Temperature controller

Abstract

The utility model discloses a temperature controller, which relates to the field of temperature control switches, and is characterized in that the temperature controller comprises a shell, one end of the shell is fixedly connected with a probe, an arithmetic unit is arranged in the shell, a thermal insulation cavity is formed in the shell and located between the arithmetic unit and the probe, a through hole is formed in the side wall of the thermal insulation cavity, and the thermal insulation cavity is communicated with the outside through the through hole. The end, away from the probe, of the shell is provided with a wiring hole, the end, close to the arithmetic unit, of the probe is electrically connected with a cable, the cable penetrates through the thermal insulation cavity, the through hole and the wiring hole, and the tail end of the cable is electrically connected with the end, away from the probe, of the arithmetic unit. According to the utility model, the joint of the cable and the arithmetic unit is arranged at one side, far away from the probe, of the shell, so that the probe and the arithmetic unit are completely isolated, heat transferred to the arithmetic unit is reduced, the heat transferred through the shell is reduced by the sealing ring, the hollow cavity is completely sealed, and an air layer flowing slowly is formed in the hollow cavity, so that heat transfer is hindered; the isolation tube provides a passage for the cable to pass through the hollow cavity.

Description

Technical Field

[0001] The utility model relates to the field of temperature control switches, and more specifically, to a temperature controller. Background Art

[0002] A thermostat is an electrical component that detects temperature changes and converts them into electrical signals. It is mostly used in heaters or refrigerators that need to control the temperature within a certain range to achieve the effect of automatic temperature control. Thermostats include plug-in thermostats, which generally include a housing, an operator, and a probe. The probe is inserted into the position where the temperature needs to be detected and is electrically connected to the operator in the housing. The operator receives and processes the signal from the probe and transmits it to other electrical components, so that other electrical components can obtain the temperature information captured by the probe and respond accordingly.

[0003] In many cases, the shell needs to have a certain effect of reducing heat transfer to prevent the heat at the probe from being transferred to the operator and affecting the circuit inside the operator. However, the connection between the probe and the shell requires a cable to pass through to transmit signals, which makes it easy for heat to be transferred here, thereby affecting the circuit inside the operator.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a temperature controller.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a temperature controller, including a shell, one end of the shell is fixedly connected to a probe, a calculator is arranged in the shell, a temperature insulation cavity is opened in the shell, the temperature insulation cavity is located between the calculator and the probe, a through hole is opened on the side wall of the temperature insulation cavity, the through hole connects the temperature insulation cavity with the outside world, a wiring hole is opened at one end of the shell away from the probe, the end of the probe close to the calculator is electrically connected to a cable, the cable passes through the temperature insulation cavity, the through hole and the wiring hole, and the end of the cable is electrically connected to the end of the calculator away from the probe.

[0007] The utility model is further configured as follows: a hollow cavity is provided in the shell between the temperature-isolating cavity and the probe, and the cross-sectional area of ​​the hollow cavity is larger than the cross-sectional area of ​​the temperature-isolating cavity.

[0008] The utility model is further configured as follows: an isolation tube for the cable to pass through is fixedly connected in the hollow cavity, the inner cavity of the isolation tube is communicated with the temperature insulation cavity, and the inner cavity of the isolation tube is isolated from the hollow cavity.

[0009] The utility model is further configured as follows: a wire groove is arranged outside the shell, the wire groove communicates with the through hole and the wiring hole, and the cable is located in the wire groove.

[0010] The utility model is further configured as follows: the wire trough is detachably connected to the housing.

[0011] The utility model is further configured as follows: a plurality of heat dissipation holes are provided on one side of the wire slot away from the probe.

[0012] The utility model is further configured as follows: a sealing ring is fixedly connected to the outer wall of the probe, and one side of the sealing ring is in contact with the outer side wall of the shell.

[0013] In summary, the utility model has the following beneficial effects: the connection between the cable and the operator is arranged on the side of the shell away from the probe, so that the probe and the operator are completely isolated, reducing the heat transferred to the operator, the sealing ring reduces the heat transferred through the shell, the hollow cavity is completely closed, and a slow-flowing air layer is formed inside to hinder heat transfer, and the isolation tube provides a channel for the cable to pass through the hollow cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a cross-sectional view Figure 1 ;

[0015] Figure 2 The utility model is a cross-sectional view Figure 2 .

[0016] In the figure: 1. Shell; 2. Probe; 3. Calculator; 4. Temperature insulation chamber; 5. Through hole; 6. Wiring hole; 7. Cable; 8. Hollow cavity; 9. Isolation tube; 10. Wire trough; 11. Heat dissipation hole; 12. Sealing ring. DETAILED DESCRIPTION

[0017] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] Embodiment: A thermostat, such as Figure 1 , Figure 2 As shown, it includes a shell 1, one end of the shell 1 is fixedly connected to a probe 2, an operator 3 is arranged in the shell 1, a temperature-isolating chamber 4 is opened in the shell 1, the temperature-isolating chamber 4 is located between the operator 3 and the probe 2, a through hole 5 is opened on the side wall of the temperature-isolating chamber 4, the through hole 5 connects the temperature-isolating chamber 4 with the outside, a wiring hole 6 is opened at the end of the shell 1 away from the probe 2, the end of the probe 2 close to the operator 3 is electrically connected to a cable 7, the cable 7 passes through the temperature-isolating chamber 4, the through hole 5, and the wiring hole 6, the end of the cable 7 is electrically connected to the end of the operator 3 away from the probe 2, a sealing ring 12 is fixedly connected to the outer wall of the probe 2, and one side of the sealing ring 12 is in contact with the outer wall of the shell 1.

[0019] Specifically, the shell 1 is in the shape of a rectangular parallelepiped, the operator 3 is embedded in the shell 1, one end of the operator 3 is electrically connected to the output line, the output line and the probe 2 are located on both sides of the shell 1, one end of the probe 2 is inserted into the shell 1, the sealing ring 12 is sleeved on the probe 2 and bonded to the probe 2, the axis of the through hole 5 is perpendicular to the axis of the probe 2, the axis of the wiring hole 6 is parallel to the axis of the probe 2 and is located on the side of the axis of the probe 2 close to the through hole 5, the connection between the cable 7 and the operator 3 is set on the side of the shell 1 away from the probe 2, so that the probe 2 and the operator 3 are completely isolated, the heat transferred to the operator 3 is reduced, and the sealing ring 12 reduces the heat transferred through the shell 1.

[0020] like Figure 1 , Figure 2 As shown, a hollow cavity 8 is opened in the shell 1 between the thermal insulation cavity 4 and the probe 2, and the cross-sectional area of ​​the hollow cavity 8 is larger than the cross-sectional area of ​​the thermal insulation cavity 4. An isolation tube 9 is fixedly connected in the hollow cavity 8 for the cable 7 to pass through. The inner cavity of the isolation tube 9 is connected to the thermal insulation cavity 4, and the inner cavity of the isolation tube 9 is isolated from the hollow cavity 8. Specifically, the isolation tube 9 and the shell 1 are integrally formed, and the axis of the isolation tube 9 coincides with the axis of the probe 2. The cross-section of the hollow cavity 8 and the cross-section of the thermal insulation cavity 4 are both square. The hollow cavity 8 is completely closed, and a slow-flowing air layer is formed inside it to hinder heat transfer. The isolation tube 9 provides a channel for the cable 7 to pass through the hollow cavity 8.

[0021] like Figure 1 , Figure 2 As shown, a wire groove 10 is provided outside the shell 1, and the wire groove 10 connects the through hole 5 and the wiring hole 6. The cable 7 is located in the wire groove 10. The wire groove 10 is detachably connected to the shell 1. A plurality of heat dissipation holes 11 are provided on the side of the wire groove 10 away from the probe 2. Specifically, the two ends of the cable 7 are first fixed, and then the wire groove 10 is installed so that the cable 7 is located in the wire groove 10. The wire groove 10 is bolted to the shell 1. The wire groove 10 limits the route of the cable 7 and protects the cable 7 outside the shell 1. The heat dissipation holes 11 provided on the side of the wire groove 10 away from the probe 2 make the temperature in the wire groove 10 closer to the temperature on the side of the shell 1 away from the probe 2.

[0022] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A temperature controller, comprising a housing, one end of which is fixedly connected to a probe, and a computing unit is disposed in the housing, wherein: A temperature-isolating cavity is provided in the shell, and the temperature-isolating cavity is located between the operator and the probe. A through hole is provided on the side wall of the temperature-isolating cavity, and the through hole connects the temperature-isolating cavity with the outside world. A wiring hole is provided at one end of the shell away from the probe, and one end of the probe close to the operator is electrically connected to a cable. The cable passes through the temperature-isolating cavity, the through hole, and the wiring hole, and the end of the cable is electrically connected to one end of the operator away from the probe.

2. The thermostat according to claim 1, characterized in that: The shell is provided with a hollow cavity between the temperature-isolating cavity and the probe, and the cross-sectional area of ​​the hollow cavity is larger than the cross-sectional area of ​​the temperature-isolating cavity.

3. The thermostat according to claim 2, characterized in that: An isolation tube for the cable to pass through is fixedly connected in the hollow cavity, the inner cavity of the isolation tube is communicated with the temperature insulation cavity, and the inner cavity of the isolation tube is isolated from the hollow cavity.

4. The thermostat according to claim 3, characterized in that: A wire groove is arranged outside the shell, the wire groove communicates with the through hole and the wiring hole, and the cable is located in the wire groove.

5. The thermostat according to claim 4, characterized in that: The wire trough is detachably connected to the shell.

6. The thermostat according to claim 5, characterized in that: A plurality of heat dissipation holes are provided on a side of the wire slot away from the probe.

7. The thermostat according to claim 1, characterized in that: A sealing ring is fixedly connected to the outer wall of the probe, and one side of the sealing ring is in contact with the outer side wall of the shell.

Images