CN221008851U - Liquid expansion type temperature controller - Google Patents
Liquid expansion type temperature controller Download PDFInfo
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- CN221008851U CN221008851U CN202323048939.9U CN202323048939U CN221008851U CN 221008851 U CN221008851 U CN 221008851U CN 202323048939 U CN202323048939 U CN 202323048939U CN 221008851 U CN221008851 U CN 221008851U
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- spring piece
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- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 47
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 25
- 235000009566 rice Nutrition 0.000 claims abstract description 25
- 239000002775 capsule Substances 0.000 claims abstract description 20
- 241000209094 Oryza Species 0.000 claims description 24
- 238000005452 bending Methods 0.000 claims description 23
- 239000012634 fragment Substances 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 description 46
- 230000009471 action Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Temperature-Responsive Valves (AREA)
Abstract
The utility model relates to a liquid expansion type temperature controller which comprises a frame, a regulator, a diaphragm capsule, a liquid temperature sensing element, a spring piece, porcelain rice, a spring piece component, a push rod, a first terminal and a second terminal, wherein the regulator is arranged on the frame; the temperature controller is additionally provided with the elastic sheet, the diaphragm capsule moves to drive the elastic sheet, and then the elastic sheet drives the spring sheet assembly to move, so that the work load of the spring sheet assembly is effectively reduced, and the service life of the temperature controller is prolonged. The upper end of the ejector rod is inserted into the third through hole of the long spring piece to serve as a support of the spring assembly, so that the stability of the temperature controller is greatly improved.
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.
The automatic assembly degree of the liquid expansion type temperature controller in the prior art is not as good as expected, and the push rod device has the falling risk, is easy to deform under external force, has larger work load of the spring piece assembly, and the like.
Disclosure of utility model
The utility model aims to provide a liquid expansion type temperature controller which can not fall off or run when a spring piece acts, lighten the load of a spring piece assembly and has long service life.
The purpose of the utility model is realized in the following way:
The liquid expansion type temperature controller comprises a frame, a regulator, a diaphragm capsule, a liquid temperature sensing element, a spring plate, porcelain rice, a spring plate component, a push rod, a first terminal and a second terminal, wherein the regulator is arranged on the frame;
the elastic sheet is arranged in the frame and positioned below the diaphragm capsule, a first through hole is formed in the position, corresponding to the conical head, of the elastic sheet, a second through hole is formed in the position, close to the end part of the elastic sheet, and the conical head is abutted against the first through hole;
One end of the first terminal is connected with the frame, the other end of the first terminal extends towards the direction of the inner cavity of the frame, and a stationary contact is arranged at the other end of the first terminal;
The spring piece assembly comprises a long spring piece and a short spring piece, wherein the short spring piece is arranged on the long spring piece, one end of the long spring piece is connected with the frame, the other end of the long spring piece extends towards the direction of an inner cavity of the frame, a third through hole is formed in the long spring piece, a fourth through hole is formed in the position, close to the other end of the long spring piece, a fifth through hole is formed in the short spring piece, the fifth through hole is communicated with the fourth through hole, a movable contact is arranged at the position, corresponding to the fixed contact, of the short spring piece, and the second terminal is connected with the long spring piece in the frame;
The porcelain rice is arranged between the elastic sheet and the long spring sheet, the upper end of the porcelain rice is abutted against the second through hole, and the lower end of the porcelain rice passes through the fifth through hole and is abutted against the fourth through hole;
The ejector rod is arranged in the frame and positioned below the long spring piece, and the upper end of the ejector rod abuts against the third through hole.
The first through-hole of shell fragment is inserted to the conical head of diaphragm capsule, prevents that the shell fragment action process from droing or running the position, porcelain rice is arranged in between shell fragment and the long spring leaf, the upper end of porcelain rice supports and leans on in the shell fragment second through-hole, the lower extreme of porcelain rice passes the fifth through-hole of short spring leaf and supports and lean on the fourth through-hole of long spring leaf, prevents that the spring leaf subassembly action process from droing or running the position, through opening at shell fragment, long spring leaf, short spring leaf, transmission part card is put in through-hole department, prevents that transmission part action in-process, shell fragment, long spring leaf, short spring leaf from droing or running the position, improves the stability of temperature controller greatly.
The temperature controller is additionally provided with the elastic sheet, the diaphragm capsule moves to drive the elastic sheet, and then the elastic sheet drives the spring sheet assembly to move, so that the work load of the spring sheet assembly is effectively reduced, and the service life of the temperature controller is prolonged.
The upper end of the ejector rod is inserted into the third through hole of the long spring piece to serve as a support of the spring assembly, so that the stability of the temperature controller is greatly improved.
The aim of the utility model can be also solved by adopting the following technical measures:
Further, the frame includes the fixed plate, the fixed plate is opened jaggedly, the surface of fixed plate is provided with first bending hook, the back of fixed plate is provided with the second bending hook, liquid temperature sensing element includes temperature sensing section of thick bamboo and capillary, the front end mouth intercommunication of capillary the bellows, the anterior segment of capillary is C shape crooked card and puts on the second bending hook, the back end of capillary passes the breach and stretches out the fixed plate surface and block and put on first bending hook, the back port intercommunication of capillary the temperature sensing section of thick bamboo.
The front section of the capillary tube is C-shaped bent and clamped on the second bending hook, the C-shaped bent part of the capillary tube can be prevented from jumping up and down when the capillary tube is pulled, and the rear section of the capillary tube penetrates through the notch to extend out of the surface of the fixing plate and is clamped on the first bending hook, so that the fixing strength of the capillary tube is effectively enhanced, and the temperature controller can not influence the temperature control temperature of the temperature controller when being produced or used.
Further, the frame also comprises an L-shaped bracket and a rivet, one end of the rivet is connected with one end of the fixing plate, the other end of the rivet is connected with one end of the bracket, the other end of the bracket is connected with the other end of the fixing plate, and the fixing plate, the L-shaped bracket and the rivet enclose the frame. The fixed plate, the L-shaped support and the rivet are connected to form a frame structure, the temperature controller is not easy to deform due to external force, and stability and compression resistance of the temperature controller are improved.
Further, the novel ceramic tile further comprises a first ceramic ring, a second ceramic ring, a third ceramic ring, a fourth ceramic ring and a ceramic cylinder, wherein the ceramic cylinder is sleeved on the rivet, the first ceramic ring, the second ceramic ring, the third ceramic ring and the fourth ceramic ring are sleeved on the ceramic cylinder, the elastic sheet is sleeved on the ceramic cylinder and is positioned between the first ceramic ring and the second ceramic ring, the first terminal is sleeved on the ceramic cylinder and is positioned between the second ceramic ring and the third ceramic ring, the second terminal is sleeved on the ceramic cylinder and is positioned between the third ceramic ring and the fourth ceramic ring, and the elastic sheet is sleeved on the ceramic cylinder and is positioned between the second terminal and the fourth ceramic ring.
Further, the temperature-sensing liquid regulator also comprises a plastic shell, the plastic shell is provided with a vent, the frame is arranged in the plastic shell, the upper end of the regulator penetrates through the plastic shell to extend outwards, and the liquid temperature-sensing element is exposed out of the plastic shell. A plastic shell is sleeved outside the temperature controller main body and used for protecting internal parts, pollution and pressure resistance, and the plastic shell is provided with a vent, so that heat dissipation is facilitated when the temperature controller works.
The beneficial effects of the utility model are as follows:
According to the utility model, the conical head of the diaphragm capsule is inserted into the first through hole of the elastic sheet to prevent the elastic sheet from falling off or running in the action process, the porcelain rice is arranged between the elastic sheet and the long spring sheet, the upper end of the porcelain rice is abutted against the second through hole of the elastic sheet, the lower end of the porcelain rice passes through the fifth through hole of the short spring sheet and is abutted against the fourth through hole of the long spring sheet, the spring sheet component is prevented from falling off or running in the action process, and the transmission part is blocked at the through holes by the through holes formed in the elastic sheet, the long spring sheet and the short spring sheet, so that the falling off or running of the elastic sheet, the long spring sheet and the short spring sheet in the action process of the transmission part is prevented, and the stability of the temperature controller is greatly improved.
According to the utility model, the elastic sheet is additionally arranged on the temperature controller, the bellows acts to drive the elastic sheet, and then the elastic sheet drives the spring sheet assembly to act, so that the work load of the spring sheet assembly is effectively reduced, and the service life of the temperature controller is prolonged.
According to the utility model, the upper end of the ejector rod is inserted into the third through hole of the long spring piece to be used as a support of the spring assembly, so that the stability of the temperature controller is greatly improved.
According to the utility model, the front section of the capillary tube is clamped on the second bending hook in a C-shaped bending manner, so that the C-shaped bending part of the capillary tube can be prevented from jumping up and down when the capillary tube is pulled, and the rear section of the capillary tube penetrates through the notch to extend out of the surface of the fixing plate and is clamped on the first bending hook, so that the fixing strength of the capillary tube is effectively enhanced, and the temperature control temperature of the temperature controller is not influenced when the temperature controller is produced or used by pulling the capillary tube.
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 schematic view of the liquid expansion thermostat (except for the plastic housing).
FIG. 4 is another angular schematic view of the liquid expansion thermostat (except for the plastic housing).
Fig. 5 is a cross-sectional view of the liquid expansion thermostat.
Fig. 6 is an exploded view of the liquid expansion thermostat.
Fig. 7 is another angular 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 is shown in combination with fig. 1 to 7, and the liquid expansion type temperature controller comprises a frame 1, a regulator 2, a diaphragm box 3, a liquid temperature sensing element 4, a spring piece 5, a porcelain rice 6, a spring piece assembly 7, a push rod 8, a first terminal 9 and a second terminal 10, wherein the regulator 2 is arranged on the frame 1, the diaphragm box 3 is arranged in the frame 1, the upper end of the diaphragm box 3 is connected with the regulator 2, the lower end of the diaphragm box 3 is provided with a cone head 31, and the liquid temperature sensing element 4 is connected with the diaphragm box 3;
The elastic piece 5 is arranged in the frame 1 and positioned below the diaphragm capsule 3, a first through hole 51 is formed in the position, corresponding to the conical head 31, of the elastic piece 5, a second through hole 52 is formed in the position, close to the end part, of the elastic piece 5, and the conical head 31 abuts against the first through hole 51;
One end of the first terminal 9 is connected with the frame 1, the other end of the first terminal 9 extends towards the direction of the inner cavity of the frame 1, and the other end of the first terminal 9 is provided with a fixed contact 91;
The spring piece assembly 7 comprises a long spring piece 71 and a short spring piece 72, the short spring piece 72 is arranged on the long spring piece 71, one end of the long spring piece 71 is connected with the frame 1, the other end of the long spring piece 71 extends towards the direction of the inner cavity of the frame 1, the long spring piece 71 is provided with a third through hole 711, the position, close to the other end, of the long spring piece 71 is provided with a fourth through hole 712, the short spring piece 72 is provided with a fifth through hole 721, the fifth through hole 721 is communicated with the fourth through hole 712, the short spring piece 72 is provided with a movable contact 722 corresponding to the position of the fixed contact 91, and the second terminal 10 is arranged in the frame 1 and connected with the long spring piece 71;
The porcelain rice 6 is arranged between the elastic sheet 5 and the long spring sheet 71, the upper end of the porcelain rice 6 is abutted against the second through hole 52, and the lower end of the porcelain rice 6 passes through the fifth through hole 721 and is abutted against the fourth through hole 712;
The ejector rod 8 is arranged in the frame 1 and below the long spring piece 71, and the upper end of the ejector rod 8 abuts against the third through hole 711.
Further, the frame 1 includes a fixing plate 11, the fixing plate 11 is provided with a notch 111, a first bending hook 112 is provided on the surface of the fixing plate 11, a second bending hook 113 is provided on the back of the fixing plate 11, the liquid temperature sensing element 4 includes a temperature sensing cylinder 41 and a capillary tube 42, a front port of the capillary tube 42 is communicated with the capsule 3, a front section of the capillary tube 42 is clamped on the second bending hook 113 in a C-shaped bending manner, a rear section of the capillary tube 42 passes through the notch 111, extends out of the surface of the fixing plate 11 and is clamped on the first bending hook 112, and a rear port of the capillary tube 42 is communicated with the temperature sensing cylinder 41.
Further, the frame 1 further comprises an L-shaped bracket 12 and a rivet 13, one end of the rivet 13 is connected with one end of the fixing plate 11, the other end of the rivet 13 is connected with one end of the bracket, the other end of the bracket is connected with the other end of the fixing plate 11, and the fixing plate 11, the L-shaped bracket 12 and the rivet 13 enclose the frame 1.
Further, the ceramic tile further comprises a first ceramic tile 20, a second ceramic tile 30, a third ceramic tile 40, a fourth ceramic tile 50 and a ceramic tile 60, wherein the ceramic tile 60 is sleeved on the rivet 13, the first ceramic tile 20, the second ceramic tile 30, the third ceramic tile 40 and the fourth ceramic tile 50 are sleeved on the ceramic tile 60, the elastic sheet 5 is sleeved on the ceramic tile 60 and is positioned between the first ceramic tile 20 and the second ceramic tile 30, the first terminal 9 is sleeved on the ceramic tile 60 and is positioned between the second ceramic tile 30 and the third ceramic tile 40, the second terminal 10 is sleeved on the ceramic tile 60 and is positioned between the third ceramic tile 40 and the fourth ceramic tile 50, and the elastic sheet 5 is sleeved on the ceramic tile 60 and is positioned between the second terminal 10 and the fourth ceramic tile 50.
Further, the temperature-sensing device also comprises a plastic shell 70, the plastic shell 70 is provided with a ventilation opening 701, the frame 1 is arranged in the plastic shell 70, the upper end of the regulator 2 extends outwards through the plastic shell 70, and the liquid temperature-sensing element 4 is exposed out of the plastic shell 70.
The lower end of the conical head 31, the upper end of the porcelain rice 6, the lower end of the porcelain rice 6 and the upper end of the ejector rod 8 are all conical.
Working principle:
when the temperature of the controlled object rises to the set value, the working medium (liquid) in the temperature sensing cylinder 41 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 41 expands, the diaphragm capsule 3 expands to drive the conical head 31 to move, and the conical head 31 applies pressure to the long spring piece 71 through the elastic sheet 5 and the porcelain rice 6 until the short spring piece 72 deforms, and the movable contact 722 of the short spring piece 72 is in contact with the stationary contact 91 of the first terminal 9 for electrifying.
When the temperature of the controlled object is reduced, the working medium (liquid) in the temperature sensing cylinder 41 generates a corresponding physical phenomenon (volume change) of thermal expansion and contraction, so that the diaphragm capsule 3 communicated with the temperature sensing cylinder 41 contracts, the diaphragm capsule 3 contracts to drive the cone head 31 to withdraw, the long spring piece 71 loses pressure, the short spring piece 72 is restored to an initial state, and the movable contact 722 of the short spring piece 72 is separated from the fixed contact 91 of the first terminal 9, thereby achieving the purpose of power failure.
The conical head 31 of the diaphragm capsule 3 is inserted into the first through hole 51 of the spring 5 to prevent the spring 5 from falling off or running, the porcelain rice 6 is arranged between the spring 5 and the long spring piece 71, the upper end of the porcelain rice 6 is propped against the inside of the second through hole 52 of the spring 5, the lower end of the porcelain rice 6 passes through the fifth through hole 721 of the short spring piece 72 and is propped against the fourth through hole 712 of the long spring piece 71 to prevent the spring piece assembly 7 from falling off or running, and through the through holes formed in the spring 5, the long spring piece 71 and the short spring piece 72, the transmission component is clamped at the through holes to prevent the spring 5, the long spring piece 71 and the short spring piece 72 from falling off or running in the action process of the transmission component, so that the stability of the temperature controller is greatly improved.
The temperature controller is additionally provided with the elastic sheet 5, the diaphragm capsule 3 moves to drive the elastic sheet 5, then the elastic sheet 5 drives the spring sheet assembly 7 to move, the work load of the spring sheet assembly 7 is effectively reduced, and the service life of the temperature controller is prolonged.
The fixing plate 11, the L-shaped support 12 and the rivet 13 are connected to form a frame 1 structure, the temperature controller is not easy to deform due to external force, and the stability and the pressure resistance of the temperature controller are improved.
The plastic shell 70 is sleeved outside the temperature controller main body and used for protecting internal parts, preventing pollution and compression, and the plastic shell 70 is provided with a ventilation opening 701, so that heat dissipation is facilitated when the temperature controller works.
The front section of the capillary tube 42 is clamped on the second bending hook 113 in a C-shaped bending manner, so that the capillary tube 42 can be prevented from jumping up and down at the C-shaped bending portion of the capillary tube 42 when the capillary tube 42 is pulled, and the rear section of the capillary tube 42 passes through the notch 111 to extend out of the surface of the fixing plate 11 and is clamped on the first bending hook 112, so that the fixing strength of the capillary tube 42 is effectively enhanced, and the temperature control temperature of the temperature controller cannot be influenced when the temperature controller is produced or used by pulling the capillary tube 42.
The upper end of the ejector rod 8 is inserted into the third through hole 711 of the long spring piece 71 to serve as a support of a spring assembly, so that the stability of the temperature controller is greatly improved.
The temperature controller has the advantages of small parts, simple structure, easy assembly and high stability, and can realize high automatic production degree.
Claims (5)
1. The utility model provides a liquid formula temperature controller that rises, includes frame, regulator, bellows, liquid temperature sensing element, shell fragment, porcelain rice, spring leaf subassembly, ejector pin, first terminal and second terminal, its characterized in that: the regulator is arranged on the frame, the diaphragm capsule is arranged in the frame, the upper end of the diaphragm capsule is connected with the regulator, the lower end of the diaphragm capsule is provided with a cone head, and the liquid temperature sensing element is connected with the diaphragm capsule;
the elastic sheet is arranged in the frame and positioned below the diaphragm capsule, a first through hole is formed in the position, corresponding to the conical head, of the elastic sheet, a second through hole is formed in the position, close to the end part of the elastic sheet, and the conical head is abutted against the first through hole;
One end of the first terminal is connected with the frame, the other end of the first terminal extends towards the direction of the inner cavity of the frame, and a stationary contact is arranged at the other end of the first terminal;
The spring piece assembly comprises a long spring piece and a short spring piece, wherein the short spring piece is arranged on the long spring piece, one end of the long spring piece is connected with the frame, the other end of the long spring piece extends towards the direction of an inner cavity of the frame, a third through hole is formed in the long spring piece, a fourth through hole is formed in the position, close to the other end of the long spring piece, a fifth through hole is formed in the short spring piece, the fifth through hole is communicated with the fourth through hole, a movable contact is arranged at the position, corresponding to the fixed contact, of the short spring piece, and the second terminal is connected with the long spring piece in the frame;
The porcelain rice is arranged between the elastic sheet and the long spring sheet, the upper end of the porcelain rice is abutted against the second through hole, and the lower end of the porcelain rice passes through the fifth through hole and is abutted against the fourth through hole;
The ejector rod is arranged in the frame and positioned below the long spring piece, and the upper end of the ejector rod abuts against the third through hole.
2. The liquid expansion thermostat of claim 1, wherein: the frame comprises a fixing plate, a notch is formed in the fixing plate, a first bending hook is arranged on the surface of the fixing plate, a second bending hook is arranged on the back surface of the fixing plate, the liquid temperature sensing element comprises a temperature sensing barrel and a capillary tube, the front port of the capillary tube is communicated with the membrane box, the front section of the capillary tube is C-shaped and is clamped on the second bending hook, the rear section of the capillary tube penetrates through the notch to extend out of the surface of the fixing plate and is clamped on the first bending hook, and the rear port of the capillary tube is communicated with the temperature sensing barrel.
3. The liquid expansion thermostat of claim 2, wherein: the frame also comprises an L-shaped bracket and a rivet, one end of the rivet is connected with one end of the fixing plate, the other end of the rivet is connected with one end of the bracket, the other end of the bracket is connected with the other end of the fixing plate, and the fixing plate, the L-shaped bracket and the rivet enclose the frame.
4. A liquid expansion thermostat according to claim 3 wherein: still include first porcelain ring, second porcelain ring, third porcelain ring, fourth porcelain ring and porcelain tube, porcelain tube cover is put on the rivet, first porcelain ring, second porcelain ring, third porcelain ring, fourth porcelain ring cover are put on the porcelain tube, the shell fragment cover is put on the porcelain tube and is located between first porcelain ring and the second porcelain ring, first terminal cover is put on the porcelain tube and is located between second porcelain ring and the third porcelain ring, second terminal cover is put on the porcelain tube and is located between third porcelain ring and the fourth porcelain ring, the shell fragment cover is put on the porcelain tube and is located between second terminal and the fourth porcelain ring.
5. The liquid expansion thermostat of claim 1, wherein: the temperature-sensing liquid regulator is characterized by further comprising a plastic shell, wherein the plastic shell is provided with a vent, the frame is arranged in the plastic shell, the upper end of the regulator penetrates through the plastic shell to extend outwards, and the liquid temperature-sensing element is exposed out of the plastic shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323048939.9U CN221008851U (en) | 2023-11-11 | 2023-11-11 | Liquid expansion type temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323048939.9U CN221008851U (en) | 2023-11-11 | 2023-11-11 | Liquid expansion type temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221008851U true CN221008851U (en) | 2024-05-24 |
Family
ID=91127478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323048939.9U Active CN221008851U (en) | 2023-11-11 | 2023-11-11 | Liquid expansion type temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221008851U (en) |
-
2023
- 2023-11-11 CN CN202323048939.9U patent/CN221008851U/en active Active
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