Battery module and battery pack

Abstract

The utility model provides a battery module and a battery pack, and the battery module comprises a base body which is provided with a base body surface; the wire harness positioning unit comprises an elastic claw assembly and an anti-falling bulge; one end of the elastic claw assembly is connected with the base body, and a second gap is formed between the elastic claw assembly and the surface of the base body; the anti-disengaging protrusion is arranged in the second gap, connected with the elastic claw assembly and spaced from the surface of the base body. The moving direction of the connecting line entering the second gap from the outside is defined as a first moving direction, and at least two anti-disengaging protrusions are arranged in the first moving direction. According to the battery module and the battery pack provided by the invention, the at least two limiting bulges are arranged in the second gap formed between the elastic claw assembly and the surface of the base body, so that the connecting wire can be prevented from being separated from the wire harness positioning unit, and adverse effects on assembly or normal use of the battery module caused by separation of the connecting wire are prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power batteries, and in particular to a battery module and a battery pack. BACKGROUND

[0002] The existing battery pack often selects to use lithium ion batteries, which have the advantages of high energy density, long service life, green environmental protection and high power, and have been widely used in new energy vehicles and various energy storage application scenarios. With the development of lithium ion battery technology, the demand for replacing battery packs of new energy vehicles and maintenance and replacement of energy storage is increasing, and the battery pack and the modules therein tend to be modular. In order to improve the convenience of replacing the modules in the battery pack, the low-voltage sampling module uses a busbar sampling harness assembly.

[0003] However, if the harness composed of connecting lines is placed freely, it will at least interfere with the tooling in the production of the battery pack, causing assembly inconvenience; or it will affect the welding of low-voltage sampling, directly causing the low-voltage sampling module to be abnormal, affecting the normal work of the module. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the present application is to provide a battery module and a battery pack to at least partially solve the problem of adverse effects on the assembly and normal work of the battery pack due to the free placement of the harness.

[0005] To achieve the above purpose, the first aspect of the present application provides a battery module, comprising: a base body having a base body surface; a harness positioning unit comprising an elastic claw assembly and an anti-falling protrusion; one end of the elastic claw assembly is connected with the base body, and a second gap is formed between the elastic claw assembly and the base body surface; the anti-falling protrusion is arranged in the second gap, and the anti-falling protrusion is connected with the elastic claw assembly and spaced apart from the base body surface; the moving direction of the connecting line entering the second gap from the outside is defined as a first moving direction, and along the first moving direction, the anti-falling protrusion is provided with at least two.

[0006] Optionally, along the first moving direction, the gap distance between the at least two anti-falling protrusions and the base body surface decreases in turn.

[0007] Optionally, the surface of the anti-falling protrusion located upstream of the first moving direction is configured as an inclined surface facing the base body surface.

[0008] Optionally, the surface of the anti-falling protrusion located downstream of the first moving direction is configured as a plane, and the plane is perpendicular to the moving direction of the connecting line in the second gap.

[0009] Optionally, a direction intersecting the base surface is defined as a second direction; the elastic claw assembly comprises a first elastic claw and a second elastic claw arranged at intervals along the second direction, the second elastic claw is located between the first elastic claw and the base surface, the connecting end of the first elastic claw is connected with the base, the free end of the first elastic claw is connected with the connecting end of the second elastic claw, and the first elastic claw and the second elastic claw form a first accommodating space for accommodating the connecting wire therebetween; a gap between the second elastic claw and the base surface is configured as the second gap, and the first accommodating space and the second gap are in communication.

[0010] Optionally, the extension direction of the second elastic claw is parallel to the extension direction of the first elastic claw; along the extension direction of the second elastic claw, the free end of the second elastic claw is arranged at intervals with the base to form a first gap between the free end of the second elastic claw and the base, and the first accommodating space and the second gap are in communication through the first gap.

[0011] Optionally, the size of the first gap along the extension direction of the second elastic claw is not greater than the outer diameter of the connecting wire.

[0012] Optionally, the second elastic claw is arranged vertically, and the first gap is located above the second elastic claw.

[0013] Optionally, a direction intersecting the base surface is defined as a second direction, and the size of the second gap along the second direction is not greater than the outer diameter of the connecting wire.

[0014] Optionally, the surface of the anti-extraction protrusion located downstream of the first moving direction is configured as an inclined surface towards the elastic claw assembly.

[0015] Based on the same inventive concept, the second aspect of the present application also provides a battery pack comprising the battery module as described in the first aspect.

[0016] From the above, it can be seen that the battery module and the battery pack provided by the application can set at least two limiting protrusions in the second gap formed between the elastic claw assembly and the surface of the base body. When the connecting line is pulled out of the wire harness positioning unit, the at least two limiting protrusions can block the movement of the connecting line for multiple times, can effectively weaken the external force driving the connecting line, and can prevent the connecting line from being pulled out of the wire harness positioning unit. Meanwhile, the gap distance between the at least two limiting protrusions and the surface of the base body decreases in sequence along the first movement direction, which can facilitate the installation of the connecting line into the wire harness positioning unit, reduce the assembly difficulty of the battery module, and effectively block the connecting line in the process of being pulled out of the wire harness positioning unit, further preventing the connecting line from being pulled out of the wire harness positioning unit. This is helpful to reliably limit the connecting line at the preset position during the transportation and installation of the battery module, and prevent the adverse effects on the assembly or normal use of the battery module caused by the pulling out of the connecting line. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present application or related art, the drawings needed to be used in the embodiments or related art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 Part of the schematic diagram of the battery module of the first structure of the embodiment of the present application;

[0019] Figure 2 Part of the front view schematic diagram of the battery module of the first structure of the embodiment of the present application;

[0020] Figure 3 is Figure 2 the cross-sectional schematic diagram of A-A section;

[0021] Figure 4 Part of the schematic diagram of the battery module of the second structure of the embodiment of the present application;

[0022] Figure 5 Part of the front view schematic diagram of the battery module of the second structure of the embodiment of the present application;

[0023] Figure 6 is Figure 5 the cross-sectional schematic diagram of B-B section;

[0024] Figure 7 is Figure 5 the cross-sectional schematic diagram of B-B section after the connecting line enters the second gap;

[0025] Figure 8 isFigure 5 Partial cross-sectional view of the part of the middle B-B section that is blocked by the anti-off bump multiple times after the connecting line enters the second gap;

[0026] Figure 9 For Figure 5 Partial cross-sectional view of the anti-off bump of another structure of the middle B-B section.

[0027] Explanation of the reference signs:

[0028] 100, bracket; 110, bracket surface;

[0029] 200, wire harness positioning unit; 210, elastic claw assembly; 211, first elastic claw; 212, second elastic claw; 220, anti-off bump; 230, first accommodating space; 240, first gap; 250, second gap;

[0030] 300, connecting line; 400, elastic claw;

[0031] 500, base body; 510, base body surface;

[0032] 600, wire harness. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with specific embodiments and with reference to the drawings.

[0034] It should be noted that: unless otherwise specified, the relative arrangement of the components, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.

[0035] At the same time, it should be understood that, in order to facilitate the description, the size of each part shown in the drawings is not drawn in accordance with the actual proportional relationship.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting of the application or its application or uses.

[0037] It should be noted that the technical terms or scientific terms used in the embodiments of the present application should be understood as the general meaning understood by those skilled in the art to which the embodiments of the present application belong, unless otherwise defined. The terms "first", "second", and similar terms used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. The terms "include", "contain" and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0038] As Figure 1 , Figure 1 A partial schematic view of a first battery module is shown. In some embodiments, the battery module includes a box body, a bracket 100 is mounted on the side wall of the box body, which can be used to mount the bar, the terminal or other devices. For example, the material of the bracket 100 can be an elastic material, such as plastic. In order to fix the wire harness 600, one side of the bracket 100 is provided with an elastic claw 400 extending in a single direction, and the elastic claw 400 and the bracket surface 110 are spaced apart along the thickness direction of the bracket 100 (such as the Z direction in Figure 1 .

[0039] Specifically, as Figure 2 , Figure 2 A partial front view of the first battery module is shown. For example, as shown in the structure and direction of Figure 2 , the elastic claw 400 can extend in the vertical direction (such as the Y direction in Figure 2 ), and the upper end or lower end of the elastic claw 400 can be fixedly connected with the bracket 100 to form a connection end of the elastic claw 400; and the part of the elastic claw 400 other than the connection end is not connected with the bracket 100 to form a gap between the elastic claw 400 and the bracket surface 110; at the same time, the free end of the elastic claw 400 away from the connection end forms an opening communicating with the gap and the outside, and the wire harness 600 can enter the gap from the outside through the opening, so that the elastic claw 400 limits the wire harness 600 in the radial direction.

[0040] As Figure 3 , Figure 3 is shown Figure 2The middle A-A cross-sectional view. Based on the difficulty of forming, assembling difficulty and avoid damage to the wire harness 600 and other aspects of the consideration, the gap distance between the elastic claw 400 and the bracket surface 110 is large, which although facilitates the wire harness 600 inserted into the gap, but the corresponding, in the battery module transportation and installation process, the wire harness 600 is also easy to fall out of the gap. Especially the elastic claw 400 at the upper end is the connecting end (such as Figure 3 The elastic claw 400 shown in the middle), the opening is downward, the wire harness 600 is more likely to fall to the opening under the action of gravity and fall out of the gap.

[0041] To solve the above problems, as Figure 4 , Figure 4 The partial schematic view of the second structure of the battery module is shown, and the battery module provided by the embodiment comprises a base body 500 having a base body surface 510, and the base body 500 is connected with a wire harness positioning unit 200.

[0042] Exemplarily, the base body 500 can be a box body or a support structure (for example, a bracket 100) mounted on the box body. The wire harness positioning unit 200 can be connected to the base body 500 by means of bonding, welding, clamping, fastener connection or one-piece forming connection and the like.

[0043] Exemplarily, the base body surface 510 can be a side wall surface of the base body 500, or a surface of a structural member mounted on the side wall of the base body 500.

[0044] As Figure 5 , Figure 5 The partial front view schematic view of the second structure of the battery module is shown. Taking the structure and direction shown in Figure 5 , the battery module comprises at least partially extending in the transverse direction connecting wire 300, and the structure for limiting the position of the connecting wire 300 can be the wire harness positioning unit 200, or can comprise the wire harness positioning unit 200 and the elastic claw 400 described above.

[0045] Exemplarily, when the connecting wire 300 is limited by the wire harness positioning unit 200 and the elastic claw 400 at the same time, the opening of the elastic claw 400 is upward, so that the connecting wire 300 has a tendency to move toward the connecting end of the elastic claw 400 under the action of gravity, and the connecting wire 300 can be prevented from falling out of the elastic claw 400 under the action of gravity.

[0046] As Figure 6 , Figure 6 The partial cross-sectional view of the middle B-B is shown in Figure 5 . In some embodiments, the wire harness positioning unit 200 comprises an elastic claw assembly 210 and an anti-falling protrusion 220, one end of the elastic claw assembly 210 is connected with the base body 500, and a second gap 250 is formed between the elastic claw assembly 210 and the base body surface 510. AsFigure 7 , Figure 7 Shown Figure 5 The middle section BB is a partial cutaway diagram after the connecting line 300 enters the second gap 250. The anti-slip protrusion 220 is disposed in the second gap 250, connected to the elastic claw assembly 210 and spaced apart from the base surface 510.

[0047] Illustratively, the connecting wire 300 may be a single electrical connecting wire, or a wire bundle consisting of at least two electrical connecting wires.

[0048] For example, the anti-slip protrusion 220 and the elastic claw assembly 210 can be connected by integral molding, welding, clamping or adhesive connection.

[0049] Combine Figure 7 To further illustrate, the connecting wire 300 enters the second gap 250 from the outside through the bottom of the elastic claw assembly 210 under the action of external force, and the moving direction of the connecting wire 300 from the outside into the second gap 250 (such as Figure 7 The connecting wire 300 moves from bottom to top in the second gap 250 along the first moving direction until it is limited to a predetermined position by the harness positioning unit 200.

[0050] Accordingly, if the connecting wire 300 is to be removed from the wiring harness positioning unit 200, it needs to be removed from top to bottom (e.g. Figure 7 The connecting wire 300 can only enter the outside world from under the elastic claw assembly 210 by passing through the second gap 250 (in the opposite direction of the Y direction in the drawing). When passing through the second gap 250, the connecting wire 300 encounters the anti-slip protrusion 220 and needs to climb over the anti-slip protrusion 220 before continuing to move. In other words, the provision of the anti-slip protrusion 220 can at least extend the movement path of the connecting wire 300, thereby hindering the connecting wire 300 from passing through the second gap 250, and effectively preventing the connecting wire 300 from escaping from the wire harness positioning unit 200.

[0051] like Figure 7 In some embodiments, at least two anti-slip protrusions 220 are provided along the first moving direction.

[0052] Exemplarily, the spacing distance between two adjacent anti-slip protrusions 220 is greater than the outer diameter of the connecting wire 300, so as to prevent the connecting wire 300 from directly crossing over the next anti-slip protrusion 220 after turning over the previous anti-slip protrusion 220, thereby improving the anti-slip effect of the wiring harness positioning unit 200 with multiple anti-slip protrusions 220.

[0053] In this embodiment, at least two anti-falling protrusions 220 are provided in the second gap 250 to prevent the connecting wire 300 from falling out of the wiring harness positioning unit 200 at least twice.Figure 8 , Figure 8 The embodiment shows Figure 5 the part of the section of B-B in the figure, which is blocked by the anti-escape bump 220 after the connecting line 300 enters the second gap 250.

[0054] When the connecting line 300 reaches the previous anti-escape bump 220 (i.e. Figure 8 the upper anti-escape bump 220 in the figure), the connecting line 300 will be blocked by the anti-escape bump 220, and the connecting line 300 needs to roll over the anti-escape bump 220 to continue moving.

[0055] After the connecting line 300 rolls over the previous anti-escape bump 220, it will be blocked again by the next anti-escape bump 220 (i.e. Figure 8 the lower anti-escape bump 220 in the figure) during the process of continuing to move, and so on. The external force driving the connecting line 300 to move will be weakened once for each anti-escape bump 220 that the connecting line 300 is blocked by. Therefore, at least two anti-escape bumps 220 are provided in the embodiment, which can effectively weaken the external force driving the connecting line 300 and prevent the connecting line 300 from escaping from the wire harness positioning unit 200.

[0056] As Figure 8 shown in some embodiments, the gap distance between the at least two anti-escape bumps 220 and the surface 510 of the base (hereinafter referred to as the gap distance of the anti-escape bump 220) decreases in sequence along the first moving direction.

[0057] Taking the structure and direction shown in Figure 8 as an example, the gap distance of the upper anti-escape bump 220 is smaller than that of the lower anti-escape bump 220. In combination with the foregoing, the process of the connecting line 300 rolling over the anti-escape bump 220 (including when the connecting line 300 enters the second gap 250 and when the connecting line 300 escapes) is essentially the process of the connecting line 300 extruding the elastic claw assembly 210, so that at least part of the structure of the elastic claw assembly 210 moves away from the surface 510 of the base, thereby increasing the gap distance of the anti-escape bump 220, so that the connecting line 300 can pass over the top of the anti-escape bump 220.

[0058] It can be understood that the difficulty of the connecting line 300 rolling over the top of the anti-escape bump 220 is related to the gap distance of the anti-escape bump 220. The larger the gap distance is, the easier it is for the connecting line 300 to roll over the anti-escape bump 220; on the contrary, the smaller the gap distance is, the more difficult it is for the connecting line 300 to roll over the anti-escape bump 220.

[0059] In this embodiment, when installing the connecting wire 300, the connecting wire 300 moves from upstream to downstream along the first moving direction. When the connecting wire 300 enters the second gap 250, it will first encounter the anti-slip protrusion 220 upstream of the first moving direction. By designing the gap distance between the anti-slip protrusion 220 closer to the upstream of the first moving direction to be larger, the connecting wire 300 can be more easily turned over the anti-slip protrusion 220 and installed in the wiring harness positioning unit 200, which can effectively reduce the difficulty of assembling the battery module.

[0060] At the same time, when the connecting wire 300 escapes from the wiring harness positioning unit 200, the connecting wire 300 moves from downstream to upstream in a direction opposite to the first movement direction. When the connecting wire 300 enters the second gap 250, it will first encounter the anti-escape protrusion 220 downstream of the first movement direction. By designing the gap between the anti-escape protrusion 220 closer to the downstream of the first movement direction to be smaller, it is easier for the connecting wire 300 to climb over the anti-escape protrusion 220 and enter the second gap 250, effectively preventing the connecting wire 300 from escaping from the wiring harness positioning unit 200.

[0061] The battery module provided in the embodiment of the present application has at least two limiting protrusions 220 disposed within the second gap 250 formed between the elastic claw assembly 210 and the base surface 510. When the connecting wire 300 escapes from the wiring harness positioning unit 200, the at least two limiting protrusions 220 can repeatedly block the movement of the connecting wire 300, effectively weakening the external force driving the connecting wire 300 and preventing the connecting wire 300 from escaping from the wiring harness positioning unit 200. Simultaneously, along the first movement direction, the gap distance between the at least two limiting protrusions 220 and the base surface 510 decreases sequentially. This not only facilitates the installation of the connecting wire 300 into the wiring harness positioning unit 200, reducing the difficulty of battery module assembly, but also effectively blocks the connecting wire 300 from escaping from the wiring harness positioning unit 200, further preventing the connecting wire 300 from escaping from the wiring harness positioning unit 200.

[0062] like Figure 6 In some embodiments, the surface of the anti-slip protrusion 220 located upstream in the first moving direction (ie Figure 6 The downward-facing surface of the middle anti-slip protrusion 220 is configured as an inclined surface facing the base surface 510 .

[0063] When installing the connection line 300, it is necessary to manually drive the connection line 300 to move from bottom to top in the second gap 250. When the anti-falling protrusion 220 is arranged in the second gap 250, it is also necessary to drive the connection line 300 to flip over the anti-falling protrusion 220. In order to facilitate installation, the surface of the anti-falling protrusion 220 upstream of the first moving direction (close to the outside world) is configured as an inclined surface in the present embodiment, so that when the connection line 300 is in abutment with the inclined surface, an action force is generated to drive the connection line 300 to move to the top end of the anti-falling protrusion 220 (the end close to the surface 510 of the base), so that the connection line 300 is more easily flipped over the anti-falling protrusion 220.

[0064] At the same time, it should also be noted that the anti-falling protrusion 220 plays a blocking role for the connection line 300 is the surface of the anti-falling protrusion 220 upstream of the first moving direction, so that the surface of the anti-falling protrusion 220 close to the outside world is configured as an inclined surface will not adversely affect the blocking effect of the anti-falling protrusion 220.

[0065] As Figure 8 , in some embodiments, the surface of the anti-falling protrusion 220 downstream of the first moving direction (away from the outside world) is configured as a plane, which is perpendicular to the moving direction of the connection line 300 in the second gap 250 (such as Figure 8 the Y direction in the figure).

[0066] With Figure 8 the structure and direction shown in the figure as an example, the connection line 300 moves from top to bottom in the second gap 250 during the process of being pulled out of the wire harness positioning unit 200. The upper surface of the anti-falling protrusion 220 is designed as a horizontal plane in the present embodiment, and when the connection line 300 is driven to move by the downward external force to abut with the horizontal plane, theoretically no action force is generated to drive the connection line 300 to move from the root to the top of the anti-falling protrusion 220. Therefore, the blocking effect of the anti-falling protrusion 220 on the connection line 300 can be improved, and the connection line 300 can be effectively prevented from being pulled out of the wire harness positioning unit 200.

[0067] As Figure 9 , Figure 9 illustrated Figure 5 , a partial cross-sectional view of the anti-falling protrusion 220 of the second structure of the B-B section in the figure is shown, in some embodiments, the surface of the anti-falling protrusion 220 downstream of the first moving direction is configured as an inclined surface towards the elastic claw assembly 210.

[0068] When the connecting wire 300 is driven downward by an external force and moves until it contacts the inclined surface of the anti-slip protrusion 220 located downstream in the first movement direction, the inclined surface generates a force that drives the connecting wire 300 toward the base of the anti-slip protrusion 220. This further prevents the connecting wire 300 from rolling over the top of the anti-slip protrusion 220, thereby enhancing the blocking effect of the anti-slip protrusion 220 on the connecting wire 300 and effectively preventing the connecting wire 300 from escaping from the wiring harness positioning unit 200.

[0069] like Figure 6 In some embodiments, the direction intersecting the substrate surface 510 is defined as a second direction, and the elastic claw assembly 210 includes a second direction (eg Figure 6 The first elastic claw 211 and the second elastic claw 212 are spaced apart from each other (in the Z direction in FIG), the second elastic claw 212 is located between the first elastic claw 211 and the base surface 510, the connecting end of the first elastic claw 211 is connected to the base 500, and the free end of the first elastic claw 211 is connected to the connecting end of the second elastic claw 212, and a first accommodating space 230 for accommodating the connecting line 300 is formed between the first elastic claw 211 and the second elastic claw 212; the gap between the second elastic claw 212 and the base surface 510 is constructed as a second gap 250, and the first accommodating space 230 is connected to the second gap 250.

[0070] Exemplarily, the first elastic claw 211 is vertically arranged.

[0071] Illustratively, the second elastic claw 212 and the first elastic claw 211 are parallel to each other; or, an extension line of the second elastic claw 212 intersects with the first elastic claw 211 .

[0072] Exemplarily, the free end of the first elastic claw 211 and the connecting end of the second elastic claw 212 are connected by integral molding, welding, clamping or adhesive connection.

[0073] Exemplarily, the connection end of the first elastic claw 211 is connected to the base 500 by integral molding, welding, clamping or adhesive connection.

[0074] Exemplarily, the base 500 is provided with a wire groove for accommodating the connecting wire 300, and the extension direction of the wire groove is the same as the extension direction of the connecting wire 300. The connecting end of the first elastic claw 211 is connected to the groove wall on one side of the wire groove, and the free end of the first elastic claw 211 is spaced apart from the groove wall on the other side of the wire groove. The bottom of the wire groove can be used as the base surface 510.

[0075] Exemplarily, the free end of the second elastic claw 212 can be in contact with the base 500 or the first elastic claw 211 when no external force is applied, and when the connecting wire 300 is installed, an external force can be applied to the second elastic claw 212 to bend or tilt the second elastic claw 212, so that a gap is formed at the free end of the second elastic claw 212 to communicate with the first accommodating space 230, and the connecting wire 300 enters the first accommodating space 230 through the gap.

[0076] As Figure 6 , the connecting end of the first elastic claw 211 is connected with the base 500, and the free end is connected with the second elastic claw 212, so that the first elastic claw 211 and the second elastic claw 212 jointly form a U-shaped structure. The connecting wire 300 cannot enter the first accommodating space 230 from the outside of the first elastic claw 211 (i.e. the side of the elastic claw assembly 210 away from the surface 510 of the base), but can only pass by the free end of the first elastic claw 211 and the connecting end of the second elastic claw 212, then pass through the second gap 250 and the free end of the second elastic claw 212 before entering the first accommodating space 230.

[0077] Correspondingly, the connecting wire 300 needs to pass through the above-mentioned path in reverse if it is to be detached from the first accommodating space 230, and needs to change direction multiple times during the process, which is relatively difficult to achieve. At the same time, even if the connecting wire 300 accidentally detaches from the first accommodating space 230, it will still enter the second gap 250 and be confined in a relatively small space close to the surface 510 of the base, further preventing the connecting wire 300 from separating from the base 500, and helping to reliably confine the connecting wire 300 in the preset position during the transportation and installation of the battery module, preventing adverse effects on the assembly or normal use of the battery module due to the detachment of the connecting wire 300.

[0078] As Figure 6 , in some embodiments, the extension direction of the second elastic claw 212 (e.g. the positive direction of the Y direction in Figure 6 ) is parallel to the extension direction of the first elastic claw 211 (e.g. the negative direction of the Y direction in Figure 6 ); along the extension direction of the second elastic claw 212, the free end of the second elastic claw 212 is spaced apart from the base 500 to form a first gap 240 between the free end of the second elastic claw 212 and the base 500, and the first accommodating space 230 communicates with the second gap 250 through the first gap 240.

[0079] Exemplarily, the extension length of the second elastic claw 212 can be less than the extension length of the first elastic claw 211, so that the free end of the second elastic claw 212 is spaced apart from the base 500.

[0080] In the embodiment, even if the second elastic claw 212 is not subjected to external force, the free end of the second elastic claw 212 is spaced apart from the base body 500 to form the first gap 240. When the connecting wire 300 is installed, the connecting wire 300 can be controlled to directly bypass the free end of the second elastic claw 212 through the first gap 240 to enter the first accommodating space 230, which helps to reduce the assembly difficulty of installing the connecting wire 300, improves the assembly efficiency of the battery module, and shortens the assembly time.

[0081] However, if the size of the first gap 240 is too large, the connecting wire 300 can easily come out of the first accommodating space 230, which can adversely affect the limiting effect of the wire harness positioning unit 200.

[0082] To solve the above problems, as Figure 6 In some embodiments, the size a of the first gap 240 along the extension direction of the second elastic claw 212 is not greater than the outer diameter of the connecting wire 300.

[0083] For example, the difference between a and the outer diameter of the connecting wire 300 is 0.2 to 0.3 mm, such as 0.2 mm, 0.23 mm, 0.25 mm, 0.27 mm, or 0.3 mm.

[0084] When the size a of the first gap 240 is equal to the outer diameter of the connecting wire 300, the connecting wire 300 needs to be completely aligned with the first gap 240 to come out of the first accommodating space 230, which can improve the difficulty of the connecting wire 300 to come out and reduce the risk of coming out.

[0085] When the size a of the first gap 240 is less than the outer diameter of the connecting wire 300, the connecting wire 300 can only come out of the first accommodating space 230 when the second elastic claw 212 is deformed (such as bending or tilting) to expand the size a and completely align with the first gap 240, which is more difficult to come out and has a smaller risk of coming out.

[0086] Therefore, by using the structure of the embodiment, the connecting wire 300 can be conveniently installed into the wire harness positioning unit 200 while ensuring that the connecting wire 300 can be reliably limited at a predetermined position, taking into account the yield and assembly efficiency of the battery module, which is beneficial to mass production.

[0087] For example, Figure 6 In some embodiments, the size b of the second gap 250 along the second direction is not greater than the outer diameter of the connecting wire 300.

[0088] During the coming-out process of the connecting wire 300, if the size b of the second gap 250 is not greater than the outer diameter of the connecting wire 300 after the connecting wire 300 enters the first gap 240 from the first accommodating space 230, the connecting wire 300 will be hindered from entering the second gap 250 from the first gap 240.

[0089] When the connecting line 300 enters the second gap 250, the second elastic claw 212 and the base surface 510 are in contact with the connecting line 300 (when b is equal to the outer diameter of the connecting line 300) or a certain clamping force is generated on the connecting line 300 (when b is smaller than the outer diameter of the connecting line 300), thereby hindering the connecting line 300 from passing through the second gap 250 along the extension direction of the second elastic claw 212, and effectively preventing the connecting line 300 from being pulled out of the wiring harness positioning unit 200.

[0090] As Figure 6 In some embodiments, the second elastic claw 212 is vertically arranged, and the first gap 240 is located above the second elastic claw 212.

[0091] In combination with the foregoing, the connecting line 300 needs to pass through the first gap 240 if it is to be pulled out of the first accommodating space 230. When the second elastic claw 212 is vertically arranged and the first gap 240 is located above the second elastic claw 212, the connecting line 300 in the first accommodating space 230 needs to be moved from the bottom to the top of the first accommodating space 230 to enter the first gap 240. Under the action of gravity, the process of the connecting line 300 entering the first gap 240 from the first accommodating space 230 will consume part of the external force driving the connecting line 300, and thus help reduce the risk of the connecting line 300 being pulled out of the wiring harness positioning unit 200 under the driving of the external force.

[0092] Based on the same inventive concept, in combination with the description of the battery module in the above various embodiments, the present embodiment provides a battery pack, which has the corresponding technical effects of the battery module in the above various embodiments, and details are not repeated here.

[0093] A battery pack comprises the battery module as described in the above various embodiments.

[0094] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims.

[0095] Each of the embodiments in the present application is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be mutually referred to.

[0096] The description of the present application is given for the purpose of illustration and description, and is not exhaustive or limiting to the present application. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical application of the present application, and to enable those of ordinary skill in the art to understand the present application in order to design various embodiments with various modifications for specific purposes.

[0097] Those skilled in the art will understand that the above discussion of any embodiment is merely exemplary in nature and is not intended to limit the scope of the application (including the claims) to these examples; the above embodiments or technical features among different embodiments can also be combined, steps can be implemented in any order, and there are many other changes to the aspects of the embodiments of the application as described above, which are not provided in details for the sake of brevity.

[0098] Although the present application has been described in connection with the specific embodiments thereof, it will be readily appreciated by those skilled in the art that many alternatives, modifications and variations to those embodiments will be apparent.

[0099] The embodiments of the present application are intended to cover all such alternatives, modifications and variations as falling within the scope of the broadest possible interpretation of the appended claims. Accordingly, any one of the steps of the embodiments of the present application can be carried out in any order or simultaneously, and the scope of the application should be determined by the appended claims and their legal equivalents rather than by the specific embodiments that were discussed.

Claims

1. A battery module, characterized by, The application relates to a battery module. The battery module comprises a base body and a wire harness positioning unit. The wire harness positioning unit comprises an elastic claw assembly and a anti-off bump. The elastic claw assembly is connected to the base body.

2. The battery module according to claim 1, wherein: The anti-off bump is arranged in a second gap between the elastic claw assembly and the base body.

3. The battery module of claim 1, wherein, The moving direction of the connecting wire into the second gap is defined as a first moving direction.

4. The battery module of claim 1, wherein, The anti-off bump is provided with at least two anti-off bumps along the first moving direction.

5. The battery module of claim 1, wherein, The gap distance between the anti-off bump and the base body surface decreases in sequence along the first moving direction. The surface of the anti-off bump upstream of the first moving direction is configured as an inclined surface towards the base body surface. The surface of the anti-off bump downstream of the first moving direction is configured as a plane, and the plane is perpendicular to the moving direction of the connecting wire in the second gap.

6. The battery module of claim 5, wherein, The direction intersecting with the base body surface is defined as a second direction.

7. The battery module of claim 6, wherein, The elastic claw assembly comprises a first elastic claw and a second elastic claw arranged in the second direction.

8. The battery module of claim 6, wherein, The second elastic claw is located between the first elastic claw and the base body surface.

9. The battery module of claim 1, wherein, The connecting end of the first elastic claw is connected to the base body.

10. The battery module of claim 1, wherein, The free end of the first elastic claw is connected to the connecting end of the second elastic claw.

11. A battery pack, characterized by, The first accommodating space for accommodating the connecting wire is formed between the first elastic claw and the second elastic claw. The gap between the second elastic claw and the base body surface is configured as the second gap. The first accommodating space and the second gap are communicated. The extending direction of the second elastic claw is parallel to the extending direction of the first elastic claw. The free end of the second elastic claw is arranged in the extending direction of the second elastic claw. The first gap is formed between the free end of the second elastic claw and the base body. The size of the first gap along the extending direction of the second elastic claw is not greater than the outer diameter of the connecting wire. The second elastic claw is arranged vertically. The first gap is located above the second elastic claw. The size of the second gap along the second direction is not greater than the outer diameter of the connecting wire. The surface of the anti-off bump downstream of the first moving direction is configured as an inclined surface towards the elastic claw assembly. The battery module comprises the battery module as claimed in any one of claims 1 to 10.

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