A thermal compensation thermostat

Abstract

In a thermal compensation thermostat of the present invention, it includes an upper terminal piece, a lower terminal piece, a ceramic core column, a temperature sensing component and a thermal compensation component. The upper and lower terminal pieces are sleeved on the outer wall of the ceramic core column at intervals. The temperature sensing component is electrically connected to the upper and lower terminal pieces. There is a ceramic column cavity in the ceramic core column, and a temperature sensing tube is clamped in the ceramic column cavity. The temperature sensing tube is connected to the thermal compensation component through a wire; in the present invention, the temperature sensing component is electrically connected to the upper and lower terminal pieces, and the thermal compensation component abuts against the temperature sensing component. The thermal compensation component is provided to realize the connection between the temperature sensing component and the heat source, and the thermal compensation component can monitor the temperature rise of the heat source, heat the thermal compensation component, and transfer the temperature of the heat source to the temperature sensing component to achieve the synchronization of the temperature rise of the heat source and the bimetal. The temperature sensing tube is movably embedded in the ceramic core column through a clamping component, and the temperature sensing tube with different thermal efficiencies can be replaced according to actual needs. Therefore, this design not only has a low assembly cost, but also has a high flexibility in use and configuration.

Description

Technical Field

[0001] The present invention relates to a thermostat, belonging to the technical field of thermostats, and particularly to a thermal compensation thermostat. Background Art

[0002] At present, common thermostats on the market generally include electronic thermostats, hydraulic thermostats, and thermostats using shape memory alloys. Among them, the thermostat with a shape memory alloy as the temperature sensing and driving element generally includes a bimetal action piece, a power connection piece, an elastic contact piece, and a mounting rod. The temperature rise received by the bimetal action piece causes it to deform and jump suddenly, driving the elastic contact piece linked to it to cut off the electrical connection with the power connection piece. After the temperature of the bimetal action piece drops, it returns to its initial shape, so that the elastic contact piece reconnects the circuit connection with the power connection piece.

[0003] Since the bimetal in the thermostat uses the temperature in the surrounding air or objects as the judgment index, the bimetal action piece in the thermostat does not directly contact the heat source during operation. The temperature change of the heat source is transmitted to the bimetal action piece through the heat conduction component, which results in an asynchronous temperature rise between the heat source and the bimetal action piece, and there is always a lag in the critical trigger point of the bimetal action piece. In order to reduce the trigger lag and improve the sensitivity of the thermostat, the common practice is to add a thermal compensation element in the thermostat to provide an additional temperature rise to the bimetal action piece. Now, there are also thermostats with temperature sensing rods on the market. The temperature sensing rod of such a thermostat is fixed in the thermostat body, and the temperature sensing rod is composed of a metal rod body and a nickel rod arranged in the rod body. Although this design can provide an additional temperature rise, it still has the following defects:

[0004] The thermostat adopting this structure has a high assembly cost and cannot be flexibly configured with different temperature sensing rods according to requirements.

[0005] Disclosing the information of this background art section is only intended to increase the understanding of the overall background of the present application, and should not be regarded as an admission or any form of implication that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The object of the present invention is to overcome the defects and problems in the prior art that the thermostat has a high assembly cost and the temperature sensing rod configuration is not flexible enough

[0007] to provide a thermal compensation thermostat with a relatively low assembly cost and capable of being flexibly configured according to needs.

[0008] To achieve the above object, the technical solution of the present invention is: a thermal compensation thermostat, which includes an upper connection terminal, a lower connection terminal, a porcelain core column, a temperature sensing assembly, and a thermal compensation assembly; the upper connection terminal and the lower connection terminal are sleeved on the outer wall of the porcelain core column at intervals;

[0009] The temperature sensing component includes an upper spring sheet, a fixed contact sheet and a bimetallic sheet;

[0010] The thermal compensation assembly includes a mounting tube, a wire and a heat conducting sheet. A porcelain column cavity is provided at the bottom of the porcelain column, and the mounting tube is embedded in the inner wall of the porcelain column cavity. The heat conducting sheet is sleeved on the outer wall of the porcelain column, and the heat conducting sheet is electrically connected to the bimetallic sheet.

[0011] A temperature sensing tube is movably connected in the installation cylinder through a clamping assembly, and the temperature sensing tube is connected to the heat conducting sheet through a wire inside the porcelain core column.

[0012] The upper terminal piece is sleeved on the outer wall of the upper part of the porcelain core column, and the lower terminal piece is sleeved on the outer wall of the middle part of the porcelain core column; the upper spring piece, the fixed contact piece and the bimetallic strip are all sleeved on the outer wall of the porcelain core column, the top surface of the fixed end of the upper spring piece is electrically connected to the bottom surface of the upper terminal piece, and the end of the free end of the upper spring piece extends outward in a step shape; the fixed contact piece is spaced below the upper spring piece, and the bimetallic strip is spaced below the fixed contact piece.

[0013] The heat conducting sheet is located in the area between the lower terminal sheet and the bimetallic strip, 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, the bottom surface of the fixed end of the heat conducting sheet is electrically connected to the top surface of the lower terminal sheet, and the heat conducting sheet is covered with a heat conducting material.

[0014] A slide groove is provided inside the installation tube along the inner wall of the installation tube, and at least two groups of clamping components are movably connected in the slide groove; the clamping component includes a clamping plate and a slider, and the clamping plate is arc-shaped, and sliders are fixedly connected at both ends of the arc of the clamping plate. The slider is embedded in the slide groove and movably connected, and the outer arc end of the clamping plate is in conflict with the outer wall of the temperature sensing tube.

[0015] A moving contact piece is arranged below the upper spring piece, a first contact point is riveted to one end of the moving contact piece close to the porcelain core column, one end of a contact bracket is fixedly connected to the first contact point, and the other end of the contact bracket is fixedly connected to the upper spring piece; a spring piece is fixedly connected between the moving contact piece and the upper spring piece, one end of the spring piece is fixedly connected to the middle top surface of the moving contact piece, and the other end of the spring piece is staggered from the middle of the moving contact piece and fixedly connected to the upper spring piece;

[0016] A second contact is riveted on the movable end of the fixed contact piece, the first contact and the second contact are arranged opposite to each other up and down, and the first contact and the second contact are electrically connected;

[0017] A linkage bolt is movably connected between the upper spring sheet and the bimetallic sheet. The linkage bolt is spindle-shaped. The upper end of the linkage bolt is movably inserted through the ends of the movable contact sheet and the free end of the upper spring sheet, and the lower end of the linkage bolt is movably inserted through the free end of the bimetallic sheet.

[0018] A first insulating magnetic ring is clamped on the porcelain core column between the fixed contact piece and the bimetal piece, and a second insulating magnetic ring is clamped on the porcelain core column between the bimetal piece and the heat conducting piece.

[0019] A pressing plate is buckled at the top end of the porcelain core column. The free end of the pressing plate is connected with a pressure regulator, and the pressure regulating terminal of the pressure regulator abuts against the upper spring piece.

[0020] A heat preservation shielding layer is arranged between the temperature sensing tube and the installation cylinder, and the heat preservation shielding layer is attached to the inner wall of the installation cylinder.

[0021] A hollow temperature sensing cavity is formed inside the temperature sensing tube, and a heat collecting material is filled in the temperature sensing cavity.

[0022] The thermal compensation temperature controller further includes a heating component sleeved on the temperature sensing tube; the heating component includes a spiral heating tube, a temperature sensor and an external heater.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. In a thermal compensation temperature controller of the present invention, it includes an upper connection piece, a lower connection piece, a porcelain core column, a temperature sensing component and a thermal compensation component. The upper and lower connection pieces are sleeved at intervals on the outer wall of the porcelain core column. The temperature sensing component is electrically connected to the upper and lower connection pieces. A porcelain column cavity is arranged inside the porcelain core column, and a temperature sensing tube is clamped in the porcelain column cavity. The temperature sensing tube is connected to the thermal compensation component through a wire; in application, the upper connection piece and the lower connection piece are arranged at intervals on the outer side wall of the porcelain core column. A temperature sensing component is arranged on the outer wall of the porcelain core column. The temperature sensing component is electrically connected to the upper connection piece and the lower connection piece. A thermal compensation component is arranged on the porcelain core column, and the thermal compensation component abuts against the temperature sensing component. The thermal compensation component can be used to realize the connection between the temperature sensing component and the heat source, and the set thermal compensation component can monitor the temperature rise of the heat source, heat the heat transfer part in the thermal compensation component, and after heating for a certain time, transfer the temperature of the heat source to the temperature sensing component to realize the synchronous temperature rise of the heat source and the bimetal piece. The temperature sensing tube is movably embedded in the porcelain core column through a clamping component, and the temperature sensing tube with different heat efficiencies can be replaced according to actual needs, saving costs and improving the flexibility of equipment use. Therefore, the present invention not only has a low assembly cost, but also has a high flexibility in use configuration.

[0025] 2. In a thermal compensation thermostat of the present invention, a chute is formed along the inner wall of the installation cylinder. At least two sets of clamping components are movably connected in the chute. Each clamping component includes a clamping piece and a slider. The clamping piece is arc-shaped, and sliders are fixedly connected to both ends of the arc. The sliders are embedded in the chute and movably connected. The outer arc end of the clamping piece abuts against the outer wall of the temperature sensing tube. When this design is applied, the temperature sensing tube is clamped in the clamping area formed by the clamping components. With at least two sets of clamping components provided, stable clamping ability can be provided for the temperature sensing tube, preventing the temperature sensing tube from shaking in the installation cylinder and affecting its actual use. Therefore, the present invention not only has flexible configuration but also has high assembly stability.

[0026] 3. In a thermal compensation thermostat of the present invention, a thermal insulation shielding layer is provided between the temperature sensing tube and the installation cylinder. The thermal insulation shielding layer is attached to the inner wall of the installation cylinder. A hollow temperature sensing cavity is formed inside the temperature sensing tube, and a heat collecting material is filled in the temperature sensing cavity. When this design is applied, after the temperature sensing tube is heated to the same temperature as the heat source, heat preservation treatment can be carried out on the temperature sensing tube to prevent its temperature from dropping sharply and affecting the triggering accuracy of the bimetal sheet. The heat collecting material can ensure that when the temperature sensing tube is heated, the temperature inside and outside it does not change violently, affecting the critical triggering accuracy of the bimetal sheet. Therefore, the present invention not only has stable temperature sensing effect but also has high temperature sensing accuracy. Brief Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the present invention.

[0028] Figure 2 is a schematic connection diagram of the temperature sensing component, thermal compensation component and clamping component in the present invention.

[0029] Figure 3 is a schematic structural diagram of the clamping component in the present invention.

[0030] Figure 4 is a schematic structural diagram of the heating component in the present invention.

[0031] Figure 5 is a schematic structural diagram when the temperature sensing tube in the present invention is cut open.

[0032] In the figure: pressure regulator 1, upper reed 2, upper terminal 3, lower terminal 4, porcelain core column 5, porcelain column cavity 51, clamping piece 6, slider 7, spiral heating tube 8, temperature sensor 81, external heater 82, temperature sensing tube 9, temperature sensing cavity 91, heat collecting material 92, mounting cylinder 10, fixed contact 11, heat conducting piece 12, spring piece 13, bimetallic strip 14, linkage bolt 15, moving contact 16, pressing plate 17, wire 18, heat preservation shielding layer 19, sliding groove 20, first insulating magnetic ring 21, second insulating magnetic ring 22, temperature sensing assembly 23, heat compensation assembly 24, clamping assembly 25, heating assembly 26, first contact 27, second contact 271, contact support 272. Detailed implementation mode

[0033] The present invention will be further described in detail below in conjunction with the attached drawings and specific implementation modes.

[0034] See Figure 1 — Figure 5 , a heat compensation temperature controller, the heat compensation temperature controller includes an upper terminal 3, a lower terminal 4, a porcelain core column 5, a temperature sensing assembly 23 and a heat compensation assembly 24; the upper terminal 3 and the lower terminal 4 are sleeved at intervals on the outer wall of the porcelain core column 5;

[0035] The temperature sensing assembly 23 includes an upper reed 2, a fixed contact 11 and a bimetallic strip 14;

[0036] The heat compensation assembly 24 includes a mounting cylinder 10, a wire 18 and a heat conducting piece 12, a porcelain column cavity 51 is opened at the bottom of the porcelain core column 5, and the mounting cylinder 10 is embedded on the inner wall of the porcelain column cavity 51; the heat conducting piece 12 is sleeved on the outer wall of the porcelain core column 5, and the heat conducting piece 12 is electrically connected to the bimetallic strip 14;

[0037] The temperature sensing tube 9 is movably connected in the mounting cylinder 10 through a clamping assembly 25, and the temperature sensing tube 9 is connected to the heat conducting piece 12 through a wire 18 inside the porcelain core column 5.

[0038] The upper terminal 3 is sleeved on the outer wall of the upper part of the porcelain core column 5, and the lower terminal 4 is sleeved on the outer wall of the middle part of the porcelain core column 5; the upper reed 2, the fixed contact 11 and the bimetallic strip 14 are all sleeved on the outer wall of the porcelain core column 5, the top surface of the fixed end of the upper reed 2 is electrically connected to the bottom surface of the upper terminal 3, and the end of the free end of the upper reed 2 extends outward in a stepped shape; the fixed contact 11 is arranged at intervals below the upper reed 2, and the bimetallic strip 14 is arranged at intervals below the fixed contact 11.

[0039] The heat conducting sheet 12 is located in the area between the lower terminal sheet 4 and the bimetallic strip 14. The top surface of the free end of the heat conducting sheet 12 is electrically connected to the bottom surface of the free end of the bimetallic strip 14. The bottom surface of the fixed end of the heat conducting sheet 12 is electrically connected to the top surface of the lower terminal sheet 4. The heat conducting sheet 12 is covered with a heat conducting material.

[0040] A slide groove 20 is provided inside the installation tube 10 along the inner wall of the installation tube 10, and at least two groups of clamping components 25 are movably connected inside the slide groove 20; the clamping component 25 includes a clamping piece 6 and a slider 7, and the clamping piece 6 is arc-shaped, and the sliders 7 are fixedly connected at both ends of the arc of the clamping piece 6. The slider 7 is embedded in the slide groove 20 and movably connected, and the outer arc end of the clamping piece 6 is in conflict with the outer wall of the temperature sensing tube 9.

[0041] A moving contact piece 16 is arranged below the upper spring piece 2, and a first contact 27 is riveted to one end of the moving contact piece 16 close to the porcelain core column 5, and one end of a contact bracket 272 is fixedly connected to the first contact 27, and the other end of the contact bracket 272 is fixedly connected to the upper spring piece 2; a spring piece 13 is fixedly connected between the moving contact piece 16 and the upper spring piece 2, and one end of the spring piece 13 is fixedly connected to the middle top surface of the moving contact piece 16, and the other end of the spring piece 13 is staggered from the middle of the moving contact piece 16 and fixedly connected to the upper spring piece 2;

[0042] A second contact 271 is riveted on the movable end of the fixed contact piece 11, the first contact 27 and the second contact 271 are arranged opposite to each other up and down, and the first contact 27 and the second contact 271 are electrically connected;

[0043] A linkage bolt 15 is movably connected between the upper spring piece 2 and the bimetallic strip 14. The linkage bolt 15 is spindle-shaped. The upper end of the linkage bolt 15 is movably inserted into the end of the movable contact piece 16 and the free end of the upper spring piece 2, and the lower end of the linkage bolt 15 is movably inserted into the free end of the bimetallic strip 14.

[0044] A first insulating magnetic ring 21 is sandwiched on the porcelain core column 5 between the fixed contact piece 11 and the bimetallic strip 14 , and a second insulating magnetic ring 22 is sandwiched on the porcelain core column 5 between the bimetallic strip 14 and the heat conducting sheet 12 .

[0045] A pressure plate 17 is clamped on the top end of the ceramic core column 5 , and a pressure regulator 1 is connected to the free end of the pressure plate 17 . The pressure regulating terminal of the pressure regulator 1 abuts against the upper spring sheet 2 .

[0046] A heat-insulating shielding layer 19 is disposed between the temperature-sensing tube 9 and the installation tube 10 , and the heat-insulating shielding layer 19 is attached to the inner wall of the installation tube 10 .

[0047] A hollow temperature sensing cavity 91 is formed inside the temperature sensing tube 9 , and the temperature sensing cavity 91 is filled with heat collecting material 92 .

[0048] The thermal compensation thermostat further includes a heating component 26 sleeved on the temperature sensing tube 9; the heating component 26 includes a spiral heating tube 8, a temperature sensor 81 and an external heater 82.

[0049] The principle of the present invention is described as follows:

[0050] In the present invention, the upper spring piece 2, the moving contact piece 16, the fixed contact piece 11, the bimetal piece 14 and the heat conducting piece 12 in the temperature sensing component sequentially form an on-off circuit between the upper and lower connection pieces. The bimetal piece 14 receives the temperature rise of the external heat source through the porcelain core column 5. At the same time, the heat generated by the heat conducting piece 12 directly heats and compensates the bimetal piece 14. When the bimetal piece 14 reaches the critical temperature value, it deforms, pushes the linkage bolt 15 and the free end of the upper spring piece 2, thereby cutting off the contact electrical connection state between the moving contact piece 16 and the fixed contact piece 11. At this time, the main circuit in the thermostat and the circuit of the external heat source are cut off. Then, the temperature of the bimetal piece 14 drops with the external heat source, and the bimetal piece 14 deforms again and returns to the initial state. The upper spring piece 2 drives the moving contact piece 16 to achieve the contact and connection state with the fixed contact piece 11. The provided heating component 26 can heat the temperature sensing tube 9 to the same temperature as the heat source according to the temperature change of the heat source, avoiding the asynchronous temperature rise between the heat source and the bimetal piece 14, and avoiding the hysteresis when the bimetal piece 14 is critically triggered, so as to improve the accuracy and sensitivity of the device.

[0051] Embodiment 1:

[0052] See Figures 1 - 5 , a thermal compensation thermostat, the thermal compensation thermostat includes an upper connection piece 3, a lower connection piece 4, a porcelain core column 5 (preferably a hollow cylindrical cylinder), a temperature sensing component 23 and a thermal compensation component 24; the upper connection piece 3 and the lower connection piece 4 are sleeved on the outer wall of the porcelain core column 5 at intervals; the temperature sensing component 23 includes an upper spring piece 2, a fixed contact piece 11 and a bimetal piece 14; the thermal compensation component 24 includes an installation cylinder 10, a wire 18 and a heat conducting piece 12 (preferably a top and bottom metal material with a mica sheet sandwiched in the middle), a porcelain column cavity 51 is opened at the bottom of the porcelain core column 5, and the installation cylinder 10 is embedded on the inner wall of the porcelain column cavity 51; the heat conducting piece 12 is sleeved on the outer wall of the porcelain core column 5, and the heat conducting piece 12 is electrically connected to the bimetal piece 14; a temperature sensing tube 9 (preferably with heat collecting material inside) is movably connected in the installation cylinder 10 through a clamping component 25, and the temperature sensing tube 9 is connected to the heat conducting piece 12 through a wire 18 (preferably a material with good heat conduction performance such as copper wire or silver wire) inside the porcelain core column 5.

[0053] During application, a conduction-breaking circuit is formed between the upper and lower connection pieces. The bimetallic strip 14 receives the temperature rise of the external heat source through the porcelain core column 5. The temperature sensor detects the temperature of the heating source. The external heater heats the temperature sensing tube 9 to synchronize its temperature with that of the heat source. The temperature sensing tube 9 transfers heat to the heat conducting piece 12 through a wire. The heat generated by the heat conducting piece 12 directly compensates the heating of the bimetallic strip 14. When the bimetallic strip 14 reaches the critical temperature value, it deforms, pushing the linkage bolt 15 and the free end of the upper spring piece 2, thereby cutting off the contact electrical connection state between the moving contact piece 16 and the fixed contact piece 11. At this time, the main circuit inside the temperature controller and the circuit of the external heat source are cut off. Then, the temperature of the bimetallic strip 14 decreases with the external heat source, and the bimetallic strip 14 deforms again and returns to its initial state. The upper spring piece 2 drives the moving contact piece 11 to achieve the contact connection state with the fixed contact piece 11, and the circuit returns to normal. The temperature sensing tube 9 is movably connected through the clamping assembly 25. After long-term use of the temperature sensing tube 9, a new temperature sensing tube can be replaced; or a temperature sensing tube 9 with different thermal efficiencies can be replaced according to needs, increasing the scope of use of this device.

[0054] Embodiment 2:

[0055] The basic content is the same as that of Embodiment 1, and the differences are as follows:

[0056] The upper connection piece 3 is sleeved on the outer wall of the upper part of the porcelain core column 5, and the lower connection piece 4 is sleeved on the outer wall of the middle part of the porcelain core column 5; the upper spring piece 2, the fixed contact piece 11 and the bimetallic strip 14 are all sleeved on the outer wall of the porcelain core column 5. The top surface of the fixed end of the upper spring piece 2 is electrically connected to the bottom surface of the upper connection piece 3, and the end of the free end of the upper spring piece 2 extends outward in a stepped shape; the fixed contact piece 11 is arranged at intervals below the upper spring piece 2, and the bimetallic strip 14 is arranged at intervals below the fixed contact piece 11; the heat conducting piece 12 is located in the area between the lower connection piece 4 and the bimetallic strip 14. The top surface of the free end of the heat conducting piece 12 is electrically connected to the bottom surface of the free end of the bimetallic strip 14, and the bottom surface of the fixed end of the heat conducting piece 12 is electrically connected to the top surface of the lower connection piece 4. A heat conducting material (preferably graphite) is covered (preferably by spraying or electroplating) on the heat conducting piece 12.

[0057] During application, the heat conducting piece 12 compensates the heat of the bimetallic strip 14, and the heat conducting material covered on the heat conducting piece 12 can improve the efficiency of heat conduction.

[0058] Embodiment 3:

[0059] The basic content is the same as that of Embodiment 2, and the differences are as follows:

[0060] Inside the installation cylinder 10, a chute 20 is formed along the inner wall of the installation cylinder 10, and at least two groups of clamping components 25 are movably connected in the chute 20; the clamping component 25 includes a clamping piece 6 and a slider 7. The clamping piece 6 (preferably an elastic reed piece) is arc-shaped. Both arc-shaped ends of the clamping piece 6 (preferably made of metal or plastic) are fixedly connected with a slider 7. The slider 7 is embedded in the chute 20 and is movably connected, and the outer arc end of the clamping piece 6 abuts against the outer wall of the temperature sensing tube 9.

[0061] During application, through the cooperation of the clamping piece 6 and the slider 7, it can adapt to temperature sensing tubes of different diameters, and the arc-shaped clamping piece is more firmly connected to the outer wall of the temperature sensing tube, thereby improving the use stability of the temperature sensing tube.

[0062] Embodiment 4:

[0063] The basic content is the same as that of Embodiment 1, and the difference lies in:

[0064] A heat insulation shielding layer 19 (preferably a rolled insulating heat insulation paper) is provided between the temperature sensing tube 9 and the installation cylinder 10, and the heat insulation shielding layer 19 is attached to the inner wall of the installation cylinder 10.

[0065] During application, the heat insulation shielding layer 19 can isolate heat and reduce heat loss, enabling the temperature of the temperature sensing tube to rise more rapidly. After the heat reaches a certain level, it can maintain the temperature stability and prevent the temperature of the temperature sensing tube from dropping too fast.

[0066] Embodiment 5:

[0067] The basic content is the same as that of Embodiment 1, and the difference lies in:

[0068] The thermal compensation temperature controller further includes a heating component 26 sleeved on the temperature sensing tube 9; the heating component 26 includes a spiral heating tube 8, a temperature sensor 81 and an external heater 82; a temperature sensor 81 is fixedly arranged inside the external heater 82, the spiral heating tube 8 is sleeved on the outer wall of the temperature sensing tube 9, the external heater 82 is sleeved on the spiral heating tube 8, the top surface of the external heater 82 is in contact with the bottom surface of the porcelain core column 5, and a part of the tube body of the temperature sensing tube 9 is located inside the cavity of the external heater 82.

[0069] During application, the spiral heating tube 8 is sleeved outside the temperature sensing tube, and the external heater heats the spiral heating tube, thereby heating the temperature sensing tube. The temperature sensor can detect the degree of temperature rise and ensure the synchronous temperature rise between the bimetal and the heat source.

[0070] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modification or change made by those of ordinary skill in the art according to the disclosed content of the present invention shall be included in the protection scope recorded in the claims.

Claims

1. A thermal compensation thermostat, characterized in that: The thermal compensation temperature controller includes an upper connection piece (3), a lower connection piece (4), a porcelain core column (5), a temperature sensing component (23) and a thermal compensation component (24); the upper connection piece (3) and the lower connection piece (4) are sleeved on the outer wall of the porcelain core column (5) at intervals; The temperature sensing component (23) includes an upper reed (2), a fixed contact piece (11) and a bimetallic strip (14); The thermal compensation component (24) includes an installation cylinder (10), a wire (18) and a heat conducting piece (12). A porcelain column cavity (51) is formed at the bottom of the porcelain core column (5), and the installation cylinder (10) is embedded on the inner wall of the porcelain column cavity (51); the heat conducting piece (12) is sleeved on the outer wall of the porcelain core column (5), and the heat conducting piece (12) is electrically connected to the bimetallic strip (14); A temperature sensing tube (9) is movably connected in the installation cylinder (10) through a clamping component (25), and the temperature sensing tube (9) is connected to the heat conducting piece (12) through a wire (18) inside the porcelain core column (5); A heat preservation shielding layer (19) is arranged between the temperature sensing tube (9) and the installation cylinder (10), and the heat preservation shielding layer (19) is attached to the inner wall of the installation cylinder (10); The thermal compensation temperature controller further includes a heating component (26) sleeved on the temperature sensing tube (9); the heating component (26) includes a spiral heating tube (8), a temperature sensor (81) and an external heater (82); The temperature sensor (81) is fixedly arranged inside the external heater (82), the spiral heating tube (8) is sleeved on the outer wall of the temperature sensing tube (9), the external heater (82) is sleeved on the spiral heating tube (8), the top surface of the external heater (82) is in contact with the bottom surface of the porcelain core column (5), and a part of the tube body of the temperature sensing tube (9) is located inside the cavity of the external heater (82); Inside the installation cylinder (10), a chute (20) is formed along the inner wall of the installation cylinder (10), and at least two groups of clamping components (25) are movably connected in the chute (20); the clamping component (25) includes a clamping piece (6) and a sliding block (7), the clamping piece (6) is arc-shaped, both arc-shaped ends of the clamping piece (6) are fixedly connected with the sliding block (7), the sliding block (7) is embedded in the chute (20) for movable connection, and the outer arc end of the clamping piece (6) abuts against the outer wall of the temperature sensing tube (9).

2. A thermal compensation temperature controller according to claim 1, wherein: The upper connection piece (3) is sleeved on the outer wall of the upper part of the porcelain core column (5), and the lower connection piece (4) is sleeved on the outer wall of the middle part of the porcelain core column (5); the upper reed (2), the fixed contact piece (11) and the bimetallic strip (14) are all sleeved on the outer wall of the porcelain core column (5). The top surface of the fixed end of the upper reed (2) is electrically connected to the bottom surface of the upper connection piece (3), and the end of the free end of the upper reed (2) extends outward in a stepped shape; the fixed contact piece (11) is arranged at intervals below the upper reed (2), and the bimetallic strip (14) is arranged at intervals below the fixed contact piece (11).

3. A thermal compensation temperature controller according to claim 2, wherein: The heat conducting sheet (12) is located in a region between the lower connecting sheet (4) and the bimetallic sheet (14); the top surface of the free end of the heat conducting sheet (12) is electrically connected to the bottom surface of the free end of the bimetallic sheet (14); the bottom surface of the fixed end of the heat conducting sheet (12) is electrically connected to the top surface of the lower connecting sheet (4); and the heat conducting sheet (12) is covered with a heat conducting material.

4. A thermal compensation thermostat according to claim 3, characterized in that: A moving contact piece (16) is arranged below the upper spring piece (2), and a first contact (27) is riveted to one end of the moving contact piece (16) close to the porcelain core column (5), and the first contact (27) is fixedly connected to one end of a contact bracket (272), and the other end of the contact bracket (272) is fixedly connected to the upper spring piece (2); a spring piece (13) is fixedly connected between the moving contact piece (16) and the upper spring piece (2), and one end of the spring piece (13) is fixedly connected to the middle top surface of the moving contact piece (16), and the other end of the spring piece (13) is staggered from the middle of the moving contact piece (16) and fixedly connected to the upper spring piece (2); A second contact (271) is riveted on the movable end of the fixed contact piece (11), the first contact (27) and the second contact (271) are arranged opposite to each other up and down, and the first contact (27) and the second contact (271) are electrically connected; A linkage bolt (15) is movably connected between the upper spring sheet (2) and the bimetallic sheet (14). The linkage bolt (15) is spindle-shaped. The upper end of the linkage bolt (15) is movably inserted through the ends of the movable contact sheet (16) and the free end of the upper spring sheet (2), and the lower end of the linkage bolt (15) is movably inserted through the free end of the bimetallic sheet (14).

5. A thermal compensation thermostat according to claim 1, characterized in that: A first insulating magnetic ring (21) is sandwiched on the porcelain core column (5) between the fixed contact piece (11) and the bimetallic strip (14), and a second insulating magnetic ring (22) is sandwiched on the porcelain core column (5) between the bimetallic strip (14) and the heat conducting sheet (12).

6. A thermal compensation thermostat according to claim 1, characterized in that: A pressure plate (17) is buckled at the top end of the porcelain core column (5); a free end of the pressure plate (17) is connected to a pressure regulator (1); and a pressure regulating terminal of the pressure regulator (1) abuts against an upper spring sheet (2).

7. A thermal compensation thermostat according to claim 1, characterized in that: A hollow temperature sensing cavity (91) is formed inside the temperature sensing tube (9), and the temperature sensing cavity (91) is filled with heat collecting material (92).

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