CN220121740U - Improved structure of liquid expansion type temperature controller - Google Patents
Improved structure of liquid expansion type temperature controller Download PDFInfo
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- CN220121740U CN220121740U CN202321424210.4U CN202321424210U CN220121740U CN 220121740 U CN220121740 U CN 220121740U CN 202321424210 U CN202321424210 U CN 202321424210U CN 220121740 U CN220121740 U CN 220121740U
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- push rod
- movable contact
- spring piece
- temperature controller
- terminal
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- 239000007788 liquid Substances 0.000 title claims abstract description 39
- 239000002775 capsule Substances 0.000 claims abstract description 29
- 229910052573 porcelain Inorganic materials 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 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
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model relates to an improved structure of a liquid expansion type temperature controller, which comprises a frame, an adjusting shaft, a first push rod, a second push rod, a diaphragm capsule, a movable contact combined spring plate, a liquid temperature sensing element, a first terminal and a second terminal, wherein the adjusting shaft is internally provided with a shaft hole with an opening at the bottom, and the adjusting shaft is arranged on the frame; the diaphragm capsule is fixed on the frame, the diaphragm capsule is firmly installed, the lower end of the first push rod is fixed on the convex point of the diaphragm capsule, the upper end of the first push rod is propped against the movable contact combined elastic sheet, the first push rod cannot fall off after being assembled, the upper end of the second push rod is inserted into the shaft hole of the adjusting shaft, the lower end of the second push rod is inserted into the positioning hole of the movable contact combined elastic sheet, the second push rod cannot fall off after being assembled, the second push rod can also play a role in supporting the movable contact combined elastic sheet, and the stability of the temperature controller is greatly improved.
Description
Technical Field
The utility model relates to an improved structure of 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 and is easy to deform under external force.
Disclosure of Invention
The utility model aims to provide an improved structure of a liquid expansion type temperature controller, which has high automatic assembly degree, no falling of a push rod and strong compression resistance.
The purpose of the utility model is realized in the following way:
the improved structure of the liquid expansion type temperature controller comprises a frame, an adjusting shaft, a first push rod, a second push rod, a membrane box, a movable contact combined spring plate, a liquid temperature sensing element, a first terminal and a second terminal, wherein a shaft hole with an opening at the bottom is arranged in the adjusting shaft, and the adjusting shaft is arranged on the frame;
the first terminal is arranged in the frame and is provided with a stationary contact;
the second terminal is connected with the movable contact combined spring piece, the second terminal and the movable contact combined spring piece are arranged in the frame, one end of the movable contact combined spring piece is provided with a movable contact, and the other end of the movable contact combined spring piece is provided with a positioning hole;
the liquid temperature sensing element is connected with the diaphragm capsule, the diaphragm capsule is fixed in the frame and positioned below the movable contact combined spring plate, the lower end of the first push rod is fixed on the convex point of the diaphragm capsule, and the upper end of the first push rod is abutted against the movable contact combined spring plate;
the upper end of the second push rod is inserted into the shaft hole of the adjusting shaft, and the lower end of the second push rod is abutted against the positioning hole.
The diaphragm capsule is fixed on the frame, the diaphragm capsule is firmly installed, the lower end of the first push rod is fixed on the convex point of the diaphragm capsule, the upper end of the first push rod is propped against the movable contact combined elastic sheet, the first push rod cannot fall off after being assembled, the upper end of the second push rod is inserted into the shaft hole of the adjusting shaft, the lower end of the second push rod is inserted into the positioning hole of the movable contact combined elastic sheet, the second push rod cannot fall off after being assembled, the second push rod can also play a role in supporting the movable contact combined elastic sheet, and 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 movable contact combined spring piece comprises a long spring piece and a short spring piece, one end of the long spring piece is connected with the first terminal, a lower hole site is formed in the other end of the long spring piece, which is close to the end position of the long spring piece, the short spring piece is fixed on the long spring piece, one end of the short spring piece is provided with the movable contact, an upper hole site is formed in the other end of the short spring piece, which corresponds to the lower hole site, and the upper hole site and the lower hole site are communicated to form a positioning hole.
The upper end of the second push rod is inserted into the shaft hole of the adjusting shaft, the lower end of the second push rod is inserted into the positioning hole of the movable contact combined elastic sheet, the second push rod cannot fall off after being assembled, the second push rod can also play a role in supporting the movable contact combined elastic sheet, and the stability of the temperature controller is greatly improved.
Further, the long spring piece is provided with a cavity, and the upper end of the first push rod stretches into the cavity. The lower extreme of first push rod is fixed on the bump of bellows, and the upper end of first push rod inserts in the cavity of long spring leaf, can not drop after the first push rod assembly, improves the stability of temperature controller greatly.
Further, the frame includes support, fixed plate and rivet, the support is provided with the inserted sheet, the fixed plate is provided with the socket, the inserted sheet inserts in the socket and chucking, in the rivet was arranged in the support, the rivet upper end passed the fixed plate and locked, and the rivet lower extreme passed the support and locked, support, fixed plate and rivet connection formed the frame. The fixed plate, the 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, still include porcelain tube, first porcelain ring, second porcelain ring and third porcelain ring, the porcelain tube cover is put on the rivet, first porcelain ring, second terminal, second porcelain ring, first terminal and third porcelain ring are put on the porcelain tube from top to bottom in proper order.
Further, the bracket is provided with a clip.
Further, the bellows is fixed to the bracket by press riveting. The diaphragm capsule is fixed on the support in a riveting mode, and the diaphragm capsule is firmly installed.
Further, glue is coated at the bump connection part of the first push rod and the bellows. The lower extreme of first push rod passes through glue to be fixed on the bump of bellows, and in the cavity of long spring leaf was inserted to the upper end of first push rod, can not drop after the first push rod assembly, improves the stability of temperature controller greatly.
Further, the fixed plate is provided with a mounting opening, and the lower end of the adjusting shaft is fixed in the mounting opening in a threaded connection mode.
Further, the liquid temperature sensing element comprises a temperature sensing barrel and a capillary tube, one end of the capillary tube is communicated with the diaphragm capsule, the other end of the capillary tube is connected with the temperature sensing barrel, and the capillary tube is clamped by a clip. The capillary tube is vertically sleeved on the clip, and the clip clamps the capillary tube, 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.
The beneficial effects of the utility model are as follows:
according to the utility model, the diaphragm capsule is fixed on the support in a riveting mode, the diaphragm capsule is firmly installed, the lower end of the first push rod is fixed on the convex point of the diaphragm capsule through glue, the upper end of the first push rod is inserted into the cavity of the long spring piece, the first push rod cannot fall off after being assembled, the upper end of the second push rod is inserted into the shaft hole of the adjusting shaft, the lower end of the second push rod is inserted into the positioning hole of the movable contact combined spring piece, the second push rod cannot fall off after being assembled, the second push rod can also play a role in supporting the movable contact combined spring piece, and the stability of the temperature controller is greatly improved.
According to the utility model, the fixing plate, the bracket and the rivet are connected to form a frame structure, so that 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.
According to the utility model, the capillary tube is straightened and sleeved on the clip, and the clip clamps the capillary tube, so that the fixing strength of the capillary tube is effectively enhanced, and the temperature control temperature of the temperature controller is not influenced by pulling the capillary tube during production or use of the temperature controller.
Drawings
Fig. 1 is a schematic diagram of an improved structure of a liquid expansion type temperature controller.
Fig. 2 is another angular schematic view of an improved structure of the liquid expansion type temperature controller.
Fig. 3 is a front view of an improved structure of the liquid expansion type temperature controller.
Fig. 4 is a top view of an improved structure of the liquid expansion type temperature controller.
Fig. 5 is a cross-sectional view A-A of fig. 4.
Fig. 6 is an exploded view of an improved structure 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 6, and the improved structure of the liquid expansion type temperature controller comprises a frame 1, an adjusting shaft 2, a first push rod 3, a second push rod 4, a diaphragm capsule 5, a movable contact combined spring plate 6, a liquid temperature sensing element 7, a first terminal 8 and a second terminal 9, wherein a shaft hole 21 with an opening at the bottom is arranged in the adjusting shaft 2, and the adjusting shaft 2 is arranged on the frame 1;
the first terminal 8 is arranged in the frame 1, and the first terminal 8 is provided with a stationary contact 81;
the second terminal 9 is connected with the movable contact combined spring plate 6, the second terminal 9 and the movable contact combined spring plate 6 are arranged in the frame 1, one end of the movable contact combined spring plate 6 is provided with a movable contact 61, and the other end of the movable contact combined spring plate 6 is provided with a positioning hole 62;
the liquid temperature sensing element 7 is connected with the diaphragm capsule 5, the diaphragm capsule 5 is fixed in the frame 1 and positioned below the movable contact combined spring plate 6, the lower end of the first push rod 3 is fixed on a convex point 51 of the diaphragm capsule 5, and the upper end of the first push rod 3 is abutted against the movable contact combined spring plate 6;
the upper end of the second push rod 4 is inserted into the shaft hole 21 of the adjusting shaft 2, and the lower end of the second push rod 4 is abutted against the positioning hole 62.
Further, the movable contact combined spring 6 includes a long spring piece 63 and a short spring piece 64, one end of the long spring piece 63 is connected with the first terminal 8, a lower hole 631 is formed at a position of the other end of the long spring piece 63 near the end thereof, the short spring piece 64 is fixed on the long spring piece 63, one end of the short spring piece 64 is provided with the movable contact 61, an upper hole 641 is formed at a position of the other end of the short spring piece 64 corresponding to the lower hole 631, and the upper hole 641 and the lower hole 631 are communicated to form a positioning hole 62.
Further, the long spring piece 63 is provided with a cavity 632, and the upper end of the first push rod 3 extends into the cavity 632.
Further, the frame 1 comprises a bracket 11, a fixing plate 12 and a rivet 13, wherein the bracket 11 is provided with an inserting piece 111, the fixing plate 12 is provided with a socket 121, the inserting piece 111 is inserted into the socket 121 and clamped, the rivet 13 is arranged in the bracket 11, the upper end of the rivet 13 penetrates through the fixing plate 12 and is locked, the lower end of the rivet 13 penetrates through the bracket 11 and is locked, and the bracket 11, the fixing plate 12 and the rivet 13 are connected to form the frame 1.
Further, the ceramic tube 10 is sleeved on the rivet 13, and the first ceramic ring 20, the second terminal 9, the second ceramic ring 30, the first terminal 8 and the third ceramic ring 40 are sequentially sleeved on the ceramic tube 10 from top to bottom.
Further, the bracket 11 is provided with a clip 112.
Further, the bellows 5 is fixed to the bracket 11 by caulking.
Further, glue is coated at the joint of the convex point 51 of the first push rod 3 and the bellows 5.
Further, the fixing plate 12 is provided with a mounting opening 122, and the lower end of the adjusting shaft 2 is fixed in the mounting opening 122 in a threaded connection manner.
Further, the liquid temperature sensing element 7 comprises a temperature sensing barrel 71 and a capillary tube 72, one end of the capillary tube 72 is communicated with the diaphragm capsule 5, the other end of the capillary tube 72 is connected with the temperature sensing barrel 71, and the clamp 112 clamps the capillary tube 72.
Working principle:
when the temperature of the controlled object rises to the set value, the working medium (liquid) in the temperature sensing cylinder 71 generates a corresponding physical phenomenon (volume change) of thermal expansion and cold contraction, so that the bellows 5 communicated with the temperature sensing cylinder 71 generates expansion, the bellows 5 expands to drive the first push rod 3 to move, the first push rod 3 applies pressure until the movable contact combined spring sheet 6 generates deformation, and the movable contact 61 of the short spring sheet and the fixed contact 81 of the first terminal 8 are combined and electrified.
When the temperature of the controlled object is reduced, the working medium (liquid) in the temperature sensing cylinder 71 generates a corresponding physical phenomenon (volume change) of thermal expansion and contraction, so that the bellows 5 communicated with the temperature sensing cylinder 71 contracts, the bellows 5 contracts to drive the first push rod 3 to withdraw, the movable contact combined spring 6 loses pressure, the movable contact combined spring 6 is restored to an initial state, and the movable contact 61 of the short spring is separated from the fixed contact 81 of the first terminal 8, thereby achieving the purpose of power failure.
The capsule 5 is fixed on the support 11 through the riveting mode, the capsule 5 is installed firmly, the lower extreme of first push rod 3 is fixed on the bump 51 of capsule 5 through glue moreover, the upper end of first push rod 3 inserts in the cavity 632 of long spring leaf 63, can not drop after first push rod 3 assembles, in the shaft hole 21 of regulating spindle 2 is inserted to second push rod 4 upper end again, in the locating hole 62 of movable contact combination shell fragment 6 is inserted to second push rod 4 lower extreme, can not drop after the assembly of second push rod 4, and second push rod 4 also can play the effect of supporting movable contact combination shell fragment 6 moreover, improve the stability of temperature controller greatly.
The fixing plate 12, the bracket 11 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 compression resistance of the temperature controller are improved.
The capillary tube 72 is vertically sleeved on the clip 112, and the clip 112 clamps the capillary tube 72, so that the fixing strength of the capillary tube 72 is effectively enhanced, and the temperature controller can not influence the temperature control temperature of the temperature controller even when the temperature controller is produced or used.
The temperature controller has the advantages of small parts, simple structure, easy assembly and high stability, and can realize high automatic production degree.
Claims (10)
1. The utility model provides a liquid formula temperature controller improvement structure that rises, includes frame, regulating spindle, first push rod, second push rod, bellows, movable contact combination shell fragment, liquid temperature sensing element, first terminal and second terminal, its characterized in that:
the adjusting shaft is internally provided with a shaft hole with an opening at the bottom, and is arranged on the frame;
the first terminal is arranged in the frame and is provided with a stationary contact;
the second terminal is connected with the movable contact combined spring piece, the second terminal and the movable contact combined spring piece are arranged in the frame, one end of the movable contact combined spring piece is provided with a movable contact, and the other end of the movable contact combined spring piece is provided with a positioning hole;
the liquid temperature sensing element is connected with the diaphragm capsule, the diaphragm capsule is fixed in the frame and positioned below the movable contact combined spring plate, the lower end of the first push rod is fixed on the convex point of the diaphragm capsule, and the upper end of the first push rod is abutted against the movable contact combined spring plate;
the upper end of the second push rod is inserted into the shaft hole of the adjusting shaft, and the lower end of the second push rod is abutted against the positioning hole.
2. The improved structure of the liquid expansion type temperature controller according to claim 1, wherein: the movable contact combined spring piece comprises a long spring piece and a short spring piece, one end of the long spring piece is connected with a first terminal, a lower hole site is formed in the other end of the long spring piece, which is close to the end position of the long spring piece, the short spring piece is fixed on the long spring piece, one end of the short spring piece is provided with the movable contact, an upper hole site is formed in the other end of the short spring piece, which corresponds to the lower hole site, and the upper hole site and the lower hole site are communicated to form a positioning hole.
3. The improved structure of the liquid expansion type temperature controller according to claim 2, wherein: the long spring piece is provided with a cavity, and the upper end of the first push rod stretches into the cavity.
4. The improved structure of the liquid expansion type temperature controller according to claim 1, wherein: the frame includes support, fixed plate and rivet, the support is provided with the inserted sheet, the fixed plate is provided with the socket, the inserted sheet inserts in the socket and chucking, the rivet is arranged in the support, and the rivet upper end passes the fixed plate and locks, and the rivet lower extreme passes the support and locks, support, fixed plate and rivet connection form the frame.
5. The improved structure of the liquid expansion type temperature controller according to claim 4, wherein: still include porcelain tube, first porcelain ring, second porcelain ring and third porcelain ring, the porcelain tube cover is put on the rivet, first porcelain ring, second terminal, second porcelain ring, first terminal and third porcelain ring are put on the porcelain tube from top to bottom in proper order.
6. The improved structure of the liquid expansion type temperature controller according to claim 4, wherein: the bracket is provided with a clip.
7. The improved structure of the liquid expansion type temperature controller according to claim 4, wherein: the bellows is fixed on the support in a press riveting mode.
8. The improved structure of the liquid expansion type temperature controller according to claim 1, wherein: glue is coated at the joint of the convex points of the first push rod and the diaphragm capsule.
9. The improved structure of the liquid expansion type temperature controller according to claim 4, wherein: the fixed plate is provided with a mounting opening, and the lower end of the adjusting shaft is fixed in the mounting opening in a threaded connection mode.
10. The improved structure of the liquid expansion type temperature controller according to claim 6, wherein: the liquid temperature sensing element comprises a temperature sensing barrel and a capillary tube, one end of the capillary tube is communicated with the diaphragm capsule, the other end of the capillary tube is connected with the temperature sensing barrel, and the capillary tube is clamped by a clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321424210.4U CN220121740U (en) | 2023-06-05 | 2023-06-05 | Improved structure of liquid expansion type temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321424210.4U CN220121740U (en) | 2023-06-05 | 2023-06-05 | Improved structure of liquid expansion type temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220121740U true CN220121740U (en) | 2023-12-01 |
Family
ID=88896933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321424210.4U Active CN220121740U (en) | 2023-06-05 | 2023-06-05 | Improved structure of liquid expansion type temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220121740U (en) |
-
2023
- 2023-06-05 CN CN202321424210.4U patent/CN220121740U/en active Active
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