CN218976317U

CN218976317U - Wire harness sealing structure and sealing device

Info

Publication number: CN218976317U
Application number: CN202223528068.6U
Authority: CN
Inventors: 王亦旭
Original assignee: Zhejiang Lezhi Electronic Technology Co ltd
Current assignee: Zhejiang Lezhi Electronic Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-05
Anticipated expiration: 2032-12-26

Abstract

The utility model belongs to the technical field of wire harness sealing, in particular to a wire harness sealing structure and airtight equipment, wherein the wire harness sealing structure comprises a connector and at least one wire harness, the wire harness comprises a first insulating layer, a second insulating layer and a core wire, the core wire comprises a first section, a second section and a third section which are sequentially connected along the length direction, the first insulating layer is coated outside the first section, and the second insulating layer is coated outside the third section; the second section is arranged in the through hole in a penetrating mode, and the through hole is filled with glue filling packaging materials. This pencil seal structure adopts the sealed mode of encapsulating encapsulation, compares with adopting the sealing washer to seal, and sealed effectual can satisfy the sealed demand of higher requirement.

Description

Wire harness sealing structure and sealing device

Technical Field

The application belongs to the technical field of wire harness sealing, and particularly relates to a wire harness sealing structure and sealing equipment.

Background

In some airtight devices, a connector is arranged on a shell of the device, a wire harness penetrates into a sealing ring, the sealing ring is sleeved into the connector, a nut is finally arranged in the connector, and the sealing ring is pressurized and sealed, so that leakage at the wire harness is prevented, and sealing between the wire harness and the connector is realized; but the sealing effect of the sealing ring is limited, and the higher sealing requirement cannot be met.

Disclosure of Invention

The utility model aims at providing a pencil seal structure and airtight equipment, it is limited to aim at solving the sealed effect of sealing washer, can't satisfy the technical problem of higher sealing demand.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the wire harness sealing structure comprises a connector and at least one wire harness, wherein the wire harness comprises a first insulating layer, a second insulating layer and a core wire, the core wire comprises a first section, a second section and a third section which are sequentially connected along the length direction, the first insulating layer is coated outside the first section, and the second insulating layer is coated outside the third section; the second section is arranged in the through hole in a penetrating mode, and the through hole is filled with glue filling packaging materials.

Optionally, the potting material is silica gel.

Optionally, an annular groove is formed in the inner wall of the through hole, and the annular groove extends along the circumferential direction of the through hole.

Optionally, a glue filling hole penetrating through the connector is formed in the bottom wall of the annular groove.

Optionally, the core wire comprises a plurality of single wires.

Optionally, the wire harness sealing structure further comprises a connecting piece, the connecting piece is located in the through hole, and the second section is welded on the connecting piece.

Optionally, the number of the core wires is plural, and the second sections of the plural core wires are arranged at intervals on the connecting piece.

Optionally, the connector is a circuit board.

Optionally, the connector is a bolt, and the through hole penetrates through the bolt along the axis of the bolt.

The above technical scheme in the wire harness sealing structure provided by the application has at least one of the following technical effects: the second section of the wire harness is penetrated into the through hole, and the through hole is filled with the glue filling packaging material, and the glue filling packaging material fills the gap between the second section and the inner wall of the through hole, so that the glue filling packaging sealing of the wire harness is realized; compared with sealing by a sealing ring, the sealing method has the advantages that the sealing effect is good, and the sealing requirement with higher requirements can be met; in addition, the encapsulating packaging material is coated outside the second section, namely, the encapsulating packaging material is filled in the interval between the first insulating layer and the second insulating layer, so that gas cannot leak from the gap between the insulating layer and the core wire, and the tightness can be further improved.

The application adopts another technical scheme that: a sealing device comprises the wire harness sealing structure.

The sealing equipment of the application adopts the wire harness sealing structure, has good sealing effect, can meet the use requirement of higher sealing requirements, and can greatly expand the application range of the sealing equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of one view angle of a wire harness sealing structure provided in an embodiment of the present application.

Fig. 2 is a schematic structural view of another view of the wire harness sealing structure shown in fig. 1.

Fig. 3 is a schematic structural view of the wire harness sealing structure shown in fig. 1 from yet another perspective.

Fig. 4 is a cross-sectional view taken along line A-A in fig. 3.

Fig. 5 is a partial enlarged view at B in fig. 3.

Fig. 6 is an exploded schematic view of the wire harness sealing structure shown in fig. 1.

Fig. 7 is a partial enlarged view at C in fig. 6.

Wherein, each reference sign in the figure:

100-connector 110-bolt 111-through hole

112-glue-pouring hole 200-wire harness 210-first insulating layer

220-second insulating layer 230-core wire 231-first section

232-second section 233-third section 300-package

310-annular protrusion 320-package 400-connector

410-circuit board 500-seal 2301-single line.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be further noted that, in the embodiments of the present application, the same reference numerals denote the same components or the same parts, and for the same parts in the embodiments of the present application, reference numerals may be given to only one of the parts or the parts in the drawings by way of example, and it should be understood that, for other same parts or parts, the reference numerals are equally applicable.

The terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., in this application, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Referring to fig. 1, the embodiment of the application provides a wire harness sealing structure and a closed device including the wire harness sealing structure, where the closed device is a device that needs to isolate an internal environment and an external environment of the device in a working process; for example, in some pressure-resistant test devices, the air pressure in the pressure-resistant test device is greater than the air pressure of the external environment, and by adopting the wire harness sealing structure of the embodiment of the application, the leakage risk of air from between the connector 100 and the wire harness 200 can be reduced, the tightness of the pressure-resistant test device during operation is improved, and the detection result is improved.

In an embodiment of the present application, as shown in fig. 2, 3 and 4, there is provided a wire harness sealing structure including a connector 100 and at least one wire harness 200, it being understood that the connector 100 is sealed and fixed to a sealing device and plays a role in supporting and fixing the wire harness 200; the wire harness 200 may be a wire led out from the inside of the airtight device for transmitting an electrical signal, so as to realize functions of controlling the airtight device or outputting result information, etc.; or may be a wire for supplying power to the containment device, i.e., a power cord of the containment device. Wherein, for one wire harness sealing structure, one, two, three, four or more than five core wires 230 may be included, which is not limited herein.

In the present embodiment, the wire harness 200 includes a first insulating layer 210, a second insulating layer 220 and a core wire 230, the core wire 230 includes a first section 231, a second section 232 and a third section 233 which are sequentially connected in the length direction, the first insulating layer 210 is coated outside the first section 231, the second insulating layer 220 is coated inside the third section 233, it can be understood that the core wire 230 refers to a conductive wire located at the center of the wire harness 200 and used for transmitting an electrical signal or current; the first insulating layer 210 and the second insulating layer 220 refer to members coated outside the core wire 230 to protect and insulate the core wire 230, wherein the first insulating layer 210 and the second insulating layer 220 on the core wire 230 are disconnected and form a space, and the second section 232 can be exposed.

In the present embodiment, the connector 100 is provided with a through hole 111, and the second section 232 is disposed through the through hole 111. It is understood that the through-hole 111 penetrates the connector 100, and the second section 232 penetrates the through-hole 111, so that the wire harness 200 can be led from the inside of the airtight apparatus to the outside of the airtight apparatus; it should be noted that, the first section 231 may be located inside the closed apparatus, and the third section 233 may be located outside the closed apparatus; the first section 231 may be located inside the closed apparatus, and the third section 233 may be located outside the closed apparatus, which may be specifically selected according to actual needs, and is not limited herein.

In this embodiment, the through hole 111 is filled with a potting material, and it is understood that after the second section 232 is disposed in the through hole 111 in a penetrating manner, the liquid potting material is injected into the through hole 111 to be cured, and the potting material may refer to the potting material being cured to obtain the package 300; of course, in other embodiments, the potting material may be in a liquid state, which is not limited herein. The glue filling packaging material is a material capable of achieving packaging and having insulating performance, and the insulating performance can reduce leakage risks.

According to the wire harness sealing structure, the second section 232 of the wire harness 200 is arranged in the through hole 111 in a penetrating mode, the through hole 111 is filled with the glue filling packaging material, and the glue filling packaging material fills the gap between the second section 232 and the inner wall of the through hole 111, so that glue filling packaging sealing of the wire harness 200 is achieved; compared with sealing by adopting a sealing ring 500, the sealing mode of glue filling encapsulation has good sealing effect and can meet the sealing requirement with higher requirements; in addition, the second section 232 is coated with the potting material, that is, the potting material is filled in the space between the first insulating layer 210 and the second insulating layer 220, so that the gas cannot leak from the gap between the insulating layer and the core wire 230, and the tightness can be further improved.

In another embodiment, as shown in connection with fig. 4 and 5, the core wire 230 includes a plurality of single wires 2301, and the filled insulating material can also flow into the gaps between the single wires 2301, so as to seal the gaps between the single wires 2301, reduce the risk of leakage of gas from the gaps between the single wires 2301 in the core wire 230, and further improve the sealing performance. The single wire 2301 is a strand of wire in the core wire 230, and the single wire 2301 may be a copper wire or an aluminum wire. The core wire 230 may include two, three, four or more than five single wires 2301, which is not limited herein.

In another embodiment of the present application, the potting material of the wire harness sealing structure is provided as a silicone.

According to the wire harness sealing structure, the glue filling and packaging material is silica gel, the silica gel is easy to fill, and the sealing effect after packaging is good, so that the sealing performance of the wire harness 200 is improved, and the sealing cost is reduced.

In another embodiment of the present application, as shown in fig. 4 and 6, an annular groove is provided in an inner wall of the through hole 111 of the wire harness sealing structure, the annular groove extending in a circumferential direction of the through hole 111.

According to the wire harness sealing structure, the glue filling packaging material is filled in the annular groove when being injected into the through hole 111, the packaging body 300 is formed after the glue filling packaging material is solidified, the annular protrusion 310 is formed on the peripheral wall of the packaging body 300, the annular protrusion 310 is inserted into the annular groove, the annular protrusion 310 can play an axial limiting role on the packaging body 300 in the through hole 111, the packaging body 300 is difficult to separate from the through hole 111, and therefore the use requirement of higher internal and external pressure difference is met.

In another embodiment of the present application, as shown in fig. 4 and 6, the groove bottom wall of the annular groove of the wire harness sealing structure is provided with a glue filling hole 112 penetrating through the connector 100.

According to the wire harness sealing structure, the glue filling packaging material flows into the annular groove from the glue filling hole 112 and gradually fills the whole through hole 111 along the radial direction of the annular groove to form the packaging body 300, so that the glue filling packaging material can easily fill the annular groove, filling dead angles in the annular groove are reduced, the glue filling quality is improved, and the sealing performance of the wire harness 200 is improved; in addition, the encapsulating portion 320 is formed after the encapsulating material in the encapsulating hole 112 is cured, and the encapsulating portion 320 can also play an axial limiting role on the encapsulating body 300 in the through hole 111, so that the encapsulating body 300 is more difficult to separate from the through hole 111, and further, the use requirement of higher internal and external pressure difference is met.

In another embodiment of the present application, as shown in connection with fig. 5, the core wire 230 of the wire harness sealing structure is provided to include a plurality of single wires 2301.

According to the wire harness sealing structure, the core wire 230 comprises a plurality of single wires 2301, namely, the core wire 230 is of a multi-core wire structure, so that the core wire 230 is good in structural strength, can be bent for many times and is not broken, and the wire harness 200 is better in use reliability and long in service life.

In another embodiment of the present application, a plurality of single wires 2301 of the wire harness sealing structure are provided to be twisted, and it is understood that the core wire 230 is formed by circumferentially spirally winding the plurality of single wires 2301 together in a certain rule and direction.

According to the wire harness sealing structure, the plurality of single wires 2301 are stranded together, so that the structural strength of the core wire 230 can be further improved, the requirement of repeated bending can be met, the use reliability of the wire harness 200 is better, and the service life is long.

In another embodiment of the present application, as shown in connection with fig. 6 and 7, the wire harness sealing structure of the wire harness sealing structure further includes a connection member 400, the connection member 400 is located in the through hole 111, and the second section 232 is welded to the connection member 400.

According to the wire harness sealing structure, the second section 232 is welded on the connecting piece 400 by using the welding material, and in the welding process, the welding material can fill up gaps between the single wires 2301 in the second section 232, so that leakage of gas from the gaps between the single wires 2301 is prevented, and the sealing performance is further improved.

In another embodiment of the present application, as shown in fig. 6 and 7, the number of the core wires 230 of the wire harness sealing structure is provided in plurality, and the second sections 232 of the plurality of core wires 230 are arranged at intervals in the connection member 400.

In the wire harness sealing structure of the embodiment of the application, the second sections 232 of the plurality of core wires 230 are arranged on the connecting piece 400 at intervals, the second sections 232 of the core wires 230 are mutually separated, and the second sections 232 are prevented from being mutually contacted and electrically conducted.

In another embodiment of the present application, as shown in connection with fig. 6 and 7, the connector 400 of the wire harness sealing structure is provided as a circuit board 410.

In the wire harness sealing structure of the embodiment of the application, the connecting piece 400 is the circuit board 410, the circuit board 410 is easy to obtain, and the welding between the circuit board 410 and the second section 232 is simple, so that the processing and the manufacturing are convenient, and the cost is low; in addition, in specific application, the circuit in the circuit board 410 can be directly used to realize circuit connection between the plurality of core wires 230, so that other connection circuits are not needed, which is beneficial to reducing components and manufacturing cost.

In another embodiment of the present application, as shown in connection with fig. 4 and 6, the joint 100 of the wire harness sealing structure is provided as a bolt 110, and the through hole 111 penetrates the bolt 110 along the axis of the bolt 110.

In the wire harness sealing structure of the embodiment of the application, the connector 100 adopts the structural form of the bolt 110, the structure is simple, the processing and the manufacturing are simple, and in addition, the installation and the operation of the bolt 110 and the shell of the sealing equipment are simple and convenient.

In another embodiment, the screw rod of the bolt 110 is sleeved with the sealing ring 500, and after the screw rod of the bolt 110 is spirally installed in the threaded hole of the shell of the sealing device, the sealing ring 500 is clamped between the screw head of the bolt 110 and the shell of the sealing device, so as to realize sealing between the bolt 110 and the shell.

In another embodiment of the present application, there is provided a sealing apparatus including the wire harness sealing structure described above.

The sealing equipment of this application embodiment has adopted foretell pencil seal structure, and sealing equipment's sealed effectual can satisfy the user demand of higher sealing requirement, can expand the application range of this sealing equipment greatly.

The sealing device in this embodiment of the present application adopts all the technical solutions of all the embodiments, so that all the beneficial effects brought by the technical solutions of the embodiments are also provided, and are not described in detail herein.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. A wire harness sealing structure, characterized in that: the wire harness comprises a connector and at least one wire harness, wherein the wire harness comprises a first insulating layer, a second insulating layer and a core wire, the core wire comprises a first section, a second section and a third section which are sequentially connected along the length direction, the first insulating layer is coated outside the first section, and the second insulating layer is coated outside the third section;

the second section is arranged in the through hole in a penetrating mode, and the through hole is filled with glue filling packaging materials.

2. The wire harness sealing structure according to claim 1, wherein: the encapsulating material is silica gel.

3. The wire harness sealing structure according to claim 2, wherein: an annular groove is formed in the inner wall of the through hole, and the annular groove extends along the circumferential direction of the through hole.

4. The wire harness sealing structure according to claim 3, wherein: and a glue filling hole penetrating through the connector is formed in the bottom wall of the annular groove.

5. The wire harness sealing structure according to any one of claims 1 to 4, characterized in that: the core wire includes a plurality of single wires.

6. The wire harness sealing structure according to claim 4, wherein: the wire harness sealing structure further comprises a connecting piece, wherein the connecting piece is located in the through hole, and the second section is welded on the connecting piece.

7. The wire harness sealing structure according to claim 6, wherein: the number of the core wires is multiple, and the second sections of the core wires are arranged on the connecting piece at intervals.

8. The wire harness sealing structure according to claim 6, wherein: the connecting piece is a circuit board.

9. The wire harness sealing structure according to any one of claims 1 to 4, characterized in that: the connector is a bolt, and the through hole penetrates through the bolt along the axis of the bolt.

10. A closed apparatus, characterized in that: comprising the wire harness sealing structure according to any one of claims 1 to 8.