New energy automobile high-voltage wire harness fixing clamp

Abstract

The utility model discloses a high-voltage wire harness fixing clamp for a new energy automobile. The fixing clamp comprises a fixing shell, a rotating shell and a side connecting piece which are made of injection molding materials. A plurality of arc-shaped lower pipe grooves are formed in the middle of a lower clamping body of the fixing shell, a plurality of arc-shaped lower clamping edges are formed on the inner groove wall of each lower pipe groove, and an outer clamping groove is formed in the outer end of the lower clamping body. A plurality of arc-shaped upper pipe grooves are formed in the middle of the lower portion of an upper clamping body of the rotating shell, a plurality of arc-shaped upper clamping edges are formed on the inner groove wall of each upper pipe groove, outer clamping claws matched with the outer clamping grooves are formed at the lower outer end of the upper clamping body, and the lower pipe grooves and the upper pipe grooves form clamping pipe holes for fixing corrugated pipes of the high-voltage wiring harness. The upper clamping edge and the lower pipe edge form a clamping ring for clamping the corrugated pipe; and the upper end of the side connecting piece is connected with the upper clamping body. The utility model has the effects that the load of the new energy automobile is reduced, the assembly is easy, the production cost is reduced, the vibration resistance, the safety and the stability are improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of new energy wire harness fixing, in particular to a high-voltage wire harness fixing clamp for new energy vehicles. Background Art

[0002] With the increasing attention paid to environmental protection around the world, the development of new energy vehicles is getting faster and faster. The main power source of new energy vehicles is the electric motor, and the electric motor needs to transmit electricity through a high-voltage wire harness. Therefore, the fixing method of the high-voltage wire harness has an important impact on the performance and safety of new energy vehicles. In existing new energy vehicles, metal clamps are usually used to fix the high-voltage wire harness in the sleeve in the corrugated tube. The defects are: first, the weight of the metal clamp is large, which increases the burden of the new energy vehicle and also increases the production cost; second, the assembly process of the metal clamp is relatively complicated and requires a lot of man-hours; third, new energy vehicles will be affected by various vibrations during driving, and the fixing method of the metal clamp cannot adapt to the corrugated tube well, resulting in the high-voltage wire harness being easily displaced in a vibration environment, affecting the stable transmission of electricity. Utility Model Content

[0003] In order to solve one or more of the above problems, the utility model provides a high-voltage wire harness fixing clamp for new energy vehicles.

[0004] According to one aspect of the utility model, the new energy vehicle high voltage wire harness fixing clamp comprises: a fixing shell, a rotating shell and a side connecting piece made of injection molding material;

[0005] A plurality of arc-shaped lower tube grooves with upper openings are arranged in the middle of the lower clamping body of the fixed shell, a plurality of arc-shaped lower clamping edges are formed on the inner groove wall of each lower tube groove, and an outer clamping groove is formed on the outer end of the lower clamping body;

[0006] A plurality of arc-shaped upper tube grooves with lower openings are arranged in the middle of the upper clamping body of the rotating shell, and the inner groove wall of each upper tube groove forms a plurality of arc-shaped upper clamping edges, and the lower outer end of the upper clamping body forms an outer clamping claw that matches the outer clamping groove. When the outer clamping claw is clamped and fixed to the outer clamping groove, the lower tube groove and the upper tube groove are opposite to each other to form a clamping tube hole for fixing the corrugated tube, and the upper clamping edge and the lower tube edge are opposite to each other to form a clamping ring for clamping the corrugated tube;

[0007] The lower end of the side link is connected to the upper end of the lower clamp body and the upper end is connected to the upper end of the upper clamp body, and external force can be applied to make the outer claw and the outer groove clamped and fixed or separated from each other;

[0008] The high-voltage wire harness is inserted into the corrugated tube and fixed therein.

[0009] In some embodiments, the lower clamp edge and the upper clamp edge are vertically opposite or axially staggered.

[0010] In some embodiments, an upper chamfer is provided at the upper end of the lower edge, and a lower chamfer is formed at the lower end of the upper edge.

[0011] In some embodiments, at least one position-limiting and fool-proofing column is formed on the upper surface of the lower clamp body, and an upper positioning hole that cooperates with a sleeve of equal diameter to the position-limiting and fool-proofing column is formed on the lower surface of the upper clamp body.

[0012] In some embodiments, a truncated cone-shaped positioning end is formed at the upper end of the position-limiting anti-foolproofing column, and a truncated cone-shaped guiding groove is formed at the lower end of the upper positioning hole.

[0013] In some embodiments, the limit-stop anti-fool pillars are formed on the lower docking surfaces on both sides of the lower tube groove, and the upper positioning holes are formed on the upper docking surfaces of the outer claws.

[0014] When the outer clamping claw is clamped and fixed to the outer clamping groove, the upper docking surface fits the lower docking surface, the limit anti-mistake column is inserted into the upper positioning hole, the lower tube groove and the upper tube groove fit together to form a clamping tube hole; the upper clamping edge and the lower tube edge fit together to form a clamping ring.

[0015] In some embodiments, the inner groove at the inner end of the lower clamp body is engaged with the inner claw of the upper clamp body.

[0016] In some embodiments, the side ties are flexible injection molded sheets.

[0017] In some embodiments, a connecting ear plate extends outward from the inner side surface of the outer end of the lower clamp body, and a mounting hole is provided in the connecting ear plate; or a lateral rib plate is integrally connected between the front and rear ends of the lower clamp body and the connecting ear plate.

[0018] In some embodiments, the fixed shell, the rotating shell and the side connecting parts are formed by integral injection molding of PA66 nylon plastic or GF30 glass fiber reinforced polypropylene composite plastic.

[0019] The new energy vehicle high-voltage wire harness fixing clamp is made of lightweight injection molding material, and is provided with upper and lower clamping edges separated from each other to clamp the corrugated tube. The beneficial effects are: first, the clamp made of lightweight injection molding material is lighter than the traditional metal clamp, which can effectively reduce the burden of new energy vehicles. At the same time, the injection molding material is corrosion-resistant and reduces production costs; second, the structure only needs to place the high-voltage wire harness with the corrugated tube in the lower pipe groove of the lower clamp body, and rotate the upper clamp body to clamp the two. Therefore, the clamp structure after the optimized structure is simple and easy to assemble, and the injection molding is convenient to install. The assembly process of plastic parts is relatively simple, which can greatly reduce assembly hours, improve production efficiency, reduce production costs, and is suitable for large-scale production; thirdly, the upper and lower clamping edges that are separated from each other clamp the corrugated tube, which can effectively fix the high-voltage wire harness on the corrugated tube to prevent it from shifting in a vibration environment, ensuring stable power transmission and improving the safety of new energy vehicles; fourthly, the injection molding material and the clamp ring structure can further improve the vibration resistance, which can effectively cope with various vibrations of new energy vehicles during driving, ensuring the stability of the high-voltage wire harness and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram of a high-voltage wire harness fixing clamp for a new energy vehicle according to an embodiment of the utility model;

[0021] Figure 2 for Figure 1 The schematic cross-sectional view of the fixing clamp of the high-voltage wire harness of the new energy vehicle is shown;

[0022] Figure 3 for Figure 1 The three-dimensional exploded schematic diagram of the high-voltage wire harness fixing clamp for new energy vehicles is shown;

[0023] Fixed shell 1, lower clamping body 10, lower pipe groove 100, lower clamping edge 101, upper chamfer 102, lower docking surface 103, limit anti-fool column 11, positioning end 111, outer clamping groove 12, accommodating groove 121, combining slot hole 122, inner clamping groove 13, connecting ear plate 14, mounting hole 141, lateral rib plate 15;

[0024] Rotating shell 2, upper clamping body 20, upper tube groove 200, upper clamping edge 201, lower chamfer 202, upper docking surface 203, upper positioning hole 21, guide groove 211, outer clamping claw 22, vertical protrusion 221, triangular guide locking block 222, inner clamping claw 23,

[0025] Side connecting piece 3; process groove 4; first reinforcing rib plate 5. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] Figures 1 to 3 A schematic diagram shows a high-voltage wire harness fixing clamp for new energy vehicles according to an embodiment of the utility model. As shown in the figure, the high-voltage wire harness fixing clamp for new energy vehicles includes: a fixing shell 1 made of injection molding material, a rotating shell 2 and a side connecting piece 3;

[0028] A plurality of arc-shaped lower pipe grooves 100 with upper openings are provided in the middle of the lower clamping body 10 of the fixed shell 1. The inner groove wall of each lower pipe groove 100 forms a plurality of protruding arc-shaped lower clamping edges 101. The outer end of the lower clamping body 10 forms an outer clamping groove 12.

[0029] A plurality of arc-shaped upper tube grooves 200 with lower openings are provided in the middle of the upper clamping body 20 of the rotating shell 2. The inner groove wall of each upper tube groove 200 forms a plurality of arc-shaped upper clamping edges 201. The lower outer end of the upper clamping body 20 forms an outer clamping claw 22 that matches the outer clamping groove 12. When the outer clamping claw 22 is clamped and fixed to the outer clamping groove 12, the lower tube groove 100 and the upper tube groove 200 are relatively formed to form a clamping tube hole for fixing the corrugated tube, and the upper clamping edge 201 and the lower clamping edge 101 are relatively formed to form a clamping ring for clamping the corrugated tube.

[0030] The lower end of the side link 3 is connected to the inner end of the lower clamp body 10 and the upper end is connected to the inner end of the upper clamp body 20. Applying external force can make the outer claw 22 and the outer slot 12 clamped and fixed or separated from each other.

[0031] Among them, the high-voltage wire harness is fixed in the corrugated tube through the sleeve.

[0032] Apply external force to rotate the rotating shell 2 upward to open, and place the corrugated tube through which the high-voltage wire harness is sleeved in the lower tube groove 103. Apply external force to rotate the rotating shell 2 downward, and the outer claw 22 is clamped in the outer clamping groove 12, clamping the tube hole to fix the corrugated tube up and down, and the clamping ring clamps the corrugated tube up and down.

[0033] The new energy vehicle high-voltage wire harness fixing clamp is made of lightweight injection molding material, and is provided with upper and lower clamping edges separated from each other to clamp the corrugated tube. The beneficial effects are: first, the clamp made of lightweight injection molding material is lighter than the traditional metal clamp, which can effectively reduce the burden of new energy vehicles. At the same time, the injection molding material is corrosion-resistant and reduces production costs. Second, the structure only needs to place the high-voltage wire harness with the corrugated tube in the lower tube groove 100 of the lower clamp body 10, and rotate the upper clamp body 20 to clamp the two. Therefore, the clamp structure after the optimized structure is simple and easy to install. First, the assembly process of injection molded parts is relatively simple, which can greatly reduce assembly hours, improve production efficiency, reduce production costs, and is suitable for large-scale production; third, the upper and lower clamping edges that are separated from each other clamp the corrugated tube, which can effectively fix the high-voltage wire harness on the corrugated tube to prevent it from shifting in a vibration environment, ensure stable power transmission, and improve the safety of new energy vehicles; fourth, the injection molding material and the clamp ring structure can further improve the anti-vibration performance, which can effectively cope with various vibrations of new energy vehicles during driving, ensure the stability of the high-voltage wire harness, and extend its service life.

[0034] Furthermore, the lower clamping edge 101 and the upper clamping edge 201 can be arranged vertically opposite to each other;

[0035] Preferably, the lower clamping edge 101 and the upper clamping edge 201 can also be arranged in a staggered manner; or the lower clamping edge 101 and the upper clamping edge 201 in the middle are directly opposite to each other up and down, and the lower clamping edges 101 and the upper clamping edges 201 on both sides can also be arranged in an axially staggered manner. Its beneficial effect is that the above arrangement can be more suitable for the fixed connection application of the corrugated pipe and improve the anti-vibration performance. Preferably, an upper chamfer 102 is provided at the upper end of the lower clamping edge 101, and a lower chamfer 202 is formed at the lower end of the upper clamping edge 201; the chamfer structure can protect the corrugated pipe during assembly. Preferably, the lower clamping edge 101 is arranged at equal intervals on the inner groove wall of the lower tube groove 100, and the upper clamping edge 201 is arranged at equal intervals on the inner groove wall of the upper tube groove 200. Its beneficial effect is that the equal spacing arrangement can optimize the stress distribution.

[0036] Furthermore, at least one position-limiting anti-fool column 11 is formed on the upper surface of the lower clamp body 10, and an upper positioning hole 21 that cooperates with a sleeve of equal diameter to the position-limiting anti-fool column 11 is formed on the lower surface of the upper clamp body 20. When the outer clamping claw 22 is engaged with the fixed outer clamping slot 12, the position-limiting anti-fool column 11 is inserted into the upper positioning hole 21. The beneficial effect is that the configuration of the position-limiting anti-fool column 11 and the positioning hole 22 can ensure the assembly accuracy and position accuracy, and prevent position displacement during use. Preferably, a truncated cone-shaped positioning end 111 is formed at the upper end of the position-limiting anti-fool column 11, and a truncated cone-shaped guide groove 211 is formed at the lower end of the upper positioning hole 21. The beneficial effect is that the positioning end 11 and the guide groove 211 can improve the feasibility of assembly.

[0037] Further, lower docking surfaces 103 are formed on both sides of each lower tube groove 100, upper docking surfaces 203 are formed between each upper tube groove 200, the position-limiting foolproofing column 11 is formed on the lower docking surface 103, and the upper positioning hole 21 is formed on the upper docking surface 203. When the outer clamping claw 22 is clamped and fixed to the outer clamping groove 12, the upper docking surface 203 fits the lower docking surface 103, the position-limiting foolproofing column 11 is inserted into the upper positioning hole 21, and the opposite end surfaces of the lower tube groove 100 and the upper tube groove 200 fit together to form a circumferentially closed clamping tube hole; the opposite end surfaces of the upper clamping edge 201 and the lower clamping edge 101 fit together to form a circumferentially closed clamping ring. Its beneficial effect is that: this arrangement can further improve the positioning accuracy and fixing accuracy.

[0038] Furthermore, a limit-stop anti-fool-proofing column 11 is provided in the middle of the lower docking surface 103 at the inner end of the outermost lower tube groove 100, and two limit-stop anti-fool-proofing columns 11 are symmetrically provided on the lower docking surface 103 at the outer end thereof, and the two limit-stop anti-fool-proofing columns 11 are symmetrically arranged on both sides of the outer card slot 12.

[0039] An upper positioning hole 21 is provided in the middle of the upper docking surface 203 at the inner end of the outermost upper tube groove 200 , and two upper positioning holes 21 are symmetrically provided on the upper docking surface 203 at the outer end thereof. The two upper positioning holes 21 are symmetrically arranged at both ends of the outer claw 22 .

[0040] Further, an outer slot 12 is formed on the lower docking surface 103 at the outer end of the lower clamp body 10, and an outer claw 22 is formed on the upper docking surface 203 at the outer end of the upper clamp body 20. Preferably, an inner slot 13 is formed on the lower docking surface 103 at the inner end of the lower clamp body 10; an inner claw 23 is formed on the upper docking surface 203 at the inner end of the upper clamp body 20, and when the outer claw 22 is clamped and fixed to the outer slot 12, the inner claw 23 is clamped to the inner slot 13. The beneficial effect is: double-end clamping, higher connection strength.

[0041] Preferably, the outer claw 22 comprises a vertical protrusion 221 integrally extending downward from the middle of the outer end of the lower surface of the upper clamp body 20, and a triangular guide locking block 222 in the shape of a barb is formed on the outer side of the lower end of the vertical protrusion 202;

[0042] The outer card slot 12 includes a first receiving slot 121 formed by extending upward from the middle of the outer end of the upper surface of the lower clamp body 10, and a coupling slot hole 122 is formed on the outer side of the lower end of the first receiving slot 121. The vertical protrusion 221 enters the first receiving slot 121, and the triangular guide locking block 222 is clamped in the coupling slot hole 122. Among them, the inner claw 23 and the inner card slot 13 are respectively the same in structure as the outer claw 22 and the outer card slot 12, and the size is the same or different. Its beneficial effect is that the claw and the card slot are convenient for locking.

[0043] Furthermore, the side link 3 is a bendable injection-molded sheet, the lower end of the side link 3 is integrally injection-molded to connect the upper inner end of the lower clamp 10, and the upper end is integrally injection-molded to connect the lower inner end of the upper clamp 20; preferably, the injection-molded sheet is bent into a U-shaped structure. The beneficial effects are: the side link 3 serves as a connecting rib of the upper and lower structures, ensuring the integral injection molding of the product, facilitating molding and manufacturing, simplifying the assembly of parts, reducing the number of separated materials, optimizing storage and transportation, and making it more convenient to place materials on the production line and take them during assembly.

[0044] In another embodiment, the side link 3 is a U-shaped spring leaf, the lower end of which is connected to both sides of the inner slot 13 at the inner end of the lower clamp body 10 and the upper end of which is connected to the inner claw 23 at the inner end of the upper clamp body 10 .

[0045] Furthermore, a connecting ear plate 14 extends outward from the inner side surface of the outer end of the lower clamp body 10, and a mounting hole 141 is provided in the connecting ear plate 14. The beneficial effect is that this arrangement facilitates the connection of the external fixing member.

[0046] Preferably, a lateral rib plate 15 is integrally connected between the front and rear outer ends of the lower clamp body 10 and the connecting ear plate 14. The beneficial effect is that the lateral rib plate 15 can improve the overall structural strength.

[0047] Furthermore, the fixed shell 1, the rotating shell 2 and the side connecting member 3 are integrally injection-molded from PA66 nylon plastic or GF30 glass fiber reinforced polypropylene composite material; the beneficial effects are: good mechanical properties and chemical stability, low price, and suitable for large-scale production.

[0048] Preferably, the outer sides of the fixed shell 1 and the rotating shell 2 are provided with a process groove 4 with an irregular profile, and a first reinforcing rib plate 5 is provided in the process groove 4. The beneficial effect is that the structure can ensure strength while reducing weight.

[0049] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. The high-voltage wire harness fixing clamp for new energy vehicles is characterized by: It comprises: a fixed shell (1), a rotating shell (2) and a side connecting piece (3) made of injection-molded material; A plurality of arc-shaped lower tube grooves (100) with upper openings are provided in the middle of the lower clamping body (10) of the fixed shell (1), a plurality of arc-shaped lower clamping edges (101) are formed on the inner groove wall of each lower tube groove (100), and an outer clamping groove (12) is formed on the upper outer end of the lower clamping body (10); A plurality of arc-shaped upper tube grooves (200) with lower openings are provided in the middle of the upper clamp body (20) of the rotating shell (2), and the inner groove wall of each of the upper tube grooves (200) forms a plurality of arc-shaped upper clamping edges (201). An outer claw (22) matching with the outer clamping groove (12) is formed at the lower outer end of the upper clamp body (20). When the outer clamping claw (22) is clamped and fixed to the outer clamping groove (12), the lower tube groove (100) and the upper tube groove (200) are relatively formed to form a clamping tube hole for fixing the corrugated tube, and the upper clamping edge (201) and the lower clamping edge (101) are relatively formed to form a clamping ring for clamping the corrugated tube. The lower end of the side link (3) is connected to the inner end of the lower clamp body (10) and the upper end is connected to the inner end of the upper clamp body (20), and the application of external force can cause the outer clamping claw (22) and the outer clamping groove (12) to be clamped and fixed or to be separated from each other; The high-voltage wire harness is inserted into the corrugated tube and fixed therein.

2. The high-voltage wire harness fixing clamp for new energy vehicles according to claim 1 is characterized in that: The lower clamping edge (101) and the upper clamping edge (201) are vertically opposite or axially staggered.

3. The high-voltage wire harness fixing clamp for new energy vehicles according to claim 2 is characterized in that: An upper chamfer (102) is provided at the upper end of the lower clamping edge (101), and a lower chamfer (202) is formed at the lower end of the upper clamping edge (201).

4. The high-voltage wire harness fixing clamp for new energy vehicles according to claim 1, characterized in that: At least one position-limiting anti-fool-proofing column (11) is formed on the upper surface of the lower clamp body (10), and an upper positioning hole (21) that cooperates with a sleeve of equal diameter to the position-limiting anti-fool-proofing column (11) is formed on the lower surface of the upper clamp body (20).

5. The high-voltage wire harness fixing clamp for new energy vehicles according to claim 4, characterized in that: A truncated cone-shaped positioning end (111) is formed at the upper end of the position-limiting anti-mistake column (11), and a truncated cone-shaped guiding groove (211) is formed at the lower end of the upper positioning hole (21).

6. The high-voltage wire harness fixing clamp for new energy vehicles according to claim 5, characterized in that: The position-limiting anti-foolproofing columns (11) are formed on the lower docking surfaces (103) on both sides of the lower tube groove (100), and the upper positioning holes (21) are formed on the upper docking surfaces (203) of the outer claws (22). When the outer clamping claw (22) is clamped and fixed to the outer clamping groove (12), the upper docking surface (203) fits the lower docking surface (103), the limit-stop anti-mistake column (11) is inserted into the upper positioning hole (21), the lower tube groove (100) and the upper tube groove (200) fit together to form a clamping tube hole; the upper clamping edge (201) and the lower clamping edge (101) fit together to form a clamping ring.

7. The high-voltage wire harness fixing clamp for new energy vehicles according to claim 6, characterized in that: The inner clamping groove (13) at the inner end of the lower clamping body (10) is clamped with the inner clamping claw (23) of the upper clamping body (20).

8. The high-voltage wire harness fixing clamp for new energy vehicles according to claim 1, characterized in that: The side link (3) is a bendable injection-molded sheet.

9. The high-voltage wire harness fixing clamp for new energy vehicles according to claim 1, characterized in that: A connecting ear plate (14) extends outward from the inner side surface of the outer end of the lower clamp body (10), and a mounting hole (141) is provided in the connecting ear plate (14); or lateral rib plates (15) are integrally connected between the front and rear outer ends of the lower clamp body (10) and the connecting ear plate (14).

10. The high-voltage wire harness fixing clamp for new energy vehicles according to any one of claims 1 to 9, characterized in that: The fixed shell (1), the rotating shell (2) and the side connecting piece (3) are integrally formed by injection molding of PA66 nylon plastic or GF30 glass fiber reinforced polypropylene composite plastic.

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