Battery box and battery

Abstract

The utility model provides a battery box and a battery, the battery box comprises a box body, a water cooling plate and a plurality of middle reinforcing beams, the box body is provided with a bottom plate, a containing space is defined in the box body, the plurality of middle reinforcing beams are located in the containing space, and the plurality of middle reinforcing beams are arranged on the bottom plate at intervals; each middle reinforcing beam is provided with a protruding part protruding upwards out of the bottom plate, the water cooling plate is arranged in the containing space and fixed to the multiple middle reinforcing beams, and the position, making contact with the protruding part of each middle reinforcing beam, of the bottom wall of the water cooling plate is fixed through structural adhesive. According to the battery box, the position where the bottom wall of the water cooling plate is in contact with the protruding part of each middle reinforcing beam is fixed through the structural adhesive, so that the probability that a fastener is loosened due to long-term vibration of the battery is reduced, and the safety of the water cooling plate and the battery module mounted on the water cooling plate is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery box and a battery. 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 includes a battery comprising a housing, battery modules, and a water-cooling plate. The battery modules and water-cooling plate are housed within the housing, with the water-cooling plate used to regulate the temperature of the battery modules. The housing is manufactured using sheet metal parts, and the bottom plate of the housing is fixed to the water-cooling plate with screws. Over prolonged vibration, these screws can easily loosen, causing the battery modules to shift and affecting battery safety. Utility Model Content

[0003] This application provides a battery box and a battery. In the battery box, the bottom wall of the water-cooling plate is fixed with structural adhesive at the position where it contacts the raised part of each intermediate reinforcing beam, which reduces the probability of fasteners loosening due to long-term vibration of the battery and improves the safety of the water-cooling plate and the battery module installed on it.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] In a first aspect, this application provides a battery box, comprising: a box body having a bottom plate and defining an accommodating space within the box body; a plurality of intermediate reinforcing beams located in the accommodating space and spaced apart on the bottom plate, each intermediate reinforcing beam having a raised portion protruding upward from the bottom plate; and a water-cooling plate disposed in the accommodating space and fixed to the plurality of intermediate reinforcing beams, wherein the bottom wall of the water-cooling plate is fixed to the position where it contacts the raised portion of each intermediate reinforcing beam by structural adhesive.

[0006] As an alternative implementation, the interior of the water-cooled plate defines multiple flow cavities, and the bottom wall of the water-cooled plate has multiple downwardly protruding protrusions, each protrusion forming at least a portion of the wall surface of each flow cavity; the raised portion of each intermediate reinforcing beam has a recess for accommodating the protrusion; the position where the protrusion and the recess contact each other is fixed by structural adhesive.

[0007] As an alternative implementation, each protrusion extends coiledly, and at least some of the protrusions pass through a raised portion of an intermediate reinforcing beam multiple times. Each raised portion is provided with multiple recesses to accommodate multiple protrusions and the multiple-passing protrusions.

[0008] As an optional implementation, each intermediate reinforcing beam also has at least one connecting portion, each connecting portion being connected to the raised portion for direct or indirect contact with the base plate; a first gap is formed between the bottom wall of the water-cooled plate and the connecting portion, and the first gap is filled with expanding foam.

[0009] As an alternative implementation, a second gap is formed between the bottom wall of the water-cooled plate and the bottom plate, and the second gap is filled with expanding foam.

[0010] As an optional implementation, the enclosure also includes side panels formed around the periphery of the base plate and extending upward to form a receiving space; the battery box also includes:

[0011] Multiple bottom reinforcements are disposed in the receiving space, and each bottom reinforcement has a first bend and a second bend. The first bend is connected to the bottom plate, and the second bend is connected to the side plate. The water-cooled plate has a fixing part, and the fixing part, the raised part, and the first bend are fixedly connected by fasteners.

[0012] As an optional implementation, a buffer portion is provided inside the raised portion; the fixing portion, the raised portion, the buffer portion and the first bending portion are fixedly connected by fasteners.

[0013] As an alternative implementation, the raised portion includes a main body plate and two intermediate plates, which are respectively formed on both sides of the main body plate and extend downward to form a groove structure; a buffer portion is disposed in the groove structure.

[0014] As an optional implementation, the enclosure also includes a side panel formed around the periphery of the base plate and extending upward to form an accommodating space. The enclosure has an inwardly extending flange extending from the top of the side panel. The battery box also includes a plurality of top reinforcing members disposed at the connection between the inwardly extending flange and the side panel, and each top reinforcing member has a third bend and a fourth bend, the third bend being connected to the inwardly extending flange and the fourth bend being connected to the side panel.

[0015] Secondly, this application also provides a battery, including the battery case of any of the above-mentioned embodiments. This application provides...

[0016] In the battery box of this application, each intermediate reinforcing beam has an upward protrusion protruding from the base plate. When the water-cooling plate is fixed to multiple intermediate reinforcing beams, the bottom wall of the water-cooling plate can directly contact the protrusion of the intermediate reinforcing beam, forming a gap between the bottom wall of the water-cooling plate and the base plate. The contact points between the bottom wall of the water-cooling plate and the protrusion of each intermediate reinforcing beam are fixed with structural adhesive. This improves the stability of the water-cooling plate and the intermediate reinforcing beams, reduces the loosening of fasteners due to long-term battery vibration, and improves the safety of the water-cooling plate and the battery modules mounted on it. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the battery box in one embodiment of this application;

[0019] Figure 2 This is an exploded view of the battery box in one embodiment of this application;

[0020] Figure 3 This is a top view of the battery box in one embodiment of this application;

[0021] Figure 4 For along Figure 3 Cross-sectional view obtained by cutting along section line AA;

[0022] Figure 5 for Figure 4 Enlarged view of part B;

[0023] Figure 6 for Figure 4 Enlarged view of part C;

[0024] Figure 7 for Figure 4 Enlarged view of part D;

[0025] Figure 8 For along Figure 3 Cross-sectional view obtained by cutting along the EE section line;

[0026] Figure 9 for Figure 8 Enlarged view of part F;

[0027] Figure 10 This is a schematic diagram of the bottom reinforcement in a battery box according to one embodiment of this application;

[0028] Figure 11 This is a schematic diagram of the central reinforcement member in a battery box according to an embodiment of this application;

[0029] Figure 12 This is a schematic diagram of the top reinforcement in a battery box according to one embodiment of this application;

[0030] Figure 13 This is a schematic diagram of a positioning beam in a battery box according to one embodiment of this application;

[0031] Figure 14 This is a schematic diagram of a battery pack in one embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Battery box; 110. Box body; 111. Accommodation space; 112. Base plate; 112a. First perforation; 114. Side panel; 116. Inner flange; 116a. Second perforation; 120. Bottom reinforcement; 122. First bend; 124. Second bend; 126. First bottom reinforcement; 128. Second bottom reinforcement; 130. Intermediate reinforcement beam; 131. Raised portion; 131a. Recessed portion; 132. Main body plate; 134. Middle Plate; 136, Connecting part; 140, Water-cooled plate; 142, Extension part; 144, Flow cavity; 146, Bottom wall; 148, Protrusion part; 149, Fixing part; 150, Positioning beam; 160, Top reinforcement; 162, Third bend part; 164, Fourth bend part; 166, First top reinforcement; 168, Second top reinforcement; 170, Sleeve; 180, Buffer part; 192, Structural adhesive; 194, Foaming adhesive; 10, Battery; 1, Battery pack. Detailed Implementation

[0034] A current technology discloses a battery comprising a housing, a battery module, and a water-cooling plate. The battery module and the water-cooling plate are housed within the housing, and the water-cooling plate is used to regulate the temperature of the battery module. The housing is manufactured from sheet metal, and the bottom plate of the housing is fixed to the water-cooling plate with screws. Over prolonged vibration, these screws can easily loosen, causing the battery module to shift and affecting battery safety.

[0035] To overcome the shortcomings of existing technologies, each intermediate reinforcing beam has an upward protrusion protruding from the base plate. When the water-cooled plate is fixed to multiple intermediate reinforcing beams, the bottom wall of the water-cooled plate can directly contact the protrusion of the intermediate reinforcing beam, forming a gap between the bottom wall of the water-cooled plate and the base plate. The contact points between the bottom wall of the water-cooled plate and the protrusion of each intermediate reinforcing beam are fixed with structural adhesive. This improves the stability of the water-cooled plate and the intermediate reinforcing beams, reduces the loosening of fasteners due to long-term battery vibration, and enhances the safety of the water-cooled plate and the battery module mounted on it.

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will be combined with the embodiments of this application. Figures 1 to 14 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in 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.

[0037] This application provides a battery box 100, which may include a box body 110, a water-cooled plate 140, and a plurality of intermediate reinforcing beams 130. The box body 110 has a bottom plate 112 and defines an accommodating space 111 within the box body 110. The plurality of intermediate reinforcing beams 130 are located in the accommodating space 111 and are spaced apart on the bottom plate 112, each intermediate reinforcing beam 130 having an upwardly projecting bulge 131 protruding from the bottom plate 112. The water-cooled plate 140 is disposed in the accommodating space 111 and is located on the plurality of intermediate reinforcing beams 130, and the bottom wall 146 of the water-cooled plate 140 is fixed at the contact point with the bulge 131 of each intermediate reinforcing beam 130 by structural adhesive 192.

[0038] In some embodiments, the housing 110 may further include a side panel 114, which is formed around the periphery of the base plate 112 and extends upward to form a receiving space 111.

[0039] In some specific embodiments, the base plate 112 and the side panel 114 can be formed by stamping sheet metal parts, that is, the base plate 112 and the side panel 114 are integrally formed. In other specific embodiments, the base plate 112 and the side panel 114 can also adopt a separate structure, that is, they can be obtained by assembly.

[0040] Multiple intermediate reinforcing beams 130 are arranged at intervals along the length of the base plate 112, and each intermediate reinforcing beam 130 is arranged along the width of the base plate 112. The two ends of each intermediate reinforcing beam 130 are respectively connected to two first bottom reinforcing members 126.

[0041] In some embodiments, the base plate 112 may be square, and a plurality of intermediate reinforcing beams 130 may be arranged at intervals along the length direction of the base plate 112, and each intermediate reinforcing beam 130 is arranged along the width direction of the base plate 112, with each end of the intermediate reinforcing beam 130 connected to two first bottom reinforcing members 126 respectively. Therefore, the plurality of intermediate reinforcing beams 130 can strengthen the strength of the central region of the base plate 112 and prevent the base plate 112 from deforming due to pressure from components.

[0042] Furthermore, the enclosure 110 may also include bottom reinforcement members 120, each bottom reinforcement member 120 having a first bent portion 122 and a second bent portion 124, the first bent portion 122 being connected to the bottom plate 112, and the second bent portion 124 being connected to the side panel 114. There are four bottom reinforcement members 120. Two bottom reinforcement members 120 are first bottom reinforcement members 126, located on opposite sides of the width direction of the bottom plate 112, and each first bottom reinforcement member 126 extending along the length direction of the bottom plate 112. Two bottom reinforcement members 120 are second bottom reinforcement members 128, located on opposite sides of the length direction of the bottom plate 112, and each second bottom reinforcement member 128 extending along the width direction of the bottom plate 112.

[0043] The two ends of the intermediate reinforcing beam 130 are respectively connected to the two first bottom reinforcing members 126. That is to say, each intermediate reinforcing beam 130 is connected by the first bottom reinforcing members 126, and is not connected to the box body 110. When multiple first bottom reinforcing members 126 bear heavy objects, the pressure of the heavy objects can be transmitted to the first bottom reinforcing members 126 through multiple first bottom reinforcing members 126. This can further share the force on the bottom plate 112 and improve the overall load-bearing capacity of the battery box 100.

[0044] Furthermore, in this embodiment, multiple intermediate reinforcing beams 130 are arranged at intervals along the length direction of the base plate 112, and each intermediate reinforcing beam 130 is arranged along the width direction of the base plate 112. The two ends of each intermediate reinforcing beam 130 are respectively connected to two first bottom reinforcing members 126. That is to say, the length of the multiple intermediate reinforcing beams 130 only needs to meet the width distance of the base plate 112. In this way, the length of the intermediate reinforcing beams 130 can be designed to be shorter, and the mechanical strength of the intermediate reinforcing beams 130 themselves can also be improved, further improving the overall load-bearing capacity of the battery box 100.

[0045] In some embodiments, the interior of the water-cooled plate 140 may define a plurality of coiled and extending flow cavities 144, each flow cavity 144 having an inlet and an outlet. The inlet is used to introduce a heat exchange medium (e.g., water), and the outlet is used to discharge the heat exchange medium. As the heat exchange medium flows inside the flow cavity 144, it provides cooling or heating to the components within the housing space 111.

[0046] Since each intermediate reinforcing beam 130 has a raised portion 131 protruding upward from the base plate 112, when the water-cooled plate 140 is fixed to the multiple intermediate reinforcing beams 130, the bottom wall 146 of the water-cooled plate 140 can directly contact the raised portion 131 of the intermediate reinforcing beam 130, and a gap is formed between the bottom wall 146 of the water-cooled plate 140 and the base plate 112.

[0047] In some embodiments, the position where the bottom wall 146 of the water-cooled plate 140 contacts the raised portion 131 of each intermediate reinforcing beam 130 is fixed by structural adhesive 192. Structural adhesive 192 refers to an adhesive that is high in strength, can withstand large loads, is resistant to aging, fatigue, and corrosion, and has stable performance over its expected lifespan, making it suitable for bonding structural components that bear strong forces.

[0048] In other words, while the water-cooled plate 140 and the intermediate reinforcing beam 130 are fixed, they are further reinforced with structural adhesive 192. This can improve the stability of the water-cooled plate 140 and the intermediate reinforcing beam 130, reduce the loosening of fasteners due to long-term vibration of the battery 10, and improve the safety of the water-cooled plate 140 and the battery 10 module installed on it.

[0049] Furthermore, the interior of the water-cooled plate 140 defines multiple flow cavities 144, and the bottom wall 146 of the water-cooled plate 140 has multiple downwardly protruding portions 148, each protruding portion 148 forming at least a portion of the wall surface of each flow cavity 144. The raised portion 131 of each intermediate reinforcing beam 130 has a recessed portion 131a for accommodating the protruding portion 148. The contact points between the protruding portion 148 and the recessed portion 131a are fixed by structural adhesive 192.

[0050] In this embodiment, a protrusion 148 is formed on the bottom wall 146 of the water-cooled plate 140, and the protrusion 148 protrudes downward to form a flow cavity 144. Since the water-cooled plate 140 is fixed to multiple intermediate reinforcing beams 130, in order to fit the raised portion 131 to the bottom wall 146 of the water-cooled plate 140, a recess 131a that accommodates the protrusion 148 can be formed on the raised portion 131 of the intermediate reinforcing beam 130. The protrusion 148 and the recess 131a are fitted one-to-one to obtain a stable laying structure of the water-cooled plate 140.

[0051] In this embodiment, since the contact area between the protrusion 148 and the recess 131a is large, the contact position between the protrusion 148 and the recess 131a is fixed by structural adhesive 192. This increases the filling area of ​​the structural adhesive 192 and further improves the fixing effect between the water-cooled plate 140 and the intermediate reinforcing beam 130.

[0052] In some embodiments, each protrusion 148 extends coiledly, and at least a portion of the protrusion 148 passes through a raised portion 131 of an intermediate reinforcing beam 130 multiple times. Each raised portion 131 is provided with a plurality of recesses 131a to accommodate the plurality of protrusions 148 and the multiple-passing protrusions 148.

[0053] In some specific embodiments, the flow cavity 144 of the water-cooled plate 140 is coiled along the width direction of the base plate 112, and the corresponding protrusion 148 is also coiled along the width direction of the base plate 112. Each intermediate reinforcing beam 130 can extend along the width direction of the base plate 112, so that each protrusion 148 can be inserted through an intermediate reinforcing beam 130 multiple times. Multiple recesses 131a can be formed on an intermediate reinforcing beam 130 to accommodate the protrusions 148, and structural adhesive 192 is filled between each recess 131a and the protrusion 148 to further improve the fixing effect between the water-cooled plate 140 and the intermediate reinforcing beam 130.

[0054] In some embodiments, each intermediate reinforcing beam 130 further has at least one connecting portion 136, each connecting portion 136 being connected to the raised portion 131 for direct or indirect contact with the base plate 112. A first gap is formed between the bottom wall 146 of the water-cooled plate 140 and the connecting portion 136, and the first gap is filled with expanding foam 194.

[0055] Foam 194 is a polyurethane elastic sealing foam material that cures by moisture and has multiple effects such as filling gaps, bonding, sealing, heat insulation, and sound absorption.

[0056] In this embodiment, due to the presence of a raised portion 131, a first gap is formed between the bottom wall 146 of the water-cooled plate 140 and the connecting portion 136. The first gap is filled with expanding foam 194, which fills the first gap and supports the portion of the bottom wall 146 of the water-cooled plate 140 that is not in direct contact with the base plate 112, thereby reinforcing the water-cooled plate 140 and improving its strength and stability.

[0057] Furthermore, a second gap is formed between the bottom wall 146 of the water-cooled plate 140 and the bottom plate 112, and the second gap is filled with expanding foam 194.

[0058] In this embodiment, due to the presence of a raised portion 131, a second gap is formed between the bottom wall 146 of the water-cooled plate 140 and the bottom plate 112. The second gap is filled with expanding foam 194, which fills the second gap and supports the portion of the bottom wall 146 of the water-cooled plate 140 that is not in direct contact with the bottom plate 112, thereby reinforcing the water-cooled plate 140 and improving its strength and stability.

[0059] In some embodiments, the housing 110 may further include a side panel 114, which is formed around the periphery of the base plate 112 and extends upward to form a receiving space 111. The battery box 100 may further include a plurality of bottom reinforcements 120 disposed in the receiving space 111, and each bottom reinforcement 120 has a first bend 122 and a second bend 124, the first bend 122 being connected to the base plate 112 and the second bend 124 being connected to the side panel 114.

[0060] The water-cooled plate 140 has a fixing part 149, and the fixing part 149, the raised part 131 and the first bending part 122 are fixedly connected by fasteners.

[0061] In this embodiment, the bottom reinforcing member 120 can strengthen the structure of the housing 110, and the first bent portion 122 and the second bent portion 124 of the bottom reinforcing member 120 are respectively connected to the bottom plate 112 and the side panel 114. The fixing portion 149 of the water-cooled plate 140, the raised portion 131 of the intermediate reinforcing member, and the first bent portion 122 of the bottom reinforcing member 120 are fixed by fasteners, so that the intermediate reinforcing member and the water-cooled plate 140 can be fixed on the housing 110, so that the three form a stable whole.

[0062] Furthermore, a buffer portion 180 is provided inside the raised portion 131. The fixing portion 149, the raised portion 131, the buffer portion 180, and the first bending portion 122 are fixedly connected by fasteners.

[0063] In some embodiments, the raised portion 131 may further include a main body plate 132 and two intermediate plates 134, which are respectively formed on both sides of the main beam in the width direction and bend downward. That is, the main body plate 132 and the two intermediate plates 134 form a U-shaped structure, and the buffer portion 180 may be disposed inside the U-shaped structure. When the fixing portion 149, the raised portion 131, the buffer portion 180 and the first bending portion 122 are fixed, the buffer portion 180 can play a buffering effect similar to a gasket, making the fixing effect between the fixing portion 149, the raised portion 131 and the first bending portion 122 more effective and preventing loosening caused by vibration.

[0064] In some embodiments, the housing 110 further includes a side panel 114 formed around the periphery of the base plate 112 and extending upward to form a receiving space 111. The housing 110 has an inwardly extending flange 116 extending inward from the top of the side panel 114. The battery box 100 may also include a plurality of top reinforcements 160 disposed at the connection between the inwardly extending flange 116 and the side panel 114. Each top reinforcement 160 has a third bend 162 and a fourth bend 164, the third bend 162 being connected to the inwardly extending flange 116 and the fourth bend 164 being connected to the side panel 114.

[0065] In some specific embodiments, since each top reinforcement 160 has a third bend 162 and a fourth bend 164, the third bend 162 is connected to the inner flange 116, and the fourth bend 164 is connected to the side panel 114, and the inner flange 116 and the side panel 114 are not on the same plane, the third bend 162 and the fourth bend 164 can be adapted to bend according to the angle between the inner flange 116 and the side panel 114 so as to be connected to the inner flange 116 and the side panel 114 respectively.

[0066] In this embodiment, since the third bend 162 of each top reinforcement 160 is connected to the inner flange 116 and the fourth bend 164 is connected to the side panel 114, each top reinforcement 160 can be pulled by its own strength so that the inner flange 116 and the side panel 114 can maintain their original design shape. When carrying the components in the housing space 111, the deformation of the housing 110 is reduced and the safety of the battery 10 is improved.

[0067] Furthermore, the housing 110 is generally square. There are four top reinforcing members 160. Two of the top reinforcing members 160 are first top reinforcing members 166, located on either side of the width of the housing 110, and each first top reinforcing member 166 extends along the length of the housing 110. Two of the top reinforcing members 160 are second bottom reinforcing members 128, located on either side of the length of the housing 110, and each second bottom reinforcing member 168 extends along the width of the housing 110.

[0068] In some embodiments, the housing 110 has an inwardly flanged edge 116 extending inward from the top of the side panel 114. A plurality of first through holes 112a are provided on the bottom plate 112. A plurality of second through holes 116a are provided on the inwardly flanged edge 116, and the plurality of second through holes 116a correspond one-to-one with the plurality of first through holes 112a in the vertical direction.

[0069] The battery box 100 may also include a plurality of sleeves 170, which are disposed in the receiving space 111. The plurality of sleeves 170, the plurality of first through holes 112a and the plurality of second through holes 116a correspond one-to-one. The lower end of each sleeve 170 is directly opposite the first through hole 112a and the upper end of each sleeve 170 is directly opposite the second through hole 116a.

[0070] In this embodiment, sleeves 170 are disposed in the receiving space 111, and the lower end of each sleeve 170 is directly opposite the first through hole 112a, and the upper end of each sleeve 170 is directly opposite the second through hole 116a. That is to say, each sleeve 170 is connected between the bottom reinforcement 120 and the top reinforcement 160. In this way, the bottom reinforcement 120 and the top reinforcement 160 can be used to form a reinforcement, making the bottom reinforcement 120, the top reinforcement 160 and the box 110 more integrated and the reinforcement effect better.

[0071] In addition, each battery 10 has a battery case 100, within which the battery 10 module is disposed. Multiple batteries 10 can be assembled into a battery pack 1. In some embodiments, multiple batteries 10 can be stacked to form the battery pack 1.

[0072] Specifically, multiple batteries 10 can be stacked in series using guide rods to form a battery pack 1. In this embodiment, the lower end of each sleeve 170 is directly opposite the first through hole 112a, and the upper end of each sleeve 170 is directly opposite the second through hole 116a, so that the guide rods can be stacked in series through the first through hole 112a, the sleeves 170, and the second through hole 116a.

[0073] With the accelerating electrification of construction machinery, multiple battery enclosures are needed to increase operating range and achieve greater power capacity. Existing battery packs require one or more layered frames for installation, which presents several technical drawbacks: First, the battery enclosures themselves cannot be fixed in place, and gaps exist during assembly of enclosures within the same layer, resulting in a large space occupation for the entire battery system; second, to ensure enclosure versatility, each battery enclosure needs to be equipped with various interfaces (water cooling interface, positive interface, negative interface, manual operation switch communication interface, heating interface), increasing the cost per enclosure; third, due to the presence of the battery mounting frame, the entire battery system needs to be installed layer by layer, resulting in long installation time, low installation efficiency, and increased main unit assembly time.

[0074] In this embodiment, since the battery pack 1 is constructed by stacking multiple batteries 10 in series using multiple guide rods 20, this method eliminates the need for a frame for installation and reduces the gap between the batteries 10, thereby reducing the volume of the battery pack 1. Furthermore, since the multiple batteries 20 are directly connected in series, some interfaces (such as MSD) can be eliminated or shared during the actual assembly of the casing, which also reduces the cost of a single battery 10. In addition, this method of connecting multiple batteries 10 in series using multiple guide rods 20 is simple, convenient, and efficient to install, which is beneficial for mass production.

[0075] Furthermore, the housing 110 is generally square, with first through holes 112a at the four corners of the base plate 112 and second through holes 116a at the four corners of the inner flange 116 of the housing 110. Four sleeves 170 are provided, each located at one of the four corners of the housing 110. Each battery pack 1 can be stacked in series via four guide rods.

[0076] In some embodiments, the battery box 100 may further include two positioning beams 150, which are respectively disposed on both sides of the water-cooled plate 140, and each positioning beam 150 is fixed to the bottom plate 112 or the bottom reinforcement 120 to position the water-cooled plate 140.

[0077] In this embodiment, two positioning beams 150 are arranged at intervals along the length of the base plate 112, and each intermediate reinforcing beam 130 is arranged along the width of the base plate 112. The water-cooled plate 140 is disposed between the two positioning beams 150, and the water-cooled plate 140 is more stably placed in the receiving space 111 under the clamping of the two positioning beams 150.

[0078] Furthermore, the positioning beam 150 may also include a limiting part 152 and two mounting parts 154. The limiting part 152 can limit the water-cooled plate 140, and the two mounting parts 154 can be respectively disposed on both sides of the protrusion 152 so as to fit against the base plate 112.

[0079] Furthermore, the water-cooled plate 140 has an extension 142 on its periphery, and the limiting part 152 is provided with a relief groove 152a to avoid the extension 142.

[0080] In addition, this application also provides a battery 10, which may include the housing 110 in any of the above embodiments.

[0081] Furthermore, the battery 10 may also include a battery 10 module and components such as a cooling module, a display module, and a detection module that are compatible with the battery 10 module. These components may be arranged in the accommodating space 111 of the housing 110.

[0082] In the battery box 100, since the first bend 122 of each bottom reinforcement 120 is connected to the bottom plate 112 and the second bend 124 is connected to the side plate 114, each bottom reinforcement 120 can be pulled by its own strength so that the bottom plate 112 and the side plate 114 can maintain their original design shape. When carrying the components in the storage space 111, the deformation of the box 110 is reduced and the safety of the battery 10 is improved.

[0083] The flow cavity 144 of the water-cooled plate 140 is coiled along the width direction of the base plate 112, and the corresponding protrusion 148 is also coiled along the width direction of the base plate 112. Each intermediate reinforcing beam 130 can extend along the width direction of the base plate 112, so that each protrusion 148 can be inserted into an intermediate reinforcing beam 130 multiple times. Multiple recesses 131a can be formed on an intermediate reinforcing beam 130 to accommodate the protrusions 148, and structural adhesive 192 is filled between each recess 131a and the protrusion 148 to further improve the fixing effect between the water-cooled plate 140 and the intermediate reinforcing beam 130.

[0084] 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.

[0085] 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.

[0086] 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).

[0087] 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 at a certain angle or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0088] 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 box characterized by, Comprising: a box body having a bottom plate, and a containing space defined in the box body; a plurality of intermediate reinforcing beams located in the containing space, and spacedly arranged on the bottom plate, each of the intermediate reinforcing beams having a raised portion protruding upwardly from the bottom plate; a water-cooling plate arranged in the containing space, and fixed on the plurality of intermediate reinforcing beams, a bottom wall of the water-cooling plate being fixed at a position where the raised portion of each of the intermediate reinforcing beams is contacted by the bottom wall of the water-cooling plate.

2. The battery box according to claim 1, wherein an inside of the water-cooling plate is defined with a plurality of flow channels, and the bottom wall of the water-cooling plate has a plurality of protruding portions protruding downwardly, each of the protruding portions being used to form at least a partial wall of each of the flow channels; the raised portion of each of the intermediate reinforcing beams has a recessed portion used to accommodate the protruding portion; the protruding portion and the recessed portion are fixed at a position where they are contacted by the structural adhesive.

3. The battery box according to claim 2, wherein each of the protruding portions is coiled and arranged, and at least a part of the protruding portions is arranged in the raised portion of one of the intermediate reinforcing beams multiple times, each of the raised portions is provided with a plurality of recessed portions to accommodate the protruding portions and the protruding portions arranged multiple times.

4. The battery box according to any one of claims 1 to 3, wherein each of the intermediate reinforcing beams further has at least one connecting portion connected with the raised portion, and used to directly or indirectly abut with the bottom plate; a first gap is formed between the bottom wall of the water-cooling plate and the connecting portion, and the first gap is filled with foaming adhesive.

5. The battery box according to any one of claims 1 to 3, wherein a second gap is formed between the bottom wall of the water-cooling plate and the bottom plate, and the second gap is filled with foaming adhesive.

6. The battery box according to any one of claims 1 to 3, wherein the box body further comprises a side wall formed at a periphery of the bottom plate and extending upwardly to form the containing space; the battery box further comprises: a plurality of bottom reinforcing members arranged in the containing space, and each of the bottom reinforcing members has a first bent portion connected with the bottom plate and a second bent portion connected with the side wall; the water-cooling plate has a fixing portion, and the fixing portion, the raised portion and the first bent portion are fixedly connected by fasteners.

7. The battery box according to claim 6, wherein the raised portion is internally provided with a buffer portion; the fixing portion, the raised portion, the buffer portion and the first bent portion are fixedly connected by the fasteners.

8. The battery box according to claim 7, wherein the raised portion comprises a main plate and two intermediate plates, the two intermediate plates are respectively formed at two sides of the main plate and extend downwardly to form a recessed structure; the buffer portion is arranged in the recessed structure.

9. The battery box according to any one of claims 1 to 3, wherein The box further comprises a side wall formed at the periphery of the bottom plate and extending upward to constitute the containing space, the box having an inner flange extending inward from the top end of the side wall; The battery box further comprises: A plurality of top reinforcing members, the plurality of top reinforcing members being arranged at the connection between the inner flange and the side wall, and each of the top reinforcing members having a third bending portion and a fourth bending portion, the third bending portion being connected with the inner flange, and the fourth bending portion being connected with the side wall.

10. A battery, characterized by A battery box comprising any one of claims 1 to 9.

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