Battery pack and electric device with same

Abstract

The utility model discloses a battery pack and electric device with the same, the battery pack comprises a shell and a battery module, an accommodating cavity is formed in the shell, a pole is arranged on the shell, the battery module is arranged in the accommodating cavity and is electrically connected with the pole through a connecting assembly, the connecting assembly comprises a first plug connector, a second plug connector and a conductive elastic piece, one end of the first plug connector is plugged and matched in the second plug connector and is electrically connected with the second plug connector, the first plug connector and the second plug connector are electrically connected with the pole and the battery module respectively, and a first conductive elastic part of the conductive elastic parts is connected between the periphery of the first plug connector and the second plug connector; the second conductive elastic piece is connected between one end of the first plug connector and the second plug connector, and at least part of the conductive elastic piece protrudes towards the first plug connector or the second plug connector. According to the battery pack provided by the embodiment of the utility model, the connection difficulty of the battery module and the pole can be reduced, and the connection quality of the battery module and the pole can be ensured to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery pack and an electric device having the same. Background Art

[0002] In existing battery packs, the poles of the battery pack and the positive and negative poles of the battery module are usually connected by wires and bolts. During the connection process, a gap needs to be opened in the upper cover of the battery pack, and a wrench needs to be manually inserted into the lower part of the accommodating cavity in the battery pack to tighten the bolts. This process is time-consuming and difficult to operate, which increases the difficulty of manufacturing the battery pack and reduces the production efficiency of the battery pack. In addition, the position of the redundant wires cannot be controlled after connection. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a battery pack, which uses a quick-insert method to connect the pole and the battery module, making the connection between the pole and the battery module more convenient, reducing the difficulty of assembling the battery pack, and improving the production efficiency of the battery pack, solving the technical problems of the difficulty of manufacturing the battery pack and the low production efficiency in the prior art.

[0004] The utility model also aims to provide an electrical device having the battery pack.

[0005] According to an embodiment of the utility model, the battery pack includes: a shell, a accommodating cavity is formed in the shell, and a pole is provided on the shell; a battery module, the battery module is arranged in the accommodating cavity and is electrically connected to the pole through a connecting component; wherein the connecting component includes a first connector, a second connector and a conductive elastic member, one end of the first connector is plugged into the second connector and forms an electrical connection with the second connector, one of the first connector and the second connector is electrically connected to the pole, and the other is electrically connected to the battery module, the conductive elastic member includes a first conductive elastic member and a second conductive elastic member, the first conductive elastic member is connected between the outer periphery of the first connector and the second connector, the second conductive elastic member is connected between the one end of the first connector and the second connector, and at least parts of the first conductive elastic member and the second conductive elastic member protrude toward the first connector or the second connector.

[0006] According to the battery pack of the embodiment of the utility model, the battery module is electrically connected to the pole by using the first plug-in connector and the second plug-in connector, so that while realizing the matching connection between the battery module and the pole, the connection difficulty between the battery module and the pole can be reduced, the connection efficiency can be improved, and thus the assembly efficiency of the battery pack can be improved; at the same time, by arranging the first conductive elastic member between the outer periphery of the first plug-in connector and the second plug-in connector and arranging the second conductive elastic member between one end of the first plug-in connector and the second plug-in connector, and arranging the first conductive elastic member and at least part of the first conductive elastic member to protrude toward the first plug-in connector or the second plug-in connector, the conductive elastic member can be used to increase the contact area between the first plug-in connector and the second plug-in connector, so that the connection component can fully conduct electricity through the current, thereby ensuring the connection quality between the battery module and the pole, and improving the working performance of the battery pack. In other words, the battery pack of the present application is easy to assemble and has excellent working performance.

[0007] In some embodiments, the first connector includes a pin, and the second connector includes a socket. The socket is provided with a plug-in cavity with an open end, and the pin is plugged into the plug-in cavity through the open end.

[0008] In some embodiments, the first conductive elastic member is fixedly connected to the inner circumferential wall of the plug-in cavity and extends along the inner circumferential wall of the plug-in cavity, so that the first conductive elastic member is formed into a cylindrical shape, and the plug pin is plugged into the first conductive elastic member, and at least a portion of the first conductive elastic member protrudes toward the plug pin.

[0009] In some embodiments, the first conductive elastic member includes a first elastic sheet and two first circular rings, the two first circular rings are spaced apart in the axial direction of the plug-in cavity and are respectively fixedly connected to the inner circumferential wall of the plug-in cavity, the first elastic sheet is connected between the two first circular rings and extends along the circumference of the plug-in pin, and at least a portion of the first elastic sheet protrudes toward the plug-in pin.

[0010] In some embodiments, the first elastic sheets include a plurality of first elastic sheets, the plurality of first elastic sheets are arranged along the circumference of the insertion pin, and at least parts of two adjacent first elastic sheets are spaced apart in the circumference of the insertion pin.

[0011] In some embodiments, the second conductive elastic member includes a second elastic sheet and a second circular ring, the second circular ring is fixedly connected to the end wall of the plug-in cavity facing the opening, the second elastic sheet is formed as an arc-shaped sheet, the arc-shaped sheet is connected to the second circular ring and protrudes toward the opening, and at least a portion of the arc-shaped sheet is spaced apart from the second circular ring.

[0012] In some embodiments, a first threaded structure is provided at one end of the first connector facing the pole, and the first connector is connected to the pole via the first threaded structure; the second connector also includes an insulating seat, the insulating seat is fixedly arranged in the accommodating cavity, and a second threaded structure is provided at one end of the socket facing the insulating seat, the socket is connected to the insulating seat via the second threaded structure, and the socket is electrically connected to the battery module via a wire.

[0013] In some embodiments, a fastening portion is provided on the outer periphery of the socket, and the fastening portion is a polygonal structure.

[0014] In some embodiments, the pole includes a first pole and a second pole, the connecting component includes multiple poles, the first pole is connected to the first electrode of the battery module through one of the multiple connecting components, and the second pole is connected to the second electrode of the battery module through another of the multiple connecting components.

[0015] The electric device according to the embodiment of the utility model includes the aforementioned battery pack.

[0016] According to the electric device of the embodiment of the utility model, by adopting the aforementioned battery pack, while ensuring the working performance of the electric device, the manufacturing difficulty of the electric device can be reduced and the production efficiency of the electric device can be improved.

[0017] Additional aspects and advantages of the present invention will become apparent from the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 Schematic diagram of a battery pack according to some embodiments of the present invention.

[0020] Figure 2 This is a schematic diagram of a battery pack without an upper cover according to some embodiments of the present invention.

[0021] Figure 3 It is a schematic diagram of the connection components, poles and wires of some embodiments of the utility model.

[0022] Figure 4 It is an exploded view between the socket and the conductive elastic member in some embodiments of the utility model.

[0023] Figure 5 Schematic diagram of the first connector of some embodiments of the present invention.

[0024] Figure 6 Schematic diagram of an insulating seat according to some embodiments of the utility model.

[0025] Reference numerals:

[0026] 1000, battery pack;

[0027] 100, housing; 110, accommodating chamber; 120, shell; 130, upper cover; 140, fastener;

[0028] 200. Battery module;

[0029] 300, pole; 310, first pole; 320, second pole;

[0030] 400, connection components;

[0031] 410, first connector; 411, plug pin; 412, first thread structure;

[0032] 420, second connector;

[0033] 421, socket;

[0034] 4211, plug-in cavity; 4212, open;

[0035] 4213, second thread structure;

[0036] 4214, fastening part;

[0037] 422, insulation seat;

[0038] 430, conductive elastic member;

[0039] 431, a first elastic sheet; 432, a first circular ring; 433, a second circular ring;

[0040] 434, a first conductive elastic member; 435, a second conductive elastic member; 436, a second elastic sheet;

[0041] 500. Wire. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] The battery pack 1000 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0045] Combination Figure 1 and Figure 2 As shown, the battery pack 1000 according to the embodiment of the present invention includes: a housing 100 and a battery module 200 .

[0046] Among them, combined Figure 1 and Figure 2 As shown, a housing 100 is formed with a receiving cavity 110, and a pole 300 is provided on the housing 100. The pole 300 is mainly used to lead out the current of the battery module 200 provided in the receiving cavity 110 to ensure the working performance of the battery pack 1000.

[0047] In some embodiments, in combination Figure 1 and Figure 2 As shown, the housing 100 includes a shell 120 and an upper cover 130, at least part of the structures of the shell 120 and the upper cover 130 protrude in a direction away from each other, and the upper cover 130 covers the shell 120 and is fixedly connected to the shell 120 through fasteners 140, thereby facilitating the formation of the housing 100 with the accommodating cavity 110 and reducing the difficulty of molding the housing 100.

[0048] It should be noted that the fastener 140 mentioned above can be a fastening bolt, a fastening screw, etc., to ensure the connection strength between the shell 120 and the upper cover 130, and to make the shell 120 and the upper cover 130 form a detachable connection, thereby reducing the difficulty of assembling the battery pack 1000.

[0049] In some embodiments, the pole 300 is fixedly connected to the upper cover 130 , so as to realize the arrangement of the pole 300 on the housing 100 and reduce the difficulty of matching the pole 300 with the housing 100 .

[0050] Combination Figure 1 and Figure 2As shown, the battery module 200 is disposed in the accommodating cavity 110 and is electrically connected to the pole 300 through the connecting assembly 400. Thus, the pole 300 is used to lead out the current of the battery module 200 disposed in the accommodating cavity 110, thereby ensuring the working performance of the battery pack 1000.

[0051] At the same time, by disposing the battery module 200 in the accommodating cavity 110, that is, disposing the battery module 200 in the outer shell 100, on the first hand, the outer shell 100 can be used to protect the battery module 200 and extend the service life of the battery module 200; on the second hand, the outer shell 100 can be used to support the battery module 200 and improve the position stability of the battery module 200; on the third hand, the outer shell 100 can also be used to shield the battery module 200 to prevent the user from accidentally touching the battery module 200, thereby ensuring the safety of the battery module 200.

[0052] Combination Figure 2 , Figure 3 and Figure 4 As shown, the connecting component 400 includes a first connector 410, a second connector 420 and a conductive elastic member 430, one end of the first connector 410 is plugged into the second connector 420 and electrically connected to the second connector 420, one of the first connector 410 and the second connector 420 is electrically connected to the pole 300, and the other is electrically connected to the battery module 200, the conductive elastic member 430 includes a first conductive elastic member 434 and a second conductive elastic member 435, the first conductive elastic member 434 is connected between the periphery of the first connector 410 and the second connector 420, the second conductive elastic member 435 is connected between one end of the first connector 410 and the second connector 420, and at least parts of the first conductive elastic member 434 and the second conductive elastic member 435 protrude toward the first connector 410 or the second connector 420.

[0053] Among them, one of the first connector 410 and the second connector 420 is electrically connected to the pole 300, and the other is electrically connected to the battery module 200, which means that when the first connector 410 is electrically connected to the pole 300, the second connector 420 is electrically connected to the battery module 200. Correspondingly, when the second connector 420 is electrically connected to the pole 300, the first connector 410 is electrically connected to the battery module 200. Because one end of the first connector 410 is plugged into the second connector 420 and electrically connected to the second connector 420, when the first connector 410 and the second connector 420 are plugged into each other, an electrical connection between the pole 300 and the battery module 200 can be formed, thereby ensuring the working performance of the battery pack 1000 and reducing the difficulty of electrical connection between the pole 300 and the battery module 200.

[0054] At the same time, the above connection method can also ensure the accuracy of the connection between the pole 300 and the battery module 200.

[0055] It is worth noting that since the pole 300 is arranged on the outer shell 100, the electrical connection between the pole 300 and the battery module 200 can be achieved through the above-mentioned arrangement during the assembly process of the outer shell 100, eliminating the need to manually insert a wrench into the interior of the battery pack 1000 to tighten the bolts between the pole 300 and the battery module 200, thereby reducing the difficulty of assembling the battery pack 1000 and improving the production efficiency of the battery pack 1000.

[0056] In addition, the connection assembly 400 is further provided with a conductive elastic member 430, and the conductive elastic member 430 includes a first conductive elastic member 434 and a second conductive elastic member 435. By connecting the first conductive elastic member 434 between the periphery of the first plug connector 410 and the second plug connector 420 and connecting the second conductive elastic member 435 between one end of the first plug connector 410 and the second plug connector 420, when one end of the first plug connector 410 is plugged into the second plug connector 420, the outer peripheral wall of the first plug connector 410 and the second plug connector 420 can be made to be A conductive elastic member 430 is provided between the end wall and the second connector 420. Since at least part of the first conductive elastic member 434 and the second conductive elastic member 435 protrude toward the first connector 410 or the second connector 420, the conductive elastic member 430 can be utilized to increase the contact area between the first connector 410 and the second connector 420. This ensures the electrical connection quality between the pole 300 and the battery module 200 while enabling the connection assembly 400 to fully conduct current, thereby improving the working performance of the battery pack 1000.

[0057] Among them, the first conductive elastic member 434 and the second conductive elastic member 435 cooperate to realize the simultaneous arrangement of the conductive elastic member 430 between the peripheral wall of the first connector 410 and the second connector 420 and between the end wall of the first connector 410 and the second connector 420, so as to maximize the contact area between the first connector 410 and the second connector 420, so that the connection component 400 can fully conduct current.

[0058] It should be noted that, in some embodiments, when the first conductive elastic member 434 is fixedly connected to the first plug connector 410, the first conductive elastic member 434 protrudes toward the second plug connector 420; when the first conductive elastic member 434 is fixedly connected to the second plug connector 420, the first conductive elastic member 434 protrudes toward the first plug connector 410. In this way, the first conductive elastic member 434 is used to increase the contact area between the first plug connector 410 and the second plug connector 420.

[0059] Correspondingly, when the second conductive elastic member 435 is fixedly connected to the first plug connector 410, the second conductive elastic member 435 protrudes toward the second plug connector 420; when the second conductive elastic member 435 is fixedly connected to the second plug connector 420, the second conductive elastic member 435 protrudes toward the first plug connector 410. In this way, the contact area between the first plug connector 410 and the second plug connector 420 is increased by using the second conductive elastic member 435.

[0060] It can be seen from the above structure that the battery pack 1000 of the embodiment of the utility model realizes the plug-in cooperation between the pole 300 and the battery module 200 by setting the first plug-in component 410 and the second plug-in component 420, eliminating the need to manually insert a wrench into the interior of the battery pack 1000 to tighten the bolts between the pole 300 and the battery module 200, thereby reducing the difficulty of connecting the pole 300 and the battery module 200, thereby reducing the difficulty of assembling the battery pack 1000 and improving the production efficiency of the battery pack 1000.

[0061] At the same time, by disposing a first conductive elastic member 434 between the outer periphery of the first connector 410 and the second connector 420 and disposing a second conductive elastic member 435 between one end of the first connector 410 and the second connector 420, the first conductive elastic member 434 and the second conductive elastic member 435 can be used to cooperate to increase the contact area between the first connector 410 and the second connector 420, thereby ensuring the electrical connection quality between the pole 300 and the battery module 200, and enabling the connection assembly 400 to fully conduct current, thereby improving the working performance of the battery pack 1000.

[0062] In other words, the battery pack 1000 of the present application is easy to assemble and has excellent working performance.

[0063] It can be understood that compared with the prior art in which a wrench is manually inserted into the interior of the battery pack 1000 to tighten the bolts between the pole 300 and the battery module 200, the present application can achieve electrical connection between the pole 300 and the battery module 200 during the assembly process of the battery pack 1000, reducing the difficulty of connecting the pole 300 and the battery module 200. At the same time, a conductive elastic member 430 is provided to increase the contact area between the first connector 410 and the second connector 420, thereby ensuring the quality of the electrical connection between the pole 300 and the battery module 200, and enabling the connection assembly 400 to fully conduct current, thereby ensuring the working performance of the battery pack 1000.

[0064] In the description of the present utility model, features defined as “first” or “second” may explicitly or implicitly include one or more such features, and are used to distinguish and describe the features, without any distinction in order or importance.

[0065] In some embodiments, the first connector 410, the second connector 420 and the conductive elastic member 430 are all made of metal materials, so that the first connector 410, the second connector 420 and the conductive elastic member 430 all have conductive properties, so that one of the first connector 410 and the second connector 420 can be electrically connected to the pole 300 and the other of the first connector 410 and the second connector 420 can be electrically connected to the battery module 200. After the first connector 410 and the second connector 420 are plugged together, the electrical connection between the pole 300 and the battery module 200 can be achieved. At the same time, when the conductive elastic member 430 is arranged between the first connector 410 and the second connector 420, the electrical connection quality between the pole 300 and the battery module 200 can be guaranteed, and the connection component 400 can be fully conductive to ensure overcurrent, thereby ensuring the working performance of the battery pack 1000.

[0066] In some embodiments, in combination Figure 3 , Figure 4 and Figure 5 As shown, the first connector 410 includes a pin 411, and the second connector 420 includes a socket 421. The socket 421 is provided with a plug cavity 4211 with an open end 4212, and the pin 411 is plugged into the plug cavity 4211 through the open end 4212. The plug-in fit of the first connector 410 and the second connector 420 is achieved, and then the electrical connection between the pole 300 and the battery module 200 is achieved, the working performance of the battery pack 1000 is ensured, and the difficulty of the electrical connection between the pole 300 and the battery module 200 is reduced.

[0067] Of course, in some other embodiments, the first connector 410 may include a socket 421 , and the second connector 420 may include a pin 411 .

[0068] In some embodiments, in combination Figure 3 , Figure 4 and Figure 5As shown, the first conductive elastic member 434 is fixedly connected to the inner peripheral wall of the plug-in cavity 4211 and extends along the inner peripheral wall of the plug-in cavity 4211, so that the first conductive elastic member 434 is formed into a cylindrical shape, and the plug pin 411 is plugged with the first conductive elastic member 434, and at least part of the first conductive elastic member 434 protrudes toward the plug pin 411. Here, it means that the first conductive elastic member 434 is arranged to extend along the inner peripheral wall of the plug-in cavity 4211, so that the first conductive elastic member 434 can be formed into a cylindrical shape. Since the first conductive elastic member 434 is fixedly connected to the inner peripheral wall of the plug-in cavity 4211, when the plug pin 411 is plugged with the first conductive elastic member 434, the plug-in fit of the first plug connector 410 and the second plug connector 420 can be achieved, reducing the plug-in fit difficulty of the first plug connector 410 and the second plug connector 420, and achieving the first conductive elastic member 4 34 is connected between the outer periphery of the first connector 410 and the second connector 420. At the same time, because at least a portion of the first conductive elastic member 434 protrudes toward the pin 411, the first conductive elastic member 434 protrudes toward the first connector 410. It is convenient to use the first conductive elastic member 434 to increase the contact area between the first connector 410 and the second connector 420, thereby ensuring the electrical connection quality between the pole 300 and the battery module 200, and at the same time allowing the connection component 400 to fully conduct current and improve the working performance of the battery pack 1000.

[0069] It should be noted that, by fixedly connecting the first conductive elastic member 434 to the inner circumferential wall of the plug-in cavity 4211, it is possible to utilize the inner circumferential wall of the plug-in cavity 4211 to support the first conductive elastic member 434, that is, utilize the second plug-in connector 420 to support the first conductive elastic member 434, thereby improving the position stability of the first conductive elastic member 434. In this way, when one end of the first plug-in connector 410 is plugged into the second plug-in connector 420, displacement of the first conductive elastic member 434 along the plug-in direction of the first plug-in connector 410 can be avoided, thereby enabling the first conductive elastic member 434 to be stably connected between the outer periphery of the first plug-in connector 410 and the second plug-in connector 420, thereby facilitating the use of the first conductive elastic member 434 to increase the contact area between the first plug-in connector 410 and the second plug-in connector 420, thereby ensuring the electrical connection quality between the pole 300 and the battery module 200.

[0070] The fixed connection between the first conductive elastic member 434 and the inner peripheral wall of the plug-in cavity 4211 may be bonding, welding or abutment.

[0071] At the same time, by arranging the first conductive elastic member 434 to extend along the inner circumferential wall of the plug-in cavity 4211, when the plug pin 411 is plugged in with the first conductive elastic member 434, the circumferential coverage area of ​​the plug pin 411 can be ensured, thereby facilitating the use of the first conductive elastic member 434 to effectively increase the contact area between the first plug connector 410 and the second plug connector 420, so that the connection assembly 400 can fully conduct current.

[0072] In some embodiments, in combination Figure 3 , Figure 4 and Figure 5 As shown, the first conductive elastic member 434 includes a first elastic sheet 431 and two first rings 432. The two first rings 432 are spaced apart in the axial direction of the plug-in cavity 4211 and are respectively fixedly connected to the inner circumferential wall of the plug-in cavity 4211. The first elastic sheet 431 is connected between the two first rings 432 and extends along the circumferential direction of the plug pin 411. At least part of the first elastic sheet 431 protrudes toward the plug pin 411. Among them, by setting the first ring 432 to be fixedly connected to the inner wall of the plug-in cavity 4211, while realizing the fixed connection between the first conductive elastic member 434 and the inner wall of the plug-in cavity 4211, it is also possible to avoid the first elastic sheet 431 from forming a fixed connection with the inner wall of the plug-in cavity 4211. In this way, when one end of the first connector 410 is plugged into and fitted in the second connector 420, the first elastic sheet 431 can be deformed under the action of external force, so that one end of the first connector 410 can be effectively plugged into and fitted in the second connector 420.

[0073] At the same time, by providing the first elastic sheet 431, it can also be ensured that the first elastic sheet 431 can be deformed under the action of external force and can restore its original shape after the external force disappears. In this way, after the pin 411 is inserted into the plug cavity 4211, the first elastic sheet 431 can effectively stop on the pin 411, so as to increase the contact area between the first connector 410 and the second connector 420 by using the conductive elastic member 430.

[0074] The fixed connection between the first circular ring 432 and the inner wall of the insertion cavity 4211 may be welding, bonding or abutting, etc.; the connection between the first elastic sheet 431 and the two first circular rings 432 may be welding, bonding or integrally formed.

[0075] At the same time, by setting two first rings 432 and setting the two first rings 432 to be spaced apart in the axial direction of the plug-in cavity 4211, it is convenient to utilize the two first rings 432 to cooperate with the first elastic sheet 431 to improve the position stability of the first elastic sheet 431. Since the first elastic sheet 431 extends along the circumference of the plug pin 411 and at least part of the first elastic sheet 431 protrudes toward the plug pin 411, the first conductive elastic member 434 can be used to increase the contact area between the first connector 410 and the second connector 420, thereby ensuring the electrical connection quality between the pole 300 and the battery module 200.

[0076] In some embodiments, in combination Figure 3 , Figure 4 and Figure 5 As shown, the first elastic sheet 431 includes a plurality of first elastic sheets 431, which are arranged along the circumference of the plug pin 411, and at least parts of two adjacent first elastic sheets 431 are arranged at intervals in the circumference of the plug pin 411. In this way, the first elastic sheet 431 can be arranged to extend along the circumference of the plug pin 411. At the same time, because at least parts of two adjacent first elastic sheets 431 are arranged at intervals in the circumference of the plug pin 411, the first elastic sheet 431 can be effectively deformed under the action of external force, so that one end of the first connector 410 can be effectively plugged into the second connector 420, and the first elastic sheet 431 can always protrude toward the plug pin 411 under the action of its own elastic restoring force, so as to achieve the stop fit between the first elastic sheet 431 and the plug pin 411, so as to ensure the contact area between the first connector 410 and the second connector 420.

[0077] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0078] Of course, in some other embodiments, the first elastic sheet 431 may also include only one, and one first elastic sheet 431 extends along the circumference of the plug pin 411 and is arranged around the outer circumference of the plug pin 411. In this way, the first conductive elastic member 434 can be used to increase the contact area between the first connector 410 and the second connector 420, thereby ensuring the electrical connection quality between the pole 300 and the battery module 200.

[0079] Of course, in other embodiments, the first ring 432 of the first conductive elastic member 434 may also be fixedly connected to the outer peripheral wall of the pin 411. In this case, at least a portion of the first elastic sheet 431 protrudes toward the inner peripheral wall of the plug cavity 4211. In this way, the first conductive elastic member 434 may be used to increase the contact area between the first connector 410 and the second connector 420, so that the connection assembly 400 can fully conduct current.

[0080] In some embodiments, Figure 4As shown, the axial ends of the multiple first elastic sheets 431 are connected by a first ring 432, so that the multiple first elastic sheets 431 form an integral piece, which reduces the difficulty of fixing the multiple first elastic sheets 431 and is beneficial to improving the position stability of the multiple first elastic sheets 431, thereby ensuring the working performance of the multiple first elastic sheets 431.

[0081] In some embodiments, Figure 4 As shown, the plurality of first elastic sheets 431 are sequentially arranged along the circumference of the plug pin 411 , so that the plurality of first elastic sheets 431 form lantern-shaped elastic sheets along the circumference of the plug pin 411 , which facilitates the introduction, locking and overcurrent conduction of the plug pin 411 .

[0082] In some embodiments, in combination Figure 3 , Figure 4 and Figure 5 As shown, the second conductive elastic member 435 includes a second elastic sheet 436 and a second ring 433. The second ring 433 is fixedly connected to the end wall of the plug-in cavity 4211 facing the opening 4212. The second elastic sheet 436 is formed as an arc-shaped sheet, which is connected to the second ring 433 and protrudes toward the opening 4212. At least part of the arc-shaped sheet is spaced apart from the second ring 433. Among them, by setting the second ring 433 to be fixedly connected to the end wall of the plug-in cavity 4211 facing the opening 4212 and connecting the second elastic sheet 436 to the second ring 433, when one end of the first connector 410 is plugged into the second connector 420, a conductive elastic member 430 can be set between the end wall of the first connector 410 and the second connector 420, so that the conductive elastic member 430 can be used to increase the contact area between the first connector 410 and the second connector 420, thereby ensuring the electrical connection quality between the pole 300 and the battery module 200.

[0083] At the same time, by arranging the second elastic piece 436 to protrude toward the opening 4212 , it can be ensured that the second elastic piece 436 can effectively stop on the first connector 410 , so that the pin 411 and the socket 421 can be fully in contact.

[0084] In addition, by arranging at least part of the arc-shaped piece and the second ring 433 at intervals, it can also be ensured that the second elastic piece 436 can be deformed under the action of external force and can restore its original shape after the external force disappears. In this way, after the pin 411 is inserted into the plug cavity 4211, the second elastic piece 436 can effectively stop on the pin 411, so as to increase the contact area between the first connector 410 and the second connector 420 by utilizing the conductive elastic member 430.

[0085] Among them, the fixed connection between the second ring 433 and the end wall of the plug-in cavity 4211 can be welding, bonding or abutment, etc.; the connection between the arc piece and the second ring 433 can be welding, bonding or integrally formed. By connecting the arc piece to the second ring 433, the difficulty of fixing the arc piece can be reduced, and the position stability of the arc piece can be improved, thereby ensuring the working performance of the arc piece, and further ensuring that the pin 411 and the socket 421 can be fully in contact.

[0086] Of course, in other embodiments, the second ring 433 of the second conductive elastic member 435 may also be fixedly connected to one end of the pin 411. In this case, at least a portion of the second elastic sheet 436 protrudes toward the end wall of the plug-in cavity 4211 facing the opening 4212. In this way, the second conductive elastic member 435 can be used to increase the contact area between the first connector 410 and the second connector 420, so that the connecting assembly 400 can fully conduct current.

[0087] In some embodiments, in combination Figure 2 and Figure 3 As shown, the first connector 410 is electrically connected to the pole 300, and the second connector 420 is electrically connected to the battery module 200 through the wire 500. After the first connector 410 and the second connector 420 are plugged in and matched, the pole 300 and the battery module 200 can be electrically connected, thereby ensuring the working performance of the battery pack 1000 and reducing the difficulty of electrical connection between the pole 300 and the battery module 200.

[0088] In some embodiments, the pole 300 is fixedly connected to the upper cover 130, the first connector 410 is electrically connected to the pole 300, and the second connector 420 is disposed in the shell 120 and electrically connected to the battery module 200 through the wire 500. In this way, when the upper cover 130 is installed relative to the shell 120, the first connector 410 can be plugged into the second connector 420 to achieve electrical connection between the pole 300 and the battery module 200, simplifying the connection steps between the pole 300 and the battery module 200, reducing the connection cost, and improving the connection efficiency.

[0089] In some embodiments, in combination Figure 3 and Figure 5 As shown, the first connector 410 is provided with a first thread structure 412 at one end facing the pole 300, and the first connector 410 is connected to the pole 300 through the first thread structure 412. Thus, the first connector 410 is electrically connected to the pole 300, which facilitates the use of the first connector 410 to electrically connect the pole 300 to the battery module 200, reduces the difficulty of connecting the pole 300 to the battery module 200, and also reduces the difficulty of connecting the first connector 410 to the pole 300, and ensures the connection quality of the first connector 410 to the pole 300.

[0090] That is to say, the first connector 410 of the present application is threadedly connected to the pole 300, which facilitates the fixed connection between the first connector 410 and the pole 300, so that the first connector 410 and the upper cover 130 of the outer shell 100 form a whole. In this way, during the assembly process of the upper cover 130 and the shell 120, the first connector 410 can be inserted into the second connector 420, which simplifies the connection steps between the pole 300 and the battery module 200, reduces the connection cost, and improves the connection efficiency.

[0091] In some embodiments, the first threaded structure 412 provided at one end of the first connector 410 facing the pole 300 is an external thread, and the pole 300 is provided with an internal thread that threadably cooperates with the first threaded structure 412. The internal thread cooperates with the external thread, thereby achieving threaded connection of the first connector 410 to the pole 300, reducing the difficulty of connecting the first connector 410 to the pole 300 and ensuring the connection quality of the first connector 410 to the pole 300.

[0092] Optionally, combined Figure 3 , Figure 4 and Figure 6 As shown, the second connector 420 also includes an insulating seat 422, which is fixed to the accommodating cavity 110, and a second threaded structure 4213 is provided at one end of the socket 421 facing the insulating seat 422. The socket 421 is connected to the insulating seat 422 via the second threaded structure 4213, and the wire 500 is electrically connected to the socket 421. Thereby, the socket 421 is electrically connected to the battery module 200 through the wire 500, wherein, by setting a second threaded structure 4213 at one end of the socket 421 facing the insulating seat 422, the socket 421 is connected to the insulating seat 422 through the second threaded structure 4213 to achieve the matching connection between the socket 421 and the insulating seat 422, reduce the connection difficulty between the socket 421 and the insulating seat 422, and ensure the connection quality between the socket 421 and the insulating seat 422, facilitate the use of the insulating seat 422 to support the socket 421, improve the position stability of the socket 421, thereby ensuring the electrical connection quality between the wire 500 and the socket 421, facilitate the use of the second connector 420 to achieve the electrical connection between the pole 300 and the battery module 200, and reduce the connection difficulty between the pole 300 and the battery module 200.

[0093] That is to say, the socket 421 of the present application is threadedly connected to the insulating seat 422 .

[0094] At the same time, the insulating seat 422 can be provided to prevent the socket 421 from forming an electrical connection with other structural components in the accommodating cavity 110, so as to ensure the working performance of the battery pack 1000.

[0095] In some embodiments, a second thread structure 4213 is provided as an external thread on one end of the socket 421 facing the insulating seat 422, and an internal thread that threadably cooperates with the second thread structure 4213 is provided on the insulating seat 422. The internal thread cooperates with the external thread, thereby achieving threaded connection of the socket 421 to the insulating seat 422, reducing the difficulty of connecting the socket 421 and the insulating seat 422, and ensuring the connection quality of the socket 421 and the insulating seat 422.

[0096] In some embodiments, the insulating seat 422 is fixedly connected to the shell 120 of the outer shell 100, so that the shell 120 can be used to support the insulating seat 422, thereby improving the position stability of the insulating seat 422, and then improving the position stability of the socket 421, facilitating the plug-in fit between the pin 411 and the socket 421, thereby reducing the difficulty of electrical connection between the pole 300 and the battery module 200.

[0097] The fixed connection between the insulating seat 422 and the housing 120 mentioned here may be welding, bonding or bolt connection.

[0098] In some embodiments, Figure 4 As shown, a fastening portion 4214 is provided on the outer periphery of the socket 421, and the fastening portion 4214 is a polygonal structure. In this way, during the connection process between the socket 421 and the insulating seat 422, the fastening portion 4214 can be used to rotate the socket 421 to further reduce the connection difficulty between the socket 421 and the insulating seat 422 and ensure the threaded connection quality of the socket 421 and the insulating seat 422.

[0099] The fastening portion 4214 is formed as a polygonal fixing structure, which can also facilitate the tightening of the socket 421 and control the torque, thereby ensuring the quality of the threaded connection between the socket 421 and the insulating seat 422 .

[0100] In some embodiments, the fastening portion 4214 is formed as an outer square corner, an outer hexagon corner, etc.

[0101] In a specific example, the fastening portion 4214 is formed as an external hexagonal fixing structure.

[0102] Specifically, during the connection between the socket 421 and the insulating seat 422, the wire 500 can be first placed on the insulating seat 422 and corresponding to the installation position of the socket 421. The wire 500 is provided with an avoidance hole, and the socket 421 is provided with one end of a second threaded structure 4213 that passes through the avoidance hole and extends into the insulating seat 422. Then, the socket 421 is threadedly fixed and tightened using the fastening part 4214 to achieve threaded connection of the socket 421 to the insulating seat 422.

[0103] In some embodiments, Figure 1As shown, the pole 300 includes a first pole 310 and a second pole 320, and the connecting assembly 400 includes a plurality of poles. The first pole 310 is connected to the first electrode of the battery module 200 through one of the plurality of connecting assemblies 400, and the second pole 320 is connected to the second electrode of the battery module 200 through another of the plurality of connecting assemblies 400. In other words, the battery module 200 has a first electrode and a second electrode, and the first pole 310 and the second pole 320 are electrically connected to the first electrode or the second electrode through the connecting assembly 400, respectively, so as to facilitate the current extraction of the battery module 200 and ensure the working performance of the battery module 200, that is, to ensure the working performance of the battery pack 1000.

[0104] In some embodiments, one of the first electrode and the second electrode is formed as the positive electrode of the battery module 200, and the other of the first electrode and the second electrode is formed as the negative electrode of the battery module 200, so that the electrode 300 electrically connected to the positive electrode is formed as the positive electrode of the battery pack 1000, and the electrode 300 electrically connected to the negative electrode is formed as the negative electrode of the battery pack 1000. That is to say, one of the first electrode 310 and the second electrode 320 is formed as the positive electrode of the battery pack 1000, and the other is formed as the negative electrode of the battery pack 1000, so as to ensure the working performance of the battery pack 1000.

[0105] The electrical device of the embodiment of the utility model is described below.

[0106] An electric device according to an embodiment of the present invention includes: a battery pack 1000 .

[0107] The battery pack 1000 is the aforementioned battery pack 1000 , and the specific structure of the battery pack 1000 is not described in detail herein.

[0108] It can be seen from the above structure that the electric device of the embodiment of the utility model, by adopting the aforementioned battery pack 1000, can reduce the manufacturing difficulty of the electric device and improve the production efficiency of the electric device while ensuring the working performance of the electric device.

[0109] It should be noted that the electrical devices mentioned here may be but are not limited to mobile phones, tablets, laptops, electric toys, electric tools, battery vehicles, electric vehicles, ships, spacecraft, etc.

[0110] Among them, electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric airplane toys; spacecraft may include airplanes, rockets, space shuttles and spacecraft; power tools include metal cutting power tools, grinding power tools, assembly power tools and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers.

[0111] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0112] The specific structures of the battery pack 1000 and other components of the electrical device having the same according to the embodiment of the utility model, such as the battery module 200, the wire 500 and other structural parts, are known to ordinary technicians in the field and will not be described in detail here.

[0113] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0114] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that: include: A housing is formed with a receiving cavity and a pole is provided on the housing; A battery module, the battery module is arranged in the accommodating cavity and is electrically connected to the pole through a connecting assembly; Wherein, the connecting assembly includes a first connector, a second connector and a conductive elastic member, one end of the first connector is plugged into the second connector and forms an electrical connection with the second connector, one of the first connector and the second connector is electrically connected to the pole, and the other is electrically connected to the battery module, the conductive elastic member includes a first conductive elastic member and a second conductive elastic member, the first conductive elastic member is connected between the outer periphery of the first connector and the second connector, the second conductive elastic member is connected between the one end of the first connector and the second connector, and at least parts of the first conductive elastic member and the second conductive elastic member protrude toward the first connector or the second connector.

2. The battery pack according to claim 1, characterized in that: The first connector includes a plug pin, and the second connector includes a socket. The socket is provided with a plug cavity with an open end, and the plug pin is plugged into the plug cavity through the open end.

3. The battery pack according to claim 2, characterized in that: The first conductive elastic member is fixedly connected to the inner circumferential wall of the plug-in cavity and extends along the inner circumferential wall of the plug-in cavity, so that the first conductive elastic member is formed into a cylindrical shape, the plug pin is plugged into the first conductive elastic member, and at least part of the first conductive elastic member protrudes toward the plug pin.

4. The battery pack according to claim 3, characterized in that: The first conductive elastic member includes a first elastic sheet and two first circular rings, the two first circular rings are spaced apart in the axial direction of the plug-in cavity and are respectively fixedly connected to the inner circumferential wall of the plug-in cavity, the first elastic sheet is connected between the two first circular rings and extends along the circumference of the plug-in pin, and at least a portion of the first elastic sheet protrudes toward the plug-in pin.

5. The battery pack according to claim 4, characterized in that: The first elastic sheets include a plurality of first elastic sheets, the plurality of first elastic sheets are arranged along the circumference of the insertion pin, and at least parts of two adjacent first elastic sheets are spaced apart in the circumference of the insertion pin.

6. The battery pack according to claim 2, characterized in that: The second conductive elastic member includes a second elastic sheet and a second circular ring, wherein the second circular ring is fixedly connected to the end wall of the plug-in cavity facing the opening, and the second elastic sheet is formed as an arc-shaped sheet, which is connected to the second circular ring and protrudes toward the opening, and at least a portion of the arc-shaped sheet is spaced apart from the second circular ring.

7. The battery pack according to any one of claims 2 to 6, characterized in that: A first thread structure is provided at one end of the first connector facing the pole, and the first connector is connected to the pole via the first thread structure; The second connector also includes an insulating seat, which is fixed to the accommodating cavity. A second threaded structure is provided at one end of the socket facing the insulating seat. The socket is connected to the insulating seat via the second threaded structure. The socket is electrically connected to the battery module via a wire.

8. The battery pack according to claim 7, characterized in that: A fastening portion is provided on the outer periphery of the socket, and the fastening portion is a polygonal structure.

9. The battery pack according to any one of claims 1 to 6, characterized in that: The pole includes a first pole and a second pole, the connecting assembly includes a plurality of poles, the first pole is connected to the first electrode of the battery module through one of the plurality of connecting assemblies, and the second pole is connected to the second electrode of the battery module through another of the plurality of connecting assemblies.

10. An electrical device, characterized in that: Comprising a battery pack according to any one of claims 1-9.

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