CN219370895U - Liquid expansion type temperature controller - Google Patents
Liquid expansion type temperature controller Download PDFInfo
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- CN219370895U CN219370895U CN202320495253.5U CN202320495253U CN219370895U CN 219370895 U CN219370895 U CN 219370895U CN 202320495253 U CN202320495253 U CN 202320495253U CN 219370895 U CN219370895 U CN 219370895U
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- movable contact
- spring plate
- shell
- diaphragm capsule
- push rod
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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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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 movable contact combined spring piece, a static contact spring piece and a fine adjustment mechanism, wherein the movable contact combined spring piece is arranged in the shell; the static contact spring plate is arranged in the shell, one end of the second terminal stretches into the shell to be connected with the static contact spring plate, and the other end of the second terminal stretches out of the shell; the movable contact combined spring plate is provided with a positioning hole, the diaphragm capsule is arranged in the shell and is positioned above the movable contact combined spring plate, the push rod is arranged in the shell and is positioned between the diaphragm capsule and the movable contact combined spring plate, the upper end of the push rod is abutted against the diaphragm capsule, the lower end of the push rod is abutted against the positioning hole, and the fine adjustment mechanism is arranged in the shell and is positioned on the diaphragm capsule; 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 spring piece are separated, 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 spring 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, when the temperature controller is used for a long time, the bellows expands or contracts, the bellows is contained in the expansion and contraction process, the bellows deflects, the elasticity of the movable contact piece and the static contact spring piece is poor, the movable contact piece and the static contact spring piece are separated, the action is slow, the stability is reduced, and therefore the precision and the service life of the liquid expansion type temperature controller are reduced.
Disclosure of Invention
The utility model aims to provide a liquid expansion type temperature controller with sensitive contact on-off and strong stability.
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 movable contact combined spring piece, a static contact spring piece and a fine adjustment mechanism, wherein the movable contact combined spring piece is arranged in the shell, one end of the first terminal extends into the shell to be connected with the movable contact combined spring piece, and the other end of the first terminal extends out of the shell;
the static contact spring plate is arranged in the shell, one end of the second terminal stretches into the shell to be connected with the static contact spring plate, and the other end of the second terminal stretches out of the shell;
the movable contact combined spring plate is provided with a positioning hole, the diaphragm capsule is arranged in the shell and is positioned above the movable contact combined spring plate, the push rod is arranged in the shell and is positioned between the diaphragm capsule and the movable contact combined spring plate, the upper end of the push rod is abutted against the diaphragm capsule, the lower end of the push rod is abutted against the positioning hole, 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 combined spring sheet contacts with the static contact spring sheet, and the diaphragm capsule pushes the push rod to restore to the initial position when contracting, so that the movable contact combined spring sheet and the static contact spring sheet are separated.
The movable contact combined elastic sheet is formed by combining at least two elastic sheets, the elasticity of the movable contact combined elastic sheet is better, the service life is longer, the stability and consistency of the deformation action position are improved, in addition, the push rod is inserted into the positioning hole of the movable contact combined elastic sheet, the position of the push rod is fixed, the push rod is prevented from shifting, 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, the movable contact combined spring plate further comprises a supporting block, the supporting block is fixed at the bottom of the shell, one end of the movable contact combined spring plate is fixed in the shell, the other end of the movable contact combined spring plate is abutted against the supporting block, and the supporting block upwards supports the movable contact combined spring plate.
The deformation position of the movable contact combined spring piece is stable and consistent under the bearing action of the supporting block in the deformation process of the movable contact combined spring piece, so that the stability of the liquid expansion type temperature controller is better.
Further, the movable contact combined spring plate comprises a movable contact long spring plate and a movable contact short spring plate, a first cavity is formed in the middle of the movable contact long spring plate in a hollowed mode, a first spring plate is arranged at the position, corresponding to the first cavity, of the movable contact long spring plate, the first spring plate is provided with the positioning hole, a second cavity is formed in the middle of the movable contact short spring plate in a hollowed mode, a second spring plate is arranged at the position, corresponding to the second cavity, of the movable contact short spring plate, and the movable contact long spring plate and the movable contact short spring plate are combined together to form the movable contact combined spring plate, and the first spring plate is located above the second spring plate.
Further, the movable contact long elastic sheet is provided with a first supporting hole, the movable contact short elastic sheet is provided with a second supporting hole, and the upper end of the supporting block sequentially penetrates through the first supporting hole and the second supporting hole.
Further, the movable contact short spring plate is provided with a movable contact, the upper end of the movable contact abuts against the movable contact long spring plate, the lower end of the movable contact faces the static contact spring plate, and the static contact spring plate is provided with a static contact corresponding to the movable contact position.
When the push rod moves downwards to push the first elastic piece to deform downwards, the first elastic piece is made to press the second elastic piece downwards, the second elastic piece is made to move downwards to drive the movable contact short elastic piece to deform downwards, finally, the movable contact of the movable contact short elastic piece and the stationary contact of the stationary contact elastic piece are combined and electrified, when the push rod moves upwards to reset, the first elastic piece deforms upwards to restore to an initial state, the second elastic piece deforms upwards, the second elastic piece drives the movable contact short elastic piece to restore to the initial state upwards until the upper end of the movable contact is abutted against the movable contact long elastic piece, the upward movement position of the movable contact is limited, and therefore, the upward movement and downward movement strokes of the movable contact are consistent when the liquid expansion type temperature controller works, and the stability of the liquid expansion type temperature controller is improved.
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 is provided with a notch, and a bending hook is arranged at the notch of the cover plate. The capillary tube is wound through the notch to be bent, so that the fixing strength of the capillary tube is effectively enhanced, the capillary tube is not pulled to influence the temperature control temperature of the liquid expansion type temperature controller during production or use, the capillary tube is wound through the notch to be bent and then sleeved into the bending hook, and then the hook is clamped, so that the fixing strength of the capillary tube is effectively enhanced, and the capillary tube is not pulled to influence the temperature control temperature of the liquid expansion type temperature controller during production or use.
Further, still include porcelain tube, first porcelain ring, second porcelain ring and third 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, second terminal and static contact shell fragment cover are put on the porcelain tube and are located between first porcelain ring and the second porcelain ring, first terminal and movable contact combination shell fragment cover are put on the porcelain tube and are located between second porcelain ring and the third 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, stretches out of the cover plate, winds around the bent hook and stretches out outwards to be connected with the temperature sensing barrel.
Further, the air conditioner further comprises a plastic shell, wherein ventilation holes are formed in the plastic shell at intervals, and the plastic shell is sleeved on the shell. The plastic shell is sleeved on the shell, so that the dustproof effect of the liquid expansion type temperature controller is improved, and ventilation holes are formed in the plastic shell at intervals, so that the heat dissipation of the liquid expansion type temperature controller is facilitated.
The beneficial effects of the utility model are as follows:
according to the utility model, at least two elastic sheets are combined to form the movable contact combined elastic sheet, the elasticity of the movable contact combined elastic sheet is better, the service life is longer, the stability and consistency of the deformation action position are improved, and the push rod is inserted into the positioning hole of the movable contact combined elastic sheet to fix the position of the push rod, so that the push rod is prevented from shifting, and the stability of the liquid expansion type temperature controller is effectively enhanced.
According to the utility model, the deformation positions of the movable contact combined spring plates are stable and consistent in the deformation process of the movable contact combined spring plates under the bearing action of the supporting blocks, so that the stability of the liquid expansion type temperature controller is better.
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.
According to the utility model, the capillary tube is bent out by passing through the notch, so that the fixing strength of the capillary tube is effectively enhanced, the temperature control temperature of the liquid expansion type temperature controller is not influenced by pulling the capillary tube during production or use, and the capillary tube is bent out by passing through the notch and 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.
According to the utility model, the plastic shell is sleeved on the shell, so that the dustproof effect of the liquid expansion type temperature controller is improved, and the plastic shell is provided with the ventilation holes at intervals, thereby being beneficial to heat dissipation of the liquid expansion type temperature controller.
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 cross-sectional view of the liquid expansion thermostat.
Fig. 4 is another angular cross-sectional view of the liquid expansion thermostat.
Fig. 5 is an assembly view of the liquid expansion thermostat (separated state of the plastic housing).
Fig. 6 is an exploded view of the liquid expansion thermostat.
Fig. 7 is a front view of the liquid expansion thermostat (with the plastic housing removed).
Fig. 8 is a front view of the movable contact combined spring.
Fig. 9 is an exploded view of the movable contact assembly spring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings and examples:
the embodiment, referring to fig. 1 to 9, is a liquid expansion type temperature controller, which comprises a housing 1, a liquid temperature sensing element 2, a bellows 3, a push rod 4, a first terminal 5, a second terminal 6, a movable contact combined spring piece 7, a static contact spring piece 8 and a fine adjustment mechanism 200, wherein the movable contact combined spring piece 7 is arranged in the housing 1, one end of the first terminal 5 extends into the housing 1 to be connected with the movable contact combined spring piece 7, and the other end of the first terminal 5 extends out of the housing 1;
the static contact spring piece 8 is arranged in the shell 1, one end of the second terminal 6 extends into the shell 1 to be connected with the static contact spring piece 8, and the other end of the second terminal 6 extends out of the shell 1;
the movable contact combined spring plate 7 is provided with a positioning hole 71, the diaphragm capsule 3 is arranged in the shell 1 and is positioned above the movable contact combined spring plate 7, the push rod 4 is arranged in the shell 1 and is positioned between the diaphragm capsule 3 and the movable contact combined spring plate 7, the upper end of the push rod 4 is abutted against the diaphragm capsule 3, the lower end of the push rod 4 is abutted against the positioning hole 71, and the fine adjustment mechanism 200 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 combined spring sheet 7 is contacted with the static contact spring sheet 8, and the diaphragm capsule 3 pushes the push rod 4 to restore to the initial position when contracting, so that the movable contact combined spring sheet 7 is separated from the static contact spring sheet 8.
Further, the portable electronic device further comprises a supporting block 100, the supporting block 100 is fixed at the bottom of the shell 1, one end of the movable contact combined spring 7 is fixed in the shell 1, the other end of the movable contact combined spring 7 is abutted against the supporting block 100, the supporting block 100 supports the movable contact combined spring 7 upwards, and in the embodiment, the supporting block 100 is made of rice-grain-shaped ceramics.
Further, the movable contact combined spring 7 includes a movable contact long spring 72 and a movable contact short spring 73, a first cavity 721 is formed in the middle of the movable contact long spring 72, a first spring 722 is disposed at a position corresponding to the first cavity 721 of the movable contact long spring 72, the first spring 722 is provided with the positioning hole 71, a second cavity 731 is formed in the middle of the movable contact short spring 73, a second spring 732 is disposed at a position corresponding to the second cavity 731 of the movable contact short spring 73, and the movable contact long spring 72 and the movable contact short spring 73 are combined together to form the movable contact combined spring 7, and the first spring 722 is disposed above the second spring 732.
Further, the movable contact long spring plate 72 is provided with a first supporting hole 723, the movable contact short spring plate 73 is provided with a second supporting hole 733, and the upper end of the supporting block 100 sequentially passes through the first supporting hole 723 and the second supporting hole 733.
Further, the movable contact short spring 73 is provided with a movable contact 734, the upper end of the movable contact 734 abuts against the movable contact long spring 72, the lower end of the movable contact 734 faces the static contact spring 8, and the static contact spring 8 is provided with a static contact 81 corresponding to the position of the movable contact 734.
Further, the shell 1 comprises a bracket 11 and a cover plate 12, wherein one end of the bracket 11 is provided with an inserting sheet 111, the other end of the bracket 11 is provided with a bolt hole 112, one end of the cover plate 12 is provided with a socket 121, the other end of the cover plate 12 is provided with a through hole, the inserting sheet 111 is inserted into the corresponding socket 121 and clamped, and the bolt 9 penetrates through the socket 121 to be locked in the bolt hole 112, so that the bracket 11 and the cover plate 12 are connected to form the frame-shaped shell 1.
Further, the cover 12 is provided with a notch 122, and a bent hook 123 is disposed at the notch 122 of the cover 12.
Further, the electric power socket further comprises a porcelain tube 91, a first porcelain ring 92, a second porcelain ring 93 and a third porcelain ring 94, wherein the porcelain tube 91 is sleeved on the bolt 9, the first porcelain ring 92, the second porcelain ring 93 and the third porcelain ring 94 are sequentially sleeved on the porcelain tube 91, the second terminal 6 and the static contact elastic sheet 8 are sleeved on the porcelain tube 91 and are positioned between the first porcelain ring 92 and the second porcelain ring 93, and the first terminal 5 and the movable contact combined elastic sheet 7 are sleeved on the porcelain tube 91 and are positioned between the second porcelain ring 93 and the third porcelain ring 94.
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 122, extends out of the cover plate, is wound on the bent hook 123 and extends outwards to be connected with the temperature sensing barrel 21.
Further, the plastic shell 10 is further included, the ventilation holes 101 are formed in the plastic shell 10 at intervals, and the plastic shell 10 is sleeved on the shell 1.
Further, the second terminal 6 and the static contact spring piece 8 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.
One end of the capillary tube 22 is connected with the diaphragm capsule 3, the other end of the capillary tube 22 passes through the notch 122 and extends out of the cover plate 12, then the capillary tube 22 is wound at the bent hook 123 and extends out of the temperature sensing cylinder 21, and then the bent hook 123 is clamped, so that the fixing strength of the capillary tube 22 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 the set value, the working medium (liquid) in the temperature sensing barrel 21 generates a corresponding physical phenomenon (volume change) of thermal expansion and cold contraction, so that the bellows 3 communicated with the temperature sensing barrel 21 expands, the bellows 3 expands to drive the push rod 4 to move, and the push rod 4 applies pressure until the movable contact combined spring 7 deforms, and the movable contact 734 of the movable contact short spring 73 and the stationary contact 81 of the stationary contact spring 8 are combined and electrified.
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 bellows 3 communicated with the temperature sensing barrel 21 contracts, the bellows 3 contracts to drive the push rod 4 to withdraw, the movable contact combined spring plate 7 loses pressure, the movable contact short spring plate 73 is restored to an initial state, and the movable contact 734 of the movable contact short spring plate 73 is separated from the static contact 81 of the static contact spring plate 8, thereby achieving the purpose of power failure.
The movable contact combined spring 7 is formed by combining the movable contact long spring 72 and the movable contact short spring 73, and the push rod 4 is inserted into the positioning hole 71 of the movable contact long spring 72, so that the push rod 4 is fixed and not deviated, and the movable contact combined spring 7 has the function of positioning the push rod 4.
Then, under the bearing action of the supporting block 100, the movable contact long elastic piece 72 and the movable contact short elastic piece 73 are stable and consistent in deformation positions of the movable contact long elastic piece 72 and the movable contact short elastic piece 73 in the deformation process of the movable contact long elastic piece 72 and the movable contact short elastic piece 73, so that the stability of the liquid expansion type temperature controller is better.
And when the push rod 4 moves downwards to push the first elastic sheet 722 to deform downwards, the first elastic sheet 722 presses the second elastic sheet 732 downwards, so that the second elastic sheet 732 moves downwards to drive the movable contact short elastic sheet 73 to deform downwards, finally, the movable contact 734 of the movable contact short elastic sheet 73 and the stationary contact 81 of the stationary contact elastic sheet 8 are combined and electrified, when the push rod 4 moves upwards to reset, the first elastic sheet 722 deforms upwards to restore to the initial state, the second elastic sheet 732 deforms upwards, the second elastic sheet 732 drives the movable contact short elastic sheet 73 to restore to the initial state upwards until the upper end of the movable contact 734 abuts against the movable contact long elastic sheet 72, and the upward movement position of the movable contact 734 is limited, so that the upward movement and the downward movement strokes of the movable contact 734 are consistent when the hydraulic expansion type temperature controller works, and the stability of the hydraulic expansion type temperature controller is improved.
Claims (10)
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, the movable contact combination shell fragment, the static contact shell fragment and the fine setting mechanism that two piece at least shell fragments are constituteed, its characterized in that: the movable contact combined spring plate is arranged in the shell, one end of the first terminal stretches into the shell to be connected with the movable contact combined spring plate, and the other end of the first terminal stretches out of the shell;
the static contact spring plate is arranged in the shell, one end of the second terminal stretches into the shell to be connected with the static contact spring plate, and the other end of the second terminal stretches out of the shell;
the movable contact combined spring plate is provided with a positioning hole, the diaphragm capsule is arranged in the shell and is positioned above the movable contact combined spring plate, the push rod is arranged in the shell and is positioned between the diaphragm capsule and the movable contact combined spring plate, the upper end of the push rod is abutted against the diaphragm capsule, the lower end of the push rod is abutted against the positioning hole, 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 combined spring sheet contacts with the static contact spring sheet, and the diaphragm capsule pushes the push rod to restore to the initial position when contracting, so that the movable contact combined spring sheet and the static contact spring sheet are separated.
2. The liquid expansion thermostat of claim 1, wherein: the movable contact combined spring piece is characterized by further comprising a supporting block, wherein the supporting block is fixed at the bottom of the shell, one end of the movable contact combined spring piece is fixed in the shell, the other end of the movable contact combined spring piece is propped against the supporting block, and the supporting block upwards supports the movable contact combined spring piece.
3. The liquid expansion thermostat of claim 2, wherein: the movable contact combined spring plate comprises a movable contact long spring plate and a movable contact short spring plate, a first cavity is formed in the middle of the movable contact long spring plate in a hollowed mode, a first spring plate is arranged at the position, corresponding to the first cavity, of the movable contact long spring plate, the first spring plate is provided with the positioning hole, a second cavity is formed in the middle of the movable contact short spring plate in a hollowed mode, a second spring plate is arranged at the position, corresponding to the second cavity, of the movable contact short spring plate, and the movable contact long spring plate and the movable contact short spring plate are combined together to form the movable contact combined spring plate, and the first spring plate is located above the second spring plate.
4. A liquid expansion thermostat according to claim 3 wherein: the movable contact long elastic sheet is provided with a first supporting hole, the movable contact short elastic sheet is provided with a second supporting hole, and the upper end of the supporting block sequentially penetrates through the first supporting hole and the second supporting hole.
5. A liquid expansion thermostat according to claim 3 wherein: the movable contact short spring plate is provided with a movable contact, the upper end of the movable contact abuts against the movable contact long spring plate, the lower end of the movable contact faces towards the static contact spring plate, and the static contact spring plate is provided with a static contact corresponding to the movable contact position.
6. A liquid expansion thermostat according to claim 3 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.
7. The liquid expansion thermostat of claim 6, wherein: the cover plate is provided with a notch, and a bending hook is arranged at the notch of the cover plate.
8. The liquid expansion thermostat of claim 1, wherein: still include porcelain tube, first porcelain ring, second porcelain ring and third 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, second terminal and static contact shell fragment cover are put on the porcelain tube and are located between first porcelain ring and the second porcelain ring, first terminal and movable contact combination shell fragment cover are put on the porcelain tube and are located between second porcelain ring and the third porcelain ring.
9. The liquid expansion thermostat of claim 1, 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, stretches out of the cover plate, winds around the bent hook and stretches out outwards to be connected with the temperature sensing barrel.
10. The liquid expansion thermostat of claim 1, wherein: the plastic shell is provided with ventilation holes at intervals, and the plastic shell is sleeved on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320495253.5U CN219370895U (en) | 2023-03-14 | 2023-03-14 | Liquid expansion type temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320495253.5U CN219370895U (en) | 2023-03-14 | 2023-03-14 | Liquid expansion type temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219370895U true CN219370895U (en) | 2023-07-18 |
Family
ID=87139388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320495253.5U Active CN219370895U (en) | 2023-03-14 | 2023-03-14 | Liquid expansion type temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219370895U (en) |
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2023
- 2023-03-14 CN CN202320495253.5U patent/CN219370895U/en active Active
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