Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment, and the battery pack comprises a box body which is internally provided with a containing cavity; the battery pack is positioned in the accommodating cavity; the wire harness fixing assembly is located in the containing cavity, the wire harness fixing assembly and the battery pack are arranged in a spaced mode, the wire harness fixing assembly comprises a fixing body, a clamping groove is formed in the end, in the third direction, of the fixing body, and the clamping groove is used for clamping a conducting bar; the fixing piece is connected with the end, deviating from the clamping groove in the third direction, of the fixing body. And the binding belt is arranged on the fixing piece and is used for fixing the wire harness. The wire harness and the conducting bar are separately arranged through the wire harness fixing assembly, contact or friction between the wire harness and the conducting bar can be effectively avoided, and therefore the phenomenon that the wire harness is broken or locally short-circuited is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack harness fixing, in particular to a battery pack and electrical equipment. Background Art

[0002] With the development and progress of the new energy vehicle industry, the development and optimization of new energy power batteries are also constantly strengthened. In the design of power battery packs, the wiring harnesses and copper bars in the battery pack box are arranged crosswise.

[0003] When the battery pack is collided, shaken, etc., the wiring harness is likely to come into contact and rub against the conductive bar, causing the wiring harness to break or causing a local short circuit in the wiring harness. Utility Model Content

[0004] In view of this, the utility model provides a battery pack and an electrical device to at least solve the problem that the wiring harness in the current battery pack is prone to contact and rub against the conductive bar, causing the wiring harness to break or causing a local short circuit in the wiring harness.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] The utility model provides a battery pack, the battery pack comprising:

[0007] A box body, wherein a receiving cavity is provided in the box body;

[0008] A battery pack is located in the accommodating cavity;

[0009] A wire harness fixing assembly is located in the accommodating cavity and is spaced apart from the battery pack. The wire harness fixing assembly has a third direction and includes:

[0010] A fixed body, wherein a slot is provided at an end of the fixed body along the third direction, and the slot is used for clamping the conductive bar;

[0011] A fixing member connected to an end portion of the fixing body along the third direction away from the card slot;

[0012] A cable tie is installed on the fixing member and is used to fix the wiring harness.

[0013] Optionally, the wiring harness fixing assembly further has a first direction and a second direction both perpendicular to the third direction, and a through hole is penetrated on the fixing member along the first direction, and / or a through hole is penetrated on the fixing member along the second direction;

[0014] The cable tie is passed through the passing hole to be installed on the fixing member.

[0015] Optionally, the wiring harness fixing assembly has a second direction perpendicular to the third direction, and the fixing body comprises:

[0016] Two first side plates are arranged opposite to each other along the second direction;

[0017] The first top plate is connected to the two first side plates, and the first top plate is located at an end of the first side plate close to the fixing member, and the first top plate and the two first side plates enclose the slot.

[0018] Optionally, the first side plate includes a main body portion arranged along the third direction and an abutment portion connected to the main body portion, wherein the abutment portion is connected to an end of the main body portion away from the fixing member;

[0019] The wire harness fixing assembly further comprises a connecting piece, wherein the connecting piece is arranged on one of the abutting portions, and an end portion of the connecting piece is passed through the other abutting portion and connected thereto.

[0020] Optionally, the wiring harness fixing assembly further includes:

[0021] A seat body connected to an end of the fixing body close to the fixing member along the third direction;

[0022] The rotating part comprises a connecting part and a rotating part, wherein the connecting part is fixedly connected to the fixing part, the rotating part is connected to an end of the connecting part away from the fixing part, and the rotating part rotates relative to the seat body around the third direction.

[0023] Optionally, the seat body includes a second top plate, and a mounting hole penetrates through the second top plate along the third direction;

[0024] The connecting portion is located at one end of the second top plate close to the fixing member, and one end of the rotating portion away from the connecting portion is penetrated through the mounting hole. The diameter of the connecting portion is greater than the diameter of the mounting hole.

[0025] Optionally, the rotating member further includes a limiting portion connected to the rotating portion;

[0026] The limiting portion is protrudingly disposed on the rotating portion, and the limiting portion is connected to a side of the second top plate that is away from the connecting portion.

[0027] Optionally, the number of the limiting portions is at least two, and at least two of the limiting portions are arranged at intervals along the circumference of the rotating portion.

[0028] Optionally, the seat body further includes a bottom plate and a second side plate sequentially arranged along the third direction;

[0029] The bottom plate is fixedly connected to the fixing body, and the bottom plate is located at an end of the second top plate away from the fixing member, and the bottom plate is connected to the second top plate through the second side plate.

[0030] The utility model also provides an electrical device, comprising the battery pack described in any one of the above items.

[0031] Compared with the prior art, the battery pack and electrical equipment described in the utility model have the following advantages:

[0032] The battery pack of the utility model includes a wiring harness fixing assembly, which includes a fixing body, a cable tie and a fixing piece. The fixing body is provided with a slot for fixing a conductive bar. The fixing piece is connected to the fixing body, and the cable tie is installed on the fixing piece. The cable tie is used to fix the wiring harness. For some wiring harnesses that need to extend from the upper part of the box to the bottom of the box for fixing, these wiring harnesses can be inserted into the cable tie, and the wiring harness and the conductive bar can be arranged separately through the wiring harness fixing assembly. Since the conductive bar is located in the slot and the wiring harness is located in the cable tie, the wiring harness and the conductive bar can be effectively prevented from contacting or rubbing, thereby avoiding the phenomenon of wiring harness breakage or partial short circuit of the wiring harness, and improving the safety and reliability of the use of the wiring harness.

[0033] The electrical equipment of the present invention has the same or similar advantages as the prior art and the aforementioned battery pack, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0035] Figure 1 is a schematic diagram of a battery pack with a cover removed in an embodiment of the utility model;

[0036] Figure 2 It is a partial schematic diagram of a battery pack with a cover plate removed in an embodiment of the utility model;

[0037] Figure 3 It is a schematic diagram of a wire harness fixing assembly in an embodiment of the utility model;

[0038] Figure 4 It is a front view of a wire harness fixing assembly in an embodiment of the utility model;

[0039] Figure 5 It is a side view of a wire harness fixing assembly in an embodiment of the utility model;

[0040] Figure 6 It is a partially enlarged schematic diagram of a wire harness fixing assembly in an embodiment of the utility model.

[0041] Description of reference numerals:

[0042] 300-battery pack, 100-wiring harness fixing assembly, 200-box, 210-accommodating cavity, 201-battery pack, 2011-battery cell, 202-conductive bar, 1-fixed body, 10-card slot, 11-first side plate, 12-first top plate, 111-main body, 112-connecting section, 113-abutting portion, 13-connecting piece, 2-tie, 3-fixing piece, 30-through hole, 4-seat, 40-mounting hole, 41-bottom plate, 42-second top plate, 43-second side plate, 5-rotating piece, 51-connecting portion, 52-rotating portion, 53-limiting portion, 6-wiring harness. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0045] It should be understood that the reference to "some embodiments" throughout the specification means that specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the utility model. Therefore, the "in some embodiments" appearing in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0046] The following describes in detail a battery pack and an electrical device provided by the present invention by listing specific embodiments.

[0047] Figure 1 and Figure 2 A schematic diagram of a battery pack with a cover removed in an embodiment of the utility model is shown. Figure 3 A schematic diagram of a wiring harness fixing assembly in an embodiment of the utility model is shown, referring to Figures 1 to 3 The utility model provides a battery pack 300, which includes: a box body 200, in which a receiving cavity 210 is provided; a battery pack 201, in which the battery pack 201 is located; a wire harness fixing assembly 100, in which the receiving cavity 210 is located and spaced apart from the battery pack 201, the wire harness fixing assembly 100 has a third direction Z, and the wire harness fixing assembly 100 includes: a fixing body 1, in which a card slot 10 is provided along the third direction Z, and the card slot 10 is used to clamp a conductive bar 202; a fixing member 3, in which the fixing member 3 is connected to an end of the fixing body 1 along the third direction Z away from the card slot 10; a cable tie 2, in which the cable tie 2 is installed on the fixing member 3, and the cable tie 2 is used to fix the wiring harness 6.

[0048] Specifically, if Figure 1 and Figure 2 As shown, the battery pack 300 includes a box body 200, a receiving cavity 210 is provided in the box body 200, at least one group of battery packs 201 are provided in the receiving cavity 210, at least one group of battery packs 201 are arranged in parallel in the receiving cavity 210, each group of battery packs 201 is composed of a plurality of battery cells 2011 connected in series or in parallel, and the charging and discharging function of the battery pack 300 is essentially the charging and discharging of the battery packs 201 therein.

[0049] A conductive bar 202 is also provided in the accommodating cavity 210. The conductive bar 202 is used to connect multiple battery cells 2011 in series or to connect the battery cells 2011 with a BDU (Battery Disconnect Unit in English and Battery Disconnect Unit in Chinese). When the conductive bar 202 connects multiple battery cells 2011 in series, the conductive bar 202 is disposed above the multiple battery cells 2011 and is welded to the poles of the multiple battery cells 2011. When the conductive bar 202 connects multiple battery cells 2011 with a BDU, the conductive bar 202 is spaced apart from the multiple battery cells 2011. The conductive bar 202 may be a soft copper bar, an aluminum bar, etc., and has good conductive efficiency. Its outer layer is coated with an insulating layer to achieve insulation protection. The soft copper bar or aluminum bar has good flexibility and can be bent, twisted, etc. or folded into a desired shape to adapt to the installation space in the accommodating cavity 210.

[0050] One end of the wiring harness 6 is connected to the BDU, and the other end can be connected to the sampling component. The wiring harness 6 can be a voltage and temperature sampling wiring harness, a high-voltage interlock wiring harness, a high-voltage sampling wiring harness, a communication wiring harness, etc. In addition to the box body 200, the battery pack 300 also includes a cover plate, which is arranged on the upper part of the box body 200 and is fixedly connected to the box body 200. The cover plate is used to cover the accommodating cavity 210. After the cover plate covers the accommodating cavity 210, it can protect the battery pack 201 in the accommodating cavity 210, and prevent the external water vapor, dust, etc. from entering the accommodating cavity 210 and affecting the performance of the battery pack 201.

[0051] In the production of the battery pack 300, part of the wiring harness needs to be fixed from the pole side of the battery cell 2011 to the bottom of the battery box 200, such as Figure 2 As shown in the wiring harness 6 in the figure, the wiring harness 6 needs to be extended from the upper part of the box 200 to the bottom of the box 200 for fixation. For the fixation of this type of wiring harness, the wiring harness 6 is usually suspended above the conductive bar 202. When the battery pack collides, shakes, etc., this arrangement is likely to cause contact and friction between the wiring harness 6 and the conductive bar 202, thereby causing the wiring harness 6 to break, or the metal conductor in the wiring harness 6 is exposed and contacts the conductive bar 202, causing a local short circuit in the wiring harness 6.

[0052] Based on this, the battery pack 300 of the present invention further includes a wiring harness fixing assembly 100, such as Figure 3 As shown, the wire harness fixing assembly 100 has a third direction Z, such as Figure 3 As shown, the wire harness fixing assembly 100 includes a fixing body 1, a cable tie 2 and a fixing member 3. A slot 10 is provided on the fixing body 1 along the third direction Z. The slot 10 is used to fix the conductive bar 202. The shape and size of the slot 10 can be set according to the shape and size of the conductive bar 202. In the embodiment of the utility model, a rectangular slot 10 is provided on the fixing body 1 to meet the fixing requirements of the conductive bar 202 in most battery packs. In some embodiments, the inner wall of the slot 10 can be set to a rough surface, or an anti-slip structure such as an elastic protrusion can be set on the inner wall of the slot 10. After the conductive bar 202 is fixed in the slot 10, the friction between the slot 10 and the conductive bar 202 can be increased to prevent the conductive bar 202 from slipping out of the slot 10, thereby improving the reliability of the slot 10 fixing the conductive bar 202. The end of the fixing member 3 along the third direction Z away from the slot 10 is connected to the fixing body 1, and the cable tie 2 is installed on the fixing member 3 to fix the wire harness 6.

[0053] The battery pack 300 of the embodiment of the utility model includes a harness fixing assembly 100, which includes a fixing body 1, a cable tie 2 and a fixing member 3. The fixing body 1 is provided with a slot 10, which is used to fix the conductive bar 202. The fixing member 3 is connected to the fixing body 1, and the cable tie 2 is installed on the fixing member 3. The cable tie 2 is used to fix the harness 6. For some harnesses 6 that need to extend from the upper part of the box 200 to the bottom of the box 200 for fixing, these harnesses 6 can be inserted into the cable tie 2, and the harness 6 and the conductive bar 202 are arranged separately through the harness fixing assembly 100. Since the conductive bar 202 is located in the slot 10 and the harness 6 is located in the cable tie 2, the harness 6 can be effectively prevented from contacting or rubbing with the conductive bar 202, thereby avoiding the phenomenon of harness breakage or partial harness short circuit, thereby improving the safety and reliability of the harness.

[0054] Of course, the number of wiring harness fixing assemblies 100 can be set according to the fixing requirements of the wiring harness and the length of the conductive bar 202. If the number of wiring harnesses is large and the length of the conductive bar 202 is long, the number of wiring harness fixing assemblies 100 can be increased accordingly. If the battery pack 300 includes multiple wiring harness fixing assemblies 100, the multiple wiring harness fixing assemblies 100 can be arranged at intervals along the extension direction of the conductive bar 200. The specific number of wiring harness fixing assemblies 100 is not limited in the embodiment of the utility model.

[0055] Optionally, refer to Figure 3 The wiring harness fixing assembly 100 also has a first direction X and a second direction Y both perpendicular to the third direction Z. A through hole 30 is penetrated on the fixing member 3 along the first direction X, and / or a through hole 30 is penetrated on the fixing member 3 along the second direction Y; the cable tie 2 is penetrated through the through hole 30 to be installed on the fixing member 3.

[0056] Specifically, if Figure 3As shown, the harness fixing assembly 100 also has a first direction X and a second direction Y, both of which are perpendicular to the third direction Z. It should be noted that the "perpendicular" in the embodiment of the utility model not only includes the absolutely perpendicular situation, but also includes the generally perpendicular situation in engineering, that is, the angle between the first direction X, the second direction Y and the third direction Z is about 89° to 91°, which is regarded as the first direction X, the second direction Y and the third direction Z being perpendicular to each other. The fixing member 3 is provided with a through hole 30 that penetrates the fixing member 3. The through hole 30 can penetrate the fixing member 3 along the first direction X, the through hole 30 can also penetrate the fixing member 3 along the second direction Y, and the through hole 30 can also penetrate the fixing member 3 along other directions in the plane formed by the first direction X and the second direction Y. The cable tie 2 is penetrated through the through hole 30 to be installed on the fixing member 3. In some embodiments, an opening can be provided on the side of the fixing member 3 away from the fixing body 1 along the third direction Z, through which the situation of the cable tie 2 being inserted into the insertion hole 30 can be observed, and it is also convenient to adjust the position and direction of the cable tie 2 during the insertion process of the cable tie 2, thereby ensuring the smooth insertion of the cable tie 2.

[0057] Optionally, refer to Figure 3 The fixed body 1 includes a first top plate 12 and two first side plates 11 arranged opposite to each other along the second direction Y. The two first side plates 11 are connected to the first top plate 12 at ends close to the fixing member 3. The first top plate 12 and the two first side plates 11 enclose the card slot 10.

[0058] Specifically, if Figure 3 As shown, the fixed body 1 includes a first top plate 12 and two first side plates 11 arranged opposite to each other along the second direction Y. The first top plate 12 and the two first side plates 11 are made of plastic plates with a certain deformation ability. The plastic plates are plates composed of polymer compounds and other possible additives such as fillers, plasticizers, stabilizers, lubricants and pigments, and have plasticity and processability. For example, the first top plate 12 and the two first side plates 11 can be made of soft polyvinyl chloride plates, polypropylene plates, etc., which have good rubber elasticity, folding resistance, high temperature resistance, strong impact resistance and strong insulation. The two first side plates 11 are connected to the first top plate 12 at one end close to the fixing member 3, and the first top plate 12 and the two first side plates 11 enclose the card slot 10. In some embodiments, the first top plate 12 and the two first side plates 11 can be processed and formed by integral injection molding, so that the first top plate 12 and the two first side plates 11 are an integral structure, thereby controlling the processing cost of the fixed body 1.

[0059] In some embodiments, the ends of the two first side plates 11 facing away from the fixing member 3 along the third direction Z can be connected to each other. For example, the ends of the two first side plates 11 facing away from the fixing member 3 along the third direction Z can be set to a structure that can cooperate with each other, such as an elastic protrusion is set at the end of one first side plate 11 facing away from the fixing member 3, and a groove is set at the end of the other first side plate 11 facing away from the fixing member 3, and the elastic protrusion is embedded in the groove to achieve the connection of the two first side plates 11. In the process of fixing the conductive bar 202 to the fixing body 1, the ends of the two first side plates 11 facing away from the fixing member 3 can be separated first, and after the conductive bar 202 is clamped in the clamping groove 10, the ends of the two first side plates 11 facing away from the fixing member 3 are connected, thereby achieving the fixation of the conductive bar 202.

[0060] Figure 4 A front view of a wire harness fixing assembly in an embodiment of the utility model is shown. Figure 5 A side view of a wiring harness fixing assembly in an embodiment of the present utility model is shown, referring to Figure 4 and Figure 5 The first side plate 11 includes a main body 111 arranged along the third direction Z and an abutment portion 113 connected to the main body 111, and the abutment portion 113 is connected to one end of the main body 111 away from the fixing member 3; the wiring harness fixing assembly 100 also includes a connecting member 13, and the connecting member 13 is arranged on one of the abutment portions 113, and the end of the connecting member 13 is passed through the other abutment portion 113 and connected thereto.

[0061] Specifically, if Figure 4 and Figure 5 As shown, the first side plate 11 includes a main body 111 and an abutting portion 113 arranged along the third direction Z. The end of the main body 111 away from the fixing member 3 is bent and extended along the second direction Y to form a connecting section 112. The main body 111 is connected to the abutting portion 113 through the connecting section 112, that is, the abutting portion 113 is connected to the end of the main body 111 away from the first top plate 12. In the embodiment of the utility model, the fixed body 1 can form a rectangular closed card slot 10, which is not easy to cause the conductive bar 202 to be separated, which helps to improve the reliability of the fixed body 1 fixing the conductive bar 202.

[0062] like Figure 4 and Figure 5As shown, the wiring harness fixing assembly 100 also includes a connector 13, and the connector 12 is provided on one abutting portion 113. The form of the connector 12 includes but is not limited to fasteners such as rivets, bolts, and screws. A connecting hole is provided on the other abutting portion 113, and the connecting hole is arranged along the second direction Y. The connecting hole can be a through hole that penetrates the abutting portion 113, or a blind hole that does not penetrate the abutting portion 113. The end of the connector 13 is penetrated in the connecting hole on the other abutting portion 113 to connect with the other abutting portion 113. In some embodiments, the connector 12 can be set as a bolt, and the connecting hole is a threaded hole. The bolt is penetrated in the connecting hole and is threadedly connected to the connecting hole, so as to realize the mutual connection of the two abutting portions 113. In other embodiments, the connecting member 12 can be set as a rivet, and the connecting hole can be a through hole that passes through the abutment portion 113. The rivet is inserted from one end of the connecting hole. After passing through the connecting hole, the tail of the rivet abuts against the abutment portion 113 on the side of the connecting hole, thereby realizing the mutual connection between the two abutment portions 113.

[0063] Optionally, refer to Figures 3 to 5 The wiring harness fixing assembly 100 also includes: a seat body 4, connected to the end of the fixing body 1 along the third direction Z close to the fixing member 3; a rotating member 5, including a connecting portion 51 and a rotating portion 52, the connecting portion 51 is fixedly connected to the fixing member 3, the rotating portion 52 is connected to an end of the connecting portion 51 away from the fixing member 3, and the rotating portion 52 rotates around the third direction Z relative to the seat body 4.

[0064] Specifically, if Figures 3 to 5 As shown, the wiring harness fixing assembly 100 also includes a seat body 4, which is connected to the end of the fixing body 1 along the third direction Z close to the fixing member 3. The seat body 4 and the fixing body 1 can be connected by fastener assembly, welding, adhesive connection, etc. To ensure the reliability of the connection, the embodiment of the utility model preferably adopts welding to achieve the fixed connection between the seat body 4 and the fixing body 1.

[0065] The wiring harness fixing assembly 100 also includes a rotating part 5, which includes a connecting part 51 and a rotating part 52 connected to the connecting part 51. The rotating part 5 can be a split structure, and the connecting part 51 and the rotating part 52 are assembled or welded by two independent parts. The rotating part 5 can be an integrated structure, and the connecting part 51 and the rotating part 52 are directly formed by one-time processing.

[0066] The connecting portion 51 is located at one end close to the fixing member 3 and is fixedly connected to the fixing member 3. In some embodiments, a mounting hole for a fastener to pass through can be provided on one side of the connecting portion 51 close to the fixing member 3, so that the fixing member 3 and the connecting portion 51 are assembled and connected together by the fastener; in other embodiments, a welding spot can be provided on one side of the connecting portion 51 close to the fixing member 3, so that the fixing member 3 and the connecting portion 51 are welded together by welding; in other embodiments, an adhesive can be coated on one side of the connecting portion 51 close to the fixing member 3, so that the fixing member 3 and the connecting portion 51 are connected together by adhesive connection; the specific method for achieving the fixed connection between the connecting portion 51 and the fixing member 3 is not limited by the embodiments of the utility model.

[0067] The rotating part 52 is connected to one end of the connecting part 51 away from the fixing part 3. The rotating part 52 rotates relative to the seat body 4 around the third direction Z, so that the fixing part 3 can be rotatably connected with the fixed body 1 through the seat body 4 and the rotating part 5. The fixing part 3 rotates relative to the fixed body 1, which can drive the cable tie 2 in the penetration hole 30 to rotate synchronously, thereby adjusting the penetration direction of the cable tie 2, and further realizing flexible adjustment of the fixing direction of the wire harness, which is more conducive to fixing the wire harness in the narrow space of the accommodating cavity 210 of the box body 200.

[0068] Figure 6 A partial enlarged schematic diagram of a wiring harness fixing assembly in an embodiment of the utility model is shown, referring to Figures 3 to 6 The seat body 4 includes a second top plate 42, and a mounting hole 40 passes through the second top plate 42 along the third direction Z; the connecting portion 51 is located at one end of the second top plate 42 close to the fixing member 3, and the end of the rotating portion 52 away from the connecting portion 51 is penetrated by the mounting hole 40, and the diameter of the connecting portion 51 measured along the third direction Z is greater than the diameter of the mounting hole 40.

[0069] Specifically, if Figures 3 to 5 As shown, the seat body 4 includes a second top plate 42, and the connecting portion 51 of the rotating member 5 is located at one end of the second top plate 42 close to the fixing member 3, and the surface of the connecting portion 51 can abut against the surface of the second top plate 42. Figure 6As shown, a mounting hole 40 is provided on the second top plate 42, and the mounting hole 40 penetrates the second top plate 42 along the third direction Z. The mounting hole 40 may be a circular hole, and one end of the rotating portion 52 of the rotating member 5 away from the connecting portion 51 is penetrated in the mounting hole 40. The rotating portion 52 may be a cylindrical shaft, and the rotating portion 52 may rotate in the mounting hole 40 with the third direction Z as the axis, thereby realizing the rotational connection between the rotating member 5 and the seat body 4. Since the seat body 4 is fixedly connected to the end of the fixed body 1, and the fixing member 3 is fixedly connected to the connecting portion 51 of the rotating member 5, the rotational connection between the fixing member 3 and the fixed body 1 is indirectly realized through the rotational connection between the rotating member 5 and the seat body 4. In addition, along the third direction Z, the area of ​​the mounting hole 40 is smaller than the area of ​​the connecting portion 51, that is, along the first direction X or the second direction Y, the aperture of the mounting hole 40 is smaller than the size of the connecting portion 51. In this case, when the rotating portion 52 is inserted into the mounting hole 40, the connecting portion 51 can play a limiting role in the third direction Z to ensure that the distance at which the rotating portion 52 is inserted into the mounting hole 40 is reasonable.

[0070] Optionally, refer to Figures 3 to 6 The rotating member 5 further includes a limiting portion 53 connected to the rotating portion 52 ; the limiting portion 53 is protruding from the rotating portion 52 , and the limiting portion 53 is connected to a side of the second top plate 42 away from the connecting portion 51 .

[0071] Specifically, the limiting portion 53 can be made of a material with deformation ability such as rubber or silicone. When the rotating portion 52 is inserted into the mounting hole 40, the limiting portion 53 is squeezed and deformed, so that the rotating portion 52 can be smoothly inserted into the mounting hole 40. In some embodiments, a slot is provided at one end of the rotating portion 52 away from the fixing member 3 along the third direction Z, and at least part of the limiting portion 53 is embedded in the slot and fixedly connected to the slot, thereby realizing the connection between the limiting portion 53 and the rotating portion 52. In other embodiments, an adhesive is applied to one end of the rotating portion 52 away from the fixing member 3 along the third direction Z, and the limiting portion 53 is connected to the rotating portion 52 by adhesive. The embodiments of the utility model do not limit the specific connection form of the limiting portion 53 and the rotating portion 52.

[0072] The limiting portion 53 extends along the first direction X or the second direction Y, or along other directions within the plane formed by the first direction X and the second direction Y to connect with the side of the second top plate 42 away from the connecting portion 51, so that the second top plate 42 can prevent the limiting portion 53 from falling out of the mounting hole 40, thereby improving the anti-falling effect of the rotational connection between the rotating member 5 and the seat body 4. It should be noted that when the rotating portion 52 needs to be rotated, the connecting portion 51 can be pressed so that the connecting portion 51 squeezes the rotating portion 52 along the third direction Z, thereby generating a certain gap between the limiting portion 53 and the second top plate 42, so that the rotating portion 52 can rotate in the mounting hole 40.

[0073] In some embodiments, the limiting portion 53 is a structure that surrounds the outer circumference of the rotating portion 52. The contact area between the limiting portion 53 and the second top plate 42 under this structure is larger, and the anti-slip effect on the rotating member 5 is better, but the overall deformation ability of the limiting portion 53 is poor. During the process of inserting the rotating portion 52 into the mounting hole 40, the limiting portion 53 may be stuck with the mounting hole 40, resulting in the rotating portion 52 being unable to be smoothly inserted into the mounting hole 40. In other embodiments, the limiting portion 53 is provided on at least a portion of the outer circumference of the rotating portion 52. The contact area between the limiting portion 53 and the second top plate 42 under this structure is small, and the anti-slip effect on the rotating member 5 is relatively weak, but the overall deformation ability of the limiting portion 53 is better. During the process of inserting the rotating portion 52 into the mounting hole 40, the limiting portion 53 can be easily compressed and deformed, so that the rotating portion 52 can be smoothly inserted into the mounting hole 40.

[0074] Optionally, refer to Figures 3 to 6 The number of the limiting portions 53 is at least two, and at least two limiting portions 53 are arranged at intervals along the circumferential direction of the rotating portion 52.

[0075] Specifically, if Figures 3 to 6 As shown, the limiting portion 53 of the embodiment of the utility model extends outward and upward from one end of the rotating portion 52 away from the fixing member 3, so that the limiting portion 53 is inclined toward the second top plate 42. It should be noted that the limiting portion 53 extends outward to refer to extending in the first direction X, the second direction Y or other directions in the plane formed by the first direction X and the second direction Y in a direction away from the rotating portion 52, and the limiting portion 53 extends upward to refer to extending in the third direction Z toward the second top plate 42. The explanation of the above directions is also applicable in subsequent embodiments.

[0076] The number of the limiting parts 53 is at least two, and at least two limiting parts 53 are arranged at intervals along the circumference of the rotating part 52 to form a hook-shaped structure. Preferably, the interval distance between two adjacent limiting parts 53 can be set to be the same. Exemplarily, if there are two limiting parts 53, the angle between the two limiting parts 53 on the rotating part 52 is about 180°. If there are three limiting parts 53, the angle between the three limiting parts 53 on the rotating part 52 is about 120°. The embodiment of the utility model shows a structure in which three limiting parts 53 are provided at the end of the rotating part 52. At least two limiting portions 53 are arranged at intervals to form a hook-shaped structure. During the process of inserting the rotating portion 52 into the mounting hole 40, the limiting portion 53 is more easily squeezed and then contracted inwardly, and is not easily stuck by the mounting hole 40. At the same time, after the limiting portion 53 passes through the mounting hole 40 and is located in the seat body 4, the limiting portion 53 restores its deformation and opens outward, and can fully abut against the side of the second top plate 42 away from the connecting portion 51, thereby ensuring the anti-slip effect of the limiting portion 53.

[0077] Optionally, refer to Figures 3 to 6The seat body 4 also includes a bottom plate 41 and a second side plate 43 arranged in sequence along the third direction Z; the bottom plate 41 is fixedly connected to the fixed body 1, and the bottom plate 41 is located at the end of the second top plate 42 away from the fixing member 3, and the bottom plate 41 is connected to the second top plate 42 through the second side plate 43; the number of the second side plates 43 is multiple, and the multiple second side plates 43 are arranged around the bottom plate 41.

[0078] Specifically, if Figures 3 to 6 As shown, the seat body 4 also includes a bottom plate 41 and a second side plate 43 arranged in sequence along the third direction Z. The bottom plate 41 is fixedly connected to the fixed body 1. The form of fixed connection includes but is not limited to detachable connection with fasteners, welding, adhesive connection, etc., as long as relative movement between the bottom plate 41 and the fixed body 1 can be avoided. This embodiment of the utility model is not limited thereto. There is a gap between the rotating part 52 and the bottom plate 41 to facilitate the rotation of the rotating member 5.

[0079] The bottom plate 41 is located at the end of the second top plate 42 away from the fixing member 3. The bottom plate 41 is connected to the second top plate 42 through the second side plate 43. In some embodiments, the seat body 4 can be formed in an integrated manner, thereby eliminating the need for subsequent mutual connection between the bottom plate 41, the second top plate 42, and the second side plate 43, which is more helpful in saving costs. There are multiple second side plates 43, and multiple second side plates 43 are arranged around the periphery of the bottom plate 41. There is a hollow area between two adjacent second side plates 43. The setting of the hollow area helps to reduce the overall weight of the seat body 4 and control the production cost of the seat body 4. At the same time, the contact state of the limit part 53 and the second top plate 42 can be seen through the hollow area, which is convenient for personnel to timely understand the connection between the rotating member 5 and the seat body 4, and then timely inspect and maintain the rotating member 5 or the seat body 4 to ensure the reliability of the connection.

[0080] The utility model also provides an electrical device, comprising any one of the battery packs 300 described above.

[0081] Specifically, the electrical equipment includes but is not limited to electric vehicles, hybrid vehicles, charging stations and some energy storage systems. The electrical equipment is equipped with a battery pack of any of the aforementioned embodiments. The battery pack 300 fixes part of the wiring harness in the box through the wiring harness fixing assembly 100, which can avoid contact or friction between the wiring harness and the conductive bus in the box, thereby avoiding wiring harness breakage or partial short circuit of the wiring harness, improving the safety of the wiring harness, and further improving the reliability of the electrical equipment.

[0082] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery pack, characterized in that: The battery pack comprises: A box body (200), wherein a receiving chamber (210) is provided in the box body (200); A battery pack (201) is located in the accommodating cavity (210); A wire harness fixing assembly (100) is located in the accommodating cavity (210) and is spaced apart from the battery pack (201). The wire harness fixing assembly (100) has a third direction (Z). The wire harness fixing assembly (100) comprises: A fixed body (1), wherein a slot (10) is provided at an end portion of the fixed body (1) along the third direction (Z), and the slot (10) is used to hold a conductive bar (202); A fixing member (3) connected to an end portion of the fixing body (1) that is away from the card slot (10) along the third direction (Z); A cable tie (2), wherein the cable tie (2) is mounted on the fixing member (3), and the cable tie (2) is used to fix the wiring harness (6).

2. The battery pack according to claim 1, characterized in that: The wire harness fixing assembly (100) further has a first direction (X) and a second direction (Y) both perpendicular to the third direction (Z); a through hole (30) is penetrated on the fixing member (3) along the first direction (X), and / or a through hole (30) is penetrated on the fixing member (3) along the second direction (Y); The cable tie (2) is passed through the penetration hole (30) to be mounted on the fixing member (3).

3. The battery pack according to claim 1, characterized in that: The wire harness fixing assembly (100) has a second direction (Y) perpendicular to the third direction (Z), and the fixing body (1) comprises: Two first side plates (11) are arranged opposite to each other along the second direction (Y); A first top plate (12) is connected to the two first side plates (11), and the first top plate (12) is located at an end of the first side plate (11) close to the fixing member (3), and the first top plate (12) and the two first side plates (11) enclose the card slot (10).

4. The battery pack according to claim 3, characterized in that: The first side plate (11) comprises a main body (111) arranged along the third direction (Z) and an abutment portion (113) connected to the main body (111), wherein the abutment portion (113) is connected to an end of the main body (111) facing away from the fixing member (3); The wire harness fixing assembly (100) further comprises a connecting piece (13), wherein the connecting piece (13) is arranged on one of the abutting portions (113), and an end of the connecting piece (13) is passed through the other abutting portion (113) and connected thereto.

5. The battery pack according to claim 1, characterized in that: The wiring harness fixing assembly (100) further comprises: A seat body (4) connected to an end of the fixing body (1) close to the fixing member (3) along the third direction (Z); The rotating member (5) comprises a connecting portion (51) and a rotating portion (52), wherein the connecting portion (51) is fixedly connected to the fixing member (3), the rotating portion (52) is connected to an end of the connecting portion (51) which is away from the fixing member (3), and the rotating portion (52) rotates relative to the seat body (4) around the third direction (Z).

6. The battery pack according to claim 5, characterized in that: The seat body (4) comprises a second top plate (42), and a mounting hole (40) is penetrated through the second top plate (42) along the third direction (Z); The connecting portion (51) is located at one end of the second top plate (42) close to the fixing member (3), and one end of the rotating portion (52) facing away from the connecting portion (51) is passed through the mounting hole (40), and the diameter of the connecting portion (51) is greater than the diameter of the mounting hole (40).

7. The battery pack according to claim 6, characterized in that: The rotating member (5) further comprises a limiting portion (53) connected to the rotating portion (52); The limiting portion (53) is protruding from the rotating portion (52), and the limiting portion (53) is connected to a side of the second top plate (42) that is away from the connecting portion (51).

8. The battery pack according to claim 7, characterized in that: The number of the limiting portions (53) is at least two, and at least two of the limiting portions (53) are arranged at intervals along the circumference of the rotating portion (52).

9. The battery pack according to claim 6, characterized in that: The seat body (4) further comprises a bottom plate (41) and a second side plate (43) arranged in sequence along the third direction (Z); The bottom plate (41) is fixedly connected to the fixed body (1), and the bottom plate (41) is located at an end of the second top plate (42) away from the fixing member (3), and the bottom plate (41) is connected to the second top plate (42) via the second side plate (43).

10. An electrical device, characterized in that: A battery pack comprising any one of claims 1 to 9.

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