CN107240528A - Sensitivity is high, performance is stable and service life length pressure switch - Google Patents
Sensitivity is high, performance is stable and service life length pressure switch Download PDFInfo
- Publication number
- CN107240528A CN107240528A CN201710583359.XA CN201710583359A CN107240528A CN 107240528 A CN107240528 A CN 107240528A CN 201710583359 A CN201710583359 A CN 201710583359A CN 107240528 A CN107240528 A CN 107240528A
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- Prior art keywords
- resilient element
- elastic component
- conductive
- sensitivity
- switch
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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
- H01H35/26—Details
-
- 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
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Push-Button Switches (AREA)
Abstract
It is high that the present invention provides a kind of sensitivity, the pressure switch of performance stabilization and service life length, wherein movable contact is located on stationary contact and is installed on conductive movable contact spring, it is movably arranged above and below insulated switch rod, positioned at the top of the first elastic component and in its vertical elastic deformation range, conductive resilient element is inclined at the top of insulated switch rod and in its vertical stroke range, one end of conductive resilient element is connected with the inwall of switch gear room, the conductive movable contact spring of other end connection, the pulling force abutting contact stationary contact that movable contact passes through conductive resilient element, second conducting terminal electrically connects conductive resilient element.It is preferred that conductive resilient element is extension spring.First elastic component is flexible sheet.Also include the second elastic component, preferably dish-shaped reed.The sensitivity of the present invention is high, performance is stable and service life length pressure switch sensitivity is high, performance is stable and service life is long, ingenious in design, simple for structure, and manufacture is easy, and cost is low, suitable for large-scale promotion application.
Description
Technical field
The present invention relates to switching technique field, more particularly to pressure switch technical field, specifically refer to a kind of sensitivity it is high,
The pressure switch of performance stabilization and service life length.
Background technology
A kind of pressure protective device pipe connecting piece on existing water purifier is passed through by microswitch either two contacts
The pressure that the elasticity of reed (phosphorus bronze sheet) is produced, the former microswitch is to realize switch closed and disconnected by switching sub- displacement
Come what is be controlled, have the disadvantage OP positions (Operating Position, operating position) and RP positions (Releasing
Position, reset position) it is unequal, it can thus produce a MD (Movement Differential, answer gap from)
Value, influences reaction sensitivity, and MD values are bigger, and sensitivity is poorer.Latter is to open two contacts to realize out with insulated switch rod top
Closed and disconnected is closed come what is be controlled, the contact pressure for having the disadvantage 1, contact is to lean on the elasticity of reed in itself to control, and is connect
Point pressure uniformity is bad；2nd, when contact disconnects, reed can apply a constant power to insulated switch rod, can so cause absolutely
Edge switchs rod and the plastic switch box of surrounding produces friction, and the life-span can greatly shorten, and easily produces plastic powders so as to dirty
Contaminate to the resistance between two contacts, can so cause the bad phenomenons such as sparking.
Accordingly, it is desirable to provide a kind of pressure switch, its sensitivity is high, performance is stable and service life is long.
The content of the invention
In order to overcome above-mentioned shortcoming of the prior art, it is an object of the present invention to provide a kind of sensitivity height, property
The pressure switch of energy stabilization and service life length, its sensitivity is high, performance is stable and service life is long, should suitable for large-scale promotion
With.
Another object of the present invention is to provide a kind of high sensitivity, performance stabilization and the pressure switch of service life length,
Its is ingenious in design, simple for structure, and manufacture is easy, and cost is low, suitable for large-scale promotion application.
To achieve the above objectives, opened the invention provides the pressure of a kind of sensitivity height, performance stabilization and service life length
Close, including shell, the first conducting terminal, the second conducting terminal, insulated switch rod, fluid passage, movable contact and stationary contact, it is described
First conducting terminal and second conducting terminal are plugged on the housing, and switch gear room and fluid are provided with the shell
Chamber, the switch gear room, which is located on the top of the fluid cavity, the shell, is provided with fluid inlet and fluid issuing, the fluid
Import connects the fluid issuing by the fluid cavity, and the fluid passage is vertically provided in the shell and connects described
Fluid cavity and the switch gear room, the movable contact and the stationary contact are located in the switch gear room and abut contact, and it is special
Point is that described sensitivity is high, performance is stable and service life length pressure switch also includes supporting member, conductive movable contact spring, led
Electric elastic component and the first elastic component, one end of first conducting terminal are located in the switch gear room, and the stationary contact is installed in
On one end of the first described conducting terminal, the supporting member is installed on the inwall of the switch gear room, the conductive movable contact spring
One end be vertically rotatably provided on the supporting member, the movable contact is located on the stationary contact and is installed in the conduction
The other end of movable contact spring, first elastic component is arranged in the fluid passage and seals the fluid passage, the insulation
It is removably set on above and below switch rod in the fluid passage, the insulated switch rod is located at the top of first elastic component simultaneously
In the vertical elastic deformation range of first elastic component, the conductive resilient element is inclined at the insulated switch rod
Top and in the vertical stroke range of the insulated switch rod, one end of the conductive resilient element is less than the conductive bullet
The other end of property part, one end of described conductive resilient element is connected with the inwall of described switch gear room, described electrically conductive elastic
The other end of part connects the conductive movable contact spring, and the movable contact passes through quiet described in the pulling force abutting contact of the conductive resilient element
Contact, second conducting terminal electrically connects the conductive resilient element.
It is preferred that the conductive resilient element is extension spring.
It is preferred that described sensitivity is high, performance is stable and service life length pressure switch also includes support member, it is described
Support member is installed on the inwall of described switch gear room, and one end of described conductive resilient element is connected with the support member.
It is preferred that first elastic component is flexible sheet.
It is preferred that first elastic component is horizontally installed in the fluid passage.
It is preferred that described sensitivity is high, performance is stable and service life length pressure switch also includes the second elastic component,
Second elastic component is arranged in the fluid passage and is located between the insulated switch rod and first elastic component, institute
The second elastic component is stated in the vertical elastic deformation range of the first described elastic component, the insulated switch rod is located at described the
In the vertical elastic deformation range of two elastic components.
More preferably, second elastic component is dish-shaped reed.
It is preferred that first conducting terminal is L-shaped conducting terminal, one end level of the first described conducting terminal is set
Put, the other end of first conducting terminal is vertically plugged on the housing.
It is preferred that the relatively described conductive movable contact spring of the supporting member is close to the conductive resilient element, described conduction is dynamic to be touched
One end of piece has bifurcated, and the two ends of the bifurcated are vertically rotatably provided on the supporting member, described conductive resilient element
The other end wear between the two ends of the supporting member and described bifurcated.
It is preferred that the other end of the insulated switch rod close to described conductive resilient element；Described conductive resilient element
The other end of the described conductive movable contact spring of other end connection；Or, the other end of described conductive movable contact spring is led less than described
One end of electronic contact.
Beneficial effects of the present invention are essentially consisted in：
1st, the movable contact of the pressure switch of sensitivity of the invention height, performance stabilization and service life length is located on stationary contact
And be installed on conductive movable contact spring, it is movably arranged above and below insulated switch rod, it is positioned at the top of the first elastic component and perpendicular positioned at it
Into regime of elastic deformation, conductive resilient element is inclined at the top of insulated switch rod and in its vertical stroke range,
One end of conductive resilient element is connected with the inwall of switch gear room, and the conductive movable contact spring of other end connection, movable contact passes through electrically conductive elastic
The pulling force abutting contact stationary contact of part, the second conducting terminal electrical connection conductive resilient element so that the first elastic component upwardly toward
The first resilient element urges insulated switch rod is moved and then led upwardly toward conductive resilient element when elastic deformation occurs for insulated switch rod
Causing conductive resilient element to occur elastic deformation upwardly toward the direction away from insulated switch rod, then band moving conductive movable contact spring turns upwards
Dynamic to cause movable contact to depart from stationary contact, therefore, its sensitivity is high, performance is stable and service life is long, should suitable for large-scale promotion
With.
2nd, the movable contact of the pressure switch of sensitivity of the invention height, performance stabilization and service life length is located on stationary contact
And be installed on conductive movable contact spring, it is movably arranged above and below insulated switch rod, it is positioned at the top of the first elastic component and perpendicular positioned at it
Into regime of elastic deformation, conductive resilient element is inclined at the top of insulated switch rod and in its vertical stroke range,
One end of conductive resilient element is connected with the inwall of switch gear room, and the conductive movable contact spring of other end connection, movable contact passes through electrically conductive elastic
The pulling force abutting contact stationary contact of part, the second conducting terminal electrical connection conductive resilient element so that the first elastic component upwardly toward
The first resilient element urges insulated switch rod is moved and then led upwardly toward conductive resilient element when elastic deformation occurs for insulated switch rod
Causing conductive resilient element to occur elastic deformation upwardly toward the direction away from insulated switch rod, then band moving conductive movable contact spring turns upwards
Dynamic to cause movable contact to depart from stationary contact, therefore, its is ingenious in design, simple for structure, and manufacture is easy, and cost is low, suitable for pushing away on a large scale
Wide application.
These and other objects, feature and the advantage of the present invention, by following detailed descriptions, drawings and claims are obtained
To fully demonstrate, and it can be achieved by the means specially pointed out in appended claims, device and combinations thereof.
Brief description of the drawings
Fig. 1 is a specific embodiment of the pressure switch of sensitivity height, performance stabilization and the service life length of the present invention
Main view schematic cross-sectional view.
Fig. 2 is the exploded perspective schematic diagram of the specific embodiment shown in Fig. 1.
Fig. 3 is Fig. 2 close-up schematic view.
(symbol description)
1 base；2 valve bodies；3 first elastic components；4 second elastic components；5 insulated switch rods；6 switch bodies；7 switch covers；8 second
Conducting terminal；9 conductive resilient elements；10 conductive movable contact springs；11 first conducting terminals；12 supporting members；13 perforation；14 stationary contacts；15
Guide limit rib；16 guiding grooves；17 locating dowels；18 positioning holes；19 screws；20 compression-joint covers；21 sealing rings；22 claws；23 is dynamic tactile
Point；24 shells；25 fluid passages；26 switch gear rooms；27 fluid cavitys；28 fluid inlets；29 fluid issuings；30 support members；31 fix
Hole.
Embodiment
In order to be more clearly understood that the technology contents of the present invention, described in detail especially exemplified by following examples.
Refer to shown in Fig. 1-Fig. 3, in the specific embodiment of the present invention, sensitivity of the invention is high, performance is stable
And the pressure switch of service life length includes shell 24, the first conducting terminal 11, the second conducting terminal 8, insulated switch rod 5, stream
Body passage 25, movable contact 23, stationary contact 14, supporting member 12, conductive movable contact spring 10, the elastic component 3 of conductive resilient element 9 and first, institute
State the first conducting terminal 11 and second conducting terminal 8 is plugged on the shell 24, switch is provided with the shell 24
Room 26 and fluid cavity 27, the switch gear room 26, which is located on the top of the fluid cavity 27, the shell 24, is provided with fluid inlet
28 and fluid issuing 29, the fluid inlet 28 connects the fluid issuing 29, the fluid passage by the fluid cavity 27
25 are vertically provided in the shell 24 and connect the fluid cavity 27 and the switch gear room 26, the movable contact 23 and described quiet
Contact 14 is located in the switch gear room 26 and abuts contact, and one end of first conducting terminal 11 is located at the switch gear room
In 26, the stationary contact 14 is installed on one end of the first described conducting terminal 11, and the supporting member 12 is installed in described open
On the inwall for closing room 26, one end of the conductive movable contact spring 10 is vertically rotatably provided on the supporting member 12, described dynamic tactile
Point 23 is located on the stationary contact 14 and is installed in the other end of the conductive movable contact spring 10, and first elastic component 3 is arranged on
In the fluid passage 25 and the fluid passage 25 is sealed, the insulated switch rod is removably set on the fluid about 5
In passage 25, the insulated switch rod 5 is located at the top of first elastic component 3 and positioned at the vertical of first elastic component 3
In regime of elastic deformation, the conductive resilient element 9 is inclined at the top of the insulated switch rod 5 and opened positioned at the insulation
In the vertical stroke range for closing rod 5, one end of the conductive resilient element 9 is less than the other end of the conductive resilient element 9, described
One end of conductive resilient element 9 is connected with the inwall of described switch gear room 26, and the other end of described conductive resilient element 9 connects institute
Conductive movable contact spring 10 is stated, the movable contact 23 is described by stationary contact 14 described in the pulling force abutting contact of the conductive resilient element 9
Second conducting terminal 8 electrically connects the conductive resilient element 9.
So that the first bullet described in when upwardly toward the insulated switch rod 5 elastic deformation occurs for first elastic component 3
Property part 3 promote the insulated switch rod 5 moved upwardly toward the conductive resilient element 9 so that cause the conductive resilient element 9 to
On be directed away from the insulated switch rod 5 direction occur elastic deformation then drive the conductive movable contact spring 10 to be rotated up making
Obtain the movable contact 23 and depart from the stationary contact 14；When first elastic component 3 resets downwards, the conductive resilient element 9 is downward
Reset and promote the insulated switch rod 5 to move down while driving the conductive movable contact spring 10 to rotate down so that the movable contact
Stationary contact 14 described in 23 abutting contacts.
The conductive resilient element 9 can be any suitable conductive resilient element, refer to shown in Fig. 1-Fig. 3, in the present invention
A specific embodiment in, the conductive resilient element 9 is extension spring.
One end of described conductive resilient element 9 is connected with the inwall of described switch gear room 26 can be using any suitable
Structure, it is preferred that described sensitivity is high, performance is stable and service life length pressure switch also includes support member 30, it is described
Support member 30 is installed on the inwall of described switch gear room 26, one end of described conductive resilient element 9 and the phase of support member 30
Connection.Refer to shown in Fig. 1-Fig. 3, be the situation of extension spring in the conductive resilient element 9 in the specific embodiment of the present invention
Under, an end hook of the extension spring is located on the support member 30, and another end hook of the extension spring is located at the conductive movable contact spring 10
On.
Another end hook of the extension spring, which is located on the conductive movable contact spring 10, can use any suitable structure, refer to
Shown in Fig. 1-Fig. 3, in the specific embodiment of the present invention, perforation 13, described drawing are provided with the conductive movable contact spring 10
Another end hook of spring is located in the perforation 13.
The support member 30 can be any suitable support member, in the specific embodiment of the present invention, the support
Part 30 is plastic supporting pieces, for example plastic support post.
The support member 30, which is installed on the inwall of described switch gear room 26, can use any suitable structure, refer to
Shown in Fig. 1-Fig. 3, in the specific embodiment of the present invention, the support member 30 is from the inwall of described switch gear room 26 to downward
Stretch to be formed.
The support member 30, which is installed on the inwall of described switch gear room 26, can be installed in the interior of described switch gear room 26
Any suitable position of wall, is referred to shown in Fig. 1-Fig. 3, and in the specific embodiment of the present invention, the support member 30 is pacified
It is located at the position of close second conducting terminal 8 of the inwall of described switch gear room 26.
First elastic component 3 can be any suitable elastic component, refer to shown in Fig. 1-Fig. 2, the one of the present invention
In specific embodiment, first elastic component 3 is flexible sheet, such as rubber diaphragm.First elastic component 3 can also be dish
Shape reed.
First elastic component 3, which is arranged in the fluid passage 25, can use any suitable structure, refer to figure
Shown in 1- Fig. 2, in the specific embodiment of the present invention, first elastic component 3 is horizontally installed in the fluid passage 25.
That is, first elastic component 3 is arranged on the cross section of the fluid passage 25.
The insulated switch rod 5 is located at the top of first elastic component 3 and positioned at the vertical bullet of first elastic component 3
Property deformation range in can use any suitable structure, refer to shown in Fig. 1-Fig. 2, the present invention a specific embodiment
In, described sensitivity is high, performance is stable and service life length pressure switch also includes the second elastic component 4, second bullet
Property part 4 be arranged in the fluid passage 25 and positioned between the insulated switch rod 5 and first elastic component 3, described the
Two elastic components 4 are located in the vertical elastic deformation range of the first described elastic component 3, and the insulated switch rod 5 is located at described the
In the vertical elastic deformation range of two elastic components 4.So as to which the insulated switch rod 5 is located at indirectly by second elastic component 4
The top of first elastic component 3 is simultaneously located in the vertical elastic deformation range of first elastic component 3, second elastic component
4 are used as the power transmission part between first elastic component 3 and the insulated switch rod 5.
So, first elastic component 3 upwardly toward second elastic component 4 occur elastic deformation when described in the first bullet
Property part 3 promote second elastic component 4 upwardly toward the insulated switch rod 5 occur elastic deformation so that promote it is described insulation open
Rod 5 is closed to move upwardly toward the conductive resilient element 9；First elastic component 3 downwards reset when described in the second elastic component 4 to
Lower to reset, the conductive resilient element 9 resets downwards, on the one hand promotes the insulated switch rod 5 to move down, and on the other hand drives
The conductive movable contact spring 10 is rotated down so that stationary contact 14 described in the abutting contact of the movable contact 23.
Second elastic component 4 can be any suitable elastic component, refer to shown in Fig. 1-Fig. 2, the one of the present invention
In specific embodiment, second elastic component 4 is dish-shaped reed.Second elastic component 4 can also be flexible sheet, such as rubber
Glue film.
First conducting terminal 11 can have any suitable shape, refer to shown in Fig. 1-Fig. 3, the present invention's
In one specific embodiment, first conducting terminal 11 is L-shaped conducting terminal, one end level of described the first conducting terminal 11
Set, the other end of first conducting terminal 11 is vertically plugged on the shell 24.
Second conducting terminal 8 can have any suitable shape, refer to shown in Fig. 1-Fig. 3, the present invention's
In one specific embodiment, second conducting terminal 8 is linear conducting terminal, is vertically plugged on the shell 24.
The supporting member 12, which is installed in, can be installed in the inwall of described switch gear room 26 on the inwall of the switch gear room 26
Any suitable position, refer to shown in Fig. 1-Fig. 3, the present invention a specific embodiment in, the supporting member 12 is relative
The conductive movable contact spring 10 has bifurcated, the bifurcated close to the conductive resilient element 9, one end of described conductive movable contact spring 10
Two ends be vertically rotatably provided on the supporting member 12, the other end of described conductive resilient element 9 wears the supporting member
12 and described bifurcated two ends between.
The insulated switch rod 5 can be close to the other end of described conductive resilient element 9, described conductive resilient element 9
One end or the middle part of the conductive resilient element 9, are referred to shown in Fig. 1-Fig. 2, in the specific embodiment of the present invention, described exhausted
Edge switchs the other end of the rod 5 close to described conductive resilient element 9.
The other end of described conductive resilient element 9, which connects the conductive movable contact spring 10, can connect the conductive movable contact spring 10
Any suitable position, refer to shown in Fig. 1-Fig. 3, the present invention a specific embodiment in, described conductive resilient element 9
The described conductive movable contact spring 10 of other end connection the other end.
The other end of described conductive movable contact spring 10 can be less than one end of described conductive movable contact spring 10, higher than described
One end of conductive movable contact spring 10 is in same level position with one end of described conductive movable contact spring 10, refers to Fig. 1-Fig. 3
Shown, in the specific embodiment of the present invention, the other end of described conductive movable contact spring 10 is less than described conductive movable contact spring
10 one end.
The fluid passage 25 can be arranged in a mutually vertical manner with the fluid cavity 27, can not also be arranged in a mutually vertical manner, please
Referring to shown in Fig. 1-Fig. 2, in the specific embodiment of the present invention, the fluid passage 25 is vertical with the fluid cavity 27 to be set
Put.I.e. described fluid cavity 27 is horizontally disposed with.
In order to effectively be tightly connected fluid line, refer to shown in Fig. 1-Fig. 2, in the specific embodiment of the present invention,
Sealing ring 21, such as O-ring are provided with the fluid inlet 28 and the fluid issuing 29, claw 22 passes through compression-joint cover 20
It is threadably engaged in respectively on the fluid inlet 28 and the fluid issuing 29.
The shell 24 can have any suitable structure, refer to shown in Fig. 1-Fig. 2, and one in the present invention is specific real
Apply in example, the shell 24 includes valve body 2, switch body 6 and switch cover 7, the fluid cavity 27 is arranged in the valve body 2, institute
State fluid inlet 28 and the fluid issuing 29 is arranged on the two ends of the valve body 2, the switch body 6 is arranged on the valve body 2
On, the lid of switch cover 7 is located in the switch body 6 to open described in the formation between the switch cover 7 and the switch body 6
Room 26 is closed, the fluid passage 25 is arranged in the valve body 2 and the switch body 6.
The switch body 6, which is arranged on the valve body 2, can use any suitable structure, refer to shown in Fig. 1-Fig. 2,
In the specific embodiment of the present invention, it is provided with the valve body 2 in positioning hole 18, the switch body 6 and is provided with locating dowel
17, the locating dowel 17 is plugged in the positioning hole 18.
The lid of switch cover 7, which is located in the switch body 6, can use any suitable structure, refer to Fig. 2-Fig. 3 institutes
Show, in the specific embodiment of the present invention, be provided with to be provided with guiding groove 16, the switch cover 7 in the switch body 6 and draw
Limit rib 15 is led, the guiding limit rib 15 is plugged in the guiding groove 16.
The switch cover 7, the switch body 6 and the valve body 2 can be fitted together using any suitable structure, please
Referring to shown in Fig. 2-Fig. 3, in the specific embodiment of the present invention, the switch cover 7, the switch body 6 and the valve body 2 are logical
Cross that screw 19 is worn and screw thread engages the switch cover 7, the switch body 6 and the valve body 2 and fitted together.
For the ease of pressure switch is fixed on into other positions, it is preferred that described sensitivity is high, performance is stable and uses
The pressure switch of long lifespan also includes being provided with fixing hole 31 in base 1, the base 1, and the shell 24 is fastened on the bottom
On seat 1, refer to shown in Fig. 1-Fig. 2, in the specific embodiment of the present invention, include valve body 2, switch body in the shell 24
6 and switch cover 7 in the case of, the valve body 2 is fastened on the base 1.
In the present invention, the second conducting terminal 8, conductive resilient element 9, conductive piece 10, movable contact 23, stationary contact 14 and the are touched
One conducting terminal 11 constitutes normally closed loop.
The present invention is in use, when being for example used in water purifier or needing equipment or the product of Stress control, it is only necessary to
Two high-pressure water pipes are distinguished into connecting fluid imports 28 and fluid issuing 29, fluid is by fluid inlet 28 through fluid cavity 27 from stream
Body outlet 29 flow out, when Fluid pressure is stepped up, fluid produce pressure promote the first elastic component 3, the first elastic component 3 by
To the effect progressively upward elastic deformation of pressure, the first elastic component 3 promotes insulated switch rod 5 to move up (to there is the second bullet
Property part 4 in the case of, the first elastic component 3 promote the upward elastic deformation of the second elastic component 4, the second elastic component 4 promote insulated switch
Rod 5 is moved up), insulated switch rod 5 promotes the upward elastic deformation of conductive resilient element 9, and band moving conductive touches piece 10 and is rotated up
So that movable contact 23 and stationary contact 14 disconnect, Stress control is completed.When Fluid pressure is reduced, the first elastic component 3 resets downwards
(in the case where there is the second elastic component 4, the second elastic component 4 resets downwards), conductive resilient element 9 resets downwards, on the one hand pushes away
Dynamic insulated switch rod 5 is moved down, and on the other hand band moving conductive movable contact spring 10 is rotated down so that the abutting contact of movable contact 23 is quiet
Contact 14.
When the first elastic component 3 is flexible sheet and the second elastic component 4 is dish-shaped reed, when Fluid pressure is stepped up
When, the pressure that fluid is produced promotes the upward elastic deformation of flexible sheet, and the effect that flexible sheet is under pressure progressively expands upwards,
Flexible sheet promotes dish-shaped reed upwardly-deformed, and when pressure reaches a timing, dish-shaped reed is upwardly-deformed to exceed a certain amount, dish
Shape reed moment promotes insulated switch rod 5 to move up, and instantaneously to 9 one pressure of conductive resilient element, conductive resilient element 9 upsprings
Property Zona transformans moving conductive movable contact spring 10 be rotated up driving movable contact 23 and stationary contact 14 to disconnect, complete Stress control.When
When Fluid pressure is reduced, the downward Stepwize Shrink of flexible sheet, conductive resilient element 9 resets downwards, on the one hand promotes insulated switch rod 5
Move down, and then promote the downward elastic deformation of dish-shaped reed, when pressure is reduced to a timing, dish-shaped reed is deformed more than downwards
A certain amount, dish-shaped reed momentary recovery, on the other hand band moving conductive movable contact spring 10 rotate down so that movable contact 23 is against connecing
Touch stationary contact 14.
Therefore, when the first elastic component 3 is flexible sheet and the second elastic component 4 is dish-shaped reed, when fluid passes through this
During pressure switch, when pressure rise, flexible sheet motion is promoted, the pressure transmission of flexible sheet gives dish-shaped reed, works as dish
When reed is deformed to a certain extent, moment, switching rod 5 was also one to conductive resilient element 9 to 5 one thrusts of switching rod
The thrust of individual moment, while the conductive movable contact spring 10 of 9 pairs of conductive resilient element is also the thrust of a moment, contact is in conductive resilient element
Disconnect, switch off in the presence of 9.
So as to, the present invention with the first conducting terminal 11 is fulcrum, and conductive movable contact spring 10 is arranged on fulcrum, then by conduction
One end connection support member 30 of elastic component 9, the conductive movable contact spring 10 of other end connection, under the active force of conductive resilient element 9, insulation
Rod 5 is switched in the case of no stress, two contacts are normally closed, and contact pressure size is completely by the pulling force of conductive resilient element 9
Determine, this ensure that the uniformity of contact pressure；Certain pressure can be produced when fluid passes through valve body 2, pressure reaches
Necessarily when (such as 0.25 ± 0.02MPa), promote dish-shaped reed moment to upspring by flexible sheet, promoted and led by insulated switch rod 5
Electronic contact 10 is flicked, and two contacts disconnect.When pressure is reduced to necessarily (such as 0.15 ± 0.02MPa), dish-shaped reed moment
Recover, two contacts are closed at.Acted on using the moment spring of dish-shaped reed, along with the active force of insulated switch rod 5 is applied to
On conductive movable contact spring 10, therefore MD=0；The contact pressure of two contacts is controlled by the pulling force of conductive resilient element 9, contact pressure
Power homogeneous constant, and insulated switch rod 5 acts on the other end of conductive resilient element 9, therefore active force is small, insulated switch rod 5 with
Switch body 6 produce frictional force very little so that the life-span greatly improve；Switch off and close flexible, disconnection closure clear and melodious, the life-span
It is multiplied, working life can be more than 200,000 times.In addition, the present invention is simple in construction, easy to assembly.
To sum up, the pressure switch sensitivity height of sensitivity of the invention height, performance stabilization and service life length, performance are stable
Ingenious in design and service life is long, simple for structure, manufacture is easy, and cost is low, suitable for large-scale promotion application.
As can be seen here, the purpose of the present invention is achieved completely and effectively.The function and structural principle of the present invention
Shown and illustrated in embodiment, under without departing substantially from the principle, embodiment can make any modification.So, this hair
The bright all variant embodiments included based on claim spirit and right.
Claims (10)
1. a kind of sensitivity is high, performance is stable and service life length pressure switch, including shell, the first conducting terminal, second
Conducting terminal, insulated switch rod, fluid passage, movable contact and stationary contact, first conducting terminal and second conducting end
Son is plugged on the housing, and switch gear room and fluid cavity are provided with the shell, and the switch gear room is located at the fluid cavity
Fluid inlet and fluid issuing are provided with top, the shell, the fluid inlet connects the stream by the fluid cavity
Body is exported, and the fluid passage is vertically provided in the shell and connects the fluid cavity and the switch gear room, described dynamic tactile
Point and the stationary contact are located in the switch gear room and abut contact, it is characterised in that described sensitivity is high, performance is steady
The pressure switch of fixed and service life length also includes supporting member, conductive movable contact spring, conductive resilient element and the first elastic component, and described the
One end of one conducting terminal is located in the switch gear room, and the stationary contact is installed on one end of the first described conducting terminal,
The supporting member is installed on the inwall of the switch gear room, and one end of the conductive movable contact spring is vertically rotatably provided in the branch
In bearing member, the movable contact is located on the stationary contact and is installed in the other end of the conductive movable contact spring, first elasticity
Part is arranged in the fluid passage and seals the fluid passage, and the stream is removably set on above and below the insulated switch rod
In body passage, the insulated switch rod is located at the top of first elastic component and positioned at the vertical elastic of first elastic component
In deformation range, the conductive resilient element is inclined at the top of the insulated switch rod and positioned at the insulated switch rod
In vertical stroke range, one end of the conductive resilient element is less than the other end of the conductive resilient element, described electrically conductive elastic
One end of part is connected with the inwall of described switch gear room, and the other end connection of described conductive resilient element is described conductive dynamic tactile
Piece, the movable contact is electrically connected by stationary contact described in the pulling force abutting contact of the conductive resilient element, second conducting terminal
Connect the conductive resilient element.
2. sensitivity as claimed in claim 1 is high, performance is stable and service life length pressure switch, it is characterised in that institute
It is extension spring to state conductive resilient element.
3. sensitivity as claimed in claim 1 is high, performance is stable and service life length pressure switch, it is characterised in that institute
The pressure switch of sensitivity height, performance stabilization and the service life length stated also includes support member, and the support member is installed in described
Switch gear room inwall on, one end of described conductive resilient element is connected with the support member.
4. sensitivity as claimed in claim 1 is high, performance is stable and service life length pressure switch, it is characterised in that institute
It is flexible sheet to state the first elastic component.
5. sensitivity as claimed in claim 1 is high, performance is stable and service life length pressure switch, it is characterised in that institute
The first elastic component is stated to be horizontally installed in the fluid passage.
6. sensitivity as claimed in claim 1 is high, performance is stable and service life length pressure switch, it is characterised in that institute
The pressure switch of sensitivity height, performance stabilization and the service life length stated also includes the second elastic component, and second elastic component is set
Put in the fluid passage and positioned between the insulated switch rod and first elastic component, second elastic component is located at
In the vertical elastic deformation range of the first described elastic component, the insulated switch rod is located at the vertical bullet of second elastic component
In property deformation range.
7. sensitivity as claimed in claim 6 is high, performance is stable and service life length pressure switch, it is characterised in that institute
It is dish-shaped reed to state the second elastic component.
8. sensitivity as claimed in claim 1 is high, performance is stable and service life length pressure switch, it is characterised in that institute
The first conducting terminal is stated for L-shaped conducting terminal, one end of the first described conducting terminal is horizontally disposed with, first conducting terminal
The other end vertically plug on the housing.
9. sensitivity as claimed in claim 1 is high, performance is stable and service life length pressure switch, it is characterised in that institute
The relatively described conductive movable contact spring of supporting member is stated close to the conductive resilient element, one end of described conductive movable contact spring has bifurcated,
The two ends of the bifurcated are vertically rotatably provided on the supporting member, and the other end of described conductive resilient element wears the branch
Between the two ends of bearing member and described bifurcated.
10. sensitivity as claimed in claim 1 is high, performance is stable and service life length pressure switch, it is characterised in that institute
State the other end of the insulated switch rod close to described conductive resilient element；The other end connection of described conductive resilient element is described to be led
The other end of electronic contact；Or, the other end of described conductive movable contact spring is less than one end of described conductive movable contact spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583359.XA CN107240528A (en) | 2017-07-18 | 2017-07-18 | Sensitivity is high, performance is stable and service life length pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583359.XA CN107240528A (en) | 2017-07-18 | 2017-07-18 | Sensitivity is high, performance is stable and service life length pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107240528A true CN107240528A (en) | 2017-10-10 |
Family
ID=59990756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710583359.XA Pending CN107240528A (en) | 2017-07-18 | 2017-07-18 | Sensitivity is high, performance is stable and service life length pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107240528A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045023A (en) * | 2021-04-26 | 2021-06-29 | 宁波利佳青石电气科技有限公司 | High-low voltage switch of water purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307349A (en) * | 2000-01-27 | 2001-08-08 | 株式会社不二工机 | Pressure switch |
| CN201178065Y (en) * | 2007-12-26 | 2009-01-07 | 张平 | Steam pressure control switch |
| CN204204743U (en) * | 2014-11-03 | 2015-03-11 | 深圳市实真环保科技有限公司 | Direct-acting type pressure switch |
| CN205810691U (en) * | 2016-07-25 | 2016-12-14 | 温州年辉电子科技有限公司 | Blast switch |
| CN206947249U (en) * | 2017-07-18 | 2018-01-30 | 上海侨亨实业有限公司 | The pressure switch of high sensitivity, stable performance and service life length |
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2017
- 2017-07-18 CN CN201710583359.XA patent/CN107240528A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307349A (en) * | 2000-01-27 | 2001-08-08 | 株式会社不二工机 | Pressure switch |
| CN201178065Y (en) * | 2007-12-26 | 2009-01-07 | 张平 | Steam pressure control switch |
| CN204204743U (en) * | 2014-11-03 | 2015-03-11 | 深圳市实真环保科技有限公司 | Direct-acting type pressure switch |
| CN205810691U (en) * | 2016-07-25 | 2016-12-14 | 温州年辉电子科技有限公司 | Blast switch |
| CN206947249U (en) * | 2017-07-18 | 2018-01-30 | 上海侨亨实业有限公司 | The pressure switch of high sensitivity, stable performance and service life length |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045023A (en) * | 2021-04-26 | 2021-06-29 | 宁波利佳青石电气科技有限公司 | High-low voltage switch of water purifier |
| CN113045023B (en) * | 2021-04-26 | 2022-07-15 | 宁波利佳青石电气科技有限公司 | High-low voltage switch of water purifier |
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