CN201688621U - Structure of temperature control testing device - Google Patents

Abstract

The utility model relates to a control by temperature change testing arrangement's structure belongs to the electric type, and this control by temperature change testing arrangement mainly includes a platform, a refrigeration chip and a heat dissipation mechanism, and this heat dissipation mechanism comprises a heat dissipation base of acceping the refrigerant pipe, a heat dissipation fin group and an at least fan that connects in this heat dissipation base bottom, consequently, through this refrigerant pipe, heat dissipation fin group, fan and refrigeration chip, make temperature control testing arrangement reach the degree of accuracy higher, the fast, the highest temperature of platform reaches the effect of minimum temperature range increase of rising temperature and cooling speed.

Description

The structure of the temperature control test device

technical field

The utility model relates to electrics, in particular to a structure of a temperature control test device, especially a structure of a temperature control test device with a wider temperature control range, high heat-dissolving ability and fast temperature control speed.

Background technique

Generally, cooling chips are often used to heat up and cool down, and can achieve effective temperature control with a set of equipment, and there must be a heat dissipation mechanism to control the temperature control capability of the temperature control platform, and it is the main temperature control range. One of the components, and the most common design of the heat dissipation mechanism is divided into two types, one is air-cooled, the other is water-cooled, as shown in Figure 1, which is the plane of the existing air-cooled temperature control platform mechanism Schematic diagram, as can be clearly seen from the figure, the temperature control platform mechanism 10 includes a platform 12 for placing the desired temperature control sample 11; a cooling chip 13 attached to the bottom 121 of the platform 12; The heat dissipation mechanism 14 at the bottom 131 of the cooling chip 13 is composed of heat dissipation metal fins 141 and a fan 142. When the temperature control sample 11 is about to cool down, the current of the cooling chip 13 is changed, and the current of the cooling chip 13 is passed through the cooling chip 13. The cooling chip 13 extracts the heat energy on the platform 12, and the heat dissipation metal fin 141 utilizes the heat dissipation and blowing mode of the fan 142 to take away the heat energy. The advantage is that the structure is simple, and therefore the cost is relatively low. The heat dissipation mechanism is the temperature of the air, which cannot reach a lower temperature control range.

Another existing technology improves the shortcomings of the above-mentioned existing temperature control technology. As shown in Figure 2, it is a schematic plan view of another existing water-cooled temperature control platform mechanism. It can be clearly seen from the figure that the The temperature control platform mechanism 20 includes a platform 22 for placing the desired temperature control sample 21; a cooling chip 23 attached to the bottom 221 of the platform 22; a cooling mechanism attached to the bottom 231 of the cooling chip 23 24. The heat dissipation mechanism 24 is composed of a chiller 241 connected to a water circulation pipeline 242. When the temperature-controlled sample 21 wants to cool down, the current of the cooling chip 23 is changed, and the cooling chip 23 passes through the cooling chip 23. The heat energy is extracted, and the heat energy is taken away by the ice-water soluble liquid 25 in the water circulation pipeline 242, and then a more effective and lower temperature cooling effect is achieved by the ice-water soluble liquid 25. However, although this method can effectively achieve Cooling effect, but because of the necessity to use the ice water machine 241, the cost is increased, and if the freezing point of the ice-water soluble liquid 25 does not reach the standard value, it must take a longer time to wait for it to reach the standard value before continuing to cool down, and another The disadvantage is that if the water circulation pipeline 242 breaks and causes water leakage, it will be very troublesome.

Utility model content

The purpose of this utility model is to provide a structure of a temperature control testing device to make up for the shortcomings of the above two heat dissipation mechanisms.

A structure of a temperature control test device, which includes a platform for placing samples to be subjected to temperature control, a cooling chip is attached to the bottom of the platform, and the cooling chip is arranged on a heat dissipation mechanism, wherein the heat dissipation mechanism mainly includes :

A heat dissipation base attached to the cooling chip, and a refrigerant pipe is arranged in the heat dissipation base;

a heat dissipation fin set connected to the bottom of the heat dissipation base; and

at least one fan disposed on the other side of the connection between the heat dissipation fin set and the heat dissipation base;

The refrigerant pipe is connected to a compressor, a refrigerant condenser, an expansion valve and an evaporator;

the refrigerant pipe is filled with refrigerant;

The temperature control test device is electrically connected to a control unit for controlling the temperature control test device to adjust the temperature up or down.

The utility model has the advantages of: it has the advantages of both air-cooled and water-cooled, the low-temperature range can be made lower by the refrigerant pipe, and the high-temperature range by the fan is higher, and when the high and low temperature control is changed, the heat capacity of the system Small, fast response, low cost, no water leakage problem.

Description of drawings

FIG. 1 is a schematic plan view of an existing air-cooled temperature control platform mechanism.

FIG. 2 is a schematic plan view of another existing water-cooled temperature control platform mechanism.

Fig. 3 is a schematic plan view of a preferred embodiment of the present invention.

Fig. 4 is a schematic diagram of implementation of a preferred embodiment of the present invention.

FIG. 5 is the first schematic diagram of the operation of the preferred embodiment of the present invention.

Fig. 6 is the second schematic diagram of the operation of the preferred embodiment of the present invention.

Detailed ways

As shown in accompanying drawing 3, it is a schematic plan view of a preferred embodiment of the present invention, and it can be clearly seen from the figure that the temperature control test device 30 of the present invention includes a platform 31 for placing the desired temperature control sample 40, the platform 31 The bottom 311 is attached with a cooling chip 32, and the cooling chip 32 is arranged on a heat dissipation mechanism 33. The heat dissipation mechanism 33 mainly includes a heat dissipation base 34 attached to the cooling chip 32. The heat dissipation base 34 is provided with a refrigerant pipe 35, the refrigerant pipe 35 is connected to a compressor 351, a refrigerant condenser 352, an expansion valve 353 and an evaporator 354, and the refrigerant pipe 35 is filled with refrigerant, and the bottom of the cooling base 34 341 is connected to a heat dissipation fin set 36 , and at least one fan 37 is provided on the other side of the connection between the heat dissipation fin set 36 and the heat dissipation base 34 .

Based on the above-mentioned structure and composition design, the usage of the present utility model is described as follows, as shown in accompanying drawings 3 to 6, which are schematic plan views, schematic diagrams of implementation, and schematic diagrams of operation of preferred embodiments of the present utility model. , it can be clearly seen from the figure that the temperature control test device 30 is electrically connected to a control unit 50 for controlling the temperature control test device 30 to heat up or cool down, and it is intended to test the sample 40 placed on the platform 31 At first, the on-line control of the temperature control test device 30 is carried out by the control unit 50. If the relevant characteristics of the sample 40 at low temperature are to be tested, the motor (not shown) starts the compressor 351, and the low-pressure The low-temperature gaseous refrigerant 60 is compressed into a high-pressure and high-temperature gaseous refrigerant 60, and then the high-pressure, high-temperature gaseous refrigerant 60 is cooled by a cooling medium (air, water) into a high-pressure and medium-temperature liquid refrigerant 60 by the refrigerant condenser 352, and then passed through a refrigerant The controller (not shown in the figure) depressurizes the high-pressure medium-temperature liquid refrigerant 60 into a low-pressure medium-temperature liquid refrigerant 60. The purpose of decompression is to cooperate with the evaporation of the evaporator 354, so that the refrigerant 60 can evaporate at a low temperature at a low pressure, and finally pass through the evaporator 354 evaporates and absorbs heat from the low-pressure medium-temperature liquid refrigerant 60 into a low-temperature and low-pressure air-pressure refrigerant 60, which forms the refrigerant 60, and the refrigerant 60 fills the refrigerant pipe 35, so as to directly cool the heat dissipation base 34, and at the same time, the cooling chip 32 passes through The heat dissipation base 34 dissipates the heat energy 70 conducted by the sample surface of the cooling chip 32, so that the platform 31 reaches a lower temperature. Conversely, if the sample 40 is to be tested at a high temperature, the operation of the compressor 351 is stopped, that is, the refrigerant 60 is stopped. Then start the fan 37 to generate wind energy 71, so that the heat dissipation base 34 reaches room temperature, and at the same time, the heat dissipation base 34 extracts heat energy 70 and conducts it to the sample surface by the cooling chip 32, so that the temperature of the platform 31 reaches a higher range. Therefore, the sample The purpose of cooling and heating can be achieved directly through the platform 31 .

Claims (4)

1. the structure of a temperature control testing arrangement, it comprises one for placing the platform of desiring to carry out temperature control sample, this platform bottom attaches consistent cold core sheet, and this cooling chip is located on the cooling mechanism, it is characterized in that this cooling mechanism mainly comprises:

One cooling base that attaches mutually with this cooling chip is provided with the refrigerant pipe in this cooling base;

One is connected in the radiating fin group of this cooling base bottom; And

At least one fan of being located at this radiating fin group and this cooling base junction opposite side.

2. the structure of temperature control testing arrangement according to claim 1 is characterized in that: this refrigerant pipe connects a compressor, a refrigerant condenser, an expansion valve and an evaporimeter.

3. the structure of temperature control testing arrangement according to claim 1 is characterized in that: be full of refrigerant in this refrigerant pipe.

4. the structure of temperature control testing arrangement according to claim 1 is characterized in that: this temperature control testing arrangement electrically connects one for controlling the control module that this temperature control testing arrangement heats up or lowers the temperature.

Images