Wire harness assembly, battery pack and electric equipment

Abstract

The embodiment of the utility model relates to the technical field of batteries, and discloses a wire harness assembly, a battery pack and electric equipment, the wire harness assembly comprises a first shell, a second shell, a first wire harness assembly, a second wire harness assembly and a sealing element, the first shell and the second shell are detachably connected, and the first shell and the second shell jointly define a first space, a first hole and a second hole; the first wire harness assembly comprises a first connecting part and a first wire harness connected to the first connecting part; the second wire harness assembly comprises a second connecting part and a second wire harness connected to the second connecting part; the first connecting part and the second connecting part are connected in an inserted mode and located in the first space. The first wire harness extends out of the first space from the first hole, and the second wire harness extends out of the first space from the second hole; the sealing member seals a gap between the first wire harness and the first hole and a gap between the second wire harness and the second hole. Therefore, the shell is sealed to protect components in the shell, the risk of loosening and separating in the use process is reduced, and the reliability of electric connection is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of battery technology, and in particular to a wiring harness assembly, a battery pack, and an electrical device. Background Art

[0002] Wire harness assemblies can be used to connect devices to circuits to achieve current and signal transmission, and are widely used. Wire harness assemblies must ensure reliable electrical connections during use to ensure circuit connection and transmission.

[0003] However, the inventors found in the process of implementing the present application that the existing wiring harness assembly is easy to loosen and separate during use, and the wiring harness assembly is generally unprotected in the use environment, and may suffer from moisture corrosion and other problems.

[0004] Therefore, it is necessary to provide a new wiring harness assembly to solve the above technical problems. Utility Model Content

[0005] The embodiments of the present application aim to provide a wiring harness assembly, a battery pack, and an electrical device that can protect the wiring harness assembly and ensure the reliability of its electrical connection.

[0006] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a wiring harness assembly, including: a first shell, a second shell, a first wiring harness assembly, a second wiring harness assembly and a seal, the first shell and the second shell are detachably connected, and the first shell and the second shell together enclose a first space, a first hole and a second hole; the first wiring harness assembly includes a first connecting part and a first wiring harness connected to the first connecting part; the second wiring harness assembly includes a second connecting part and a second wiring harness connected to the second connecting part; the first connecting part and the second connecting part are plug-connected and located in the first space; the first wiring harness extends out of the first hole into the first space, and the second wiring harness extends out of the second hole into the first space; the seal seals the gap between the first wiring harness and the first hole and the gap between the second wiring harness and the second hole.

[0007] In one or more / any one of the above optional embodiments, the first wiring harness assembly includes a first fixing portion, which is arranged at an end of the first connecting portion away from the second connecting portion, the first fixing portion fixes the first wiring harness, and at least a portion of the first fixing portion is arranged in the first hole.

[0008] In one or more / any one of the above optional embodiments, the sealing member seals a gap between the first wire harness and the first fixing portion and a gap between the first hole and the first fixing portion.

[0009] In one or more / any one of the above optional embodiments, the first shell includes a first main body and a first extension portion, the first extension portion is connected to the opposite ends of the first main body along the first direction; the second shell includes a second main body and a second extension portion, the second extension portion is connected to the opposite ends of the second main body along the first direction, the first main body and the second main body together enclose a first space, and the first extension portion and the second extension portion form a first hole and a second hole; the first hole and the second hole are arranged opposite to each other along the first direction, and along the first direction, the projection of the first extension portion is located between the projection of the first main body and the projection of the second main body, and the projection of the second extension portion is located between the projection of the first main body and the projection of the second main body.

[0010] In one or more / any one of the above optional embodiments, the second main body and the first main body are arranged along the third direction; the first shell includes a first limiting portion, which is arranged on one side of the first main body along the second direction, and the second shell includes a second limiting portion, which is arranged on one side of the second main body along the second direction. The first limiting portion and the second limiting portion are detachably connected, and the second direction is perpendicular to the third direction and the first direction.

[0011] In one or more / any one of the above optional embodiments, the first main body and the second main body are arranged along a third direction, and the third direction is perpendicular to the first direction; along the third direction, the cross-sectional area of ​​the first hole is smaller than the cross-sectional area of ​​the first space; and / or along the second direction, the cross-sectional area of ​​the first hole is smaller than the cross-sectional area of ​​the first space, and the second direction is perpendicular to the third direction and the first direction.

[0012] In one or more / any one of the above optional embodiments, the first wiring harness assembly abuts against the first extension portion and the second extension portion; and / or the second wiring harness assembly abuts against the first extension portion and the second extension portion.

[0013] In one or more / any one of the above optional embodiments, the sealing member is a colloid.

[0014] An embodiment of the present application also provides a battery pack, including the above-mentioned wiring harness assembly, battery cell assembly and shell; the wiring harness assembly and the battery cell assembly are both arranged in the shell, the first wiring harness is connected to the battery cell assembly, and the second wiring harness extends out of the shell.

[0015] An embodiment of the present application also provides an electrical device, comprising the above-mentioned battery pack.

[0016] The embodiment of the present application provides a wiring harness assembly, a battery pack, and an electrical device. The first connector and the second connector are connected by plugging and placed in a first space, and the plugging and connecting first and second connectors are limited, thereby reducing the risk of the first and second connectors being loosened and separated during use, and improving the reliability of the electrical connection. In addition, by sealing the gap between the first wiring harness and the first hole and the gap between the second wiring harness and the second hole with a seal, on the one hand, the housing can be sealed to protect the components disposed in the housing; on the other hand, combined with the detachable connection between the first housing and the second housing, the risk of damaging the first connector and the second connector due to disassembly and assembly is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application.

[0018] Figure 1 is a schematic structural diagram of a wiring harness assembly provided in an embodiment of the present application;

[0019] Figure 2 yes Figure 1 a cross-sectional view of the wiring harness assembly shown;

[0020] Figure 3 yes Figure 2 A schematic diagram of the installation of a first wiring harness assembly and a second wiring harness assembly of the wiring harness assembly shown;

[0021] Figure 4 yes Figure 1 The schematic diagram of the installation of the seal in the wiring harness assembly shown;

[0022] Figure 5 yes Figure 1 The schematic diagram of the installation of the first housing and the second housing in the wiring harness assembly shown;

[0023] Figure 6 yes Figure 1 A schematic diagram of a wiring harness assembly in which a first housing and a second housing are in an open state is shown;

[0024] Figure 7 yes Figure 1 A schematic structural diagram of the wiring harness assembly from another perspective is shown. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "first", "second", "first end", "second end" and similar expressions used in this specification are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0027] See also Figure 1-Figure 3 , Figure 1 is a stereogram of a wiring harness assembly provided in an embodiment of the present application, Figure 2 yes Figure 1 A cross-sectional view of the wiring harness assembly is shown. Figure 3 1 is a schematic diagram of the installation of the first wiring harness assembly and the second wiring harness assembly. The wiring harness assembly 100 includes a first housing 110, a second housing 120, a first wiring harness assembly 210, and a second wiring harness assembly 220. The first housing 110 and the second housing 120 are detachably connected, and the first housing 110 and the second housing 120 jointly enclose a first space 101, a first hole 102, and a second hole 103. A portion of the first wiring harness assembly 210 is located in the first space 101, and a portion of the second wiring harness assembly 220 is located in the first space 101.

[0028] In some embodiments, Figure 3 As shown, the first wiring harness assembly 210 includes a first connection portion 211 and a first wiring harness 212 connected to the first connection portion 211. The second wiring harness assembly 220 includes a second connection portion 221 and a second wiring harness 222 connected to the second connection portion 221, and the first connection portion 211 and the second connection portion 221 are plug-connected and placed in the above-mentioned first space 101. The first wiring harness 212 extends out of the first space 101 from the first hole 102, and the second wiring harness 222 extends out of the first space 101 from the second hole 103. The first shell 110 and the second shell 120 can strengthen the protection of the first connection portion 21. At the same time, the first shell 110 and the second shell 120 can also strengthen the protection of the second connection portion 221.

[0029] In some embodiments, Figure 4As shown, the wire harness assembly 100 includes a seal 30 , which seals the gap between the first wire harness 212 and the first hole 102 , and seals the gap between the second wire harness 222 and the second hole 103 , thereby limiting foreign matter such as water from entering the first space 101 .

[0030] In some embodiments, please combine Figure 5 The first housing 110 includes a first main body 111 and a first extension 112, wherein the first extension 112 is connected to opposite ends of the first main body 111 along the first direction X. The second housing 120 includes a second main body 121 and a second extension 122, wherein the second extension 122 is connected to opposite ends of the second main body 121 along the first direction X. The first main body 111 and the second main body 121 together enclose a first space 101. The first extension 121 and the second extension 122 form the first hole 102 and the second hole 103.

[0031] In some embodiments, the first hole 102 and the second hole 103 are disposed opposite to each other along the first direction X, which is beneficial for assembling the first wire harness 212 and the second wire harness 222 .

[0032] In some embodiments, along the first direction X, the projection of the first extension portion 112 is located between the projection of the first main body portion 111 and the projection of the second main body portion 121, and the projection of the second extension portion 122 is located between the projection of the first main body portion 111 and the projection of the second main body portion 121, thereby facilitating the formation of the first hole 102 and the second hole 103.

[0033] In some embodiments, the first extension portion 112 is formed to extend from the first main body portion 111 in a direction away from the first main body portion 111. The second extension portion 122 is formed to extend from the second main body portion 121 in a direction away from the second main body portion 121.

[0034] In some embodiments, the first housing 110 is detachably connected to the second housing 120. Figure 5 and Figure 6 As shown, the first housing 110 includes a first limiting portion 113, which is disposed on one side of the first main body 111 along the second direction Y, and the second housing 120 includes a second limiting portion 123, which is disposed on one side of the second main body 121 along the second direction Y, and the first limiting portion 113 and the second limiting portion 123 are detachably connected, wherein the second direction Y is perpendicular to the first direction X. For example, along the second direction Y, one end of the first main body is hinged to one end of the second main body, and the first limiting portion and the second limiting portion are detachably connected.

[0035] In some embodiments, the detachable connection between the first limiting portion 113 and the second limiting portion 123 includes but is not limited to a snap connection. For example, one of the first limiting portion and the second limiting portion is a slot, and the other is a tongue, and the tongue is locked in the slot, thereby achieving a detachable connection between the two.

[0036] In some embodiments, the first shell 110 is integrally formed, and / or the second shell 120 is integrally formed.

[0037] In some embodiments, Figure 1 and Figure 7 As shown, when the first shell 110 and the second shell 120 are in a closed state, the second main body 121 and the first main body 111 are arranged along the third direction Z, wherein the third direction Z, the first direction X and the second direction Y are perpendicular to each other.

[0038] In some embodiments, along the second direction Y, the cross-sectional area of ​​the first hole 102 is smaller than the cross-sectional area of ​​the first space 101. Preferably, along the third direction Z, the cross-sectional area of ​​the first hole 102 is smaller than the cross-sectional area of ​​the first space 101. Thus, the first connection portion 211 and the second connection portion 221 are limited by the first space 101, reducing the problem of poor contact caused by loosening of the first connection portion 211 and the second connection portion 221 due to external force.

[0039] In some embodiments, the first wiring harness assembly 210 abuts against the first extension portion 112 and the second extension portion 122 , and / or the second wiring harness assembly 220 abuts against the first extension portion 112 and the second extension portion 122 , thereby further limiting the first connection portion 211 and the second connection portion 221 .

[0040] In some embodiments, Figure 3 As shown, the first wiring harness assembly 210 includes a first fixing portion 213, which is disposed at one end of the first connecting portion 211 away from the second connecting portion 221, wherein the first fixing portion 213 fixes the first wiring harness 212. At least a portion of the first fixing portion 213 is disposed in the first hole 102, which is conducive to limiting the movement of the first connecting portion 211 or the first fixing portion 213.

[0041] In some embodiments, there are two first wire harnesses 212 , namely, a first wire harness 212 a and a first wire harness 212 b , and correspondingly, there are two first fixing portions 213 which are arranged at intervals along the second direction Y. The first wire harness 212 a and the first wire harness 212 b are respectively arranged at one first fixing portion 213 .

[0042] In some embodiments, the second wiring harness assembly 220 includes a second fixing portion 223, which is disposed at an end of the second connecting portion 221 away from the first connecting portion 211, and the first fixing portion 213 and the second fixing portion 223 are disposed relatively along the first direction X. The second fixing portion 223 fixes the second wiring harness 222. At least a portion of the second fixing portion 223 is disposed in the second hole 103, which is conducive to limiting the movement of the second connecting portion 221 or the second fixing portion 223.

[0043] In some embodiments, there are two second wire harnesses 222, namely, a second wire harness 222a and a second wire harness 222b. Correspondingly, there are also two second fixing portions 223 which are arranged at intervals along the second direction Y. The second wire harness 212a and the second wire harness 212b are respectively arranged at a second fixing portion 223.

[0044] In some embodiments, the seal 30 seals the gap between the first fixing portion 213 and the first hole 102 and the gap between the first wire harness 212 and the first fixing portion 213 to enhance sealing of the wire harness assembly 100 .

[0045] In some embodiments, the seal 30 seals the gap between the second fixing portion 223 and the first hole 103 and the gap between the second wire harness 222 and the second fixing portion 223 to enhance the sealing of the wire harness assembly 100 .

[0046] In some embodiments, the first fixing portion 213 and the second fixing portion 223 are both arc-shaped structures, such as Figure 1 and Figure 7 As shown, at least part of the first fixing portion 213 extends to the first hole 102, and at least part of the second fixing portion 223 extends to the second hole 103, so that the first fixing portion 213 and the inner wall of the first hole 102 together enclose the first outlet hole 104, and the second fixing portion 223 and the inner wall of the second hole 103 together enclose the second outlet hole 105, and the first wire harness 212 is accommodated in the first outlet hole 104, and the second wire harness 222 is accommodated in the second outlet hole 105, so as to support and protect the wire harness. Further, the sealing member 30 seals the gap between the first wire harness 211 and the first outlet hole 104 and the gap between the second wire harness 222 and the second outlet hole 105. Preferably, the sealing member 30 is also used to seal the gap between the first hole 102 and the first outlet hole 104 and the gap between the second outlet hole 105 and the second hole 103.

[0047] In some embodiments, the first fixing portion 213 and the second fixing portion 223 may also be hollow cylindrical structures. For example, the first fixing portion may be placed in the first space, in which case the seal seals the gap between the first wiring harness and the first hole. Or at least part of the first fixing portion extends to the first hole, such as a portion of the first fixing portion is placed in the first space and another portion is placed in the first hole, in which case the seal seals the gap between the first wiring harness and the first fixing portion and the gap between the first hole and the first fixing portion. Or the first fixing portion extends outside the first hole, in which case the seal seals the gap between the first wiring harness and the first fixing portion and the gap between the first hole and the first fixing portion.

[0048] In some embodiments, the sealing member 30 is a sealant, and the sealant seals the gap between the first wire harness 212 and the first hole 102 and the gap between the second wire harness 222 and the second hole 103 through a glue dripping device.

[0049] The embodiment of the present application also provides a battery pack, including a shell, the above-mentioned wiring harness assembly 100 and a battery cell assembly, the battery cell assembly and the wiring harness assembly 100 are both arranged in the shell, the first wiring harness 212 of the wiring harness assembly 100 is connected to the battery cell assembly, and the second wiring harness 222 extends out of the shell.

[0050] In some embodiments, the outer shell is an aluminum-plastic film, and the battery cell assembly is a soft-pack battery cell.

[0051] In some embodiments, the battery cell assembly includes a first pole piece, a second pole piece, and a separator disposed between the first pole piece and the second pole piece, and the battery cell assembly is formed by winding the first pole piece, the second pole piece, and the separator around a reel. Among them, one of the first pole piece and the second pole piece is a positive pole piece, and the other is a negative pole piece. Further, the battery pack also includes a first pole ear and a second pole ear, the first pole ear is connected to the first pole piece, and the second pole ear is connected to the second pole piece. The first wiring harness 212a is connected to the first pole ear, and the first wiring harness 212b is connected to the second pole ear.

[0052] In some embodiments, a connector is provided at one end of the second wire harness 222 extending out of the housing, and the connector is used to connect to an external device to realize the charging or discharging process of the battery pack.

[0053] It should be noted that the end of the second wire harness 222 refers to an end of the second wire harness 222 away from the second connector 221 .

[0054] In some embodiments, the positive electrode sheet includes a positive electrode current collector and a positive electrode active material coated on the positive electrode current collector, wherein the positive electrode current collector may be an aluminum foil, a nickel foil or a stainless steel foil. The positive electrode active material includes a positive electrode material capable of absorbing and releasing lithium (Li), and examples of positive electrode materials capable of absorbing / releasing lithium (Li) may include lithium cobalt oxide, lithium nickel cobalt manganese oxide, lithium nickel cobalt aluminum oxide, lithium manganese oxide, lithium manganese iron phosphate, lithium vanadium phosphate, lithium vanadium phosphate, lithium iron phosphate, lithium titanate and lithium-rich manganese-based materials.

[0055] The negative electrode sheet includes a negative electrode current collector and a negative electrode active material coated on the negative electrode current collector, the negative electrode current collector may be a copper foil, and the negative electrode active material includes a negative electrode material capable of absorbing and releasing lithium (Li). Examples of negative electrode materials capable of absorbing / releasing lithium (Li) may include carbon materials, metal compounds, oxides, sulfides, lithium nitrides such as LiN3, lithium metal, metals and polymer materials that form alloys with lithium. Examples of carbon materials may include low graphitized carbon, easily graphitized carbon, artificial graphite, natural graphite, mesophase carbon microspheres, soft carbon, hard carbon, pyrolytic carbon, coke, glassy carbon, organic polymer compound sintered body, carbon fiber and activated carbon. Among them, coke may include pitch coke, needle coke and petroleum coke. Organic polymer compound sintered body refers to a material obtained by calcining a polymer material such as phenol plastic or furan resin at an appropriate temperature to carbonize it, and some of these materials are divided into low graphitized carbon or easily graphitized carbon. Examples of polymer materials may include polyacetylene and polypyrrole.

[0056] The material of the isolation membrane can be selected from one or more of glass fiber, non-woven fabric, polyethylene, polypropylene and polyvinylidene fluoride. The isolation membrane can be a single-layer film or a multi-layer composite film, without particular limitation. When the isolation membrane is a multi-layer composite film, the materials of each layer can be the same or different, without particular limitation.

[0057] The embodiment of the present application also provides an electric device, including the above-mentioned battery pack. The electric device includes a mobile phone, a computer, a tablet, etc.

[0058] The embodiment of the present application provides a wiring harness assembly, a battery pack, and an electrical device, which are connected by plugging a first connector and a second connector and placed in a first space, and the first connector and the second connector are limited, thereby reducing the risk of loosening and separation during use, and improving the reliability of the electrical connection. In addition, by sealing the gap between the first wiring harness and the first hole and the gap between the second wiring harness and the second hole with a seal, on the one hand, the housing can be sealed to protect the components (such as the first connector and the second connector) in the housing; on the other hand, combined with the detachable connection between the first housing and the second housing, the risk of damaging the first connector and the second connector due to disassembly and assembly is reduced.

[0059] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.

Claims

1. A wiring harness assembly, characterized in that: include: a first shell; A second shell, wherein the first shell and the second shell are detachably connected, and the first shell and the second shell together enclose a first space, a first hole, and a second hole; A first wiring harness assembly includes a first connecting portion and a first wiring harness connected to the first connecting portion; The second wiring harness assembly comprises a second connecting portion and a second wiring harness connected to the second connecting portion; the first connecting portion and the second connecting portion are plug-connected and located in the first space; the first wiring harness extends out of the first space from the first hole, and the second wiring harness extends out of the first space from the second hole; A seal seals a gap between the first wire harness and the first hole and a gap between the second wire harness and the second hole.

2. The wiring harness assembly according to claim 1, characterized in that: The first wiring harness assembly includes a first fixing portion, which is disposed at an end of the first connecting portion away from the second connecting portion, fixes the first wiring harness, and is disposed in the first hole.

3. The wiring harness assembly according to claim 2, characterized in that: The seal seals a gap between the first wire harness and the first fixing portion and a gap between the first hole and the first fixing portion.

4. The wiring harness assembly according to any one of claims 1 to 3, characterized in that: The first shell includes a first main body and a first extension, wherein the first extension is connected to two opposite ends of the first main body along a first direction; The second shell includes a second main body and a second extension, the second extension is connected to two opposite ends of the second main body along the first direction, the first main body and the second main body together enclose the first space, and the first extension and the second extension form the first hole and the second hole; The first hole and the second hole are arranged opposite to each other along the first direction. Along the first direction, the projection of the first extension portion is located between the projection of the first main body portion and the projection of the second main body portion, and the projection of the second extension portion is located between the projection of the first main body portion and the projection of the second main body portion.

5. The wiring harness assembly according to claim 4, characterized in that: The second main body portion and the first main body portion are arranged along a third direction; The first shell includes a first limiting portion, which is arranged on one side of the first main body along the second direction. The second shell includes a second limiting portion, which is arranged on one side of the second main body along the second direction. The first limiting portion and the second limiting portion are detachably connected, and the second direction is perpendicular to the third direction and the first direction.

6. The wiring harness assembly according to claim 4, characterized in that: The second main body portion and the first main body portion are arranged along a third direction, and the third direction is perpendicular to the first direction; Along the third direction, the cross-sectional area of ​​the first hole is smaller than the cross-sectional area of ​​the first space; and / or Along the second direction, the cross-sectional area of ​​the first hole is smaller than the cross-sectional area of ​​the first space, and the second direction is perpendicular to the third direction and the first direction.

7. The wiring harness assembly according to claim 4, characterized in that: The first wiring harness assembly abuts against the first extension portion and the second extension portion; and / or The second wire harness assembly abuts against the first extension portion and the second extension portion.

8. The wiring harness assembly according to claim 4, characterized in that: The sealing element is colloid.

9. A battery pack, characterized in that: include: The wiring harness assembly according to any one of claims 1 to 8; A battery cell assembly, wherein the first wiring harness is connected to the battery cell assembly; The housing includes a wiring harness assembly and a battery core assembly, wherein the wiring harness assembly and the battery core assembly are both arranged in the housing, and the second wiring harness extends out of the housing.

10. An electrical device, characterized in that: Comprising the battery pack as claimed in claim 9.

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