 1, characterized in that: A flange is formed by extending outwardly from the peripheral side of the bottom of the box body, the bottom plate is riveted to the flange, and the locking portion is arranged through the flange on the front side of the box body.

3. A battery box and tray according to claim 2, characterized in that: The bottom plate edge protrudes from the peripheral side of the flange and the bottom plate edge abuts against the left and right side plates of the tray.

4. A battery box and tray according to claim 1 or 3, characterized in that: The first guide rail and the second guide rail are T-shaped guide rails.

5. A battery box and tray according to claim 1, characterized in that: The male end component includes a positive male end, a negative male end and a communication plug male end, and the communication plug male end is arranged between the positive male end and the negative male end. The female end component includes a positive female end, a negative female end and a communication plug female end, and the communication plug female end is arranged between the positive female end and the negative female end.

6. A battery box and tray according to claim 5, characterized in that: The positive electrode male terminal and the negative electrode male terminal are both convex platform structures, and the positive electrode female terminal and the negative electrode female terminal are both concave platform structures.

7. A battery box and tray according to claim 1, characterized in that: At least one group of first ventilation openings is provided on the front side of the box body, and at least one group of second ventilation openings is provided on the rear side of the box body.

8. A battery box and tray according to claim 7, characterized in that: The relationship between the vertical distance L1 between the midpoint of the first vent and the top of the box, the vertical distance L2 between the midpoint of the second vent and the top of the box, and the box height L3 satisfies L1:L2:L3=(0.7-0.8):(0.15-0.25):

1.

9. A battery cluster device, characterized in that: It comprises several battery boxes and trays as described in any one of claims 1 to 8, and also comprises a bracket for placing the battery boxes and trays, and several L-shaped support plates are provided on the left and right sides of the bracket for supporting and fixing the tray.

10. The battery cluster device according to claim 9, characterized in that: The front side of the support plate is bent downward to form a first fixing block, the front side of the tray is bent downward to form a second fixing block that cooperates with the first fixing block to fix the tray, and the rear side of the support plate is bent upward to form a third fixing block, and the third fixing block is inserted into the supporting hole opened on the rear side of the tray.

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