Refrigerating and heating device for internal welding machine sensor

Abstract

The utility model provides a refrigerating and heating device for an internal welding machine sensor. The refrigerating and heating device comprises a base; the hot end face of the TEC is used for being attached to the base, and the cold end face of the TEC is attached to the internal welding machine sensor; the temperature control assembly comprises a temperature detection piece, a relay and a controller, the temperature detection piece is used for measuring the environment temperature or the temperature of the internal welding machine sensor and transmitting a detected temperature value to the controller, and the controller is used for comparing the temperature value with a preset temperature value to obtain a temperature difference value and outputting a level signal according to the temperature difference value; and the relay is used for switching on a power supply of the TEC according to the level signal, so that the TEC heats or cools the internal welding machine sensor. Based on the environment temperature or the actually measured temperature of the internal welding machine sensor, refrigeration and heating of the internal welding machine sensor are achieved, the response speed is high, control is accurate, installation is easy and convenient, the occupied space is small, and cost is low.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and more specifically, to a refrigeration heating device for an internal welding machine sensor. Background Technology

[0002] With technological advancements, traditional temperature control methods for electronic components in internal welding machines primarily employ high-temperature heat dissipation and low-temperature insulation. High-temperature heat dissipation methods include natural cooling (dissipating heat to the environment through heat exchange and radiation), air cooling (accelerating heat exchange between the radiator and air using fans), and water cooling (laying circulating water pipes on the radiator to carry away heat before returning it to the main radiator for further cooling). Low-temperature insulation methods utilize heaters and insulation measures. For example, heaters transfer heat from a heat source to a colder object, while insulation layers are applied to the surface of electronic components to reduce heat loss during transport.

[0003] However, the heating and cooling methods mentioned above all suffer from low heat dissipation efficiency and cannot simultaneously meet the operational requirements in high and low temperature environments. Utility Model Content

[0004] This application provides a cooling and heating device for an internal welding machine sensor, which can improve heating and cooling efficiency and meet the operating requirements of the internal welding machine sensor in high and low temperature environments.

[0005] The cooling and heating device for an internal welding machine sensor provided in this application includes:

[0006] Base;

[0007] The TEC has a hot end face for bonding with the base and a cold end face for bonding with the internal welding machine sensor.

[0008] A temperature control component includes a temperature sensor, a relay, and a controller electrically connected to the temperature sensor and the relay. The temperature sensor measures the ambient temperature or the temperature of the internal welding machine sensor and transmits the detected temperature value to the controller. The controller controls the TEC to heat or cool the internal welding machine sensor.

[0009] In some embodiments, the relay includes a first relay and a second relay;

[0010] The COM terminal of the first relay is connected to the positive terminal of the TEC, the normally open terminal of the first relay is connected to the first positive terminal of the power supply, the normally closed terminal of the first relay is connected to the first negative terminal of the power supply, and the coil control terminal of the first relay is connected to the controller.

[0011] The COM terminal of the second relay is connected to the negative terminal of the TEC, the normally open terminal of the second relay is connected to the second positive terminal of the power supply, the normally closed terminal of the second relay is connected to the second negative terminal of the power supply, and the coil control terminal of the second relay is connected to the controller.

[0012] In some embodiments, the base is recessed along the thickness direction to form a mounting groove;

[0013] The mounting groove is a through groove extending through the base, and the opening size of the mounting groove is larger than the outer perimeter size of the TEC, so that the TEC is embedded in the mounting groove; or,

[0014] The mounting groove is a recessed groove, and the depth of the mounting groove is greater than or equal to half the height of the TEC.

[0015] In some embodiments, the cooling and heating device further includes a heat dissipation structure, which includes a fan and / or heat dissipation fins. The heat dissipation structure is disposed on the bottom surface of the base opposite to the TEC and is used to dissipate heat from the bottom surface of the base.

[0016] In some embodiments, the heat dissipation fins extend along a first direction and are disposed on the bottom surface of the base, and there are multiple heat dissipation fins, which are distributed at equal intervals along a second direction;

[0017] The first direction, the second direction, and the thickness direction are arranged perpendicular to each other.

[0018] In some embodiments, the heat dissipation structure further includes a plurality of heat dissipation holes formed in the base.

[0019] In some embodiments, the base is an aluminum base, a copper base, or a ceramic base.

[0020] In some embodiments, a protective shell is further included, which is disposed outside the temperature sensing element and is fixedly connected to the base.

[0021] In some embodiments, the protective shell has light-transmitting holes.

[0022] This application provides a cooling and heating device for an internal welding machine sensor, employing a TEC (Thermoelectric Temperature Regulator) combined with a temperature control component to achieve both cooling and heating of the sensor. The device measures the ambient temperature or the temperature of the internal welding machine sensor using a temperature sensor and transmits the temperature value to a controller. The controller compares the temperature value with a preset temperature value to obtain the temperature difference. Based on this difference, the controller controls a relay to execute either a heating mode or a cooling mode. In heating mode, the relay heats the internal welding machine sensor; in cooling mode, it cools the sensor. This application enables adaptive cooling and heating of the internal welding machine sensor based on its temperature or the ambient temperature, offering precise control, fast response, easy installation, small footprint, and low cost. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of a cooling and heating device for an internal welding machine sensor provided in some embodiments of this application;

[0025] Figure 2 for Figure 1 Exploded view;

[0026] Figure 3 A schematic diagram of the structure of a cooling and heating device for an internal welding machine sensor provided for other embodiments of this application;

[0027] Figure 4 for Figure 3 Exploded view;

[0028] Figure 5 This is a schematic diagram of a first heat dissipation structure for a cooling and heating device for an internal welding machine sensor provided in some embodiments of this application;

[0029] Figure 6 An exploded view of a second heat dissipation structure for a cooling and heating device for an internal welding machine sensor provided in some embodiments of this application;

[0030] Figure 7 A schematic diagram showing the connection between the TEC and the temperature control component of a cooling and heating device for an internal welding machine sensor provided in some embodiments of this application;

[0031] Figure 8Wiring diagrams of the first and second relays of a cooling and heating device for an internal welding machine sensor provided in some embodiments of this application.

[0032] The attached figures are labeled as follows:

[0033] 100. Refrigeration and heating devices;

[0034] 10. Base; 11. TEC; 12. Internal welding machine sensor; 14. Temperature control component; 15. Heat dissipation structure; 16. Protective shell;

[0035] 101. Mounting slot; 141. Temperature sensing element; 142. Controller; 143. First relay; 144. Second relay; 145. Power supply;

[0036] X, first direction; Y, second direction; Z, thickness direction. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In this application, "multiple" means two or more (including two).

[0039] A TEC (Thermo-Electric Cooler) utilizes the Peltier effect, generating electron-hole pairs through P-type and N-type semiconductors to form a cold junction, while the other end forms a hot junction due to electron-hole recombination. Cooling or heating functions are achieved by controlling the direction of the input current to the hot or cold junction of the TEC.

[0040] Based on TEC and combined with temperature sensing elements, relays and controllers, this application realizes the cooling and heating of internal welding machine sensors, as well as the switching between cooling and heating modes. It solves the technical problem that traditional internal welding machine sensors cannot simultaneously meet the operating requirements in high and low temperature environments, effectively improves the cooling and heating efficiency of internal welding machine sensors, enhances the cooling and heating effect, and can significantly reduce the impact of temperature drift on internal welding machine sensors.

[0041] The specific embodiments of this application will now be described in conjunction with the accompanying drawings.

[0042] like Figure 1 and Figure 2As shown. The cooling and heating device 100 for an internal welding machine sensor provided in this application mainly includes a base 10, a TEC 11, a fixing component, and a temperature control assembly 14. The base 10 is used to install the TEC 11 and the internal welding machine sensor 12 to ensure the stability of the internal welding machine sensor 12. The TEC 11 is fixedly installed on the base 10, with its hot end face in contact with the base 10 and its cold end face in contact with the internal welding machine sensor 12. The detection end of the internal welding machine sensor 12 is in contact with the TEC 11, and the fixing end of the internal welding machine sensor 12 is connected to the base 10. Thermally conductive adhesive can be filled between the TEC 11 and the base 10, and between the TEC 11 and the internal welding machine sensor 12, to increase thermal conductivity.

[0043] The temperature control component 14 includes a temperature sensor 141, a relay, and a controller 142. The controller 142 connects the temperature sensor 141 and the relay via a data cable to achieve data transmission and action control. The temperature sensor 141, such as a temperature sensor (e.g., a laser sensor, infrared sensor), measures the ambient temperature or the temperature of the internal welding machine sensor 12 and transmits the measured temperature value to the controller 142 via the data cable. The controller 142 has built-in preset temperature values ​​and control parameters. The controller 142 receives the current temperature value and compares it with the preset temperature value to calculate the temperature difference. The controller 142 outputs a control signal based on the calculated temperature difference to control the relay. The relay switches the power supply of the TEC 11 according to the control signal.

[0044] The controller 142 detects the ambient temperature to determine whether cooling or heating is needed, and switches the operating mode of TEC11 via a relay to control the temperature of the sensor. When TEC11 is working normally, its cold end face is in close contact with the inner welding machine sensor 12 to achieve heat dissipation or heating, while its hot end face is tightly attached to the base 10 with thermally conductive adhesive.

[0045] Specifically, controller 142 outputs a signal based on the temperature difference to switch the power supply of TEC11. The input terminal of the relay is connected to controller 142, and the output terminal of the relay is connected to the power supply of TEC11. When controller 142 outputs a high-level or low-level signal, the relay connects or disconnects the power supply of TEC11 accordingly.

[0046] When the relay is on, TEC11 heats or cools according to the direction of the current. The positive and negative terminals of TEC11 are connected to the relay output. When the temperature is below the set value, the controller 142 outputs a signal, the relay is on, and TEC11 heats. When the temperature is above the set value, the controller 142 outputs a signal, the relay is on, and TEC11 cools. When the temperature reaches the set value, the controller 142 stops outputting, the relay is off, and TEC11 stops working. For example, if the target temperature set by the controller 142 is -20°C, when the temperature sensor 141 detects that the current temperature is 20°C, the controller 142 outputs a control signal and controls the relay to turn on TEC11, and TEC11 begins cooling until the temperature drops to -20°C, at which point the controller 142 stops outputting, the relay is off, and TEC11 stops working. For example, the target temperature set by the controller 142 is 20°C. When the temperature sensor 141 detects that the current temperature is 10°C, the controller 142 outputs a control signal and controls the relay to turn on the power of the TEC11. The TEC11 starts heating until the temperature rises to 20°C. Then the controller 142 stops outputting, the relay is turned off, and the TEC11 stops working.

[0047] like Figure 3 and Figure 4 As shown. The cooling and heating device 100 in this application can be applied to each of the internal welding machine sensors 12 inside the internal welding machine. Each internal welding machine sensor 12 corresponds to a TEC11 cooling chip and can be integrated and installed on a base 10. The voltage parameter of TEC11 is 12V. Each TEC11 can be connected in series, in pairs in series and then in parallel, or any number of TEC11 can be connected in series, or each TEC11 can be connected in parallel and then connected to a copper busbar, thereby realizing the cooling and heating function of the sensor to improve environmental adaptability. It has the advantages of simple installation, fast response speed, small size and low cost.

[0048] It should be noted that for details regarding the specific structure and heating principle of the TEC11, please refer to existing technologies; this article will not elaborate further.

[0049] The cooling and heating device 100 for the internal welding machine sensor 12 provided in this application adopts a TEC11 integrated cooling and heating structure. Through the TEC11, temperature sensor, relay, and controller 142, it can automatically switch between TEC11 cooling and heating modes according to the actual ambient temperature or the temperature of the internal welding machine sensor 12, effectively adapting to different temperature environments. This achieves precise control of the internal welding machine sensor 12, achieving the purpose of heating or cooling. This application enhances the adaptability of the internal welding machine sensor 12 in high and low temperature environments, reduces the interference of temperature drift on sensor data, improves the accuracy of test data, and has high working efficiency. Especially in dynamic environments, it can simultaneously meet the needs of heat dissipation and heating. Furthermore, this application avoids the water leakage problem caused by traditional water cooling methods, effectively protecting the internal welding machine.

[0050] like Figure 8 As shown. In one specific embodiment, the relay includes a first relay 143 and a second relay 144. The COM terminal of the first relay 143 is connected to the positive terminal of TEC 11, the normally open terminal of the first relay 143 is connected to the first positive terminal of the power supply 145, the normally closed terminal of the first relay 143 is connected to the first negative terminal of the power supply 145, and the coil control terminal of the first relay 143 is connected to the controller 142.

[0051] The positive terminal of TEC11 is connected to the COM terminal (common terminal) of the first relay 143. The normally open terminal CN of the first relay 143 is connected to the positive terminal of the 24V switching power supply, and the normally closed terminal CO is connected to the negative terminal of the 24V switching power supply. The negative terminal of TEC11 is connected to the COM terminal of the second relay 144. The normally open terminal CN of the second relay 144 is connected to the second positive terminal of the 24V power supply 145. The normally closed terminal of the second relay 144 is connected to the second negative terminal of the power supply 145. The coil control terminal of the second relay 144 is connected to the controller 142.

[0052] like Figure 7 As shown, the coil control terminals of the first relay 143 and the second relay 144 are connected to the controller 142 of the inner welding machine. The controller 142 makes a corresponding judgment, collects the working environment of the inner welding machine through the temperature detection element 141 and transmits it to the controller 142. The controller 142 determines whether to close the relay to change the current direction of TEC11, thereby realizing the cooling and heating function.

[0053] In this embodiment, a 24V DC power supply design is adopted. The switching of heating and cooling modes of TEC11 is realized by controlling the on / off state of the first relay 143 and the second relay 144.

[0054] Regarding the installation method of TEC11 and base 10, in one specific embodiment, base 10 is recessed along the thickness direction Z to form a mounting groove 101. The mounting groove 101 is a through groove that passes through base 10, and the groove opening size of mounting groove 101 is larger than the outer perimeter size of TEC11 to ensure that TEC11 is embedded in mounting groove 101. Thermally conductive adhesive is filled between TEC11 and base 10.

[0055] In the assembled state, TEC11 is completely embedded in the mounting groove 101, with the center of the inner welding machine sensor 12 attached to TEC11 and its surrounding area attached to the base 10, resulting in a more secure installation. In another specific embodiment, the mounting groove 101 is a recessed groove, with a depth greater than or equal to half the height of TEC11. After assembling with the mounting groove 101, part of TEC11 extends out of the mounting groove 101, with the protruding portion not exceeding half of TEC11, to avoid excessively high detection height of the inner welding machine sensor 12 located on top of TEC11, thus ensuring detection accuracy.

[0056] like Figure 5 As shown. To improve heat dissipation, a heat dissipation structure 15 can be provided on the base 10. The heat dissipation structure 15 can be provided on the bottom surface of the base 10 away from the TEC11. The heat dissipation structure 15 can be a fan, which can be connected to the controller 142. The fan can accelerate the heat exchange between the base 10 and the air, thereby improving the heat dissipation efficiency.

[0057] like Figure 6 As shown. In addition, the heat dissipation structure 15 can also be heat dissipation fins, which can increase the contact area with the air and improve heat dissipation efficiency.

[0058] The heat dissipation fins extend along the first direction X and are disposed on the bottom surface of the base 10. There can be multiple heat dissipation fins, which are distributed at intervals along the second direction Y on the bottom surface of the base 10.

[0059] Optionally, heat dissipation fins are evenly distributed on the bottom surface of the base 10.

[0060] It should be noted that the first direction X can be Figure 6 In the X direction, the second direction Y can be Figure 6 In the Y direction, the thickness direction Z can be Figure 6 In the Z direction, the three directions are set perpendicular to each other.

[0061] In addition, heat dissipation holes or heat dissipation pipes can be opened on the base 10 to dissipate heat from the base 10 and enhance the heat dissipation effect.

[0062] Furthermore, the base 10 can be made of aluminum, copper, ceramic, or other materials with good heat dissipation properties, so that the base 10 has a better heat dissipation effect.

[0063] To improve the protection of the temperature sensing element 141, a protective shell 16 can be installed on the outside of the temperature sensing element 141. The protective shell 16 covers the outside of the temperature sensing element 141 and has bolt holes to ensure that the temperature sensing element 141 is not damaged by the outside, and to ensure the relative position of the TEC11, the base 10 and the temperature sensing element 141, so that the connection is tighter and more secure, improving the heat transfer efficiency. Its structure is simple and compact, and it can effectively fix the temperature sensing element 141.

[0064] In addition, light-transmitting holes can be opened on the protective shell 16 to better adapt to infrared and laser-type temperature detection components 141 and ensure that the detection line is emitted.

[0065] This application utilizes the cooling and heating functions of TEC11 to flexibly adjust the temperature according to the ambient temperature, ensuring that the temperature sensing element 141 operates at a suitable temperature. This reduces performance fluctuations of the temperature sensing element 141 caused by temperature changes. Temperature control is achieved using TEC11, and intelligent management is implemented through controller 142. By switching the operating states of different TEC11s using relays, the application can quickly respond to temperature changes in complex and variable environments, ensuring that the internal welding machine sensor 12 is always in optimal working condition.

[0066] The cooling and heating device for an internal welding machine sensor provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A refrigeration and heating device for an inside welding machine sensor, characterized in that, The application relates to a refrigeration and heating device. The refrigeration and heating device comprises a base (10), a TEC (11), a temperature control assembly (14), and a heat dissipation structure (15). The hot end surface of the TEC (11) is used for abutting against the base (10), and the cold end surface of the TEC (11) is used for abutting against an internal welding machine sensor (12). The temperature control assembly (14) comprises a temperature detecting element (141), a relay and a controller (142) electrically connected to the temperature detecting element (141) and the relay.

2. The refrigeration and heating device for an inside welding machine sensor according to claim 1, characterized in that, The temperature detecting element (141) is used for measuring the temperature of the environment or the internal welding machine sensor (12) and transmitting the detected temperature value to the controller (142). The controller (142) is used for controlling the TEC (11) to heat or cool the internal welding machine sensor (12). The relay comprises a first relay (143) and a second relay (144).

3. The refrigeration and heating device for an inside welding machine sensor according to claim 2, characterized in that, The COM end of the first relay (143) is connected to the positive electrode end of the TEC (11). The normally open end of the first relay (143) is connected to the first positive electrode end of a power supply (145). The normally closed end of the first relay (143) is connected to the first negative electrode end of the power supply (145).

4. The refrigeration and heating device for an inside welding machine sensor according to claim 3, characterized in that, The coil control end of the first relay (143) is connected to the controller (142).

5. The refrigeration and heating device for an inside welding machine sensor according to claim 4, characterized in that, The COM end of the second relay (144) is connected to the negative electrode end of the TEC (11). The normally open end of the second relay (144) is connected to the second positive electrode end of the power supply (145).

6. The refrigeration and heating device for an inside welding machine sensor according to claim 4, characterized in that, The normally closed end of the second relay (144) is connected to the second negative electrode end of the power supply (145).

7. The refrigeration and heating device for an inside welding machine sensor according to claim 1, characterized in that, The coil control end of the second relay (144) is connected to the controller (142).

8. The refrigeration and heating device for a sensor of an internal welding machine according to any one of claims 1 to 7, characterized in that, The base (10) is recessed along the thickness direction to form a mounting groove (101). The mounting groove (101) is a through groove penetrating through the base (10). The size of the groove opening of the mounting groove (101) is greater than the peripheral size of the TEC (11), so that the TEC (11) is embedded in the mounting groove (101). Alternatively, the mounting groove (101) is a sink groove. The depth of the mounting groove (101) is greater than or equal to one half of the height of the TEC (11). The refrigeration and heating device further comprises the heat dissipation structure (15). The heat dissipation structure (15) comprises a fan and / or a heat dissipation fin. The heat dissipation fin extends along a first direction and is arranged on the bottom surface of the base (10). The heat dissipation fin is a plurality of heat dissipation fins. The first direction, the second direction and the thickness direction are perpendicular to each other. The heat dissipation structure (15) further comprises a plurality of heat dissipation holes formed in the base (10). The base (10) is an aluminum base, a copper base or a ceramic base. The refrigeration and heating device further comprises a protective shell (16) covering the temperature detecting element (141). The protective shell (16) is fixedly connected to the base (10).

9. The refrigeration and heating device for an inside welding machine sensor according to claim 8, characterized in that, The protective shell (16) is provided with a light transmission hole.

Images