Wire harness wall-passing structure and installation method thereof

A wire harness wall-passing structure and an installation method thereof. The wire harness wall-passing structure comprises: a sleeve pipe, a pouring sealant, and at least one sealing plug, wherein the sleeve pipe is alternately filled with the pouring sealant and the sealing plug along the axis direction of the sleeve pipe; and at least one first through hole formed in the sealing plug, and a wire harness which can penetrate through the pouring sealant and the first through hole in the sealing plug. According to the wire harness wall-passing structure, the sleeve pipe is filled with the pouring sealant and the sealing plug, so multi-stage sealing and multi-time sealing of the wire harness are achieved, the sealing performance of the wall-passing structure is greatly improved, and the wire harness wall-passing structure is more suitable for to-be-fixed devices such as a high pressure vessel.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a § 371 of International Application No. PCT/CN2021/124366, filed Oct. 18, 2021, entitled, “WIRE HARNESS WALL-PASSING STRUCTURE AND INSTALLATION METHOD THEREOF”, which claims priority to Chinese Patent Application No. 202011388262.1, filed on Dec. 1, 2020, both of which are incorporated herein by reference in their entirety.

BACKGROUND

The present disclosure relates to the technical field of electrical devices, and in particular to a wire harness wall-passing structure and an installation method thereof.

Most of modern high pressure vessel systems are integrated with different electrical devices, the devices are connected through wire harnesses to transmit electric energy or electric signals, and wall-passing transmission of the wire harnesses between different high-pressure vessels is needed. High-pressure vessels often have certain requirements for air tightness and water tightness.

Generally, there are two types of current wire harness wall-passing structures: in the first type, wires or wire harnesses pass through walls individually and the wire harnesses pass through the wall plate of the vessel with a sleeve pipe; and in the second type, glue is injected into the sleeve pipe through which a wire harness penetrates, so a sealing effect is achieved, but the the sealing performance is insufficient and the sleeve pipe is not suitable for the high pressure vessel still exist.

SUMMARY

Embodiments in accordance with the present invention aim to provide a wire harness wall-passing structure and an installation method thereof, which are used for the wall-passing transmission of a power wire harness between different high-pressure vessels, so the sealing performance is better.

The Embodiments in accordance with the present invention provides a wire harness wall-passing structure, comprising a sleeve pipe, a pouring sealant and at least one sealing plug;

the sleeve pipe is alternately filled with the pouring sealant and the sealing plug along the axis direction of the sleeve pipe; and

at least one first through hole is formed in the sealing plug, and a wire harness can penetrate through the pouring sealant and the first through hole in the sealing plug.

In one embodiment of the present invention the length direction of the first through hole is the axis direction of the sealing plug;

when the number of the first through holes is one, the first through hole penetrates through the middle part of the sealing plug; and

when the number of the first through holes is multiple, the first through holes are formed in the sealing plug at intervals.

In another embodiment of the present invention the two ends of the sleeve pipe are filled with the pouring sealant, and the pouring sealant is insulating glue;

the sealing plug is made of rubber; and the section size of the sealing plug is not smaller than that of the inner cavity of the sleeve, and sealing convex plates protruding in the circumferential direction are formed at the two ends along the axis direction of the sealing plug.

In a further embodiment of the present invention the wire harness wall-passing structure further comprising a reamer, wherein

the reamer comprises a tapered part and a reaming part which are detachably connected; and the small-size end of the tapered part is used for being inserted into the first through hole, the large-size end of the tapered part is connected with the reaming part, an accommodating hole is formed in the reaming part, and the wire harness can penetrate through the accommodating hole.

In another embodiment of the present invention at least one end of the sleeve pipe is provided with a sealing flange, a second through hole corresponding to the first through hole is formed in the sealing flange, and the wire harness can penetrate through the second through hole.

Further, the sealing flange comprises a main body part and an annular sleeving part; andthe sleeving part is connected with one side of the main body part, and the sleeving part sleeves the exterior of the sleeve pipe.

The middle part of the sleeve pipe is sleeved with a fixed flange, and the fixed flange is used for being connected with a to-be-fixed device; andthe sealing flange is connected with the fixed flange through connectors.

Further, the fixed flange is welded to the middle part of the sleeve pipe.

The wire harness wall-passing structure further comprises a sealing gasket positioned between the fixed flange and the to-be-fixed device, whereina limiting convex plate is formed in the middle part of the side, facing the to-be-fixed device, of the fixed flange, and the sealing gasket is arranged in the circumferential direction of the limiting convex plate in a sleeving mode; andfixed holes are formed in the fixed flange and the sealing gasket correspondingly so that the fixed flange and the sealing gasket can be connected with the to-be-fixed device.

An embodiment of the present invention also provides an installation method of a wire harness wall-passing structure. The method comprises the following steps:step one, connecting a sleeve pipe and a fixed flange, and installing the fixed flange on a to-be-fixed device;step two, filling a pouring sealant and a sealing plug into the sleeve pipe alternately, enabling a wire harness to penetrate through the pouring sealant and the sealing plug, and enabling the wire harness to penetrate through a first through hole of the sealing plug through a reamer;step three, repeating the second step until the sleeve pipe is completely filled; andstep four, installing a sealing flange at at least one end of the sleeve pipe.

Compared with the prior art, embodiments of the present invention have the following beneficial effects:

According to the wire harness wall-passing structure provided by embodiments of the present invention, the sleeve pipe is filled with the pouring sealant and the sealing plug, so that multi-stage sealing and multi-time sealing of the wire harness are achieved, the sealing performance of the wall-passing structure is greatly improved, and the wire harness wall-passing structure is more suitable for to-be-fixed devices such as a high pressure vessel.

According to the installation method of a wire harness wall-passing structure provided by embodiments of the present invention, the sleeve pipe is filled with the pouring sealant and the sealing plug, so that multi-stage sealing and multi-time sealing of the wire harness are achieved, the sealing performance of the wall-passing structure is greatly improved, and the installation method is more suitable for to-be-fixed devices such as a high pressure vessel.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The embodiments in the following description are merely a part rather than all of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the protection scope of this invention.

In the description of embodiments of the present invention the indicative direction or position relations of the terms such as “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are direction or position relations illustrated based on the attached figures, just for facilitating the description of embodiments of the present invention and simplifying the description, but not for indicating or hinting the indicated device or element must be in a specific direction and is constructed and operated in the specific direction, the terms cannot be understood as the restriction of embodiments of the present invention. Moreover, the terms such as “first”, “second” and “third” are just used for distinguishing the description but cannot be understood to indicate or hint relative importance.

In the description of embodiments of the present invention, except as otherwise noted, the terms such as “install”, “link” and “connect” should be generally understood, for example, the components can be fixedly connected, and also can be detachably connected or integrally connected; the components can be mechanically connected, and also can be electrically connected; the components can be directly connected and also can be indirectly connected through an intermediate, and two components can be communicated internally. For any person skilled in the art, the specific meanings of the terms in embodiments of the present invention can be understood according to specific conditions.

Referring toFIG.1toFIG.4, in accordance with an embodiment of the present invention, a wire harness wall-passing structure is provided comprising a sleeve pipe101, a pouring sealant102and at least one sealing plug103, wherein the sleeve pipe101is alternately filled with the pouring sealant102and the sealing plug103along the axis direction of the sleeve pipe101; and at least one first through hole104is formed in the sealing plug103, and a wire harness117can penetrate through the pouring sealant102and the first through hole104in the sealing plug103.

Specifically, the wire harness wall-passing structure comprises a sleeve pipe101, a pouring sealant102and a sealing plug103, wherein the sleeve pipe101can penetrate through the wall plate of the to-be-fixed device1114such as a high pressure vessel. The pouring sealant102and the sealing plug103are alternately arranged so as to seal and fill a routing cavity in the sleeve pipe101.

In the specific operation, firstly, a plurality of wire harnesses117penetrate through first through hole104formed in the sealing plug103in a one-to-one correspondence mode, and primary wall-passing structure sealing of first-stage sealing is achieved; the pouring sealant102such as polyurethane is filled at the joint of the wire harnesses117and the sealing plug103, so that secondary wall-passing structure sealing of first-stage sealing is realized; and then the operations of filling the sealing plug103and filling the polyurethane pouring sealant102are repeated, so that the two-stage sealing of the wall-passing structure is realized, and then the multi-stage sealing of the wall-passing structure can be realized.

According to the wire harness wall-passing structure provided by the present disclosure, the sleeve pipe101is filled with the pouring sealant102and the sealing plug103, so that multi-stage sealing and multi-time sealing of the wire harness117are achieved, the sealing performance of the wall-passing structure is greatly improved, and the wire harness wall-passing structure is more suitable for to-be-fixed devices such as a high pressure vessel.

In an embodiment of the present invention, the length direction of the first through hole104is the axis direction of the sealing plug103; when the number of the first through holes104is one, the first through hole104penetrates through the middle part of the sealing plug103; and when the number of the first through holes104is multiple, the first through holes104are formed in the sealing plug103at intervals.

Referring toFIG.2andFIG.3, generally, when the total cross sectional area of a cable is smaller than 0.3 mm2, a plurality of cables can be integrated into a wire harness117, a first through hole104is formed in the sealing plug103, the first through hole104is formed in the middle part of the sealing plug103, namely, the wire harness117is also located at the central position of the sealing plug103, and the sealing plug103seals the periphery of the wire harness117more uniformly.

When the total cross-sectional area of the cable is larger than 0.3 mm2, the cable is divided into a plurality of wire harnesses117, and a plurality of first through holes104arranged at intervals are formed in the sealing plug103, so the wire harnesses117can respectively pass through the first through holes104. Preferably, the first through holes104in the outer layer are equally spaced from the side wall of the sealing plug103, and the sealing plug103seals the wire harness117in the first through holes104in the outer layer more uniformly.

In another embodiment of the present invention, the two ends of the sleeve pipe101are filled with the pouring sealant102, the pouring sealant102has certain viscosity so that the sealing effect is achieved, and meanwhile, the sealing plug103can be adhered and fixed; and the pouring sealant102is insulating glue, except the polyurethane pouring sealant, optionally, the pouring sealant102can be electronic insulating sealants such as an epoxy resin pouring sealant, an LED pouring sealant and the like.

The sealing plug103is made of rubber, and specifically, the sealing plug103can be made of natural rubber or synthetic rubber. The rubber has high elasticity, can achieve a sealing effect, has an insulating effect, can ensure the insulativity of the wall-passing structure, and can be suitable for electrical devices such as a high-pressure vessels filled with non-insulating liquid.

The section size of the sealing plug103is not smaller than that of the inner cavity of the sleeve pipe101, and the sealing plug103can be extruded to completely fill the inner cavity of the sleeve pipe101; and further, the sealing convex plates105protruding in the circumferential direction are formed at the two ends along the axis direction of the sealing plug103, so that liquid can be prevented from entering from one end of the sleeve pipe101and leaking to the other end of the sleeve pipe101through the sealing plug103.

Of course, various kinds and forms of rubber sealing plugs103, such as cylindrical rubber sealing rings or conical rubber sealing rings, can be used in the device.

The wire harness wall-passing structure further comprises a reamer106, wherein the reamer106comprises a tapered part107and a reaming part108which are detachably connected; and the small-size end of the tapered part107is used for being inserted into the first through hole104, the large-size end of the tapered part107is connected with the reaming part108, an accommodating hole is formed in the reaming part108, and the wire harness117can penetrate through the accommodating hole.

Accordingly, when the section size of the first through hole104in the sealing plug103is smaller than that of the wire harness117, the first through hole104can be reamed by the reamer106to facilitate the wire harness117to pass through the first through hole104.

Specifically, through the arrangement of the tapered part107, the operation that the reamer106is inserted into the first through hole104is more easily, the insertion operation continues until the reaming part108is inserted into the first through hole104, then the tapered part107at the front end is removed, the accommodating hole in the reaming part108forms a through hole structure to allow the wire harness117to pass through, and after the wire harness117completely passes through the first through hole104, the reamer108can be removed, so that the wire harness117is left in the first through hole104.

Preferably, the length of the reaming part108is not smaller than that of the first through hole104, so that the tapered part107can be conveniently detached and the first through hole104can be completely reamed.

The wire harness wall-passing structure in another embodiment is improved based on the above embodiment, the technical content disclosed in the above embodiment is not repeatedly described, and the content disclosed in the above embodiment also belongs to the content disclosed in the second embodiment.

In further embodiment, at least one end of the sleeve pipe101is provided with a sealing flange109, a second through hole110corresponding to the first through hole104is formed in the sealing flange109, and the wire harness117can penetrate through the second through hole110.

As shown inFIG.1, optionally, the sealing flange109is only installed at the end, located on the outer side of a high-pressure vessel, of the sleeve pipe101, external water vapor is prevented from entering the high-pressure vessel, and the cost is relatively saved. Corresponding to the sealing plug103, the sealing flange109also comprises a second through hole110or a plurality of second through holes110, and the principle of the sealing flange109is consistent with that of the sealing plug103and is not repeated here.

In an optional scheme of the embodiment, the sealing flange109comprises a main body part111and an annular sleeving part112; and the sleeving part112is connected with one side of the main body part111, and the sleeving part112sleeves the exterior of the sleeve pipe101.

The annular sleeving part112wraps the end part of the sleeve pipe101, and the sleeve pipe101is further isolated from the outside, so that a better sealing effect is realized. Preferably, the main body part111and the sleeving part112are integrally formed, so that the strength and the sealing performance are better.

The middle part of the sleeve pipe101is sleeved with a fixed flange113, and the fixed flange113is used for being connected with a to-be-fixed device114; and the sealing flange109is connected with the fixed flange113through connectors118.

As shown inFIG.1, the end, away from the sealing flange109, of the sleeve pipe101extends into the high-pressure vessel, the fixed flange113is arranged in the middle of the sleeve pipe101in a sleeving mode to be connected with the outer wall of the high-pressure vessel, and therefore the wire harness wall-passing structure is fixed. Specifically, the fixed flange113can be installed on the two sides or the top of the high pressure vessel and is quite convenient to use.

Further, the sealing flange109and the fixed flange can be connected through connectors such as bolts, so that the sealing flange109is fixed to the end part of the sleeve pipe101.

The fixed flange113is welded to the middle part of the sleeve pipe101, so that reliable connection of the fixed flange113and the sleeve pipe101is realized.

The wire harness wall-passing structure further comprises a sealing gasket119positioned between the fixed flange113and the to-be-fixed device114, wherein a limiting convex plate115is formed in the middle part of the side, facing the to-be-fixed device114, of the fixed flange113, and the sealing gasket119is arranged in the circumferential direction of the limiting convex plate in a sleeving mode; and fixed holes116are formed in the fixed flange113and the sealing gasket119correspondingly so that the fixed flange113and the sealing gasket119can be connected with the to-be-fixed device114.

In an embodiment of the present invention, the sleeve pipe101extends into the high pressure vessel at the opening of the high pressure vessel, and the sealing gasket is arranged between the fixed flange113and the high pressure vessel in order to ensure reliable sealing at the opening. On one hand, the limiting convex plate115is used for fixing the sealing gasket, and on the other hand, the side wall of the limiting convex plate115can play a role in blocking, so that the sealing effect is improved.

Further, fixed holes116are formed in the fixed flange113and the sealing gasket correspondingly, and the connectors such as bolts can pass through the fixed holes116so that the fixed flange113and the sealing gasket are fixed to the high-pressure vessel.

Optionally, connecting holes corresponding to the fixed holes can be formed in the sealing flange109, and the connectors such as bolts can penetrate through the connecting holes of the sealing flange109, the fixed flange113and the fixed holes116of the sealing gasket to fix the sealing flange109; or holes are formed in the fixed flange113additionally at other positions so as to correspond to the connecting holes of the sealing flange109, so that the sealing flange109can be fixed.

In another embodiment of the present invention an electrical device comprising the wire harness wall-passing structure of any one of the above embodiments. Therefore, all the beneficial technical effects of the wire harness wall-passing structure of any one of the above embodiments are achieved, and are not repeated here.

In an additional embodiment of the present invention an installation method of a wire harness wall-passing structure, comprising the following steps:step one, connecting a sleeve pipe and a fixed flange, and installing the fixed flange on a to-be-fixed device;step two, filling a pouring sealant and a sealing plug into the sleeve pipe alternately, enabling a wire harness to penetrate through the pouring sealant and the sealing plug, and enabling the wire harness to penetrate through a first through hole of the sealing plug through a reamer;step three, repeating the second step until the sleeve pipe is completely filled; andstep four, installing a sealing flange at at least one end of the sleeve pipe.

Further, the sleeve pipe is filled with the pouring sealant and the sealing plug, so that multi-stage sealing and multi-time sealing of the wire harness are achieved, the sealing performance of the wall-passing structure is greatly improved, and the installation method is more suitable for to-be-fixed devices such as a high-pressure vessel.

Finally, it should be noted that the foregoing embodiments are merely intended for describing the technical solutions of the present disclosure, but not for limiting the present disclosure. Although the present disclosure is described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that they may still make modifications to the technical solutions described in the foregoing embodiments or make equivalent replacements to some or all technical features thereof, without departing from the scope of the technical solutions of the embodiments of the present disclosure. Furthermore, those skilled in the art will appreciate that, although some embodiments herein include certain but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present disclosure and form different embodiments.