Battery box and energy storage device

Abstract

The utility model relates to a battery box and an energy storage device, and relates to the field of new energy batteries. The utility model proposes a battery box, including a box body, a bracket and a fixing member; the bracket is provided with a first limiting portion and a second limiting portion, the first limiting portion is connected to the bottom of the box body, and the second limiting portion is arranged at the top of the box body, and the first limiting portion and the second limiting portion are used to restrict the tendency of the box body to move upward or downward; the first end of the fixing member is detachably connected to the box body, and the second end is detachably connected to the first limiting portion. By providing a bracket, the bracket restricts the tendency of the box body to move downward through the first limiting portion, and also restricts the tendency of the box body to move upward through the second limiting portion; by providing a fixing member, the fixing member fixes the bracket and the box body to prevent the box body from moving forward or backward along the bracket; the battery box provided in this way has a simple assembly process, and can also safely and effectively fix the battery box in the energy storage device, with adequate safety protection and high safety performance.

Description

Technical Field

[0001] The utility model relates to the field of new energy batteries, and in particular to a battery box and an energy storage device. Background Art

[0002] However, the inventors have found that in existing energy storage containers, the battery box is usually directly connected and fixed to the external structure, and the battery cannot be safely and reliably fixed, the safety protection is not in place, and the safety performance is low. Utility Model Content

[0003] The purpose of the utility model is to provide a battery box and an energy storage device, which can safely and effectively fix the battery box in the energy storage device, with adequate safety protection and high safety performance.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In the first aspect, the utility model proposes a battery box, comprising a box body, a bracket and a fixing member; the box body is used to set a battery module; the bracket is used to connect to an external structure, and the bracket is provided with a first limiting portion and a second limiting portion, the first limiting portion is connected to the bottom of the box body, and the second limiting portion is arranged at the top of the box body, and the first limiting portion and the second limiting portion are used to restrict the tendency of the box body to move upward or downward; the first end of the fixing member is detachably connected to the box body, and the second end is detachably connected to the first limiting portion.

[0006] Optionally, the bracket is further provided with a third limiting portion, the third limiting portion is arranged at an end away from the fixing member, the third limiting portion is in contact with the side wall of the box body and is used to restrict the tendency of the box body to move backward.

[0007] Optionally, the bracket is further provided with a fourth limiting portion, the fourth limiting portion is arranged at an end away from the fixing member, and the fourth limiting portion is used to be engaged with a slot on the lower box body.

[0008] Optionally, the bracket is further provided with a first mounting hole and / or a clamping piece for connecting with the external structure.

[0009] Optionally, the box body comprises an upper box body and a lower box body that are detachably connected, and the flange surface of the upper box body and the lower box body are detachably connected;

[0010] The first limiting portion is connected to the bottom of the lower box body, the second limiting portion is arranged on the top of the flange surface of the upper box body, and the first end of the fixing member is detachably connected to the lower box body.

[0011] Optionally, the box body includes a limiting bracket, and the limiting bracket is detachably connected to the flange surface and the lower box body in sequence through a connecting piece;

[0012] The limiting bracket abuts against the first limiting portion.

[0013] Optionally, the top wall of the upper box body is provided with a plurality of first grooves and second grooves arranged at staggered intervals;

[0014] One end of the first groove is a first opening and the first opening faces the side wall on one side of the box body, and one end of the first groove is a second opening and the second opening faces the side wall on the other side of the box body.

[0015] Optionally, at least two convex ribs arranged at intervals are provided on the upper box body, a first end of the convex rib is connected to the flange surface, and a second end of the convex rib is connected to the side wall of the upper box body.

[0016] Optionally, the box body further comprises an installation panel, on which a second installation port for installing a high-voltage connector, a communication connector, a fuse box, a fire protection interface and a BMU is provided;

[0017] A first mounting opening is provided on the side wall of the upper box body, and the mounting panel is arranged at the first mounting opening and connected to the fixing brackets of the upper box body and the lower box body.

[0018] Optionally, the lower box includes a cooling liquid plate, and a flow channel cavity for circulating cooling liquid is provided in the cooling liquid plate;

[0019] Side beams are provided on both sides of the cooling liquid plate, a hollow cavity is provided in the side beams, and a hoisting hole communicating with the hollow cavity is provided on the side of the side beams;

[0020] A fixing block is disposed at the first end of the side beam, the fixing block is clamped in the hollow cavity and the first end of the fixing member is detachably connected to the fixing block;

[0021] The second end of the side beam is provided with a clamping groove.

[0022] Optionally, the lower box body further comprises a first cross beam, a second cross beam and at least one third cross beam;

[0023] The first crossbeam is disposed at a first end of the cooling liquid plate, the second crossbeam is disposed at a second end of the cooling liquid plate, and the at least one third crossbeam is disposed between the first crossbeam and the second crossbeam;

[0024] Limiting members are provided at one end of the first cross beam and the second cross beam facing the at least one third cross beam and at both ends of the at least one third cross beam.

[0025] Optionally, a plurality of fixing brackets are arranged between the first cross beam and the limiting member.

[0026] In a second aspect, the utility model further proposes an energy storage device, comprising the battery box and cabinet body described above, wherein the bracket is connected to the cabinet body.

[0027] The beneficial effects of the embodiments of the utility model are:

[0028] The battery box proposed by the utility model is provided with a bracket, and the bracket constrains the tendency of the box body to move downward through the first limiting portion, and also constrains the tendency of the box body to move upward through the second limiting portion. In other words, the bracket limits the box body to restrict the upward or downward movement of the box body; by providing a fixing piece, the fixing piece fixes the bracket and the box body to prevent the box body from moving forward or backward along the bracket; the battery box thus provided has a simple assembly process, and can also safely and effectively fix the battery box in the energy storage device, with adequate safety protection and high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is an exploded view of a battery box according to an embodiment of the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the upper box body in the embodiment of the utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the installation panel of the embodiment of the utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the cooling liquid plate of the utility model embodiment;

[0034] Figure 5 It is a cross-sectional view of a cooling liquid plate according to an embodiment of the utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the lower box body of the utility model embodiment;

[0036] Figure 7 This is a top view of the lower box body of the utility model embodiment;

[0037] Figure 8 This is a first structural schematic diagram of the bracket according to an embodiment of the utility model;

[0038] Fig. 9 This is a second structural schematic diagram of the bracket according to an embodiment of the utility model;

[0039] Fig.10 This is a schematic diagram of the structure of the battery box without the bracket installed in the embodiment of the utility model;

[0040] Fig.11 This is a partial schematic diagram of the battery box at the fixed block of the embodiment of the utility model;

[0041] Fig.12 This is a partial schematic diagram of the battery box at the position of the limiting bracket according to the embodiment of the utility model;

[0042] Fig.13 It is a partial schematic diagram of the battery box at the convex rib of the embodiment of the utility model;

[0043] Fig.14 This is a structural schematic diagram of a battery box mounting bracket according to an embodiment of the utility model;

[0044] Fig.15 It is a side view of a battery box according to an embodiment of the utility model;

[0045] Fig.16 for Fig.15 Partial schematic diagram of A in the figure.

[0046] Icons: 010-battery box; 100-upper box; 110-flange surface; 120-first installation port; 130-first groove; 140-second groove; 150-convex rib; installation panel; 201-second installation port; 210-high voltage connector; 220-communication connector; 230-fuse box; 240-fire protection interface; 250-BMU; 260-cover plate; 270-explosion-proof valve; 300-lower box; 310-cooling liquid plate; 311-liquid plate body; 3111-barrier rib; 3112-flow channel cavity; 3113-plug Block; 312-side beam; 3121-hollow cavity; 3122-lifting hole; 3123-slot; 320-first beam; 330-second beam; 340-third beam; 350-fixed bracket; 360-fixed block; 370-limiting piece; 380-liquid cooling interface; 400-limiting bracket; 500-bracket; 510-bracket body; 501-first limiting part; 502-second limiting part; 503-third limiting part; 504-fourth limiting part; 505-first mounting hole; 506-clamping piece; 600-fixed piece. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0050] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0051] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] This embodiment provides an energy storage device, including a battery box 010 and a cabinet, and a bracket 500 is connected to the cabinet.

[0054] In this embodiment, the energy storage device may be an energy storage container, which may carry a plurality of battery boxes 010 and may also be equipped with other additional components to facilitate management or control of the internal environment of the energy storage container.

[0055] In this embodiment, the energy storage device includes a cabinet; the structure of the cabinet can be selected according to the installation location and size of the energy storage device.

[0056] In this embodiment, the energy storage device includes a battery box 010 .

[0057] Please refer to Figure 1 The battery box 010 proposed in this embodiment includes a box body, a bracket 500 and a fixing member 600; the box body is used to set the battery module; the bracket 500 is used to connect with the external structure, and the bracket 500 is provided with a first limiting portion 501 and a second limiting portion 502, the first limiting portion 501 is connected to the bottom of the box body, and the second limiting portion 502 is arranged at the top of the box body, and the first limiting portion 501 and the second limiting portion 502 are used to restrict the tendency of the box body to move upward or downward; the first end of the fixing member 600 is detachably connected to the box body, and the second end is detachably connected to the first limiting portion 501.

[0058] It can be understood that, by providing the bracket 500, the bracket 500 constrains the tendency of the box to move downward through the first limiting portion 501, and also constrains the tendency of the box to move upward through the second limiting portion 502. In other words, the bracket 500 limits the box to restrict the upward or downward movement of the box; by providing the fixing member 600, the fixing member 600 fixes the bracket 500 and the box to prevent the box from moving forward or backward along the bracket 500; the battery box 010 configured in this way has a simple assembly process, and can also safely and effectively fix the battery box 010 in the energy storage device, with adequate safety protection and high safety performance.

[0059] In this embodiment, the battery box 010 includes a box body, and the box body is a split box body, and the box body includes a detachably connected upper box body 100 and a lower box body 300, as well as a mounting panel and a limiting bracket 400.

[0060] Please refer to Figure 2In this embodiment, the battery box 010 includes an upper box body 100. The upper box body 100 is a rectangular box structure with an open end on one side. The upper box body 100 is provided with a receiving cavity connected to the open end, and the receiving cavity is used to receive the battery module; the upper box body 100 is provided with a flange surface 110 along the edge of the open end. Among them, the flange surface 110 should have a certain thickness to ensure the connection rigidity between the upper box body 100 and the lower box body 300; at the same time, the flange surface 110 is drilled with bolt holes and positioning pin holes.

[0061] Optionally, see Figure 2 The side wall of the upper box body 100 is provided with three first installation openings 120 , and the side wall of the upper box body 100 is drilled with positioning pin holes along the first installation openings 120 and is used for assembling the installation panel.

[0062] Optionally, see Figure 2 The top wall of the upper box body 100 is provided with a plurality of first grooves 130 and second grooves 140 arranged at staggered intervals; one end of the first groove 130 is a first opening and the first opening faces the side wall on one side of the box body, and one end of the first groove 130 is a second opening and the second opening faces the side wall on the other side of the box body.

[0063] It can be understood that the main function of the staggered first grooves 130 and the second grooves 140 is to improve the structural rigidity, and at the same time to collect the condensed water generated by the upper battery box 010 and drain the condensed water to the flange surfaces 110 on both sides of the upper box body 100.

[0064] For further information, please refer to Figure 2 and Fig.13 Two convex ribs 150 are arranged at intervals on the flange surfaces 110 on both sides of the upper box body 100, the first end of the convex rib 150 is connected to the flange surface 110, and the second end of the convex rib 150 is connected to the side wall of the upper box body 100. The arrangement interval of the convex rib 150 on the flange surface 110 on one side is at least greater than the maximum interval of the first groove 130; the arrangement interval of the convex rib 150 on the flange surface 110 on the other side is at least greater than the maximum interval of the second groove 140.

[0065] It is understandable that the ribs 150 arranged at intervals are used to block the flow, preventing the condensed water from flowing to the front end on the flange surface 110. The above structure can prevent the condensed water from flowing from the high-voltage connection or the low-voltage communication connection at the front mounting panel, thereby improving safety and reliability.

[0066] It is worth mentioning that the upper box body 100 in this embodiment is a high-frame structure and is made of composite materials, which is helpful to reduce the overall weight and material cost of the battery box 010.

[0067] Please refer to Figure 3 and Fig.15In this embodiment, the box includes an installation panel. The installation panel is provided with a second installation port 201 for installing a high-voltage connector 210, a communication connector 220, a fuse box 230, a fire protection interface 240 and a BMU 250.

[0068] Please refer to Figure 1 and Figure 3 The BMU 250 is installed on the second installation port 201, and a cover plate 260 is installed on the end surface of the BMU 250. At the same time, an explosion-proof valve 270 or a breathable valve is installed on the cover plate 260 for decompression and exhaust when the battery module is thermally runaway.

[0069] Please refer to Figure 4-Figure 7 In this embodiment, the box body includes a lower box body 300; the lower box body 300 includes a cooling liquid plate 310, a first beam 320, a second beam 330, at least one third beam 340 and a fixing bracket 350.

[0070] Please refer to Figure 4 and Figure 5 In this embodiment, the cooling liquid plate 310 includes a liquid plate body 311 and side beams 312 arranged on both sides of the liquid plate body 311. A hollow cavity is arranged in the liquid plate body 311, and plugs 3113 are used to block the two ends of the liquid plate body 311 to form a closed flow channel cavity 3112; a plurality of barrier ribs 3111 are arranged in the cavity, and the plurality of barrier ribs 3111 can be arranged at intervals of equal or unequal distances, and at the same time, the cavity is divided to form a plurality of flow channel cavities 3112 for circulating the cooling liquid.

[0071] It is worth mentioning that the two ends of the plurality of barrier ribs 3111 are milled to form cross-sections of different lengths and shapes. The cooling liquid plate 310 configured in this way can meet the heat dissipation requirements of the battery box 010 and ensure that the battery module operates within an appropriate range.

[0072] For further information, please refer to Figure 5 Side beams 312 are provided on both sides of the cooling liquid plate 310, and two hollow cavities 3121 are provided in the side beams 312 at intervals. The hollow cavities 3121 are arranged along the setting direction of the side beams 312; positioning pin holes are drilled on the side beams 312 to fix with the flange surface 110 of the upper box body 100.

[0073] Please refer to Figure 6 The side of the side beam 312 is provided with a plurality of hoisting holes 3122 arranged at intervals, and the hoisting holes 3122 are connected to the hollow cavity 3121 and are used for transportation and hoisting of the battery box 010.

[0074] Please refer to Figure 6 and Fig.11A fixing block 360 is provided at the first end of the side beam 312, and the fixing block 360 is clamped in the hollow cavity 3121; a threaded hole is provided on the fixing block 360 and is detachably connected to the first end of the fixing member 600.

[0075] Please refer to Figure 6 and Fig.13 A clamping groove 3123 is provided at the second end of the side beam 312, and the clamping groove 3123 is used for clamping and limiting with the fourth limiting portion 504; the shape of the clamping groove 3123 can be an oblique wedge structure.

[0076] It is worth mentioning that please refer to Figure 4 and Figure 5 The cooling liquid plate 310 of this embodiment is formed by welding two profile plates with the same structure at the middle. Of course, in other embodiments, multiple profile plates can also be welded.

[0077] In this embodiment, please refer to Figure 6 and Figure 7 The first crossbeam 320 is disposed at the first end of the cooling liquid plate 310 and connected to the first ends of the side beams 312 on both sides; the second crossbeam 330 is disposed at the second end of the cooling liquid plate 310 and connected to the second ends of the side beams 312 on both sides; the third crossbeam 340 is disposed between the first crossbeam 320 and the second crossbeam 330; the first crossbeam 320, the second crossbeam 330 and the third crossbeam 340 disposed in this way are used to install and fix the battery module. In other embodiments, multiple third crossbeams 340 can also be disposed between the first crossbeam 320 and the second crossbeam 330.

[0078] Positioning pin holes for fixing with the flange surface 110 of the upper box body 100 are drilled on the first crossbeam 320 and the second crossbeam 330 .

[0079] Optionally, limiting members 370 are provided at one end of the first beam 320 and the second beam 330 facing the third beam 340 and at both ends of the third beam 340. The limiting members 370 are provided with limiting grooves and cooperate with other limiting members 370 to limit the battery module.

[0080] Optionally, a plurality of fixing brackets 350 are provided between the first cross beam 320 and the limiting member 370 ; positioning pin holes are drilled on the fixing brackets 350 for connecting and fixing with the mounting panel by bolts.

[0081] Optionally, a hole is opened in the first crossbeam 320 for connection with the liquid cooling interface 380 .

[0082] Please refer to Fig.10 and Fig.12 In this embodiment, the box body also includes a limiting bracket 400.

[0083] Optionally, the limiting bracket 400 has a hollow bracket structure, and the limiting bracket 400 is detachably connected to the flange surface 110 and the lower box body 300 in sequence through a connecting piece; the upper top surface of the limiting bracket 400 is a plane and abuts against the first limiting portion 501. It can be understood that when the battery box 010 is installed, the upper top surface of the limiting bracket 400 and the first limiting portion 501 of the bracket 500 realize vertical limitation of the battery box 010.

[0084] Please refer to Fig.14 In this embodiment, the battery box 010 includes two brackets 500, which are respectively arranged on both sides of the box body and are used to cooperate to restrict the tendency of the box body to move upward or downward and to restrict the tendency of the box body to move forward or backward along the brackets 500.

[0085] In other embodiments, the bracket 500 may also be just a whole, and the first limiting portion 501 is a whole plate that is completely in contact with the bottom of the lower box body 300; the first limiting portion 501 is bent upward to form two oppositely arranged second limiting portions 502, and the second limiting portions 502 limit the connection between the flange surface 110 and the lower box body 300.

[0086] Please refer to Figure 8 and Fig. 9 In this embodiment, the bracket 500 includes a bracket body 510, a first limiting portion 501 and a second limiting portion 502; the first limiting portion 501 is vertically bent along the bottom of the bracket body 510, and the upper top surface of the first limiting portion 501 is in contact with the bottom of the lower box body 300; the second limiting portion 502 is vertically bent along the top of the bracket body 510 and is spaced apart, and the bottom surface of the second limiting portion 502 is in contact with the upper top surface of the limiting bracket 400 or a space is reserved between the bottom surface of the second limiting portion 502 and the upper top surface of the limiting bracket 400.

[0087] Understandably, please refer to Fig.16 The first limiting portion 501 and the second limiting portion 502 of the bracket 500 cooperate to restrict the tendency of the box to move upward or downward. In other words, the first limiting portion 501 and the second limiting portion 502 of the bracket 500 cooperate to limit the box, thereby restricting the box from moving upward or downward.

[0088] Optionally, see Figure 8 The bracket 500 is also provided with a third limiting portion 503. The first limiting portion 501 is vertically bent at one end away from the fixing member 600 to form the third limiting portion 503, which is attached to the side wall of the box and is used to restrict the tendency of the box to move backward.

[0089] Optionally, see Fig. 9The bracket 500 is also provided with a fourth limiting portion 504. The fourth limiting portion 504 is a bracket structure, and the fourth limiting portion 504 is arranged at one end away from the fixing member 600, one end of the fourth limiting portion 504 is connected to the third limiting portion 503, and the other end is connected to the bracket body 510; and the fourth limiting portion 504 is used to be engaged with the card slot 3123 on the lower box body 300.

[0090] Optionally, see Figure 8 and Fig. 9 The bracket body 510 of the bracket 500 is also provided with a first mounting hole 505 and / or a clamping member 506 for connecting with an external structure. The clamping member 506 is an L-shaped bracket.

[0091] Please refer to Figure 8 and Fig. 9 In this embodiment, the battery box 010 includes a fixing member 600. The fixing member 600 is an L-shaped connecting member structure, and the first end of the fixing member 600 is detachably connected to the fixing block 360 of the lower box body 300, and the second end is detachably connected to the first limiting portion 501.

[0092] It can be understood that the fixing member 600 and the third limiting portion 503 and the fourth limiting portion 504 of the bracket 500 limit the tendency of the box to move forward or backward along the bracket 500. In other words, the fixing member 600 and the third limiting portion 503 and the fourth limiting portion 504 of the bracket 500 limit the first end and the second end of the lower box 300, thereby limiting the movement of the box along the bracket 500 toward the first end of the lower box 300 or toward the second end of the lower box 300.

[0093] It is worth mentioning that sealing strips are provided between the upper box body 100 and the lower box body 300 and between the mounting panel and the upper box body 100 in this embodiment, and IP67 sealing performance can be achieved by connecting with fasteners.

[0094] Please refer to Figure 1 , Fig.10 and Fig.14 The working principle of the battery box 010 proposed in this embodiment is:

[0095] The installation panel is fixed from the inside at the first installation opening 120 of the upper box body 100. The flange surface 110 of the upper box body 100 and the side beams 312, the first cross beam 320 and the second cross beam 330 on both sides of the lower box body 300 are connected by bolts, and the limiting bracket 400 is passed through the flange surface 110 and the side beam 312 of the lower box body 300 in sequence by bolts and connected.

[0096] Push the assembled upper box body 100 and lower box body 300 into the bracket 500 along the first limiting portion 501 until the slot 3123 of the lower box body 300 is engaged with the fourth limiting portion 504; then limit the box body to limit the upward or downward movement of the box body; then connect the first end of the fixing member 600 to the threaded hole of the fixing block 360 by bolts, and connect the second end of the fixing member 600 to the first limiting portion 501 by bolts, and then limit the box body to limit the forward or backward movement of the box body along the bracket 500.

[0097] The battery box 010 proposed by the utility model is provided with a bracket 500, and the bracket 500 constrains the tendency of the box body to move downward through the first limiting portion 501, and also constrains the tendency of the box body to move upward through the second limiting portion 502. In other words, the bracket 500 limits the box body to restrict the upward or downward movement of the box body; by providing a fixing member 600, the fixing member 600 fixes the bracket 500 and the box body to prevent the box body from moving forward or backward along the bracket 500; the battery box 010 configured in this way has a simple assembly process, and can also safely and effectively fix the battery box 010 in the energy storage device, with adequate safety protection and high safety performance.

[0098] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery box, characterized in that: include: A box body, wherein the box body is used to set the battery module; A bracket, the bracket is used to connect with the external structure, the bracket is provided with a first limiting portion and a second limiting portion, the first limiting portion is connected to the bottom of the box, the second limiting portion is arranged at the top of the box, the first limiting portion and the second limiting portion are used to restrict the tendency of the box to move upward or downward; A fixing member, wherein a first end of the fixing member is detachably connected to the box body, and a second end of the fixing member is detachably connected to the first limiting portion.

2. The battery box according to claim 1, characterized in that: The bracket is also provided with a third limiting portion, which is arranged at an end away from the fixing member, and the third limiting portion is in contact with the side wall of the box body and is used to restrict the tendency of the box body to move backward.

3. The battery box according to claim 1, characterized in that: The bracket is also provided with a fourth limiting portion, which is arranged at an end away from the fixing member and is used for being engaged with a card slot on the lower box body.

4. The battery box according to claim 1, characterized in that: The bracket is also provided with a first mounting hole and / or a clamping piece for connecting with the external structure.

5. The battery box according to claim 1, characterized in that: The box body comprises an upper box body and a lower box body which are detachably connected, and the flange surface of the upper box body and the lower box body are detachably connected; The first limiting portion is connected to the bottom of the lower box body, the second limiting portion is arranged on the top of the flange surface of the upper box body, and the first end of the fixing member is detachably connected to the lower box body.

6. The battery box according to claim 5, characterized in that: The box body comprises a limit bracket, and the limit bracket is detachably connected to the flange surface and the lower box body in sequence through a connecting piece; The limiting bracket abuts against the first limiting portion.

7. The battery box according to claim 5, characterized in that: The top wall of the upper box body is provided with a plurality of first grooves and second grooves arranged at staggered intervals; One end of the first groove is a first opening and the first opening faces the side wall on one side of the box body, and one end of the first groove is a second opening and the second opening faces the side wall on the other side of the box body.

8. The battery box according to claim 5, characterized in that: The upper box body is provided with at least two convex ribs arranged at intervals, a first end of the convex rib is connected to the flange surface, and a second end of the convex rib is connected to the side wall of the upper box body.

9. The battery box according to claim 5, characterized in that: The box body also includes an installation panel, on which a second installation port for installing a high-voltage connector, a communication connector, a fuse box, a fire protection interface and a BMU is provided; A first mounting opening is provided on the side wall of the upper box body, and the mounting panel is arranged at the first mounting opening and connected to the fixing brackets of the upper box body and the lower box body.

10. The battery box according to claim 5, characterized in that: The lower box body comprises a cooling liquid plate, and a flow channel cavity for circulating cooling liquid is provided in the cooling liquid plate; Side beams are provided on both sides of the cooling liquid plate, a hollow cavity is provided in the side beams, and a hoisting hole communicating with the hollow cavity is provided on the side of the side beams; A fixing block is disposed at the first end of the side beam, the fixing block is clamped in the hollow cavity, and the first end of the fixing member is detachably connected to the fixing block; The second end of the side beam is provided with a clamping groove.

11. The battery box according to claim 10, characterized in that: The lower box body includes a first cross beam, a second cross beam and at least one third cross beam; The first crossbeam is disposed at a first end of the cooling liquid plate, the second crossbeam is disposed at a second end of the cooling liquid plate, and the at least one third crossbeam is disposed between the first crossbeam and the second crossbeam; Limiting members are provided at one end of the first cross beam and the second cross beam facing the at least one third cross beam and at both ends of the at least one third cross beam.

12. The battery box according to claim 11, characterized in that: A plurality of fixing brackets are arranged between the first cross beam and the limiting member.

13. An energy storage device, characterized in that: It comprises the battery box and cabinet according to any one of claims 1 to 12, wherein the bracket is connected to the cabinet.

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