Battery module, output pole assembly, battery and electric equipment

Abstract

The utility model discloses a battery module, an output pole assembly, a battery and electric equipment, the battery module comprises an end plate, a bearing piece and a limiting structure, and the end plate is used for being connected to the end part of the battery module; the bearing part is used for bearing an output electrode of the battery module and is inserted into the end plate along a first direction; the limiting structure is connected to one of the bearing piece and the end plate and abuts against the other one of the bearing piece and the end plate in the second direction, and the limiting structure at least can elastically deform in the second direction; wherein an included angle is formed between the second direction and the first direction. According to the technical scheme provided by the embodiment of the invention, the possibility that the bearing part shakes relative to the end plate can be reduced, and the structural stability of the battery module is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery module, an output electrode assembly, a battery and an electrical device. Background Art

[0002] The battery module is usually provided with a carrier and an end plate, but the connection between the carrier and the end plate in the related art is not stable enough, which causes the carrier to shake or tilt relative to the end plate. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the present application is to provide a battery module, an output pole assembly, a battery and an electrical device.

[0004] The first aspect of the present application provides a battery module, including an end plate, a supporting member and a limiting structure, wherein the supporting member is inserted into the end plate along a first direction; the limiting structure is connected to one of the supporting member and the end plate, and abuts against the other of the supporting member and the end plate along a second direction, and the limiting structure can be elastically deformed at least along the second direction; wherein the second direction is set at an angle to the first direction.

[0005] In the technical solution provided in the embodiment of the present application, the end plate can be arranged on one side of the battery module, the carrier can be used to carry the output pole of the battery module, and the carrier can be plugged into the end plate along the first direction, so as to fix the output pole relative to the end of the battery module. On this basis, the battery module also includes a limiting structure, the limiting structure is connected to one of the carrier and the end plate, and abuts against the other of the carrier and the end plate along the second direction, and the limiting structure can be elastically deformed at least along the second direction, that is, the limiting structure abuts against the other of the carrier and the end plate by the elastic force generated by the elastic deformation, and the second direction and the first direction are set at an angle, that is, the abutment direction of the limiting structure is different from the direction in which the carrier is plugged into the end plate, so that the limiting structure can apply a supporting force between the carrier and the end plate along the second direction to improve the stability of the connection between the carrier and the end plate, and effectively reduce the possibility of the carrier shaking relative to the end plate. Compared with the solution in the related art that lacks effective support between the bearing member and the end plate, a limiting structure is provided in the present application. The limiting structure applies a supporting force along the second direction between the bearing member and the end plate through elastic deformation, so that the bearing member and the end plate can fit closely, thereby reducing the possibility of the bearing member shaking relative to the end plate and improving the connection stability of the bearing member.

[0006] In some embodiments of the present application, the limiting structure includes a first connecting portion and an abutting portion arranged along a first direction, the first connecting portion is connected to the bearing member, and the abutting portion abuts against the end plate along a second direction. Here, the limiting structure is provided with a first connecting portion and an abutting portion along the first direction, and the abutting portion is located at the free end of the first connecting portion, which is more convenient for generating elastic deformation to apply elastic force.

[0007] In some embodiments of the present application, the abutting portion is provided with a protrusion, the protrusion protrudes from the abutting portion along the second direction, and the protrusion is located on the side of the abutting portion away from the bearing member, and the protrusion abuts against the end plate. Here, the abutting portion is provided with a protrusion, and the protrusion is located on the side of the abutting portion away from the bearing member. After the bearing member and the end plate are assembled, the protrusion abuts against the end plate, so as to facilitate the elastic deformation of the limiting structure.

[0008] In some embodiments of the present application, a guiding slope is provided on the protrusion and / or the end plate, and the guiding slope is provided at an acute angle with the first direction. Here, by providing the guiding slope on at least one of the protrusion and the end plate, since the guiding slope is provided at an acute angle with the first direction, when the bearing member is plugged into the end plate, the guiding slope can guide the protrusion to quickly abut against the end plate, making the assembly of the bearing member and the end plate more convenient.

[0009] In some embodiments of the present application, the abutting portion includes an abutting surface, which is a plane or a convex arc surface. Here, the abutting portion is provided with an abutting surface, which abuts against the end plate through the abutting surface, and the abutting surface can be a plane or an arc surface. The contact area between the abutting surface provided with a plane and the end plate is larger, which can make the force of the limiting structure more dispersed; the arc surface facilitates the elastic deformation of the limiting structure.

[0010] In some embodiments of the present application, the first connecting portion is connected to the bearing member through a reinforcing rib, and the length direction of the reinforcing rib is set at an angle to the length direction of the limiting structure. Here, by setting the reinforcing rib, the structural strength of the bearing member can be improved, and the length direction of the reinforcing rib is set at an angle to the length direction of the limiting structure, so that the structure of the reinforcing rib and the limiting structure is more complex and has a stronger anti-bending ability, thereby improving the structural strength of the limiting structure.

[0011] In some embodiments of the present application, the bearing member includes a second connection portion and a bearing portion, the second connection portion is plugged into the end plate, the bearing portion protrudes from the end plate, and the second direction is set at an angle to the protruding direction of the bearing portion. Here, the bearing member is plugged into the end portion through the second connection portion, and the bearing portion protrudes from the end plate to facilitate the connection of the output pole, and the force direction of the limiting structure is set at an angle to the protruding direction of the bearing portion, which can effectively reduce the possibility of shaking caused by the protrusion of the bearing portion.

[0012] In some embodiments of the present application, the abutment portion is located at an end of the limiting structure away from the bearing portion. Here, the abutment portion is arranged away from the bearing portion, so that the moment of the supporting force applied by the abutment portion is longer, and a stronger limit can be provided to further reduce the possibility of the bearing member shaking relative to the end plate, and improve the connection stability of the bearing member.

[0013] In some embodiments of the present application, the carrier includes a first surface perpendicular to the second direction and a second surface parallel to the second direction, and the limiting structure is connected to the first surface and / or the second surface. Here, the limiting structure can be connected to different surfaces of the carrier, and when the limiting structure is connected to the first surface of the carrier, the carrier can provide a limit for the elastic deformation of the limiting structure, and when the limiting structure is connected to the second surface of the carrier, the elastic deformation of the limiting structure is freer.

[0014] In some embodiments of the present application, the carrier includes a clamping portion, which is arranged on at least one side of the carrier along the third direction, the clamping portion is clamped to the end plate, and the limiting structure is connected to the clamping portion; wherein the third direction is arranged at an angle to the first direction. Here, the carrier is also provided with a clamping portion, which is clamped to the end plate through the clamping portion to improve the connection stability between the carrier and the end plate, and the limiting structure can be connected to the clamping portion, making the structure more compact.

[0015] In some embodiments of the present application, a groove is provided on the clamping part, and the limiting structure is located in the groove. Here, by providing a groove on the clamping part, the groove is used to accommodate the limiting structure, so as to further reduce the space occupied by the bearing member and the limiting structure, and after the limiting structure is elastically deformed, the clamping part can be conveniently clamped with the end plate, and the structure is more reasonable.

[0016] In some embodiments of the present application, there are multiple limiting structures, and the multiple limiting structures are symmetrically distributed on opposite sides of the bearing member. Here, by setting multiple limiting structures, on the one hand, more limiting can be provided to further improve the connection stability between the bearing member and the end plate, and on the other hand, the limiting structures set on the opposite sides of the bearing member make the force on the bearing member more balanced.

[0017] In some embodiments of the present application, the limiting structure also includes a limiting protrusion and a limiting groove, the limiting protrusion is arranged on the supporting member, the limiting groove is arranged on the end plate, and the limiting protrusion and the limiting groove are interference fit at least along a fourth direction; wherein the fourth direction is arranged at an angle to the first direction.

[0018] The second aspect of the present application provides an output pole assembly, including a supporting member and a limiting structure, wherein the supporting member is used to be inserted into the end plate of the battery module along a first direction; the limiting structure is arranged on the supporting member, and the limiting structure is used to abut against the end plate along a second direction, and the limiting structure can be elastically deformed at least along the second direction; wherein the second direction is arranged at an angle to the first direction.

[0019] In the technical solution of the embodiment of the present application, the output pole assembly includes a supporting member and a limiting structure. The limiting structure applies a supporting force along the second direction between the supporting member and the end plate through elastic deformation, so that the supporting member and the end plate can fit closely together, thereby reducing the possibility of the supporting member shaking relative to the end plate and improving the connection stability of the supporting member.

[0020] A third aspect of the present application provides a battery, comprising a conductive member and at least one battery module of the first aspect, wherein the battery module comprises an output pole, the output pole is arranged on a carrier, and the conductive member is used to electrically connect the output pole of at least one battery module.

[0021] In the technical solution of the embodiment of the present application, since the battery includes the battery module of the first aspect, it has the same technical effect, that is, a limiting structure is provided in the present application, and the limiting structure applies a supporting force along the second direction between the carrier and the end plate through elastic deformation, so that the carrier and the end plate can fit closely, so as to reduce the possibility of the carrier shaking relative to the end plate and improve the connection stability of the carrier.

[0022] A fourth aspect of the present application provides an electrical device, comprising the electrical device and the battery of the third aspect, wherein the conductive element of the battery is electrically connected to the electrical device.

[0023] In the technical solution of the embodiment of the present application, since the electrical equipment includes the battery of the third aspect, it has the same technical effect, that is, a limiting structure is provided in the present application, and the limiting structure applies a supporting force along the second direction between the support member and the end plate through elastic deformation, so that the support member and the end plate can fit closely, so as to reduce the possibility of the support member shaking relative to the end plate and improve the connection stability of the support member. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0025] Figure 1 It is a schematic diagram of the exploded structure of the bearing member and the end plate;

[0026] Figure 2 is a schematic diagram of the connection structure between the bearing member and the end plate;

[0027] Figure 3 A schematic diagram of the connection between the carrier and the end plate in the battery module provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of a partial explosion structure of a battery module provided in an embodiment of the present application;

[0029] Figure 5 Provided in the embodiments of this application Figure 4 A local enlarged schematic diagram of the middle A;

[0030] Figure 6A schematic diagram of the structure of the limiting structure in the battery module provided in the embodiment of the present application;

[0031] Figure 7 A schematic diagram of the internal structure of a battery module provided in an embodiment of the present application;

[0032] Figure 8 Provided for the embodiments of this application Figure 7 A partial enlarged schematic diagram of point B in the middle;

[0033] Fig. 9 A schematic diagram of the structure of a battery module provided in an embodiment of the present application;

[0034] Fig.10 A schematic diagram of the structure of the limiting protrusion and the limiting groove in the battery module provided in the embodiment of the present application;

[0035] Fig.11 A schematic diagram of the structure of a battery provided in an embodiment of the present application;

[0036] Fig.12 A schematic diagram of the structure of an electrical device provided in an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1-end plate; 11-connecting groove; 2-bearing member; 21-reinforcing rib; 22-second connecting portion; 23-bearing portion; 24-first surface; 25-second surface; 26-clamping portion; 27-groove; 3-limiting structure; 31-first connecting portion; 32-abutting portion; 33-protrusion; 34-guiding slope; 35-abutting surface; 36-limiting protrusion; 37-limiting groove; 4-housing; 5-output pole; 6-battery cell; 7-box; 8-conductive member; 9-electrical appliance; x-first direction; y-second direction; z-third direction. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0045] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0047] Below, this application is described in detail.

[0048] Batteries are increasingly used in life and industry. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, and aerospace and other fields. With the continuous expansion of battery application areas, the market demand is also constantly expanding.

[0049] In order to provide support for the components outside the battery module, refer to Figure 1 , Figure 2 and Fig. 9 The battery module is usually provided with a battery module, referring to Figure 1 and Figure 2 The battery module includes an end plate 1 and a carrier 2. The carrier 2 is connected to the end plate 1 by plugging or the like. In order to facilitate the connection between the carrier 2 and the end plate 1, the limit between the two is relatively loose. However, the carrier 2 needs to carry components such as the output pole 5, and is prone to shaking or tilting under the action of gravity, thereby affecting the components such as the output pole 5 carried thereon.

[0050] In view of the problems existing in the above-mentioned related technologies, this application proposes a battery module. Figure 3 and Figure 4 The battery module includes an end plate 1, a carrier 2 and a limiting structure 3, wherein the carrier 2 is plugged into the end plate 1 along a first direction x; the limiting structure 3 is connected to one of the carrier 2 and the end plate 1, and abuts against the other of the carrier 2 and the end plate 1 along a second direction y, and the limiting structure 3 can be elastically deformed at least along the second direction y; wherein the second direction y is set at an angle to the first direction x.

[0051] In the present application, refer to Figure 7 and Fig. 9 The battery module may further include a shell 4, the shell 4 and the end plate 1 enclose a cavity to accommodate the battery cell 6, the end plate 1 can be arranged on one side of the shell 4, the end plate 1 can be arranged on one side of the shell 4 along the length direction, or on one side of the shell 4 along the width direction or the height direction. The end plate 1 can be round, square, etc., and the embodiment of the present application is not limited to this.

[0052] In an embodiment of the present application, the carrier 2 can be used to support the output pole 5 of the battery module, and the output pole 5 is electrically connected to the battery cell 6 in the shell 4. Alternatively, the carrier 2 is used to support other components on the outside of the battery module. The carrier 2 can be a block structure, a plate structure, a rod structure, etc.

[0053] For example, the carrier 2 is approximately a square plate-shaped structure, and the carrier 2 is used to support the output pole 5. The output pole 5 can be clamped on the carrier 2, or the output pole 5 is connected to the carrier 2 by bonding, welding, fastener connection, etc. Since the output pole 5 needs to be conductive, the carrier 2 can be made of insulating materials such as plastic, and the output pole 5 is connected to the carrier 2 by fasteners such as screws.

[0054] In the embodiment of the present application, the supporting member 2 is plugged into the end plate 1, specifically, a connecting hole or a connecting groove 11 is provided on the end plate 1, the central axis of the connecting hole is set along the first direction x, and the sliding direction of the connecting groove 11 is set along the first direction x, and the supporting member 2 can be connected to the connecting hole or the connecting groove 11 along the first direction x, and the inner wall of the connecting hole or the connecting groove 11 provides a limit for the supporting member 2, wherein the first direction x can be a direction perpendicular to the end plate 1, or a direction parallel to the end plate 1.

[0055] In an embodiment of the present application, the limiting structure 3 can be connected to the supporting member 2 and abut against the end plate 1 along the second direction y through elastic deformation, or the limiting structure 3 can be connected to the end plate 1 and abut against the supporting member 2 along the second direction y through elastic deformation.

[0056] In the embodiment of the present application, the limiting structure 3 can be made of a material that can produce elastic deformation, such as metal, plastic, rubber, etc. Taking the solution that the limiting structure 3 is connected to the bearing member 2 and abuts against the end plate 1 as an example, the end plate 1 has a limiting surface abutted by the limiting structure 3. When the bearing member 2 is plugged into the end plate 1, the limiting structure 3 elastically deforms away from the limiting surface in the second direction y, so that the limiting structure 3 generates an elastic force. Under the action of the elastic force, the limiting structure 3 has a tendency to move toward the limiting surface, so that it is tightly abutted against the end plate 1 along the second direction y.

[0057] In the embodiment of the present application, the angle between the second direction y and the first direction x can be an obtuse angle, a right angle or an acute angle. For example, the second direction y is set at a right angle to the first direction x, that is, the second direction y is any direction perpendicular to the first direction x. For example, the first direction x is set perpendicular to the end plate 1, and the second direction y can be the length direction or width direction of the end plate 1.

[0058] In the battery module provided in the embodiment of the present application, the end plate 1 can be set on one side of the battery module, and the output pole 5 of the battery module is set on the carrier 2 and supported by the carrier 2. The carrier 2 can be inserted into the end plate 1 along the first direction x, so as to fix the output pole 5 relative to the end of the battery module.

[0059] On this basis, the battery module also includes a limiting structure 3, which is connected to one of the carrier 2 and the end plate 1, and abuts against the other of the carrier 2 and the end plate 1 along the second direction y, and the limiting structure 3 can at least be elastically deformed along the second direction y, that is, the limiting structure 3 abuts against the other of the carrier 2 and the end plate 1 by virtue of the elastic force generated by the elastic deformation, and the second direction y and the first direction x are set at an angle, that is, the abutting direction of the limiting structure 3 is different from the direction in which the carrier 2 is inserted into the end plate 1, so that the limiting structure 3 can apply a supporting force between the carrier 2 and the end plate 1 along the second direction y, so as to improve the stability of the connection between the carrier 2 and the end plate 1, and effectively reduce the possibility of the carrier 2 shaking relative to the end plate 1.

[0060] Compared with the solution in the related art that lacks effective support between the supporting member 2 and the end plate 1, a limiting structure 3 is provided in the present application. The limiting structure 3 applies a supporting force along the second direction y between the supporting member 2 and the end plate 1 through elastic deformation, so that the supporting member 2 and the end plate 1 can fit closely, so as to reduce the possibility of shaking of the supporting member 2 relative to the end plate 1 and improve the stability of the battery module.

[0061] Reference Figure 4 , Figure 5 and Figure 6 In some possible embodiments of the present application, the limiting structure 3 includes a first connecting portion 31 and an abutting portion 32 arranged along a first direction x, the first connecting portion 31 is connected to the supporting member 2, and the abutting portion 32 abuts against the end plate 1 along a second direction y.

[0062] In the embodiment of the present application, the first connecting portion 31 may be a rod-shaped structure, a plate-shaped structure, etc., and the cross-section of the first connecting portion 31 may be circular, square, triangular, etc. Figure 4 and Figure 5 In a possible embodiment of the present application, the first connecting portion 31 is a long plate-shaped structure with a square cross-section, one end of the first connecting portion 31 is connected to the supporting member 2, and the other end is a free end and can move freely relative to the supporting member 2.

[0063] In the embodiment of the present application, the abutting portion 32 may be a block structure, a columnar structure, etc. The abutting portion 32 and the first connecting portion 31 may be made of the same or different materials, and the abutting portion 32 and the connecting portion may be connected by clamping, bonding, welding, etc. For example, the abutting portion 32 is integrally formed and arranged at the free end of the first connecting portion 31.

[0064] In the embodiment of the present application, the part of the limiting structure 3 that produces elastic deformation can be the first connecting part 31 or the abutting part 32. For example, the elastic deformation is produced by the first connecting part 31. On the one hand, one end of the first connecting part 31 is freely set to facilitate elastic deformation. On the other hand, the rigid setting of the abutting part 32 can provide a more stable limiting support.

[0065] In the battery module provided in the embodiment of the present application, the limiting structure 3 is provided with a first connecting portion 31 and an abutting portion 32 along the first direction x, and the abutting portion 32 is located at the free end of the first connecting portion 31, which is more convenient for generating elastic deformation to apply elastic force.

[0066] Reference Figure 6 In some possible embodiments of the present application, the abutting portion 32 is provided with a protrusion 33, the protrusion 33 protrudes from the abutting portion 32 along the second direction y, and the protrusion 33 is located on the side of the abutting portion 32 away from the supporting member 2, and the protrusion 33 abuts against the end plate 1.

[0067] In the embodiment of the present application, the protrusion 33 may be circular, square, triangular, etc., which is not limited in the embodiment of the present application. In addition, one or more protrusions 33 may be provided on the abutting portion 32, and the plurality of protrusions 33 may be arranged in a circular or rectangular array.

[0068] In the battery module provided in the embodiment of the present application, the abutment portion 32 is provided with a protrusion 33, and the protrusion 33 is located on the side of the abutment portion 32 away from the supporting member 2. After the supporting member 2 and the end plate 1 are assembled, the protrusion 33 abuts against the end plate 1, which facilitates the elastic deformation of the limiting structure 3.

[0069] Reference Figure 5 and Figure 6 In some possible embodiments of the present application, a guiding slope 34 is provided on the protrusion 33 and / or the end plate 1, and the guiding slope 34 is provided at an acute angle with the first direction x.

[0070] In the embodiment of the present application, the angle between the guide slope 34 and the first direction x can be an acute angle or an obtuse angle. When the guide slope 34 is set on the protrusion 33, the guide slope 34 is inclined toward the central axis of the limiting structure 3 along the direction close to the first connecting portion 31; when the guide slope 34 is set on the end plate 1, that is, the guide slope 34 is located on the inner wall of the connecting groove 11, the guide slope 34 is inclined away from the central axis of the connecting groove 11 along the direction close to the protrusion 33.

[0071] In the embodiment of the present application, the guiding bevel 34 can be arranged on the protrusion 33. By setting the guiding bevel 34, the size of the abutting portion 32 gradually decreases along the approaching direction of the end plate 1, and the surface of the protrusion 33 is conical or trapezoidal, so as to facilitate guiding the limiting structure 3 into the connecting groove 11 of the end plate 1; the guiding bevel 34 can also be arranged on the inner wall of the connecting groove 11 of the end plate 1, that is, the size of the connecting groove 11 close to one end of the protrusion 33 gradually increases, and the connecting groove 11 presents a flared structure, so as to facilitate guiding the limiting structure 3 into the connecting groove 11; or, the guiding bevel 34 is respectively arranged on the protrusion 33 and the end plate 1, so as to further improve the convenience of operation.

[0072] The battery module provided in the embodiment of the present application is provided with a guiding bevel 34 on at least one of the protrusion 33 and the end plate 1. Since the guiding bevel 34 is arranged at an acute angle with the first direction x, when the carrier 2 is inserted into the end plate 1, the guiding bevel 34 can guide the protrusion 33 to quickly abut against the end plate 1, thereby facilitating the assembly of the carrier 2 and the end plate 1.

[0073] Reference Figure 5 and Figure 6 In some possible embodiments of the present application, the abutting portion 32 includes an abutting surface 35, and the abutting surface 35 is a plane, or the abutting surface 35 is a convex arc surface.

[0074] In the embodiment of the present application, the abutting surface 35 refers to the side surface of the abutting surface 35 away from the supporting member 2. The abutting surface 35 is used to abut against the end plate 1. When the abutting portion 32 is provided with a protrusion 33, the abutting surface 35 can also be the surface of the protrusion 33.

[0075] In the embodiment of the present application, when the abutment portion 32 produces elastic deformation, the limiting structure 3 does not move, and the abutment surface 35 can be set as a plane; when the first connection portion 31 produces elastic deformation, since the abutment portion 32 will rotate relative to the end of the first connection portion 31 connected to the supporting member 2, the abutment surface 35 can be set as an outwardly convex arc surface to facilitate the elastic deformation of the first connection portion 31.

[0076] The battery module provided in the embodiment of the present application has an abutment surface 35 arranged on the abutment portion 32, which abuts against the end plate 1 through the abutment surface 35. The abutment surface 35 may be a plane or an arc surface. The abutment surface 35 arranged in a plane has a larger contact area with the end plate 1, which can make the force of the limiting structure 3 more dispersed; the arc surface facilitates the elastic deformation of the limiting structure 3.

[0077] Reference Figure 5 and Figure 6 In some possible embodiments of the present application, the first connecting portion 31 is connected to the supporting member 2 through the reinforcing rib 21 , and the length direction of the reinforcing rib 21 is set at an angle to the length direction of the limiting structure 3 .

[0078] In the embodiment of the present application, the reinforcing rib 21 may be a plate-like structure, a strip-like structure, etc., provided on the carrier 2, and at least one side of the reinforcing rib 21 is connected to the main structure of the carrier 2, thereby increasing the structural complexity of the carrier 2. For example, the reinforcing rib 21 is a plate-like structure, and both ends of the reinforcing rib 21 along the length direction and one side along the width direction are connected to the main structure of the carrier 2.

[0079] In the embodiment of the present application, the length direction of the reinforcing rib 21 may be at an acute angle, a right angle, or an obtuse angle with the length direction of the limiting structure 3. For example, the length direction of the limiting structure 3 is arranged along the first direction x, and the length direction of the reinforcing rib 21 is arranged at a right angle with the length direction of the limiting structure 3.

[0080] The battery module provided in the embodiment of the present application can improve the structural strength of the carrier 2 by setting the reinforcing ribs 21, and the length direction of the reinforcing ribs 21 is set at an angle with the length direction of the limiting structure 3, so that the structure of the reinforcing ribs 21 and the limiting structure 3 is more complex and has stronger bending resistance, thereby improving the structural strength of the limiting structure 3.

[0081] Reference Figure 3 , Figure 4 and Figure 5 In some possible embodiments of the present application, the supporting member 2 includes a second connecting portion 22 and a supporting portion 23, the second connecting portion 22 is plugged into the end plate 1, the supporting portion 23 protrudes from the end plate 1, and the second direction y is set at an angle to the protruding direction of the supporting portion 23.

[0082] In the embodiment of the present application, the second connecting portion 22 is used to be snapped into the connecting groove 11 formed by the end plate 1. The outer contour of the second connecting portion 22 should be compatible with the inner contour of the connecting groove 11. For example, the contours of both are roughly square. In order to reduce the weight of the second connecting portion 22, weight-reducing holes can be set on the second connecting portion 22.

[0083] In the embodiment of the present application, the bearing portion 23 can be used to bear the output pole 5. The bearing portion 23 can be a square plate-like structure. The dimension of the bearing portion 23 along the first direction x is greater than the dimension of the end plate 1 along the first direction x. Therefore, when the bearing member 2 is plugged into the end plate 1, at least part of the bearing portion 23 will be located on the outside of the end plate 1, that is, protruding from the end plate 1. This part is easily affected by gravity and the like, and thus tilted relative to the end plate 1.

[0084] In the embodiment of the present application, the protruding direction of the bearing portion 23 is the normal direction of the protruding surface of the bearing portion 23 on the end plate 1. On this basis, the angle between the second direction y and the protruding direction of the bearing portion 23 can be an acute angle, an obtuse angle or a right angle. It can be understood that when the second direction y is perpendicular to the protruding direction of the bearing portion 23, the support force provided to the bearing portion 23 is the largest. In a possible embodiment of the present application, the bearing portion 23 protrudes from the end along the first direction x, and the second direction y forms a right angle with the protruding direction of the bearing portion 23.

[0085] In the battery module provided in the embodiment of the present application, the carrier 2 is plugged into the end portion through the second connecting portion 22, and the carrier portion 23 protrudes from the end plate 1 to facilitate the connection of the output pole 5, and the force direction of the limiting structure 3 is set at an angle to the protruding direction of the carrier portion 23, which can effectively reduce the possibility of shaking caused by the protrusion of the carrier portion 23.

[0086] Reference Figure 5 and Figure 6 In some possible embodiments of the present application, the abutment portion 32 is located at an end of the limiting structure 3 away from the bearing portion 23 .

[0087] For example, the reinforcing rib 21 is arranged on a side edge of the supporting member 2 close to the end plate 1, one end of the first connecting portion 31 is connected to the reinforcing rib 21, and the other end of the first connecting portion 31 extends away from the reinforcing rib 21 to form a free end, and the abutment portion 32 is located at the free end of the first connecting portion 31.

[0088] In the battery module provided in the embodiment of the present application, the abutment portion 32 is arranged away from the bearing portion 23, so that the torque of the supporting force applied by the abutment portion 32 is longer, and a stronger limit can be provided to further reduce the possibility of the bearing member 2 shaking relative to the end plate 1, thereby improving the stability of the battery module.

[0089] Reference Figure 5 and Figure 6 In some possible embodiments of the present application, the carrier 2 includes a first surface 24 perpendicular to the second direction y, and a second surface 25 parallel to the second direction y, and the limiting structure 3 is connected to the first surface 24 and / or the second surface 25.

[0090] In the embodiment of the present application, the first surface 24 and the second surface 25 of the carrier 2 are both arranged at an angle to the first direction x. When the limiting structure 3 is connected to the first surface 24, the limiting structure 3 will move closer to or away from the first surface 24 when elastic deformation occurs; when the limiting structure 3 is connected to the second surface 25, the abutment portion 32 of the limiting structure 3 will move along the second surface 25 when elastic deformation occurs.

[0091] In the embodiment of the present application, there may be multiple carriers 2, and the multiple carriers 2 may all be arranged on the first surface 24, or may all be arranged on the second surface 25, or the multiple carriers 2 may be arranged on the first surface 24 and the second surface 25 respectively.

[0092] In the battery module provided in the embodiment of the present application, the limiting structure 3 can be connected to different surfaces of the carrier 2. When the limiting structure 3 is connected to the first surface 24 of the carrier 2, the carrier 2 can provide limitation for the elastic deformation of the limiting structure 3. When the limiting structure 3 is connected to the second surface 25 of the carrier 2, the elastic deformation of the limiting structure 3 is freer.

[0093] Reference Figure 4 , Figure 5 and Figure 6 In some possible embodiments of the present application, the carrier 2 includes a clamping portion 26, which is arranged on at least one side of the carrier 2 along a third direction z, the clamping portion 26 is clamped to the end plate 1, and the limiting structure 3 is connected to the clamping portion 26; wherein the third direction z is arranged at an angle to the first direction x.

[0094] In the embodiment of the present application, the third direction z and the first direction x may form an acute angle, a right angle or an obtuse angle. For example, the third direction z and the first direction x form a right angle. In addition, the third direction z and the second direction y may be parallel or may be set at an angle. Optionally, the third direction z, the second direction y and the first direction x are perpendicular to each other.

[0095] In the embodiment of the present application, the clamping portion 26 can be a clamping protrusion 33 or an elastic buckle. The clamping portion 26 can limit the carrier 2 relative to the end plate 1 along the first direction x. The clamping portion 26 can also limit the carrier 2 relative to the end plate 1 along the second direction y and / or the third direction z. The embodiment of the present application does not impose any restrictions on this.

[0096] In the battery module provided in the embodiment of the present application, a clamping portion 26 is further provided on the carrier 2, which is clamped to the end plate 1 through the clamping portion 26 to improve the connection stability between the carrier 2 and the end plate 1, and the limiting structure 3 can be connected to the clamping portion 26 to make the structure more compact.

[0097] Reference Figure 5 and Figure 6 In some possible embodiments of the present application, a groove 27 is provided on the clamping portion 26 , and the limiting structure 3 is located in the groove 27 .

[0098] In the embodiment of the present application, the outline of the groove 27 can be square, circular, etc.; the limiting structure 3 can be connected to the bottom wall of the groove 27, or to the side wall of the groove 27, and the embodiment of the present application does not limit this. For example, the groove 27 is a groove body that penetrates the clamping portion 26 along the first direction x, and a reinforcing rib 21 is provided at one end of the groove 27 close to the end plate 1, and the limiting structure 3 is connected to the reinforcing rib 21.

[0099] In the embodiment of the present application, the limiting structure 3 is located in the groove 27, which means that the first connecting portion 31 is located in the groove 27. When the supporting member 2 is not connected to the end plate 1, the abutting portion 32 protrudes from the groove 27, so that when the supporting member 2 and the end plate 1 are connected, the abutting portion 32 can move toward the groove 27 to cause the first connecting portion 31 to produce elastic deformation. In this way, the surface of the clamping portion 26 provided with the groove 27 can also abut against the inner wall of the end plate 1 to further form a limit.

[0100] The battery module provided in the embodiment of the present application has a groove 27 provided on the clamping portion 26, and the groove 27 is used to accommodate the limiting structure 3, so as to further reduce the space occupied by the carrier 2 and the limiting structure 3. After the limiting structure 3 is elastically deformed, the clamping portion 26 can be conveniently clamped with the end plate 1, and the structure is more reasonable.

[0101] Reference Figure 3 and Figure 4 In some possible embodiments of the present application, there are multiple limiting structures 3, and the multiple limiting structures 3 are symmetrically distributed on opposite sides of the supporting member 2.

[0102] In an embodiment of the present application, multiple limiting structures 3 can limit the supporting member 2 along different directions. For example, some limiting structures 3 limit the supporting member 2 and the end plate 1 along the third direction z, and another part of the limiting structures 3 limits the supporting member 2 and the end plate 1 along the direction perpendicular to the third direction z.

[0103] In the embodiment of the present application, the multiple limiting structures 3 are symmetrically distributed on the opposite sides of the supporting member 2. The multiple limiting structures 3 can be divided into two groups, and the two groups of limiting structures 3 are respectively arranged on the opposite sides of the supporting member 2; or, each two of the multiple limiting structures 3 form a group, and the two limiting structures 3 in each group are respectively arranged on the opposite sides of the supporting member 2.

[0104] The battery module provided in the embodiment of the present application can, by setting a plurality of limiting structures 3, on the one hand, provide more limits to further improve the connection stability between the carrier 2 and the end plate 1; on the other hand, the limiting structures 3 arranged on the opposite side of the carrier 2 make the force on the carrier 2 more balanced.

[0105] Reference Figure 3 , Figure 5 and Figure 6 In a possible embodiment of the present application, the support member 2 is provided with a clamping portion 26 on both sides along the third direction z, and a limiting structure 3 is provided on both sides of the clamping portion 26 along the second direction y, and the abutting direction of the limiting structure 3 is set in a direction away from the corresponding clamping portion 26. The limiting structure 3 includes a first connecting portion 31 and an abutting portion 32, and a guiding inclined surface 34 is provided on the abutting portion 32. In the process of the support member 2 being inserted into the end plate 1, the guiding inclined surface 34 abuts against the end plate 1, so that the limiting structure 3 moves toward the corresponding clamping portion 26, so that the first connecting portion 31 is elastically deformed. When the support member 2 is inserted into the end plate 1, the elastic force of the first connecting portion 31 makes the abutting portion 32 have a tendency to move toward the end plate 1, thereby applying force to the end plate 1 to limit the shaking or skewing of the support member 2 relative to the end plate 1.

[0106] Reference Fig.10In some possible embodiments of the present application, the limiting structure 3 further includes a limiting protrusion 36 and a limiting groove 37, the limiting protrusion 36 is provided on the bearing member 2, the limiting groove 37 is provided on the end plate 1, and the limiting protrusion 36 and the limiting groove 37 are interference-fitted at least along the fourth direction; wherein the fourth direction is provided at an angle to the first direction. Of course, the limiting groove 37 can also be provided on the bearing member 2, and the limiting protrusion 36 can be provided on the end plate 1.

[0107] In the embodiment of the present application, the cross-sections of the limiting protrusion 36 and the limiting groove 37 may have a variety of possible shapes, such as semicircular, square, elliptical, triangular, etc. It is understandable that the cross-sectional shape of the limiting groove 37 should be compatible with the cross-sectional shape of the limiting protrusion 36, and the limiting protrusion 36 can be interference-fitted with the corresponding limiting groove 37 to achieve the limiting of the bearing member 2 and the end plate 1.

[0108] Reference Figure 3 , Figure 4 and Figure 5 In a possible embodiment of the present application, the cross-sections of the limiting groove 37 and the limiting protrusion 36 are both square, the limiting protrusion 36 can enter and exit the corresponding limiting groove 37 along the first direction x, and the radial dimension of the limiting protrusion 36 is slightly larger than the radial dimension of the limiting groove 37 within the tolerance range, and when the limiting protrusion 36 is connected to the corresponding limiting groove 37, the outer surface of the limiting protrusion 36 and the inner surface of the limiting groove 37 are interference fit.

[0109] For example, taking the case where the limiting protrusion 36 is provided on the supporting member 2 and the limiting groove 37 is provided on the end plate 1, the interference fit between the limiting protrusion 36 and the end plate 1 is as follows: the limiting protrusion 36 includes two limiting surfaces relatively arranged along the fourth direction, and the distance between the two relatively arranged limiting surfaces is greater than the distance between the two contact surfaces of the end plate 1 in contact with it, so that the limiting protrusion 36 can be interference fit with the corresponding limiting groove 37 to achieve a tight connection between the two.

[0110] In the embodiment of the present application, the fourth direction may be at an acute angle, a right angle, or an obtuse angle with the first direction x. For example, the fourth direction is at a right angle with the first direction x. In addition, the fourth direction may be parallel to the second direction y, or the fourth direction may be parallel to the third direction z. The embodiment of the present application does not limit this, that is, the abutting portion 32 and the limiting protrusion 36 may limit the bearing member 2 and the end plate 1 in the same or different directions.

[0111] Reference Figure 7 , Figure 8 and Fig. 9 The battery module further includes an output pole 5 and at least one battery cell 6 , wherein the at least one battery cell 6 is disposed in the housing 4 , the output pole 5 is electrically connected to the battery cell 6 , and the output pole 5 is disposed on the carrier 2 .

[0112] In an embodiment of the present application, the shell 4 is used to accommodate battery cells 6, temperature control components, etc. At least one battery cell 6 is stacked in the shell 4, and the battery cells 6 are electrically connected in series or in parallel, and finally electrically connected to the output pole 5 of the battery module.

[0113] In the embodiment of the present application, it can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel metal hydride battery, a nickel cadmium battery, a lead-acid battery, etc.; the battery cell 6 can be a cylindrical battery cell 6, a prismatic battery cell 6, a soft-pack battery cell 6 or a battery cell 6 of other shapes, and the prismatic battery cell 6 includes a square shell battery cell 6, a blade-shaped battery cell 6, and a polygonal prismatic battery. The polygonal prismatic battery is, for example, a hexagonal prismatic battery, etc., which is not limited in the embodiment of the present application.

[0114] It should be noted that the output pole 5 is a component for transmitting electric energy between the battery cell 6 and the conductive equipment outside the battery module. The output pole 5 does not limit the actual flow direction of the current. During the electric energy transmission process, the current can flow to the battery cell 6 or flow out of the battery cell 6.

[0115] Reference Figure 6 The embodiment of the present application also provides an output pole assembly, which includes a carrier 2 and a limiting structure 3, wherein the carrier 2 is used to be inserted into the end plate 1 of the battery module along a first direction x; the limiting structure 3 is arranged on the carrier 2, and the limiting structure 3 is used to abut against the end plate 1 along a second direction y, and the limiting structure 3 can at least be elastically deformed along the second direction y; wherein the second direction y is arranged at an angle to the first direction x.

[0116] Reference Fig.11 The present application also provides a battery, which includes a conductive member 8 and at least one battery module of the present application, wherein the conductive member 8 is used to electrically connect the output pole 5 of at least one battery module

[0117] In addition, the battery may also include a box body 7, which may be rectangular and used to accommodate a battery module. There may be multiple battery modules, which are stacked in the box body 7, and the output poles 5 of the battery modules are electrically connected in parallel and / or in series through a conductive member 8.

[0118] Reference Fig.12 The embodiment of the present application further provides an electrical device, which includes an electrical device 9 and a battery according to the embodiment of the present application, wherein a conductive member 8 of the battery is electrically connected to the electrical device 9.

[0119] In the embodiments of the present application, the electrical equipment may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0120] For example, the electrical equipment is an electric car, the electrical appliances 9 may be a driving motor, a control component, a vehicle air conditioner, a vehicle entertainment system, etc. in the electric car, and the battery is arranged on the bottom side of the vehicle body.

[0121] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery module, characterized in that: include: End plate; A bearing member, plugged into the end plate along a first direction; a limiting structure connected to one of the bearing member and the end plate and abutting against the other of the bearing member and the end plate along a second direction, and the limiting structure can be elastically deformed at least along the second direction; Wherein, the second direction is arranged at an angle with the first direction.

2. The battery module according to claim 1, characterized in that: The limiting structure includes a first connecting portion and an abutting portion arranged along the first direction, the first connecting portion is connected to the bearing member, and the abutting portion abuts against the end plate along the second direction.

3. The battery module according to claim 2, characterized in that: The abutting portion is provided with a protrusion, the protrusion protrudes from the abutting portion along the second direction, and the protrusion is located at a side of the abutting portion away from the bearing member, and the protrusion abuts against the end plate.

4. The battery module according to claim 3, characterized in that: The protrusion and / or the end plate are provided with a guiding slope, and the guiding slope is arranged at an acute angle with the first direction.

5. The battery module according to claim 2, characterized in that: The abutting portion includes an abutting surface, and the abutting surface is a plane, or the abutting surface is an outwardly convex arc surface.

6. The battery module according to claim 2, characterized in that: The first connection portion is connected to the bearing member via a reinforcing rib, and a length direction of the reinforcing rib is arranged at an angle to a length direction of the limiting structure.

7. The battery module according to any one of claims 2 to 6, characterized in that: The bearing member includes a second connecting portion and a bearing portion, the second connecting portion is plugged into the end plate, the bearing portion protrudes from the end plate, and the second direction is arranged at an angle to the protruding direction of the bearing portion.

8. The battery module according to claim 7, characterized in that: The abutting portion is located at an end of the limiting structure away from the bearing portion.

9. The battery module according to any one of claims 1 to 6, characterized in that: The bearing member includes a first surface perpendicular to the second direction and a second surface parallel to the second direction, and the limiting structure is connected to the first surface and / or the second surface.

10. The battery module according to any one of claims 1 to 6, characterized in that: The carrier includes a clamping portion, the clamping portion is arranged on at least one side of the carrier along the third direction, the clamping portion is clamped to the end plate, and the limiting structure is connected to the clamping portion; Wherein, the third direction is arranged at an angle with the first direction.

11. The battery module according to claim 10, characterized in that: The clamping portion is provided with a groove, and the limiting structure is located in the groove.

12. The battery module according to any one of claims 1 to 6, characterized in that: There are multiple limiting structures, and the multiple limiting structures are symmetrically distributed on two opposite sides of the bearing component.

13. The battery module according to any one of claims 1 to 6, characterized in that: The limiting structure further includes a limiting protrusion and a limiting groove, wherein the limiting protrusion is arranged on the bearing member, the limiting groove is arranged on the end plate, and the limiting protrusion and the limiting groove are interference-fitted at least along the fourth direction; Wherein, the fourth direction is arranged at an angle with the first direction.

14. An output pole component, characterized in that: include: A carrier, used for being plugged into an end plate of a battery module along a first direction; a limiting structure, arranged on the bearing member, the limiting structure being used to abut against the end plate along a second direction, and the limiting structure being elastically deformable at least along the second direction; Wherein, the second direction is arranged at an angle with the first direction.

15. A battery, characterized in that: include: At least one battery module according to any one of claims 1 to 13, comprising an output pole, wherein the output pole is arranged on the carrier; A conductive member is used to electrically connect the output pole of at least one of the battery modules.

16. An electrical equipment, characterized in that: include: Electrical appliances; The battery according to claim 15, wherein the conductive member of the battery is electrically connected to the electrical appliance.

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