Battery and battery case

Abstract

The application provides a battery and a battery box, the battery box comprising a bottom plate, a water cooling plate and a plurality of side walls, each side wall having a vertical plate and a support part, the support part being arranged at the bottom of the vertical plate and protruding from the vertical plate, the plurality of side walls being arranged to enclose each other so that the plurality of vertical plates are connected end to end and the plurality of support parts are connected end to end, the edge of the bottom plate being lapped on the plurality of support parts, and the water cooling plate being lapped on the plurality of support parts and above the bottom plate. The battery box of the application can reduce the number of parts, simplify the structure and improve the maintenance efficiency.

Description

Technical Field

[0001] This application relates to a battery technology, and more particularly to a battery and a battery housing. Background Technology

[0002] With the popularization of new energy technologies, new energy operation machinery is receiving increasing attention from manufacturers and the market. Existing technology has developed a type of battery that includes a housing and battery modules housed within it. As the pursuit of higher endurance continues, the number of battery modules is increasing, and the supporting equipment is becoming more complete. This results in more and more components inside the housing, making it heavier and placing higher demands on the housing's load-bearing capacity.

[0003] The existing enclosure technology uses sheet metal parts to form the outer shell, and a metal frame is used to build the main support structure inside the outer shell. The battery module and supporting equipment (such as water cooling plates) are installed on the main support structure. This structure has a separate outer shell and internal support structure, a large number of parts, a complex structure, and low maintenance efficiency, so it is necessary to make improvements. Utility Model Content

[0004] This application provides a battery and a battery housing that can reduce the number of parts, simplify the structure, and improve maintenance efficiency.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] In a first aspect, this application provides a battery enclosure, comprising: a plurality of side panels, each side panel having a vertical plate and a support portion, the support portion being disposed at the bottom of the vertical plate and protruding from the vertical plate, the plurality of side panels being arranged in a surrounding manner so that the plurality of vertical plates are connected end to end and the plurality of support portions are connected end to end; a bottom plate, the edge of the bottom plate overlapping the plurality of support portions; and a water-cooling plate, the water-cooling plate overlapping the plurality of support portions and located above the bottom plate.

[0007] As an optional implementation, the support is provided with a lower overlapping platform and an upper overlapping platform located above the lower overlapping platform; the edge of the base plate overlaps with the lower overlapping platform; the edge of the water-cooled plate overlaps with the upper overlapping platform.

[0008] As an optional implementation, the support includes: a first connecting plate, the first end of which is formed at the lower end of the upright plate and extends horizontally in a direction away from the upright plate; a second connecting plate, the first end of which is formed at the second end of the first connecting plate and extends upward; a third connecting plate, the first end of which is formed at the second end of the second connecting plate and extends horizontally in a direction close to the upright plate; a fourth connecting plate, the first end of which is formed at the second end of the third connecting plate and extends upward; a fifth connecting plate, the first end of which is formed at the second end of the fourth connecting plate and extends horizontally in a direction close to the upright plate, and the second end of the fifth connecting plate abuts against the upright plate; and a flange, the flange being formed at the second end of the fifth connecting plate and extending along the inner surface of the upright plate, and the flange being fixedly connected to the upright plate; wherein the third connecting plate is used to form a lower overlapping platform; and the fifth connecting plate is used to form an upper overlapping platform.

[0009] As an optional implementation, the battery housing further includes: a plurality of first bottom reinforcing beams, which are spaced apart between two opposite side members, and the two ends of the first bottom reinforcing beams are respectively fixedly connected to the support portions of the two side members to support the bottom plate.

[0010] As an optional implementation, the battery housing further includes: a plurality of bottom sealing plates, which are disposed between two adjacent first bottom reinforcing beams to seal the gap between the two adjacent first bottom reinforcing beams.

[0011] As an optional implementation, the battery housing further includes: a plurality of second bottom reinforcing beams, the second bottom reinforcing beams being spaced apart between two opposite side members, and the two ends of the second bottom reinforcing beams being fixedly connected to two support parts respectively to support the bottom plate; and the second bottom reinforcing beams being provided with positioning pins; the bottom plate being provided with a first positioning hole, and the water-cooling plate being provided with a second positioning hole, the positioning pins passing through the first positioning hole and the second positioning hole to position the bottom plate and the water-cooling plate.

[0012] As an optional implementation, the side panel also includes an enclosure portion disposed on the upper part of the upright plate and opposite to the support portion, and multiple enclosure portions are connected end to end, and multiple support portions are also connected end to end.

[0013] As an alternative implementation, the top wall of the enclosure forms a receiving portion for the sealing strip.

[0014] As an optional implementation, the battery box also includes: multiple reinforcing vertical beams, which are spaced apart and positioned between the enclosure and the support. The upper and lower ends of the reinforcing vertical beams are fixedly connected to the enclosure and the support, respectively, and sections of the reinforcing vertical beams are fixedly connected to the uprights.

[0015] As an optional implementation, the battery housing also includes: a plurality of side sealing portions, which are disposed between two adjacent reinforcing vertical beams to seal the gap between the two adjacent reinforcing vertical beams.

[0016] As an optional implementation, a first through hole is formed at the connection between two adjacent support parts; a second through hole is formed at the connection between two adjacent enclosure parts; the battery box further includes: a plurality of guide posts for guide rods to pass through to connect multiple battery boxes in series, the two ends of the guide posts being respectively engaged with the first through hole and the second through hole; a plurality of first reinforcing members, each having a third through hole, the first reinforcing member connecting two adjacent support parts and aligning the third through hole with the first through hole; and a plurality of second reinforcing members, each having a fourth through hole, the second reinforcing member connecting two adjacent enclosure parts and aligning the fourth through hole with the second through hole.

[0017] Secondly, this application provides a battery including a battery housing according to any one of the above claims.

[0018] This application provides a battery box. Since the side panel has a vertical plate and a support part, and after being enclosed, the vertical plate can be used to directly form a side wall structure that is connected end to end, and the support part can be used to form an overlapping structure that is connected end to end, the battery box of this embodiment can integrate the sheet metal shell and the internal support structure of the sheet metal shell in the prior art. This can reduce the number of parts, simplify the structure, and improve maintenance efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the battery housing provided in an embodiment of this application;

[0022] Figure 2 This is an exploded view of the battery housing provided in an embodiment of this application;

[0023] Figure 3A cross-section of the battery housing provided in an embodiment of this application. Figure 1 ;

[0024] Figure 4 for Figure 3 Enlarged view of part A;

[0025] Figure 5 A cross-section of the battery housing provided in an embodiment of this application. Figure 2 ;

[0026] Figure 6 for Figure 5 Enlarged view of part B;

[0027] Figure 7 A cross-sectional view of the side panel of the battery box provided in an embodiment of this application;

[0028] Figure 8 This is an exploded view of the bottom structure of the battery housing provided in an embodiment of this application;

[0029] Figure 9 A schematic diagram of the installation structure of the side panel of the battery box provided in the embodiments of this application;

[0030] Figure 10 This is a schematic diagram of a battery provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Battery housing; 100. Side panel; 110. Vertical plate; 120. Supporting part; 121. Lower overlapping platform; 122. Upper overlapping platform; 123. First connecting plate; 124. Second connecting plate; 125. Third connecting plate; 126. Fourth connecting plate; 127. Fifth connecting plate; 128. Flanged edge; 129. First through hole; 130. Enclosing part; 131. Sixth connecting plate; 132. Seventh connecting plate; 133. Eighth connecting plate; 134. Ninth connecting plate; 135. Receiving part; 136. Second Through hole; 200, base plate; 210, first positioning hole; 300, water-cooled plate; 310, main body; 320, connecting lug; 312, second positioning hole; 400, first bottom reinforcing beam; 410, second bottom reinforcing beam; 412, positioning pin; 414, through hole; 510, bottom sealing plate; 520, side sealing part; 600, reinforcing vertical beam; 700, guide column; 810, first reinforcing member; 812, third through hole; 820, second reinforcing member; 822, fourth through hole; 20, guide rod. Detailed Implementation

[0033] Current battery enclosures utilize sheet metal to form the outer shell, within which a metal frame is used to construct the main support structure. Battery modules and associated equipment (such as water-cooling plates) are then mounted on this main support structure. This structure results in a separate outer shell and internal support structure, a large number of parts, complex structure, and low maintenance efficiency, thus necessitating improvement.

[0034] To overcome the deficiencies in the prior art, this application provides a battery box. Since the side panel has a vertical plate and a support part, and after being enclosed, the vertical plate can be used to directly form a side wall structure that connects end to end, and the support part can be used to form an overlapping structure that connects end to end, the battery box of this embodiment can integrate the sheet metal shell and the internal support structure of the sheet metal shell in the prior art. This can reduce the number of parts, simplify the structure, and improve maintenance efficiency.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] See Figure 1 and Figure 2 This application provides a battery housing 10, which may include a base plate 200, a water-cooling plate 300, and a plurality of side members 100. Each side member 100 has a vertical plate 110 and a support portion 120. The support portion 120 is disposed at the bottom of the vertical plate 110 and protrudes from the vertical plate 110. The plurality of side members 100 are arranged in a surrounding manner so that the plurality of vertical plates 110 and the plurality of support portions 120 are connected end to end. The edge of the base plate 200 overlaps the plurality of support portions 120. The water-cooling plate 300 overlaps the plurality of support portions 120 and is located above the base plate 200.

[0037] The battery housing 10 has a storage space that can be used to house the battery module and components such as the cooling module, display module, and detection module that are compatible with the battery module.

[0038] In this embodiment, the side panel 100 has a vertical plate 110, which is thin plate-shaped. Multiple side panels 100 are arranged in a surrounding manner, so that the vertical plates 110 of multiple side panels 100 can be connected end to end to form the side wall structure of the battery box 10, which serves as the outermost protective shell.

[0039] In some exemplary embodiments, the battery box 10 is generally square and has four side panels 100. The upright plates 110 of the four side panels 100 are connected end to end and fixedly connected by welding to form a stable side wall of the battery box 10.

[0040] In this embodiment, the side panel 100 also has a support portion 120, which protrudes from the bottom of the upright plate 110. When multiple side panels 100 are arranged together, multiple support portions 120 can form a ring of overlapping structure on the inner bottom of the upright plate 110. The overlapping structure can be used to overlap the bottom plate 200 of the battery box 10, the water cooling plate 300 and other equipment.

[0041] See Figure 3 , Figure 4 , Figure 5 and Figure 6 Specifically, the base plate 200 is plate-shaped and provides protection for the bottom of the battery box 10. Since the overlapping structure formed by the multiple support parts 120 is located on the inner bottom of the upright plate 110, the base plate 200 can overlap the overlapping structure to form a stable support.

[0042] See Figure 3 , Figure 4 , Figure 5 and Figure 6 The water-cooled plate 300 can be used to cool the battery module within the housing space. The water-cooled plate 300 is plate-shaped and can also be overlapped with an overlapping structure formed by multiple support parts 120, so that it can be supported at the bottom of the battery box 10. In this way, when the battery module is placed on the water-cooled plate 300, the water-cooled plate 300 can cool the battery module.

[0043] In some exemplary embodiments, the battery box 10 is generally square and has four side members 100. The support portions 120 of the four side members 100 are connected end to end and fixedly connected by welding to form a stable overlapping structure.

[0044] In addition, since the support part 120 needs to support components such as the base plate 200 and the water-cooled plate 300, it needs to be wider. When two adjacent support parts 120 are connected, the connection point can be cut to avoid mutual interference.

[0045] In this embodiment, since the side panel 100 of the battery box 10 has a vertical plate 110 and a support portion 120, and after enclosure, the vertical plate 110 can be used to directly form a side wall structure that connects end to end, and the support portion 120 can be used to form an overlapping structure that connects end to end, the battery box 10 of this embodiment can integrate the sheet metal shell and the internal support structure of the sheet metal shell in the prior art, which can reduce the number of parts, simplify the structure, and improve maintenance efficiency.

[0046] In some embodiments, the upright plate 110 and the support portion 120 can be manufactured in one piece to improve the mechanical strength of the battery housing 10.

[0047] Furthermore, since the battery box 10 is formed by multiple side panels 100 enclosing a side wall structure, and when enclosing, multiple upright plates 110 are connected end to end with multiple support parts 120, that is, the side panels 100 have the same structure, and battery boxes 10 of different shapes can be enclosed by side panels 100 of different sizes. Therefore, multiple side panels 100 can be obtained by first uniformly manufacturing the base material of the side panels 100 and then cutting the base material.

[0048] In some exemplary manufacturing methods, a long section of substrate can first be processed using a roll forming process to form a vertical plate 110 and a support portion 120 on this steel substrate. Roll forming is a technique that continuously bends and shapes metal strips using multiple rollers. Roll forming is a cold bending forming process that gradually bends metal strips (such as steel plates or aluminum plates) through multiple sets of forming rollers to ultimately form complex-shaped parts with constant or variable cross-sections.

[0049] Then, according to the shape of the battery box 10, multiple side panels 100 are cut to obtain them. For example, when the battery box 10 is a cuboid, two long and two short side panels 100 are cut out.

[0050] Finally, the cut-off side panels 100 are enclosed and fixed to form the side wall structure of the battery box 10.

[0051] See Figure 7 In some embodiments, the support portion 120 is provided with a lower overlapping platform 121 and an upper overlapping platform 122 located above the lower overlapping platform 121. The edge of the base plate 200 overlaps with the lower overlapping platform 121. The edge of the water-cooled plate 300 overlaps with the upper overlapping platform 122.

[0052] In this embodiment, the support portion 120 forms an upper overlapping platform 122 and a lower overlapping platform 121, which provide support platforms for the water-cooled plate 300 and the base plate 200, respectively, thus forming a stable connection structure between the water-cooled plate 300, the base plate 200, and the side panel 100. This design can disperse external forces on the battery box 10, such as vibrations and impacts during vehicle operation, reduce the actual force borne by the welds, reduce the risk of weld cracking, and thereby improve the compressive strength and overall structural stability of the box.

[0053] Furthermore, the upper overlapping platform 122 and the lower overlapping platform 121 provide clear positioning references for the assembly of the base plate 200 and the water-cooled plate 300. During assembly, simply placing the edge of the base plate 200 on the lower overlapping platform 121 and the edge of the water-cooled plate 300 on the upper overlapping platform 122 achieves rapid positioning, reducing adjustment time during assembly and improving assembly efficiency. At the same time, this overlapping method also facilitates worker operation and reduces assembly difficulty.

[0054] In addition, by using the upper overlapping platform 122 and the lower overlapping platform 121 to overlap the water-cooled plate 300 and the bottom plate 200 respectively, the water-cooled plate 300 and the bottom plate 200 can form a layered structure, thereby avoiding interference and compression between the water-cooled plate 300 and the bottom plate 200.

[0055] See Figure 4 , Figure 6 and Figure 7 In some embodiments, the support portion 120 may include a first connecting plate 123, a second connecting plate 124, a third connecting plate 125, a fourth connecting plate 126, a fifth connecting plate 127, and a flange 128.

[0056] The first end of the first connecting plate 123 is formed at the lower end of the upright plate 110 and extends horizontally in a direction away from the upright plate 110. The first end of the second connecting plate 124 is formed at the second end of the first connecting plate 123 and extends upward. The first end of the third connecting plate 125 is formed at the second end of the second connecting plate 124 and extends horizontally in a direction close to the upright plate 110. The first end of the fourth connecting plate 126 is formed at the second end of the third connecting plate 125 and extends upward. The first end of the fourth connecting plate 126 is formed at the second end of the fourth connecting plate 126 and extends horizontally in a direction close to the upright plate 110, and the second end of the fifth connecting plate 127 abuts against the upright plate 110. A flange 128 is formed at the second end of the fifth connecting plate 127 and extends along the inner surface of the upright plate 110, and the flange 128 is fixedly connected to the upright plate 110; wherein, the third connecting plate 125 is used to form the lower overlapping platform 121, and the fifth connecting plate 127 is used to form the upper overlapping platform 122.

[0057] The support part 120 can be formed by rolling steel substrate into a stepped cross section by bending steel plate in five segments.

[0058] The first connecting plate 123 extends horizontally, and the second connecting plate 124 is connected to the first connecting plate 123 and extends upward, so that the first connecting plate 123 provides a width extension space for the third connecting plate 125 connected to the second connecting plate 124.

[0059] The second connecting plate 124 extends vertically, thus providing vertical support for the third connecting plate 125 and directly bearing the vertical load transmitted by the third connecting plate 125, preventing the third connecting plate 125 from bending and deforming due to pressure.

[0060] Similarly, the third connecting plate 125 extends horizontally, and the fourth connecting plate 126 is connected to the first connecting plate 123 and extends upward, so that the third connecting plate 125 provides a width extension space for the fifth connecting plate 127 connected to the fourth connecting plate 126.

[0061] The fourth connecting plate 126 extends vertically and provides vertical support for the fifth connecting plate 127, directly bearing the vertical load transmitted by the fifth connecting plate 127 and preventing the fifth connecting plate 127 from bending and deforming due to pressure.

[0062] Furthermore, in this embodiment, since the fourth connecting plate 126 is located at the rear end of the third connecting plate 125, the fourth connecting plate 126 can limit the displacement of the base plate 200 so as to install and position the base plate 200.

[0063] See Figure 4 Furthermore, since the fourth connecting plate 126 extends vertically upward, and the third connecting plate 125 and the fifth connecting plate 127 at both ends of the fourth connecting plate 126 serve as the lower overlapping platform 121 and the upper overlapping platform 122 respectively, to support the base plate 200 and the water-cooled plate 300 respectively, and the water-cooled plate 300 has a certain thickness, and when the edge of the water-cooled plate 300 is fixed on the fifth connecting plate 127, part of its structure in the thickness direction may occupy a certain space downward. Therefore, the fourth connecting plate 126 can also support a vertical space between the lower overlapping platform 121 and the upper overlapping platform 122, which facilitates the accommodation of the structure of the water-cooled plate 300 under the fifth connecting plate 127, and prevents the water-cooled plate 300 from interfering with and being squeezed by the base plate 200 overlapping on the third connecting plate 125.

[0064] Specifically, the height of the fourth connecting plate 126 can be determined based on the distance between the bottom of the water-cooled plate 300 and the third connecting plate 125 after the water-cooled plate 300 is installed.

[0065] In some exemplary embodiments, the distance between the lowermost end of the water-cooled plate 300 and the third connecting plate 125 can be set within the range of 1mm to 2mm (e.g., 1mm, 1.5mm, 2mm, etc.), which helps to ensure a safe distance between the water-cooled plate 300 and the base plate 200 while also making the vertical structure compact. The height of the fourth connecting plate 126 is set according to the above-mentioned set distance.

[0066] Furthermore, during manufacturing, the base plate 200 and the water-cooled plate 300 are respectively overlapped and fixed to the third connecting plate 125 and the fifth connecting plate 127, and the gap within the aforementioned range is formed by the fourth connecting plate 126. Then, the gap between the two can be filled with fillers such as expanding foam and sealant, so that the two can form a whole through the filler, thereby improving the mechanical strength and the supporting effect of the water-cooled plate 300.

[0067] In addition, a flange 128 is provided on the support part 120. The flange 128 is provided at the second end of the fifth connecting plate 127 and extends along the vertical plate 110. In this way, the flange 128 can fit against the inner surface of the vertical plate 110, increasing the contact area between it and the vertical plate 110. When the flange 128 is fixed to the inner surface of the vertical plate 110, the fixing structure between the vertical plate 110 and the support part 120 is more stable.

[0068] In some specific embodiments, the end of the flange 128 can be connected to the inner surface of the upright plate 110 by welding.

[0069] In some embodiments, since the third connecting plate 125 and the fourth connecting plate 126 form a structure similar to a mounting groove, the base plate 200 mounted on the third connecting plate 125 can be limited. Therefore, when installing the third connecting plate 125, the base plate 200 can be directly placed into the mounting groove structure, which is simple to operate.

[0070] Furthermore, when installing the third connecting plate 125, fasteners can be used to secure the third connecting plate 125 to the base plate 200, so that the base plate 200 is stably fixed on the third connecting plate 125.

[0071] See Figure 4 and Figure 8 In some embodiments, the water-cooled plate 300 has a main body 310 and a plurality of connecting ears 320 disposed on the edge of the main body 310. The water-cooled plate 300 and the fifth connecting plate 127 can be fixed by overlapping the connecting ears 320 onto the fifth connecting plate 127. Furthermore, the connecting ears 320 can be fixed to the fifth connecting plate 127 by fasteners.

[0072] See Figure 6 and Figure 8 In some embodiments, the battery box 10 may further include a plurality of first bottom reinforcing beams 400, which are spaced apart between two opposite side members 100, and the two ends of the first bottom reinforcing beams 400 are respectively fixedly connected to the support portions 120 of the two side members 100 to support the bottom plate 200.

[0073] In some exemplary embodiments, the battery box 10 is generally rectangular, and a plurality of first bottom reinforcing beams 400 can be arranged at intervals along the length of the battery box 10. Each first bottom reinforcing beam 400 can be fixedly connected at both ends to two side members 100 arranged at intervals along the width direction. In this way, the plurality of first bottom reinforcing beams can provide strong support for the bottom plate 200 and the water-cooling plate 300, making the bottom structure of the overall battery box 10 more stable and stronger in load-bearing capacity.

[0074] Furthermore, based on the support portion 120 composed of the first connecting plate 123, the second connecting plate 124, the third connecting plate 125, the fourth connecting plate 126, the fifth connecting plate 127, and the flange 128, since the bottom plate 200 overlaps the third connecting plate 125, the height of the first bottom reinforcing beam 400 can be set to be consistent with the height of the second connecting plate 124, and the end of the first bottom reinforcing beam 400 is fixedly connected to the second connecting plate 124. This allows the upper and lower ends of the first bottom reinforcing beam 400 to be flush with the first connecting plate 123 and the third connecting plate 125 respectively, forming a regular structure and ensuring the support effect for the bottom plate 200 overlapping the third connecting plate 125.

[0075] Furthermore, the end of the first bottom reinforcing beam 400 and the second connecting plate 124 can be fixedly connected by welding. In some specific embodiments, the end of the first bottom reinforcing beam 400 and the second connecting plate 124 can be fixedly connected by arc welding.

[0076] See Figure 6 and Figure 8 Furthermore, the battery housing 10 may also include a plurality of bottom sealing plates 510, which are disposed between two adjacent first bottom reinforcing beams 400 to seal the gap between the two adjacent first bottom reinforcing beams 400.

[0077] Because the two adjacent first bottom reinforcing beams 400 are spaced apart, the bottom plate 200 is directly exposed to the outside when viewed from the bottom, which is not conducive to the protection of the bottom plate 200. In this embodiment, multiple bottom sealing plates 510 are arranged between the two adjacent first bottom reinforcing beams 400 to fill the gap between them, effectively protect the bottom plate 200, prevent sharp objects from piercing the bottom plate 200 and the water-cooling plate 300, and improve the airtightness of the battery box 10.

[0078] In some specific embodiments, the bottom sealing plate 510 can be made of lightweight materials such as plastic, foam, or rubber, which can provide some protection while reducing the weight of the battery box 10. Of course, the bottom sealing plate 510 can also be made of metal, which can provide more comprehensive protection for the floor and water-cooling plate 300. This can be flexibly selected according to the actual situation, and this application does not make any special limitation.

[0079] See Figure 6 and Figure 8 In some embodiments, the battery housing 10 may further include a plurality of second bottom reinforcing beams 410, which are spaced apart between two opposite side members 100, and both ends of the second bottom reinforcing beams 410 are fixedly connected to two support portions 120 to support the base plate 200. The second bottom reinforcing beams 410 are provided with positioning pins 412. The base plate 200 is provided with a first positioning hole 210, and the water-cooled plate 300 is provided with a second positioning hole 312. The positioning pins 412 pass through the first positioning hole 210 and the second positioning hole 312 to position the base plate 200 and the water-cooled plate 300.

[0080] In this embodiment, the second bottom reinforcing beam 410 has a similar structure and installation position to the first bottom reinforcing beam 400. Its two ends can be connected to the mounting parts that are arranged opposite to each other, and it is located at the bottom of the base plate 200 to support the base plate 200.

[0081] The second bottom reinforcing beam 410 is provided with a positioning pin 412, which extends upward. The base plate 200 is provided with a first positioning hole 210, and the water-cooled plate 300 is provided with a second positioning hole 312. The positioning pin 412 cooperates with the first positioning hole 210 and the second positioning hole 312 to position the base plate 200 and the water-cooled plate 300. That is to say, the second bottom reinforcing beam 410 in this embodiment can not only support the base plate 200, but also position the base plate 200 and the water-cooled plate 300, thereby improving the installation effect.

[0082] In some exemplary embodiments, since a water channel is provided inside the center of the main body 310 of the water-cooled plate 300, it is inconvenient to open a second positioning hole 312 in the center of the main body 310. If a second positioning hole 312 is opened at the edge of the main body 310 of the water-cooled plate 300, then correspondingly, the second bottom reinforcing beam 410 can be set at the bottom edge.

[0083] See Figure 6 and Figure 8 Furthermore, the interior of the second bottom reinforcing beam 410 is designed as a hollow structure, and its upper wall can be provided with a through hole 414. The positioning pin 412 is at least partially provided in the hollow structure of the second bottom reinforcing beam 410, and its upper end protrudes through the through hole 414. A first positioning hole 210 is provided on the edge of the base plate 200, and a second positioning hole 312 is provided on the edge of the main body 310 of the water-cooled plate 300. When the base plate 200 and the water-cooled plate 300 are respectively installed on the lower overlapping platform 121 and the upper overlapping platform 122, the first positioning hole 210 and the second positioning hole 312 are arranged opposite to each other, and the positioning pin 412 passes through the first positioning hole 210 and the second positioning hole 312 to position the base plate 200 and the water-cooled plate 300, thereby improving the installation effect.

[0084] See Figure 1 , Figure 2 , Figure 7 and Figure 9 In some embodiments, the side panel 100 may further include an enclosure portion 130, which is disposed on the upper part of the upright plate 110 and is disposed opposite to the support portion 120, and multiple enclosure portions 130 are connected end to end.

[0085] Since the enclosure 130 is located on the upper part of the upright plate 110, the enclosure 130 can increase the bending strength of the top of the upright plate 110, thereby enhancing the bending strength of the entire box.

[0086] When the side panels 100 are closed, the multiple enclosure portions 130 are connected end to end, thus forming a ring of support platform to support the equipment above the battery housing 10. For example, when multiple batteries are being assembled, the battery housing 10 is stacked vertically, and the ring of enclosure portions 130 can be used to support the upper battery housing 10.

[0087] See Figure 7 In some exemplary embodiments, the enclosure portion 130 may include a sixth connecting plate 131, a seventh connecting plate 132, an eighth connecting plate 133, and a ninth connecting plate 134.

[0088] The first end of the sixth connecting plate 131 is formed at the upper end of the upright plate 110 and extends horizontally in a direction away from the upright plate 110. The first end of the seventh connecting plate 132 is formed at the second end of the sixth connecting plate 131 and extends downward. The first end of the eighth connecting plate 133 is formed at the second end of the seventh connecting plate 132 and extends horizontally in a direction close to the upright plate 110. The ninth connecting plate 134 is formed at the second end of the eighth connecting plate 133 and extends against the inner surface of the upright plate 110, and the ninth connecting plate 134 is fixedly connected to the upright plate 110; wherein, the sixth connecting plate 131 is used for equipment above the battery box 10.

[0089] See Figure 7 The top wall of the enclosure 130 forms a receiving portion 135 for the sealing strip.

[0090] Specifically, since the first end of the sixth connecting plate 131 is formed at the upper end of the vertical plate 110 and extends horizontally in a direction away from the vertical plate 110, the sixth connecting plate 131 can serve as the top wall of the enclosure portion 130. The sixth connecting plate 131 is recessed downward to form the receiving portion 135.

[0091] A sealing strip can be provided inside the receiving part 135. When the enclosure part 130 supports the equipment above the battery box 10, the sealing strip provided inside the receiving part 135 can be used to make a tight fit with the equipment above, filling the gap between the two, thereby improving the support stability of the enclosure part 130.

[0092] See Figure 2 In some embodiments, the battery box 10 may further include a plurality of reinforcing vertical beams 600, which are spaced apart and disposed between the enclosure portion 130 and the support portion 120. The upper and lower ends of the reinforcing vertical beams 600 are fixedly connected to the enclosure portion 130 and the support portion 120, respectively, and sections of the reinforcing vertical beams 600 are fixedly connected to the upright plate 110.

[0093] Multiple reinforcing vertical beams 600 can be arranged at intervals along the circumference of the battery box 10, and the two ends of each reinforcing vertical beam 600 are fixedly connected to the enclosure portion 130 and the support portion 120 respectively. In this way, the reinforcing vertical beams 600 can be supported between the enclosure portion 130 and the support portion 120, further improving the vertical strength of the battery box 10.

[0094] Furthermore, the two ends of the reinforcing vertical beam 600 can be fixedly connected to the enclosure portion 130 and the support portion 120 by welding. In some specific embodiments, the two ends of the reinforcing vertical beam 600 can be fixedly connected to the enclosure portion 130 and the support portion 120 by laser welding.

[0095] See Figure 2 and Figure 3 In some embodiments, the battery housing 10 may also include a plurality of side sealing portions 520, which are disposed between two adjacent reinforcing vertical beams 600 to seal the gap between the two adjacent reinforcing vertical beams 600.

[0096] In this embodiment, the side sealing part 520 can be made of lightweight materials such as plastic, foam, and rubber, which can provide a certain degree of protection and reduce the weight of the battery box 10.

[0097] Of course, the side sealing part 520 can also be made of metal, which can provide more comprehensive protection for the floor and water-cooled plate 300. This can be flexibly selected according to the actual situation, and this application does not impose any special restrictions on it.

[0098] See Figure 1 , Figure 2 and Figure 9In some embodiments, a first through hole 129 is formed at the connection between two adjacent support portions 120. A second through hole 132 is formed at the connection between two adjacent enclosure portions 130. The battery box 10 may also include a plurality of guide posts 700, a plurality of first reinforcing members 810, and a plurality of second reinforcing members 820. The plurality of guide posts 700 are used for guide rods 20 to pass through to connect a plurality of battery boxes 10 in series. The two ends of the guide posts 700 are respectively engaged with the first through hole 129 and the second through hole 132. The first reinforcing member 810 has a third through hole 812. The first reinforcing member 810 connects two adjacent support portions 120, and the third through hole 812 is directly opposite to the first through hole 129. The second reinforcing member 820 has a fourth through hole 822. The second reinforcing member 820 connects two adjacent enclosure portions 130, and the fourth through hole 822 is directly opposite to the second through hole 132.

[0099] See Figure 10 In some specific application scenarios, multiple guide posts 700 are provided at the corners of the battery box 10, and guide holes are provided inside the guide posts 700. During assembly, multiple external guide rods 20 are used to pass through the guide holes of the guide posts 700 to stack multiple battery boxes 10 to form a battery pack.

[0100] See Figure 1 , Figure 2 and Figure 9 In this embodiment, since the side panel 100 has a lower support portion 120 and an upper enclosure portion 130, when the side panel 100 is configured to enclose, adjacent support portions 120 are spliced ​​together, and adjacent enclosure portions 130 are spliced ​​together. During splicing, adjacent support portions 120 can form a first through hole 129 at their connection point, and adjacent enclosure portions 130 can form a second through hole 132 at their connection point. In this way, the guide post 700 is inserted through the first through hole 129 and the second through hole 132, and its upper and lower ends are respectively engaged with the first through hole 129 and the second through hole 132, thus fixing the guide post 700 to the side panel 100. This installation method is simple and convenient.

[0101] See Figure 1 , Figure 2 and Figure 9 Furthermore, the first reinforcing member 810 has a third through hole 812. The first reinforcing member 810 connects two adjacent support portions 120, and the third through hole 812 is aligned with the first through hole 129. The first reinforcing member 810 can fix the two adjacent support portions 120, and while reinforcing, it ensures that the third through hole 812 is aligned with the first through hole 129, and ensures that the upper end of the guide hole is exposed in the third through hole 812 so that the guide rod 20 can pass through.

[0102] Similarly, the second reinforcing member 820 has a fourth through hole 822. The second reinforcing member 820 connects two adjacent enclosure portions 130, and the fourth through hole 822 is aligned with the second through hole 132. The second reinforcing member 820 can fix the connection between the two adjacent enclosure portions 130, and at the same time, ensure that the fourth through hole 822 is aligned with the second through hole 132, and ensure that the lower end of the guide hole is exposed in the fourth through hole 822 so that the guide rod 20 can pass through.

[0103] This application also provides a battery that may include a battery housing 10 in any of the above embodiments, wherein a receiving space may be formed within the battery housing 10, and a battery module may be disposed in the receiving space.

[0104] See Figure 10 In some specific embodiments, multiple batteries can also be combined to form a battery module. Multiple guide posts 700 are provided at the corners of the battery housing 10, and guide holes are provided within the guide posts 700. Multiple guide rods 20 are passed through the guide holes of the guide posts 700 to stack multiple battery housings 10 together to form a battery module.

[0105] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0106] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0107] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0108] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery housing, characterized in that, include: Multiple side panels, each side panel having a vertical plate and a support portion, the support portion being disposed at the bottom of the vertical plate and protruding from the vertical plate, the multiple side panels being arranged in an enclosing manner so that the multiple vertical plates are connected end to end and the multiple support portions are connected end to end; A base plate, the edges of which overlap the plurality of support portions; A water-cooled plate, which overlaps the plurality of the supporting parts and is located above the base plate.

2. The battery housing according to claim 1, characterized in that, The support portion is provided with a lower overlapping platform and an upper overlapping platform located above the lower overlapping platform; The edge of the base plate overlaps the lower overlapping platform; The edge of the water-cooled plate overlaps the upper overlapping platform.

3. The battery housing according to claim 2, characterized in that, The support portion includes: A first connecting plate, the first end of which is formed at the lower end of the upright plate and extends horizontally in a direction away from the upright plate; The second connecting plate has a first end formed at the second end of the first connecting plate and extends upward; A third connecting plate, the first end of which is formed at the second end of the second connecting plate and extends horizontally in a direction close to the vertical plate; A fourth connecting plate, the first end of which is formed at the second end of the third connecting plate and extends upward; The fifth connecting plate has a first end formed at the second end of the fourth connecting plate and extends horizontally in a direction close to the upright plate, and the second end of the fifth connecting plate abuts against the upright plate; A flange is formed at the second end of the fifth connecting plate and extends along the inner surface of the upright plate, and the flange is fixedly connected to the upright plate; wherein, The third connecting plate is used to form the lower overlapping platform; The fifth connecting plate is used to form the upper overlapping platform.

4. The battery housing according to any one of claims 1 to 3, characterized in that, Also includes: Multiple first bottom reinforcing beams are spaced apart between two opposite side members, and the two ends of each first bottom reinforcing beam are fixedly connected to two support parts to support the base plate.

5. The battery housing according to claim 4, characterized in that, Also includes: Multiple bottom sealing plates are disposed between two adjacent first bottom reinforcing beams to seal the gap between the two adjacent first bottom reinforcing beams.

6. The battery housing according to any one of claims 1 to 3, characterized in that, Also includes: Multiple second bottom reinforcing beams are provided, spaced apart between two opposing side members, and both ends of each second bottom reinforcing beam are fixedly connected to the support portions of the two side members to support the base plate; and, The second bottom reinforcing beam is equipped with a locating pin; The base plate is provided with a first positioning hole, and the water-cooled plate is provided with a second positioning hole. The positioning pin passes through the first positioning hole and the second positioning hole to position the base plate and the water-cooled plate.

7. The battery housing according to any one of claims 1 to 3, characterized in that, The side panel also includes an enclosure portion, which is disposed on the upper part of the upright plate, opposite to the support portion, and multiple enclosure portions are connected end to end.

8. The battery housing according to claim 7, characterized in that, The top wall of the enclosure forms a receiving portion for the sealing strip.

9. The battery housing according to claim 7, characterized in that, Also includes: Multiple reinforcing vertical beams are provided, spaced apart, and positioned between the enclosure and the support. The upper and lower ends of each reinforcing vertical beam are fixedly connected to the enclosure and the support, respectively, and a section of each reinforcing vertical beam is fixedly connected to the upright plate.

10. The battery housing according to claim 9, characterized in that, Also includes: Multiple side sealing portions are provided between two adjacent reinforcing vertical beams to seal the gap between the two adjacent reinforcing vertical beams.

11. The battery housing according to claim 7, characterized in that, A first through hole is formed at the connection point of two adjacent support portions; A second through hole is formed at the connection point of two adjacent enclosure portions; The battery housing also includes: Multiple guide posts are provided for guide rods to pass through in order to connect multiple battery boxes in series. The two ends of the guide posts are respectively engaged with the first through hole and the second through hole. Multiple first reinforcing members, each first reinforcing member having a third through hole, the first reinforcing member connecting two adjacent support portions, and the third through hole being directly opposite the first through hole; Multiple second reinforcing members, each having a fourth through hole, the second reinforcing member connecting two adjacent enclosure portions, with the fourth through hole facing the second through hole.

12. A battery, characterized in that, Includes the battery housing according to any one of claims 1 to 11.

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