Battery box, battery and electric equipment

Abstract

The utility model discloses a battery box, a battery and electric equipment, the battery box comprises a tray, a first mounting frame and a first cover plate, the tray comprises a bottom plate and a side wall arranged around the bottom plate, and the bottom plate and the side wall are connected to define an accommodating space suitable for accommodating a battery cell; the first mounting frame is arranged on the side wall, the first mounting frame is located on one side of the containing space, and a first opening communicating with the containing space is formed in the first mounting frame; the first cover plate is detachably connected with the first mounting frame, and the first cover plate covers the first opening. According to the battery box, the first mounting frame is arranged on the side wall of the tray, the first opening is formed in the first mounting frame, and the first cover plate is detachably connected with the first mounting frame, so that when a battery cell, a control part and the like in the battery box are damaged, the first cover plate is detached, and the battery cell, the control part and the like in the battery box can be maintained through the first opening; the battery core, the control part and the like are more convenient to maintain, the battery does not need to be integrally replaced, and the battery maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery box, a battery and an electrical device. Background Art

[0002] With the rapid development of new energy vehicles, power batteries, as an important component of new energy vehicles, provide power for vehicles. Power batteries include battery boxes, battery cells and circuit boards. The battery cells and circuit boards are contained in the battery box, and the battery box protects the internal battery cells and circuit boards. When the vehicle is hit, vibrated, or the temperature is too high, the battery cells, circuit boards, etc. will be damaged.

[0003] The existing battery box structure is not convenient for repairing components such as the battery cells and circuit boards in the battery box. Utility Model Content

[0004] The purpose of the present application is to provide a battery box, a battery and an electrical device to solve the problem of inconvenience in repairing components such as battery cells and circuit boards in the battery box.

[0005] To achieve the purpose of this application, this application provides the following technical solutions:

[0006] In a first aspect, the present application provides a battery box, comprising:

[0007] The tray comprises a bottom plate and a side enclosure arranged around the bottom plate, wherein the bottom plate and the side enclosure are connected to form an accommodation space suitable for accommodating the battery cell;

[0008] A first installation frame, arranged on the side enclosure, the first installation frame is located at one side of the accommodation space, and the first installation frame is provided with a first opening communicating with the accommodation space;

[0009] The first cover plate is detachably connected to the first installation frame, and the first cover plate covers the first opening.

[0010] In combination with the first aspect, in a possible implementation, the battery box also includes a fastener, a first mounting hole is provided on a side wall of the first mounting frame away from the accommodating space, a second mounting hole is provided on the first cover plate, and the fastener passes through the second mounting hole and is threadedly engaged with the first mounting hole.

[0011] In combination with the first aspect, in a possible implementation, the battery box further includes a first sealing gasket, which is arranged around the circumference of the first opening, and the first sealing gasket is arranged between the first mounting frame and the first cover plate.

[0012] In combination with the first aspect, in a possible implementation, the side enclosure includes a plurality of support beams, which are connected end to end in sequence and arranged around the base plate, the first mounting frame is connected to one of the support beams, and the first opening extends along the length direction of the support beam connected to the first mounting frame.

[0013] In combination with the first aspect, in a possible implementation, the plurality of support beams include a first support beam, a second support beam, a third support beam and a fourth support beam which are connected end to end in sequence, the first mounting frame is connected to the first support beam, a first rubber path is provided on the first support beam along the length direction of the first support beam and / or on the outer wall of the first mounting frame along the length direction of the first mounting frame, a first rubber layer is provided in the first rubber path, and the first rubber layer is supported between the first mounting frame and the first support beam.

[0014] In combination with the first aspect, in a possible implementation, the battery box also includes a second sealing gasket and a third sealing gasket, the second sealing gasket is supported between the first mounting frame and the second support beam, and the third sealing gasket is supported between the first mounting frame and the fourth support beam.

[0015] In combination with the first aspect, in a possible implementation manner, two second sealing pads are provided between the first installation frame and the second support beam, two third sealing pads are provided between the first installation frame and the fourth support beam, and each of the second sealing pads and each of the third sealing pads extend along a height direction of the first installation frame;

[0016] Potting glue is provided between the two second sealing pads and between the two third sealing pads.

[0017] In combination with the first aspect, in a possible implementation, the battery box also includes a second mounting frame and a second cover plate, the second mounting frame is connected to the third support beam, the second mounting frame is located between the second support beam and the fourth support beam, the second mounting frame is provided with a second opening connected to the accommodating space, the second cover plate is connected to the second mounting frame, and the second cover plate covers the second opening.

[0018] In combination with the first aspect, in a possible implementation, the battery box also includes a box cover, and the box cover is arranged on the first mounting frame, the second support beam, the second mounting frame and the fourth support beam, and the first mounting frame, the second support beam, the second mounting frame and the fourth support beam are all provided with a second rubber path, and a second rubber layer is provided in the second rubber path.

[0019] In a second aspect, the present application provides a battery, comprising a battery cell, a control component and a battery box according to the first aspect, wherein the battery cell and the control component are both accommodated in the battery box, and the control component is arranged on a side of the battery cell close to the first opening.

[0020] In a third aspect, the present application further provides an electrical device, comprising the battery according to the second aspect.

[0021] In the present application, a first mounting frame is provided on the side of the tray, and a first opening is opened on the first mounting frame, so that the first cover plate is detachably connected to the first mounting frame. When the battery cells, control components, etc. in the battery box are damaged, the first cover plate is removed and the battery cells and other components in the battery box can be repaired through the first opening, making the repair of the battery cells, control components, etc. more convenient, without the need to replace the entire battery, thereby reducing the battery repair cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is an exploded view of the structure of a battery according to one embodiment of the present application;

[0024] Figure 2 This is a partial structural exploded view of a battery box according to one embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the structure of a side enclosure according to an embodiment of the present application;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0027] Description of reference numerals:

[0028] 100, battery box; 110, tray; 110a, bottom plate; 110b, side panel; 111, accommodating space; 112, first support beam; 112a, first glue path; 113, second support beam; 114, third support beam; 115, fourth support beam; 115a, second glue path; 120, first mounting frame; 121, first opening; 130, first cover plate; 131, second mounting hole; 140, first sealing gasket; 150, first glue layer; 161, second sealing gasket; 162, third sealing gasket; 163, potting glue; 164, second glue layer; 170, second mounting frame; 180, box cover; 200, battery cell; 300, third glue layer; 400, thermal conductive glue layer. DETAILED DESCRIPTION

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

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0031] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this application includes any and all combinations of one or more of the related listed items.

[0032] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] The present application provides an electric device, which includes a mounting frame and a battery, wherein the battery is mounted on the mounting frame and is used to power the electric device. The electric device includes a mobile phone, a tablet computer, a sweeper, and a vehicle, and the electric device can be powered by a built-in battery so as to work without an external power source. The battery can be a lithium-ion battery, a sodium-ion battery, or a nickel-metal hydride battery.

[0034] The present application embodiment is described by using a battery applied to a vehicle, and is not limited to other embodiments.

[0035] Vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. For pure electric vehicles or hybrid vehicles, the battery is used as the power source of the entire vehicle. The battery is installed on the vehicle frame. As the core component of the vehicle, the safety of the battery is particularly important. The battery includes a battery management system and multiple single cells assembled in series and parallel. The battery management system is responsible for monitoring and managing the battery's charging and discharging process to ensure the safety and stable performance of the battery.

[0036] refer to Figure 1 The present application provides a battery, which includes a battery box 100, a battery cell 200 and a control component. The battery cell 200 and the control component are contained in the battery box 100, and the battery box 100 protects the internal battery cell 200 and the control component. The control component in the battery is one of the important components for realizing intelligent battery management, which can ensure the safe and stable operation of the battery and the equipment; the control component can control the charging and discharging of the battery, avoid damage to the battery due to overcharging or over-discharging, and extend the battery life. The control component of the battery can collect parameters such as voltage, temperature, and current of each single cell in the battery pack, and transmit these data to the vehicle control unit, which plays an important role in the performance and stability of the entire vehicle. When the vehicle is hit, vibrated, or the temperature is too high, the battery cell 200, the control component, etc. will be damaged.

[0037] The existing battery box structure is not convenient for repairing components such as battery cells and control components in the battery box.

[0038] refer to Figure 1 and Figure 2The present application provides a battery box 100, including a tray 110, a first mounting frame 120 and a first cover plate 130. The tray 110 includes a bottom plate 110a and a side wall 110b arranged around the bottom plate 110a. The bottom plate 110a and the side wall 110b are connected to form a receiving space 111. The receiving space 111 is suitable for receiving a battery cell 200. The first mounting frame 120 is arranged on the side wall 110b. The first mounting frame 120 is located at one side of the receiving space 111. The first mounting frame 120 is provided with a first opening 121 communicating with the receiving space 111. The first cover plate 130 is detachably connected to the first mounting frame 120. The first cover plate 130 is covered at the first opening 121. Specifically, the battery cell 200 and the control component are both accommodated in the receiving space 111 of the battery box 100. The control component includes a circuit board, a battery integrated controller (BIC), etc. The control component is arranged on one side of the battery cell 200 close to the first opening 121. In the present application, a first mounting frame 120 is provided on the side wall 110b of the tray 110, and a first opening 121 is opened on the first mounting frame 120, so that the first cover plate 130 is detachably connected to the first mounting frame 120. When the battery cells 200, control components, etc. in the battery box 100 are damaged, the first cover plate 130 is removed, and the battery cells 200, control components, etc. in the battery box 100 can be repaired through the first opening 121, making the repair of the battery cells 200, control components, etc. more convenient, without the need to replace the entire battery, thereby reducing the battery repair cost.

[0039] In the battery box 100 provided in the present application, the battery box 100 further includes a fastener, a first mounting hole is provided on a side wall of the first mounting frame 120 away from the accommodating space 111, a second mounting hole 131 is provided on the first cover plate 130, and the fastener passes through the second mounting hole 131 and is threadedly engaged with the first mounting hole. Specifically, the fastener may be a bolt, a screw, etc., the fastener is passed through the second mounting hole 131 on the first cover plate 130 and is threadedly engaged with the first mounting frame 120, the first cover plate 130 can be disassembled by disassembling the fastener, and after the first cover plate 130 is disassembled, it is accessible through the first opening 121 on the first mounting frame 120 to facilitate the maintenance of the components in the accommodating space 111.

[0040] Optionally, the first cover plate 130 may also be connected to the first installation frame 120 by gluing, which can also achieve a detachable connection between the first cover plate 130 and the first installation frame 120 .

[0041] In the battery box 100 provided in the present application, the battery box 100 further includes a first sealing gasket 140, which is arranged around the circumference of the first opening 121, and is arranged between the first mounting frame 120 and the first cover plate 130. By arranging the first sealing gasket 140 between the first cover plate 130 and the first mounting frame 120, and the first sealing gasket 140 is arranged around the circumference of the first opening 121, the sealing between the first cover plate 130 and the first mounting frame 120 is achieved, and the overall sealing of the battery box 100 is improved. Among them, the first sealing gasket 140 can be made of silicone foam, and the fastener can pass through the first sealing gasket 140 to cooperate with the first mounting frame 120 to improve the stability of the installation of the first sealing gasket 140.

[0042] refer to Figure 2 and Figure 3 The side enclosure 110b includes a plurality of support beams, which are connected end to end in sequence and arranged around the bottom plate 110a. The first mounting frame 120 is connected to one of the support beams. The first opening 121 extends along the length direction of the support beam connected to the first mounting frame 120, which can increase the side opening length of the battery box 100 after removing the first cover plate 130, further facilitating the maintenance of components in the battery box 100.

[0043] In the battery box provided in the present application, multiple support beams include a first support beam 112, a second support beam 113, a third support beam 114 and a fourth support beam 115 which are connected in sequence end to end. The first support beam 112, the second support beam 113, the third support beam 114 and the fourth support beam 115 are located around the accommodating space 111, the first mounting frame 120 is connected to the first support beam 112, and the first opening 121 extends along the length direction of the first support beam 112. In the embodiment of the present application, the first support beam 112 is connected between the second support beam 113 and the fourth support beam 115, the third support beam 114 is connected between the second support beam 113 and the fourth support beam 115, the first support beam 112, the second support beam 113, the third support beam 114 and the fourth support beam 115 are connected to form a closed quadrilateral structure, and the battery cell 200 is accommodated in the accommodating space 111 surrounded by the bottom plate 110a, the first support beam 112, the second support beam 113, the third support beam 114 and the fourth support beam 115.

[0044] refer to Figure 1 and Figure 4, a first glue path 112a is provided on the first support beam 112 along the length direction of the first support beam 112 and / or on the outer wall of the first installation frame 120 along the length direction of the first installation frame 120, a first glue layer 150 is provided in the first glue path 112a, and the first glue layer 150 is held between the first installation frame 120 and the first support beam 112. Specifically, the first glue path 112a is provided on the first support beam 112, or the first glue path 112a is provided on the first installation frame 120, or the first glue path 112a is provided on both the first support beam 112 and the first installation frame 120. By providing the first glue layer 150 in the first glue path 112a, the first glue layer 150 can use structural glue, so that the first installation frame 120 is fixed on the first support beam 112, and the sealing between the first installation frame 120 and the first support beam 112 can be achieved.

[0045] In the battery box 100 provided in the present application, the battery box 100 further includes a second sealing pad 161 and a third sealing pad 162, wherein the second sealing pad 161 is abutted between the first mounting frame 120 and the second support beam 113, and the third sealing pad 162 is abutted between the first mounting frame 120 and the fourth support beam 115. The second sealing pad 161 and the third sealing pad 162 are respectively arranged between the first mounting frame 120 and the second support beam 113 and between the first mounting frame 120 and the fourth support beam 115 to achieve sealing between the first mounting frame 120 and the second support beam 113 and between the first mounting frame 120 and the fourth support beam 115. Both the second sealing pad 161 and the third sealing pad 162 can be made of compressed foam with a thickness of 2 mm to 10 mm. In actual use, the reserved assembly gap between the first installation frame 120 and the second support beam 113 is ≤70% of the thickness of the second sealing gasket 161, and the reserved assembly gap between the first installation frame 120 and the second support beam 113 is ≤70% of the thickness of the third sealing gasket 162, so that the second sealing gasket 161 and the third sealing gasket 162 are in a compressed state after assembly, thereby improving the sealing between the first installation frame 120 and the second support beam 113, and between the first installation frame 120 and the fourth support beam 115.

[0046] Optionally, two second sealing pads 161 are provided between the first installation frame 120 and the second support beam 113, and two third sealing pads 162 are provided between the first installation frame 120 and the fourth support beam 115, and each second sealing pad 161 and each third sealing pad 162 extend along the height direction of the first installation frame 120; and potting glue 163 is provided between the two second sealing pads 161 and between the two third sealing pads 162. The second sealing pad 161 and the third sealing pad 162 enclose a space for accommodating the potting glue 163, which can prevent the potting glue 163 from flowing out; and the second sealing pad 161 and the third sealing pad 162 are both "L"-shaped to prevent the potting glue 163 from flowing out from the two ends and the bottom of the first installation frame 120.

[0047] In the battery box 100 provided in the present application, the battery box 100 further includes a second mounting frame 170 and a second cover plate, the second mounting frame 170 is connected to the third support beam 114, the second mounting frame 170 is located between the second support beam 113 and the fourth support beam 115, the second mounting frame 170 is provided with a second opening communicating with the accommodating space 111, the second cover plate is connected to the second mounting frame 170, and the second cover plate is covered on the second opening. Specifically, the second mounting frame 170 is provided on the third support beam 114 opposite to the first support beam 112, and when the circuit board and the battery integrated controller (BIC) are respectively provided on both sides of the battery cell 200, the first opening 121 and the second opening on both sides of the battery box 100 can facilitate the maintenance of the circuit board and the battery integrated controller (BIC).

[0048] In the battery box 100 provided in the present application, the battery box 100 further includes a box cover 180, which is provided on the first mounting frame 120, the second support beam 113, the second mounting frame 170 and the fourth support beam 115, so that the overall design strength of the battery box 100 is still maintained at a high level, and the first mounting frame 120, the second support beam 113, the second mounting frame 170 and the fourth support beam 115 are all provided with a second glue path 115a, and the second glue path 115a is provided with a second glue layer 164. Specifically, the width range of the first glue path 112a and the second glue path 115a is 3mm to 50mm, and the depth range of the first glue path 112a and the second glue path 115a is 0.3mm to 5mm, so as to improve the sealing between the first mounting frame 120 and the first support beam 112, the tray 110 and the box cover 180, and the first glue path 112a and the second glue path 115a can be provided in plurality, so as to further improve the sealing of the power as a whole. The box cover 180 and the bottom plate 110a are respectively covered on both sides of the tray 110 to close the accommodating space 111. A third adhesive layer 300 is provided between the box cover 180 and the battery cell 200. The third adhesive layer 300 can adopt structural adhesive to improve the reliability of the connection between the box cover 180 and the battery cell 200. A thermal conductive adhesive layer 400 is provided between the battery cell 200 and the bottom plate 110a. While further improving the firmness of the fixation of the battery cell 200, the heat of the battery cell 200 can be transferred to the bottom plate 110a through the thermal conductive silicone, thereby improving the heat dissipation of the battery cell 200.

[0049] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0050] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A battery box, characterized in that: include: The tray comprises a bottom plate and a side enclosure arranged around the bottom plate, wherein the bottom plate and the side enclosure are connected to form an accommodation space suitable for accommodating the battery cell; A first installation frame, arranged on the side wall, wherein the first installation frame is provided with a first opening communicating with the accommodation space; The first cover plate is detachably connected to the first installation frame, and the first cover plate covers the first opening.

2. The battery box according to claim 1, characterized in that: The battery box also includes a fastener, a first mounting hole is provided on a side wall of the first mounting frame away from the accommodating space, a second mounting hole is provided on the first cover plate, and the fastener passes through the second mounting hole and is threadedly engaged with the first mounting hole.

3. The battery box according to claim 1, characterized in that: The battery box further includes a first sealing gasket, which is arranged around the circumference of the first opening and is arranged between the first installation frame and the first cover plate.

4. The battery box according to claim 1, characterized in that: The side enclosure includes a plurality of support beams, which are connected end to end in sequence and arranged around the base plate. The first mounting frame is connected to one of the support beams, and the first opening extends along the length direction of the support beam connected to the first mounting frame.

5. The battery box according to claim 4, characterized in that: The multiple support beams include a first support beam, a second support beam, a third support beam and a fourth support beam which are connected in sequence end to end, the first mounting frame is connected to the first support beam, a first rubber path is provided on the first support beam along the length direction of the first support beam and / or on the outer wall of the first mounting frame along the length direction of the first mounting frame, a first rubber layer is provided in the first rubber path, and the first rubber layer is supported between the first mounting frame and the first support beam.

6. The battery box according to claim 5, characterized in that: The battery box further includes a second sealing gasket and a third sealing gasket, wherein the second sealing gasket is abutted between the first mounting frame and the second support beam, and the third sealing gasket is abutted between the first mounting frame and the fourth support beam.

7. The battery box according to claim 6, characterized in that: Two second sealing pads are provided between the first installation frame and the second support beam, and two third sealing pads are provided between the first installation frame and the fourth support beam, and each of the second sealing pads and each of the third sealing pads extend along the height direction of the first installation frame; Potting glue is provided between the two second sealing pads and between the two third sealing pads.

8. The battery box according to claim 5, characterized in that: The battery box also includes a second mounting frame and a second cover plate, the second mounting frame is connected to the third support beam, the second mounting frame is located between the second support beam and the fourth support beam, the second mounting frame is provided with a second opening connected to the accommodating space, the second cover plate is connected to the second mounting frame, and the second cover plate covers the second opening.

9. The battery box according to claim 8, characterized in that: The battery box also includes a box cover, which is arranged on the first mounting frame, the second support beam, the second mounting frame and the fourth support beam, and the first mounting frame, the second support beam, the second mounting frame and the fourth support beam are all provided with a second glue path, and the second glue path is provided with a second glue layer.

10. A battery, characterized in that: It comprises a battery cell, a control component and a battery box according to any one of claims 1 to 9, wherein the battery cell and the control component are both accommodated in the battery box, and the control component is arranged on a side of the battery cell close to the first opening.

11. An electrical device, characterized in that: Comprising a battery according to claim 10.

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