Adapter box assembly, electric equipment and vehicle

Abstract

The utility model discloses a switching box assembly, electric equipment and a vehicle, and the switching box assembly comprises a switching box which is internally provided with a wiring terminal; the first anti-rotation sheath is arranged in the switching box and is fixedly connected with the switching box, one of the wiring terminal and the first anti-rotation sheath is provided with a concave part, the other one of the wiring terminal and the first anti-rotation sheath is provided with a convex part, and the convex part is connected with the concave part in a matched manner. According to the utility model, the concave part is arranged on one of the wiring terminal and the first anti-rotation sheath, and the convex part is arranged on the other one of the wiring terminal and the first anti-rotation sheath, so that the wiring terminal is fixed in an anti-rotation manner through the limiting cooperation of the concave part and the convex part, the DC bus is prevented from rotating in the switching box, the connection reliability is ensured, and the problems of virtual connection and short circuit are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring harness switching, and more specifically, to a switching box component, electrical equipment and a vehicle. Background Art

[0002] In traditional wiring harness adapter boxes, after the wiring harness is transferred, the wiring harness is prone to rotation, the connection is not firm, and it is easy to have false connection and short circuit. Utility Model Content

[0003] One purpose of the utility model is to provide a new technical solution for a junction box assembly and an electrical device, which can at least solve the problems of loose connection of wiring harnesses in the prior art.

[0004] The first aspect of the utility model provides an adapter box assembly, including: an adapter box, wherein a wiring terminal is provided in the adapter box; a first anti-rotation sleeve, wherein the first anti-rotation sleeve is provided in the adapter box and fixedly connected to the adapter box, wherein one of the wiring terminal and the first anti-rotation sleeve is provided with a recess, and the other is provided with a protrusion, and the protrusion is cooperatively connected with the recess.

[0005] Optionally, the concave portion is provided on the wiring terminal, the convex portion is provided on the first anti-rotation sleeve, and the convex portion is located at an edge of one end of the first anti-rotation sleeve away from the axis thereof.

[0006] Optionally, there are a plurality of the first anti-rotation shields, which are fixed in the adapter box, and each of the first anti-rotation shields is respectively connected to one of the wiring terminals via the protrusion and the recess.

[0007] Optionally, a fixing plate is provided between two adjacent first anti-rotation shields, and a plurality of first anti-rotation shields are fixedly connected via the fixing plate.

[0008] Optionally, a second anti-rotation sheath is further provided in the adapter box, the second anti-rotation sheath is fixedly connected to the adapter box, the first anti-rotation sheath is provided in the second anti-rotation sheath, and the second anti-rotation sheath is fixedly connected to the first anti-rotation sheath.

[0009] Optionally, one of the second anti-rotation sleeves is respectively provided on the outer circumferential surface of each of the first anti-rotation sleeves, and a plurality of the first anti-rotation sleeves are connected and fixed via the second anti-rotation sleeves.

[0010] Optionally, the second anti-rotation shield is a protective plate, the end surface of the second anti-rotation shield close to the wiring terminal is provided with a limiting protrusion, and the end surface of the wiring terminal is provided with a limiting surface that cooperates with the limiting protrusion.

[0011] Optionally, the second anti-rotation shields are respectively provided on both radial sides of the first anti-rotation shield, and a partition is provided between the second anti-rotation shields.

[0012] Optionally, the adapter box includes: a first box body; a second box body, the second box body is sleeved in the first box body, and the second box body is fixedly connected to the first box body, an installation cavity is provided in the second box body, the DC bus at least partially extends into the installation cavity, and passes through the first anti-rotation sleeve to be electrically connected to the terminal.

[0013] Optionally, the DC bus is provided with a first buckle at a position close to the adapter box, and the first buckle is engaged with the adapter box to fix the DC bus through the first buckle.

[0014] Optionally, at least one first sealing ring is provided between the first buckle and the DC bus.

[0015] Optionally, sealant is provided between the first buckle and the first sealing ring.

[0016] Optionally, the second side of the adapter box is suitable for arranging a lead wire assembly, at least a portion of the lead wire assembly is located inside the adapter box, and the lead wire assembly is connected to the wiring terminal.

[0017] Optionally, the lead wire assembly includes: a lead wire; a shielding ring, the shielding ring being sleeved on the outside of the lead wire; a second buckle, the second buckle being sleeved on the outer wall of the lead wire to fix the lead wire assembly through the second buckle, a second sealing ring being provided between the second buckle and the lead wire, and the lead wire assembly and the terminal block being connected via a fixing member.

[0018] Optionally, the lead wire assembly and the adapter box are arranged in the vehicle cabin to be connected to a distribution box, and the DC bus is arranged outside the vehicle cabin to be connected to a motor and an electronic control, respectively.

[0019] A second aspect of the utility model provides an electrical device, comprising the adapter box assembly described in the above embodiment.

[0020] A third aspect of the present invention provides a vehicle, comprising the electrical equipment described in the above embodiments.

[0021] The adapter box assembly of the utility model provides a recessed portion on one of the wiring terminal and the first anti-rotation sleeve, and provides a raised portion on the other, and the wiring terminal is fixed to prevent rotation through the limiting cooperation between the recessed portion and the raised portion, thereby preventing the DC bus from rotating in the adapter box, ensuring the reliability of the connection, and avoiding the occurrence of false connection and short circuit problems.

[0022] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0024] Figure 1 It is a structural schematic diagram of an adapter box assembly according to an embodiment of the utility model;

[0025] Figure 2 is a side view of an adapter box assembly according to an embodiment of the utility model;

[0026] Figure 3 is a cross-sectional view of an adapter box assembly according to an embodiment of the utility model;

[0027] Figure 4 yes Figure 3 A partial enlarged view of the middle area A;

[0028] Figure 5 yes Figure 3 A partial enlarged view of the middle area B;

[0029] Figure 6 It is a structural exploded diagram of the adapter box assembly according to an embodiment of the utility model;

[0030] Figure 7 It is a connection diagram of a DC busbar and a transfer box of a transfer box assembly according to an embodiment of the utility model;

[0031] Figure 8 is another connection schematic diagram of the DC busbar of the adapter box assembly and the adapter box according to an embodiment of the utility model;

[0032] Fig. 9 yes Figure 8 A partial enlarged view of the middle area C;

[0033] Fig.10 is a partial top view of an adapter box assembly according to an embodiment of the utility model;

[0034] Fig.11 yes Fig.10 A partial enlarged view of the middle area D;

[0035] Fig.12 It is a schematic diagram of assembling the adapter box assembly and the vehicle body bottom plate according to an embodiment of the utility model.

[0036] Reference numerals:

[0037] Adapter box 10; first box body 11; second box body 12; connection terminal 13; first buckle 14; cover body 15;

[0038] DC bus 20;

[0039] First anti-rotation sleeve 30; protrusion 31; fixing plate 32;

[0040] Second anti-rotation sheath 40; partition 41; limiting protrusion 42;

[0041] First sealing ring 51; Sealant 52;

[0042] Lead wire assembly 60; lead wire 61; shielding crimping ring 62; second buckle 63; second sealing ring 64;

[0043] Car body bottom plate 71; Power distribution box 72. DETAILED DESCRIPTION

[0044] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0045] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0046] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0047] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0048] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0049] In the specification and claims of the utility model, if the term "first" or "second" is involved, it may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.

[0050] 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, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0051] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" involved should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] Below is the attached figure Figures 1 to 12 The adapter box assembly according to the embodiment of the utility model is described in detail.

[0053] like Figure 8 and Fig. 9 As shown, the adapter box assembly according to the embodiment of the utility model includes an adapter box 10 , a DC bus 20 and a first anti-rotation sheath 30 .

[0054] The adapter box 10 is provided with a connection terminal 13. The first anti-rotation sheath 30 is provided in the adapter box 10 and fixedly connected to the adapter box 10. One of the connection terminal 13 and the first anti-rotation sheath 30 is provided with a recess, and the other is provided with a protrusion 31, which is matched and connected with the recess.

[0055] In other words, Figure 8 and Fig. 9As shown, the adapter box assembly according to the embodiment of the utility model is mainly composed of an adapter box 10, a DC bus 20 and a first anti-rotation sleeve 30. Among them, a wiring terminal 13 is provided in the adapter box 10, one end of the DC bus 20 can be extended into the adapter box 10, and the DC bus 20 is connected to the wiring terminal 13. The first anti-rotation sleeve 30 is installed in the adapter box 10, and the first anti-rotation sleeve 30 is fixedly connected to the adapter box 10. One of the wiring terminal 13 and the first anti-rotation sleeve 30 is provided with a recess, and the other is provided with a protrusion 31. For example, the wiring terminal 13 is provided with a recess, and the first anti-rotation sleeve 30 is provided with a protrusion 31, or the wiring terminal 13 is provided with a protrusion 31, and the first anti-rotation sleeve 30 is provided with a recess. The protrusion 31 is matched and connected with the recess. The DC bus 20 is connected by a first anti-rotation sleeve 30, and the connection terminal 13 is fixed to prevent rotation through the limiting cooperation of the recess and the protrusion 31, thereby preventing the DC bus 20 from rotating in the adapter box 10, ensuring the reliability of its connection and avoiding the occurrence of false connection and short circuit problems.

[0056] According to an embodiment of the present invention, a recess is provided on the connection terminal 13 , a protrusion 31 is provided on the first anti-rotation sleeve 30 , and the protrusion 31 is located at an edge of one end of the first anti-rotation sleeve 30 away from its axis.

[0057] That is to say, Figure 8 and Fig. 9 As shown, a connection terminal 13 is provided in the adapter box 10, and a recess is provided on the connection terminal 13. One end of the DC bus 20 can be extended into the adapter box 10, and the DC bus 20 is connected to the connection terminal 13. The first anti-rotation sleeve 30 is provided in the adapter box 10, and one end of the DC bus 20 can pass through the first anti-rotation sleeve 30 and be connected to the connection terminal 13. A protrusion 31 is provided on the first anti-rotation sleeve 30, and the protrusion 31 is located at the edge of one end of the first anti-rotation sleeve 30 away from its axis. The position of the protrusion 31 corresponds to that of the recess. Through the limiting cooperation between the protrusion 31 and the recess, the connection terminal 13 can be fixedly supported and anti-rotated and limited in the axial and radial directions, thereby preventing the DC bus 20 from rotating in the adapter box 10, ensuring the reliability of its connection, and avoiding the problems of false connection and short circuit.

[0058] According to an embodiment of the present invention, there may be multiple first anti-rotation sleeves 30, which are fixed in the adapter box 10, and each first anti-rotation sleeve 30 can be connected to a terminal 13 through a protrusion 31 and a recess. Figure 1 and Figure 8As shown, the number of DC busbars 20 can be multiple, for example, four DC busbars 20, to achieve the switching of high current four-core busbars. Of course, the number of DC busbars 20, the first anti-rotation sheath 30 and the terminal block 13 can be specifically set according to actual needs, and will not be described in detail in the present utility model.

[0059] Therefore, according to the adapter box assembly of the embodiment of the utility model, a recess is set on the connecting terminal 13, and a first anti-rotation sleeve 30 with a protrusion 31 is set in the adapter box 10. The DC bus 20 is connected by the first anti-rotation sleeve 30, and the connecting terminal 13 is prevented from rotating and fixed by the limiting cooperation of the recess and the protrusion 31, thereby preventing the DC bus 20 from rotating in the adapter box 10, thereby ensuring the reliability of its connection and avoiding the occurrence of false connection and short circuit problems.

[0060] According to one embodiment of the utility model, Figure 7 As shown, a fixing plate 32 can be provided between two adjacent first anti-rotation sleeves 30, and a plurality of first anti-rotation sleeves 30 can be fixedly connected by the fixing plate 32, thereby further improving the stability between the plurality of first anti-rotation sleeves 30, and facilitating further improving the anti-rotation fixing effect of the wiring terminal 13, preventing the DC bus 20 from rotating in the adapter box 10, ensuring the reliability of its connection, and avoiding the problems of false connection and short circuit.

[0061] In the present utility model, if Figure 8 and Fig. 9 As shown, the recess can be provided on the side of the wiring terminal 13 facing the first anti-rotation sleeve 30, and the first anti-rotation sleeve 30 is a columnar structure corresponding to the shape of the DC bus 20. The bottom of the wiring terminal 13 is provided with a recess. The recess can be designed as a groove, and the top of the first anti-rotation sleeve 30 is provided with a protrusion 31, which can be provided as a bump, a convex point or other protrusion structure. The bump is limitedly connected with the groove, which can play a role of fixed support and anti-rotation limiting for the axial and radial directions of the wiring terminal 13, prevent the DC bus 20 from rotating in the adapter box 10, ensure the reliability of its connection, and avoid the problems of virtual connection and short circuit.

[0062] According to one embodiment of the utility model, Figure 7 , Fig.10 and Fig.11 As shown, the adapter box 10 is further provided with a second anti-rotation sheath 40, the second anti-rotation sheath 40 and the adapter box 10 can be fixedly connected, the first anti-rotation sheath 30 is installed in the second anti-rotation sheath 40, and the second anti-rotation sheath 40 and the first anti-rotation sheath 30 are fixedly connected. Figure 7 , Fig.10 and Fig.11As shown, by providing the second anti-rotation sheath 40, the second anti-rotation sheath 40 and the terminal 13 are anti-rotation limiters, which can also play a role in radially fixing and anti-rotating the cylindrical terminal 13. Under the dual effects of the first anti-rotation sheath 30 and the second anti-rotation sheath 40, the terminal 13 is further improved in fixing and anti-rotating the terminal 13.

[0063] In the present utility model, if Fig.10 and Fig.11 As shown, the connecting terminal 13 can adopt a cylindrical crimping terminal, and the connecting terminal 13 can adopt a copper column and be processed with an internal thread structure, which further optimizes the conventional copper busbar by riveting nuts to achieve the purpose of connecting and locking the copper busbars.

[0064] According to one embodiment of the utility model, Figure 7 As shown, a second anti-rotation sleeve 40 is respectively provided on the outer circumferential surface of each first anti-rotation sleeve 30, and a plurality of first anti-rotation sleeves 30 can be connected and fixed by the second anti-rotation sleeve 40, so as to further play a role of fixing and preventing rotation in the radial direction of the cylindrical terminal 13. Under the dual effects of the first anti-rotation sleeve 30 and the second anti-rotation sleeve 40, the fixing and anti-rotation effects of the terminal 13 are further improved.

[0065] According to one embodiment of the present invention, see Figure 7 The second anti-rotation sheath 40 can be configured as a protective plate, and a limiting protrusion 42 can be provided on the end surface of the second anti-rotation sheath 40 close to the terminal 13, and a limiting surface that cooperates with the limiting protrusion 42 can be provided on the end surface of the terminal 13. The second anti-rotation sheath 40 is connected to the limiting surface of the terminal 13 through the limiting protrusion 42, and further plays a role in fixing and preventing the terminal 13 in the radial direction. Under the dual effects of the first anti-rotation sheath 30 and the second anti-rotation sheath 40, the fixing and anti-rotation effects of the terminal 13 are further improved.

[0066] According to one embodiment of the present invention, see Figure 7 The second anti-rotation sheaths 40 are respectively arranged on both radial sides of the first anti-rotation sheath 30, and a partition is arranged between the second anti-rotation sheaths 40. The two adjacent second anti-rotation sheaths 40 are connected by the partition to increase the creepage distance. At the same time, the second anti-rotation sheaths 40 are open structures in other radial directions of the first anti-rotation sheath 30, which has a weight reduction effect and is convenient for processing.

[0067] According to an embodiment of the present invention, the adapter box 10 includes a first box body 11 and a second box body 12 .

[0068] Specifically, the second box body 12 is sleeved in the first box body 11 and fixedly connected to the first box body 11. A mounting cavity is provided in the second box body 12, and the DC bus 20 at least partially extends into the mounting cavity and passes through the first anti-rotation sheath 30 to be electrically connected to the terminal 13.

[0069] That is to say, Figure 6 As shown, the adapter box 10 is mainly composed of a first box body 11 and a second box body 12. Among them, the second box body 12 can be sleeved in the first box body 11, and the second box body 12 and the first box body 11 can be fixedly connected by means of snap connection, screw connection, etc. An installation cavity is provided in the second box body 12, and the DC bus 20 can at least partially extend into the installation cavity, and pass through the first anti-rotation sheath 30 to be electrically connected to the terminal 13. The first box body 11 can be a metal shell, and the second box body 12 and the first box body 11 can be connected by means of snap connection or screw connection, so as to improve the disassembly and assembly efficiency of the adapter box assembly. An installation cavity is provided in the second box body 12, and the first anti-rotation sheath 30 and the second anti-rotation sheath 40 are both provided in the installation cavity. One end of the DC bus 20 passes through the first box body 11 and extends into the installation cavity. The overall structure is compact and simple, the assembly precision requirement is low, and the later maintenance and disassembly are more convenient. Of course, the adapter box 10 is also provided with a cover body 15, which is covered on the top of the second box body 12 and fixedly connected by fastening screws.

[0070] According to one embodiment of the utility model, Figures 1 to 4 As shown, the DC bus 20 is provided with a first buckle 14 at a position close to the adapter box 10, and the first buckle 14 is engaged with the adapter box 10, so as to fix the DC bus 20 through the first buckle 14. During the assembly process of the DC bus 20 and the adapter box 10, as shown in FIG. Figure 1 and Figure 2 As shown, the first buckle 14 at the bottom of the adapter box 10 can clamp the DC bus 20, which is convenient for wiring the DC bus 20 and effectively prevents the DC bus 20 from shaking.

[0071] According to an embodiment of the present invention, at least one first sealing ring 51 is provided between the first buckle 14 and the DC bus 20. In other words, see Figure 4 At least one first sealing ring 51 may be provided between the first buckle 14 and the DC bus 20. The number of the first sealing ring 51 may be one or more to meet the waterproof sealing requirements of the vehicle. Fig.12As shown, the adapter box 10 needs to pass through the vehicle body bottom plate 71, and the adapter box 10 and the adapter box 10 and the vehicle body bottom plate 71 are sealed by the fastening studs provided by the first box body 11 and a plurality of first sealing rings 51. The DC bus 20 can achieve the sealing between the inside of the connector and the external natural environment through the first sealing ring 51. Of course, the specific number, shape, size, etc. of the first sealing ring 51 can be specifically set according to actual needs, and will not be described in detail in the present utility model.

[0072] According to an embodiment of the present invention, a sealant 52 is provided between the first buckle 14 and the first sealing ring 51. Figure 4 As shown, a glue filling process can be added between the first buckle 14 and the first sealing ring 51, and a sealant 52 is provided between the first buckle 14 and the first sealing ring 51, which greatly improves the sealing reliability of the wiring harness and realizes the dynamic wading function of the wiring harness outside the vehicle cabin.

[0073] According to an embodiment of the present invention, the second side of the adapter box 10 is suitable for arranging the lead wire assembly 60 , at least a portion of the lead wire assembly 60 is located inside the adapter box 10 , and the lead wire assembly 60 is connected to the connection terminal 13 .

[0074] In other words, Figures 1 to 3 As shown, the second side of the adapter box can be used to arrange the lead wire assembly 60, at least a part of the lead wire assembly 60 can be extended into the adapter box 10, and the lead wire assembly 60 and the DC bus 20 can be connected line to line. Through the adapter box 10, the DC bus 20 and the lead wire assembly 60 can be connected line to line. The structural design is novel, compact and simple, the assembly precision requirement is low, and the later maintenance, disassembly and assembly are convenient. In addition, the line-to-line adapter box has a flexible outlet mode, which can realize multi-angle outlet transfer, reduce the difficulty of vehicle wiring, and can be applied to a variety of scene types, and can reduce the space occupied by the adapter box. At the same time, the cabin and the cabin are transferred through the adapter box, which can greatly reduce the impact of the harsh environment outside the cabin on the luggage compartment and the passenger compartment. The outlet terminal in the lead wire assembly 60 and the wiring terminal 13 can be connected by screw fastening, and the connection form is stable and reliable, which can avoid the occurrence of virtual connection and short circuit. In addition, the contact area between the terminals is large, the terminal overcurrent capacity is improved, and the power performance of the vehicle can be improved.

[0075] According to one embodiment of the utility model, the lead wire assembly 60 includes a lead wire 61, a shielding crimping ring 62 and a second buckle 63. Specifically, the shielding crimping ring 62 is sleeved on the outside of the lead wire 61. The second buckle 63 is sleeved on the outer wall of the lead wire 61 to fix the lead wire assembly 60 through the second buckle 63, a second sealing ring 64 is provided between the second buckle 63 and the lead wire 61, and the lead wire assembly 60 is connected to the terminal 13 through a fixing member.

[0076] In other words, Figure 3 and Figure 5 As shown, the lead wire assembly 60 is mainly composed of a lead wire 61, a shielding crimping ring 62 and a second buckle 63. Among them, the shielding crimping ring 62 can be sleeved on the outside of the lead wire 61. The second buckle 63 can be sleeved on the outer wall of the lead wire 61. The second buckle 63 can be designed as an inward extension structure, and the second buckle 63 is close to the outer wall of the adapter box 10, so as to fix the lead wire assembly 60 through the second buckle 63. A second sealing ring 64 is arranged between the second buckle 63 and the lead wire 61. The lead wire assembly 60 and the terminal 13 can be connected by a fixing member to prevent the terminal 13 from rotating with the fixing member when the fixing member is installed. The lead wire assembly 60 can be sealed between the end of the distribution box 72 and the adapter box 10 through the second sealing ring 64. By providing a second buckle 63 with an inwardly extending structure, the second sealing ring 64 in the lead-out wire assembly 60 can be effectively fixed in a corresponding position, and the wiring harness will not swing due to the vibration of the entire vehicle, which will eventually cause the second sealing ring 64 to shift and cause sealing failure.

[0077] According to an embodiment of the present invention, the lead wire assembly 60 and the adapter box 10 are arranged in the vehicle cabin to be connected to the distribution box 72, and the DC bus 20 is arranged outside the vehicle cabin to be connected to the motor and the electronic control respectively.

[0078] That is to say, in the design of the present invention, in order to realize the wiring harness transfer between the inside and outside of the cabin, the adapter box 10 is arranged in a special position, the lead wire assembly 60 and the adapter box 10 are arranged in the cabin, the lead wire assembly 60 is connected to the distribution box 72 on the vehicle body floor 71, and the DC bus 20 is arranged outside the cabin, and the DC bus 20 is connected to the motor and the electronic control respectively. Fig.12 As shown, the lead wire assembly 60 can be directly connected to the distribution box 72 through the shielding crimping ring 62, the second sealing ring 64, and the second buckle 63, so as to realize the sealing of the end interface of the distribution box 72 while realizing the current connection. The structural design is simple, and the production line manufacturing and assembly process are convenient. In addition, the connection method in which the lead wire assembly 60 directly extends into the distribution box 72 can directly reduce the development of the high-voltage connector at the end interface of the distribution box 72 to realize the connection with the adapter box 10, effectively reducing the raw material cost of the assembly, as well as the manufacturing cost and after-sales maintenance cost.

[0079] In the utility model, the DC bus 20 can be assembled with the pre-hung screws on the four connectors, so that the assembly worker can hold the wire with one hand and tighten the bolts with the tool with the other hand to complete the assembly of the boost line and the adapter box. While fully considering the operating posture of the assembler, the assembly efficiency of the production line workers is greatly improved and the labor cost is reduced. The adapter box assembly, on the basis of eliminating the complex and high-precision structure of traditional connectors, the various components of the DC bus 20, adapter box 10, and lead wire assembly 60 in this component product are cleverly matched to achieve the connection between the in-cabin distribution box 72 and the out-cabin motor electronic control assembly. And on the basis of lower development costs, the production and assembly costs and after-sales maintenance costs are reduced.

[0080] The adapter box assembly of the utility model can select copper cables and aluminum cables with wire diameters of various specifications to connect to transmit large currents throughout the vehicle, and is suitable for different new energy vehicles.

[0081] In the assembly process of the adapter box assembly of the utility model, first, Figure 3 As shown, the first sealing ring 51 in the adapter box 10 can be installed on the metal shell of the adapter box (first box body 11). Then, the adapter box sheath shell (second box body 12) is fastened to the first box body 11 by screws. Next, the assembled DC bus 20 is installed into the metal shell of the adapter box, and the pre-hanging screws provided with the metal shell of the DC bus 20 are used to fasten it. The assembled lead wire assembly 60 is installed into the metal shell of the adapter box, and the lead wire assembly 60 is connected and fastened to the DC bus 20 using the copper bar fastening screws. Finally, the adapter box cover (cover body 15) is installed on the second box body 12, and fixed with the cover fastening screws to complete the assembly of the adapter box assembly.

[0082] In summary, according to the adapter box assembly of the embodiment of the utility model, a recess is set on the terminal 13, a first anti-rotation sheath 30 with a protrusion 31 is set in the adapter box 10, and the DC bus 20 is connected by the first anti-rotation sheath 30, and the terminal 13 is fixed to prevent the DC bus 20 from rotating in the adapter box 10 through the limiting cooperation of the recess and the protrusion 31, so as to ensure the reliability of its connection and avoid the problems of false connection and short circuit. The utility model provides an adapter box assembly for a large current four-core bus, which adopts a shielded cable to achieve single-core shielding, but the overall shielding function of the wiring harness can still be achieved by changing the metal flange structure of the DC bus 20. The adapter box assembly can be designed with multi-angle transformation, which is compatible with assembly and outlet requirements at different angles, and is convenient for selecting different cable diameter specifications to meet the wiring harness solutions under different overcurrent requirements. At the same time, the adapter box assembly can select different numbers of cables to expand into two-core, three-core or multi-core wiring harness adapter box forms. In addition, the adapter box assembly uses high-voltage cable transmission, which can be replaced by aluminum rods or copper bars to connect and transmit current.

[0083] Of course, for those skilled in the art, other structures and working principles of the adapter box assembly are understandable and achievable, and will not be described in detail in the present invention.

[0084] According to the second aspect of the embodiment of the utility model, an electrical device is provided, including the adapter box assembly in the above embodiment. The electrical device may be a vehicle or other equipment. Since the adapter box assembly according to the embodiment of the utility model has the above technical effects, the electrical device according to the embodiment of the utility model should also have the corresponding technical effects. That is, the electrical device of the utility model can prevent the terminal 13 from rotating by adopting the adapter box assembly, prevent the DC bus 20 from rotating in the adapter box 10, ensure the reliability of its connection, avoid the problems of false connection and short circuit, and is suitable for large current transmission.

[0085] Of course, for those skilled in the art, other structures and working principles of the electrical equipment are understandable and achievable, and will not be described in detail in the present utility model.

[0086] According to the second aspect of the embodiment of the utility model, a vehicle is provided, including the electrical equipment in the above embodiment. Since the electrical equipment according to the embodiment of the utility model has the above technical effects, the vehicle according to the embodiment of the utility model should also have the corresponding technical effects. That is, the vehicle of the utility model can prevent the connection terminal 13 from rotating by adopting the electrical equipment, prevent the DC bus 20 from rotating in the adapter box 10, ensure the reliability of its connection, avoid the problems of virtual connection and short circuit, and is suitable for large current transmission, thereby improving the safety of vehicle electricity use.

[0087] Of course, for those skilled in the art, other structures of the vehicle and their working principles are understandable and achievable, and will not be described in detail in the present utility model.

[0088] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A switching box assembly, characterized in that: include: A transfer box, wherein the transfer box is provided with connection terminals; A first anti-rotation sleeve, wherein the first anti-rotation sleeve is disposed in the adapter box and fixedly connected to the adapter box, one of the wiring terminal and the first anti-rotation sleeve is provided with a recess, and the other is provided with a protrusion, and the protrusion is matched and connected with the recess.

2. The adapter box assembly according to claim 1, characterized in that: The concave portion is provided on the connecting terminal, the convex portion is provided on the first anti-rotation sleeve, and the convex portion is located at an edge position of one end of the first anti-rotation sleeve away from the axis thereof.

3. The adapter box assembly according to claim 1, characterized in that: There are a plurality of the first anti-rotation sleeves, which are fixed in the adapter box, and each of the first anti-rotation sleeves is respectively connected to one of the wiring terminals through the protrusion and the recess.

4. The adapter box assembly according to claim 3, characterized in that: A fixing plate is provided between two adjacent first anti-rotation shields, and a plurality of first anti-rotation shields are fixedly connected via the fixing plate.

5. The adapter box assembly according to claim 1, characterized in that: A second anti-rotation sheath is further provided in the adapter box, the second anti-rotation sheath is fixedly connected to the adapter box, the first anti-rotation sheath is provided in the second anti-rotation sheath, and the second anti-rotation sheath is fixedly connected to the first anti-rotation sheath.

6. The adapter box assembly according to claim 5, characterized in that: A second anti-rotation sleeve is respectively provided on the outer circumferential surface of each of the first anti-rotation sleeves, and a plurality of the first anti-rotation sleeves are connected and fixed by the second anti-rotation sleeves.

7. The adapter box assembly according to claim 5, characterized in that: The second anti-rotation shield is a protective plate. The end surface of the second anti-rotation shield close to the wiring terminal is provided with a limiting protrusion, and the end surface of the wiring terminal is provided with a limiting surface that cooperates with the limiting protrusion.

8. The adapter box assembly according to claim 7, characterized in that: The second anti-rotation sleeves are respectively provided on both radial sides of the first anti-rotation sleeve, and a partition is provided between the second anti-rotation sleeves.

9. The adapter box assembly according to claim 4, characterized in that: The adapter box comprises: A first box body; The second box body is sleeved in the first box body, and the second box body is fixedly connected to the first box body. The second box body is provided with an installation cavity, and the DC bus at least partially extends into the installation cavity and passes through the first anti-rotation sleeve to be electrically connected to the terminal.

10. The adapter box assembly according to claim 9, characterized in that: The DC bus is provided with a first buckle at a position close to the adapter box, and the first buckle is engaged with the adapter box to fix the DC bus through the first buckle.

11. The adapter box assembly according to claim 10, characterized in that: At least one first sealing ring is provided between the first buckle and the DC bus.

12. The adapter box assembly according to claim 11, characterized in that: Sealant is provided between the first buckle and the first sealing ring.

13. The adapter box assembly according to claim 9, characterized in that: The second side of the adapter box is suitable for arranging a lead wire assembly, at least a portion of the lead wire assembly is located in the adapter box, and the lead wire assembly is connected to the connection terminal.

14. The adapter box assembly according to claim 13, characterized in that: The lead wire assembly comprises: Lead wire; A shielding ring, wherein the shielding ring is sleeved on the outside of the lead-out wire; A second buckle is sleeved on the outer wall of the lead wire to fix the lead wire assembly through the second buckle, a second sealing ring is provided between the second buckle and the lead wire, and the lead wire assembly is connected to the terminal through a fixing member.

15. The adapter box assembly according to claim 13, characterized in that: The lead wire assembly and the adapter box are used to be arranged in the vehicle cabin to be connected to the distribution box, and the DC bus is used to be arranged outside the vehicle cabin to be connected to the motor and the electronic control respectively.

16. An electrical equipment, characterized in that: The invention comprises the adapter box assembly according to any one of claims 1 to 15.

17. A vehicle, characterized in that: Including the electrical equipment as described in claim 16.

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