CN207572311U - A kind of vacuum pressure switch - Google Patents
A kind of vacuum pressure switch Download PDFInfo
- Publication number
- CN207572311U CN207572311U CN201721671331.3U CN201721671331U CN207572311U CN 207572311 U CN207572311 U CN 207572311U CN 201721671331 U CN201721671331 U CN 201721671331U CN 207572311 U CN207572311 U CN 207572311U
- Authority
- CN
- China
- Prior art keywords
- connection terminal
- vacuum pressure
- patch bay
- sheath
- buckle
- 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
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- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The utility model discloses a kind of vacuum pressure switch, including threaded block, bakelite base, sheath and connection terminal, central through hole in the threaded block air admission hole is equipped with adjusting screw, the adjusting screw passes through spring compression diaphragm unit, three contact pieces on the diaphragm unit are contacted with six side's copper sheathings, the patch bay of six side's copper sheathings and the bakelite base other end is tensed by screw, extraction wire is welded on the patch bay, it is wrapped around patch bay with resin, it is wrapped up and protecting by sheath outside the bakelite base, the extraction wire end presses a connection terminal, the connection terminal side is equipped with buckle, the buckle is connect with external harness.The utility model action is safe and reliable, and control vacuum pressure precision is high, simple in structure；Pipe type rubber dust-proof casing can effective protection pressure sensor, dust-proof anti-extrusion；Connection terminal is equipped with buckle, and switching is convenient.
Description
Technical field
The utility model is related to pressure switch technical field, more particularly to a kind of vacuum pressure switch.
Background technology
Brake power-assisted especially vacuum brake power-assisted is generally designed on automobile at present, in fuel-engined vehicle, is relied primarily on
Engine work when inlet manifold vacuum degree with ensure brake power-assisted.Vacuum pressure switch is used in existing vacuum system, but
Since existing vacuum pressure switch exists, control vacuum degree is poor, and short life, the electric current born is low, causes frequently to send out in vacuum system
Error signal causes vacuum generator continuous firing, easily breaks down, and when operation brings a great deal of trouble to user.
Utility model content
Technical problem to be solved in the utility model is that in view of the deficiencies of the prior art, providing a kind of action safety can
It leans on, controls vacuum pressure vacuum pressure switch with high accuracy.
To achieve these goals, the technical solution of the utility model is：
A kind of vacuum pressure switch, including threaded block, bakelite base, sheath and connection terminal, the threaded block air admission hole
Interior central through hole is equipped with adjusting screw, and the adjusting screw passes through spring compression diaphragm unit, the diaphragm unit packet
Diaphragm, spring base, terminal and three contact pieces are included, the spring base lower end is connected with spring, upper end connection terminal, and the diaphragm is set
It is placed between spring base and terminal, three contact pieces are contacted with six side's copper sheathings, and six side's copper sheathings and bakelite base are another
The patch bay at end is tensed by screw, and extraction wire is welded on the patch bay, is wrapped around patch bay with resin, institute
It is wrapped up and protecting by sheath outside the bakelite base stated, the extraction wire end presses a connection terminal, the connection terminal
Side is equipped with buckle, and the buckle is connect with external harness.
Further, a circle seal groove is equipped on the inside of the threaded block, O-ring seal is installed in seal groove.
Further, the sheath is equipped with the pipe type boot seal of wire through-hole for side.
The operation principle of the utility model：When medium vacuum degree is in it is higher when, since diaphragm unit is by vacuum influence,
Spring lateral pressure is less than three contact piece lateral pressures, and diaphragm unit overcomes spring force downlink, and three contact pieces are detached from hexagonal copper sheathing, open
Pass is off；When vacuum degree is smaller, spring force is more than the pressure difference value of diaphragm unit upper and lower sides, three contact pieces and six
Angle copper sheathing contact, switch connection.
The beneficial effects of the utility model：The utility model action is safe and reliable, and control vacuum pressure precision is high, structure letter
It is single；Pipe type rubber dust-proof casing can effective protection pressure sensor, dust-proof anti-extrusion；Connection terminal is equipped with buckle, switching
It is convenient.
Description of the drawings
Fig. 1 is the schematic elevation view of the utility model；
Fig. 2 is the schematic diagram in A-A direction of the utility model；
In figure, 1, adjusting screw；2nd, threaded block；3rd, spring；4th, diaphragm unit；4-1, diaphragm；4-2, spring base；4-3, end
Button；5th, O-ring seal；6th, bakelite base；7th, conducting wire；8th, sheath；9th, connection terminal；10th, it is buckled；11st, hexagonal copper sheathing；12nd, wiring
Frame；13rd, three contact piece.
Specific embodiment
Specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
As shown in Figs. 1-2, a kind of vacuum pressure switch, including threaded block 2, bakelite base 6, sheath 8 and connection terminal 9, institute
The central through hole in 2 air admission hole of threaded block stated is equipped with adjusting screw 1, and the adjusting screw 1 compresses diaphragm group by spring 3
Part 4, the diaphragm unit 4 includes diaphragm 4-1, spring base 4-2, terminal 4-3 and three contact pieces 13, under the spring base 4-2
End is connected with spring 3, and upper end connection terminal 4-3, the diaphragm 4-1 is set between spring base 4-2 and terminal 4-3, described
Three contact pieces 13 are contacted with six side's copper sheathings 11, and the patch bay 12 of six side's copper sheathings 11 and 4 other end of bakelite base passes through screw
It tenses, extraction wire 7 is welded on the patch bay 12,12 surrounding of patch bay is wrapped with resin, outside the bakelite base 4
Protection is wrapped up in face by sheath 8, and 7 end of extraction wire presses a connection terminal 9, and 9 side of connection terminal is equipped with
Buckle 10, the buckle 10 is connect with external harness.
2 inside of threaded block is equipped with a circle seal groove, and O-ring seal 5 is equipped in seal groove；The sheath 8
The pipe type boot seal of wire through-hole is equipped with for side.
The course of work of the utility model：When medium vacuum degree be in it is higher when, since diaphragm unit 4 is by vacuum shadow
It rings, 3 lateral pressure of spring is less than three contact pieces, 13 lateral pressure, and diaphragm unit 4 overcomes spring force downlink, three contact pieces 13 and hexagonal copper
Set 11 is detached from, and switch is off；When vacuum degree is smaller, spring force is more than the pressure difference value of 4 upper and lower sides of diaphragm unit,
Three contact pieces 13 are contacted with hexagonal copper sheathing 11, switch connection.
Claims (3)
1. a kind of vacuum pressure switch, including threaded block（2）, bakelite base（6）, sheath（8）And connection terminal（9）, feature exists
In：The threaded block（2）Central through hole in air admission hole is equipped with adjusting screw（1）, the adjusting screw（1）Pass through spring
（3）Compress diaphragm unit（4）, the diaphragm unit（4）Including diaphragm（4-1）, spring base（4-2）, terminal（4-3）It is touched with three
Spot film（13）, the spring base（4-2）Lower end is connected with spring（3）, upper end connection terminal（4-3）, the diaphragm（4-1）Setting
In spring base（4-2）With terminal（4-3）Between, three contact pieces（13）With six side's copper sheathings（11）Contact, six sides
Copper sheathing（11）With bakelite base（6）The patch bay of the other end（12）It is tensed by screw, the patch bay（12）Upper welding is drawn
Conducting wire（7）, patch bay（12）Surrounding is wrapped with resin, the bakelite base（6）Outside is by sheath（8）Package protection, institute
The extraction wire stated（7）End presses a connection terminal（9）, the connection terminal（9）Side is equipped with buckle（10）, it is described
Buckle（10）It is connect with external harness.
2. a kind of vacuum pressure switch according to claim 1, it is characterised in that：The threaded block（2）Inside is equipped with
One encloses seal groove, and O-ring seal is equipped in seal groove（5）.
3. a kind of vacuum pressure switch according to claim 2, it is characterised in that：The sheath（8）It is equipped with for side
The pipe type boot seal of wire through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671331.3U CN207572311U (en) | 2017-12-05 | 2017-12-05 | A kind of vacuum pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671331.3U CN207572311U (en) | 2017-12-05 | 2017-12-05 | A kind of vacuum pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207572311U true CN207572311U (en) | 2018-07-03 |
Family
ID=62690094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721671331.3U Expired - Fee Related CN207572311U (en) | 2017-12-05 | 2017-12-05 | A kind of vacuum pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207572311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021114961A1 (en) * | 2019-12-12 | 2021-06-17 | 海信（山东）冰箱有限公司 | Refrigerator |
-
2017
- 2017-12-05 CN CN201721671331.3U patent/CN207572311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021114961A1 (en) * | 2019-12-12 | 2021-06-17 | 海信（山东）冰箱有限公司 | Refrigerator |
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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: 20180703 Termination date: 20211205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |