CN212804205U - Binding post seal structure - Google Patents
Binding post seal structure Download PDFInfo
- Publication number
- CN212804205U CN212804205U CN202021623458.XU CN202021623458U CN212804205U CN 212804205 U CN212804205 U CN 212804205U CN 202021623458 U CN202021623458 U CN 202021623458U CN 212804205 U CN212804205 U CN 212804205U
- Authority
- CN
- China
- Prior art keywords
- binding post
- seal structure
- coil
- plastic casing
- sealing member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000000565 sealant Substances 0.000 claims description 3
- YBGRCYCEEDOTDH-JYNQXTMKSA-N evap protocol Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1.O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@H](O)[C@H](C)O1.COC1=C(O)C(OC)=CC([C@@H]2C3=CC=4OCOC=4C=C3C(O[C@H]3[C@@H]([C@@H](O)[C@@H]4O[C@H](C)OC[C@H]4O3)O)[C@@H]3[C@@H]2C(OC3)=O)=C1.C([C@H](C[C@]1(C(=O)OC)C=2C(=C3C([C@]45[C@H]([C@@]([C@H](OC(C)=O)[C@]6(CC)C=CCN([C@H]56)CC4)(O)C(=O)OC)N3C)=CC=2)OC)C[C@@](C2)(O)CC)N2CCC2=C1NC1=CC=CC=C21 YBGRCYCEEDOTDH-JYNQXTMKSA-N 0.000 abstract description 8
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a binding post seal structure, including the plastic casing, be equipped with binding post, coil and sealing member in the plastic casing, binding post's one end and coil welded connection, install the sealing member between the binding post other end and the plastic casing jointly. The binding post seal structure of this scheme makes spare parts such as solenoid valve or DMTL pump binding post department can not leak, and the oil vapor in the EVAP system can not leak to the external world and then pollute external atmosphere through binding post, and on-vehicle diagnostic system detects the EVAP system leakage in addition and also can not because the leakage of binding post department and bright trouble lamp.
Description
Technical Field
The utility model relates to a binding post technical field especially relates to a binding post seal structure.
Background
National six regulations (GB18352.6-2016) impose a requirement for gas tightness on EVAP (evaporative emission control) systems. However, the terminals of the components used in the EVAP system, such as valves (desorption valves and carbon canister vent valves) or DMTL pumps (fuel tank leak diagnostic pumps), are prone to leak, which leads to poor results, such as abnormal standard exceeding of the air tightness detection and pollution generation, and therefore a terminal sealing structure is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a connecting terminal sealing structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a binding post seal structure, includes the plastic casing, be equipped with binding post, coil and sealing member in the plastic casing, binding post's one end and coil welded connection, install the sealing member between binding post other end and the plastic casing jointly.
Further, the sealing element is a sealing gasket or a sealant.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the binding post seal structure of this scheme makes spare parts such as solenoid valve or DMTL pump binding post department can not leak, and the oil vapor in the EVAP system can not leak to the external world and then pollute external atmosphere through binding post, and on-vehicle diagnostic system detects the EVAP system leakage in addition and also can not because the leakage of binding post department and bright trouble lamp.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is the utility model provides an overall structure section view schematic diagram of binding post seal structure.
In the figure: 1 plastic shell, 2 wiring terminals, 3 coils, 4 sealing parts, 101 connecting external atmosphere end and 102 connecting EVAP internal end.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1, a wiring terminal sealing structure comprises a plastic shell 1, wherein a wiring terminal 2, a coil 3 and a sealing element 4 are arranged in the plastic shell 1, one end of the wiring terminal 2 is connected with the coil 3 in a welding mode, and the sealing element 4 is arranged between the other end of the wiring terminal 2 and the plastic shell 1.
The coil 3 and the connecting terminal 2 are placed into a mold for injection molding so as to form a plastic shell 1 on the outer side, and a sealing member 4 in interference fit is added between the plastic shell 1 and the connecting terminal 2.
The coil 3 functions as: an external power supply is connected to the coil 3, the coil in the electromagnetic valve does work, and the electromagnetic valve is opened or closed; or the coil 3 in the DMTL pump does work to provide test pressure or vacuum for the EVAP system;
the function of the connecting terminal 2 is as follows: an external power supply is conducted to the coil 3 through the wiring terminal 2;
function of the plastic shell 1: supporting and protecting the solenoid valve or DMTL pump;
function of the seal 4: gas is prevented from passing through the gap between the wiring terminal 2 and the plastic shell 1;
the plastic shell 1 is connected with the wiring terminal 2 through injection molding, and due to expansion with heat and contraction with cold, a gap is generated between the plastic shell 1 and the wiring terminal 2, so that leakage is caused. By adding the sealing member 4 between the gap between the plastic case 1 and the terminal 2, leakage can be isolated.
The sealing element 4 is a sealing gasket or sealant.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (2)
1. The utility model provides a binding post seal structure, includes plastic casing (1), its characterized in that, be equipped with binding post (2), coil (3) and sealing member (4) in plastic casing (1), the one end and coil (3) welded connection of binding post (2), install sealing member (4) between binding post (2) other end and plastic casing (1) jointly.
2. A terminal sealing arrangement according to claim 1, characterised in that the sealing member (4) is a sealing gasket or sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021623458.XU CN212804205U (en) | 2020-08-06 | 2020-08-06 | Binding post seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021623458.XU CN212804205U (en) | 2020-08-06 | 2020-08-06 | Binding post seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212804205U true CN212804205U (en) | 2021-03-26 |
Family
ID=75081406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021623458.XU Expired - Fee Related CN212804205U (en) | 2020-08-06 | 2020-08-06 | Binding post seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212804205U (en) |
-
2020
- 2020-08-06 CN CN202021623458.XU patent/CN212804205U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |