Battery box and battery

Abstract

The utility model provides a battery box and a battery, and relates to the technical field of batteries. The battery box comprises a box body, a box cover and a conductive part; the box cover covers the box body to define a mounting cavity; the conductive part has elasticity and is located in the installation cavity, one of the box cover and the box body is connected with the conductive part, the other one of the box cover and the box body abuts against the conductive part, and the conductive part is in an elastic compression state. According to the invention, the elastic conductive part is used as the conductive part between the box body and the box cover, and the conductive part is in the elastic compression state, so that the conductive part can be kept to abut against the box body and the box cover based on the elasticity of the conductive part, the electric connection between the box body and the box cover is reliable, and a bolt does not need to be configured for locking. Therefore, a battery production line does not need to be provided with a bolt locking station, so that the production efficiency of the battery can be improved, and the production cost of the battery can be reduced.

Description

Technical Field

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

[0002] Batteries are electrical products that generate electromagnetic radiation during use and are also interfered by external electromagnetic radiation. Therefore, in order to reduce the electromagnetic radiation interference caused by the battery to the outside world and the electromagnetic radiation interference received by the battery, it is necessary to improve the anti-electromagnetic radiation performance of the battery box. At present, the anti-electromagnetic radiation performance of the battery box is mainly improved by electrically connecting the battery box body and the box cover to form an electromagnetic shielding body with anti-electromagnetic radiation performance. In order to achieve the electrical connection between the box body and the box cover, a conductive surface is reserved at the corresponding electrical connection position between the box body and the box cover, and the box cover and the box body are locked with bolts to tighten the conductive surface on the box cover to the conductive surface on the box body, thereby making the box body and the box cover conductively contact.

[0003] In this electrical connection method, bolts are required to lock the box cover and the box body so that the conductive surface on the box cover and the conductive surface on the box body are electrically connected and tightly connected. Therefore, the battery production line needs to add bolt locking stations, which leads to low production efficiency and increased battery production costs. Utility Model Content

[0004] The embodiments of the present application provide a battery box and a battery, which can improve the production efficiency of the battery.

[0005] In the first aspect, an embodiment of the present application provides a battery box, which includes a box body, a box cover and a conductive member; the box cover is covered on the box body to define an installation cavity; the conductive member is elastic, the conductive member is located in the installation cavity, one of the box cover and the box body is connected to the conductive member, and the other is abutted against the conductive member, and the conductive member is in an elastically compressed state.

[0006] In one embodiment, along the abutment direction, the conductive member includes a plurality of spring segments connected in sequence, and two adjacent spring segments are arranged at an angle; wherein one of the box cover and the box body is connected to the spring segment located at one end of the conductive member, and the other abuts against the spring segment located at the other end of the conductive member.

[0007] In one embodiment, the conductive member includes three spring segments, which are a first spring segment, a second spring segment and a third spring segment connected in sequence; wherein one of the box cover and the box body is connected to the first spring segment, and the other is in contact with the third spring segment.

[0008] In one embodiment, the conductive member further includes an anti-scratch sheet, which is arranged opposite to the second elastic sheet and connected to an end of the third elastic sheet away from the second elastic sheet.

[0009] In one embodiment, along a direction perpendicular to the third elastic sheet, the anti-scratch sheet has a height dimension H1 that satisfies: 2mm≤H1≤5mm.

[0010] In one embodiment, when the conductive element is in a natural state, the first spring sheet is perpendicular to the abutment direction, and the third spring sheet has an angle β with the abutment direction, satisfying: 0<β<90°, and the angle β is located on the side of the third spring sheet away from the first spring sheet.

[0011] In one embodiment, when the conductive element is in a natural state, the angle between the second elastic sheet and the first elastic sheet is α, which satisfies: 30°≤α<90°.

[0012] In one embodiment, the first spring sheet has a first end connected to the second spring sheet and a second end away from the first end, and the first spring sheet has a length dimension L1 from the first end to the second end, satisfying: 5mm≤L1≤17.6mm, and / or, the third spring sheet has a third end connected to the second spring sheet and a fourth end away from the third end, and the third spring sheet has a length dimension L2 from the third end to the fourth end, satisfying: 5mm≤L2≤17.6mm.

[0013] In one embodiment, the first spring sheet has a first end connected to the second spring sheet and a second end away from the first end. The direction from the first end to the second end is the length direction. In a direction perpendicular to both the length direction and the abutment direction, the first spring sheet has a width dimension W1, satisfying: 6mm≤W1≤8mm, and / or the third spring sheet has a width dimension W2, satisfying: 6mm≤W2≤8mm.

[0014] In one embodiment, the conductive member further includes a first vertical section, the first vertical section is located between the first spring sheet and the second spring sheet, two ends of the first vertical section are respectively connected to the first spring sheet and the second spring sheet, and an extension direction of the first vertical section is parallel to the abutment direction, and / or the conductive member further includes a second vertical section, the second vertical section is located between the second spring sheet and the third spring sheet, two ends of the second vertical section are respectively connected to the second spring sheet and the third spring sheet, and an extension direction of the second vertical section is parallel to the abutment direction.

[0015] In one embodiment, the battery box also includes a fixing bolt, and the conductive member includes a plurality of spring segments connected in sequence, wherein the spring segment connected to one of the box cover and the box body is a first spring segment, and the spring segment away from the first spring segment abuts against the other of the box cover and the box body; wherein a through hole is provided on the first spring segment, and the screw end of the fixing bolt passes through the through hole and is connected to one of the box cover and the box body connected to the first spring segment.

[0016] In one embodiment, the remaining spring fragments except the first spring fragment constitute a main body, the first spring fragment has a first end connected to the main body and a second end away from the first end, the through hole is arranged away from the first end, and the minimum spacing between the first end and the main body from the first end to the second end is L3, satisfying: 7.7mm≤L3≤10mm.

[0017] In one embodiment, when the conductive member is in a natural state, in the abutting direction, the size of the conductive member is H0, and when the conductive member is in an elastically compressed state, the size of the conductive member is H2, satisfying: 0.7H0≤H2≤0.8H0.

[0018] In a second aspect, an embodiment of the present application provides a battery, which includes a battery module and the aforementioned battery box, wherein the battery module is disposed in the installation cavity.

[0019] Beneficial effects of the embodiments of the present application:

[0020] In the embodiment of the present application, an elastic conductive member is used as a conductive member between the box body and the box cover, and the conductive member is in an elastically compressed state, so that the conductive member can maintain tight contact with the box body and the box cover based on its own elasticity, so that the electrical connection between the box body and the box cover is reliable, and there is no need to configure bolts for locking. In this way, the battery production line does not need to be configured with a bolt locking station, thereby improving the production efficiency of the battery and reducing the production cost of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 is a schematic diagram of the structure of a battery box provided in an embodiment of the present application;

[0023] Figure 2 is a partial top view of a battery box provided in an embodiment of the present application;

[0024] Figure 3 is along Figure 2 A schematic diagram of the local structure of the cross-sectional view of AA;

[0025] Figure 4 is a schematic structural diagram of a conductive member provided in an embodiment of the present application;

[0026] Figure 5 is a schematic structural diagram of another conductive member provided in an embodiment of the present application;

[0027] Figure 6 is a side view of a conductive member provided in an embodiment of the present application;

[0028] Figure 7 is a side view of another conductive member provided by an embodiment of the present application;

[0029] Figure 8 It is a schematic diagram of the position of the conductive member provided in the embodiment of the present application when it is in its original state.

[0030] Description of reference numerals:

[0031] 001-battery box;

[0032] 011-Box cover;

[0033] 012-box; 121-threaded hole;

[0034] 013-installation cavity;

[0035] 014-conductive member; 141-first spring piece; 1411-first end; 1412-second end; 142-second spring piece; 143-third spring piece; 1431-third end; 1432-fourth end; 144-spring piece; 145-anti-scratch piece; 146-first vertical section; 147-second vertical section; 148-rounded chamfer; 149-through hole;

[0036] 015-Fixing bolt. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the description of the embodiments of the present application, words such as "example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "example" or "for example" in the embodiments of the present application is not to be interpreted as being more preferred or having more advantages than another embodiment or design. The use of words such as "example" or "for example" is intended to present relative concepts in a clear manner.

[0041] To facilitate understanding of the scheme of the present application, the spline curves and arrows used in the drawings are explained here: the components indicated by the spline curves without arrows are solid components, that is, components with solid structures; the components indicated by the spline curves with arrows are virtual components, that is, components without solid structures.

[0042] See also Figures 1 to 3 , Figure 1 is a schematic diagram of the structure of the battery box 001 provided in an embodiment of the present application, Figure 2 is a partial top view of the battery box 001 provided in an embodiment of the present application, Figure 3 is along Figure 2 013 is a partial structural diagram of a cross-sectional view taken along line AA in FIG. 1 , an embodiment of the present application provides a battery box 001. The battery box 001 includes a box body 012, a box cover 011, and a conductive member 014. The box cover 011 covers the box body 012 to define an installation cavity 013. The conductive member 014 is elastic. The conductive member 014 is located in the installation cavity 013. One of the box cover 011 and the box body 012 is connected to the conductive member 014, and the other is in contact with the conductive member 014, and the conductive member 014 is in an elastically compressed state.

[0043] It can be understood that in order to make the battery box 001 an electromagnetic shielding body with electromagnetic radiation protection performance, the conductive member 014 is electrically connected to the box body 012 and the box cover 011. Accordingly, the part where the box body 012 and the box cover 011 contact with the conductive member 014 is provided with a conductive surface.

[0044] The box cover 011 may be in contact with the conductive member 014, and the box body 012 may be connected with the conductive member 014. In this way, the conductive member 014 may be first fixed in the box body 012, and then as the box cover 011 is closed on the box body 012, the box cover 011 gradually comes into contact with the conductive member 014. When the box cover 011 is closed, the conductive member 014 is in an elastically compressed state.

[0045] Alternatively, the box cover 011 is connected to the conductive member 014, and the box body 012 is in contact with the conductive member 014. In this way, the conductive member 014 can be first fixed to the side wall of the box cover 011 facing the box body 012, and then as the box cover 011 is closed on the box body 012, the conductive member 014 is inserted into the box body 012 and in contact with the box body 012. When the box cover 011 is closed, the conductive member 014 is in an elastically compressed state.

[0046] After the box cover 011 is closed, the box cover 011 compresses the conductive member 014 by its own weight, and the conductive member 014 is tightly attached to the inner side of the box cover 011 by the rebound force, thereby completing the electrical connection among the box body 012, the conductive member 014 and the box cover 011.

[0047] Exemplarily, the elasticity of the conductive element 014 means that it has compression rebound capability. The structure of the conductive element 014 includes but is not limited to a spiral structure, a C-shaped structure, an S-shaped structure, a Z-shaped structure, and a bellows structure.

[0048] In addition, the material of the conductive member 014 includes but is not limited to copper, iron, aluminum, copper alloy, etc. Optionally, the material of the conductive member 014 is C17200 beryllium copper.

[0049] In this embodiment, the conductive member 014 with elasticity is used as the conductive component between the box body 012 and the box cover 011, and the conductive member 014 is in an elastic compression state, so that the conductive member 014 can maintain tight contact with the box body 012 and the box cover 011 based on its own elasticity, so that the electrical connection between the box body 012 and the box cover 011 is reliable, and there is no need to configure bolts for locking. In this way, the battery production line does not need to be configured with a bolt locking station, thereby improving the production efficiency of the battery and reducing the production cost of the battery.

[0050] In addition, since it is not necessary to use bolts to lock the box body 012 and the box cover 011, the box cover 011 can be fixed to the box body 012 by gluing on the contact surface between the box body 012 and the box cover 011, so that they are connected as a whole. This method of fixing the box cover 011 is simple and convenient to operate, and can further improve the production efficiency of the battery. Moreover, this method does not require the configuration of holes on the box body 012 and the box cover 011 to match the bolts. In this way, the strength of the box body 012 and the box cover 011 can be improved, and there is no need to consider the interference of the arrangement of the holes with other components and structures, which reduces the design difficulty.

[0051] See also Figure 4 , Figure 4 014 is a schematic diagram of the structure of the conductive member 014 provided in an embodiment of the present application. In one embodiment, along the abutting direction, the conductive member 014 includes a plurality of spring segments 144 connected in sequence. Two adjacent spring segments 144 are arranged at an angle, specifically, two adjacent spring segments 144 are arranged at an acute angle. Among them, one of the box cover 011 and the box body 012 is connected to the spring segment 144 located at one end of the conductive member 014, and the other abuts against the spring segment 144 located at the other end of the conductive member 014.

[0052] It can be understood that the conductive member 014 may include two, three, four, or five sequentially connected elastic segments 144. When the conductive member 014 includes two sequentially connected elastic segments 144, the conductive member 014 may be a V-shaped structure or a U-shaped structure; when the conductive member 014 includes three sequentially connected elastic segments 144, the conductive member 014 may be a Z-shaped structure or an S-shaped structure.

[0053] In addition, the plurality of spring segments 144 may be formed by bending a metal sheet multiple times, or the plurality of spring segments 144 may be welded in sequence to form the conductive member 014 .

[0054] In this embodiment, through the above arrangement, the conductive member 014 has a simple structure and is easy to manufacture, thereby further improving the manufacturing efficiency of the battery box 001 and controlling the manufacturing cost of the battery box 001 .

[0055] See also Figure 5 , Figure 5 014 is a schematic diagram of the structure of another conductive member 014 provided in an embodiment of the present application. In one embodiment, the conductive member 014 includes three elastic segments 144. The three elastic segments 144 are respectively a first elastic segment 141, a second elastic segment 142 and a third elastic segment 143 connected in sequence. Among them, one of the box cover 011 and the box body 012 is connected to the first elastic segment 141, and the other is in contact with the third elastic segment 143.

[0056] In this embodiment, through the above-mentioned arrangement, on the one hand, the conductive member 014 has the elasticity sufficient to abut between the top cover and the box body 012, thereby improving the stability of the electrical connection between the conductive member 014 and the top cover and the box body 012; on the other hand, the structural molding difficulty of the conductive member 014 is low and the molding efficiency is high.

[0057] See also Figure 4 In one embodiment, the conductive member 014 further includes an anti-scratch sheet 145. The anti-scratch sheet 145 is disposed opposite to the second elastic sheet 142 and connected to an end of the third elastic sheet 143 away from the second elastic sheet 142.

[0058] Specifically, a rounded chamfer 148 is provided at the connection between the third spring piece 143 and the anti-scratch piece 145. The rounded chamfer 148 allows the third spring piece 143 to smoothly transition to the anti-scratch piece 145, thereby reducing the stress at the connection between the third spring piece 143 and the anti-scratch piece 145.

[0059] In this embodiment, the anti-scratch sheet 145 is provided at one end of the third elastic sheet 143 away from the second elastic sheet 142, so as to prevent the third elastic sheet 143 from scratching the parts abutting against it. In this way, the surface coating of the one of the box body 012 and the box cover 011 that contacts the third elastic sheet 143 is prevented from being damaged, thereby improving the reliability of the battery.

[0060] See also Figure 6 , Figure 6 It is a side view of the conductive member 014 provided in an embodiment of the present application. In one embodiment, along a direction perpendicular to the third elastic sheet 143, the anti-scratch sheet 145 has a height dimension H1, which satisfies: 2mm≤H1≤5mm.

[0061] It can be understood that H1 can be but is not limited to 2mm, 2.5mm, 2.9mm, 3mm, 3.2mm, 3.5mm, 3.72mm, 4mm, 4.2mm, 4.4mm, 4.6mm, 4.9mm, and 5mm.

[0062] Furthermore, 3mm≤H1≤4mm.

[0063] In this embodiment, through the above-mentioned limitation, on the one hand, it is possible to avoid the anti-scratch sheet 145 having a height dimension that is too small, resulting in its poor anti-scratch performance; on the other hand, it is possible to avoid the anti-scratch sheet having a height dimension that is too large, resulting in a higher material cost of the conductive part 014, thereby controlling the manufacturing cost of the battery box 001.

[0064] See also Figure 5 In one embodiment, when the conductive member 014 is in a natural state, the first spring sheet 141 is perpendicular to the abutment direction, and an angle β is formed between the third spring sheet 143 and the abutment direction, satisfying: 0<β<90°, and the angle β is located on the side of the third spring sheet 143 away from the first spring sheet 141.

[0065] It will be appreciated that the angle β may be, but is not limited to, 5°, 10°, 15°, 5°, 10°, 15°, 17.5°, 19.5°, 20°, 25°, 30°, 36°, 35°, 37°, 40°, 45°, 48°, 50°, 55°, 58.2°, 60°, 66°, 75°, 85°, or 89°.

[0066] Furthermore, 75°≤β≤85°.

[0067] In this embodiment, through the above arrangement, when the third spring piece 143 abuts against the relevant component, the connection part between the second spring pieces 142 can be in a state of bending and deformation. In this way, on the one hand, the abutting force between the third spring piece 143 and the component abutting therewith can be increased, and then the stability of the electrical connection between the third spring piece 143 and the component abutting therewith can be increased; on the other hand, the elasticity of the conductive member 014 can be improved, so that it has a relatively small number of spring pieces 144, while having a relatively large elasticity to meet the electrical connection requirements between the box body 012 and the box cover 011.

[0068] See also Figure 5 In one embodiment, when the conductive member 014 is in a natural state, the angle between the second elastic piece 142 and the first elastic piece 141 is α, which satisfies: 30°≤α<90°.

[0069] It will be appreciated that the angle α may be, but is not limited to, 5°, 10°, 15°, 5°, 10°, 15°, 17.5°, 19.5°, 20°, 25°, 30°, 36°, 35°, 37°, 40°, 45°, 48°, 50°, 55°, 58.2°, 60°, 66°, 75°, 85°, or 89°.

[0070] Furthermore, 40°≤α≤50°.

[0071] In this embodiment, through the above-mentioned configuration, the first spring piece 141 and the second spring piece 142 have a suitable angle. On the one hand, it can avoid that the angle is too small, resulting in too small elastic force for the second spring piece 142 to bend and deform toward the first spring piece 141, thereby increasing the elasticity of the conductive component; on the other hand, it can avoid that the angle is too large, resulting in uncertain bending and deformation direction of the second spring piece 142, thereby determining the bending and deformation direction of the second spring piece 142, and further improving the reliability of the conductive component 014.

[0072] See also Figure 5 In one embodiment, the first elastic sheet 141 has a first end 1411 connected to the second elastic sheet 142 and a second end 1412 away from the first end 1411. In the direction from the first end 1411 to the second end 1412, the first elastic sheet 141 has a length dimension L1 that satisfies: 5mm≤L1≤17.6mm, and / or, the third elastic sheet 143 has a third end 1431 connected to the second elastic sheet 142 and a fourth end 1432 away from the third end 1431, and in the direction from the third end 1431 to the fourth end 1432, the third elastic sheet 143 has a length dimension L2 that satisfies: 5mm≤L2≤17.6mm.

[0073] It can be understood that in this embodiment, 5mm≤L1≤17.6mm, or 5mm≤L2≤17.6mm, or 5mm≤L1≤17.6mm and 5mm≤L2≤17.6mm.

[0074] In addition, the length dimension L1 of the first spring piece 141 and the length dimension L2 of the third spring piece 143 include but are not limited to: 5mm, 5.2mm, 5.4mm, 6mm, 6.7mm, 7.2mm, 8mm, 9.9mm, 11mm, 12mm, 13mm, 14.5mm, 15mm, 16mm, 16.8mm, 17mm, and 17.6mm.

[0075] In this embodiment, through the above-mentioned arrangement, the first spring clip 141 and the third spring clip 143 can have an appropriate conductive contact length with the box body 012 and the box cover 011 to improve the reliability of the electrical connection between the conductive member 014 and the box body 012 and the box cover 011, and the material cost of the conductive member 014 can be increased due to the excessive length of the first spring clip 141 and the third spring clip 143.

[0076] See also Figure 4 In one embodiment, the first elastic piece 141 has a first end 1411 connected to the second elastic piece 142 and a second end 1412 away from the first end 1411. The direction from the first end 1411 to the second end 1412 is the length direction. In a direction perpendicular to both the length direction and the abutment direction, the first elastic piece 141 has a width dimension W1 that satisfies: 6mm≤W1≤8mm, and / or the third elastic piece 143 has a width dimension W2 that satisfies: 6mm≤W2≤8mm.

[0077] It can be understood that in this embodiment, 6mm≤W1≤8mm, or 6mm≤W2≤8mm, or 6mm≤W1≤8mm and 6mm≤W2≤8mm.

[0078] In addition, the width dimension W1 of the first elastic piece 141 and the width dimension W2 of the third elastic piece 143 can be but not limited to 6mm, 6.2mm, 6.45mm, 6.6mm, 6.8mm, 6.9mm, 6.94mm, 7mm, 7.2mm, 7.56mm, 7.6mm, 7.7mm, 7.85mm, and 8mm.

[0079] In this embodiment, through the above-mentioned arrangement, the first spring clip 141 and the third spring clip 143 can have a suitable conductive contact width with the box body 012 and the box cover 011 to improve the reliability of the electrical connection between the conductive member 014 and the box body 012 and the box cover 011, and the material cost of the conductive member 014 can be increased due to the excessive width of the first spring clip 141 and the third spring clip 143.

[0080] See also Figure 7 , Figure 7 It is a side view of another conductive member 014 provided by an embodiment of the present application. In one embodiment, the conductive member 014 further includes a first vertical section 146. The first vertical section 146 is located between the first elastic sheet 141 and the second elastic sheet 142. The two ends of the first vertical section 146 are respectively connected to the first elastic sheet 141 and the second elastic sheet 142. And the extension direction of the first vertical section 146 is parallel to the abutment direction. And / or, the conductive member 014 further includes a second vertical section 147. The second vertical section 147 is located between the second elastic sheet 142 and the third elastic sheet 143. The two ends of the second vertical section 147 are respectively connected to the second elastic sheet 142 and the third elastic sheet 143. And the extension direction of the second vertical section 147 is parallel to the abutment direction.

[0081] It can be understood that in this embodiment, the conductive member 014 further includes a first vertical segment 146 , or the conductive member 014 further includes a second vertical segment 147 , or the conductive member 014 further includes a first vertical segment 146 and a second vertical segment 147 .

[0082] In this embodiment, through the above-mentioned arrangement, on the one hand, when the required height dimension of the conductive member 014 is relatively large, the demand can be met by increasing the length of the first vertical section 146 or the second vertical section 147; on the other hand, the conductive member 014 can have greater rigidity in the abutting direction, thereby increasing the material selection of the conductive member 014, so that the conductive member 014 can have both suitable conductivity and suitable elasticity.

[0083] Furthermore, a rounded chamfer 148 is provided at the connection between the first vertical section 146 and the first elastic sheet 141 and at the connection between the first vertical section 146 and the second elastic sheet 142. The rounded chamfer 148 allows the first vertical section 146 to smoothly transition to the first elastic sheet 141 and the second elastic sheet 142, thereby reducing the stress at the connection between the first vertical section 146 and the first elastic sheet 141 and at the connection between the first vertical section 146 and the second elastic sheet 142.

[0084] Accordingly, a rounded chamfer 148 is provided at the connection between the second vertical section 147 and the second elastic sheet 142 and at the connection between the second vertical section 147 and the third elastic sheet 143. The rounded chamfer 148 allows the second vertical section 147 to smoothly transition to the second elastic sheet 142 and the third elastic sheet 143, thereby reducing the stress at the connection between the second vertical section 147 and the second elastic sheet 142 and at the connection between the second vertical section 147 and the third elastic sheet 143.

[0085] See also Figure 3In one embodiment, the battery box 001 further includes a fixing bolt 015. The conductive member includes a plurality of spring segments 144 connected in sequence. The spring segment 144 connected to one of the box cover 011 and the box body 012 is the first spring segment 141. The spring segment 144 away from the first spring segment 141 abuts against the other of the box cover 011 and the box body 012. A through hole 149 is provided on the first spring segment 141. The end of the screw of the fixing bolt 015 passes through the through hole 149 and is connected to the one of the box cover 011 and the box body 012 connected to the first spring segment 141.

[0086] Specifically, the first elastic piece 141 is connected to the box body 012 , and a threaded hole 121 is provided on the box body 012 . The end of the screw rod of the fixing bolt 015 passes through the through hole 149 and is threadedly connected to the threaded hole 121 .

[0087] In this embodiment, through the above arrangement, the installation structure of the conductive member 014 is simple and easy to implement, thereby controlling the production cost of the battery box 001.

[0088] See also Figure 7 In one embodiment, the remaining spring segments 144 except the first spring segment 141 constitute the main body. The first spring segment 141 has a first end 1411 connected to the main body and a second end 1412 away from the first end 1411. The through hole 149 is arranged away from the first end 1411. From the first end 1411 to the second end 1412, the minimum spacing between the first end 1411 and the main body is L3, which satisfies: 7.7mm≤L3≤10mm.

[0089] It can be understood that the spacing L3 can be, but is not limited to, 7.7 mm, 7.89 mm, 8 mm, 8.23 ​​mm, 8.4 mm, 8.6 mm, 8.7 mm, 9 mm, 9.2 mm, 9.5 mm, 9.7 mm, or 10 mm.

[0090] In this embodiment, through the above-mentioned limitation, it can be ensured that when the conductive member 014 is fastened with bolts, there is sufficient tool operation space, thereby reducing the difficulty of bolt fastening.

[0091] See also Figure 8 , Figure 8 1 is a schematic diagram of the position of the conductive member 014 in the original state provided by the embodiment of the present application. In one embodiment, when the conductive member 014 is in the natural state, the size of the conductive member 014 in the abutting direction is H0. When the conductive member 014 is in the elastic compression state, the size of the conductive member 014 is H2, satisfying: 0.7H0≤H2≤0.8H0.

[0092] It can be understood that the dimensional relationship of the conductive member 014 before and after compression can be, but is not limited to, 0.7H0, 0.71H0, 0.72H0, 0.735H0, 0.75H0, 0.761H0, 0.77H0, 0.78H0, 0.79H0, 0.792H0, 0.795H0, and 0.8H0.

[0093] In this embodiment, through the above-mentioned limitation, on the one hand, the deformation of the conductive part 014 can be prevented from being too small, so that there can be a suitable clamping force between the conductive part 014 and the box body 012 and the box cover 011, thereby improving the reliability of the electrical connection between the box body 012 and the box cover 011; on the other hand, after the conductive part 014 is compressed, no yield deformation will occur, so that the conductive part 014 has resilience performance and can be used repeatedly.

[0094] Accordingly, an embodiment of the present application provides a battery, which includes a battery module and the aforementioned battery box 001 , and the battery module is disposed in the installation cavity 013 .

[0095] It can be understood that the battery module includes a plurality of battery cells connected in series or in parallel.

[0096] In this embodiment, by using the aforementioned battery box 001, the electrical connection between the box body 012 and the box cover 011 can be achieved through the conductive member 014, so that there is no need to configure bolts for locking. In this way, the battery production line does not need to be configured with a bolt locking station, thereby improving the battery production efficiency and reducing the battery production cost.

[0097] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A battery box, characterized in that: include: Box; A box cover, which is covered on the box body to define a mounting cavity; The conductive member is elastic and is located in the installation cavity. One of the box cover and the box body is connected to the conductive member, and the other abuts against the conductive member, and the conductive member is in an elastically compressed state.

2. The battery box according to claim 1, characterized in that: Along the abutting direction, the conductive member includes a plurality of spring segments connected in sequence, and two adjacent spring segments are arranged at an angle; Wherein, one of the box cover and the box body is connected to the spring segment located at one end of the conductive member, and the other is abutted against the spring segment located at the other end of the conductive member.

3. The battery box according to claim 2, characterized in that: The conductive member includes three spring segments, which are a first spring segment, a second spring segment and a third spring segment connected in sequence; wherein one of the box cover and the box body is connected to the first spring segment, and the other is in contact with the third spring segment.

4. The battery box according to claim 3, characterized in that: The conductive member further includes an anti-scratch sheet, which is arranged opposite to the second elastic sheet and connected to an end of the third elastic sheet away from the second elastic sheet.

5. The battery box according to claim 4, characterized in that: Along a direction perpendicular to the third elastic sheet, the anti-scratch sheet has a height dimension H1 that satisfies: 2mm≤H1≤5mm.

6. The battery box according to any one of claims 3 to 5, characterized in that: When the conductive member is in a natural state, the first elastic sheet is perpendicular to the abutment direction, and an angle β is formed between the third elastic sheet and the abutment direction, satisfying: 0<β<90°, and the angle β is located on a side of the third elastic sheet away from the first elastic sheet.

7. The battery box according to any one of claims 3 to 5, characterized in that: When the conductive element is in a natural state, the angle between the second elastic piece and the first elastic piece is α, which satisfies: 30°≤α<90°.

8. The battery box according to any one of claims 3 to 5, characterized in that: The first elastic sheet has a first end connected to the second elastic sheet and a second end away from the first end. In a direction from the first end to the second end, the first elastic sheet has a length dimension L1 that satisfies: 5mm≤L1≤17.6mm, and / or, The third elastic piece has a third end connected to the second elastic piece and a fourth end away from the third end. In a direction from the third end to the fourth end, the third elastic piece has a length dimension L2 that satisfies: 5mm≤L2≤17.6mm.

9. The battery box according to any one of claims 3 to 5, characterized in that: The first spring piece has a first end connected to the second spring piece and a second end away from the first end. The direction from the first end to the second end is the length direction. In a direction perpendicular to both the length direction and the abutment direction, the first spring piece has a width dimension W1, satisfying: 6mm≤W1≤8mm, and / or the third spring piece has a width dimension W2, satisfying: 6mm≤W2≤8mm.

10. The battery box according to any one of claims 3 to 5, characterized in that: The conductive member further includes a first vertical segment, the first vertical segment is located between the first spring sheet and the second spring sheet, two ends of the first vertical segment are respectively connected to the first spring sheet and the second spring sheet, and an extension direction of the first vertical segment is parallel to the abutment direction, and / or the conductive member further includes a second vertical segment, the second vertical segment is located between the second spring sheet and the third spring sheet, two ends of the second vertical segment are respectively connected to the second spring sheet and the third spring sheet, and an extension direction of the second vertical segment is parallel to the abutment direction.

11. The battery box according to any one of claims 1 to 5, characterized in that: The battery box further includes a fixing bolt, the conductive member includes a plurality of spring segments connected in sequence, the spring segment connected to one of the box cover and the box body is a first spring segment, and the spring segment away from the first spring segment abuts against the other of the box cover and the box body; The first elastic sheet is provided with a through hole, and the end of the screw rod of the fixing bolt passes through the through hole and is connected to one of the box cover and the box body connected to the first elastic sheet.

12. The battery box according to claim 11, characterized in that: The remaining spring fragments except the first spring fragment constitute a main body, the first spring fragment has a first end connected to the main body and a second end away from the first end, the through hole is arranged away from the first end, and the minimum distance between the first end and the main body from the first end to the second end is L3, satisfying: 7.7mm≤L3≤10mm.

13. The battery box according to any one of claims 1 to 5, characterized in that: When the conductive member is in a natural state, in the abutting direction, the size of the conductive member is H0, and when the conductive member is in the elastic compression state, the size of the conductive member is H2, satisfying: 0.7H0≤H2≤0.8H0.

14. A battery, characterized in that: include: The battery box according to any one of claims 1 to 13: The battery module is arranged in the installation cavity.

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