CN206710011U - A kind of pressure sensitive device with temperature-compensating - Google Patents
A kind of pressure sensitive device with temperature-compensating Download PDFInfo
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- CN206710011U CN206710011U CN201720587659.0U CN201720587659U CN206710011U CN 206710011 U CN206710011 U CN 206710011U CN 201720587659 U CN201720587659 U CN 201720587659U CN 206710011 U CN206710011 U CN 206710011U
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- movable contact
- contact
- temperature
- inlet pipe
- oil inlet
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Abstract
The utility model discloses a kind of pressure sensitive device with temperature-compensating, including oil inlet pipe, breakback contact stand, movable contact seat；One end of the oil inlet pipe is sealed using convoluted diaphragm, and the outside connection insulating knockout pin of convoluted diaphragm, insulating knockout pin is fixedly connected with movable contact seat；The insulating knockout pin is made by agate；Stationary contact is set on the breakback contact stand, movable contact, the stationary contact and movable contact face are set on the movable contact seat；When oil inlet pipe oil pressure >=X MPas, stationary contact departs from movable contact；As oil inlet pipe oil pressure ＜ X MPa, stationary contact contacts with movable contact, and wherein X takes positive number.The purpose of this utility model is to provide a kind of pressure sensitive device with temperature-compensating, to solve the problems, such as that it is larger that the action of pressure sensitive device in the prior art is affected by temperature, realizes the purpose of error caused by reducing temperature.
Description
Technical field
It the utility model is related to pressure sensitive device field, and in particular to a kind of pressure sensitive dress with temperature-compensating
Put.
Background technology
For the switch applied to precision pressure signal, wherein pressure signal device structure typically uses diaphragm-contact
Formula is realized.Because pressure is small, diaphragm stroke is very small, is very easy to be consumed by the elastic hysteresis of diaphragm, any
Small change can all cause overproof, thus debug more difficult.And -40 DEG C~+140 DEG C of signalling means operating temperature range,
Also error requirements are met in the case of high/low temperature, and as the change of temperature, the elasticity of diaphragm inevitably change,
Structural member also inevitably expands with heat and contract with cold effect, and these all necessarily cause the change of action point pressure, it is easy to
Make to exceed upper lower deviation during operating point high/low temperature, the product of normal temperature passed examination off-gage phenomenon is occurred in applied at elevated temperature.
Utility model content
The purpose of this utility model is to provide a kind of pressure sensitive device with temperature-compensating, to solve prior art
The action of middle pressure sensitive device is affected by temperature the problem of larger, realizes the purpose of error caused by reducing temperature.
The utility model is achieved through the following technical solutions：
A kind of pressure sensitive device with temperature-compensating, including oil inlet pipe, breakback contact stand, movable contact seat；The oil-feed
One end of pipe is sealed using convoluted diaphragm, and the outside connection insulating knockout pin of convoluted diaphragm, insulating knockout pin is fixed with movable contact seat to be connected
Connect；The insulating knockout pin is made by agate；Stationary contact is set on the breakback contact stand, dynamic touch is set on the movable contact seat
Point, the stationary contact and movable contact face；When oil inlet pipe oil pressure >=X MPas, stationary contact departs from movable contact；When oil inlet pipe oil
When pressing ＜ X MPa, stationary contact contacts with movable contact, and wherein X takes positive number.
Action for pressure sensitive device in the prior art is affected by temperature the problem of larger, and the utility model proposes one
Pressure sensitive device of the kind with temperature-compensating, one end of oil inlet pipe are sealed using convoluted diaphragm, the outside connection of convoluted diaphragm
Insulating knockout pin, therefore the oil pressure of oil inlet pipe can be transferred directly on convoluted diaphragm, and insulated top is driven by the deformation of convoluted diaphragm
Bar is acted.Because insulating knockout pin is fixedly connected with movable contact seat, therefore insulating knockout pin action can drive movable contact seat to act,
So as to realize the contact and disengaging between movable contact and stationary contact.When specifically used, convoluted diaphragm is adjusted in manufacturing process
Surface tension, set action pressure X is actually needed with this basis.When oil inlet pipe oil pressure >=X MPas, the pressure acts on ripple
On diaphragm, convoluted diaphragm center is set to produce displacement, the displacement promotes insulating knockout pin to move forward, so as to push movable contact seat open, made
Movable contact and stationary contact separate.As oil inlet pipe oil pressure ＜ X MPa, its center displacement is reduced, and causes the movement of insulating knockout pin
Amount is reduced so that movable contact and stationary contact contact, realizes circuit communication with this, user can feed back electricity according to connection is actually needed
Road is so as to obtaining signal.Insulating knockout pin is using the minimum agate of linear expansion coefficient, in addition to excellent electrical insulation properties, moreover it is possible to
Enough abilities that there is the change of temperature-compensating membrane flexive, supporting construction to expand with heat and contract with cold simultaneously, effectively reduce and be influenced by temperature, it is real
The purpose of error caused by now reducing temperature.
Further, in addition to alarm device；When stationary contact contacts with movable contact, stationary contact, movable contact and alarm fill
Put and be connected into alarm loop.It is easy to by alarm device, user is intuitively obtained internal oil pressure situation, obtains clearly evident
Feedback.
Further, in addition to housing, the oil inlet pipe, breakback contact stand, movable contact seat, convoluted diaphragm, insulating knockout pin are equal
In housing；The arrival end of wherein oil inlet pipe is arranged on surface of shell.Each equipment is arranged on into inside by housing to be protected
Shield, improve intensity and performance.
Preferably, the alarm device is warning lamp.
Preferably, X values 0.84~0.98.X takes 0.84~0.98, is the operating pressure based on precision pressure induction installation
Near 2Mpa, oil pressure that its oil inlet pipe the introduces then matched scope for taking 0.84~0.98 is excessively quick less than the scope
LC is easily collided and maloperation by external force, is significantly reduced higher than the scope sensitivity level.
The utility model compared with prior art, has the following advantages and advantages：
1st, a kind of pressure sensitive device with temperature-compensating of the utility model, when oil inlet pipe oil pressure >=X MPas, pressure
Act on convoluted diaphragm, convoluted diaphragm center is produced displacement, the displacement promotes insulating knockout pin to move forward, dynamic so as to push open
Contact shoe, separate movable contact and stationary contact.As oil inlet pipe oil pressure ＜ X MPa, its center displacement is reduced, and causes insulated top
The amount of movement of bar is reduced so that movable contact and stationary contact contact.
2nd, a kind of pressure sensitive device with temperature-compensating of the utility model, insulating knockout pin are minimum using linear expansion coefficient
Agate, in addition to excellent electrical insulation properties, additionally it is possible at the same have temperature-compensating membrane flexive change, supporting construction heat
The ability of swollen shrinkage, effectively reduce and be influenced by temperature.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is the structural representation of the utility model specific embodiment；
Fig. 2 is the overall schematic of the utility model specific embodiment.
Mark and corresponding parts title in accompanying drawing：
1- oil inlet pipes, 2- breakback contact stands, 21- stationary contacts, 3- movable contact seats, 31- movable contacts, 4- convoluted diaphragms, 5- insulation
Push rod, 6- housings, 7- alarm devices.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1：
A kind of pressure sensitive device with temperature-compensating as shown in Figures 1 and 2, including oil inlet pipe 1, breakback contact stand 2,
Movable contact seat 3；One end of the oil inlet pipe 1 is sealed using convoluted diaphragm 4, the outside connection insulating knockout pin 5 of convoluted diaphragm 4, absolutely
Edge push rod 5 is fixedly connected with movable contact seat 3；The insulating knockout pin 5 is made by agate；Set on the breakback contact stand 2 quiet
Contact 21, movable contact 31, the stationary contact 21 and the face of movable contact 31 are set on the movable contact seat 3；When the oil pressure of oil inlet pipe 1 >=
At X MPas, stationary contact 21 departs from movable contact 31；As 1 oil pressure ＜ X MPa of oil inlet pipe, stationary contact 21 contacts with movable contact 31,
Wherein X takes 0.88.Also include alarm device 7；When stationary contact 21 contacts with movable contact 31, stationary contact 21, movable contact 31 and police
Reporting device is connected into alarm loop.Also include housing 6, the oil inlet pipe 1, breakback contact stand 2, movable contact seat 3, convoluted diaphragm 4, absolutely
Edge push rod 5 is respectively positioned in housing 6；The arrival end of wherein oil inlet pipe 1 is arranged on the surface of housing 6.The alarm device 7 is warning
Lamp.When oil inlet pipe oil pressure >=X MPas, the pressure is acted on convoluted diaphragm, convoluted diaphragm center is produced displacement, the displacement
Promote insulating knockout pin to move forward, so as to push movable contact seat open, separate movable contact and stationary contact.As oil inlet pipe oil pressure ＜ X million
During pa, its center displacement is reduced, and causes the amount of movement of insulating knockout pin to reduce so that movable contact and stationary contact contact, with this reality
Existing circuit communication, user can obtain signal according to connection feedback circuit is actually needed.Insulating knockout pin is using line expansion system
The minimum agate of number, in addition to excellent electrical insulation properties, additionally it is possible to while there is the change of temperature-compensating membrane flexive, support
The ability that structure is expanded with heat and contract with cold, effectively reduce and be influenced by temperature, realize the purpose of error caused by reducing temperature.Work as stationary contact
When being contacted with movable contact, stationary contact, movable contact and alarm device are connected into alarm loop.It is easy to, by alarm device, make user
Internal oil pressure situation is intuitively obtained, obtains clearly evident feedback.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (5)
1. a kind of pressure sensitive device with temperature-compensating, it is characterised in that including oil inlet pipe (1), breakback contact stand (2), move
Contact shoe (3)；One end of the oil inlet pipe (1) is sealed using convoluted diaphragm (4), the outside connection insulated top of convoluted diaphragm (4)
Bar (5), insulating knockout pin (5) are fixedly connected with movable contact seat (3)；The insulating knockout pin (5) is made by agate；The stationary contact
Stationary contact (21) is set on point seat (2), movable contact (31) is set on the movable contact seat (3), the stationary contact (21) is touched with dynamic
Point (31) face；When oil inlet pipe (1) oil pressure >=X MPas, stationary contact (21) departs from movable contact (31)；When oil inlet pipe (1) oil
When pressing ＜ X MPa, stationary contact (21) contacts with movable contact (31), and wherein X takes positive number.
2. a kind of pressure sensitive device with temperature-compensating according to claim 1, it is characterised in that also including alarm
Device；When stationary contact (21) contacts with movable contact (31), stationary contact (21), movable contact (31) and alarm device are connected into alarm
Loop.
3. a kind of pressure sensitive device with temperature-compensating according to claim 1, it is characterised in that also including housing
(6), the oil inlet pipe (1), breakback contact stand (2), movable contact seat (3), convoluted diaphragm (4), insulating knockout pin (5) are respectively positioned on housing
(6) in；The arrival end of wherein oil inlet pipe (1) is arranged on housing (6) surface.
A kind of 4. pressure sensitive device with temperature-compensating according to claim 2, it is characterised in that the alarm dress
It is set to warning lamp.
A kind of 5. pressure sensitive device with temperature-compensating according to claim 1, it is characterised in that X values 0.84
~0.98.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720587659.0U CN206710011U (en) | 2017-05-24 | 2017-05-24 | A kind of pressure sensitive device with temperature-compensating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720587659.0U CN206710011U (en) | 2017-05-24 | 2017-05-24 | A kind of pressure sensitive device with temperature-compensating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206710011U true CN206710011U (en) | 2017-12-05 |
Family
ID=60462918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720587659.0U Active CN206710011U (en) | 2017-05-24 | 2017-05-24 | A kind of pressure sensitive device with temperature-compensating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206710011U (en) |
-
2017
- 2017-05-24 CN CN201720587659.0U patent/CN206710011U/en active Active
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