CN107978484A - Pressure controller - Google Patents
Pressure controller Download PDFInfo
- Publication number
- CN107978484A CN107978484A CN201610933875.6A CN201610933875A CN107978484A CN 107978484 A CN107978484 A CN 107978484A CN 201610933875 A CN201610933875 A CN 201610933875A CN 107978484 A CN107978484 A CN 107978484A
- Authority
- CN
- China
- Prior art keywords
- stationary contact
- component
- plectrum
- pressure controller
- pressure
- 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
-
- 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
-
- 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
- H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The present invention relates to Pressure Control Technology field,Disclose a kind of pressure controller,Including switch module (100) and pressure assembly (200),The switch module (100) includes pedestal (10),Plectrum component (20) with movable contact (21),The common interface component (70) being connected with the plectrum component (20),First interface component (30) with the first stationary contact (31),Second interface component (40) with the second stationary contact (41),It is characterized in that,Further include the shrapnel locking member (50) for being arranged on described plectrum component (20) one end and be arranged on the trimming part (60) of plectrum component (20) other end,The trimming part (60) can be such that the plectrum component (20) is deviated between first stationary contact (31) and second stationary contact (41),The present invention can make the critical point of the driving force of pressure controller switch module adjustable,Improve operation precision,Ensure switch action characteristic and sensitivity.
Description
Technical field
The invention belongs to Pressure Control Technology field, and in particular to a kind of pressure controller with micromatic setting.
Background technology
Pressure controller use in industrial control technology is very wide.Such as safeguard protection as refrigeration system and control unit
Part, prevents that admission pressure is too low or pressure at expulsion is excessive.Fig. 1 is a kind of structure diagram of the pressure controller of typical structure,
It is generally made of switch module and pressure assembly.Fig. 2 is the internal junction of the common pressure controller switch module of the prior art
Structure schematic diagram.
As depicted in figs. 1 and 2.Switch module 100 ' includes pedestal 10 ', and plectrum component 20 ' is provided with pedestal 10 ',
Plectrum component 20 ' is generally made of sheet metal, and riveting thereon has movable contact 21 (connection A interfaces).It is additionally provided with pedestal 10 '
Common interface component 70, first interface component 30 and second interface component 40.Riveting has metal on first interface component 30
First stationary contact 31 (connection B interface), the second stationary contact 41 that riveting has metal on second interface component 40 (connect C to connect
Mouthful).First stationary contact 31 and the second stationary contact 41 are arranged on the both sides of movable contact 21.
Its operation principle is that the pressure chamber 80 on pressure assembly is introduced into the fluid media (medium) in system, and is become by bellows
Shape is converted into a displacement signal, which is converted into drive displacement by driving part 90 by mechanical drive mode makes to dial
Chip part 20 ' shifts.By the movable contact 21 on plectrum component 20 ' to 31 direction of the first stationary contact or the second stationary contact 41
Direction is mobile and abuts, to realize that the first stable state that A interface ends are connected with B interface end is connected with A interface ends with C interface end
The second stable state between switching, achieve the purpose that control system.
But the pressure controller of the prior art, using in the larger occasion of rated voltage electric current, only passed by machinery
Move to drive plectrum component, action displacement cannot ensure sensitivity during switch motion, furthermore the manufacture due to each part and dress
With error, often to consider to retain distance enough between movable contact and the second stationary contact in design, can reach reliable
Switching.So it is slower to cause the switch module action executing of pressure controller, switch motion rebound time length
The problems such as, also exacerbate the quality problems such as contact wear and contact part fatigue durability difference.
The content of the invention
The present invention is intended to provide a kind of pressure controller with micromatic setting, makes the driving force that pressure controls reduce and carry
Sensitivity during high switch motion, improves the reliability of product.
Pressure controller provided by the invention includes:
Switch module, the switch module include pedestal, the plectrum component with movable contact, are connected with the plectrum component
Common interface component, the first interface component with the first stationary contact, the second interface component with the second stationary contact, it is described
First stationary contact and second stationary contact are arranged on the both sides of the movable contact；
Pressure assembly, the pressure assembly include pressure chamber and driving part, and the driving part is according to the pressure chamber
The change of middle pressure drives the plectrum component, to realize the first of the movable contact and the first stationary contact point contact the stabilization shape
State, with the switching between the second stable state of the movable contact and the second stationary contact point contact；
Further include the shrapnel locking member for being arranged on described plectrum component one end and be arranged on the plectrum component other end
Trimming part, the trimming part can make the plectrum component between first stationary contact and second stationary contact partially
Move.
The technical solution that the present invention provides, shrapnel locking member and trimming part are set on switch module, passes through adjusting
Plectrum component is deflected to set position during kick critical condition.Initial position i.e. between movable contact and stationary contact, is realized
The critical point of the driving force of pressure controller switch module is adjustable, improves operation precision, ensures switch action characteristic and sensitive
Property, further increase product reliability.
As the further extension of above-mentioned technical proposal, the elastic locking part includes shrapnel seat and bullet is located at the bullet
Kick spring between bar and the plectrum component, the kick spring include kick portion and spring；
Further, when the kick spring is in kick critical localisation, the movable contact is located at first stationary contact
Between second stationary contact；
Further, when the kick spring is in kick critical localisation, the movable contact and first stationary contact
Distance, and the movable contact are equal with the distance of second stationary contact；
Further, the plectrum component from first stable state to the driving force of second stable state, and
The plectrum component it is equal to the driving force of first stable state from second stable state；
Further, the open slot of triangle is provided with the shrapnel seat, the two sides of the open slot are the kick
The confined planes in portion, the kick portion abut the bottom of the open slot；
Further, the trimming part includes being arranged on the screw base (61) of the pedestal and is arranged in the screw base
Adjusting screw, the forced section coordinated with the adjusting screw is provided with the plectrum component；
Further, there is the conical surface or inclined-plane coordinated with the adjusting screw on the screw base or on the forced section；
Further, there is the conical surface coordinated with the screw base or the forced section in the adjusting screw；
Further, the trimming part further includes readjustment screw.
The further technical solution that the present invention provides, can optimize product structure design, control to adjust pressure simple
Reliably.
Brief description of the drawings
The accompanying drawings which form a part of this application are used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1：A kind of structure diagram of the pressure controller of typical structure；
Fig. 2：A kind of internal structure schematic diagram of the pressure controller switch module of the prior art；
Fig. 3：A kind of internal structure schematic diagram for pressure controller switch module that the present invention provides；
Fig. 4：The structure diagram of plectrum component in Fig. 3 in switch module；
Fig. 5：The schematic cross-section of adjusting screw in Fig. 3 in switch module in I-I positions；
Fig. 6 A：Structure diagram of the plectrum component that the present invention provides under kick critical condition；
Fig. 6 B：Structure diagram of the plectrum component that the present invention provides under working stability state；
Fig. 7：The internal structure schematic diagram for another pressure controller switch module that the present invention provides；
Fig. 8：The schematic cross-section of adjusting screw in Fig. 7 in switch module in I-I positions；
Reference numeral：
100/100 '-switch module,
10/10 '-pedestal；
20/20 '-plectrum component
21- movable contacts；
22- (strip member 2) forced section, 23- plectrum matrixes；
30- first interfaces component, the first stationary contacts of 31-；
40- second interfaces component, the second stationary contacts of 41-；
50- shrapnel locking members；
51- shrapnels seat, 52- kick springs；
53- kicks portion, 54- spring；
55- open slots；
60- trimming parts；
61/61 '-screw base, 62- adjusting screws；
63- readjustments screw, 64- inclined-planes；
70 common interface components；
200- pressure assemblies；
80- pressure chambers, 81- interfaces；
90- driving parts, shift fork 91.
Embodiment
Fig. 3 is a kind of internal structure schematic diagram for pressure controller switch module that the present invention provides, and Fig. 4 is to be opened in Fig. 3
The structure diagram of the plectrum component in component is closed, Fig. 5 is the schematic cross-section of the adjusting screw in switch module in Fig. 3.
As shown in Fig. 3, Fig. 4 and Fig. 5, and referring to Fig. 1.Pressure controller includes switch module 100 and pressure in the present embodiment
Power component 200.
Pressure assembly 200 includes pressure chamber 80 and driving part 90.Pressure chamber 80 generally passes through bellows springs and pedestal
Welding forms the cavity of sealing, and cavity is introduced into the fluid media (medium) in control system by interface 81.The pressure change of fluid media (medium)
Bellows springs are made to deform, driving part 90 is mechanically abutted with bellows springs to transmit the displacement of change.
Switch module 100 includes pedestal 10, and pedestal 10 is generally processed into the knot of box body shape by plastic material injection molding manner
Structure, is formed with the multiple mounting structure (not shown)s for meeting each functor installation in box body.
Common interface component 70, first interface component 30 and second interface component 40 are fixed with the pedestal 10 of box body shape.
A ports are offered on common interface component 70, B ports are offered on first interface component 30, are opened up on second interface component 40
There is C-terminal mouth.A ports, B ports, C-terminal mouth are connected (not shown) by lead with exterior electrical control system.
Plectrum component 20 is arranged on pedestal 10, and fixation is connected with common interface component 70, dialling in plectrum component 20
Sheet matrix 23 is generally made of sheet metal, and riveting thereon has movable contact 21, i.e. movable contact 21 is turned on A ports.Connect first
Riveting has the first stationary contact 31 of metal in mouthpiece 30, i.e. the first stationary contact 31 is turned on B ports；In second interface component 40
Upper to rivet the second stationary contact 41 for having metal, i.e. the second stationary contact 41 is turned on C-terminal mouth.First stationary contact 31 and the second stationary contact
41 are arranged on the both sides of movable contact 21.
Shift fork 91 on driving part 90 is arranged on the middle section position of plectrum matrix 23, the deforming position that bellows springs occur
Mechanical switch is crossed by Mobile Communication, makes shift fork 91 drive plectrum matrix 23 to deflect, to realize that 21 and first stationary contact 31 of movable contact connects
Switching between the second stable state that the first tactile stable state is contacted with movable contact 21 with the second stationary contact 41.
Elastic locking part 50 is provided with 20 one end of plectrum component, elastic locking part 50 includes shrapnel seat 51 and kick
Spring 52.Shrapnel seat 51 is fixed on pedestal 10, and bullet sets kick spring 52 between shrapnel seat 51 and plectrum matrix 23.
The other end of plectrum component 20 is provided with trimming part 60, trimming part 60 includes screw base 61 and adjusting screw
62.Screw base 61 is semicircular structure in the present embodiment, and be may be integrally formed on pedestal 10.Have in screw base 61 and adjust
Save screw 62.
Strip member 22 is fixed with by riveting on the plectrum matrix 23 of plectrum component 20, strip member 22 is arranged on spiral shell
Notch one end of nail seat 61, forced section 22 of the strip member 22 as adjusting screw 62.
Screw base 61 is in the up big and down small conical surface (can also be inclined-plane) along the axial direction of adjusting screw, so in adjusting screw
62 when rotating down, because screw base 61 is immovable, the power effect that is squeezed of the forced section 22 of plectrum component 20 is sent out backward
Raw displacement.And drive plectrum matrix 23 to show Q positions greatly and rotate for basic point.
Certainly, it is to be provided with the conical surface on screw base 61 in above-mentioned implementation, technology extension can also be carried out, in strip member
22 or adjusting screw 62 on inclined-plane or the conical surface are set.As long as can make forced section 22 be squeezed power effect be subjected to displacement backward, also may be used
To reach the effect of 23 rotation displacement of driving plectrum matrix, so details are not described herein.
Fig. 6 A and Fig. 6 B are the plectrum component that provides of the present invention respectively under kick critical condition and under working stability state
Structure diagram.
As shown in Figure 6 A and 6 B.One end of shrapnel seat 51 towards plectrum matrix 23 is provided with the open slot 55 of triangle,
Kick spring 52 includes kick portion 53 and spring 54.Kick portion 53 is connected to the bottom of open slot 55, and spring 54 is connected to
In the opening of 23 front end of plectrum matrix.When kick portion 53 is in kick critical condition, plectrum matrix 23 is only subject to axial thrust
F1, but this state is instantaneous position unstable in change procedure, and after critical condition, plectrum matrix 23, which removes, is subject to axis
To outside thrust F1, also it is subject to a radial component F2 vertical with power F1, power F2 to promote plectrum matrix 23 to deflect, make movable contact 21
Contacted with the first stationary contact 31 or the second stationary contact 41, reach the first stable state or the second stable state.So exterior apply
Power be more than stable state under power F2 make, can just switch over action.
When being abnormal change, the first stationary contact 31 or the second stationary contact 41 can not backstop plectrum matrix 23 when, open slot
55 both sides can further backstop, avoid that accident occurs.So the two sides of open slot 55 can be as the limit in kick portion 53
Plane.
After installation is complete, the position only when plectrum matrix 23 is in kick critical condition is between the first stationary contact 31 and
When between two stationary contacts 41, pressure controller switch module can work normally, and stablize shape in the first stable state and second
Switch between state.But due to installation and foozle, position during critical condition may shift.So the present invention provides
Improved structure, adjusting screw 62 can be rotated after mounting, make plectrum matrix 23 rotate setting kick critical condition when position
Put.
The distance of 21 and first stationary contact 31 of movable contact is such as set as H1, movable contact 21 and the distance of the second stationary contact 41 are
H2.As a kind of preferable design, make H1=H2 by adjusting adjusting screw 62.So can be by running part structure tune
It is whole, completed with optimizing with minimum stroke to contact change-over, due to displacement very little, so the switching of activation system defencive function
Speed is accelerated.
Driving plectrum component 20 is such as set from the first stable state to the driving force of second stable state as F3；Driving
Plectrum component 20 is F4 from the second stable state to the driving force of the first stable state.As further optimization design, pass through
Adjusting adjusting screw 62 makes F3=F4.So can be by running part structural adjustment, to optimize and minimum driving force
Complete to contact change-over, due to driving force very little, so product structure can reduce.
Fig. 7 is the internal structure schematic diagram for another pressure controller switch module that the present invention provides, and Fig. 8 is in Fig. 7
The schematic cross-section of adjusting screw in switch module.
As shown in Figure 7 and Figure 8.It is with preceding solution difference, the embodiment is on the basis of preceding solution
Enterprising one-step optimization, is provided with readjustment screw 63 on screw base 61, can be by returning when screw base 61 adjusts stroke excess
Adjust the readjustment of screw 63 to set, make adjusting work easily operated.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of pressure controller, including:
Switch module (100), the switch module (100) include pedestal (10), the plectrum component (20) with movable contact (21),
Common interface component (70), the first interface component with the first stationary contact (31) being connected with the plectrum component (20)
(30), the second interface component (40) with the second stationary contact (41), first stationary contact (31) and second stationary contact
(41) both sides of the movable contact (21) are arranged on；
Pressure assembly (200), the pressure assembly (200) include pressure chamber (80) and driving part (90), the driving part
(90) the plectrum component (20) is driven according to the change of pressure in the pressure chamber (80), with realize the movable contact (21) and
First stable state of the first stationary contact (31) contact, contacts with the movable contact (21) and second stationary contact (41)
The second stable state between switching, it is characterised in that
Further include the shrapnel locking member (50) for being arranged on described plectrum component (20) one end and be arranged on the plectrum component
(20) trimming part (60) of the other end, the trimming part (60) can make the plectrum component (20) in first stationary contact
(31) deviated between second stationary contact (41).
2. pressure controller as claimed in claim 1, it is characterised in that the elastic locking part (50) includes shrapnel seat
(51) and bullet is located at kick spring (52) between the shrapnel seat (51) and the plectrum component (20), the kick spring
(52) kick portion (53) and spring (54) are included.
3. pressure controller as claimed in claim 2, it is characterised in that when the kick spring (52) is in kick critical potential
When putting, the movable contact (21) is between first stationary contact (31) and second stationary contact (41).
4. pressure controller as claimed in claim 3, it is characterised in that when the kick spring (52) is in kick critical potential
When putting, the distance (H1) of the movable contact (21) and first stationary contact (31), and the movable contact (21) and described second
The distance (H2) of stationary contact (41) is equal (i.e. H1=H2).
5. pressure controller as claimed in claim 3, it is characterised in that the plectrum component (20) is stablized from described first
State to second stable state driving force, and the plectrum component (20) from second stable state to described
The driving force of one stable state is equal.
6. pressure controller as claimed in claim 2, it is characterised in that be provided with opening for triangle on the shrapnel seat (51)
Mouth groove (55), the two sides of the open slot (55) are the confined planes of the kick portion (53), and the kick portion (53) abuts institute
State the bottom of open slot (51).
7. such as claim 1-6 any one of them pressure controllers, it is characterised in that the trimming part (60) includes setting
Screw base (61) and the adjusting screw (62) that is arranged in the screw base (61) in the pedestal (10), the plectrum component
(20) forced section (22) coordinated with the adjusting screw (62) is provided with.
8. pressure controller as claimed in claim 7, it is characterised in that on the screw base (61) or the forced section (22)
With the conical surface or inclined-plane coordinated with the adjusting screw (62).
9. pressure controller as claimed in claim 7, it is characterised in that have and the screw on the adjusting screw (62)
The conical surface that seat (61) or the forced section (22) coordinate.
10. pressure controller as claimed in claim 7, it is characterised in that the trimming part (60) further includes readjustment screw
(63)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933875.6A CN107978484B (en) | 2016-10-25 | 2016-10-25 | Pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933875.6A CN107978484B (en) | 2016-10-25 | 2016-10-25 | Pressure controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107978484A true CN107978484A (en) | 2018-05-01 |
| CN107978484B CN107978484B (en) | 2019-12-17 |
Family
ID=62004821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610933875.6A Active CN107978484B (en) | 2016-10-25 | 2016-10-25 | Pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107978484B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112256085A (en) * | 2019-07-22 | 2021-01-22 | 浙江三花制冷集团有限公司 | Pressure controller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061582A (en) * | 1962-08-23 | 1967-03-15 | Controls Co Of America | Improvements in fluid-pressure sensitive electric switch devices |
| DE1665332B2 (en) * | 1966-07-12 | 1975-08-21 | Patinvest Patent- U. Investment Ag, Chur (Schweiz) | Pressure-dependent, multi-pole electrical snap-action switch |
| CN202549711U (en) * | 2012-03-14 | 2012-11-21 | 佛山市顺德区标准化研究与促进中心 | Manual micro switch |
| CN202601506U (en) * | 2012-05-16 | 2012-12-12 | 台州市耀达工贸有限公司 | Pressure controller |
| CN204696034U (en) * | 2015-06-26 | 2015-10-07 | 浙江力夫机电制造有限公司 | Pressure controller |
| CN205428828U (en) * | 2016-03-28 | 2016-08-03 | 浙江力夫机电制造有限公司 | Pressure controller |
-
2016
- 2016-10-25 CN CN201610933875.6A patent/CN107978484B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061582A (en) * | 1962-08-23 | 1967-03-15 | Controls Co Of America | Improvements in fluid-pressure sensitive electric switch devices |
| DE1665332B2 (en) * | 1966-07-12 | 1975-08-21 | Patinvest Patent- U. Investment Ag, Chur (Schweiz) | Pressure-dependent, multi-pole electrical snap-action switch |
| CN202549711U (en) * | 2012-03-14 | 2012-11-21 | 佛山市顺德区标准化研究与促进中心 | Manual micro switch |
| CN202601506U (en) * | 2012-05-16 | 2012-12-12 | 台州市耀达工贸有限公司 | Pressure controller |
| CN204696034U (en) * | 2015-06-26 | 2015-10-07 | 浙江力夫机电制造有限公司 | Pressure controller |
| CN205428828U (en) * | 2016-03-28 | 2016-08-03 | 浙江力夫机电制造有限公司 | Pressure controller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112256085A (en) * | 2019-07-22 | 2021-01-22 | 浙江三花制冷集团有限公司 | Pressure controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107978484B (en) | 2019-12-17 |
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Effective date of registration: 20220818 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |
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