Battery box and battery
The use of an elastic conductor element between the battery housing and cover addresses the inefficiencies of screw fastening, enhancing production efficiency and reducing costs while maintaining electrical connectivity and shielding performance.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- EVE ENERGY CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-21
AI Technical Summary
Current battery production efficiency is reduced due to the need for screw fastening to establish an electrical connection between the battery casing and its cover, increasing production costs and requiring additional stations in the production line.
An elastic conductor element is arranged between the housing and housing cover, ensuring a reliable electrical connection through elasticity without the need for screws, simplifying assembly and reducing material requirements.
This solution enhances production efficiency and lowers costs by eliminating the need for screw fastening stations, while maintaining a stable electrical connection and improving electromagnetic shielding performance.
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Abstract
Description
[0001] The present application claims priority over the Chinese patent application filed with the Chinese Patent Office on May 29, 2024, with application number 202421202596.9, the entire contents of which are incorporated into the present application by reference. Technical field
[0002] The present application relates to the technical field of battery technology and relates in particular to a battery box and a battery. State of the art
[0003] A battery is an electrical product that generates electromagnetic radiation during operation and can simultaneously be affected by external electromagnetic radiation. To reduce both the electromagnetic interference emitted by the battery and the electromagnetic interference acting upon it, the electromagnetic shielding performance of the battery casing must be improved. Currently, this shielding performance is primarily improved by electrically connecting the battery casing and its cover, so that together they form an electromagnetically shielding body with sufficient shielding performance.To establish the electrical connection between the housing and the housing cover, conductive surfaces are exposed at the corresponding electrical connection positions of the housing and housing cover, and the housing cover is fastened to the housing by means of screws, so that the conductive surface of the housing cover is brought into conductive and pressure contact with the conductive surface of the housing, thereby establishing a conductive connection between the housing cover and the housing. Disclosure of registration
[0004] This type of electrical connection requires the housing cover and housing to be fastened with screws to create a conductive and pressurized connection between the conductive surface of the housing cover and the conductive surface of the housing. Therefore, an additional screw fastening station must be provided in the battery production line, resulting in reduced production efficiency and higher battery production costs.
[0005] The present application provides a battery box and a battery with which the production efficiency of the battery can be improved.
[0006] In a first aspect, the present application provides a battery box comprising a housing, a housing cover and a conductor element; the housing cover is arranged on the housing to define an installation space; the conductor element is elastically arranged in the installation space, with one of the housing cover and the housing being connected to the conductor element, the other being in contact with the conductor element, and the conductor element being in an elastically compressed state.
[0007] In a second aspect, the present application provides a battery comprising a battery module and the aforementioned battery box, wherein the battery module is arranged in the installation space. Advantageous technical effects
[0008] In the present application, the arrangement of an elastic conductor element as a conductive component between the housing and the housing cover, and the fact that the conductor element is in an elastically compressed state, ensures that the conductor element remains in permanent contact with the housing and the housing cover due to its own elasticity, thus guaranteeing a reliable electrical connection between the housing and the housing cover. Therefore, it is not necessary to provide screws for fastening. In this way, no screw fastening station needs to be set up in the battery production line, thereby improving battery production efficiency and reducing battery production costs. Brief description of the drawings Fig. Figure 1 is a schematic structural view of the battery box according to some embodiments of the present application; Fig. 2 is a partial top view of the battery box according to some embodiments of the present application; Fig. Figure 3 is a partially schematic sectional view along line AA in Fig. 2; Fig. Figure 4 is a schematic structural view of the conductor element according to some embodiments of the present application; Fig. Figure 5 is another schematic structural view of the conductor element according to some embodiments of the present application; Fig. Figure 6 is a side view of the conductor element according to some embodiments of the present application; Fig. 7 is another side view of the conductor element according to some embodiments of the present application; Fig. Figure 8 is a schematic view of the position of the conductor element in the original state according to some embodiments of the present application. Reference symbol list 001 Battery box; 011 Housing cover; 012 Housing; 121 Threaded hole; 013 Installation space; 014 Conductor element; 141 first suspension; 1411 first end; 1412 second end; 142 second suspension; 143 third suspension; 1431 third end; 1432 fourth end; 144 Suspension section; 145 Scratch protection plate; 146 first vertical section; 147 second vertical section; 149 Through hole; 015 Mounting screw. Designs
[0009] It will be directed to the Fig. 1, Fig. 2 to Fig. 3. Referenced. Fig. Figure 1 is a schematic structural view of the battery box 001 according to some embodiments of the present application, Fig. Figure 2 is a partial top view of battery box 001 according to some embodiments of the present application, and Fig. Figure 3 is a partially schematic sectional view along line AA in Fig. 2. The battery box 001 provided in some embodiments of the present application comprises a housing 012, a housing cover 011, and a conductor element 014. The housing cover 011 is arranged on the housing 012 to define an installation space 013. The conductor element 014 is elastic and arranged in the installation space 013. One part of the housing cover 011 and the housing 012 is connected to the conductor element 014, while the other part rests against the conductor element 014, which is in an elastically compressed state.
[0010] It is understandable that, in order to make the battery box 001 an electromagnetically shielding body with electromagnetic shielding performance, the conductor element 014 is electrically connected to the housing 012 and the housing cover 011. Accordingly, conductive surfaces are provided at the contact points between the housing 012, the housing cover 011 and the conductor element 014.
[0011] In one embodiment, the housing cover 011 can rest against the conductor element 014, and the housing 012 can be connected to the conductor element 014. In this way, the conductor element 014 can first be secured inside the housing 012, and as the housing cover 011 is placed onto the housing 012, the housing cover 011 gradually rests against the conductor element 014. When the placement of the housing cover 011 is complete, the conductor element 014 is in an elastically compressed state.
[0012] In another embodiment, the housing cover 011 can be connected to the conductor element 014, and the housing 012 can rest against the conductor element 014. The conductor element 014 can first be attached to the side wall of the housing cover 011 facing the housing 012. When the housing cover 011 is placed onto the housing 012, the conductor element 014 penetrates the housing 012 and rests against it. Once the housing cover 011 is in place, the conductor element 014 is in an elastically compressed state.
[0013] After the housing cover 011 has been fitted, the housing cover 011 compresses the conductor element 014 by its own weight, and the conductor element 014 lies tightly against the inside of the housing cover 011 due to its restoring force, thereby establishing the electrical connection between housing 012, conductor element 014 and housing cover 011.
[0014] For example, conductor element 014 is elastic, meaning it exhibits compressibility and resilience. The structure of conductor element 014 includes, but is not limited to, a spiral structure, a C-shaped structure, an S-shaped structure, a Z-shaped structure, or a bellows structure.
[0015] Furthermore, the material of conductor element 014 includes, but is not limited to, copper, iron, aluminum, or copper alloys. Optionally, the material of conductor element 014 is C17200 beryllium copper.
[0016] In this embodiment, the elastic conductor element 014 is inserted as a conductive component between the housing 012 and the housing cover 011 and placed in an elastically compressed state. Due to its inherent elasticity, the conductor element 014 is pressed against the housing 012 and held in place by the housing cover 011. This ensures a reliable electrical connection between the housing 012 and the housing cover 011 without the need for a screw connection between the housing 012 and the housing cover 011. Therefore, the battery production line does not require a station for screwing the housing 012 and housing cover 011 together, thus increasing production efficiency and reducing production costs.
[0017] Furthermore, since no screw connection between housing 012 and housing cover 011 is required, the housing cover 011 can be attached to housing 012 by applying adhesive to the contact surface between the two housings, thus joining them into a single unit. This method of attaching the housing cover 011 is simple and convenient and can increase battery production efficiency. Additionally, no screw holes are required in housing 012 and housing cover 011. This increases the strength of both housing 012 and housing cover 011 without having to consider the placement of holes or potential interference from collisions with other components / structures, thereby simplifying the design.
[0018] See Fig. 4; Fig. Figure 4 shows a schematic structural view of the conductor element 014 according to some embodiments of the present application. In some embodiments, the conductor element 014 comprises several successively connected spring sections 144 along the direction of application. Two adjacent spring sections 144 are angled relative to each other, in particular arranged at an acute angle. One of the housing cover 011 and housing 012 is connected to the spring section 144 arranged at one end of the conductor element 014, while the other abuts the spring section 144 arranged at the other end of the conductor element 014.
[0019] It is understood that the conductor element 014 can comprise two, three, four, or five successively connected suspension sections 144. If the conductor element 014 comprises two successively connected suspension sections 144, it can have a V-shaped or a U-shaped structure; if the conductor element 014 comprises three successively connected suspension sections 144, it can have a Z-shaped or an S-shaped structure.
[0020] Several spring sections 144 can be formed by repeatedly bending a metal sheet, or several spring sections 144 can be welded together in succession to form the conductor element 014.
[0021] In this embodiment, the conductor element 014 comprises several successively connected suspension sections 144, giving the conductor element 014 a simple structure and making it easy to manufacture, thus increasing the manufacturing efficiency of the battery box 001 and controlling the manufacturing costs of the battery box 001.
[0022] See Fig. 5; Fig. Figure 5 shows a schematic structural view of another conductor element 014 according to some embodiments of the present application. In some embodiments, the conductor element 014 comprises three spring sections 144. The three spring sections 144 are a first spring 141, a second spring 142, and a third spring 143, each connected sequentially. One of the housing cover 011 and housing 012 is connected to the first spring 141, while the other rests against the third spring 143.
[0023] In this embodiment, the conductor element 014 comprises three spring sections 144. This gives the conductor element 014, on the one hand, sufficient elasticity to press the housing cover against the housing 012, thereby improving the stability of the electrical connection between the conductor element 014 and the housing cover and the housing 012; on the other hand, the structure of the conductor element 014 is easily formable and exhibits high forming efficiency.
[0024] See Fig. 4; in some embodiments, the conductor element 014 further comprises a scratch protection plate 145. The scratch protection plate 145 is arranged opposite the second spring 142 and is connected to the end of the third spring 143 facing away from the second spring 142.
[0025] Specifically, a rounded chamfer is provided at the connection point between the third spring 143 and the scratch protection plate 145. The rounded chamfer allows for a smooth transition from the third spring 143 to the scratch protection plate 145, thereby reducing the stress at the connection point between the third spring 143 and the scratch protection plate 145.
[0026] In this embodiment, the arrangement of the scratch protection plate 145 at the end of the third spring 143 facing away from the second spring 142 prevents the third spring 143 from having frictional contact with the adjacent component. This prevents damage to the surface coating of the housing 012 and housing cover 011 that comes into contact with the third spring 143, thereby improving the reliability of the battery.
[0027] See Fig. 6; Fig. Figure 6 shows a side view of the conductor element 014 according to some embodiments of the present application. In some embodiments, the scratch protection plate 145 has a height dimension H1 in a direction perpendicular to the third spring 143 which satisfies the following condition: 2 mm ≤ H1 ≤ 5 mm.
[0028] It is understood that H1 can be 2 mm, 2.5 mm, 2.9 mm, 3 mm, 3.2 mm, 3.5 mm, 3.72 mm, 4 mm, 4.2 mm, 4.4 mm, 4.6 mm, 4.9 mm or 5 mm, without being limited thereto.
[0029] Specifically: 3 mm ≤ H1 ≤ 4 mm.
[0030] In this embodiment, by defining the height dimension H1 of the scratch protection plate 145, it is possible on the one hand to avoid an insufficient height of the scratch protection plate 145 leading to inadequate scratch protection, and on the other hand to avoid an excessive height of the scratch protection plate leading to high material costs of the conductor element 014, thereby controlling the manufacturing costs of the battery box 001.
[0031] See Fig. 5; in some embodiments, when the conductor element 014 is in its natural state, the first spring 141 is perpendicular to the application direction, and there is an angle β between the third spring 143 and the application direction which satisfies the following condition: 0 < β < 90°, wherein the angle β is on the side of the third spring 143 facing away from the first spring 141.
[0032] It is understood that the angle β can be 5°, 10°, 15°, 17.5°, 19.5°, 20°, 25°, 30°, 35°, 36°, 37°, 40°, 45°, 48°, 50°, 55°, 58.2°, 60°, 66°, 75°, 85° or 89°, without being limited to these.
[0033] Specifically: 75° ≤ β ≤ 85°.
[0034] In this embodiment, by setting the angle β, the connection area between the third spring 143 and the second spring 142 can be in a bending deformation state when the third spring 143 is in contact with the corresponding component. This allows, on the one hand, the contact force between the third spring 143 and the contacting component to be increased, thereby improving the stability of the electrical connection between the third spring 143 and the contacting component; on the other hand, the elasticity of the conductor element 014 can be increased so that, despite a smaller number of spring sections 144, it has sufficient elasticity to meet the requirements for the electrical connection between the housing 012 and the housing cover 011.
[0035] See Fig. 5; in some embodiments, when the conductor element 014 is in its natural state, the angle α between the second suspension 142 and the first suspension 141 is 30° ≤ α < 90°.
[0036] It is understood that the angle α can be 5°, 10°, 15°, 17.5°, 19.5°, 20°, 25°, 30°, 35°, 36°, 37°, 40°, 45°, 48°, 50°, 55°, 58.2°, 60°, 66°, 75°, 85° or 89°, without being limited to these.
[0037] Specifically: 40° ≤ α ≤ 50°.
[0038] In this embodiment, by setting the angle α, it can be ensured that the first spring 141 and the second spring 142 form a suitable angle. On the one hand, this prevents the restoring force of the second spring 142 from being too low when bending relative to the first spring 141 if the angle is too small, which could increase the elasticity of the conductor element; on the other hand, it prevents the direction of the bending deformation of the second spring 142 from being undefined if the angle is too large, thus defining the direction of the bending deformation of the second spring 142 and thereby improving the reliability of the conductor element 014.
[0039] See Fig. 5; in some embodiments, the first spring 141 has a first end 1411 which is connected to the second spring 142, and a second end 1412 spaced apart from the first end 1411. In the direction from the first end 1411 to the second end 1412, the first spring 141 has a length dimension L1 which satisfies the following condition: 5 mm ≤ L1 ≤ 17.6 mm.
[0040] It is understood that the length dimension L1 of the first spring may be 141 5 mm, 5.2 mm, 5.4 mm, 6 mm, 6.7 mm, 7.2 mm, 8 mm, 9.9 mm, 11 mm, 12 mm, 13 mm, 14.5 mm, 15 mm, 16 mm, 16.8 mm, 17 mm or 17.6 mm, without being limited thereto.
[0041] In this embodiment, by defining the length dimension L1 of the first spring 141, it can be ensured that the first spring 141 has a suitable conductive contact length with the housing 012 and the housing cover 011, thereby improving the reliability of the electrical connection between the conductor element 014 and the housing 012 and the housing cover 011. At the same time, it can be avoided that an excessive length of the first spring 141 would lead to increased material consumption and thus higher material costs for the conductor element 014.
[0042] See Fig. 5; in some embodiments, the third spring 143 has a third end 1431 which is connected to the second spring 142, and a fourth end 1432 spaced apart from the third end 1431. In the direction from the third end 1431 to the fourth end 1432, the third spring 143 has a length dimension L2 which satisfies the following condition: 5 mm ≤ L2 ≤ 17.6 mm.
[0043] It is understood that in some further embodiments both the length dimension L1 and the length dimension L2 can be specified. For example, in some embodiments: 5 mm ≤ L1 ≤ 17.6 mm and 5 mm ≤ L2 ≤ 17.6 mm.
[0044] It is further understood that the length dimension L2 of the third spring may be, but is not limited to, 5 mm, 5.2 mm, 5.4 mm, 6 mm, 6.7 mm, 7.2 mm, 8 mm, 9.9 mm, 11 mm, 12 mm, 13 mm, 14.5 mm, 15 mm, 16 mm, 16.8 mm, 17 mm or 17.6 mm.
[0045] In this embodiment, by defining the length dimension L2 of the third spring 143, it can be ensured that the third spring 143 has a suitable conductive contact length with the housing 012 and the housing cover 011, thereby improving the reliability of the electrical connection between the conductor element 014 and the housing 012 and the housing cover 011. At the same time, it can be avoided that an excessive length of the third spring 143 would lead to increased material consumption and thus higher material costs for the conductor element 014.
[0046] See Fig. 4; In some embodiments, the first spring 141 has a first end 1411 connected to the second spring 142, and a second end 1412 spaced apart from the first end 1411. The direction from the first end 1411 to the second end 1412 is the longitudinal direction. In a direction perpendicular to both the longitudinal direction and the application direction, the first spring 141 has a width dimension W1 that satisfies the following condition: 6 mm ≤ W1 ≤ 8 mm.
[0047] It is understood that the width dimension W1 of the first spring 141 may be, but is not limited to, 6 mm, 6.2 mm, 6.45 mm, 6.6 mm, 6.8 mm, 6.9 mm, 6.94 mm, 7 mm, 7.2 mm, 7.56 mm, 7.6 mm, 7.7 mm, 7.85 mm or 8 mm.
[0048] In this embodiment, by defining the width dimension W1 of the first spring 141, it can be ensured that the first spring 141 has a suitable conductive contact width with the housing 012 and the housing cover 011, thereby improving the reliability of the electrical connection between the conductor element 014 and the housing 012 and the housing cover 011. At the same time, it can be avoided that an excessive width of the first spring 141 would lead to increased material costs for the conductor element 014.
[0049] See Fig. 4; In some embodiments, the third spring 143 has a third end 1431 connected to the second spring 142, and a fourth end 1432 spaced apart from the third end 1431. The direction from the third end 1431 to the fourth end 1432 is the longitudinal direction. In a direction perpendicular to both the longitudinal direction and the application direction, the third spring 143 has a width dimension W2 that satisfies the following condition: 6 mm ≤ W2 ≤ 8 mm.
[0050] It is understood that in some embodiments both the width dimension W1 and the width dimension W2 can be defined simultaneously. For example, in some embodiments: 6 mm ≤ W1 ≤ 8 mm and 6 mm ≤ W2 ≤ 8 mm.
[0051] Furthermore, the width dimension W2 of the third spring 143 can be 6 mm, 6.2 mm, 6.45 mm, 6.6 mm, 6.8 mm, 6.9 mm, 6.94 mm, 7 mm, 7.2 mm, 7.56 mm, 7.6 mm, 7.7 mm, 7.85 mm or 8 mm, without being limited thereto.
[0052] In this embodiment, by defining the width dimension W2 of the third spring 143, it can be ensured that the third spring 143 has a suitable conductive contact width with the housing 012 and the housing cover 011, thereby improving the reliability of the electrical connection between the conductor element 014 and the housing 012 and the housing cover 011. At the same time, it can be avoided that an excessive width of the third spring 143 would lead to increased material costs for the conductor element 014.
[0053] See Fig. 7; Fig. Figure 7 shows a side view of another conductor element 014 according to some embodiments of the present application. In some embodiments, the conductor element 014 further comprises a first vertical section 146. The first vertical section 146 is arranged between the first spring 141 and the second spring 142. The two ends of the first vertical section 146 are each connected to the first spring 141 and the second spring 142, respectively. The extension direction of the first vertical section 146 is parallel to the application direction.
[0054] In this embodiment, the arrangement of the first vertical section 146 allows, on the one hand, a larger height dimension of the conductor element 014 to be achieved by adding the first vertical section 146; on the other hand, the conductor element 014 can have a higher stiffness in the application direction, which expands the selection range of materials for the conductor element 014, so that the conductor element 014 has both suitable conductivity and suitable elasticity.
[0055] See Fig. 7; in some embodiments, the conductor element 014 further comprises a second vertical section 147. The second vertical section 147 is arranged between the second spring 142 and the third spring 143. The two ends of the second vertical section 147 are each connected to the second spring 142 and the third spring 143, respectively. The extension direction of the second vertical section 147 is parallel to the application direction.
[0056] It is understood that the conductor element 014 can encompass both the first vertical section 146 and the second vertical section 147 simultaneously.
[0057] In this embodiment, the second vertical section 147 allows, on the one hand, a larger height dimension of the conductor element 014 to be achieved by adding the second vertical section 147; on the other hand, the conductor element 014 can have a higher stiffness in the application direction, which expands the selection range of materials for the conductor element 014, so that the conductor element 014 has both suitable conductivity and suitable elasticity.
[0058] Specifically, rounded chamfers are provided at the connection point between the first vertical section 146 and the first spring 141, as well as at the connection point between the first vertical section 146 and the second spring 142. These rounded chamfers enable a smooth transition from the first vertical section 146 to the first spring 141 and to the second spring 142, thereby reducing the stress at the connection points between the first vertical section 146 and the first spring 141, as well as between the first vertical section 146 and the second spring 142.
[0059] Accordingly, rounded chamfers are provided at the connection point between the second vertical section 147 and the second spring 142, as well as at the connection point between the second vertical section 147 and the third spring 143. These rounded chamfers allow for a smooth transition from the second vertical section 147 to the second spring 142 and to the third spring 143, thereby reducing the stress at the connection points between the second vertical section 147 and the second spring 142, as well as between the second vertical section 147 and the third spring 143.
[0060] See Fig. 3; in some embodiments, the battery box 001 further comprises a fastening screw 015. The conductor element comprises several successively connected spring sections 144. The spring section 144 that is connected to one of the housing cover 011 and housing 012 is the first spring section 141. The spring section 144 opposite the first spring section 141 rests against the other of the housing cover 011 and housing 012. A through-hole 149 is provided on the first spring section 141. The screw end of the fastening screw 015 extends through the through-hole 149 and is connected to the respective through-hole of the housing cover 011 and housing 012 that is connected to the first spring section 141.
[0061] Specifically, the first spring 141 is connected to the housing 012, which has a threaded bore 121. The screw end of the fastening screw 015 passes through the through hole 149 and is screwed into the threaded bore 121.
[0062] In this embodiment, the above arrangement makes the assembly of the conductor element 014 structurally simple and easy to implement, thereby controlling the production costs of the battery box 001.
[0063] See Fig. 7; In some embodiments, the remaining part of the spring sections 144, apart from the first spring 141, forms the main body. The first spring 141 has a first end 1411, which is connected to the main body, and a second end 1412 spaced apart from the first end 1411. The through-hole 149 is spaced apart from the first end 1411. In the direction from the first end 1411 to the second end 1412, the minimum distance between the first end 1411 and the main body is L3, where: 7.7 mm ≤ L3 ≤ 10 mm.
[0064] It is understood that the distance L3 can be 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, without being limited to any of these.
[0065] In this embodiment, the above specification ensures that sufficient tool working space is available when fastening the conductor element 014 by means of a screw, thereby reducing the difficulty of tightening the screw.
[0066] See Fig. 8; Fig. Figure 8 shows a positional representation of the conductor element 014 in its original state according to some embodiments of the present application. In some embodiments, the conductor element 014, when in its natural state, has a dimension H0 in the application direction. When the conductor element 014 is in an elastically compressed state, its dimension is H2, where: 0.7 H0 ≤ H2 ≤ 0.8 H0.
[0067] It is understood that the ratio of the dimensions of the conductor element 014 before and after compression can be 0.7 H0, 0.71 H0, 0.72 H0, 0.735 H0, 0.75 H0, 0.761 H0, 0.77 H0, 0.78 H0, 0.79 H0, 0.792 H0, 0.795 H0 or 0.8 H0, without being limited thereto.
[0068] In this embodiment, by defining the dimensional ratio of the conductor element 014 before and after compression, it is possible, on the one hand, to prevent the deformation of the conductor element 014 from being too small, thereby achieving a suitable contact force between the conductor element 014 and the housing 012 and the housing cover 011, and improving the reliability of the electrical connection between the housing 012 and the housing cover 011; on the other hand, it can be ensured that the conductor element 014 does not undergo any plastic deformation after compression, so that it remains resilient and can be reused.
[0069] Accordingly, in some embodiments of the present application a battery is provided which comprises a battery module and the battery box 001 according to some embodiments of the present application, wherein the battery module is arranged in the installation space 013.
[0070] It is understood that the battery module comprises several battery cells connected in series or parallel.
[0071] In this embodiment, by using the battery box 001 according to some embodiments of the present application, an electrical connection between the housing 012 and the housing cover 011 can be established via the conductor element 014, so that no screw connection is required for fastening. This eliminates the need for a screw connection station in the battery production line, thereby increasing battery production efficiency and reducing production costs. QUOTES INCLUDED IN THE DESCRIPTION
[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature
[0000] CN 202421202596.9
[0001]
Claims
[1] Battery box (001), comprising: a housing (012); a housing cover (011) which is arranged on the housing (012) to limit an installation space (013); a conductor element (014), wherein the conductor element (014) is elastic and is arranged in the installation space (013), one of the housing cover (011) and the housing (012) is connected to the conductor element (014), the other rests against the conductor element (014), and the conductor element (014) is in an elastically compressed state. [2] Battery box (001) according to claim 1, wherein the conductor element (014) comprises several successively connected suspension sections (144) in an application direction, wherein two adjacent suspension sections (144) are arranged at an angle to each other; wherein one is connected to the housing cover (011) and the housing (012) with the suspension section (144) arranged at one end of the conductor element (014), and the other rests against the suspension section (144) arranged at the other end of the conductor element (014). [3] Battery box (001) according to claim 2, wherein the conductor element (014) comprises three suspension sections (144), wherein the three suspension sections (144) are a first suspension (141), a second suspension (142) and a third suspension (143) which are connected successively to each other; wherein one is connected to the first suspension (141) by the housing cover (011) and the housing (012), and the other rests against the third suspension (143). [4] Battery box (001) according to claim 3, wherein the conductor element (014) further comprises a scratch protection plate (145), wherein the scratch protection plate (145) is arranged opposite the second suspension (142) and is connected to an end of the third suspension (143) facing away from the second suspension (142). [5] Battery box (001) according to claim 4, wherein the scratch protection plate (145) has a height dimension H1 in a direction perpendicular to the third spring (143) which satisfies the following condition: 2 mm ≤ H1 ≤ 5 mm. [6] Battery box (001) according to one of claims 3 to 5, wherein, when the conductor element (014) is in a natural state, the first spring (141) is perpendicular to the application direction and there is an angle β between the third spring (143) and the application direction which satisfies the following condition: 0 < β < 90°, wherein the angle β is on one side of the third spring (143) facing away from the first spring (141). [7] Battery box (001) according to one of claims 3 to 6, wherein, when the conductor element (014) is in a natural state, the angle between the second spring (142) and the first spring (141) is α and satisfies the following condition: 30° ≤ α < 90°. [8] Battery box (001) according to any one of claims 3 to 7, wherein the first suspension (141) has a first end (1411) connected to the second suspension (142) and a second end (1412) spaced apart from the first end (1411), wherein the first suspension (141) has a length dimension L1 in the direction from the first end (1411) to the second end (1412) that satisfies the following condition: 5 mm ≤ L1 ≤ 17.6 mm, and / or, wherein the third suspension (143) has a third end (1431) connected to the second suspension (142) and a fourth end (1432) spaced apart from the third end (1431), wherein the third suspension (143) extends in the direction from the third end (1431) to the fourth end (1432) has a length dimension L2 which satisfies the following condition: 5 mm ≤ L2 ≤ 17.6 mm. [9] Battery box (001) according to any one of claims 3 to 8, wherein the first spring (141) has a first end (1411) connected to the second spring (142) and a second end (1412) spaced apart from the first end (1411), wherein the direction from the first end (1411) to the second end (1412) is a longitudinal direction, and wherein the first spring (141) has a width dimension W1 in a direction perpendicular to both the longitudinal direction and the application direction, which satisfies the following condition: 6 mm ≤ W1 ≤ 8 mm, and / or, wherein the third spring (143) has a width dimension W2, which satisfies the following condition: 6 mm ≤ W2 ≤ 8 mm. [10] Battery box (001) according to any one of claims 3 to 9, wherein the conductor element (014) further comprises a first vertical section (146), wherein the first vertical section (146) is arranged between the first spring (141) and the second spring (142), wherein the two ends of the first vertical section (146) are each connected to the first spring (141) and the second spring (142) and an extension direction of the first vertical section (146) runs parallel to the application direction, and / or, wherein the conductor element (014) further comprises a second vertical section (147), wherein the second vertical section (147) is arranged between the second spring (142) and the third spring (143), wherein the two ends of the second vertical section (147) are each connected to the second spring (142) and the third spring (143) and an extension direction of the second vertical section (147) runs parallel to the direction of berthing. [11] Battery box (001) according to one of claims 1 to 10, wherein the battery box (001) further comprises a fastening screw (015), wherein the conductor element (014) comprises several successively connected suspension sections (144), wherein the suspension section (144) which is connected to one of the housing cover (011) and the housing (012) is the first suspension (141), and the suspension section (144) which is spaced apart from the first suspension (141) bears against the housing cover (011) and the housing (012) with the other; wherein a through hole (149) is provided in the first spring (141), and wherein one end of the fastening screw (015) is connected after passing through the through hole (149) to the end of the housing cover (011) and the housing (012) which is connected to the first spring (141). [12] Battery box (001) according to claim 11, wherein the remaining suspension sections (144) except for the first suspension (141) form a main body, wherein the first suspension (141) has a first end (1411) connected to the main body and a second end (1412) spaced apart from the first end (1411), wherein the through-hole (149) is arranged facing away from the first end (1411), and wherein a minimum distance L3 is formed between the first end (1411) and the main body in the direction from the first end (1411) to the second end (1412), which satisfies the following condition: 7.7 mm ≤ L3 ≤ 10 mm. [13] Battery box (001) according to any one of claims 1 to 12, wherein, when the conductor element (014) is in a natural state, the conductor element (014) has a dimension H0 in the application direction, and when the conductor element (014) is in the elastically compressed state, the conductor element (014) has a dimension H2 in the application direction which satisfies the following condition: 0.7H0 ≤ H2 ≤ 0.8H0. [14] Battery, comprising: the battery box (001) according to one of claims 1 to 13; a battery module that is located in the installation space (013).