Wire harness sealing structure

Abstract

The utility model discloses a wire harness sealing structure, which belongs to the technical field of controller wire harnesses, and comprises a controller, a wire harness, a connecting and fixing plate and a sealing sleeve, the connecting and fixing plate is fixedly connected to a wire harness leading-out end of the controller through a bolt, the connecting and fixing plate is provided with a sealing hole coaxially arranged with a leading-out hole, and the aperture of the sealing hole is larger than that of the leading-out hole. The sealing sleeve is coaxially arranged in the sealing hole and the lead-out hole, the inner circumferential surface of the sealing sleeve is an inner conical curved surface, the inner diameter of the inner conical curved surface is gradually increased from one end far away from the lead-out hole to one end stretching into the lead-out hole, the end stretching into the lead-out hole of the inner conical curved surface is matched with the outer diameter of the wire harness, and the end far away from the lead-out hole of the inner conical curved surface is connected with the outer diameter of the wire harness in an abutting mode; and the outer peripheral surface of the sealing sleeve is matched with the inner peripheral surfaces of the sealing hole and the lead-out hole. According to the utility model, the problem of poor moisture-proof and dust-proof effects caused by a gap generated between the wiring harness and the controller in the prior art can be solved, and the problem of possible disconnection between the wiring harness and the controller can also be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of controller wire harness, specifically relates to a wire harness sealing structure. BACKGROUND

[0002] The wire harness is the bridge connecting the controller and each component, and the controller wire harness is the component that is tied in the wire harness box and forms the connecting circuit. The existing wire harness and controller generally use rubber sheath to be clamped in the wire harness perforation, the wire harness passes through the middle of the rubber sheath, and the gap is easy to generate after use, the moisture-proof and dustproof effect is poor, and the wire harness and the controller can be disconnected, which affects the normal use of the controller. SUMMARY

[0003] In view of the above technical deficiencies, the utility model aims at providing a wire harness sealing structure, which can solve the problem of gap between the existing wire harness and controller, resulting in poor moisture-proof and dustproof effect, and also solve the problem of possible disconnection between the wire harness and the controller.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a wire harness sealing structure, which comprises a controller and a wire harness, and the wire harness lead-out end of the controller is provided with a lead-out hole; further comprising a fixing plate and a sealing sleeve, the fixing plate is fixedly connected to the wire harness lead-out end of the controller through bolts, the fixing plate is provided with a sealing hole coaxially arranged with the lead-out hole, the hole diameter of the sealing hole is larger than that of the lead-out hole, the sealing sleeve is coaxially arranged in the sealing hole and the lead-out hole, the inner circumferential surface of the sealing sleeve is an inner tapered surface, the inner diameter of the inner tapered surface gradually increases from one end away from the lead-out hole to the other end extending into the lead-out hole, the one end of the inner tapered surface extending into the lead-out hole is matched with the outer diameter of the wire harness, and the other end of the inner tapered surface away from the lead-out hole is in abutting connection with the outer diameter of the wire harness.

[0005] Preferably, the outer circumferential surface of the sealing sleeve is arranged as a stepped structure, the stepped structure comprises a first step, which is matched and arranged in the lead-out hole; a second step, which is matched and arranged in the sealing hole; and a third step, which is arranged on the side surface of the fixing plate away from the controller, and the outer diameter of the third step is larger than that of the second step.

[0006] Preferably, the outer circumferential surface of the second step is arranged as an outer tapered surface, the outer diameter of the outer tapered surface gradually decreases from one end close to the first step to the other end away from the first step; the sealing hole is a horn-shaped structure, and the hole diameter of the sealing hole gradually decreases from one end close to the controller to the other end close to the controller, and the outer tapered surface is matched with the inner circumferential surface of the sealing hole.

[0007] Preferably, the wire harness sealing structure further comprises a fastening cover, which is coaxially arranged with the sealing hole, and a cover opening of the fastening cover is fixedly connected with the fastening plate, and a bottom wall of the fastening cover is provided with a sealing hole coaxially arranged, and a sealing ring pad coaxially arranged is arranged in the sealing hole, and an inner diameter of the sealing ring pad is smaller than an outer diameter of the wire harness.

[0008] Preferably, a ring connecting groove is arranged on a side of the fastening plate away from the controller, and a ring connecting plate is protruded from the side of the fastening plate away from the controller, the ring connecting groove and the ring connecting plate are coaxially arranged with the sealing hole, and an inner diameter of the ring connecting groove is equal to an outer diameter of the ring connecting plate; an inner circular groove is arranged at the cover opening of the inner cavity of the fastening cover, and the inner circular groove is threadedly connected with the ring connecting groove and the ring connecting plate.

[0009] Preferably, a first inner thread is arranged on an outer peripheral surface of the ring connecting groove, and a first outer thread is arranged on an outer peripheral surface of the ring connecting plate and extends to an inner peripheral surface of the ring connecting groove; a second inner thread is arranged on a groove peripheral surface of the inner circular groove, the second inner thread is connected with the first outer thread, a second outer thread is arranged on an outer peripheral surface of the cover opening of the fastening cover, and the second outer thread is connected with the first inner thread.

[0010] Preferably, the wire harness sealing structure further comprises an anti-skid connecting sleeve, which is coaxially arranged with the fastening cover, and two ends of an outer peripheral surface of the anti-skid connecting sleeve abut against the inner cavity of the fastening cover; an abutting circular groove coaxially arranged is arranged on an end surface of the anti-skid connecting sleeve close to the fastening plate, and the sealing sleeve is adaptively connected with the abutting circular groove; a ring groove in a cylindrical structure is arranged on an end surface of the anti-skid connecting sleeve away from the fastening plate, and an abutting ring plate is abutted in the ring groove, the abutting ring plate is coaxially arranged with the sealing hole and is arranged on the inner bottom wall of the fastening cover, and an inner diameter of the abutting ring plate is greater than a hole diameter of the sealing hole.

[0011] Preferably, the anti-skid connecting sleeve comprises an anti-skid inner sleeve, two ends of an outer peripheral surface of the anti-skid inner sleeve abut against the inner cavity of the fastening cover, the ring groove is arranged on an end surface away from the fastening plate, and the abutting circular groove is arranged on an end surface close to the fastening plate; an anti-skid outer sleeve is sleeved on the two ends of the outer peripheral surface of the anti-skid inner sleeve and has a gap with the fastening cover.

[0012] Preferably, an inner peripheral surface of the abutting ring plate is arranged as a tapered curved surface, and the inner diameter of the inner peripheral surface of the abutting ring plate gradually decreases from one end close to the fastening plate to one end away from the fastening plate.

[0013] The wire harness sealing structure has the advantages that the sealing hole with a larger inner diameter than the lead-out hole and the sealing sleeve are arranged, the compactness between the wire harness and the controller is realized, the problem that the wire harness and the controller of the prior art can produce a gap and result in poor moisture-proof and dust-proof effects is solved, the connecting stability between the wire harness and the controller is improved by arranging the connecting cover cylinder, the tightly connected ring pad and the anti-skid connecting sleeve, the disconnection between the wire harness and the controller is effectively avoided, and the moisture-proof and dust-proof effects are also improved, the wire harness sealing structure is simple in structure, convenient to operate and long in service life. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0015] Figure 1 It is a structure diagram of the wire harness sealing structure of the present application.

[0016] Figure 2 It is a sectional view of the wire harness sealing structure of the present application.

[0017] Figure 3 It is a structure diagram of the connecting plate of the present application.

[0018] Figure 4 It is a structure diagram of the sealing sleeve of the present application.

[0019] Figure 5 It is Figure 2 It is an enlarged view of A in the middle.

[0020] Figure 6 It is a structure diagram of the anti-skid connecting sleeve of the present application.

[0021] Figure 7 It is a structure diagram of the connecting cover cylinder of the present application.

[0022] Figure 8 It is Figure 2 It is an enlarged view of B in the middle.

[0023] The reference signs are as follows: 1, controller, 2, connecting plate, 21, sealing hole, 22, ring connecting groove, 23, ring connecting plate, 3, sealing sleeve, 31, inner conical curved surface, 32, outer conical curved surface, 4, anti-skid connecting sleeve, 41, anti-skid inner sleeve, 42, anti-skid outer sleeve, 43, ring groove, 5, connecting cover cylinder, 51, abutting ring plate, 52, inner circular groove, 6, wire harness. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] As shown in the figure, the utility model provides a wiring harness sealing structure. Figures 1 to 8 As shown in the figure, the utility model provides a wiring harness sealing structure.

[0026] Embodiment one:

[0027] The embodiment one provides a wiring harness sealing structure, including controller 1 and fixed plate 2, the wiring harness lead-out end of controller 1 is provided with lead-out hole, and wiring harness 6 extends from lead-out hole to controller 1, fixed plate 2 is fixedly installed on the wiring harness 6 lead-out end of controller 1 by bolt, sealing hole 21 arranged coaxially with lead-out hole is set up on fixed plate 2, and sealing sleeve 3 arranged coaxially with sealing hole 21 is set up in lead-out hole and sealing hole 21, the inner circumferential surface of sealing sleeve 3 is inner tapered surface 31, the inner diameter from the end of inner tapered surface 31 extending to sealing hole 21 to the end of inner tapered surface 31 extending into lead-out hole gradually increases, and the end of inner tapered surface 31 extending into lead-out hole is equal to or slightly smaller than the outer diameter of wiring harness 6, the outer circumferential surface of sealing sleeve 3 is set up as stepped structure, the stepped structure includes first step, second step and third step arranged coaxially with sealing hole 21, the outer diameter of first step is equal to or slightly larger than the inner diameter of lead-out hole, the outer diameter of second step is equal to or slightly larger than the inner diameter of sealing hole 21, and the outer diameter of third step is larger than the inner diameter of sealing hole 21, the third step of sealing sleeve 3 abuts on the side of fixed plate 2 away from controller 1, the first step abuts in sealing hole 21 and the second step abuts in lead-out hole, and wiring harness 6 is arranged in sealing sleeve 3, so that inner tapered surface 31 is deformed to circumferential surface by extrusion of wiring harness, and the reaction force generated by sealing sleeve 3 expands between sealing hole 21 and lead-out hole and wiring harness, so that wiring harness 6 is tightly connected with sealing sleeve 3, the compactness between wiring harness and sealing sleeve 3, sealing hole 21 and lead-out hole of sealing sleeve 3 is greatly improved, and the problem that the gap between wiring harness and controller in prior art causes poor moisture-proof and dust-proof effect can be solved.

[0028] In the embodiment, the sealing hole 21 is a horn-shaped structure, the inner diameter of the sealing hole 21 gradually decreases from the end of the sealing hole 21 close to the controller 1 to the end of the sealing hole 21 away from the controller 1; the outer peripheral surface of the second step is provided as an outer conical surface 32 matched with the conical structure of the sealing hole 21, so that the interface between the sealing sleeve 3 and the sealing hole 21 towards the inside of the controller 1 has a certain slope, improving the dust and water resistance between the sealing sleeve 3 and the sealing hole 21, effectively reducing the entry of dust and water, and further improving the moisture and dust prevention effect of the wire harness sealing structure.

[0029] Embodiment two:

[0030] Based on embodiment one, the wire harness sealing structure of embodiment two further comprises a connecting cover 5 for fixing the wire harness 6 and arranged coaxially with the sealing hole 21, the bottom wall of the connecting cover 5 is provided with a tight hole for the wire harness to extend out, and a tight ring pad is embedded in the tight hole, the inner diameter of the tight ring pad is smaller than the outer diameter of the wire harness 6, the cover opening of the connecting cover 5 is fixedly connected with the connecting plate 2, and the tight ring pad compacts the wire harness 6 to increase the friction strength, so that the connecting cover 5 realizes the fixation of the wire harness and can prevent the wire harness from being disconnected with the connector; the tight hole, the tight ring pad and the sealing hole 21 are coaxially arranged.

[0031] In the embodiment, the side of the connecting plate 2 away from the controller 1 is provided with a ring connection groove 22 coaxially arranged with the sealing hole 21, the groove opening of the ring connection groove 22 is protruded with a ring connection plate 23, the outer peripheral surface of the ring connection plate 23 has a diameter equal to the inner peripheral surface of the ring connection groove 22, the ring connection groove 22 and the ring connection plate 23 are threadedly connected with the cover opening of the connecting cover 5, the ring connection plate 23 extends into the inner circular groove 52, the cover opening of the connecting cover 5 is inserted into the ring connection groove 22, and the inner circular groove 52 is arranged on the inner wall of the cover opening of the connecting cover 5.

[0032] In the embodiment, the outer peripheral surface of the ring connection groove 22 is provided with a first inner thread, the outer peripheral surface of the ring connection plate 23 is provided with a first outer thread, and the first outer thread extends to the inner peripheral surface of the ring connection groove 22, the first inner thread is connected with the second outer thread, the first outer thread is connected with the second inner thread, the second outer thread is arranged on the groove peripheral surface of the inner circular groove 52, and the second outer thread is arranged on the outer peripheral surface of the cover opening of the connecting cover 5.

[0033] Embodiment three:

[0034] Based on example two, the wiring harness sealing structure of example two further comprises an anti-skid connecting sleeve 4 coaxially arranged with the sealing hole 21, arranged between the sealing gasket and the sealing sleeve 3, the anti-skid connecting sleeve 4 is integrally connected with the sealing gasket, the inner diameter of the anti-skid connecting sleeve 4 is equal to the inner diameter of the sealing gasket, the end of the anti-skid connecting sleeve 4 close to the fixing plate 2 is provided with an abutting circular groove coaxially arranged with the sealing hole 21, the third step is abuttingly arranged in the abutting circular groove, the outer peripheral surface of the end of the anti-skid connecting sleeve 4 away from the fixing plate 2 is abuttingly arranged with the inner cavity of the continuous cover 5, the outer peripheral surface of the end of the anti-skid connecting sleeve 4 close to the fixing plate 2 is abuttingly arranged with the ring connecting plate 23 and the inner cavity of the continuous cover 5, the end surface of the anti-skid connecting sleeve 4 away from the fixing plate 2 is provided with a circular groove 43 in a cylindrical structure, the circular groove 43 is abuttingly connected with the abutting ring plate 51, the abutting ring plate 51 is arranged on the inner bottom wall of the continuous cover 5, the abutting ring plate 51 is coaxially arranged with the sealing hole, and the inner diameter of the abutting ring plate 51 is greater than the hole diameter of the sealing hole, so that the continuous cover 5 is fixed with the wiring harness through the anti-skid connecting sleeve 4 and the sealing gasket, the connection stability between the wiring harness and the controller is improved by increasing the friction, the disconnection between the wiring harness and the controller is effectively avoided, the sealing performance of the wiring harness and the controller is improved, and the dustproof and moistureproof effect is increased.

[0035] In the embodiment, the outer peripheral surface of the abutting ring plate 51 is provided as a cylindrical curved surface, the inner peripheral surface of the abutting ring plate 51 is provided as a tapered curved surface, the inner diameter of the abutting ring plate 51 gradually decreases from the end of the inner peripheral surface of the abutting ring plate 51 close to the fixing plate 2 to the end of the inner peripheral surface of the abutting ring plate 51 away from the fixing plate 2, the cross section of the circular groove 43 is in a rectangular structure, the inner diameter of the circular groove 43 is adaptively arranged with the inner diameter of the end of the inner peripheral surface of the abutting ring plate 51 close to the fixing plate 2, the abutting ring plate 51 is inserted into the circular groove 43 to compress the anti-skid connecting sleeve 4 in the direction of the wiring harness, which plays a role in increasing the friction, further improves the fastening effect of the anti-skid connecting sleeve 4 on the wiring harness, and effectively solves the problem that the wiring harness and the controller may be disconnected.

[0036] In the embodiment, in order to make the anti-skid connecting sleeve 4 have both flexibility of increasing friction on the wiring harness and rigidity of avoiding axial deformation of the anti-skid connecting sleeve 4 when the continuous cover 5 is connected with the fixing plate 2, the anti-skid connecting sleeve 4 is provided with an anti-skid inner sleeve 41 and an anti-skid outer sleeve 42, the end of the anti-skid inner sleeve 41 close to the fixing plate 2 is abuttingly arranged with the ring connecting plate 23 and the inner cavity of the continuous cover 5, the end of the anti-skid inner sleeve 41 away from the fixing plate 2 is abuttingly arranged with the inner cavity of the continuous cover 5, the anti-skid outer sleeve 42 is sleeved on the anti-skid inner sleeve 41 and embedded between the two ends of the anti-skid inner sleeve 41, and there is a gap between the anti-skid outer sleeve 42 and the continuous cover 5, the rigidity of the anti-skid outer sleeve 42 is greater than that of the anti-skid inner sleeve 41, the anti-skid outer sleeve 42 has good pushing effect on the circular groove 43, so that the abutting ring plate 51 is abuttingly connected with the circular groove 43, and the anti-skid outer sleeve 42 can keep the anti-skid inner sleeve 41 from being deformed in the axial direction and keep the friction between the anti-skid inner sleeve 41 and the wiring harness, the circular groove 43 is arranged at the end of the anti-skid inner sleeve 41 away from the fixing plate 2, and the abutting circular groove is arranged at the end of the anti-skid inner sleeve 41 close to the fixing plate 2.

[0037] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A wiring harness seal structure comprising a controller (1) and a wiring harness (6), the wiring harness exit end of the controller (1) being provided with an exit hole, characterized in that, Also include: The fixed plate (2) is fixedly connected to the wire harness exit end of the controller (1) by bolts, the fixed plate (2) is provided with a sealing hole (21) coaxially arranged with the exit hole, and the hole diameter of the sealing hole (21) is larger than that of the exit hole; The sealing sleeve (3) is coaxially arranged in the sealing hole (21) and the exit hole, the inner circumferential surface of the sealing sleeve (3) is an inner tapered surface (31), the inner diameter of the inner tapered surface (31) gradually increases from one end away from the exit hole to one end extending into the exit hole, the one end of the inner tapered surface (31) extending into the exit hole is matched with the outer diameter of the wire harness (6), the one end of the inner tapered surface (31) away from the exit hole is abuttingly connected with the outer diameter of the wire harness (6), and the outer circumferential surface of the sealing sleeve (3) is matched with the inner circumferential surface of the sealing hole (21) and the exit hole.

2. A wiring harness seal structure as in claim 1, wherein The outer circumferential surface of the sealing sleeve (3) is provided as a stepped structure, and the stepped structure comprises: The first step is matched and arranged in the exit hole; The second step is matched and arranged in the sealing hole (21); The third step is arranged on the side surface of the fixed plate (2) away from the controller (1), and the outer diameter of the third step is larger than that of the second step.

3. A wiring harness seal structure as in claim 2, wherein The outer circumferential surface of the second step is provided as an outer tapered surface (32), and the outer diameter of the outer tapered surface (32) gradually decreases from one end close to the first step to one end away from the first step; The sealing hole (21) is a horn-shaped structure, and the hole diameter of the sealing hole (21) gradually decreases from one end close to the controller (1) to one end close to the controller (1), and the outer tapered surface (32) is matched with the inner circumferential surface of the sealing hole (21).

4. A wiring harness seal structure as in claim 1, wherein Also include a fixed cover cylinder (5), the fixed cover cylinder (5) is coaxially arranged with the sealing hole (21), the cover opening of the fixed cover cylinder (5) is fixedly connected with the fixed plate (2), and the bottom wall of the fixed cover cylinder (5) is provided with a tightly connected hole coaxially arranged, and a tightly connected ring pad coaxially arranged is arranged in the tightly connected hole.

5. A wiring harness seal structure as in claim 4, wherein The side surface of the fixed plate (2) away from the controller (1) is provided with a ring connecting groove (22), and the side surface of the fixed plate (2) away from the controller (1) is provided with a ring connecting plate (23), the ring connecting groove (22) and the ring connecting plate (23) are coaxially arranged with the sealing hole (21), and the inner diameter of the ring connecting groove (22) is equal to the outer diameter of the ring connecting plate (23); The inner cavity of the fixed cover cylinder (5) is provided with an inner circular groove (52) at the cover opening of the fixed cover cylinder (5), and the inner circular groove (52) is threadedly connected with the ring connecting groove (22) and the ring connecting plate (23).

6. A wiring harness seal structure as in claim 5, wherein The outer circumferential surface of the ring connecting groove (22) is provided with a first inner thread, and the outer circumferential surface of the ring connecting plate (23) is provided with a first outer thread and extends to the inner circumferential surface of the ring connecting groove (22); The groove circumferential surface of the inner circular groove (52) is provided with a second inner thread, the second inner thread is connected with the first outer thread, the outer circumferential surface of the cover opening of the fixed cover cylinder (5) is provided with a second outer thread, and the second outer thread is connected with the first inner thread.

7. A wiring harness seal structure as in claim 4, wherein Also include an anti-skid connecting sleeve (4), the anti-skid connecting sleeve (4) is coaxially arranged with the fixed cover cylinder (5), and the two ends of the outer circumferential surface of the anti-skid connecting sleeve (4) abut against the inner cavity of the fixed cover cylinder (5); The anti-skid connecting sleeve (4) is provided with a coaxial abutting circular groove near the end face of the fixing plate (2), and the sealing sleeve (3) is adaptively connected with the abutting circular groove; The anti-skid connecting sleeve (4) is provided with a circular cylindrical ring groove (43) away from the end face of the fixing plate (2), the ring groove (43) is abutted with an abutting ring plate (51), the abutting ring plate (51) is coaxially arranged with the tightly connected hole and is arranged on the inner bottom wall of the continuous fixing cover cylinder (5), and the inner diameter of the abutting ring plate (51) is greater than the hole diameter of the tightly connected hole.

8. A wiring harness seal structure as in claim 7, wherein The anti-skid connecting sleeve (4) comprises: An anti-skid inner sleeve (41) is abutted with the inner cavity of the continuous fixing cover cylinder (5) at both ends of the outer periphery, the ring groove (43) is arranged away from the end face of the fixing plate (2), and the abutting circular groove is arranged near the end face of the fixing plate (2); An anti-skid outer sleeve (42) is sleeved at both ends of the outer periphery of the anti-skid inner sleeve (41) and has a gap with the continuous fixing cover cylinder (5).

9. A wiring harness seal structure as in claim 7, wherein The inner periphery of the abutting ring plate (51) is provided with a conic surface, and the inner diameter of the inner periphery of the abutting ring plate (51) gradually decreases from one end near the fixing plate (2) to one end away from the fixing plate (2).

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