CN102610433A - Oil pressure switch - Google Patents
Oil pressure switch Download PDFInfo
- Publication number
- CN102610433A CN102610433A CN 201210060294 CN201210060294A CN102610433A CN 102610433 A CN102610433 A CN 102610433A CN 201210060294 CN201210060294 CN 201210060294 CN 201210060294 A CN201210060294 A CN 201210060294A CN 102610433 A CN102610433 A CN 102610433A
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- China
- Prior art keywords
- insulator
- oil pressure
- movable contact
- pressure switch
- spot film
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Abstract
An oil pressure switch mainly comprises a shell, a sealing ring, a diaphragm, a push rod, a fixed contact sheet, a movable contact sheet, a spring and a plug assembly. The sealing ring, the diaphragm, the push rod, the fixed contact sheet, the movable contact sheet and the spring are sequentially placed in an inner cavity of the shell from bottom to top, the fixed contact sheet and the movable contact sheet are connected onto the push rod with a partial boss in a sleeved manner, the spring is disposed in a groove of the movable contact sheet, the plug assembly consists of an insert and an insulator by means of injection molding, the shell is riveted with the plug assembly, a ventilating hole is additionally arranged in a groove on a side surface of the insulator, a flexible waterproof sheath is additionally disposed on the periphery of the insulator, the upper edge of the waterproof sheath is in close fit with a waterproof sheath embedding groove arranged on the surface of the insulator, and the lower edge of the waterproof sheath is in close fit with a lower boss of the groove on the side surface of the insulator. The oil pressure switch has the advantages that dust and water in an external environment are prevented from entering the inner cavity of the oil pressure switch along an injection molding joint surface of the insulator and the insert, contacts are prevented from being oxidized and ablated, and the oil pressure switch is simple in manufacturing process, low in cost and fine in waterproof performance.
Description
Technical field
The present invention relates to engine, is a kind of Oil pressure switch used in the engine lubrication system more specifically.
Background technology
Oil pressure switch is used very extensive, particularly at automobile, motorcycle field.At present; Oil pressure switch all adopts structure as shown in Figure 1; Form by housing, sealing ring, diaphragm, push rod, stationary contact spot film, movable contact spot film, spring and plug assembly; Upwards be placed with sealing ring, diaphragm, push rod, stationary contact spot film, movable contact spot film and spring successively from the bottom in the inner chamber of said housing, and stationary contact spot film, movable contact spot film be socketed on the push rod that has the part boss, spring places in the groove of movable contact spot film; Said plug assembly is made up of inserted sheet and insulator injection moulding, and housing and plug assembly are riveted together.
The operation principle of this structure is: diaphragm is as pressure element; When oil pressure during greater than spring force; Diaphragm promotes push rod, and push rod separates the movable contact spot film with the stationary contact spot film, and the movable contact spot film contacts the conducting loop with the stationary contact spot film under the effect of spring when oil pressure is lower than spring force.The pressure-sensitive warning function of Oil pressure switch is controlled at engine oil pressure more than the best lubrication pressure of engine, so that engine is in Optimum Lubrication work.
But not enough below this kind structure exists: Oil pressure switch can not waterproof, and the dust in the external environment and the water capacity are prone to the air-vent entering product cavity along insulator and inserted sheet injection moulding faying face place, cause pitting of contact, and the Oil pressure switch damage loses warning function.
Summary of the invention
The objective of the invention is to overcome the weak point of existing switch, a kind of dustproof, waterproof is provided, a kind of Oil pressure switch that manufacturing process is simple, cost is low, water resistance is good.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of Oil pressure switch; Mainly form by housing, sealing ring, diaphragm, push rod, stationary contact spot film, movable contact spot film, spring and plug assembly; Upwards be placed with sealing ring, diaphragm, push rod, stationary contact spot film, movable contact spot film and spring in the inner chamber of said housing successively from the bottom; And stationary contact spot film, movable contact spot film are socketed on the push rod that has the part boss; Spring places in the groove of movable contact spot film, and said plug assembly is made up of inserted sheet and insulator injection moulding, and housing and plug assembly are riveted together; It is characterized in that increasing in the groove of described insulator side an air vent hole; The periphery of insulator increases by a soft water-proof jacket, and the water-proof jacket caulking groove that water-proof jacket upper edge and insulator surface are provided with closely cooperates, and the lower boss of lower edge and insulator side groove closely cooperates.
Described water-proof jacket is the rubber waterproof sheath.
Air vent hole is used for balance cock inside and outside pressure, avoids water to get into Oil pressure switch inside along insulator and inserted sheet injection moulding faying face, and it is inner that the anti-sealing of water-proof jacket gets into Oil pressure switch by air vent hole.
The invention has the beneficial effects as follows: dust and water get into the Oil pressure switch inner chamber along insulator and inserted sheet injection moulding faying face in the prevention external environment, thereby avoid contact oxidation, ablation, and manufacturing process is simple, cost is low, water resistance is good.
Description of drawings
Fig. 1 is that present Oil pressure switch master looks cross-sectional view.
Fig. 2 is that the master of switch of the present invention looks cross-sectional view.
Among the figure, 1. housing, 2. sealing ring, 3. diaphragm, 4. push rod, 5. stationary contact spot film, 6. movable contact spot film, 7. spring, 8. insulator, 9. inserted sheet, 10. lateral grooves, 11. air vent holes, 12. water-proof jacket caulking grooves, 13. water-proof jackets.
Embodiment
A kind of Oil pressure switch as shown in Figure 2; Mainly form by housing 1, sealing ring 2, diaphragm 3, push rod 4, stationary contact spot film 5, movable contact spot film 6, spring 7 and plug assembly; Upwards be placed with sealing ring 2, diaphragm 3, push rod 4, stationary contact spot film 5, movable contact spot film 6 and spring 7 in the inner chamber of said housing 1 successively from the bottom; And stationary contact spot film 5, movable contact spot film 6 are socketed on the push rod 4 that has the part boss; Spring 4 places in the groove of movable contact spot film 6, and said plug assembly is made up of inserted sheet 9 and insulator 8 injection mouldings, and housing 1 is riveted together with plug assembly; Increase by an air vent hole 11 in described insulator 8 lateral grooves 10; The periphery of insulator 8 increases by a soft water-proof jacket 13, and the water-proof jacket caulking groove 12 that water-proof jacket 13 upper edges and insulator 8 surfaces are provided with closely cooperates, and the lower boss of lower edge and insulator 8 lateral grooves 10 closely cooperates.
Described water-proof jacket 13 is the rubber waterproof sheath.
Claims (2)
1. Oil pressure switch; Mainly form by housing, sealing ring, diaphragm, push rod, stationary contact spot film, movable contact spot film, spring and plug assembly; Upwards be placed with sealing ring, diaphragm, push rod, stationary contact spot film, movable contact spot film and spring successively from the bottom in the inner chamber of said housing, and stationary contact spot film, movable contact spot film be socketed on the push rod that has the part boss, spring places in the groove of movable contact spot film; Said plug assembly is made up of inserted sheet and insulator injection moulding; Housing and plug assembly are riveted together, and it is characterized in that increases by an air vent hole in the groove of described insulator side, and the periphery of insulator increases by a soft water-proof jacket; The water-proof jacket caulking groove that water-proof jacket upper edge and insulator surface are provided with closely cooperates, and the lower boss of lower edge and insulator side groove closely cooperates.
2. a kind of Oil pressure switch as claimed in claim 1 is characterized in that described water-proof jacket is the rubber waterproof sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210060294 CN102610433A (en) | 2012-03-09 | 2012-03-09 | Oil pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210060294 CN102610433A (en) | 2012-03-09 | 2012-03-09 | Oil pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102610433A true CN102610433A (en) | 2012-07-25 |
Family
ID=46527729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210060294 Pending CN102610433A (en) | 2012-03-09 | 2012-03-09 | Oil pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102610433A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952778A (en) * | 2016-01-06 | 2017-07-14 | 日本电产东测有限公司 | Hydraulic selector |
| CN108915817A (en) * | 2018-08-03 | 2018-11-30 | 柴德维 | A kind of engine oil pressure alarm structure |
| CN109026262A (en) * | 2018-08-03 | 2018-12-18 | 柴德维 | A kind of automobile engine oil pressure alarm |
-
2012
- 2012-03-09 CN CN 201210060294 patent/CN102610433A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952778A (en) * | 2016-01-06 | 2017-07-14 | 日本电产东测有限公司 | Hydraulic selector |
| CN106952778B (en) * | 2016-01-06 | 2020-04-21 | 日本电产东测有限公司 | Hydraulic switch |
| CN108915817A (en) * | 2018-08-03 | 2018-11-30 | 柴德维 | A kind of engine oil pressure alarm structure |
| CN109026262A (en) * | 2018-08-03 | 2018-12-18 | 柴德维 | A kind of automobile engine oil pressure alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |