CN219007760U - Sealing connection piece and automobile connector - Google Patents
Sealing connection piece and automobile connector Download PDFInfo
- Publication number
- CN219007760U CN219007760U CN202320476985.XU CN202320476985U CN219007760U CN 219007760 U CN219007760 U CN 219007760U CN 202320476985 U CN202320476985 U CN 202320476985U CN 219007760 U CN219007760 U CN 219007760U
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- Prior art keywords
- cable
- sealing
- shell
- insert
- plastic shell
- Prior art date
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- 238000007789 sealing Methods 0.000 title claims abstract description 80
- 239000004033 plastic Substances 0.000 claims abstract description 51
- 229920003023 plastic Polymers 0.000 claims abstract description 51
- 238000001746 injection moulding Methods 0.000 claims abstract description 19
- 239000000565 sealant Substances 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000000741 silica gel Substances 0.000 description 11
- 229910002027 silica gel Inorganic materials 0.000 description 11
- 239000002654 heat shrinkable material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Connector Housings Or Holding Contact Members (AREA)
Abstract
The utility model discloses a sealing connecting piece and an automobile connector, which belong to the technical field of cable injection molding piece sealing, and comprise a shielding ring, a cable, a plastic shell, a sealing piece and a cable insert, wherein the cable shell is covered on the outermost layer of the cable, the shielding ring is sleeved on the outer layer of the cable shell, the cable insert is assembled outside the shielding ring, the cable insert is also partially embedded in a gap between the cable shell and the plastic shell, the sealing piece is covered in the gap between the cable shell and the plastic shell, one end of the sealing piece is connected with one end of the embedded part of the cable insert, the plastic shell is positioned on the outermost layer of the sealing connecting piece, and sealant exuded in the sealing piece is filled in a gap between the cable shell and the cable insert and the plastic shell; the utility model has long sealing time, good effect and low manufacturing cost.
Description
Technical Field
The utility model relates to a sealing connecting piece and an automobile connector, and belongs to the technical field of cable injection molding piece sealing.
Background
The use of plastic-bearing cable injection molding is very widespread today, and there are many parts that require a complete seal between the two. Because the plastic parts and the cable silica gel outer skins are made of different materials and have different thermal expansion coefficients, the injection molding is carried out at high temperature, gaps exist between the plastic parts and the cable silica gel outer skins when the plastic parts and the cable silica gel outer skins are recovered to normal temperature, the sealing performance of the plastic parts and the cable silica gel outer skins is poorer and poorer along with the use time, and under the condition of sealing requirement, the parts produced by the process can not meet the sealing requirement. The cable sheath is made of silica gel, the energy level of the silica gel surface is very low, the affinity with other materials is very poor, for example, an electric switch used on an automobile is poor in use environment, the sealing problem is the most common, after long-time use, a gap is formed between the interface of the cable insert and the plastic body due to different thermal expansion coefficients of the cable silica gel sheath and the plastic body, pressure media such as water and oil can penetrate through the gap to enter the connector to corrode and damage a circuit, in order to solve the sealing problem, two common methods exist at present, one method is that the cable insert embedded between the cable silica gel sheath surface and the plastic is made into a different bending shape, the sealing effect is improved by prolonging the interface between the insert and the plastic, but the sealing problem still exists for a long time due to the fact that the two materials are different in thermal expansion coefficients, and the other method is that the insert is made into two connecting pieces, the sealing effect can be achieved by adding a sealing ring at the connecting position, and the manufacturing cost is high.
Disclosure of Invention
The utility model aims to provide a sealing connecting piece and an automobile connector, which solve the problems that long-time sealing cannot be realized, the cost is high and the like in the prior art.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
in a first aspect, the utility model provides a sealing connection comprising a shielding ring, a cable, a plastic shell, a sealing element and a cable insert, wherein the cable is covered with a cable sheath on the outermost layer, the shielding ring is sleeved on the outer layer of the cable sheath, the cable insert is assembled outside the shielding ring, the cable insert is partially embedded in a gap between the cable sheath and the plastic shell, the sealing element is covered in the gap between the cable sheath and the plastic shell, one end of the sealing element is connected with one end of the embedded part of the cable insert, the plastic shell is positioned on the outermost layer of the sealing connection, and sealant oozed out of the sealing element is filled in a gap between the cable sheath and the cable insert and between the cable sheath and the plastic shell.
With reference to the first aspect, further, the shielding ring is assembled at the end of the cable.
With reference to the first aspect, further, the cable sheath is made of silica gel.
In combination with the first aspect, further, the sealing element is made of a material, and the sealant is a jelly which is exuded by thermal shrinkage of the rubber material when the rubber material is heated in the injection molding process of the plastic shell.
With reference to the first aspect, further, the cable insert is formed by injection molding.
In a second aspect, the present utility model further provides an automotive connector, including the sealing connector according to any one of the first aspect, and further including a connector, where one end of the connector is fixedly connected to a cable, and the other end is used to connect to a component to be connected in an automobile.
Compared with the prior art, the utility model has the following beneficial effects:
according to the sealing connecting piece and the automobile connector, the sealing piece is wrapped in the gap between the cable sheath and the plastic shell, sealant oozing out of the sealing piece during thermal shrinkage is filled in the gap between the cable sheath, the cable insert and the plastic shell, sealing between the cable sheath and the plastic shell is achieved, the sealing time is long, the effect is good, and the manufacturing cost is low;
the utility model adopts rubber material as sealing element, the rubber material and plastic have affinity, and are easy to seal, and the cold expansion of the rubber material can well compensate the gap caused by the difference of thermal expansion coefficients between the cable sheath and the plastic shell body, so that the sealing problem of the cable sheath and the plastic shell body is thoroughly solved.
Drawings
FIG. 1 is a cross-sectional view of a sealing connection provided in an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an automobile connector according to an embodiment of the present utility model after injection molding of a cable insert and encapsulation of rubber material;
fig. 3 is an overall schematic diagram of an automobile connector after injection molding to complete a plastic housing according to an embodiment of the present utility model.
In the figure: 1. a cable sheath; 2. a seal; 3. a plastic housing; 4. a cable insert; 5. a shielding ring.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, and the following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not to be construed as limiting the scope of the present utility model.
In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the utility model; 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", "a second", etc. may explicitly or implicitly include one or more such feature; in the description of the utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements; the specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
Example 1
As shown in fig. 1, the sealing connector provided by the embodiment of the utility model comprises a cable sheath 1, a sealing element 2, a plastic shell 3, a cable insert 4 and a shielding ring 5.
The cable runs through whole sealing connection spare, is equipped with cable crust 1 at the outermost layer of cable, and cable crust 1 is the silica gel material.
The shielding ring 5 is used for shielding static electricity, current overflow and the like, and avoiding external interference and internal current interference with external equipment.
The tail end of the cable sheath 1 is fitted with a shielding ring 5, a cable insert 4 is injection molded at low pressure outside the shielding ring 5, and the cable insert 4 is also partially embedded in the gap between the cable sheath 1 and the plastic housing 3.
The surface of the cable sheath 1 of the embedded part of the cable insert 4 is wrapped with the sealing piece 2 made of rubber, the sealing piece 2 and the plastic shell 3 are molded into a whole during injection molding, the plastic shell 3 is positioned on the outer layers of the sealing piece 2 and the cable insert 4, sealant exuded in the sealing piece 2 is filled in gaps between the cable sheath 1 and the cable insert 4 and between the sealing piece 3 and between the sealing piece 2 and the plastic shell 3 during thermal shrinkage, the rubber material and the plastic have affinity and are easy to seal, the sealant firmly fills the gaps between the molded plastic shell 3 and the cable sheath 1 made of silica gel, and gaps caused by thermal expansion coefficient differences between the cable sheath 1 and the plastic shell 3 body can be well compensated by cold expansion of the rubber material, so that the sealing problem of the two is thoroughly solved.
The relative positions of the cable insert 4, the sealing member 2 and the cable sheath 1 are shown in fig. 2, and the relative positions of the cable sheath 1, the cable insert 4 and the plastic housing 3 are shown in fig. 3.
The manufacturing process of the sealing connecting piece provided by the utility model comprises the following steps: during processing, rubber materials are wrapped on the surface of the cable sheath 1 in advance, then an injection molding process is carried out, and the sealing piece 2 made of the rubber materials and the plastic shell 3 are molded into a whole during injection molding, namely, the sealing piece 2 is wrapped on the surface of the cable sheath 1, then the sealing piece is placed in a designated position in a mold, melted plastics are filled in the mold, the mold is closed, the pressure is maintained for a period of time, cooling molding is carried out, the mold is opened, demolding is carried out, the rubber materials and the plastics have affinity and can be tightly combined together, so that the sealing piece 2 and the plastic shell 3 are tightly connected together after molding. The sealing element 2 and the plastic shell 3 can generate a thermal shrinkage phenomenon after bearing high temperature in the injection molding process, and the sealing element 2 and the plastic shell 3 are tubular bodies wrapped outside the cable, so that the sealing element 2 and the plastic shell 3 have good combination property, the sealing element 2 and the plastic shell 3 synchronously shrink inwards, namely shrink towards the direction of the cable sheath 1, and meanwhile, the sealing element 2 seeps sealant in the injection molding process, thereby achieving the aim of sealing the cable sheath 1 and the plastic shell 3, meeting the requirement of an automobile connector on the tightness, and achieving the sealing aim.
The polyethylene, rubber and the like after irradiation crosslinking have certain strength above the crystallization melting temperature of the polyethylene, rubber and the like, and are rubber-like elastic bodies. The polymer elastic material is deformed by external force, and the action of releasing the external force and reheating and recovering the original state is called as memory effect, and also called as thermal shrinkage effect, and is called as thermal shrinkage for short. The memory property of the heat-shrinkable material can be used for manufacturing heat-shrinkable tubes, films and special-shaped materials, and the heat-shrinkable material is mainly characterized in that the heat-shrinkable material is heat-shrinkable and coated on the outer surface of an object, and can play roles of insulation, moisture resistance, sealing, protection, connection and the like, and the radial shrinkage rate of the heat-shrinkable material can reach 50% -80%.
The temperature reached by the injection molding process meets the temperature condition that the rubber material seeps out of the sealant, so that the rubber material can seep out of the sealant to achieve the sealing effect in the injection molding process; the temperature reached by the injection molding process meets the temperature condition of thermal shrinkage of the rubber material, so that the rubber material can be subjected to thermal shrinkage simultaneously in the injection molding process, and the thermal shrinkage is finished after cooling and molding.
The automobile connector is a bridge between the blocking circuit or the isolating circuit in the circuit, so that current can flow, and the circuit can realize a preset function, thereby realizing the connection between various devices in the automobile. The automotive connector thus implements a connection of the electrical circuit.
The following table 1 shows the tightness test items and parameters satisfied by the sealing connection provided in this embodiment:
TABLE 1 seal test items and data sheets
The following table 2 shows the various requirements of the engine mounting parts:
TABLE 2 Engine mounting part requirement Meter
Example 2
The embodiment of the utility model provides an automobile connector, which comprises the sealing connecting piece in the embodiment 1 and further comprises a connector, wherein one end of the connector is fixedly connected with a cable, and the other end of the connector is used for connecting components to be connected in an automobile.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (6)
1. The utility model provides a sealing connection spare, a serial communication port, including the shielding ring, the cable, the plastic housing, the sealing member, the cable inserts, the cable crust has been wrapped up to the cable outmost, the shielding ring cover is in the skin of cable crust, the cable inserts assembly is in the outside of shielding ring, the cable inserts still partly imbeds in the space between cable crust and the plastic housing, the sealing member parcel is in the space between cable crust and the plastic housing, and the one end of sealing member is connected with the one end of cable inserts embedding part, the plastic housing is located sealing connection spare's outmost, plastic housing and sealing member are connected as an organic wholely through injection moulding, the sealant that oozes in the sealing member is filled in the gap between cable crust, cable inserts and the plastic housing.
2. A sealing connection according to claim 1, wherein the shield ring is fitted at the end of the cable.
3. The sealing connection of claim 1, wherein the cable sheath is made of silicone.
4. A sealing connection according to claim 1, wherein the sealing member is a rubber sealing member.
5. The sealing connection of claim 1, wherein the cable insert is integrally connected to the shield ring by injection molding.
6. An automotive connector comprising the sealing connector of any one of claims 1 to 5, and further comprising a connector head having one end fixedly connected to a cable and the other end for connecting to a member to be connected in an automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320476985.XU CN219007760U (en) | 2023-03-14 | 2023-03-14 | Sealing connection piece and automobile connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320476985.XU CN219007760U (en) | 2023-03-14 | 2023-03-14 | Sealing connection piece and automobile connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219007760U true CN219007760U (en) | 2023-05-12 |
Family
ID=86245567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320476985.XU Active CN219007760U (en) | 2023-03-14 | 2023-03-14 | Sealing connection piece and automobile connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219007760U (en) |
-
2023
- 2023-03-14 CN CN202320476985.XU patent/CN219007760U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |