Inlet wire assembly for in-line distribution box, in-line distribution box and vehicle

Abstract

The utility model relates to a wire inlet assembly for a direct insertion type distribution box, the direct insertion type distribution box and a vehicle. The wire inlet assembly is integrally formed and is made of an elastic material, and the wire inlet assembly comprises a lower shell matching structure which is used for being cooperatively connected with a wire inlet arranged on a lower shell of the direct insertion type power distribution box, and the lower shell matching structure is provided with a wire accommodating fixing structure; the wire accommodating and fixing structure is a hollow structure and is used for allowing a wire harness to pass through and fixing the wire harness; thus, in the using process, the wire inlet assembly is installed at the wire inlet and is attached to the wire inlet, and the sealing performance of the direct insertion type power distribution box is improved; the wire inlet assembly is integrally formed, so that no gap exists between the lower shell matching structure and the wire accommodating fixing structure; and the lower shell matching structure is connected with the wire inlet in a matching manner and is provided with a wire harness penetrating and wire accommodating fixing structure, so that a gap between the wire inlet and the wire harness is greatly reduced after the wire harness penetrates, and the sealing performance of the direct insertion type power distribution box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to an incoming line assembly for a direct-plug type power distribution box, a direct-plug type power distribution box and a vehicle. Background Art

[0002] With the development of the automotive industry, the power performance and comfort performance of various vehicles have been significantly improved, and details have become the focus of more attention in the automotive manufacturing field. In the low-voltage wiring harness of the whole vehicle, the plug-in distribution box is a conventional component that meets the power distribution and wiring requirements of the whole vehicle.

[0003] The plug-in distribution box in the related art usually takes into account the universal platform, and the size of the wire inlet is reserved to be larger, while the size of the wire harness may be very small, resulting in poor sealing of the distribution box. Utility Model Content

[0004] Based on this, it is necessary to provide an incoming line assembly for a plug-in distribution box, a plug-in distribution box and a vehicle that improve the sealing performance of the plug-in distribution box.

[0005] In a first aspect, a line inlet assembly for a plug-in type power distribution box is provided, wherein the line inlet assembly is integrally formed and is made of an elastic material, and the line inlet assembly comprises:

[0006] The lower shell matching structure is used to match and connect with the line inlet provided on the lower shell of the plug-in type distribution box, and the lower shell matching structure is provided with a line holding and fixing structure;

[0007] The wire-holding structure is a hollow structure, which is used for passing the wire harness and fixing the wire harness.

[0008] In one embodiment, the material of the incoming line component is rubber.

[0009] In one of the embodiments, the lower shell mating structure includes a first mating substructure and a second mating substructure;

[0010] The first matching substructure is used to fit with the edge of the line inlet of the plug-in type distribution box;

[0011] The second matching substructure is connected to the first matching substructure and is used for interference fit with the line inlet cavity of the plug-in type distribution box.

[0012] In one of the embodiments, the lower shell matching structure includes a third matching substructure connected to the first matching substructure, and is used to fit with the line inlet baffle provided on the lower shell of the plug-in type distribution box.

[0013] In one of the embodiments, the wire-holding fixing structure includes a semicircular slot and a circular cavity, wherein the semicircular slot is arranged on a side of the lower shell matching structure away from the plug-in distribution box in the installed state;

[0014] The circular cavity is connected with the semicircular slot and is arranged in the lower shell matching structure.

[0015] In one of the embodiments, the incoming line assembly further includes an in-box wire passing structure;

[0016] The wire passing structure in the box is connected to the wire holding fixing structure and is arranged on a side of the lower shell matching structure close to the plug-in type distribution box in the installed state.

[0017] In one embodiment, the radius of the semicircular slot ranges from 12 mm to 16 mm, the axial length of the semicircular slot ranges from 16 mm to 20 mm, and the axial length of the wire passing structure in the box ranges from 18 mm to 22 mm.

[0018] In a second aspect, a plug-in type distribution box is provided, comprising a lower shell and an incoming line assembly for the plug-in type distribution box as provided in the first aspect.

[0019] In one of the embodiments, a cable tie hole is provided on the shell wall at the cable inlet position of the lower shell.

[0020] According to a third aspect, a vehicle is provided, comprising the plug-in distribution box provided in the second aspect.

[0021] The above aspects provide an incoming line assembly for a plug-in distribution box, a plug-in distribution box and a vehicle, wherein the incoming line assembly is integrally formed and is made of elastic material, and the incoming line assembly includes: a lower shell matching structure, which is used to match and connect with the incoming line port set on the lower shell of the plug-in distribution box, and the lower shell matching structure is provided with a wire-accommodating fixing structure; the wire-accommodating fixing structure is a hollow structure, which is used for passing the wire harness through and fixing the wire harness. In this way, during use, the incoming line assembly is first installed to the incoming line port position so that it fits with the incoming line port to improve the sealing of the plug-in distribution box; the incoming line assembly is integrally formed so that there is no gap between the lower shell matching structure and the wire-holding fixing structure; the lower shell matching structure is matched with the incoming line port and is provided with a wire-holding fixing structure for passing and fixing the wire harness, so that after the wire harness is passed through, the gap between the incoming line port and the wire harness is greatly reduced, thereby improving the sealing of the plug-in distribution box; the incoming line assembly is made of elastic material, which is convenient for designing into a special-shaped structure that is matched with the incoming line port, and can minimize the friction loss with the incoming line port and the wire harness; the incoming line assembly is made of elastic material, which is convenient for installation and disassembly of the incoming line assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology description are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them, in order to more clearly illustrate the state of the incoming line assembly provided in the embodiments of the present application during assembly, the drawings provided in the present application use different colors to represent the lower shell and the incoming line assembly.

[0023] Figure 1 This is a structural schematic diagram of the lower shell of the plug-in type distribution box applicable to the embodiment of the present application;

[0024] Figure 2 It is a structural schematic diagram of an incoming line assembly for a plug-in type power distribution box in one embodiment from one perspective;

[0025] Figure 3 It is a structural schematic diagram of an incoming line assembly for a plug-in type power distribution box in one embodiment from another perspective;

[0026] Figure 4 It is a structural schematic diagram of an incoming line assembly for a plug-in type power distribution box in an embodiment at one viewing angle when it is in an assembled state;

[0027] Figure 5 It is a structural schematic diagram of an incoming line assembly for a plug-in type power distribution box in an embodiment when it is assembled from another perspective;

[0028] Figure 6 It is a schematic diagram of the inner shell perspective of the incoming line assembly of the plug-in distribution box in an embodiment when it is assembled.

[0029] Explanation of the reference numerals: 100, lower shell; 110, wire inlet; 120, wire inlet baffle; 130, cable tie hole; 200, wire inlet assembly; 210, lower shell matching structure; 211, first matching substructure; 212, second matching substructure; 213, third matching substructure; 220, wire holding and fixing structure; 221, semicircular slot; 222, circular cavity; 230, wire passing structure in the box; 300, wiring harness. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] Please refer to Figure 1 , is a schematic diagram of the structure of the lower shell 100 of the plug-in type distribution box applicable to the embodiment of the present application; wherein, the lower shell 100 is provided with a wire inlet 110 for passing the low-voltage wire harness 300. Generally, the size of the wire inlet 110 is reserved to be larger to accommodate low-voltage wire harnesses of different wire diameters; however, this inevitably makes the sealing of the wire inlet 110 poor.

[0037] In an exemplary embodiment, please refer to Figure 2 and Figure 3 The provided incoming line assembly 200 for the plug-in distribution box is integrally formed and made of elastic material; the incoming line assembly 200 includes a lower shell matching structure 210, which is used to match and connect with the incoming line port 110 set on the lower shell 100 of the plug-in distribution box, and the lower shell matching structure 210 is provided with a wire-accommodating fixing structure 220; the wire-accommodating fixing structure 200 is a hollow structure, which is used for passing the wire harness 300 and fixing the wire harness 300.

[0038] Please refer to Figure 4 , is a structural diagram of an embodiment of an inlet assembly for a plug-in type power distribution box from one viewing angle when assembled. Figure 1 and Figure 4 When using the incoming line assembly of the plug-in distribution box provided in this embodiment, during use, first install the incoming line assembly 200 to the position of the incoming line port 110 so that it fits with the incoming line port 110 to improve the sealing of the plug-in distribution box; the incoming line assembly 200 is integrally formed so that there is no gap between the lower shell matching structure 210 and the wire-holding fixing structure 220; the lower shell matching structure 210 is matched and connected with the incoming line port 110 and is provided with a wire-holding fixing structure 220 for passing the wire harness 300 and fixing the wire harness 300, so that after the wire harness 300 is passed through, the gap between the incoming line port 110 and the wire harness 300 is greatly reduced, thereby improving the sealing of the plug-in distribution box; the incoming line assembly 200 is made of elastic material, which is convenient for designing into a special-shaped structure that is matched and connected with the incoming line port 110, and can reduce the friction loss with the incoming line port 110 and the wire harness 300; the incoming line assembly 200 is made of elastic material, which is convenient for installation and disassembly of the incoming line assembly 200. By comparison Figure 1 and Figure 4It can be clearly seen that the use of the incoming line assembly 200 provided in the embodiment of the present application can greatly improve the sealing performance of the plug-in distribution box.

[0039] In a possible implementation, after the wire harness 300 is passed through the wire-accommodating fixing structure 220 and is inserted into the inside of the distribution box, adhesive tape can be used to fix the wire harness 300 and the wire-accommodating fixing structure 220 together, thereby further improving the sealing of the plug-in distribution box. In a possible implementation, when the wire diameter of the wire harness 300 is much smaller than the diameter of the wire-accommodating fixing structure 220, after the wire harness 300 is passed through the wire-accommodating fixing structure 220 and is inserted into the inside of the distribution box, a filling medium such as foam cotton can be used to fill the gap between the wire harness 300 and the wire-accommodating fixing structure 220, thereby further improving the sealing of the plug-in distribution box. In this way, the above-mentioned incoming line assembly 200 for the plug-in distribution box can effectively avoid the problem of wire leakage and sand and stone entering the incoming line port 110, thereby achieving the effects of reliable fixation, safe protection, effective dust prevention and overall beauty.

[0040] Furthermore, the incoming line assembly 200 is integrally formed, and the assembly structure is consistent, which can effectively avoid line leakage, different gap sizes, etc. caused by different configurations.

[0041] In an exemplary embodiment, the material of the incoming line assembly 200 is rubber. Using rubber as the material of the incoming line assembly 200 improves the wear resistance of the incoming line assembly 200 and reduces the manufacturing cost of the incoming line assembly 200.

[0042] In other exemplary embodiments, the material of the incoming line assembly 200 may also be other elastic materials, such as polyurethane elastomer, or silicone rubber.

[0043] Please refer to Figure 5 , is a second perspective diagram of an embodiment of an inlet assembly for a plug-in type power distribution box in an assembled state. In an exemplary embodiment, in combination with Figure 2 , Figure 3 and Figure 5 The lower shell matching structure 210 includes a first matching substructure 211 and a second matching substructure 212 .

[0044] The first matching substructure 211 is used to fit with the edge of the wire inlet 110 of the plug-in distribution box, and the second matching substructure 212 is connected to the first matching substructure 211 and is used to have an interference fit with the cavity of the wire inlet 110 of the plug-in distribution box.

[0045] The first matching substructure 211 is fitted with the edge of the inlet 110, so that the first matching substructure 211 and the inlet 110 can be connected tightly and firmly, while maintaining a certain degree of precision and detachability; the second matching substructure 212 is interference-fitted with the cavity of the inlet 110 to firmly install the inlet assembly 200. Figure 1 , the line inlet 110 is an open structure, and the lower edge is an arc shape; Figure 2 , Figure 3 and Figure 5 The outer shape of the second matching substructure 212 is cylindrical or approximately cylindrical, and its outer diameter is slightly larger than the inner diameter of the edge of the cavity of the inlet port 11, so as to achieve an interference fit between the second matching substructure 212 and the cavity of the inlet port 110; at the same time, the inlet assembly 200 is made of elastic material as a whole, which is easy to assemble.

[0046] In an exemplary embodiment, in combination Figures 2 to 5 , the lower shell matching structure 210 includes a third matching substructure 213. The third matching substructure 213 is connected to the first matching substructure 211, and is used to fit with the inlet baffle 120 provided on the lower shell 100 of the plug-in type distribution box to improve the fit between the inlet assembly 200 and the inlet 110. Exemplarily, the axial cross-section of the third matching substructure 213 is a combination of a rectangle and a right-angled trapezoid; in the assembled state, one side of the right-angled waist of the right-angled trapezoid in the third matching substructure 213 is close to the inlet baffle 120.

[0047] In an exemplary embodiment, Figure 2 As shown, the wire holding structure 220 includes a semicircular slot 221 and a circular cavity 222. The semicircular slot 221 is arranged on a side of the lower shell matching structure 210 away from the plug-in type distribution box in the installed state, and the circular cavity 222 is connected to the semicircular slot 221 and arranged in the lower shell matching structure 210.

[0048] The circular cavity 222 provides a passage for the wire harness 300 , and the semicircular slot 221 facilitates fixing the wire harness 300 . The semicircular slot 221 is located outside the plug-in distribution box during assembly to guide the wire harness 300 into the wire inlet 110 .

[0049] In a possible implementation manner, when the wire harness 300 is inserted into the plug-in distribution box, an adhesive tape is used to fix the wire harness at the position of the semicircular slot 221 .

[0050] The radius of the circular cavity 222 can be determined based on the wire diameter of the plug-in distribution box. In one possible implementation, the radius of the circular cavity 222 and the semicircular slot 221 are the same; this makes it easy to manufacture and facilitates the wiring and fixing of the wire harness 300. In another possible implementation, the radius of the circular cavity 222 is slightly larger or slightly smaller than the radius of the semicircular slot 221.

[0051] Please refer to Figure 6 , is a schematic diagram of an inner perspective of a plug-in type power distribution box in an assembled state of an incoming line assembly in an embodiment. In an exemplary embodiment, in combination with Figure 6 , the incoming line assembly 200 also includes an in-box wire-passing structure 230. The in-box wire-passing structure 230 is connected to the wire-holding fixing structure 220, and is arranged on a side of the lower shell matching structure 210 close to the plug-in distribution box in the installed state. The in-box wire-passing structure 230 is a hollow structure. For example, the cavity radius of the in-box wire-passing structure 230 can be consistent with the radius of the circular cavity 222, which is convenient for manufacturing and the threading of the wire harness 300; for example, the cavity radius of the in-box wire-passing structure 230 can also be slightly larger than or slightly smaller than the radius of the circular cavity 222.

[0052] When the wire harness enters the lower shell 100 of the plug-in distribution box through the incoming wire assembly 200 provided in this embodiment, the wire passing structure 230 in the box can provide a direction trend for the wire harness 300 in the lower shell 100, thereby constraining the overall direction of the wire harness 300.

[0053] In a possible implementation, the radii of the circular cavity 222, the semicircular slot 221 and the wire-passing structure 230 in the box are consistent, and the value range is 12 mm to 16 mm; the axial length L1 of the semicircular slot 221 is in the range of 16 mm to 20 mm, and the axial length L2 of the wire-passing structure 230 in the box is in the range of 18 mm to 22 mm.

[0054] Preferably, the radius of the circular cavity 222, the semicircular slot 221 and the inner wire passing structure 230 is 14 mm. Preferably, the axial length L1 of the semicircular slot 221 is 18.028 mm, and the axial length L2 of the inner wire passing structure 230 is 21.213 mm.

[0055] It should be noted that the embodiment of the present application does not impose specific restrictions on the radius of the circular cavity 222, the semicircular slot 221, and the wire passing structure 230 in the box. In an optional embodiment, in the actual production and application process, various different radius sizes of the incoming line assembly 200 can be produced to improve the compatibility of the incoming line assembly 200 with the plug-in distribution box.

[0056] In an exemplary embodiment, a line-in assembly 200 for a plug-in distribution box is provided, which is integrally formed and made of rubber material. The line-in assembly 200 includes: a lower shell matching structure 210, a line-containing fixing structure 220 and an in-box line-passing structure 230.

[0057] Among them, the lower shell mating mechanism 210 is used to cooperate and connect with the wire inlet 110 set on the lower shell 100 of the plug-in distribution box; the lower shell mating structure 210 is provided with a hollow wire-holding fixing structure 220; the lower shell fixing structure 210 includes a first mating substructure 211, a second mating substructure 212 and a third mating substructure 213.

[0058] Among them, the first matching substructure 211 is used to fit with the edge of the wire inlet 110 of the plug-in distribution box; the second matching substructure 212 is connected to the first matching substructure 211 for interference fit with the cavity of the wire inlet 110 of the plug-in distribution box; the third matching substructure 213 is connected to the first matching substructure 211 for fitting with the wire inlet baffle 120 set on the lower shell 100 of the plug-in distribution box.

[0059] The wire holding structure 220 includes a semicircular slot 221 and a circular cavity 222. The semicircular slot 221 is arranged on a side of the lower shell matching structure 210 away from the plug-in distribution box in the installed state; the circular cavity 222 is connected to the semicircular slot 221 and is arranged in the lower shell matching structure 210.

[0060] The box body wire passing structure 230 is connected to the wire holding and fixing structure 220 and is arranged on a side of the lower shell matching structure 210 close to the plug-in type distribution box in the installed state.

[0061] Among them, the radius of the semicircular slot 221 ranges from 12 mm to 16 mm, the axial length of the semicircular slot 221 ranges from 16 mm to 20 mm, and the axial length of the wire passing structure 230 in the box ranges from 18 mm to 22 mm.

[0062] The present application also provides a plug-in distribution box; please refer to Figures 2 to 6 The plug-in distribution box includes a lower shell 100 and an incoming line assembly 200; wherein the incoming line assembly 200 is integrally formed and made of elastic material, the incoming line assembly 200 includes a lower shell matching structure 210 and a line-accommodating fixing structure 220, the lower shell matching structure 210 is matched and connected with the incoming line port 110 provided on the lower shell 100, and the lower shell matching structure 210 is provided with a line-accommodating fixing structure 220; the line-accommodating fixing structure 220 is a hollow structure for allowing the wiring harness 300 to pass through and fixing the wiring harness 300.

[0063] In an exemplary embodiment, a cable tie hole 130 is provided on the shell wall at the position of the cable inlet 110 of the lower shell 100. In this embodiment, a cable tie can be used to pass through the cable tie hole 130 to fix the lower shell matching structure 210, thereby improving the firmness of the installation of the cable inlet assembly 210. Exemplarily, the number of the cable tie holes 130 can be multiple, which can be 2, 3 or 4.

[0064] In an exemplary embodiment, the material of the incoming line assembly 200 is rubber.

[0065] In an exemplary embodiment, the lower shell mating mechanism 210 includes a first mating substructure 211 and a second mating substructure 212; wherein the first mating substructure 211 is used to fit with the edge of the wire inlet port on the lower shell 100, and the second mating substructure 212 is connected to the first mating substructure for interference fit with the wire inlet port body.

[0066] In an exemplary embodiment, the lower shell matching structure 210 includes a third matching substructure 213 connected to the first matching substructure 211 ; the third matching substructure 213 fits snugly with the inlet baffle 120 provided on the lower shell 100 .

[0067] In an exemplary embodiment, the wire-holding fixing structure 220 includes a semicircular slot 221 and a circular cavity 222 ; wherein the semicircular slot 221 is disposed on the outside of the plug-in distribution box; the circular cavity 222 is connected to the semicircular slot 221 and is disposed in the lower shell mating structure 210 .

[0068] In an exemplary embodiment, the incoming line assembly 200 further includes an in-box wire passing structure 230 ; wherein the in-box wire passing structure 230 is connected to the wire holding and fixing structure 220 , and is disposed on the inner side of the plug-in type distribution box.

[0069] In an exemplary embodiment, the radius of the semicircular slot 221 is consistent with the radius of the circular cavity 222, ranging from 12 mm to 16 mm, and the axial length of the semicircular slot 221 ranges from 16 mm to 20 mm; the axial length of the wire passing structure 230 in the box ranges from 18 mm to 22 mm.

[0070] In an exemplary embodiment, there are multiple incoming line assemblies 200. The lower shell matching mechanism 210 of each incoming line assembly 200 has the same appearance structure and is matched and connected with the incoming line port 110; the inner diameter of the circular cavity 222 of the wire holding and fixing structure 220 of each incoming line assembly 200 is different to adapt to the wire harness 300 of different wire diameters.

[0071] An embodiment of the present application also provides a vehicle, comprising the plug-in distribution box provided in the above embodiment.

[0072] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A line inlet assembly for a plug-in distribution box, characterized in that: The inlet assembly is integrally formed and made of elastic material, and the inlet assembly comprises: The lower shell matching structure is used to match and connect with the line inlet provided on the lower shell of the plug-in type distribution box, and the lower shell matching structure is provided with a line holding and fixing structure; The wire-holding and fixing structure is a hollow structure, which is used for passing the wire harness through and fixing the wire harness.

2. The line inlet assembly according to claim 1, characterized in that: The material of the incoming line assembly is rubber.

3. The line inlet assembly according to claim 1, characterized in that: The lower shell matching structure includes a first matching substructure and a second matching substructure; The first mating substructure is used to fit with the edge of the line inlet of the plug-in distribution box; The second mating substructure is connected to the first mating substructure and is used for interference fit with the line inlet cavity of the plug-in distribution box.

4. The line inlet assembly according to claim 3, characterized in that: The lower shell matching structure includes a third matching substructure, which is connected to the first matching substructure and is used to fit with the line inlet baffle provided on the lower shell of the plug-in distribution box.

5. The line inlet assembly according to claim 1, characterized in that: The wire-holding fixing structure comprises a semicircular slot and a circular cavity; The semicircular slot is arranged on a side of the lower shell matching structure away from the plug-in type distribution box in the installed state; The circular cavity is connected to the semicircular slot and is arranged in the lower shell matching structure.

6. The line inlet assembly according to claim 5, characterized in that: The incoming line assembly also includes an in-box wire passing structure; The wire passing structure in the box is connected to the wire holding and fixing structure, and is arranged on a side of the lower shell matching structure close to the plug-in type distribution box in the installed state.

7. The line inlet assembly according to claim 6, characterized in that: The radius of the semicircular slot is in the range of 12 mm to 16 mm, the axial length of the semicircular slot is in the range of 16 mm to 20 mm, and the axial length of the wire passing structure in the box is in the range of 18 mm to 22 mm.

8. A plug-in distribution box, characterized in that: The plug-in distribution box comprises a lower shell and an incoming line assembly for the plug-in distribution box as described in any one of claims 1-7.

9. The plug-in type distribution box according to claim 8, characterized in that: The shell wall at the wire inlet position of the lower shell is provided with a tie hole.

10. A vehicle, characterized in that: The vehicle comprises a plug-in distribution box as claimed in claim 8 or 9.

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