Noiseless temperature controller

Abstract

The utility model discloses a noiseless temperature controller, which comprises a support, a rivet and a porcelain tube, the top of the rivet penetrates through the support and is riveted and fixed on the support, and the bottom of the rivet is provided with a flanging structure; the porcelain tube is arranged on the peripheral side of the rivet in a sleeving mode and located between the support and the flanging structure. An elastic gasket is arranged between the top of the porcelain tube and the support and / or between the bottom of the porcelain tube and the flanging structure to limit the porcelain tube to move up and down. Therefore, the elastic washer is arranged between the top of the porcelain tube and the bracket and / or between the bottom of the porcelain tube and the flanging structure, so that a gap in the vertical moving direction of the porcelain tube can be filled, the porcelain tube is further prevented from moving up and down, no noise is generated in the use process of the temperature controller, and the use experience of a user is greatly improved. In addition, when the porcelain tube moves under the action of external force, the elastic washer can provide a deformation space to prevent the porcelain tube from being broken, so that the reliability of the temperature controller is improved.

Description

Technical Field

[0001] This utility model relates to the field of temperature controller technology, specifically to a noiseless temperature controller. Background Technology

[0002] This section provides only background information related to this application to enable those skilled in the art to understand this application more thoroughly and accurately, and it is not necessarily prior art.

[0003] Thermostats are widely used in various electric heating appliances and ambient temperature control equipment. Adjustable thermostats typically include a temperature regulating component, a temperature sensing element, and an insulating assembly. This insulating assembly includes a metal rivet, a ceramic tube fitted around the rivet, and multiple ceramic rings spaced vertically around the ceramic tube. When the metal rivet passes through the ceramic tube from bottom to top and its top is fixed to the metal bracket using a flanged riveting process, a certain gap must be maintained between the ceramic tube and the metal bracket in the vertical direction to prevent cracking caused by excessive force during riveting. This design, due to the gap in the vertical movement of the ceramic tube, can cause it to shift and generate significant noise if the thermostat moves during use, thus reducing the user experience. Utility Model Content

[0004] To overcome the defects described in the prior art, this utility model provides a noiseless thermostat. By setting elastic washers between the top of the ceramic tube and the support and / or between the bottom of the ceramic tube and the flanged structure, the gaps in the vertical movement direction of the ceramic tube can be filled, thereby preventing the ceramic tube from moving up and down and ensuring that the thermostat generates no noise during use, which greatly improves the user experience.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A noiseless thermostat includes:

[0007] support;

[0008] A rivet, the top of which passes through the bracket and is riveted to the bracket; the bottom of the rivet has a flange structure;

[0009] A ceramic tube is sleeved on the outer periphery of the rivet and located between the bracket and the flange structure;

[0010] Elastic washers are provided between the top of the ceramic tube and the support and / or between the bottom of the ceramic tube and the flange structure to restrict the vertical movement of the ceramic tube.

[0011] Furthermore, when the elastic washer is provided between the top of the ceramic tube and the bracket, the top surface of the elastic washer abuts against the bottom surface of the bracket, and the bottom surface of the elastic washer abuts against the top surface of the ceramic tube.

[0012] When the elastic washer is provided between the bottom of the ceramic tube and the flange structure, the top surface of the elastic washer abuts against the bottom surface of the ceramic tube, and the bottom surface of the elastic washer abuts against the top surface of the flange structure.

[0013] Furthermore, the elastic washer is a silicone washer.

[0014] Furthermore, it also includes a first ceramic ring, a second ceramic ring, and a third ceramic ring sleeved around the outer periphery of the ceramic tube and located between the support and the flange structure, wherein:

[0015] The first ceramic ring, the second ceramic ring, and the third ceramic ring are arranged sequentially from top to bottom at intervals.

[0016] The outer circumferential surface of the ceramic tube is in clearance fit with the inner circumferential surface of the first ceramic ring, the outer circumferential surface of the ceramic tube is in clearance fit with the inner circumferential surface of the second ceramic ring, and the outer circumferential surface of the ceramic tube is in clearance fit with the inner circumferential surface of the third ceramic ring.

[0017] Furthermore, it also includes an upper connector and a lower connector. The upper connector is sleeved on the outer periphery of the ceramic tube and located between the first ceramic ring and the second ceramic ring. The lower connector is sleeved on the outer periphery of the ceramic tube and located between the second ceramic ring and the third ceramic ring.

[0018] Both the upper and lower terminals are connected to an external circuit for conduction.

[0019] Furthermore, it also includes spring contacts, moving contacts, and fixed contacts, wherein:

[0020] The spring is sleeved on the outer periphery of the ceramic tube and located between the upper connecting piece and the second ceramic ring. The top surface of the fixed end of the spring abuts against the bottom surface of the upper connecting piece to achieve electrical connection. The free end of the spring is connected to one end of the movable contact piece, and the other end of the movable contact piece is provided with a movable contact.

[0021] The fixed contact piece is sleeved on the outer periphery of the ceramic tube and located between the second ceramic ring and the third ceramic ring. The free end of the fixed contact piece is provided with a fixed contact that cooperates with the moving contact.

[0022] Furthermore, it also includes a bimetallic strip, which is sleeved on the outer periphery of the ceramic tube and located between the fixed contact piece and the third ceramic ring, with the top surface of the fixed end of the bimetallic strip abutting against the bottom surface of the fixed end of the fixed contact piece;

[0023] A ceramic connecting rod is provided between the free end of the bimetallic strip and one end of the moving contact piece.

[0024] Furthermore, it also includes a heat-conducting plate, which is sleeved around the outer periphery of the ceramic tube and located between the bimetallic strip and the lower connecting piece, wherein:

[0025] The top surface of the free end of the heat-conducting sheet is electrically connected to the bottom surface of the free end of the bimetallic strip, and the bottom of the fixed end of the heat-conducting sheet abuts against the top surface of the lower connecting piece to achieve electrical connection.

[0026] Furthermore, one end of the bracket is riveted to the rivet, and the other end of the bracket is provided with an adjusting rod and a ceramic column, with the lower end of the ceramic column abutting against the spring piece;

[0027] When the adjusting rod is rotated, the ceramic column can be moved up and down.

[0028] Furthermore, it also includes a limiting protrusion sleeved on the adjusting rod, and an end of the bracket extends and bends to form a limiting stop, the limiting stop being used to abut against the limiting protrusion to restrict the rotation of the adjusting rod.

[0029] In summary, the noiseless thermostat provided by this utility model fills the gaps in the vertical movement direction of the ceramic tube by setting elastic washers between the top of the ceramic tube and the support and / or between the bottom of the ceramic tube and the flanged structure, thereby preventing the ceramic tube from shifting vertically and ensuring that the thermostat produces no noise during use, greatly improving the user experience. Furthermore, when the ceramic tube moves under external force, the elastic washers provide deformation space to prevent the ceramic tube from breaking, thus improving the reliability of the thermostat. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the noiseless temperature controller of this utility model;

[0031] Figure 2 for Figure 1 A structural diagram from another perspective;

[0032] Figure 3 This is a cross-sectional schematic diagram of the noiseless temperature controller of this utility model;

[0033] Figure 4 This is a cross-sectional schematic diagram of another embodiment of the noiseless temperature controller of this utility model.

[0034] The meanings of the reference numerals in the attached figures are as follows:

[0035] 1. Bracket; 101. Limiting block; 2. Rivet; 201. Flanged structure; 3. Ceramic tube; 4. Elastic washer; 5. First ceramic ring; 6. Second ceramic ring; 7. Third ceramic ring; 8. Upper connecting piece; 9. Lower connecting piece; 10. Adjusting rod; 11. Ceramic column; 12. Limiting protrusion; 13. Spring; 14. Moving contact piece; 1401. Moving contact; 15. Fixed contact piece; 1501. Fixed contact; 16. Bimetallic strip; 17. Ceramic connecting rod; 18. Heat-conducting plate. Detailed Implementation

[0036] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0039] Example 1

[0040] See Figure 1-3 This utility model provides a noiseless thermostat, including a bracket 1, a rivet 2, and a ceramic tube 3 made of metal. The bracket 1 has a riveting hole at one end. The rivet 2 passes through the ceramic tube 3 and its top passes through the riveting hole. It is riveted and fixed to the bracket 1 by a flange riveting process. The bottom of the rivet 2 has a flange structure 201. The bottom of the ceramic tube 3 abuts against the top surface of the flange structure 201 to achieve a limiting position.

[0041] In this design, a certain gap is left between the top of the ceramic tube 3 and the bottom of the bracket 1 in the vertical direction. To prevent the ceramic tube 3 from shifting vertically due to movement of the thermostat during use, an elastic washer 4 is also provided at the gap. Specifically, the bottom surface of the elastic washer 4 abuts against the top surface of the ceramic tube 3, and the top surface of the elastic washer 4 abuts against the bottom surface of the bracket 1. Preferably, the elastic washer 4 is a silicone washer.

[0042] Based on the above structure, during use, when the thermostat moves, the elastic washer 4 between the top of the ceramic tube 3 and the bottom of the bracket 1 can fill the gap in the vertical movement direction of the ceramic tube 3, thereby preventing the ceramic tube 3 from moving up and down and ensuring that the thermostat produces no noise during use, which greatly improves the user experience.

[0043] See also Figure 1-3 The thermostat also includes a first ceramic ring 5, a second ceramic ring 6, and a third ceramic ring 7, which are sleeved on the outer periphery of the ceramic tube 3 and located between the support 1 and the flange structure 201. The first ceramic ring 5, the second ceramic ring 6, and the third ceramic ring 7 are arranged sequentially from top to bottom at intervals. The outer periphery of the ceramic tube 3 and the inner periphery of the first ceramic ring 5, the outer periphery of the ceramic tube 3 and the inner periphery of the second ceramic ring 6, and the outer periphery of the ceramic tube 3 and the inner periphery of the third ceramic ring 7 are all clearance fits. This arrangement not only provides deformation space for the ceramic tube 3 when it deforms due to thermal expansion and contraction, preventing the ceramic tube 3 from breaking, but also facilitates the first ceramic ring 5, the second ceramic ring 6, and the third ceramic ring 7 to be fitted onto the ceramic tube 3.

[0044] Furthermore, the thermostat also includes an upper connecting piece 8 and a lower connecting piece 9. The upper connecting piece 8 is sleeved on the outer periphery of the ceramic tube 3 and located between the first ceramic ring 5 and the second ceramic ring 6. The lower connecting piece 9 is sleeved on the outer periphery of the ceramic tube 3 and located between the second ceramic ring 6 and the third ceramic ring 7. Both the upper connecting piece 8 and the lower connecting piece 9 are connected to an external circuit for conduction.

[0045] In addition, it includes a contact structure for switching the circuit between the upper connecting piece 8 and the lower connecting piece 9. This contact structure includes a spring piece 13, a moving contact piece 14, and a fixed contact piece 15. The spring piece 13 is sleeved around the outer periphery of the ceramic tube 3 and located between the upper connecting piece 8 and the second ceramic ring 6. The top surface of the fixed end of the spring piece 13 abuts against the bottom surface of the upper connecting piece 8 to achieve electrical connection. The free end of the spring piece 13 is connected to one end of the moving contact piece 14, and the other end of the moving contact piece 14 is provided with a moving contact 1401. The fixed contact piece 15 is sleeved around the outer periphery of the ceramic tube 3 and located between the second ceramic ring 6 and the third ceramic ring 7. The free end of the fixed contact piece 15 is provided with a fixed contact 1501 that cooperates with the moving contact 1401. Under normal conditions, the moving contact 1401 and the fixed contact 1501 are in contact to make the circuit conductive.

[0046] In addition, it also includes a bimetallic strip 16 and a heat-conducting plate 18. The bimetallic strip 16 is sleeved on the outer periphery of the ceramic tube 3 and located between the fixed contact plate 15 and the third ceramic ring 7. The top surface of the fixed end of the bimetallic strip 16 abuts against the bottom surface of the fixed end of the fixed contact plate 15. A ceramic connecting rod 17 is provided between the free end of the bimetallic strip 16 and one end of the moving contact plate 14. The heat-conducting plate 18 is sleeved on the outer periphery of the ceramic tube 3 and located between the bimetallic strip 16 and the lower connecting piece 9. The top surface of the free end of the heat-conducting plate 18 is electrically connected to the bottom surface of the free end of the bimetallic strip 16. The bottom of the fixed end of the heat-conducting plate 18 abuts against the top surface of the lower connecting piece 9 to achieve electrical connection.

[0047] Therefore, the working principle of the temperature controller of this utility model is as follows:

[0048] When the bimetallic strip 16 receives a temperature rise from an external heat source, and the heat generated by the heat-conducting plate 18 heats the bimetallic strip 16 to compensate for the temperature rise, causing the bimetallic strip 16 to reach the critical temperature value, the bimetallic strip 16 deforms and pushes the moving contact 14 upward through the ceramic connecting rod 17. At this time, the moving contact 1401 separates from the fixed contact 1501, and the circuit between the upper connecting piece 8 and the lower connecting piece 9 is broken. At this time, the heating device connected to the external power supply stops heating. When the temperature drops, the shape of the bimetallic strip 16 returns to normal, and the moving contact 14 falls so that the moving contact 1401 and the fixed contact 1501 re-contact, and a closed circuit is formed again, and the heating device resumes heating.

[0049] See also Figure 1-2 The other end of the bracket 1 is provided with an adjusting rod 10 and a ceramic column 11. The lower end of the ceramic column 11 abuts against the spring piece 13. The adjusting rod 10 is threadedly connected to the bracket 1. When the adjusting rod 10 is rotated, the ceramic column 11 can be moved up and down. The ceramic column 11 abuts against the spring piece 13 to provide the downward pressure of the moving contact 1401, thereby adjusting the temperature when the circuit is turned on or off.

[0050] Additionally, it includes a limiting tab 12 sleeved on the adjusting rod 10. The end of the bracket 1 extends and bends to form a limiting stop 101, which abuts against the limiting tab 12 to restrict the rotation of the adjusting rod 10. Thus, through the abutting engagement between the limiting stop 101 and the limiting tab 12, excessive rotation of the adjusting rod 10 can be avoided, preventing excessive downward pressure and thus ensuring effective separation between the moving contact 1401 and the fixed contact 1501 when the temperature is too high.

[0051] Example 2

[0052] See Figure 4The difference between the thermostat in this embodiment and that in Embodiment 1 is the placement of the elastic washer 4. In this embodiment, the elastic washer 4 is positioned between the bottom of the ceramic tube 3 and the flange structure 201 to restrict the vertical movement of the ceramic tube 3. Preferably, the elastic washer 4 is a silicone washer.

[0053] Specifically, the top surface of the elastic washer 4 abuts against the bottom surface of the ceramic tube 3, and the bottom surface of the elastic washer 4 abuts against the top surface of the flange structure 201. Thus, by filling the gap in the vertical movement direction of the ceramic tube 3, vertical movement of the ceramic tube 3 can be prevented, ensuring that the thermostat operates without noise.

[0054] It should be noted that when this configuration is used, the top of the ceramic tube 3 abuts against the bottom of the bracket 1. However, when the top of the rivet 2 is riveted and fixed to the bracket 1, the ceramic tube 3 can compress the elastic washer 4 under external force to cause movement, thereby preventing the ceramic tube 3 from cracking and ensuring the reliability of the product. Thus, the elastic washer 4 provides a certain deformation space to prevent the ceramic tube 3 from breaking, thereby improving the reliability of the thermostat.

[0055] Of course, in other embodiments, elastic washers 4 can also be provided between the top of the ceramic tube 3 and the support 1, and between the bottom of the ceramic tube 3 and the flange structure 201 to restrict the vertical movement of the ceramic tube 3, which can also achieve the same technical effect. There are no restrictions here.

[0056] In summary, the noiseless thermostat provided by this utility model fills the gaps in the vertical movement direction of the ceramic tube 3 by setting elastic washers 4 between the top of the ceramic tube 3 and the support 1 and / or between the bottom of the ceramic tube 3 and the flange structure 201, thereby preventing the ceramic tube 3 from moving up and down and ensuring that the thermostat generates no noise during use, greatly improving the user experience. In addition, when the ceramic tube 3 moves under external force, the elastic washers 4 provide deformation space to prevent the ceramic tube from breaking, thereby improving the reliability of the thermostat.

[0057] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0058] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0060] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A noiseless temperature controller characterized by, The utility model relates to a ceramic tube fixing device, comprising: a bracket; a rivet, the top of which passes through the bracket and is riveted and fixed on the bracket; the bottom of the rivet is provided with a flange structure; a porcelain tube, which is sleeved on the outer circumferential side of the rivet and is located between the bracket and the flange structure; wherein, an elastic washer is arranged between the top of the porcelain tube and the bracket and / or between the bottom of the porcelain tube and the flange structure to limit the up and down movement of the porcelain tube.

2. The noiseless temperature controller according to claim 1, wherein When the elastic washer is arranged between the top of the porcelain tube and the bracket, the top surface of the elastic washer is in abutment with the bottom surface of the bracket, and the bottom surface of the elastic washer is in abutment with the top surface of the porcelain tube. When the elastic washer is arranged between the bottom of the porcelain tube and the flange structure, the top surface of the elastic washer is in abutment with the bottom surface of the porcelain tube, and the bottom surface of the elastic washer is in abutment with the top surface of the flange structure.

3. The noiseless temperature controller according to claim 1, wherein The elastic washer is a silica gel washer.

4. The silent thermostat according to any one of claims 1-3, characterized in that, Further comprising a first porcelain ring, a second porcelain ring and a third porcelain ring, which are sleeved on the outer circumferential side of the porcelain tube and are located between the bracket and the flange structure, wherein: The first porcelain ring, the second porcelain ring and the third porcelain ring are arranged in sequence from top to bottom. The outer circumferential surface of the porcelain tube and the inner circumferential surface of the first porcelain ring, the outer circumferential surface of the porcelain tube and the inner circumferential surface of the second porcelain ring, and the outer circumferential surface of the porcelain tube and the inner circumferential surface of the third porcelain ring are all gap-fitted.

5. The noiseless thermostat of claim 4, wherein, Further comprising an upper terminal lug and a lower terminal lug, the upper terminal lug is sleeved on the outer circumferential side of the porcelain tube and is located between the first porcelain ring and the second porcelain ring, and the lower terminal lug is sleeved on the outer circumferential side of the porcelain tube and is located between the second porcelain ring and the third porcelain ring; The upper terminal lug and the lower terminal lug are both connected in conduction with an external circuit.

6. The noiseless thermostat of claim 5, wherein, Further comprising a spring, a movable contact and a fixed contact, wherein: The spring is sleeved on the outer circumferential side of the porcelain tube and is located between the upper terminal lug and the second porcelain ring, the fixed end top surface of the spring is in abutment with the bottom surface of the upper terminal lug to realize electrical connection, the free end of the spring is connected with one end of the movable contact, and the other end of the movable contact is provided with a movable contact point; The fixed contact is sleeved on the outer circumferential side of the porcelain tube and is located between the second porcelain ring and the third porcelain ring, and the free end of the fixed contact is provided with a fixed contact point matched with the movable contact point.

7. The noiseless thermostat according to claim 6, wherein Further comprising a bimetallic strip, which is sleeved on the outer circumferential side of the porcelain tube and is located between the fixed contact and the third porcelain ring, the fixed end top surface of the bimetallic strip is in abutment with the fixed end bottom surface of the fixed contact; A ceramic connecting rod is arranged between the free end of the bimetallic strip and one end of the movable contact.

8. The noiseless thermostat of claim 7, wherein, Further comprising a heat-conducting sheet, which is sleeved on the outer circumferential side of the porcelain tube and is located between the bimetallic strip and the lower terminal lug, wherein: The free end top surface of the heat-conducting sheet is electrically connected with the free end bottom surface of the bimetallic strip, and the fixed end bottom of the heat-conducting sheet is in abutment with the top surface of the lower terminal lug to realize electrical connection.

9. The noiseless thermostat of claim 6, wherein, One end of the bracket is riveted with the rivet, and the other end of the bracket is provided with an adjusting rod and a porcelain column, the lower end of the porcelain column abuts against the spring; When the adjusting rod is rotated, the porcelain column can be driven to move up and down.

10. The noiseless thermostat of claim 9, wherein, The adjusting rod is sleeved with a limiting tab, and the end of the support extends to bend a limiting stopper, which is used for abutting against the limiting tab to limit the rotation of the adjusting rod.

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