CN105244226B - Air pressure protection switch - Google Patents
Air pressure protection switch Download PDFInfo
- Publication number
- CN105244226B CN105244226B CN201510728640.9A CN201510728640A CN105244226B CN 105244226 B CN105244226 B CN 105244226B CN 201510728640 A CN201510728640 A CN 201510728640A CN 105244226 B CN105244226 B CN 105244226B
- Authority
- CN
- China
- Prior art keywords
- gas chamber
- shell
- contact chip
- air pressure
- chamber
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/245—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by the deformation of a body of elastic material
Abstract
The present invention discloses a kind of air pressure protection switch; including shell, flexible barrier; shell is divided into the first gas chamber and the second gas chamber by the flexible barrier, and the flexible barrier is located at the first gas chamber side and is equipped with contact chip, is equipped with and matched two conductive sheets of contact chip in first gas chamber；One in first gas chamber and the second gas chamber is the sealed air chamber with certain air pressure, when the first gas chamber is the sealed air chamber with certain air pressure, second gas chamber is equipped with the opening for being connect with other equipment, when second gas chamber is the sealed air chamber with certain air pressure, first gas chamber is equipped with the opening for being connect with other equipment；When the pressure of the first gas chamber is less than the pressure of the second gas chamber, conductive sheet is touched with contact chip, circuit communication, and when the pressure of the first gas chamber is more than the pressure of the second gas chamber, conductive sheet is detached with contact chip, and circuit disconnects.The present invention has many advantages, such as that simple in structure, manufacturing cost is cheap, stability is good.
Description
Technical field
The present invention relates to a kind of protections of air pressure to switch, and in particular to a kind of simple in structure, manufacturing cost is cheap, stablizes
Property good air pressure protection switch.
Background technology
Pressure switch is the device being combined with electric switch, when reaching preset Fluid pressure, make and break contact
Action.When system pressure is higher or lower than specified safe pressure, disk instantaneously moves in inductor, passes through connection
Guide rod pull switch connector is switched on or switched off, and when specified recovery value is down to or is risen to pressure, disk wink resets, and switchs automatic multiple
Position, or be briefly when by measuring pressure overrate, the free end of elastic element generates displacement, directly or through than
After push switch element, change the on off operating mode of switch element, achieve the purpose that control by measuring pressure.What pressure switch used
Elastic element has single-coil spring pipe, diaphragm, bellows and bellows etc..Currently, air pressure protection switch on the market mostly uses
All kinds of electronic components and elastic element are composed, and contain spring more, complicated, and manufacturing cost is higher.Spring error
It is larger, cause the stability of air pressure protection switch poor.
Invention content
In view of the deficiencies of the prior art, the present invention aims to provide a kind of simple in structure, manufacturing cost is low
It is honest and clean, the good air pressure protection switch of stability.
In order to achieve the above object, the present invention is using following technical solution：
Shell is divided into the first gas by a kind of air pressure protection switch, including shell, flexible barrier, the flexible barrier
Room and the second gas chamber, the side that the flexible barrier is located at the first gas chamber are equipped with contact chip, are equipped with and connect in first gas chamber
Matched two conductive sheets of contact；One in first gas chamber and the second gas chamber is the blanket gas with certain air pressure
Room, when the first gas chamber is sealed air chamber with certain air pressure, second gas chamber is equipped with for being connect with other equipment
Opening, when second gas chamber is sealed air chamber with certain air pressure, first gas chamber, which is equipped with, to be used for and other equipment
The opening of connection；When the pressure of the first gas chamber is less than the pressure of the second gas chamber, conductive sheet is touched with contact chip, circuit communication,
When the pressure of the first gas chamber is more than the pressure of the second gas chamber, conductive sheet is detached with contact chip, and circuit disconnection, the shell is by the
One shell and second shell are formed by connecting, the first shell be equipped with annular locating slot, the second shell be equipped with
The positioning protrusion for the annular that locating slot matches, the second shell are embedded in locating slot and first shell by the positioning protrusion of annular
Body connects.
As a preferred embodiment, the flexible barrier periphery is equipped with the limit protrusion of annular, the first shell and the
The junction of two shells is equipped with limiting groove corresponding with limit protrusion, and flexible barrier is embedded in limiting groove by limit protrusion
In be fixed on shell.
As a preferred embodiment, fixed platform is equipped in the middle part of the flexible barrier, the fixed platform is equipped with tree-shaped
Pillar, the contact chip is equipped with the positioning through hole that matches with pillar, and contact chip is caught in by positioning through hole in pillar fixed
On the stationary platform.
As a preferred embodiment, the periphery of the fixed platform is equipped with the change connected in star of annular.
As a preferred embodiment, the flexible barrier is made by rubber or silica gel.
As a preferred embodiment, the sealed air chamber is equipped with inflating port.
As a preferred embodiment, one end of the conductive sheet is located in the first gas chamber, and the other end is located at outside shell, and
Conductive sheet is located at the outer side of shell and is equipped with electrical wire wiring mouth.
As a preferred embodiment, the contact chip is equipped with columned contact chip electric shock point, and the conductive sheet is equipped with
Select matched conductive sheet electric shock point with contact chip electric shock, the contact chip and conductive sheet connect by contact chip get an electric shock point and
Conductive sheet electric shock point touches realization.
Shell is divided into the first gas chamber and the second gas chamber by the present invention by using flexible barrier, and is set in 2 air chambers
One is sealed air chamber, and another gas chamber is connect with other equipment, by the pressure comparison of sealed air chamber and non-tight gas chamber come real
Now the switch of circuit is controlled.Compared with prior art, it has the following advantages and advantage：1, it is not contained in structure of the invention
Complex electronics, it appears simpler, manufacturing cost is more cheap, is more advantageous to realization large-scale production；2, the present invention adopts
It uses by rubber or the flexible barrier of silica gel making as elastic element, compared with traditional spring, made of rubber or silica gel
Flexible barrier has better stability, and not easy to fatigue, can keep stable restoring force, error small for a long time so that empty
Atmospheric pressure protection switch can keep stable working condition for a long time, ensure the normal operation of equipment；3, the present invention does not have machine
Tool is worn, and service life is long, and reliable working performance.
More clearly to illustrate structure feature, technological means and its specific purposes reached and function of the present invention, under
In conjunction with attached drawing and specific embodiment, invention is further described in detail in face：
Description of the drawings
Fig. 1 is the exemplary construction sectional view of the present invention；
Fig. 2 is the case decomposition structural schematic diagram of the present invention；
Fig. 3 is the enlarged structure schematic diagram of contact chip and conductive sheet in the present invention；
Fig. 4 is another exemplary construction sectional view of the present invention.
Description of drawing identification：
10- first shells, 11- locating slots, 12- opening 20- second shells, 21- positioning protrusion, 22- inflating ports, 23- are opened
Mouthful, 30- flexible barriers, 31- limit protrusions, 32- fixed platforms, 33- pillars, 34- becomes connected in star, the first gas chambers of 40-, 50- the
Two gas chambers, 60- contact chips, 61- contact chips electric shock point, 62- positioning through hole, 70- conductive sheets, 71- conductive sheets electric shock point, 72- electricity
Line connection jaws.
Specific implementation mode
As shown in Figure 1, 2, a kind of air pressure protection switch includes shell, flexible barrier 30, and the flexible barrier 30 will
Shell is divided into the first gas chamber 40 and the second gas chamber 50, and the side that the flexible barrier 30 is located at the first gas chamber 40 is equipped with contact chip
60, it is equipped in first gas chamber 40 and 60 matched two conductive sheets 70 of contact chip.One end of the conductive sheet 70 is located at
In first gas chamber 40, the other end is located at outside shell, and conductive sheet 70 is located at the outer side of shell and is equipped with electrical wire wiring mouth 72.Pass through
Electrical wire wiring mouth 72, air pressure protection switch and circuit communication.Second gas chamber 50 is the sealed air chamber with certain air pressure, institute
The first gas chamber 40 is stated equipped with the opening 12 for being connect with other equipment.The sealed air chamber is equipped with inflating port 22.Gas passes through
Inflating port 22 is filled with gas chamber, after the indoor pressure value of gas reaches centainly, seals inflating port, forms the sealing with certain air pressure
Gas chamber.
The shell is formed by connecting by first shell 10 and second shell 20, and the first shell 10 is equipped with determining for annular
Position slot 11, the second shell 20 are equipped with the positioning protrusion 21 of the annular to match with locating slot 11, the second shell 20
Locating slot 11 is embedded in by the positioning protrusion 21 of annular to connect with first shell 10.30 periphery of the flexible barrier is equipped with ring
The junction of the limit protrusion 31 of shape, the first shell 10 and second shell 20 is equipped with limit corresponding with limit protrusion 31
Groove, flexible barrier 30, which is embedded in by limit protrusion 31 in limiting groove, to be fixed on shell.30 middle part of the flexible barrier is set
There are fixed platform 32, the fixed platform 32 to be equipped with tree-shaped pillar 33, the contact chip 60 is equipped with to match with pillar 33
Positioning through hole 62, contact chip 60 is caught in pillar 33 by positioning through hole 62 and is fixed in fixed platform 32.The fixation is flat
The periphery of platform 32 is equipped with the change connected in star 34 of annular.The flexible barrier 30 is made by rubber or silica gel, the flexibility
Interlayer 30 has better stability, and not easy to fatigue, can keep stable restoring force, error small for a long time so that air
Pressure-head switch can keep stable working condition for a long time, ensure the normal operation of equipment.
As shown in figure 3, the contact chip 60 be equipped with columned contact chip get an electric shock point 61, the conductive sheet 70 be equipped with
61 matched conductive sheets electric shock points 71 are selected in contact chip electric shock, are touched by contact chip the contact chip 60 and connecting for conductive sheet 70
Electricity selects 61 and touches realization with conductive sheet electric shock point 71.
The present invention operation principle be：When the pressure of the first gas chamber 40 is less than the pressure of the second gas chamber 50, conductive sheet 70
Touched with contact chip 60, circuit communication, when the pressure of the first gas chamber 40 be more than the second gas chamber 50 pressure when, conductive sheet 70 with connect
Contact 60 detaches, and circuit disconnects.The present embodiment is suitable for protection charger and air-extractor, but not limited to this.
As shown in Fig. 4 another embodiment of the present invention, with above-described embodiment the difference is that：Described first
Gas chamber 40 is the sealed air chamber with certain air pressure, and second gas chamber 50 is equipped with the opening 23 for being connect with other equipment.
The present embodiment is suitable for the water-bed apparatus for work of protection, but not limited to this.
The above described is only a preferred embodiment of the present invention, be not intended to limit the invention, therefore it is every according to this hair
Bright technology is practical to above example any modification, equivalent replacement, improvement and so on, still falls within technical solution of the present invention
In the range of.
Claims (6)
1. a kind of air pressure protection switch, it is characterised in that：Including shell, flexible barrier, the flexible barrier divides shell
It is divided into the first gas chamber and the second gas chamber, the side that the flexible barrier is located at the first gas chamber is equipped with contact chip, first gas chamber
It is interior to be equipped with and matched two conductive sheets of contact chip；One in first gas chamber and the second gas chamber is with certain air pressure
Sealed air chamber, when the first gas chamber is sealed air chamber with certain air pressure, second gas chamber is equipped with for being set with other
The opening of standby connection, when second gas chamber is the sealed air chamber with certain air pressure, first gas chamber be equipped with for
The opening of other equipment connection；When the pressure of the first gas chamber is less than the pressure of the second gas chamber, conductive sheet is touched with contact chip, electricity
Road is connected to, and when the pressure of the first gas chamber is more than the pressure of the second gas chamber, conductive sheet is detached with contact chip, and circuit disconnects, described
Shell is formed by connecting by first shell and second shell, and the first shell is equipped with the locating slot of annular, the second shell
It is equipped with the positioning protrusion of the annular to match with locating slot, the second shell is embedded in locating slot by the positioning protrusion of annular
It is connected with first shell；Fixed platform is equipped in the middle part of the flexible barrier, the periphery of the fixed platform is equipped with annular
Become connected in star, the flexible barrier is made by rubber or silica gel.
2. air pressure protection switch according to claim 1, it is characterised in that：The flexible barrier periphery is equipped with annular
The junction of limit protrusion, the first shell and second shell is equipped with limiting groove corresponding with limit protrusion, it is flexible every
Layer, which is embedded in by limit protrusion in limiting groove, to be fixed on shell.
3. air pressure protection switch according to claim 2, it is characterised in that：The fixed platform is equipped with tree-shaped convex
Column, the contact chip are equipped with the positioning through hole to match with pillar, and contact chip is caught in positioning through hole by pillar and is fixed on
On fixed platform.
4. air pressure protection switch according to claim 1, it is characterised in that：The sealed air chamber is equipped with inflating port.
5. air pressure protection switch according to claim 1, it is characterised in that：One end of the conductive sheet is located at the first gas
Interior, the other end are located at outside shell, and conductive sheet is located at the outer side of shell and is equipped with electrical wire wiring mouth.
6. air pressure protection switch according to claim 5, it is characterised in that：The contact chip is equipped with columned connect
Contact electric shock point, the conductive sheet is equipped with selects matched conductive sheet electric shock point, the contact chip and conduction with contact chip electric shock
Piece connect by contact chip electric shock select with conductive sheet get an electric shock put touch realization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728640.9A CN105244226B (en) | 2015-10-30 | 2015-10-30 | Air pressure protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728640.9A CN105244226B (en) | 2015-10-30 | 2015-10-30 | Air pressure protection switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105244226A CN105244226A (en) | 2016-01-13 |
| CN105244226B true CN105244226B (en) | 2018-10-02 |
Family
ID=55041827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510728640.9A Active CN105244226B (en) | 2015-10-30 | 2015-10-30 | Air pressure protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105244226B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876209B (en) * | 2017-02-27 | 2019-01-25 | 厦门理工学院 | A kind of attachment device of VD4 vacuum medium voltage breaker contact arm and pole |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03274629A (en) * | 1990-03-26 | 1991-12-05 | Tokai Rika Co Ltd | Manufacture of pressure switch |
| CN202285216U (en) * | 2011-09-22 | 2012-06-27 | 浙江力夫机电制造有限公司 | Novel pressure control switch |
| CN202772042U (en) * | 2012-09-25 | 2013-03-06 | 浙江鸿华电子有限公司 | Pneumatic switch capable of controlling turn-on time |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3541298C1 (en) * | 1985-11-22 | 1987-04-02 | Rudolf Barger Gmbh | Pneumatically controllable electrical switch |
| CN2591756Y (en) * | 2002-12-31 | 2003-12-10 | 乐清市力夫机电有限公司 | Single-pole control pressure switch |
| US9227764B2 (en) * | 2013-03-15 | 2016-01-05 | Marc G. Martino | Pilf resistant packaging system |
| GB2513593B (en) * | 2013-04-30 | 2015-11-04 | Kidde Tech Inc | Pneumatic pressure switch |
| CN205264601U (en) * | 2015-10-30 | 2016-05-25 | 深圳市华泽电气有限公司 | Air pressure protection switch |
-
2015
- 2015-10-30 CN CN201510728640.9A patent/CN105244226B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03274629A (en) * | 1990-03-26 | 1991-12-05 | Tokai Rika Co Ltd | Manufacture of pressure switch |
| CN202285216U (en) * | 2011-09-22 | 2012-06-27 | 浙江力夫机电制造有限公司 | Novel pressure control switch |
| CN202772042U (en) * | 2012-09-25 | 2013-03-06 | 浙江鸿华电子有限公司 | Pneumatic switch capable of controlling turn-on time |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105244226A (en) | 2016-01-13 |
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| GR01 | Patent grant |