CN219370897U - Liquid expansion type temperature controller - Google Patents
Liquid expansion type temperature controller Download PDFInfo
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- CN219370897U CN219370897U CN202320457589.2U CN202320457589U CN219370897U CN 219370897 U CN219370897 U CN 219370897U CN 202320457589 U CN202320457589 U CN 202320457589U CN 219370897 U CN219370897 U CN 219370897U
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- shell
- elastic sheet
- diaphragm
- terminal
- contact piece
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Temperature-Responsive Valves (AREA)
Abstract
The utility model relates to a liquid expansion type temperature controller which comprises a shell, a liquid temperature sensing element, a diaphragm capsule, a push rod, a first terminal, a second terminal, a reed seat, a movable contact piece, a static contact piece, a fine adjustment mechanism and an elastic piece, wherein the reed seat is arranged in the shell; the diaphragm is arranged on the elastic sheet, the elastic sheet always generates power for pushing the diaphragm upwards, when the diaphragm expands, the elastic sheet overcomes the elasticity of the elastic sheet, the elastic sheet bends downwards, the diaphragm moves downwards simultaneously, when the diaphragm contracts, the elastic sheet resets, the elastic sheet pushes the diaphragm to move upwards, the elastic sheet is arranged to help limit the movement direction of the diaphragm, and the elastic sheet always has pressure on the diaphragm, so that the diaphragm is not easy to run, and the stability of the liquid expansion type temperature controller is effectively enhanced.
Description
Technical Field
The utility model relates to a liquid expansion type temperature controller.
Background
The liquid expansion temperature controller (Liquid Expansion Thermostat) is a temperature controller based on the thermal expansion principle and is commonly used in industrial automation and heating ventilation air conditioning systems.
Liquid expanding temperature controller working principle: when the temperature of the controlled object changes, the working medium (liquid) in the temperature sensing part of the temperature controller generates a corresponding physical phenomenon (volume change) of thermal expansion and contraction, and the bellows communicated with the temperature sensing part generates expansion or contraction.
When the temperature reaches a set value, the bellows expands to drive the push rod device to move, the push rod device applies pressure until the movable contact piece and the static contact piece are separated, and the purpose of power failure is achieved, otherwise, when the temperature is reduced, the bellows contracts to drive the push rod device to withdraw, the movable contact piece loses pressure, and the movable contact piece and the static contact piece are combined again to be electrified.
The temperature control device has the advantages of simple structure, high reliability, high response speed and the like, and is widely applied to various temperature control systems.
In the prior art, the temperature change causes the expansion or contraction of the bellows, and when the temperature controller is used for a long time, the bellows is in the expansion and contraction process, the bellows is contained to deviate, the precision of the liquid expansion temperature controller is reduced, and the service life of the liquid expansion temperature controller is prolonged.
Disclosure of Invention
The utility model aims to provide a liquid expansion type temperature controller for preventing deflection in the expansion or contraction process of a diaphragm capsule.
The purpose of the utility model is realized in the following way:
the liquid expansion type temperature controller comprises a shell, a liquid temperature sensing element, a diaphragm capsule, a push rod, a first terminal, a second terminal, a reed seat, a movable contact piece, a static contact piece, a fine adjustment mechanism and an elastic piece, wherein the reed seat is arranged in the shell;
the static contact is arranged in the shell, the second terminal is arranged in the shell, one end of the second terminal is connected with the static contact, and the other end of the second terminal extends out of the shell;
the elastic sheet is provided with a mounting opening, the elastic sheet is fixed in the shell, the diaphragm capsule is arranged on the elastic sheet, the elastic force of the elastic sheet generates upward thrust on the diaphragm capsule, the push rod is arranged in the shell, the upper end of the push rod passes through the mounting opening to face the diaphragm capsule, the lower end of the push rod faces the movable contact piece, and the fine adjustment mechanism is arranged in the shell and is positioned on the diaphragm capsule;
the liquid temperature sensing element is connected with the diaphragm capsule, the temperature sensing part of the liquid temperature sensing element extends out of the shell, when the temperature sensing part monitors that the temperature of a controlled object changes, the diaphragm capsule expands or contracts along with the temperature change, the diaphragm capsule pushes the push rod to move downwards when expanding, the movable contact piece is separated from the static contact piece, and when contracting, the push rod is pushed to return to an initial position, and the movable contact piece is contacted with the static contact piece.
The diaphragm is arranged on the elastic sheet, the elastic sheet always generates power for pushing the diaphragm upwards, when the diaphragm expands, the elastic sheet overcomes the elasticity of the elastic sheet, the elastic sheet bends downwards, the diaphragm moves downwards simultaneously, when the diaphragm contracts, the elastic sheet resets, the elastic sheet pushes the diaphragm to move upwards, the elastic sheet is arranged to help limit the movement direction of the diaphragm, and the elastic sheet always has pressure on the diaphragm, so that the diaphragm is not easy to run, and the stability of the liquid expansion type temperature controller is effectively enhanced.
The aim of the utility model can be also solved by adopting the following technical measures:
further, still include the bolt, the casing includes support and apron, support one end is provided with the inserted sheet, and the support other end is provided with the bolt hole, apron one end is provided with the socket, the through-hole has been opened to the apron other end, the inserted sheet inserts in the corresponding socket and chucking, the bolt passes the socket locking in the bolt hole to make support and apron connection form frame-like casing. The bolt, the cover plate and the bracket are spliced into the frame-shaped shell, and the frame structure is beneficial to enhancing the stability and the compression resistance, so that the deformation is not easy to be generated by external force, and the service life of the liquid expansion type temperature controller is prolonged.
Further, the cover plate downwards extends out of the pressing plate, and the pressing plate is provided with a notch. The capillary tube is bent out through the notch in a winding manner, so that the fixing strength of the capillary tube is effectively enhanced, and the temperature control temperature of the liquid expansion type temperature controller cannot be influenced by pulling the capillary tube during production or use of the liquid expansion type temperature controller.
Further, the pressing plate is provided with a bending hook. The capillary tube is wound and bent out through the notch, then sleeved into the bent hook, and then clamped, so that the fixing strength of the capillary tube is effectively enhanced, and the temperature control temperature of the liquid expansion type temperature controller cannot be influenced by pulling the capillary tube when the liquid expansion type temperature controller is produced or used.
Further, the second terminal and the stationary contact are integrally formed. The integrated forming reduces production parts, improves production efficiency, and can reduce resistance and heat productivity when being electrified due to the integration of the two parts, thereby improving product quality.
Further, still include bolt, porcelain tube, first porcelain ring, second porcelain ring, third porcelain ring and fourth porcelain ring, the bolt is arranged in the casing, the porcelain tube cover is put on the bolt, first porcelain ring, second porcelain ring and third porcelain ring cover are put on the porcelain tube in proper order, the fourth porcelain ring cover is put on the bolt, first terminal and reed seat cover are put on the porcelain tube and are located between first porcelain ring and the second porcelain ring, the second terminal cover is put on the porcelain tube and is located between second porcelain ring and the third porcelain ring, the shell fragment cover is put on the bolt and is located between third porcelain ring and the fourth porcelain ring.
Further, the liquid temperature sensing element comprises a temperature sensing barrel, a capillary tube and a sheath tube, wherein the sheath tube is sleeved on the capillary tube, one end of the capillary tube is communicated with the diaphragm capsule, and the other end of the capillary tube penetrates through the notch, extends out of the shell, is wound at the bent hook and outwards extends to be connected with the temperature sensing barrel.
Further, the bracket is an L-shaped bracket.
The beneficial effects of the utility model are as follows:
according to the utility model, the diaphragm is arranged on the elastic sheet, the elastic sheet always generates a power for pushing the diaphragm upwards, when the diaphragm expands, the elastic sheet overcomes the elastic force of the elastic sheet, the elastic sheet bends downwards, meanwhile, the diaphragm moves downwards, when the diaphragm contracts, the elastic sheet resets, the elastic force of the elastic sheet pushes the diaphragm to move upwards, the elastic sheet is arranged to help limit the movement direction of the diaphragm, and the elastic sheet always has a pressure on the diaphragm, so that the diaphragm is not easy to run, and the stability of the liquid expansion type temperature controller is effectively enhanced.
According to the utility model, the capillary tube is wound and bent out through the notch, then sleeved into the bent hook, and then the hook is clamped, so that the fixing strength of the capillary tube is effectively enhanced, and the temperature control temperature of the liquid expansion type temperature controller is not influenced by pulling the capillary tube during production or use of the liquid expansion type temperature controller.
According to the utility model, the production components are reduced by integral molding, the production efficiency is improved, and the resistance can be reduced by integrating the two components, so that the heating value during electrifying is reduced, and the product quality is improved.
According to the utility model, the bolts, the cover plate and the bracket are spliced into the frame-shaped shell, and the frame structure is beneficial to enhancing the stability and the compression resistance, so that the deformation caused by external force is not easy to happen, and the service life of the liquid expansion type temperature controller is prolonged.
Drawings
FIG. 1 is a schematic diagram of a liquid expansion thermostat.
FIG. 2 is another angular schematic view of the liquid expansion thermostat.
Fig. 3 is a front view of the liquid expansion thermostat.
Fig. 4 is a schematic diagram showing the separation of the housing of the liquid expansion thermostat.
Fig. 5 is a schematic diagram showing the separation of the cover plate (bracket and cover) of the liquid expansion type temperature controller.
Fig. 6 is an exploded view of the liquid expansion thermostat.
Detailed Description
The utility model is further described below with reference to the accompanying drawings and examples:
the embodiment, referring to fig. 1 to 6, shows a liquid expansion type temperature controller, which comprises a housing 1, a liquid temperature sensing element 2, a diaphragm capsule 3, a push rod 4, a first terminal 5, a second terminal 6, a reed seat 7, a movable contact piece 8, a static contact piece 9, a fine adjustment mechanism 100 and a spring piece 10, wherein the reed seat 7 is arranged in the housing 1, the movable contact piece 8 is connected with the reed seat 7 in the housing 1, the first terminal 5 is arranged in the housing 1, one end of the first terminal 5 is connected with the reed seat 7, and the other end of the first terminal 5 extends out of the housing 1;
the static contact 9 is arranged in the shell 1, the second terminal 6 is arranged in the shell 1, one end of the second terminal 6 is connected with the static contact 9, and the other end of the second terminal 6 extends out of the shell 1;
the elastic sheet 10 is provided with a mounting opening 101, the elastic sheet 10 is fixed in the shell 1, the diaphragm capsule 3 is arranged on the elastic sheet 10, the elastic force of the elastic sheet 10 generates upward thrust on the diaphragm capsule 3, the push rod 4 is arranged in the shell 1, the upper end of the push rod 4 passes through the mounting opening 101 and faces the diaphragm capsule 3, the lower end of the push rod 4 faces the movable contact 8, and the fine adjustment mechanism 100 is arranged in the shell 1 and is positioned on the diaphragm capsule 3;
the liquid temperature sensing element 2 is connected with the diaphragm capsule 3, the temperature sensing part of the liquid temperature sensing element 2 stretches out of the shell 1, when the temperature sensing part detects that the temperature of a controlled object changes, the diaphragm capsule 3 expands or contracts along with the temperature change, the diaphragm capsule 3 pushes the push rod 4 to move downwards when expanding, the movable contact piece 8 is separated from the static contact piece 9, the diaphragm capsule 3 contracts, the push rod 4 is pushed to restore to the initial position, and the movable contact piece 8 is contacted with the static contact piece 9.
Further, the shell 1 further comprises a bolt 200, the shell comprises a support 15 and a cover plate 12, the support 15 is an L-shaped support, an inserting piece 151 is arranged at one end of the support 15, a bolt hole 152 is arranged at the other end of the support 15, a socket 121 is arranged at one end of the cover plate 12, and a through hole 122 is formed at the other end of the cover plate 12.
Inserting the tab 151 into the corresponding socket 121, the user twists the tab 151 causing the tab 151 to deform to grip the socket 121, and then locks the bolt 200 into the bolt hole 152 through the socket 121 to connect the bracket 15 and the cover 12 to form a frame-like housing. The bolts 200, the cover plate 12 and the bracket 15 are spliced into a frame-shaped shell, and the frame structure is beneficial to enhancing stability and pressure resistance, so that the deformation is not easy to be caused by external force, and the service life of the liquid expansion type temperature controller is prolonged.
Further, the cover plate 12 extends downwards to form a pressing plate 13, and the pressing plate 13 is provided with a notch 14.
Further, the pressing plate 13 is provided with a bent hook 11.
Further, the second terminal 6 and the stationary contact 9 are integrally formed.
Further, the ceramic tube 300 is sleeved on the bolt 200, the first ceramic ring 400, the second ceramic ring 500 and the third ceramic ring 600 are sequentially sleeved on the ceramic tube 300, the fourth ceramic ring 700 is sleeved on the bolt 200, the first terminal 5 and the reed seat 7 are sleeved on the ceramic tube 300 and are positioned between the first ceramic ring 400 and the second ceramic ring 500, the second terminal 6 is sleeved on the ceramic tube 300 and is positioned between the second ceramic ring 500 and the third ceramic ring 600, and the elastic sheet 10 is sleeved on the bolt 200 and is positioned between the third ceramic ring 600 and the fourth ceramic ring 700.
Further, the liquid temperature sensing element 2 comprises a temperature sensing barrel 21, a capillary tube 22 and a sheath tube 23, wherein the sheath tube 23 is sleeved on the capillary tube 22, one end of the capillary tube 22 is communicated with the diaphragm capsule 3, and the other end of the capillary tube 22 penetrates through the notch 14 to extend out of the shell 1, is wound at the bent hook 11 and extends outwards to be connected with the temperature sensing barrel 21.
One end of the capillary tube 22 is connected with the diaphragm capsule 3, the other end of the capillary tube 22 is coiled in the shell 1 and then passes through the notch 14 to extend out of the shell 1, then the capillary tube 22 is wound at the bent hook 11 and extends towards the position where the temperature sensing tube 21 is connected, and then the hook is clamped, so that the fixing strength of the capillary tube is effectively enhanced, and the temperature control temperature of the liquid expansion type temperature controller cannot be influenced by pulling the capillary tube 22 during production or use.
Working principle:
when the temperature of the controlled object rises to a set value, the working medium (liquid) in the temperature sensing cylinder 21 generates a corresponding physical phenomenon (volume change) of thermal expansion and cold contraction, so that the diaphragm capsule 3 communicated with the temperature sensing cylinder 21 expands, the diaphragm capsule 3 expands to drive the push rod 4 to move, the push rod 4 applies pressure until the movable contact piece 8 deforms, and the movable contact piece 8 and the static contact piece 9 are separated, thereby achieving the purpose of power failure.
When the temperature of the controlled object is reduced, the working medium (liquid) in the temperature sensing barrel 21 generates a corresponding physical phenomenon (volume change) of thermal expansion and contraction, so that the diaphragm capsule 3 communicated with the temperature sensing barrel 21 contracts, the diaphragm capsule 3 contracts to drive the push rod 4 to withdraw, the movable contact 8 loses pressure, the movable contact 8 is restored to an initial state, and the movable contact 8 and the static contact 9 are combined again for electrifying.
Because the diaphragm capsule 3 is arranged on the elastic sheet 10, the elastic sheet 10 always generates a power for pushing the diaphragm capsule 3 upwards, when the diaphragm capsule 3 expands, the elastic sheet 10 overcomes the elasticity of the elastic sheet 10, the diaphragm capsule 3 moves downwards, when the diaphragm contracts, the elastic sheet 10 resets, the elastic sheet 10 pushes the diaphragm capsule 3 to move upwards, the elastic sheet 10 is arranged to help limit the movement direction of the diaphragm capsule 3, and the elastic sheet 10 always has a pressure on the diaphragm capsule 3, so that the diaphragm capsule 3 is not easy to run, and the stability of the liquid expansion type temperature controller is effectively enhanced.
Claims (8)
1. The utility model provides a liquid formula temperature controller that rises, includes casing, liquid temperature sensing element, bellows, push rod, first terminal, second terminal, reed seat, movable contact piece, static contact piece, fine setting mechanism and shell fragment, its characterized in that: the movable contact piece is arranged in the shell and connected with the reed seat, the first terminal is arranged in the shell, one end of the first terminal is connected with the reed seat, and the other end of the first terminal extends out of the shell;
the static contact is arranged in the shell, the second terminal is arranged in the shell, one end of the second terminal is connected with the static contact, and the other end of the second terminal extends out of the shell;
the elastic sheet is provided with a mounting opening, the elastic sheet is fixed in the shell, the diaphragm capsule is arranged on the elastic sheet, the elastic force of the elastic sheet generates upward thrust on the diaphragm capsule, the push rod is arranged in the shell, the upper end of the push rod passes through the mounting opening to face the diaphragm capsule, the lower end of the push rod faces the movable contact piece, and the fine adjustment mechanism is arranged in the shell and is positioned on the diaphragm capsule;
the liquid temperature sensing element is connected with the diaphragm capsule, the temperature sensing part of the liquid temperature sensing element extends out of the shell, when the temperature sensing part monitors that the temperature of a controlled object changes, the diaphragm capsule expands or contracts along with the temperature change, the diaphragm capsule pushes the push rod to move downwards when expanding, the movable contact piece is separated from the static contact piece, and when contracting, the push rod is pushed to return to an initial position, and the movable contact piece is contacted with the static contact piece.
2. The liquid expansion thermostat of claim 1, wherein: still include the bolt, the casing includes support and apron, support one end is provided with the inserted sheet, and the support other end is provided with the bolt hole, apron one end is provided with the socket, the through-hole has been opened to the apron other end, the inserted sheet inserts in the corresponding socket and chucking, the bolt passes the socket locking in the bolt hole to make support and apron connection form frame-like casing.
3. The liquid expansion thermostat of claim 2, wherein: the cover plate downwards extends out of the pressing plate, and the pressing plate is provided with a notch.
4. A liquid expansion thermostat according to claim 3 wherein: the pressing plate is provided with a bending hook.
5. The liquid expansion thermostat of claim 1, wherein: and the second terminal and the static contact piece are integrally formed.
6. The liquid expansion thermostat of claim 1, wherein: still include porcelain tube, first porcelain ring, second porcelain ring, third porcelain ring and fourth porcelain ring, the porcelain tube cover is put on the bolt, first porcelain ring, second porcelain ring and third porcelain ring cover are put on the porcelain tube in proper order, the fourth porcelain ring cover is put on the bolt, first terminal and reed seat cover are put on the porcelain tube and are located between first porcelain ring and the second porcelain ring, the second terminal cover is put on the porcelain tube and is located between second porcelain ring and the third porcelain ring, the shell fragment cover is put on the bolt and is located between third porcelain ring and the fourth porcelain ring.
7. The liquid expansion thermostat of claim 4, wherein: the liquid temperature sensing element comprises a temperature sensing barrel, a capillary tube and a sheath tube, wherein the sheath tube is sleeved on the capillary tube, one end of the capillary tube is communicated with the diaphragm capsule, and the other end of the capillary tube penetrates through the notch, extends out of the shell, is wound at the bent hook and extends outwards to be connected with the temperature sensing barrel.
8. The liquid expansion thermostat of claim 2, wherein: the bracket is an L-shaped bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320457589.2U CN219370897U (en) | 2023-03-09 | 2023-03-09 | Liquid expansion type temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320457589.2U CN219370897U (en) | 2023-03-09 | 2023-03-09 | Liquid expansion type temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219370897U true CN219370897U (en) | 2023-07-18 |
Family
ID=87138228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320457589.2U Active CN219370897U (en) | 2023-03-09 | 2023-03-09 | Liquid expansion type temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219370897U (en) |
-
2023
- 2023-03-09 CN CN202320457589.2U patent/CN219370897U/en active Active
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