Temperature controller with heat dissipation structure

Abstract

The present application relates to the technical field of temperature controller, and particularly relates to a temperature controller with a heat dissipation structure, comprising: a mounting plate, a temperature controller instrument and a shielding assembly. The shielding assembly provides physical isolation and sealing protection for the temperature controller instrument, effectively resists the influence of external harsh environment, and guarantees normal operation. When the external environment temperature rises to a preset value, the shielding assembly can rotate in a preset direction in one direction, actively adjusting the exposed orientation of its outer surface, thereby avoiding local aging and performance degradation of the shielding assembly due to long-term unilateral exposure to sunlight, rain, salt spray and other directional erosion, and further improving the sealing reliability and durability of the temperature controller instrument in long-term operation in complex outdoor environments.

Description

Technical Field

[0001] This invention relates to the field of thermostat technology, and in particular to a thermostat with a heat dissipation structure. Background Technology

[0002] Transformer temperature controllers are critical measuring and protection devices for monitoring transformer oil temperature and ensuring the safe and stable operation of power equipment. They reflect the internal temperature status of the transformer in real time through both mechanical pointers and electrical signals, and issue alarms or activate the cooling system when the temperature exceeds the limit. With the development of the energy and power industry, the application scenarios of transformers are constantly expanding, from traditional indoor power plants to more complex and demanding outdoor environments such as wind power generation, offshore platforms, photovoltaic power plants, hot and humid regions, and industrial sites. These scenarios are typically accompanied by strong ultraviolet radiation, significant diurnal temperature variations, high humidity, salt spray corrosion, and direct exposure to rain, snow, and sandstorms, placing extremely high demands on the environmental adaptability and long-term reliability of transformer temperature controllers that are exposed to the elements.

[0003] To cope with harsh environments, the industry has continuously improved the protection technology of thermostats. Early protection approaches mainly focused on static sealing and physical isolation, such as using thickened, weather-resistant dial materials, installing rubber sealing rings at the junctions of the thermostat and adding a protective box or rain shelter to the entire thermostat. The mechanical indicating part is usually isolated from the external environment through a sealed transparent viewing window, achieving good protection. However, the protection of electrical signal parts, which must be led out of the internal electrical component contacts to external terminals through wires, remains a challenge. The interface between the junction box and the thermostat body, the gaps in the box cover, and the holes reserved for wiring can all become pathways for environmental media to intrude.

[0004] A significant problem has emerged in current mainstream thermostats during long-term operation: the static sealing structure, after prolonged exposure to sunlight, rain, and salt spray corrosion on one side, is prone to localized aging and cracking, leading to a gradual decline in sealing performance. This problem is concentrated in critical areas such as the junction between the dial and the body, and the sealing surface of the cover. Moisture and rainwater can then penetrate through these areas, causing internal electrical components to become damp and metal contacts to corrode. This results in increased contact resistance, signal distortion, false alarms, or control failure. In severe cases, the thermostat may completely fail, not only losing its protective function for the transformer but also incurring high maintenance costs and significant operational risks. Summary of the Invention

[0005] Therefore, it is necessary to provide a temperature controller with a heat dissipation structure to address the problem of long-term unilateral corrosion of the sealing structure in current temperature controllers, which leads to a decline in sealing performance.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A temperature controller with a heat dissipation structure includes:

[0008] Mounting plate;

[0009] A temperature controller instrument, which is fixedly mounted on the mounting plate;

[0010] A shielding assembly is used to seal and protect the temperature controller instrument; when the temperature of the external environment changes, the shielding assembly can rotate unidirectionally in a preset direction to adjust the exposure position of the outer surface of the shielding assembly.

[0011] Furthermore, the shielding assembly includes a shielding frame, which is coaxially rotatably connected to the mounting plate, and the shielding frame is sleeved on the outside of the temperature controller instrument.

[0012] Furthermore, the shielding frame has multiple sets of first sealing chambers, which are evenly spaced within the shielding frame and are connected to adjacent first sealing chambers; each set of first sealing chambers is provided with a first piston, which is slidably connected to the shielding frame; one end of the first piston is fixedly connected to a spring; the first sealing chamber contains a thermosensitive medium, which can push the first piston to slide when the temperature of the external environment changes, and the spring can deform.

[0013] Furthermore, the shielding assembly also includes a driving unit. The shielding frame contains multiple sets of first counterweight chambers and multiple sets of second counterweight chambers, which are evenly and alternately distributed around the central axis of the shielding frame. Adjacent first and second counterweight chambers are connected. A one-way valve is provided between adjacent first and second counterweight chambers. Each set of first counterweight chambers contains a high-density medium, with the volume of the high-density medium in one set of first counterweight chambers being higher than the volume of the high-density medium in the other first counterweight chambers. The driving unit drives the high-density medium to flow between adjacent first and second counterweight chambers. The one-way valve allows the high-density medium to flow in one direction.

[0014] Furthermore, the driving unit includes multiple magnetic components, each of which is slidably connected to the shielding frame; a first counterweight piston is disposed in the first counterweight cavity, and the first counterweight piston can slide along the axial direction of the shielding frame; a second counterweight piston is fixedly disposed on each of the magnetic components, and each second counterweight piston is slidably disposed inside the second counterweight cavity, and the second counterweight piston can slide along the axial direction of the shielding frame.

[0015] Furthermore, a first retaining ring is fixedly disposed in the first counterweight cavity, the first retaining ring being used to restrict the axial sliding of the first counterweight piston; a second retaining ring is fixedly disposed in the second counterweight cavity, the second retaining ring being used to restrict the axial sliding of the second counterweight piston.

[0016] Furthermore, the shielding assembly also includes a movable cover plate and a heat dissipation assembly. The movable cover plate is slidably connected to the shielding frame. Each set of first sealed chambers is provided with a second piston. The second piston is fixedly connected to the movable cover plate. The second piston can slide along the axial direction of the shielding frame. One end of the second piston is fixedly connected to the spring. When the second piston drives the movable cover plate to slide, the heat dissipation assembly can dissipate heat from the temperature controller instrument.

[0017] Furthermore, the heat dissipation assembly includes a heat dissipation plate, a heat dissipation groove is provided on the shielding frame, the heat dissipation plate is disposed in the heat dissipation groove, and the heat dissipation plate is rotatably connected to the shielding frame; a rotating shaft is fixedly provided on the heat dissipation plate, a spiral groove is provided on the rotating shaft, and a protrusion is fixedly provided in the movable cover plate; when the movable cover plate slides, the protrusion cooperates with the spiral groove to drive the heat dissipation plate to rotate axially around the rotating shaft.

[0018] Furthermore, a third retaining ring is fixedly disposed in the first sealed chamber, the third retaining ring being used to restrict the axial sliding of the second piston.

[0019] Furthermore, the heat sink is configured as multiple units.

[0020] The beneficial effects of this invention are:

[0021] This invention provides a temperature controller with a heat dissipation structure, comprising: a mounting plate, a temperature controller instrument, and a shielding assembly. The mounting plate is vertically fixed to a transformer. The temperature controller instrument is fixedly positioned in the center of the mounting plate, used to reflect the internal temperature status of the transformer in real time, and to issue an alarm or activate the cooling system when the temperature exceeds the limit. The shielding assembly provides physical isolation and sealing protection for the temperature controller instrument, effectively resisting the influence of harsh external environments and ensuring its normal operation. Furthermore, when the external ambient temperature rises to a preset value, the shielding assembly can rotate unidirectionally in a preset direction, actively adjusting the exposure position of its outer surface, thereby preventing localized aging and performance degradation caused by long-term unilateral exposure to sunlight, rain, salt spray, and other directional corrosion. Furthermore, when the external temperature continues to rise, the shielding assembly faces the lateral airflow with its maximum windward area, increasing the heat dissipation area and thus forcibly dissipating heat from the temperature controller instrument, thereby improving the sealing reliability and durability of the temperature controller instrument during long-term operation in complex outdoor environments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall installation of a temperature controller with a heat dissipation structure according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 Side view;

[0024] Figure 3 for Figure 2 A sectional view along section AA;

[0025] Figure 4 for Figure 2 A sectional view along section BB;

[0026] Figure 5 for Figure 1 The front view;

[0027] Figure 6 for Figure 5 A sectional view along section EE;

[0028] Figure 7 for Figure 6 A magnified view of a portion of point X in the middle;

[0029] Figure 8 for Figure 1 A schematic diagram of the decomposition process;

[0030] Figure 9 for Figure 8 A schematic diagram of the structure of the central shading component;

[0031] Figure 10 for Figure 1 A schematic diagram of the structure of the central shielding frame before rotation;

[0032] Figure 11 for Figure 1 A schematic diagram of the structure of the central shielding frame after rotation;

[0033] Figure 12 for Figure 8 A schematic diagram of the heat sink structure.

[0034] in:

[0035] 101. Mounting plate; 102. Rotary ring; 103. Annular groove;

[0036] 201. Shielding frame; 202. First sealed chamber; 203. First piston; 204. Spring; 221. First counterweight chamber; 222. Second counterweight chamber; 223. Second counterweight piston; 224. Second retaining ring; 231. Magnetic component; 232. One-way valve; 241. Fin; 251. Rotating groove; 252. Heat dissipation groove;

[0037] 301. Movable cover plate; 302. Mechanical door; 303. Observation window; 311. Second piston; 312. Third retaining ring;

[0038] 401. Heat sink; 402. Connecting shaft; 403. Rotating shaft; 404. Spiral groove;

[0039] 500. Temperature controller instrument. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0041] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] The following reference Figures 1 to 12This invention describes a temperature controller with a heat dissipation structure. The temperature controller includes a mounting plate 101 and a temperature controller instrument 500, wherein the mounting plate 101 is fixedly mounted vertically on a transformer. The temperature controller instrument 500 is fixedly disposed in the middle of the mounting plate 101, reflecting the internal temperature status of the transformer in real time via a temperature sensing wire, and issuing an alarm or activating the cooling system when the temperature exceeds the limit. The temperature controller also includes a shielding component, which provides physical isolation and sealing protection for the temperature controller instrument 500, effectively resisting the influence of harsh external environments and ensuring its normal operation. When the external ambient temperature rises to a preset value, the shielding component can rotate unidirectionally in a preset direction, actively adjusting the exposure position of its outer surface, thereby preventing local aging and performance degradation of the shielding component due to long-term unilateral exposure to sunlight, rain, salt spray, and other directional corrosion, thus improving the sealing reliability and durability of the temperature controller instrument 500 during long-term operation in complex outdoor environments.

[0044] In one embodiment, the shielding assembly includes a shielding frame 201. A rotating ring 102 is coaxially fixed on the mounting plate 101, and the rotating ring 102 is sleeved on the outside of the temperature controller instrument 500. An annular groove 103 is formed on the rotating ring 102. The shielding frame 201 has a rectangular structure and is coaxially rotatably connected to the rotating ring 102 through the annular groove 103. When the external ambient temperature rises, the shielding frame 201 can rotate around the axial direction of the rotating ring 102 to adjust the exposure position of its outer surface.

[0045] In one embodiment, the shielding frame 201 has multiple sets of first sealing chambers 202, which are evenly spaced within the shielding frame 201 and located at four diagonal positions, with adjacent first sealing chambers 202 connected. Each set of first sealing chambers 202 contains a first piston 203, which is slidably connected to the shielding frame 201. One end of the first piston 203 is fixedly connected to a spring 204, which is initially in a stretched state. The first sealing chamber 202 contains a thermosensitive medium, which is distributed on the left side of the first sealing chamber 202. Figure 7 The left and right directions within the [thermally]. Specifically, when the external ambient temperature rises to a preset value, the thermosensitive medium expands due to heat, driving the first piston 203 to slide to the right, i.e. Figure 7 The left-right direction allows spring 204 to gradually return to its original length from its stretched state. It is worth noting that the heat-sensitive medium can be paraffin wax, expanding oil, or similar media.

[0046] In one embodiment, the shielding assembly further includes a driving unit, and the shielding frame 201 also has multiple sets of first counterweight cavities 221 and multiple sets of second counterweight cavities 222. The multiple sets of first counterweight cavities 221 and multiple sets of second counterweight cavities 222 are evenly and alternately distributed around the central axis of the shielding frame 201. The multiple sets of first counterweight cavities 221 are respectively located at the center of the four outer walls of the shielding frame 201, and the multiple sets of second counterweight cavities 222 are respectively located at the four diagonal positions of the shielding frame 201. Adjacent first counterweight cavities 221 and second counterweight cavities 222 are connected. Each set of first counterweight cavities 221 contains a high-density medium, such as... Figure 10 The initial installation position shown has the highest concentration of high-density medium in the first counterweight chamber 221 at the bottom of the shielding frame 201, making it the center of gravity of the shielding frame 201. Furthermore, a one-way valve 232 is installed between the adjacent first counterweight chamber 221 and second counterweight chamber 222. The one-way valve 232 allows the high-density medium to flow counterclockwise, i.e. Figure 7 The clockwise and counterclockwise directions are as follows. Therefore, as the spring 204 gradually returns to its original length from the stretched state, the drive unit can cause the high-density medium to flow from the current first counterweight cavity 221 to the adjacent second counterweight cavity 222, thereby changing the center of gravity of the entire shield 201. This causes the shield 201 to rotate 45 degrees clockwise around the axis of the rotating ring 102 to adjust the exposure orientation of its outer surface.

[0047] In one embodiment, the driving unit includes a plurality of magnetic elements 231, which are located at four diagonal positions of the shielding frame 201, and each magnetic element 231 is slidably connected to the shielding frame 201. A first counterweight piston is disposed in the first counterweight cavity 221, and the first counterweight piston is slidable along the axial direction of the shielding frame 201. A second counterweight piston 223 is fixedly disposed on each magnetic element 231, and each second counterweight piston 223 is slidably disposed inside the second counterweight cavity 222, and the second counterweight piston 223 is slidable along the axial direction of the shielding frame 201.

[0048] Furthermore, a first retaining ring is fixedly disposed at a distance from the bottom end near the first counterweight chamber 221. The first retaining ring has an opening that penetrates itself and is used to restrict the axial sliding of the first counterweight piston. A second retaining ring 224 is fixedly disposed at a distance from the bottom end near the second counterweight chamber 222. The second retaining ring 224 has an opening that penetrates itself and is used to restrict the axial sliding of the second counterweight piston 223. Specifically, as shown... Figure 10 As shown in the initial installation position, the first counterweight cavity 221 at the bottom of the shield 201 contains the most high-density medium. The first counterweight piston inside is pushed upward to the top of the first counterweight cavity 221 by the high-density medium, while the pistons in other first counterweight cavities 221 remain near the first retaining ring due to the lack of high-density medium.

[0049] When the ambient temperature rises to a preset value, the expansion of the thermosensitive medium pushes the first piston 203 to the right, i.e. Figure 7 In the left-right direction, spring 204 gradually returns to its original length. During this process, the first piston 203 drives the magnetic component 231 to slide through magnetic attraction, which in turn drives the second counterweight piston 223 to slide synchronously, causing negative pressure to be generated in the corresponding second counterweight chamber 222. Since the one-way valve 232 only allows high-density media to flow in the counterclockwise direction, i.e. Figure 10 The counterclockwise and clockwise directions; and except for the bottom first counterweight chamber 221, the first counterweight pistons in the other first counterweight chambers 221 have no significant displacement space due to insufficient high-density medium. Therefore, only the high-density medium in the bottom first counterweight chamber 221 can be effectively drawn into the adjacent second counterweight chamber 222 on the right, that is... Figure 10 The left and right directions within the center cause the center of gravity of the barrier frame 201 to shift, thereby driving the entire barrier frame 201 to rotate stably 45 degrees clockwise. Figure 11 The state shown is that the shielding frame 201 is transformed into a rhomboid state, realizing a controllable directional attitude adjustment triggered by temperature.

[0050] When the ambient temperature decreases, the thermosensitive medium contracts, causing the second counterweight piston 223 to slide. This pushes the high-density medium in the current second counterweight chamber 222 counterclockwise into the adjacent next first counterweight chamber 221. During this process, the overall center of gravity of the shielding frame 201 shifts again, rotating clockwise in one direction. The entire shielding frame 201 will then... Figure 11 Restore to Figure 10 This allows the shielding bracket 201 to switch the orientation of its outer surface during temperature rise and fall cycles, thus preventing any side from aging faster due to long-term fixed exposure and effectively ensuring the long-term reliability and service life of the sealing structure in harsh outdoor environments. It is worth noting that high-density media can include mercury, high-density alloy particles, etc.

[0051] In one embodiment, the shielding assembly further includes a movable cover plate 301 and a heat dissipation assembly, with the movable cover plate 301 slidably connected to the shielding frame 201. Each set of first sealed chambers 202 is equipped with a second piston 311, which is fixedly connected to the movable cover plate 301 and can slide along the axial direction of the shielding frame 201. One end of the second piston 311 is fixedly connected to a spring 204. Specifically, when the external temperature continues to rise and exceeds a preset value, the thermosensitive medium further expands, pushing the first piston 203 to continue sliding, causing the spring 204 to enter the compression stage from its original length. The compressive force of the spring 204 further acts on the second piston 311, causing the movable cover plate 301 to slide outward along the axial direction, extending outward relative to the shielding frame 201, thereby allowing the heat dissipation assembly to dissipate heat from the temperature controller instrument 500.

[0052] In one embodiment, the heat dissipation assembly includes a heat dissipation plate 401. A heat dissipation groove 252 penetrating the side wall of the shield 201 is provided for communicating with the external environment and the internal space of the shield 201. The heat dissipation plate 401 is installed within the heat dissipation groove 252, and a rotating groove 251 is provided at the location of the heat dissipation groove 252. A connecting shaft 402 is fixedly provided at one end of the heat dissipation plate 401, and the connecting shaft 402 is installed within the rotating groove 251, enabling a rotatable connection between the heat dissipation plate 401 and the shield 201. A rotating shaft 403 is fixedly provided at the other end of the heat dissipation plate 401, and a spiral groove 404 is provided on the rotating shaft 403. Simultaneously, a protrusion that mates with the spiral groove 404 is fixedly provided within the movable cover plate 301. Specifically, when the movable cover plate 301 slides outward along the axial direction, the protrusion mates with the spiral groove 404. Due to the guiding structure of the spiral groove 404, the heat sink 401 can rotate around the axial direction of the rotating shaft 403, thereby opening the heat sink 252. At the same time, the shield 201 is converted into a diamond shape, facing the lateral airflow with the largest frontal area. External air can flow in through the heat sink 252, flow over the surface of the temperature controller instrument 500 and carry away the accumulated heat, achieving efficient convection heat dissipation, thereby effectively ensuring the stable operation of the temperature controller instrument 500 in high-temperature environments.

[0053] In particular, multiple fins 241 are evenly fixed on the four diagonal outer sides of the shield 201 to enhance the heat dissipation effect.

[0054] Furthermore, an observation window 303 is provided on the movable cover 301, penetrating the cover. A mechanical door 302, rotatably connected to the movable cover 301, is installed on the observation window 303. This door is used to open or close the observation window 303 as needed to observe the real-time readings of the thermostat instrument 500. The mechanical door 302 is equipped with a sealing structure. When closed, it fits tightly against the frame of the observation window 303, forming an effective sealing interface. This prevents external moisture and dust from entering, ensuring clear visibility of the internal thermostat instrument 500 and the stability of its long-term operating environment.

[0055] In one embodiment, a third retaining ring 312 is coaxially fixed in the first sealed chamber 202. The third retaining ring 312 is used to restrict the axial sliding of the second piston 311 to ensure the accuracy and reliability of the axial sliding of the movable cover plate 301.

[0056] In one embodiment, multiple heat sinks 401 are provided. It is understood that heat dissipation slots 252 penetrating the shield 201 are provided on all four side walls of the shield 201. The multiple heat dissipation slots 252 are evenly distributed around the circumference. Each heat sink 401 is installed in the corresponding heat dissipation slot 252 through a rotating shaft 403, which increases the effective heat dissipation area and enhances the heat dissipation effect.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A temperature controller with a heat dissipation structure, characterized in that, include: Mounting plate; A temperature controller instrument, which is fixedly mounted on the mounting plate; A shielding assembly for sealing and protecting the temperature controller instrument; When the temperature of the external environment changes, the shielding component can rotate unidirectionally in a preset direction to adjust the exposure position of the outer surface of the shielding component; The shielding assembly includes a shielding frame, which is coaxially rotatably connected to the mounting plate, and the shielding frame is sleeved on the outside of the temperature controller instrument; The shielding frame has multiple sets of first sealing chambers, which are evenly spaced within the shielding frame and are connected to adjacent first sealing chambers. Each set of first sealing chambers is equipped with a first piston, which is slidably connected to the shielding frame. A spring is fixedly connected to one end of the first piston. The first sealing chamber contains a thermosensitive medium. When the temperature of the external environment changes, the thermosensitive medium can push the first piston to slide, and the spring can deform.

2. The temperature controller with a heat dissipation structure according to claim 1, characterized in that, The shielding assembly further includes a driving unit. The shielding frame contains multiple sets of first counterweight chambers and multiple sets of second counterweight chambers, which are evenly and alternately distributed around the central axis of the shielding frame. Adjacent first and second counterweight chambers are connected. A one-way valve is provided between adjacent first and second counterweight chambers. Each set of first counterweight chambers contains a high-density medium, with the volume of the high-density medium in one set of first counterweight chambers being higher than the volume of the high-density medium in the other first counterweight chambers. The driving unit drives the high-density medium to flow between adjacent first and second counterweight chambers. The one-way valve allows the high-density medium to flow in one direction.

3. The temperature controller with a heat dissipation structure according to claim 2, characterized in that, The driving unit includes multiple magnetic components, each of which is slidably connected to the shielding frame; a first counterweight piston is disposed in the first counterweight cavity, and the first counterweight piston can slide along the axial direction of the shielding frame; a second counterweight piston is fixedly disposed on each of the magnetic components, and each second counterweight piston is slidably disposed inside the second counterweight cavity, and the second counterweight piston can slide along the axial direction of the shielding frame.

4. The temperature controller with a heat dissipation structure according to claim 3, characterized in that, A first retaining ring is fixedly disposed in the first counterweight cavity, and the first retaining ring is used to restrict the axial sliding of the first counterweight piston; a second retaining ring is fixedly disposed in the second counterweight cavity, and the second retaining ring is used to restrict the axial sliding of the second counterweight piston.

5. The temperature controller with a heat dissipation structure according to claim 1, characterized in that, The shielding assembly further includes a movable cover plate and a heat dissipation assembly. The movable cover plate is slidably connected to the shielding frame. Each set of first sealed chambers is provided with a second piston. The second piston is fixedly connected to the movable cover plate. The second piston can slide along the axial direction of the shielding frame. One end of the second piston is fixedly connected to the spring. When the second piston drives the movable cover plate to slide, the heat dissipation assembly can dissipate heat from the temperature controller instrument.

6. The temperature controller with a heat dissipation structure according to claim 5, characterized in that, The heat dissipation assembly includes a heat dissipation plate, a heat dissipation groove is provided on the shielding frame, the heat dissipation plate is disposed in the heat dissipation groove, and the heat dissipation plate is rotatably connected to the shielding frame; a rotating shaft is fixedly provided on the heat dissipation plate, a spiral groove is provided on the rotating shaft, and a protrusion is fixedly provided in the movable cover plate; when the movable cover plate slides, the protrusion cooperates with the spiral groove to drive the heat dissipation plate to rotate axially around the rotating shaft.

7. The temperature controller with a heat dissipation structure according to claim 5, characterized in that, A third retaining ring is fixedly disposed in the first sealed chamber, and the third retaining ring is used to restrict the axial sliding of the second piston.

8. The temperature controller with a heat dissipation structure according to claim 6, characterized in that, The heat sink is configured as multiple units.

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