High-voltage wiring harness fixing clamp with adjustable aperture

Abstract

The utility model discloses a high-voltage wire harness fixing clamp with an adjustable aperture, the wire fixing clamp is fixed on the side wall of a base connected with a wire harness, and the wire fixing clamp comprises a group of clamping blocks, a plurality of aperture pads and at least two fasteners; the group of clamping blocks comprises a first wire clamping block and a second wire clamping block, a plurality of half holes are formed in the opposite side surfaces of the first wire clamping block and the second wire clamping block, and the plurality of half holes in the first wire clamping block and the plurality of half holes in the second wire clamping block are correspondingly arranged and combined to form a plurality of accommodating cavities; according to the utility model, through the cooperation of the aperture pads and the accommodating cavities, the wire harnesses with different sizes can be fixed, specifically, the wire harnesses are directly guided into the corresponding accommodating cavities, and once the wire harnesses move relative to the aperture pads in the corresponding accommodating cavities, the aperture pads in the accommodating cavities are replaced, so that the wire harnesses can be fixed. Therefore, the wire harness is limited by the replaced aperture pad, that is, the wire harness of which the size is not matched with that of the accommodating cavity can be fixed without adjusting and replacing the accommodating cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a high-voltage wire harness fixing clamp with adjustable aperture. Background Art

[0002] With growing awareness of environmental protection, more and more traditional fuel-powered vehicles are being replaced by new energy vehicles. These vehicles rely on the motor as their core power source. Because motors in vehicles are often exposed to vibration and shaking, the wiring harnesses connected to them also experience vibration and shaking at varying frequencies depending on road conditions. Over time, friction between the wiring harness sheath and the motor or other vehicle components can cause damage.

[0003] Therefore, existing new energy vehicle motors are generally equipped with a wire clamp to secure the high-voltage wiring harness to the motor body. This wire clamp is usually composed of two parts, each with a semicircular groove corresponding to the thickness of the wire harness. When the two clamps are combined, they form a clamp with a hole. The wire harness passes through the clamp and is locked together with bolts to secure it to the motor base or end cap.

[0004] Representatively, in the prior art, such as the Chinese patent document with application number CN201921292211.1, a combined new energy vehicle high-voltage wire harness fixing pipe clamp is disclosed, which records that a limiting cavity is formed by enclosing an upper wire clamp block and a lower wire clamp block, and the high-voltage wire harness is arranged through the limiting cavity. After the upper wire clamp mounting plate and the lower wire clamp mounting plate are closed and fixed, the high-voltage wire harness is limited and fixed by the limiting cavity. Due to the diversified setting of the limiting cavity size, high-voltage wire harnesses of different sizes can be limited and fixed, and the fixed pipe clamp is easy to install and disassemble, and has high stability in limiting and fixing the high-voltage wire harness.

[0005] Although the technical solution disclosed in the above patent document solves the problem of how to limit and fix high-voltage wire harnesses of different sizes without replacing the clips, it still has limitations in actual operation:

[0006] The technical solution disclosed in the above patent document is to limit and fix the high-voltage wire harness by setting a variety of limiting cavity sizes. If the number of high-voltage wire harnesses is large, the lengths of the upper clamping block and the lower clamping block will be longer, and this will lead to the situation where there is insufficient space for arranging the clamping blocks. The longer clamping blocks mean that there are larger intervals between adjacent limiting cavities of the same aperture. In this way, during use, the tail end of the high-voltage wire harness is greatly bent and subjected to greater tension, so there is a probability of damage.

[0007] Therefore, how to solve the above-mentioned deficiencies in the prior art has become the subject to be studied and solved in this utility model. Utility Model Content

[0008] The utility model provides a high-voltage wire harness fixing clamp with adjustable aperture, aiming to solve the technical problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a high-voltage wire harness fixing clamp with adjustable aperture, the fixing clamp is fixed to the side wall of the machine base connected to the wire harness, and the fixing clamp includes: a group of clamping blocks, multiple aperture pads and at least two fasteners;

[0010] The set of clamping blocks includes a first clamping block and a second clamping block, and the first clamping block and the second clamping block are each provided with a plurality of half holes on a surface opposite to each other, and the plurality of half holes on the first clamping block and the plurality of half holes on the second clamping block are arranged correspondingly and combined to form a plurality of accommodating cavities for accommodating the wiring harness;

[0011] The aperture pads are elastic, and each aperture pad is correspondingly arranged in each accommodating cavity;

[0012] The fastener acts on the first clamping block and the second clamping block to connect and clamp the two;

[0013] When in use, the wiring harness is placed in the corresponding accommodating cavity.

[0014] The aperture pad is located between the outer periphery of the wire harness and the inner side wall of the accommodating cavity; by replacing the aperture pad, the wire harness can be restricted and fixed relative to the first clamping block.

[0015] According to a further technical solution, the aperture pad includes two semicircular pads that are combined to form a match with the accommodating cavity, and the two semicircular pads are respectively positioned and connected in the corresponding two half holes.

[0016] According to a further technical solution, a groove is provided in each half hole to limit the aperture pad.

[0017] According to a further technical solution, ribs are provided on the outer peripheral wall of the aperture pad at positions corresponding to the grooves, so as to be inserted into the grooves.

[0018] A further technical solution is that the second wire clamping block and the first wire clamping block are attached to each other on one side to form a clamping fitting surface, and a positioning structure is provided between the clamping fitting surfaces of the second wire clamping block and the first wire clamping block to position the second wire clamping block and the first wire clamping block.

[0019] A further technical solution is that the positioning structure is composed of a concave groove and a convex block, and the concave groove and the convex block can correspond to each other and be combined to form a concave and convex groove position, and at least one of the concave groove and the convex block is set on the second clamping block or the first clamping block.

[0020] A further technical solution is to use the clamping direction of the second clamping block and the first clamping block as a reference, and the center of the half hole exceeds the clamping fitting surface, so that when the second clamping block and the first clamping block are fitted, the center of the half hole on the first clamping block is misaligned with the center of the half hole on the second clamping block.

[0021] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this case. They are only used to distinguish components or operations described with the same technical terms.

[0022] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct or indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0023] The terms “include”, “including”, “have”, etc. used in this document are open-ended terms, meaning including but not limited to.

[0024] Unless otherwise noted, the terms used herein generally have their ordinary meanings in the art, in the context of this application, and in the specific context. Certain terms used to describe this application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art regarding the description of this application.

[0025] The terms "front", "back", "up", "down", "left", "right", etc. used in this article are all directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection plan of this case and the specific direction during actual implementation.

[0026] The working principle and advantages of this utility model are as follows:

[0027] The utility model can realize the operation of fixing wire harnesses of different sizes through the cooperation of the aperture pad and the accommodating cavity. Specifically, the wire harness is directly guided into the corresponding accommodating cavity. Once the wire harness moves relative to the aperture pad in the corresponding accommodating cavity, it means that the interval distance is greater than the thickness of the aperture pad. At this time, the aperture pad in the accommodating cavity is replaced so that the wire harness is restricted by the replaced aperture pad. That is, under the restriction of the aperture pad whose thickness matches the interval distance, the wire harness whose size does not match the accommodating cavity can be fixed without adjusting or replacing the accommodating cavity. The whole operation does not have high requirements on the size of the wire clamp and does not occupy much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Attachment Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Attachment Figure 2 This is a schematic diagram of the wire clamp structure in the utility model;

[0030] Attachment Figure 3 This is a schematic structural diagram of the second wire clamping block in the present utility model;

[0031] Attachment Figure 4 This is a schematic diagram of the semicircular pad structure in the present invention.

[0032] In the above figures: 1. Wire clamp; 2. First wire clamping block; 3. Second wire clamping block; 4. Half hole; 5. Aperture pad; 6. Semicircular pad; 7. Groove; 8. Raised rib; 9. Concave groove; 10. Bump; 11. Machine base; 12. Bolt; 13. High-voltage wire harness; 14. Junction box; 15. Waterproof nut sleeve. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0034] Embodiment: The present invention will be clearly illustrated below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0035] The terms used herein are for describing specific embodiments only and are not intended to be limiting of the present invention. Singular forms such as "a," "the," "this," "this," and "the" as used herein also include plural forms.

[0036] See attached Figures 1-4 As shown, a high-voltage wire harness clamp with adjustable aperture, the clamp 1 is fixed to the side wall of the base 11 connected to the wire harness, characterized in that the clamp 1 includes: a set of clamping blocks, multiple aperture pads 5 and at least two fasteners;

[0037] This set of clamping blocks includes a first clamping block 2 and a second clamping block 3. The surfaces of the first clamping block 2 and the second clamping block 3 on one side opposite to each other are each provided with a plurality of half holes 4. The plurality of half holes 4 on the first clamping block 2 and the plurality of half holes 4 on the second clamping block 3 are arranged correspondingly and combined to form a plurality of accommodating cavities for accommodating the wiring harness.

[0038] The aperture pad 5 is an elastic body (specifically, it can be made of rubber, silicone or other materials), and each aperture pad 5 is respectively arranged in each receiving cavity;

[0039] All fasteners act on the first clamping block 2 and the second clamping block 3, and connect and clamp the two;

[0040] When in use, the wiring harness is placed in the corresponding accommodating cavity.

[0041] The aperture pad 5 is located between the outer periphery of the wire harness and the inner side wall of the accommodating cavity; by replacing the aperture pad 5 , the wire harness can be restricted and fixed relative to the first clamping block 2 .

[0042] Generally, the specific way of connecting the second wire clamping block 3 with the first wire clamping block 2 by fasteners can be selected from screw fixing, pin fixing and plug-in clearance fit fixing. The above-provided fixing methods are the more widely used methods in this application, but are not limited to the above three types. As long as the second wire clamping block 3 and the first wire clamping block 2 can be detachably connected, and the second wire clamping block 3 and the first wire clamping block 2 will not fall off at will after connection, it will be fine.

[0043] The aperture pad 5 is located between the outer periphery of the wire harness and the inner wall of the accommodating cavity and can adjust its own thickness according to the distance between the outer periphery of the wire harness and the inner wall of the accommodating cavity. The adjustment methods are: 1. Setting corresponding aperture pads 5 according to the spacing of the spacing, so that there are multiple aperture pads 5. When in use, select an aperture pad 5 of appropriate thickness according to the current spacing distance; 2. Compared with the first method, only one aperture pad 5 is set, but the aperture pad 5 can be adjusted by injecting or extracting fluid.

[0044] The present invention can achieve the operation of fixing wire harnesses of different sizes through the cooperation of the aperture pad 5 and the accommodating cavity. Specifically, the wire harness is directly guided into the corresponding accommodating cavity. Once the wire harness moves relative to the aperture pad 5 in the corresponding accommodating cavity, it means that the interval distance is greater than the thickness of the aperture pad 5. At this time, the aperture pad 5 in the accommodating cavity is replaced so that the wire harness is restricted by the replaced aperture pad 5. That is, under the restriction of the aperture pad 5 whose thickness matches the interval distance, the wire harness whose size does not match the accommodating cavity can be fixed without adjusting or replacing the accommodating cavity.

[0045] Specifically, after the second clamping block 3 is fixed to the first clamping block 2, it can be fixed to the motor base 11 by fasteners (specifically, bolts 12 can be selected as fasteners). At the same time, the wiring harness is a high-voltage wiring harness 13. One end of the high-voltage wiring harness 13 is connected to the power supply system of the vehicle, and the other end is connected to the inside of the junction box 14 on the motor. The junction box 14 is fixed to the base 11. Before entering the junction box 14, it must be sealed with a waterproof nut sleeve 15.

[0046] In some specific embodiments, in order to facilitate the replacement of the aperture pad 5 , the aperture pad 5 includes two semicircular pads 6 that are combined to form a matching accommodating cavity, and the two semicircular pads 6 are respectively positioned and connected in the corresponding two half holes 4 .

[0047] The aperture pad 5 is made into two combined semicircular pads 6, which can make the aperture pad 5 more convenient to replace.

[0048] Specifically, the second clamping block 3 and the first clamping block 2 may be in full contact with each other, or a certain gap may be left therebetween. Whether a gap is left or not should be determined according to the diameter of the wire harness.

[0049] In some specific embodiments, a groove 7 is provided in each half hole 4 to limit the aperture pad 5 .

[0050] Since the aperture pad 5 is disposed within the half-hole 4, once the wiring harness undergoes axial movement within the half-hole 4, it is easy for the aperture pad 5 to slide out of the half-hole 4 with it. Therefore, to solve this problem, a groove 7 is provided to limit the aperture pad 5 so that the aperture pad 5 is constrained within the half-hole 4. (The axial movement is limited in direction based on the axial direction of the half-hole 4, and the length of the groove 7 can be exactly equal to the length of the aperture pad 5, that is, the entire aperture pad 5 is constrained by the groove 7. However, this approach has certain requirements for the thickness of the aperture pad 5, that is, the thickness of the aperture pad 5 needs to be greater than the depth of the groove 7, and space for elastic deformation of the aperture pad 5 must be reserved).

[0051] In some specific embodiments, ribs 8 are provided at positions on the outer peripheral wall of the aperture pad 5 corresponding to the groove 7 , so as to be inserted into the groove 7 .

[0052] Since the thickness of the aperture pad 5 is designed, if the aperture pad 5 needs to be completely inserted into the groove 7, the thickness of the aperture pad 5 cannot be well controlled, and a lot of material will be wasted. In order to solve this problem, a rib 8 is provided to be stuck into the groove 7, so that the aperture pad 5 can be limited at the same time without affecting the thickness of the aperture pad 5.

[0053] In some specific embodiments, the second clamping block 3 and the opposite side of the first clamping block 2 are bonded to each other to form a clamping fitting surface, and a positioning structure is provided between the clamping fitting surfaces of the second clamping block 3 and the first clamping block 2 for positioning the second clamping block 3 and the first clamping block 2.

[0054] In some specific embodiments, the positioning structure is composed of a concave groove 9 and a convex block 10. The concave groove 9 and the convex block 10 can correspond to each other and be combined to form a concave and convex groove position. At least one of the concave groove 9 and the convex block 10 is set on the second clamping block 3 or the first clamping block 2.

[0055] The arrangement of the concave groove 9 and the convex block 10 is as follows:

[0056] 1. Only the concave groove 9 is provided on the second clamping block 3, and only the convex block 10 is provided on the first clamping block 2;

[0057] 2. Only the protrusion 10 is provided on the second clamping block 3, and only the concave groove 9 is provided on the first clamping block 2;

[0058] 3. Reference Figure 3 A concave groove 9 and a convex block 10 are simultaneously provided on the second clamping block 3, and the concave groove 9 and the convex block 10 are symmetrically arranged about the center line in the width direction of the wire clamp 1. At the same time, the first clamping block 2 is correspondingly provided with a convex block 10 and a concave groove 9.

[0059] The cooperation between the protrusion 10 and the recess 9 prevents the second clamping block 3 and the first clamping block 2 from easily moving relative to each other when they are fitted together, and also serves to limit the axial position of the wiring harness. With the axial direction of the half hole 4 as a reference, the positioning structure performs radial and axial positioning during positioning.

[0060] Specifically, refer to Figure 3 , it can be seen that the clamping surface of the second clamping block 3 is provided with a concave groove 9 and a convex block 10, and the concave groove 9 and the convex block 10 are symmetrically arranged about the center line in the width direction of the clamp 1. At the same time, the first clamping block 2 can be provided with a convex block 10 and a concave groove 9, wherein the groove bottom surface and the three inner side walls of the concave groove 9 are respectively in contact with the bottom end surface and three side surfaces of the convex block 10;

[0061] After correspondingly contacting one by one, the cooperation between the bottom surface of the groove and the bottom end surface can be used for radial positioning, while the cooperation between the inner side walls of the three grooves and the three side surfaces can be used for axial positioning.

[0062] In some specific embodiments, based on the clamping direction of the second clamping block 3 and the first clamping block 2, the center of the half hole 4 exceeds the clamping fitting surface, so that when the second clamping block 3 and the first clamping block 2 are fitted, the center of the half hole 4 on the first clamping block 2 is misaligned with the center of the half hole 4 on the second clamping block 3.

[0063] Since the center of the half hole 4 on the first clamping block 2 is misaligned with the center of the half hole 4 on the second clamping block 3, the half hole 4 on the first clamping block 2 and the half hole 4 on the second clamping block 3 will not form a complete circle after being combined. In other words, due to the different diameters of the wiring harness, if the half hole 4 on the first clamping block 2 and the half hole 4 on the second clamping block 3 form a complete circle after being combined, it means that only one wiring harness can be adapted. Once a larger wiring harness is encountered, a distance will be generated between the second clamping block 3 and the first clamping block 2.

[0064] If the shape does not form a circle (for example, an ellipse), it means that when encountering a larger diameter harness, the second clamping block 3 and the first clamping block 2 can be fixed normally without easily generating a gap. In addition, a certain axial pre-tightening force is applied to the harness during tightening.

[0065] Working principle:

[0066] Directly connect one end of the high-voltage wire harness 13 to the power supply system of the car, and the other end to the junction box 14 on the motor. The junction box 14 is fixed to the base 11. Before entering the junction box 14, it must be sealed with a waterproof nut sleeve 15. After that, guide the high-voltage wire harness 13 through the corresponding position of the accommodation cavity (refer to Figure 1 ), once the wiring harness moves relative to the aperture pad 5 in the corresponding accommodating cavity, it means that the distance between the outer periphery of the wiring harness and the inner wall of the accommodating cavity is greater than the thickness of the aperture pad 5. At this time, the aperture pad 5 in the accommodating cavity is replaced so that the wiring harness is restricted by the replaced aperture pad 5. That is, under the restriction of the aperture pad 5 whose thickness matches the spacing distance, the wiring harness whose size does not match the accommodating cavity can be fixed without adjusting or replacing the accommodating cavity.

[0067] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A high-voltage wire harness clamp with adjustable aperture, wherein the clamp (1) is fixed to a side wall of a machine base (11) connected to the wire harness, and is characterized in that: The wire clamp (1) comprises: a group of clamping blocks, a plurality of aperture pads (5) and at least two fasteners; The group of clamping blocks includes a first clamping block (2) and a second clamping block (3), and a plurality of half holes (4) are provided on the surface of one side opposite to the second clamping block (3), and the plurality of half holes (4) on the first clamping block (2) and the plurality of half holes (4) on the second clamping block (3) are arranged correspondingly and combined to form a plurality of accommodating cavities for accommodating wire harnesses; The aperture pad (5) is an elastic body, and each aperture pad (5) is respectively arranged in each accommodating cavity; The fastener acts on the first wire clamping block (2) and the second wire clamping block (3) to connect and clamp the two; When in use, the wiring harness is placed in the corresponding accommodating cavity, and the aperture pad (5) is located between the outer periphery of the wiring harness and the inner side wall of the accommodating cavity; by replacing the aperture pad (5), the wiring harness can be restricted and fixed relative to the first clamping block (2).

2. The high-voltage wire harness clamp with adjustable aperture according to claim 1, characterized in that: The aperture pad (5) comprises two semicircular pads (6) that are combined to form a matching accommodation cavity, and the two semicircular pads (6) are respectively positioned and connected in the corresponding two half holes (4).

3. The high-voltage wire harness clamp with adjustable aperture according to claim 1, characterized in that: A groove (7) is provided in each half hole (4) for limiting the aperture pad (5).

4. The high-voltage wire harness clamp with adjustable aperture according to claim 3, characterized in that: A convex rib (8) is provided at a position corresponding to the outer peripheral wall of the aperture pad (5) and the groove (7) for being inserted into the groove (7).

5. The high-voltage wire harness clamp with adjustable aperture according to claim 1, characterized in that: The second clamping block (3) and the first clamping block (2) are attached to each other on opposite sides to form a clamping fitting surface, and a positioning structure is provided between the clamping fitting surfaces of the second clamping block (3) and the first clamping block (2) for positioning the second clamping block (3) and the first clamping block (2).

6. The high-voltage wire harness clamp with adjustable aperture according to claim 5, characterized in that: The positioning structure is composed of a concave groove (9) and a convex block (10), and the concave groove (9) and the convex block (10) can be positioned and combined with each other to form a concave and convex groove position, and at least one of the concave groove (9) and the convex block (10) is provided on the second clamping block (3) or the first clamping block (2).

7. The high-voltage wire harness clamp with adjustable aperture according to claim 5, characterized in that: Taking the clamping direction of the second clamping block (3) and the first clamping block (2) as a reference, the center of the half hole (4) exceeds the clamping fitting surface, so that when the second clamping block (3) and the first clamping block (2) are fitted together, the center of the half hole (4) on the first clamping block (2) and the center of the half hole (4) on the second clamping block (3) are misaligned.

Images