Wire harness fixing support and high voltage control box

Abstract

The application relates to the technical field of automobile parts, and provides a wire harness fixing support and a high-voltage control box. The wire harness fixing support comprises a base, a supporting structure and a limiting structure; the base is used for mounting the wire harness fixing support at a target position; the supporting structure is detachably connected with the base, and the supporting structure is used for fixing a wire harness; the limiting structure is arranged between the base and the supporting structure, and is used for limiting the relative movement of the base and the supporting structure. The wire harness fixing support provided by the application can be adjusted according to the length of the wire harness, so that the wire harness support of different lengths can be met, wire harness abrasion is reduced, the insulation performance of the wire harness is enhanced, and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a wiring harness fixing bracket and a high-voltage control box. Background Technology

[0002] Currently, wiring in the control box of new energy vehicles can be routed either at the bottom or along the side wall. When the components inside the control box occupy less space, the wiring harness arrangement area is relatively spacious, and both of the above wiring methods are applicable. However, with the increasing integration of vehicles, the voltage platform increases, and the number of high-voltage interfaces also increases. This leads to insufficient space inside the control box, making wiring harness arrangement difficult.

[0003] In related technologies, when wire harnesses are fixed from the base plate to components such as busbars and relays, they are usually bundled and secured to the components nearby. However, due to the voltage inconsistency between the wire harness and the fixing location, there is a risk of insulation failure when the wire harness wears down. Utility Model Content

[0004] Therefore, it is necessary to provide a wire harness fixing bracket that can be adjusted according to the length of the wire harness to meet the needs of wire harnesses of different lengths, reduce wire harness wear, enhance wire harness insulation performance, and extend service life.

[0005] A wire harness fixing bracket includes a base, a support structure, and a limiting structure; the base is used to install the wire harness fixing bracket at a target position; the support structure is detachably connected to the base and is used to fix the wire harness; the limiting structure is disposed between the base and the support structure and is used to restrict the relative movement between the base and the support structure.

[0006] Understandably, the detachable connection between the support structure and the base facilitates the replacement of different sized support structures and bases to match the wire harness length, alleviating the problem of the wire harness being suspended due to a mismatch between the support length and the wire harness, thereby reducing the risk of wear caused by the wire harness being suspended. Furthermore, the limiting structure restricts the relative movement between the base and the support structure, further reducing wear caused by fluctuations and shaking of the wire harness. In other words, the wire harness fixing bracket provided in this application utilizes the detachable connection between the support structure and the base to reduce the risk of the wire harness being suspended, and the limiting structure further reduces the risk of wire harness movement, thereby reducing wire harness wear, enhancing wire harness insulation performance, and extending service life.

[0007] In some embodiments, the support structure includes a first end and a second end connected to each other, the first end being detachably connected to the base, and the second end extending in a direction away from the base.

[0008] In some embodiments, the wire harness fixing bracket further includes a locking structure, through which the first end is detachably connected to the base.

[0009] In some embodiments, the base is provided with a mounting hole, the first end is provided with a mounting baffle, and the mounting baffle is provided with a through hole; one end of the locking structure passes through the through hole and the mounting hole and is used to detachably connect the base to the target position, and the other end is pressed against the side of the mounting baffle away from the base.

[0010] In some embodiments, the support structure is provided with guide channels extending along its own extension direction for wire harness insertion.

[0011] In some embodiments, the support structure has an opening on one side along a first direction that connects to the guide channel, and the first direction is angled to the extension direction of the support structure.

[0012] In some embodiments, the wire harness fixing bracket further includes cable ties that are tied to the support structure and used to secure the wire harness at the opening.

[0013] In some embodiments, the edge of the opening is provided with a plurality of limiting holes spaced apart along the extension direction, and the cable ties are passed through at least some of the limiting holes for binding and fixing.

[0014] In some embodiments, the support structure has a central axis, and the limiting structure includes at least one limiting baffle disposed on the base and / or the support structure, the limiting baffle being used to restrict the support structure from rotating relative to the base along a plane perpendicular to the central axis.

[0015] In some embodiments, the limiting structure further includes a limiting protrusion and a limiting groove, one of which is disposed on the support structure and the other on the base. The limiting protrusion is inserted into the limiting groove to restrict the movement of the support structure relative to the base along a plane perpendicular to the central axis.

[0016] In some embodiments, the cross-section of the limiting protrusion is fan-shaped, and a limiting groove is provided on at least one side of the limiting protrusion along the radial direction of the fan-shaped protrusion, and at least one end of the groove wall of the limiting groove is inserted into the corresponding limiting groove.

[0017] In some embodiments, the cross-section of the limiting protrusion is fan-shaped, and the limiting baffle is provided at both ends of the limiting protrusion along its own arc length.

[0018] This application also provides a high-voltage control box, including a box body and the aforementioned wire harness fixing bracket, wherein the wire harness fixing bracket is fixedly installed on the box body via the base. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 An exploded view of a wire harness fixing bracket provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 A bottom view of the provided wire harness mounting bracket;

[0022] Figure 3 A schematic diagram of a wire harness fixing bracket provided in an embodiment of this application;

[0023] Figure 4 A front view of a wire harness fixing bracket provided in an embodiment of this application from the opening;

[0024] Figure 5 This is a partial schematic diagram of a wire harness fixing bracket provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the base in a wire harness fixing bracket provided in one embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the support structure in a wire harness fixing bracket provided in an embodiment of this application;

[0027] Figure 8 This is a front view of the support structure in a wire harness fixing bracket provided in an embodiment of this application, from the open end.

[0028] Figure 9 This is a partial schematic diagram of the base and support structure of a wire harness fixing bracket provided in an embodiment of this application.

[0029] Reference numerals: 100, wire harness fixing bracket; 110, base; 120, support structure; 121, first end; 122, second end; 123, mounting baffle; 124, flange; 130, limiting structure; 131, limiting baffle; 132, limiting protrusion; 133, limiting groove; 134, limiting slot; 140, locking structure; 141, locking post; 142, locking cap; 150, cable tie; 200, wire harness; 1101, mounting hole; 1230, through hole; 1201, guide channel; 1202, opening; 1203, limiting hole. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] It should be noted that when a component is referred to as being "fixed to" or "attached to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 This application provides a wire harness fixing bracket 100, which can be adjusted according to the length of the wire harness to support wire harnesses of different lengths, reduce wire harness wear, enhance wire harness insulation performance, and extend service life. Specifically, the wire harness fixing bracket 100 includes a base 110, a support structure 120, and a limiting structure 130. The base 110 is used to install the wire harness fixing bracket 100 at a target position; the support structure 120 is detachably connected to the base 110 and is used to fix the wire harness 200; the limiting structure 130 is disposed between the base 110 and the support structure 120 and is used to limit the relative movement between the base 110 and the support structure 120.

[0036] For example, the wiring harness fixing bracket 100 can be installed inside the control box, and the location on the control box where the wiring harness fixing bracket 100 needs to be installed is the aforementioned target location. The wiring harness fixing bracket 100 can be fixedly installed to the control box via the base 110, for example, it can be directly fixed to the body of the control box, or fixed to the bottom plate inside the control box. In addition to fixing the wiring harness 200, it can also guide the wiring harness 200 from the bottom plate to extend to components such as busbars and relays.

[0037] Specifically, the wire harness 200 can be fixed to the support structure 120. Compared to directly bundling the wire harness to components, the support structure 120 does not participate in the circuit setup within the control box. Even if the wire harness 200 wears out, it will not affect the circuit components or parts within the control box due to contact with the support structure 120. Moreover, since the support structure 120 is detachably connected to the base 110, it is convenient to replace the support structure 120 with different sizes according to the wire harness length. For example, when the wire harness is long, a longer support structure 120 can be used; conversely, when the wire harness is short, a shorter support structure 120 can be used. This design improves the compatibility between the support structure 120 and the wire harness 200, not only alleviating the waste problem caused by a long support structure 120, but also alleviating the problem of the wire harness 200 being suspended due to a short support structure 120, thereby reducing the risk of wear caused by the wire harness 200 being suspended. Meanwhile, the limiting structure 130 between the base 110 and the support structure 120 ensures stable assembly of the support structure 120 relative to the base 110, reducing the risk of movement of the support structure 120. Therefore, when the wire harness 200 is fixed to the support structure 120, the wire harness 200 can be stably fixed, thereby reducing wear caused by fluctuations and shaking of the wire harness 200.

[0038] In summary, the wire harness fixing bracket 100 provided in this embodiment reduces the wear of the wire harness 200 from different angles by utilizing the detachable connection between the support structure 120 and the base 110, as well as the setting of the limiting structure 130 between the two, thereby enhancing the insulation performance of the wire harness 200 and extending its service life.

[0039] In some specific embodiments, the support structure 120 can be made of an insulating material, so that even if the wiring harness 200 wears down, it will not cause a short circuit or electric shock due to contact with the support structure 120. For example, the support structure 120 can be made of ABS (Acrylonitrile Butadiene Styrene) plastic using 3D printing technology. Alternatively, the support structure 120 can also be made of other plastics, such as polyethylene, polystyrene, polytetrafluoroethylene, etc.

[0040] Furthermore, the base 110 can also be made of insulating material to further enhance the insulation performance of the wire harness fixing bracket 100. For example, the base 110 can be made of epoxy resin. Of course, other resins composed of polymer compounds, such as phenolic resin, polyvinyl chloride resin, etc., can also be used.

[0041] In some other specific embodiments, the base 110 may be made of magnesium-aluminum metal. Magnesium-aluminum metal has high strength, which can ensure a reliable connection between the base 110 and the control box.

[0042] Please see Figures 1 to 5 In some embodiments, the support structure 120 includes a first end 121 and a second end 122 connected to each other. The first end 121 is detachably connected to the base 110, and the second end 122 extends in a direction away from the base 110. The second end 122 is used to fix the wire harness 200, and the extension length of the second end 122 determines the overall length of the support structure 120, thereby adapting to wire harnesses 200 of different lengths. For example, taking the extension direction of the second end 122 as the Z-axis direction as an example. The base 110 is located below the support structure 120 and is detachably connected to the first end 121. The second end 122 extends upward from the first end 121 along the Z-axis direction, thereby forming a columnar support structure 120. In this way, the columnar support structure 120 not only satisfies the need for fixing and supporting the wire harness 200, but also guides the wire harness 200, reducing the risk of messy wiring caused by bending of the wire harness 200. When the wiring harness 200 extends upward from the base plate to components such as busbars or relays, the support structure 120 guides the wiring harness 200 to extend upward, improving the wiring effect.

[0043] It should be noted that the aforementioned sag of the wire harness 200 refers to the portion of the wire harness 200 not fixed to the support structure 120 being in an unsupported state. When the support structure 120 is short, the portion of the wire harness 200 not fixed to the support structure 120 is longer, making it more prone to swaying. Conversely, when the support structure 120 is longer, it can ensure sufficient fixation and support for the wire harness 200, reducing the length of the wire harness 200 not fixed to the support structure 120 and lowering the risk of the wire harness 200 swaying.

[0044] In some embodiments, the length of the support structure 120 along the extension direction Z is between 50mm and 100mm. For example, the length of the support structure 120 along the extension direction Z is 50mm, 60mm, 7mm, 80mm, 90mm, or 100mm. The length of the support structure 120 along the extension direction Z is also related to the space required for wiring within the control box, as long as it does not cause interference and is compatible with the length of the wire harness 200; this is only an example.

[0045] Please continue reading. Figures 1 to 4In some embodiments, the wire harness fixing bracket 100 further includes a locking structure 140, through which the first end 121 is detachably connected to the base 110. Specifically, the locking structure 140 includes a locking post 141 and a locking cap 142 connected to the locking post 141. The locking post 141 has external threads, and the base 110 has a threaded hole. The locking post 141 passes through the first end 121 and is threadedly connected to the wall of the threaded hole. The locking cap 142 can be pressed onto the side of the first end 121 facing away from the threaded hole along the axial direction of the threaded hole. The locking post 141 and the locking cap 142 can be integrally formed; for example, the locking structure 140 can be a screw with a nut. Alternatively, the locking post 141 can be a stud, and the locking cap 142 can be a nut. The detachable connection between the support structure 120 and the base 110 is achieved by the cooperation of the nut and the stud.

[0046] Please see Figures 4 to 8 In some embodiments, the base 110 is provided with a mounting hole 1101, and the first end 121 is provided with a mounting baffle 123, which is provided with a through hole 1230. One end of the locking structure 140 passes through the through hole 1230 and the mounting hole 1101 and is used to detachably connect the base 110 to the target position, while the other end is pressed against the side of the mounting baffle 123 away from the base 110.

[0047] Taking the locking structure 140, which includes a locking pin 141 and a locking cap 142, as an example, the mounting hole 1101 is a threaded hole, and the through hole 1230 is a smooth round hole; moreover, the diameter of the through hole 1230 is slightly larger than the diameter of the locking pin 141 and smaller than the diameter of the locking cap 142. The locking pin 141 passes through the through hole 1230 and mates with the mounting hole 1101 on the base 110. At the same time, the control box is provided with a threaded hole that mates with the locking pin 141. The part of the locking pin 141 that protrudes from the mounting hole 1101 is threadedly connected to the wall of the threaded hole on the control box. As the locking pin 141 is tightened, the locking cap 142 is pressed against the mounting baffle 123 on the side of the mounting baffle 123 that is axially away from the base 110 along the mounting hole 1101. The mounting baffle 123 is pressed against the base 110 under the action of the locking cap 142 and the locking pin 141. Thus, while connecting the support structure 120 to the base 110 via the locking structure 140, the base 110 can also be fixed to the control box. When disassembly is required, loosen the locking pin 141 to move the locking cap 142 away from the mounting baffle 123.

[0048] The locking structure 140 can be a single unit to save assembly and disassembly time. Alternatively, two, three, or other locking structures 140 can be provided and spaced apart to improve connection reliability. The mounting baffle 123 can protrude from the outer side of the first end 121. The mounting baffle 123 can be arranged in a ring shape, with multiple locking structures 140 arranged at intervals along the circumference of the mounting baffle. Alternatively, multiple mounting baffles 123 can be arranged at intervals along the circumference of the mounting hole 1101, with each mounting baffle 123 corresponding to one locking structure 140. The design only needs to satisfy the requirement of achieving a detachable connection between the support structure 120 and the base 110 through the cooperation of the mounting baffle 123 and the locking structure 140; this is merely an example.

[0049] In other embodiments, the first end 121 can be detachably connected to the base 110 via a snap-fit ​​connection. In this case, the base 110 can also be fixedly connected to the control box by screws.

[0050] Please see Figure 1 , Figure 3 , Figure 5 and Figure 7 In some embodiments, the support structure 120 is provided with a guide channel 1201 extending along its own extension direction Z, the guide channel 1201 for the wire harness 200 to pass through. The guide channel 1201 can accommodate part of the wire harness 200, thereby saving space when the wire harness is bundled through the wire harness fixing bracket 100; and, this arrangement can also guide and support the wire harness 200. Alternatively, the support structure 120 can also be provided as a solid columnar structure, with the wire harness bundled on the outside of the support structure 120.

[0051] The guide channel 1201 can be configured to penetrate the support structure 120 along its extension direction Z, facilitating the insertion of the wire harness 200. Alternatively, the guide channel 1201 can not penetrate the support structure 120. In this case, the support structure 120 needs to have two wiring holes connected to the guide channel 1201, spaced apart along the extension direction Z, for the introduction and exit of the wire harness 200. Alternatively, the support structure 120 can have an opening 1202 connected to the guide channel 1201, through which the wire harness 200 is inserted into the guide channel 1201.

[0052] Furthermore, the aforementioned mounting baffle 123 can be connected to the outside of the guide channel 1201 or it can be located inside the guide channel 1201. It only needs to be able to cooperate with the locking structure 140 to achieve a detachable connection with the base 110.

[0053] Please continue reading. Figure 1 , Figure 3 , Figure 5 and Figure 7In some embodiments, the support structure 120 has an opening 1202 on one side along the first direction X, which connects to the guide channel 1201. The first direction X is angled to the extension direction of the support structure 120. When the support structure 120 is cylindrical, the first direction can be the radial direction of the cylinder, specifically... Figure 1 and Figure 3 The X-axis direction is shown. This arrangement causes the cross-section of the support structure 120 to be fan-shaped. This facilitates the insertion of the wire harness 200 into the guide channel 1201 through the opening 1202, and reduces size restrictions on the wire harness 200, allowing for the securing of more wire harnesses 200. The length of the opening 1202 along the extension direction Z can be the same as the overall length of the support structure 120. Alternatively, the length of the opening 1202 along the extension direction Z can be the same as the length of the second end 122 along the extension direction Z, in which case only the cross-section of the second end 122 is fan-shaped.

[0054] like Figure 4 , Figure 5 and Figure 7 As shown, in some specific embodiments, the guide channel 1201 extends through the support structure 120 along the extension direction Z. The length of the opening 1202 is adapted to the length of the guide channel 1201. The mounting baffle 123 is disposed within the guide channel 1201 and connected to the first end 121. This arrangement ensures convenient installation of the wire harness 200 while providing sufficient space for easy disassembly and assembly of the locking structure 140. The first end 121, the second end 122, and the mounting baffle 123 can be integrally formed, or the first end 121 and the second end 122 can be integrally formed, with the mounting baffle 123 bonded to the first end 121. This is merely an example.

[0055] Furthermore, the central angle of the fan-shaped annulus of the support structure 120 is greater than 180°, so that the support structure 120 tapers at the opening 1202, thereby constraining the wire harness 200 passing through the guide channel 1201. For example, the central angle of the fan-shaped annulus can be 200°, 215°, 225°, 230°, 250°, 260°, etc. The angle of the central angle corresponding to the opening 1202 is between 90° and 180°, excluding 180°; for example, the degree of the central angle corresponding to the opening 1202 is 90°, 110°, 120°, 135°, etc. Through this arrangement, while ensuring convenient passage of the wire harness 200 relative to the guide channel 1201, a good constraining effect on the wire harness 200 is also guaranteed.

[0056] Please see Figure 3 , Figure 4 , Figure 5 and Figure 7In some embodiments, the wire harness fixing bracket 100 further includes cable ties 150, which are tied to the support structure 120 and used to fix the wire harness 200 at the opening 1202. That is, after the wire harness 200 passes through the guide channel 1201, the cable ties 150 are used to bind it to the support structure 120, thereby restraining the wire harness 200 from the opening 1202, preventing the wire harness 200 from detaching from the support structure 120, and improving the fixing effect. When disassembly is required, the cable ties 150 can be untied.

[0057] Multiple cable ties 150 are provided and arranged at Z-intervals along the extension direction to further improve connection reliability. The side of the cable tie 150 facing the wire harness 200 may have a rough texture to increase friction with the wire harness 200. Of course, the channel wall of the guide channel 1201 may also have a rough texture, as long as it ensures a reliable connection between the wire harness 200 and the support structure 120. This is merely an example.

[0058] Please continue reading. Figure 3 , Figure 4 , Figure 7 and Figure 8 In some embodiments, the edge of the opening 1202 is provided with a plurality of limiting holes 1203 spaced apart along the extension direction Z. Cable ties 150 are passed through at least some of the limiting holes 1203 for binding and fixing. Specifically, the support structure 120 also has a flange 124 extending outward from the edge of the opening 1202. The length of the flange 124 extends along the extension direction Z of the support structure 120, and a plurality of limiting holes 1203 are spaced apart on the flange 124. Each limiting hole 1203 can be used to pass through a cable tie 150, thereby constraining the binding position of the cable tie 150 relative to the support structure 120 through the limiting holes 1203, preventing the cable tie 150 from sliding relative to the support structure 120 and affecting the binding effect.

[0059] Please see Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 9 In some embodiments, the support structure 120 has a central axis. The limiting structure 130 includes at least one limiting baffle 131, which is disposed on the base 110 and / or the support structure 120. The limiting baffle 131 is used to restrict the rotation of the support structure 120 relative to the base 110 along a plane perpendicular to the central axis. Wherein, if the central axis is arranged in a vertical direction, the plane perpendicular to the central axis is a horizontal plane. That is to say, by using the setting of the limiting baffle 131, the rotation of the support structure 120 relative to the base 110 in the horizontal plane can be limited, thereby improving the assembly stability of the support structure 120 relative to the base 110 and reducing the shaking of the wiring harness.

[0060] Taking the cross-section of the support structure 120 as an example of a fan-shaped ring, a limiting baffle 131 can be protruding from the base 110 on the side facing the support structure 120. The limiting baffle 131 can abut against the edge of the opening 1202 of the support structure 120 to play a limiting role. In some specific embodiments, two limiting baffles 131 can be protruding from the base 110 and arranged circumferentially at intervals along the mounting hole 1101. The two limiting baffles 131 can abut against the two edges of the opening 1202 respectively to limit the movement.

[0061] Alternatively, a limiting baffle 131 can be provided at the edge of the opening 1202 of the support structure 120, and a limiting baffle 131 can be protruding on the base 110. The abutment of the two limiting baffles 131 serves as a limiting function. Two limiting baffles 131 are provided on the base 110, forming a slot together. The limiting baffle 131 on the support structure 120 is inserted into the slot to satisfy rotational limiting. Of course, it is also possible that only the support structure 120 has a limiting baffle 131, for example, a limiting baffle 131 can be provided at the bottom of the mounting baffle 123, and the limiting baffle 131 is inserted into the base 110 for rotational limiting. This is only an example.

[0062] In other embodiments, one of the base 110 and the support structure 120 may be provided with a positioning post, and the other with a positioning hole. The positioning post and the positioning hole are used to achieve assembly and positioning of the support structure 120 relative to the base 110. For example, the base 110 may have a protruding positioning post, and the first end 121 of the support structure 120 may have a recessed positioning hole; conversely, the base 110 may have a recessed positioning hole, and the first end 121 of the support structure 120 may have a protruding positioning post.

[0063] Please see Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9 In some embodiments, the limiting structure 130 further includes a limiting protrusion 132 and a limiting groove 133. One of the limiting protrusion 132 and the limiting groove 133 is provided on the support structure 120 and the other is provided on the base 110. The limiting protrusion 132 is inserted into the limiting groove 133 to limit the movement of the support structure 120 relative to the base 110 along a plane perpendicular to the central axis.

[0064] Specifically, the limiting protrusion 132 protrudes from the base 110 along the extension direction Z towards the support structure 120, and the limiting groove 133 is recessed from the end face of the first end 121 away from the second end 122 along the extension direction Z towards the direction away from the base 110. When the support structure 120 is assembled relative to the base 110, the limiting protrusion 132 can be inserted into the limiting groove 133, and the limiting protrusion 132 abuts against the groove wall of the limiting groove 133 to restrict the movement of the support structure 120 relative to the base 110 in the horizontal plane, further improving the connection reliability between the support structure 120 and the base 110. Alternatively, the limiting groove 133 can be recessed in the base 110, and the limiting protrusion 132 can protrude from the first end 121 of the support structure 120, as long as it can satisfy the limitation of movement in the horizontal plane.

[0065] The limiting protrusion 132 is arranged in an arc shape around the axis of the mounting hole 1101. The insertion and engagement of the limiting protrusion 132 and the limiting groove 133 can limit the swaying of the support structure 120 along the radial direction of the mounting hole 1101 and maintain uniform force. In some specific embodiments, the arc length of the limiting protrusion 132 along the circumference of the mounting hole 1101 is the same as the arc length of the support structure 120. The limiting groove 133 is arranged as a through groove along the circumference of the mounting hole 1101. The two side walls of the limiting protrusion 132 along the radial direction of the mounting hole 1101 abut against the two groove walls of the limiting groove 133 along the radial direction of the mounting hole 1101, significantly increasing the limiting range and thus significantly improving the limiting effect.

[0066] like Figure 9 As shown, in some embodiments, the cross-section of the limiting protrusion 132 is fan-shaped, and limiting baffles 131 are provided at both ends of the limiting protrusion 132 along its own arc length. That is, the limiting groove 133 can be provided as a through groove that passes through the first end 121 circumferentially along the mounting hole 1101. The limiting baffles 131 protrude radially from both sides of the limiting protrusion 132 along the radial direction of the mounting hole 1101. In this way, the bidirectional limiting of the support structure 120 can be satisfied, further improving the assembly stability and reliability.

[0067] Alternatively, the arc lengths of both the limiting protrusion 132 and the limiting groove 133 can be smaller than the arc length of the supporting structure 120. In this case, when the limiting protrusion 132 and the limiting groove 133 are inserted into each other, not only do the two side walls of the limiting protrusion 132 along the radial direction of the mounting hole 1101 abut against the two groove walls of the limiting groove 133 along the radial direction of the mounting hole 1101, but also the two side walls of the limiting protrusion 132 along the circumferential direction of the mounting hole 1101 abut against the two groove walls of the limiting groove 133 along the circumferential direction of the mounting hole 1101. In this way, not only radial movement along the mounting hole 1101 can be restricted, but also circumferential rotation along the mounting hole 1101 can be restricted.

[0068] like Figure 9As shown, in some embodiments, the cross-section of the limiting protrusion 132 is fan-shaped. Along the radial direction of the fan-shaped protrusion, a limiting groove 134 is provided on at least one side of the limiting protrusion 132, and at least one end of the groove wall of the limiting groove 133 is inserted into the corresponding limiting groove 134.

[0069] Specifically, the limiting protrusion 132 and the mounting hole 1101 are coaxially arranged. The base 110 has a limiting groove 134 recessed on the radially inward side of the limiting protrusion 132. The first end 121 forms a limiting groove 133, with the groove wall end protruding downward along the Z-axis direction, extending into the mounting baffle 123, facilitating insertion into the limiting groove 134. Thus, the insertion and engagement of the groove wall end with the limiting groove 134, and the aforementioned insertion and engagement of the limiting protrusion 132 with the limiting groove 133, achieves dual limiting, resulting in more stable assembly. Alternatively, the area of ​​the base 110 located at the edge of the mounting hole 1101 can protrude along the axial direction of the mounting hole 1101 (i.e., the extension direction Z) towards the side closer to the support structure 120, to jointly form the limiting groove 134 with the limiting protrusion 132. The depth of the limiting groove 134 is less than the depth of the limiting groove 133.

[0070] Alternatively, the base 110 may also have a limiting groove 134 recessed on the radially outward side of the limiting protrusion 132, with the radially outward end of the limiting groove 133 inserted into the corresponding limiting groove 134. Or, the base 110 may have limiting grooves 134 recessed on both radially outward sides of the limiting protrusion 132. This is merely an example.

[0071] Please see Figures 1 to 5 This application also provides a high-voltage control box, including a box body and the aforementioned wire harness fixing bracket 100. The wire harness fixing bracket 100 is fixedly installed on the box body via a base 110. Specifically, the box body has a base plate for supporting circuit components, and the base plate has threaded holes. The base 110 is pressed onto the base plate, and a locking structure 140 passes through the mounting hole 1101 and engages with the threaded hole on the base plate, thereby satisfying the fixed connection between the wire harness fixing bracket 100 and the box body. Of course, the base 110 may also have a protruding connecting lug, and a screw may pass through the connecting lug to connect to the box body. This is only an example.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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 embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A wire harness fixing bracket, characterized in that, include: The base (110) is used to install the wire harness fixing bracket (100) at the target position; A support structure (120) is detachably connected to the base (110), and the support structure (120) is used to fix the wire harness (200). A limiting structure (130) is disposed between the base (110) and the support structure (120), and the limiting structure (130) is used to restrict the relative movement of the base (110) and the support structure (120).

2. The wire harness fixing bracket according to claim 1, characterized in that, The support structure (120) includes a first end (121) and a second end (122) connected to each other. The first end (121) is detachably connected to the base (110), and the second end (122) extends in a direction away from the base (110).

3. The wire harness fixing bracket according to claim 2, characterized in that, The wire harness fixing bracket (100) also includes a locking structure (140), and the first end (121) is detachably connected to the base (110) through the locking structure (140).

4. The wire harness fixing bracket according to claim 3, characterized in that, The base (110) is provided with a mounting hole (1101), and the first end (121) is provided with a mounting baffle (123), and the mounting baffle (123) is provided with a through hole (1230). One end of the locking structure (140) passes through the through hole (1230) and the mounting hole (1101) and is used to detachably connect the base (110) to the target position, and the other end is pressed onto the side of the mounting baffle (123) away from the base (110).

5. The wire harness fixing bracket according to any one of claims 1 to 4, characterized in that, The support structure (120) is provided with a guide channel (1201) extending along its own extension direction (Z), and the guide channel (1201) is used for the wire harness (200) to pass through.

6. The wire harness fixing bracket according to claim 5, characterized in that, The support structure (120) has an opening (1202) on one side along the first direction (X) that connects to the guide channel (1201), and the first direction (X) is set at an angle to the extension direction (Z) of the support structure (120).

7. The wire harness fixing bracket according to claim 6, characterized in that, The wire harness fixing bracket (100) also includes a cable tie (150) which is tied to the support structure (120) and used to fix the wire harness (200) at the opening (1202).

8. The wire harness fixing bracket according to claim 7, characterized in that, The opening (1202) has a plurality of limiting holes (1203) spaced apart along the extension direction (Z) at its edge, and the cable tie (150) passes through at least a portion of the limiting holes (1203) to secure it.

9. The wire harness fixing bracket according to any one of claims 1 to 4, characterized in that, The support structure (120) has a central axis, and the limiting structure (130) includes at least one limiting baffle (131), the limiting baffle (131) is disposed on the base (110) and / or the support structure (120), and the limiting baffle (131) is used to restrict the support structure (120) from rotating relative to the base (110) along a plane perpendicular to the central axis.

10. The wire harness fixing bracket according to claim 9, characterized in that, The limiting structure (130) further includes a limiting protrusion (132) and a limiting groove (133). One of the limiting protrusion (132) and the limiting groove (133) is provided on the support structure (120) and the other is provided on the base (110). The limiting protrusion (132) is inserted into the limiting groove (133) to limit the movement of the support structure (120) relative to the base (110) along a plane perpendicular to the central axis.

11. The wire harness fixing bracket according to claim 10, characterized in that, The cross-section of the limiting protrusion (132) is fan-shaped. Along the radial direction of the fan-shaped protrusion, a limiting groove (134) is provided on at least one side of the limiting protrusion (132). At least one end of the groove wall of the limiting groove (133) is inserted into the corresponding limiting groove (134).

12. The wire harness fixing bracket according to claim 10, characterized in that, The cross-section of the limiting protrusion (132) is fan-shaped, and the limiting baffle (131) is provided at both ends of the limiting protrusion (132) along its own arc length.

13. A high-voltage control box, characterized in that, The device includes a housing body and a wire harness fixing bracket as described in any one of claims 1 to 12, wherein the wire harness fixing bracket (100) is fixedly installed on the housing body via the base (110).

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