A peltier temperature control module

Abstract

The utility model belongs to temperature control device technical field belongs to a peltier temperature control module, including substrate, square hole slot piece, peltier unit, copper base heat conduction sheet, temperature sensor, heat insulating layer and radiating component, square hole slot piece is embedded to one side frame of substrate, peltier unit and copper base heat conduction sheet are closely bonded through heat conduction silicone grease layer, heat insulating layer is embedded to square hole slot piece middle part, peltier unit is embedded in heat insulating layer center recess, temperature sensor and copper base heat conduction sheet pressure -sintered connection, temperature sensor and peltier unit electric connection, radiating component is connected in the other side of substrate and is contacted with peltier unit, is used for radiating cooling. The utility model can solve the low heat conduction efficiency, temperature response slow, control precision is insufficient and so on in prior art.

Description

Technical Field

[0001] This utility model belongs to the field of temperature control device technology, specifically relating to a Peltier temperature control module. Background Technology

[0002] Peltier modules (thermoelectric coolers) are temperature control devices based on the thermoelectric effect, widely used in precision instruments, medical equipment, and industrial temperature control systems. Existing Peltier structures often suffer from low heat transfer efficiency, slow temperature response, uneven temperature gradient distribution, poor mechanical stability, and tight coupling with ambient temperature. Especially in scenarios requiring rapid heating and cooling and high-precision temperature control, traditional structures struggle to simultaneously meet the dual requirements of efficiency and stability. Utility Model Content

[0003] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a Peltier temperature control module. This invention can solve problems such as low heat conduction efficiency, slow temperature response, and insufficient control accuracy in existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] This utility model provides a Peltier temperature control module, characterized in that it includes a substrate, a square-hole slot, a Peltier unit, a copper-based thermal conductive sheet, a temperature sensor, a heat insulation layer, and a heat dissipation assembly. The square-hole slot is embedded in one side frame of the substrate. The Peltier unit is tightly fitted to the copper-based thermal conductive sheet with a thermally conductive silicone grease layer sandwiched between them. The heat insulation layer is embedded in the middle of the square-hole slot. The Peltier unit is embedded in the central groove of the heat insulation layer. The temperature sensor is press-fitted to the copper-based thermal conductive sheet and electrically connected to the Peltier unit. The heat dissipation assembly is connected to the other side of the substrate and contacts the Peltier unit for heat dissipation and cooling.

[0006] Furthermore, the heat dissipation assembly includes aluminum heat sink fins, a fan, and a connector. The aluminum heat sink fins are connected to the substrate via the connector, the fan is connected to the aluminum heat sink fins via the connector, and the aluminum heat sink fins are in contact with the Peltier unit with a thermally conductive silicone grease layer sandwiched between them.

[0007] Furthermore, the copper-based heat-conducting sheet is made of high-purity copper material and its surface is treated with anti-oxidation.

[0008] Furthermore, the antioxidant treatment is a nickel plating treatment.

[0009] Furthermore, the temperature sensor is a PT1000 temperature sensor.

[0010] Furthermore, a layer of thermally conductive silicone grease is sandwiched between the temperature sensor and the copper-based thermal conductive sheet.

[0011] Furthermore, the Peltier unit and the temperature sensor are connected to the external wiring terminals using a four-wire connection method. Two wires are used to provide the Peltier drive current, and the other two wires are used for sensor signal acquisition.

[0012] The beneficial effects of this utility model.

[0013] This invention features a fast thermal response, high temperature control accuracy, and an efficient heat conduction path, reducing temperature detection lag. It also boasts excellent thermal management and heat dissipation efficiency, significantly improving heat loss to the environment and ensuring temperature stability and reliability during prolonged high-power operation. Furthermore, it features a compact and robust structure with strong environmental adaptability, enhanced electrical safety and long-term reliability, and a high degree of integration, facilitating installation and maintenance. Attached Figure Description

[0014] To make the technical problems solved, the technical solutions, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] Figure 1 This is a schematic diagram of the overall explosion effect of this utility model.

[0016] Figure 2 This is a front view structural diagram of the assembly of this utility model.

[0017] Figure 3 This is a side view diagram of the assembly structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the assembled rear view structure of this utility model.

[0019] In the diagram, the following are the markings: 1 is the substrate, 2 is the square hole slot plate, 3 is the Peltier unit, 4 is the copper-based thermal conductive sheet, 5 is the temperature sensor, 6 is the heat insulation layer, 7 is the aluminum heat sink fin, 8 is the fan, 9 is the connector, and 10 is the thermal grease layer. Detailed Implementation

[0020] As shown in the accompanying drawings, this embodiment provides a Peltier temperature control module, including a substrate 1, a square hole slot 2, a Peltier unit 3, a copper-based heat-conducting sheet 4, a temperature sensor 5, a heat insulation layer 6, and a heat dissipation component.

[0021] The square hole slot 2 is embedded in one side frame of the substrate 1. The Peltier unit 3 is closely attached to the copper-based thermal conductive sheet 4 and a thermally conductive silicone grease layer 10 is sandwiched in between, forming the main heat conduction path.

[0022] The copper-based heatsink 4 is made of high-purity copper material, with specific dimensions of 19.5mm × 11.5mm and a thickness of 1mm. The surface is treated with anti-oxidation (nickel plating can be used) to improve thermal conductivity and mechanical strength.

[0023] The heat insulation layer 6 is embedded in the middle of the square hole groove 2, and the Peltier unit 3 is embedded in the central groove of the heat insulation layer 6 to isolate the temperature and prevent the temperature of the Peltier unit 3 from spreading.

[0024] Temperature sensor 5 is pressed together with copper-based thermal conductive sheet 4 and a thermally conductive silicone grease layer 10 is sandwiched between them. Temperature sensor 5 is electrically connected to Peltier unit 3. Temperature sensor 5 is a PT1000 temperature sensor 5 used to monitor temperature changes.

[0025] The Peltier unit 3 and the temperature sensor 5 are connected to the external terminals using a four-wire connection method. Two wires are used to provide the Peltier drive current, and the other two wires are used for sensor signal acquisition to eliminate errors caused by lead resistance.

[0026] A heat dissipation assembly is connected to the other side of the substrate 1 and contacts the Peltier unit 3 for heat dissipation and cooling. Specifically, the heat dissipation assembly includes aluminum heat sink fins 7, a fan 8, and a connector 9. The aluminum heat sink fins 7 are connected to the substrate 1 via the connector 9, the fan 8 is connected to the aluminum heat sink fins 7 via the connector 9, and the aluminum heat sink fins 7 are in contact with the Peltier unit 3 with a thermally conductive silicone grease layer 10 sandwiched in between.

[0027] This module can operate within a working range of -40℃ to +100℃, with a temperature control accuracy of ±0.1℃ and a thermal response time of less than 5 seconds. It is suitable for high-requirement applications such as medical testing equipment, laser temperature control, and precision experimental devices.

[0028] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. A Peltier temperature control module, characterized in that, The device includes a substrate (1), a square hole slot (2), a Peltier unit (3), a copper-based thermal conductive sheet (4), a temperature sensor (5), a heat insulation layer (6), and a heat dissipation assembly. The square hole slot (2) is embedded in one side frame of the substrate (1). The Peltier unit (3) and the copper-based thermal conductive sheet (4) are tightly bonded together by a thermally conductive silicone grease layer. The heat insulation layer (6) is embedded in the middle of the square hole slot (2). The Peltier unit (3) is embedded in the central groove of the heat insulation layer (6). The temperature sensor (5) is pressed and connected to the copper-based thermal conductive sheet (4). The temperature sensor (5) is electrically connected to the Peltier unit (3). The heat dissipation assembly is connected to the other side of the substrate (1) and contacts the Peltier unit (3) for heat dissipation and cooling.

2. The Peltier temperature control module according to claim 1, characterized in that, The heat dissipation assembly includes an aluminum heat sink fin (7), a fan (8), and a connector (9). The aluminum heat sink fin (7) is connected to the substrate (1) via the connector (9). The fan (8) is connected to the aluminum heat sink fin (7) via the connector (9). The aluminum heat sink fin (7) is in contact with the Peltier unit (3) and has a thermally conductive silicone grease layer (10) sandwiched in between.

3. The Peltier temperature control module according to claim 1, characterized in that, The copper-based heat-conducting sheet (4) is made of high-purity copper material and its surface is treated with anti-oxidation.

4. A Peltier temperature control module according to claim 3, characterized in that, The antioxidant treatment is a nickel plating process.

5. A Peltier temperature control module according to claim 1, characterized in that, The temperature sensor (5) is a PT1000 temperature sensor.

6. A Peltier temperature control module according to claim 1, characterized in that, A thermally conductive silicone grease layer (10) is sandwiched between the temperature sensor (5) and the copper-based thermal conductive sheet (4).

7. A Peltier temperature control module according to claim 1, characterized in that, The Peltier unit (3) and the temperature sensor (5) are connected to the external terminals using a four-wire connection method. Two wires are used to provide the drive current of the Peltier unit (3), and the other two wires are used for signal acquisition by the temperature sensor (5).

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