Battery box body, battery pack and vehicle

Abstract

The utility model relates to a battery box body, a battery pack and a vehicle, and belongs to the technical field of batteries, the battery box body comprises a box body, the wall surface of the box body is provided with an opening used for placing a moisture absorption piece, a ventilation cover, a battery pack, a battery pack, a battery pack, a battery pack, a battery pack, a battery pack, a battery pack, a battery pack and a battery pack, and the ventilation cover is installed in the box body, communicates with the opening and is used for accommodating the moisture absorption piece placed in the box body; the cover plate is installed on the box body and used for opening or closing the opening in the wall face of the box body. When the moisture absorption part needs to be replaced in the battery box body, the moisture absorption part in the ventilation cover can be replaced through the opening without disassembling the ventilation cover for accommodating the moisture absorption part and opening the opening in the box body, and then the moisture absorption part can be replaced by closing the opening through the cover plate, so that the replacement steps of the moisture absorption part are simplified, the ventilation cover does not need to be assembled and disassembled, and the replacement cost is reduced. The ventilation cover is installed in the box body, the size setting is not limited by the opening, the size can be set according to the size of the box body, and more moisture absorption pieces can be contained.

Description

Technical Field

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

[0002] In the battery industry, battery modules are installed in battery boxes. During long-term use, affected by the environment and other unexpected factors, condensation will occur in the battery box, causing short circuits in the battery box, rust in the battery box, etc., affecting the normal use of the battery.

[0003] In the related art, the patent with the authorization announcement number CN218887403U discloses a battery box, which is provided with a mounting through hole on the box body to install a detachable desiccant container, so as to improve the technical problem that the desiccant in the battery box is inconvenient to replace. However, each time the desiccant is replaced, the container must be removed, the container must be opened, the desiccant must be replaced, the container must be closed, and the container must be reset. The replacement steps are cumbersome, and the container must be pulled out each time, which has the disadvantages of being inconvenient to replace and taking a long time.

[0004] Therefore, it is necessary to study and improve the above structure and provide a battery box, a battery pack and a vehicle in order to achieve a more practical purpose. Summary of the invention

[0005] The embodiments of the present application provide a battery box, a battery pack and a vehicle to solve the problem in the related art that when replacing the desiccant, the replacement steps are complicated and the container needs to be pulled out each time, which makes the replacement inconvenient and time-consuming.

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

[0007] The box body has an opening on its wall for placing the moisture absorbent:

[0008] A breathable cover, which is installed in the box body and communicated with the opening, and is used to accommodate the moisture absorbent placed in the box body;

[0009] A cover plate is installed on the box body and is used to open or close the opening on the wall surface of the box body.

[0010] In the first aspect, in some embodiments, the hygroscopic member is a color-changeable hygroscopic agent, and the cover plate is a transparent plate. The transparent plate can cooperate with the opening to form a window for observing the color-changeable hygroscopic agent.

[0011] In the first aspect, in some embodiments, the breathable cover has a flat plate and a side enclosure surrounding the flat plate, and the flat plate and the side enclosure are both provided with evenly distributed breathable holes.

[0012] In the first aspect, in some embodiments, an annular groove is formed on the cover plate, and a sealing ring is embedded in the annular groove for fitting the box body and surrounding the opening.

[0013] In the first aspect, in some embodiments, the box body has a bottom wall and a side wall surrounding the bottom wall, and the air permeable cover is fixedly connected to the side wall and extends along the long side direction of the side wall.

[0014] In the first aspect, in some embodiments, the cover plate is detachably connected to the box body via fasteners, and the cover plate is provided with mounting holes that cooperate with the fasteners.

[0015] In the first aspect, in some embodiments, slide rails are symmetrically mounted on the box body and located on both sides of the opening, and the cover plate extends into the slide rails on both sides and can slide along the slide rails to close or open the opening.

[0016] In the first aspect, in some embodiments, the cover is hinged on the box body and can close or open the opening.

[0017] In a second aspect, an embodiment of the present application provides a battery pack, including:

[0018] A battery cell and a battery case as described in any one of the above items, wherein the battery cell is arranged in the battery case.

[0019] In a third aspect, an embodiment of the present application provides a vehicle, including:

[0020] The battery pack described above.

[0021] The beneficial effects of the technical solution provided by this application include:

[0022] The embodiments of the present application provide a battery case, a battery pack and a vehicle. The case body has an opening on its wall for placing a hygroscopic component: a breathable cover installed in the case body and connected to the opening, for accommodating the hygroscopic component placed in the case body; a cover plate installed on the case body, for opening or closing the opening on the wall of the case body.

[0023] Therefore, when the desiccant component in the battery box of the present application needs to be replaced, there is no need to remove the breathable cover that accommodates the desiccant component. By opening the opening on the box body, the desiccant component in the breathable cover can be replaced through the opening, and then the opening can be closed by the cover plate to complete the replacement of the desiccant component, thereby simplifying the replacement steps of the desiccant component and eliminating the need to install and disassemble the breathable cover. To a certain extent, the convenience and efficiency of replacement are improved, and the breathable cover is installed in the box body, and the size setting is not limited by the opening. The size can be set based on the size of the box body to accommodate more desiccant components. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the structure of the box body of an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the connection between the breathable cover and the box body according to an embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the connection between the cover plate and the box body according to an embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the structure of the breathable cover according to an embodiment of the present application;

[0029] Figure 5 This is a schematic diagram of the structure of the cover plate of an embodiment of the present application;

[0030] Figure 6 This is a schematic structural diagram of a breathable cover according to another embodiment of the present application;

[0031] Figure 7 This is a schematic diagram of the connection between the cover plate and the box body according to another embodiment of the present application;

[0032] Figure 8 This is a schematic diagram of the connection between the cover plate and the box body according to another embodiment of the present application.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Box body; 11. Bottom wall; 12. Side wall; 121. Opening; 2. Breathable cover; 21. Flat plate; 22. Side wall; 23. Breathable hole; 3. Cover plate; 31. Annular groove; 32. Mounting hole; 4. Sealing ring; 5. Slide rail; 6. Hygroscopic component. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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 making creative work are within the scope of protection of this application.

[0036] The embodiments of the present application provide a battery box, a battery pack and a vehicle, which can solve the problems in the related art that when replacing the desiccant, the replacement steps are complicated and the container needs to be pulled out each time, which makes the replacement inconvenient and time-consuming.

[0037] See also Figures 1 to 8 As shown, the first aspect of the embodiment of the present application provides a battery box, including:

[0038] The box body 1 has an opening 121 on its wall for placing the moisture absorbent member 6:

[0039] The breathable cover 2 is installed in the box body 1 and communicates with the opening 121, and is used to accommodate the moisture absorbent 6 placed in the box body 1;

[0040] The cover plate 3 is mounted on the box body 1 and is used to open or close the opening 121 on the wall of the box body 1 .

[0041] The breathable cover 2 of the embodiment of the present application is fixedly installed on the inner wall surface of the box body 1. When the desiccant component 6 needs to be replaced, there is no need to remove the breathable cover 2 accommodating the desiccant component 6. By opening the opening 121 on the box body 1, the desiccant component 6 in the breathable cover 2 can be replaced through the opening 121, and then the opening 121 can be closed by the cover plate 3 to complete the replacement of the desiccant component 6.

[0042] Compared with the technical solutions mentioned in the related art, the present application simplifies the replacement steps of the moisture absorbent component 6, and does not require the installation and disassembly of the breathable cover 2, which improves the convenience and efficiency of replacement to a certain extent. Moreover, the breathable cover 2 is installed in the box body 1, and the size setting is not limited by the opening 121. The size can be set based on the size of the box body to accommodate more moisture absorbent components 6.

[0043] Exemplarily, the breathable cover 2 can be fixedly installed on the inner wall of the box body 1 by means of bayonet, gluing, bolt connection, riveting or welding, so as to cooperate with the inner wall of the box body 1 to form a cavity for accommodating the moisture absorbent member 6. The cover plate 3 can be installed by means of bayonet, bolt connection, hinged connection or sliding connection, all of which can realize opening or closing the opening 121 on the wall of the box body 1.

[0044] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a battery box, the hygroscopic component 6 of the battery box is a color-changing hygroscopic agent, the cover plate 3 is a transparent plate, and the transparent plate can cooperate with the opening 121 to form a window for observing the color-changing hygroscopic agent.

[0045] The hygroscopic member 6 of the embodiment of the present application is a color-changing hygroscopic agent, and the cover plate 3 is a transparent plate. When the cover plate 3 closes the opening 121 on the wall of the box body 1, the hygroscopic member 6 in the breathable cover 2 can be observed through the window formed at the opening 121. Since the hygroscopic member 6 is a color-changing hygroscopic agent, the hygroscopic degree of the hygroscopic member 6 can be judged by the color of the hygroscopic member 6, so as to facilitate relevant personnel to replace the hygroscopic member 6 in time.

[0046] Exemplarily, the moisture absorbing member 6 may be a color-changing silica gel desiccant, and the moisture absorption degree and the relative humidity of the environment may be determined by the color change thereof.

[0047] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a battery box, wherein the air permeable cover 2 of the battery box has a flat plate 21 and a side enclosure 22 surrounding the flat plate 21 , and evenly distributed air holes 23 are provided on the flat plate 21 and the side enclosure 22 .

[0048] The breathable cover 2 of the embodiment of the present application is a flat shell, which is fixed in the box body 1, occupies a small space, and does not affect the installation and arrangement of the battery cells in the box body 1. Specifically, the breathable cover 2 includes a flat plate 21 and a side enclosure 22 integrally formed with the flat plate 21, and one end of the side enclosure 22 away from the flat plate 21 is fixedly connected to the inner wall surface of the box body 1, and the flat plate 21 and the side enclosure 22 are both provided with uniformly distributed strip-shaped breathable holes 23, which can fully ensure the contact area between the moisture absorbent 6 in the breathable cover 2 and the air inside the box body 1, thereby improving the moisture absorption effect.

[0049] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a battery box, and a ring groove 31 is formed on the cover plate 3 of the battery box. A sealing ring 4 is embedded in the ring groove 31 and is used to fit the box body 1 and surround the opening 121.

[0050] An annular groove 31 is provided on the cover plate 3 of the embodiment of the present application, which is used to constrain the installed sealing ring 4. For example, when the cover plate 3 is fixedly connected to the box body 1 by bolts and closes the opening 121, the sealing ring 4 on the cover plate 3 is squeezed on the outer wall surface of the box body 1, and the sealing ring 4 surrounds the circumference of the opening 121, thereby forming an effective sealing structure to prevent water from entering the opening 121 on the box body 1 from the outside.

[0051] In some optional embodiments, see Figure 1 , Figure 3 and Figure 6 As shown, an embodiment of the present application provides a battery box, wherein the box body 1 of the battery box has a bottom wall 11 and a side wall 12 surrounding the bottom wall 11 , and the air permeable cover 2 is fixedly connected to the side wall 12 and extends along the long side direction of the side wall 12 .

[0052] The box body 1 of the embodiment of the present application is rectangular in shape, and the box body 1 has a bottom wall 11 and a side wall 12 surrounding the bottom wall 11. The breathable cover 2 is a long flat shell. The breathable cover 2 is fixedly connected to the side wall 12 and extends along the long side direction of the side wall 12. The breathable cover 2 and the side wall 12 cooperate to form a larger accommodating space for accommodating the moisture absorbent component 6.

[0053] That is, the size of the breathable cover 2 is larger than the size of the opening 121 on the box body 1, and the size of the opening 121 does not need to match the size of the breathable cover 2. The breathable cover 2 can accommodate more moisture-absorbing components 6, which increases the moisture absorption area of ​​the breathable cover 2 and retains the structural strength of the box body 1.

[0054] Exemplarily, the desiccant member 6 can be a long strip of sheet desiccant, and the opening 121 on the box body 1 is opened at the end of the long strip of breathable cover 2, which is convenient for inserting the desiccant member 6 from the side of the opening 121 on the box body 1 into the long strip of breathable cover 2, and also convenient for pulling out the desiccant member 6 from the side of the opening 121 on the box body 1.

[0055] In some optional embodiments, see Figures 1 to 3 As shown, an embodiment of the present application provides a battery box, in which a cover plate 3 of the battery box is detachably connected to a box body 1 via fasteners, and a mounting hole 32 matching the fasteners is provided on the cover plate 3.

[0056] The four corners of the cover plate 3 of the embodiment of the present application are provided with mounting holes 32 for fasteners to be inserted and installed. At the same time, the box body 1 is provided with assembly holes for alignment with the mounting holes 32. For example, the fasteners can be screws, which can directly tighten and fix the cover plate 3 on the box body 1 to effectively close the opening 121 on the box body 1.

[0057] In some optional embodiments, see Figure 7 As shown, an embodiment of the present application provides a battery box, on which a box body 1 is symmetrically provided with slide rails 5 located on both sides of an opening 121 , a cover plate 3 extends into the slide rails 5 on both sides, and can slide along the slide rails 5 to close or open the opening 121 .

[0058] The cover plate 3 of the embodiment of the present application closes or opens the opening 121 on the box body 1 in a sliding manner. For example, the box body 1 is welded with slide rails 5 located on the upper and lower sides of the opening 121, and the upper and lower ends of the cover plate 3 extend into the upper and lower slide rails 5 respectively. By sliding the cover plate 3 along the slide rails 5, the cover plate 3 can cover or move away from the opening 121, thereby closing or opening the opening 121.

[0059] In some optional embodiments, see Figure 8As shown, an embodiment of the present application provides a battery box, in which a cover plate 3 is hingedly mounted on the box body 1 and can close or open an opening 121 .

[0060] The cover plate 3 of the embodiment of the present application adopts a rotating manner to close or open the opening 121 on the box body 1. Exemplarily, the cover plate 3 is connected to the box body 1 through an elastic hinge, and the elastic force of the elastic hinge can keep the cover plate 3 and the box body 1 in a fitted state, so that the cover plate 3 closes the opening 121 on the box body 1 by covering. When the opening 121 on the box body 1 needs to be opened, the cover plate 3 is flipped outward to overcome the elastic force of the elastic hinge to expose the opening 121 on the box body 1.

[0061] A second aspect of an embodiment of the present application provides a battery pack, including:

[0062] A battery cell and a battery box according to any one of the above embodiments, wherein the battery cell is arranged in the battery box.

[0063] The battery pack of the embodiment of the present application uses the battery case of any of the above embodiments to accommodate the battery cells, which can effectively ensure the dryness of the battery cells in the battery case, avoid condensation in the battery case, and ensure the normal use of the battery pack.

[0064] A third aspect of an embodiment of the present application provides a vehicle, including:

[0065] The battery pack of the above embodiment.

[0066] The vehicle of the embodiment of the present application uses the battery pack of the above embodiment, which is less likely to cause battery pack short circuit or rust failure due to condensation, thereby improving the safety of the vehicle.

[0067] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0068] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0069] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A battery box, characterized in that: include: The box body (1) has an opening (121) on its wall surface for placing the moisture absorbent member (6). A breathable cover (2) is installed in the box body (1) and communicated with the opening (121), and is used to accommodate a moisture-absorbing member (6) placed in the box body (1); A cover plate (3) is mounted on the box body (1) and is used to open or close an opening (121) on the wall surface of the box body (1).

2. The battery case according to claim 1, characterized in that: The hygroscopic member (6) is a color-changeable hygroscopic agent, and the cover plate (3) is a transparent plate. The transparent plate can cooperate with the opening (121) to form a viewing window for observing the color-changeable hygroscopic agent.

3. The battery case according to claim 1, characterized in that: The breathable cover (2) comprises a flat plate (21) and a side enclosure (22) surrounding the flat plate (21). The flat plate (21) and the side enclosure (22) are both provided with evenly distributed breathable holes (23).

4. The battery case according to claim 1, characterized in that: The cover plate (3) is provided with an annular groove (31), and a sealing ring (4) is embedded in the annular groove (31) and is used to fit the box body (1) and surround the opening (121).

5. The battery case according to claim 1, characterized in that: The box body (1) comprises a bottom wall (11) and a side wall (12) surrounding the bottom wall (11); the air permeable cover (2) is fixedly connected to the side wall (12) and extends along the long side direction of the side wall (12).

6. The battery case according to claim 1, characterized in that: The cover plate (3) is detachably connected to the box body (1) via a fastener, and a mounting hole (32) matching the fastener is provided on the cover plate (3).

7. The battery case according to claim 1, characterized in that: The box body (1) is symmetrically provided with slide rails (5) located on both sides of the opening (121); the cover plate (3) extends into the slide rails (5) on both sides and can slide along the slide rails (5) to close or open the opening (121).

8. The battery case according to claim 1, characterized in that: The cover plate (3) is hingedly mounted on the box body (1) and can close or open the opening (121).

9. A battery pack, characterized in that: include: A battery cell and a battery case as claimed in any one of claims 1 to 8, wherein the battery cell is arranged in the battery case.

10. A vehicle, characterized in that: include: The battery pack according to claim 9.

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