CN213886248U - High-precision constant temperature device - Google Patents
High-precision constant temperature device Download PDFInfo
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- CN213886248U CN213886248U CN202022262298.7U CN202022262298U CN213886248U CN 213886248 U CN213886248 U CN 213886248U CN 202022262298 U CN202022262298 U CN 202022262298U CN 213886248 U CN213886248 U CN 213886248U
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Abstract
The utility model provides a high-precision constant temperature device, which comprises a control box and a main box, wherein the control box is internally provided with a main control board, a control panel connected with the main control board, a motor, a heater and a temperature sensor, the bottom is fixedly connected with a pump installation shaft, the pump installation shaft extends downwards and is fixedly provided with a circulating pump at the bottom end, the main box comprises a box body and a box cover, the box body is internally provided with a compressor, a condenser, an electronic expansion valve and an evaporator which are connected in sequence to form internal circulation, the compressor is electrically connected to the main control board, the box cover is provided with an integrally formed water tank, the circulating pump is positioned in the water tank when the control box is fixed on the box cover of the main box, the circulating pump is respectively connected to two external circulation interfaces on the control box through pipelines, the temperature control in the chemical synthesis process can test electronic elements and materials at different temperatures, the temperature is accurate to +/-0.01, and the function of external circulation is achieved through the internal pressure and suction of the circulating pump.
Description
Technical Field
The utility model relates to a constant temperature equipment technical field especially relates to a high accuracy constant temperature equipment.
Background
The constant temperature circulating device, namely constant temperature circulating water bath and low temperature water bath, is designed and developed according to the needs of biomedical experimental research. It provides an ideal constant temperature source for experiments, and is widely applied to research departments such as petroleum, chemical engineering, metallurgy, medicine, biochemistry, physical property testing, chemical analysis and the like, colleges and universities, factories and laboratories and measurement and quality inspection departments. The device can be used for carrying out constant temperature experiments in a bath tank, can also be used as a constant temperature source to be matched with a measuring instrument requiring constant temperature, and is connected with other equipment through a hose, such as a rotary evaporator, an electrophoresis apparatus, a viscometer, a medical cold cap, a cooling blanket and the like; or used for cooling other equipment such as electron microscope, molecular pump, ion pump, diffusion pump, microwave therapeutic machine, etc.
Most of the existing constant-temperature circulating devices are at +/-0.1 ℃ in temperature control precision and only have internal circulation. When a user needs to connect liquid with an external device during testing, the product cannot complete the test of the client without external circulation, and the test time of the client is prolonged. Without internal and external circulation, special tests cannot be completed effectively, and the time of testers cannot be reduced effectively.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high accuracy constant temperature equipment aims at solving a lot of technical problem that all are at 0.1 ℃ on the temperature management and control precision of current constant temperature circulating device.
In order to achieve the above purpose, the utility model provides a high-precision constant temperature device, which comprises a control box and a main box,
the control box is internally provided with a main control board, a control panel, a motor, a heater and a temperature sensor, wherein the control panel, the motor, the heater and the temperature sensor are electrically connected to the main control board;
the main box comprises a box body and a box cover, wherein a compressor is arranged in the box body, the compressor is sequentially connected with a condenser, an electronic expansion valve and an evaporator through an internal pipeline, the tail end of the pipeline is connected to the compressor, the box cover is provided with an integrally formed water tank, and the water tank is positioned in the upper space position of the box body;
the frame with the bottom surface size looks adaptation of control box is seted up to the main tank case lid for the circulating pump is located the basin when the control box is fixed on the main tank case lid, and the circulating pump passes through the pipeline and is connected to two outer circulation interfaces on the control box respectively, and the compressor electricity is connected to the main control board.
Preferably, the heater comprises a connecting part and a spiral heating part, wherein the connecting part is arranged at two ends of the heater and is electrically connected to the main control board, and the spiral heating part is arranged at a position of a peripheral gap of the circulating pump.
Preferably, a buoy is arranged in a gap at the upper end of the circulating pump and fixed on a buoy guide pipe leading into the control box, a buoy counterweight ring is fixedly arranged at a position, upwards far away from the bottom of the control box, of the buoy guide pipe, a microswitch is correspondingly arranged at the bottom of the control box, and the microswitch is electrically connected to the main control board.
Preferably, the condenser laminating box setting, and the condenser keeps away from box one side and is equipped with radiator fan, and radiator fan electricity is connected to the main control board.
Preferably, the box body is hollow.
Preferably, one side of the control box, which is provided with the external circulation interface, is also provided with a cable waterproof connector and a power switch.
Preferably, the bottom of the water tank is provided with a small hole, the tank body is correspondingly provided with a pipe nozzle which is connected to the pipe nozzle of the tank body through a water pipe, and the pipe nozzle is provided with a pipe cap which is matched with the pipe nozzle and screwed down through threads.
Compared with the prior art, the utility model discloses possess following beneficial effect:
the utility model provides a high accuracy constant temperature equipment, including control box and main tank, be equipped with the main control board in the control box and with the control panel that the main control board is connected, including a motor, a heater and a temperature sensor, the heater can heat the water in the basin to appointed temperature, bottom fixedly connected with pump installation axle, pump installation axle downwardly extending and the bottom is fixed to be provided with the circulating pump, the main tank includes box and case lid, be equipped with the compressor, condenser, electronic expansion valve and the evaporimeter that connect gradually in the box and form the internal circulation, the compressor electricity is connected to the main control board, form the internal circulation in order to reach the water cooling refrigeration in the basin; the case lid has integrated into one piece's basin, and the circulating pump is located the basin when the control box is fixed on main case lid, and the circulating pump passes through two extrinsic cycle interfaces on the pipeline respectively being connected to the control box, can test electronic component and material, the temperature control in the chemical synthesis process reaches the function of an extrinsic cycle with the temperature accuracy to 0.01, through inherent pressure of circulating pump and suction under the different temperatures.
Drawings
Fig. 1 is a schematic view structure of the high-precision thermostatic device of the present invention;
FIG. 2 is a schematic view of the structure of the control box and the circulating pump of the high-precision thermostatic device of the present invention;
FIG. 3 is a schematic view of the electrical connection principle of the high-precision thermostatic device of the present invention;
fig. 4 is a schematic view of another view angle structure of the high-precision thermostatic device of the present invention;
fig. 5 is a schematic diagram of the calibration result of the high-precision thermostat of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
The middle temperature precision data of the utility model is from the calibration result in the calibration certificate (certificate number: RZD202003348) issued by the national measurement and test center of Guangdong province in south China, as shown in FIG. 5.
Referring to fig. 1-4, the utility model provides a high-precision constant temperature device, including control box 1 and main box 2, be equipped with main control board 18 and the electric control panel 17, motor 9, heater 8 and the temperature sensor 16 that are connected to main control board 18 in the control box 1, control box 1 surface is equipped with two outer circulation interfaces 110, bottom fixedly connected with pump installation axle 10, pump installation axle 10 extends downwards and the bottom is fixed and is provided with circulating pump 11, temperature sensor 16 extends to circulating pump 11 horizontal position downwards; the main box 2 comprises a box body 210 and a box cover 220, wherein a compressor 3 is arranged in the box body 210, the compressor 3 is sequentially connected with a condenser 5, an electronic expansion valve and an evaporator 4 through an internal pipeline, the tail end of the pipeline is connected to the compressor 3, the box cover 220 is provided with an integrally formed water tank 7, and the water tank 7 is positioned at a spatial position on the box body 210; the main box cover 220 is provided with a frame matched with the size of the bottom surface of the control box 1, so that when the control box 1 is fixed on the main box cover 220, the circulating pump 11 is positioned in the water tank 7, the circulating pump 11 is respectively connected to the two outer circulating interfaces 110 on the control box 1 through pipelines, and the compressor 3 is electrically connected to the main control board 18.
In this embodiment, the inner bottom of the main box 2 is provided with a refrigeration inner circulation structure, namely, a compressor 4-a condenser 5-a dry filter-an electronic expansion valve-an evaporator 4-a compressor 3, so as to achieve the purpose of cooling and refrigerating water in the water supply tank 7, when the control box 1 is connected to the main box cover 220, a heater 8, a circulation pump 11 and a temperature sensor 16 in the control box 1 are all positioned in the water tank 7, and the heater 8 is used for heating water in the water supply tank 7. When water is added into the water tank 7 and an external power supply is connected, a user can adjust the temperature on the control panel 17 according to the temperature required by the external experimental environment, the main control panel 18 controls the starting heater 8 to heat water in the water tank 7 or the starting compressor 3 to drive the internal refrigeration cycle so as to reduce the water temperature, the motor 9 is started to drive the circulating pump 11 to work, water with the appropriate temperature in the water tank 7 is pumped out from the circulating pump 11 and reaches the external circulation interface 110 on the main control box 1 through a pipeline, flows to another external circulation interface 110 on the main control box 1 through an external wiring and external equipment and then returns to the water tank 7, therefore, the effect of giving a constant temperature to the external equipment is achieved, and the temperature precision can be kept at about 0.01 ℃ through the connection and matching of the control box 1 and the main box 2, the sensitive sensing of the temperature sensor 16, the tight connection of the internal structure, the control and adjustment of the main control board 18 and the matching relation of the connection of the circulating pump 11 and the water tank 7.
Referring to fig. 2, the heater 8 includes a connecting portion 810 at both ends of the heater and a spiral heating portion 820, the connecting portion 810 is electrically connected to the main control board 18, and the spiral heating portion 820 is located at a position of a peripheral gap of the circulation pump 11. The heater 8 is fixed at the bottom of the control box 1, wherein the connecting part 810 is located in the control box 1 and used for electrically connecting to the main control board 18, the heating part 820 is located at the lower side of the bottom of the control box 1 and is wound into a spiral shape around the circulating pump 11, and after water is added into the water tank 7, the direct contact area of the heater and the water is increased, and the heating speed is increased.
Referring to fig. 2-3, a buoy 12 is arranged in a gap at the upper end of the circulating pump 11, the buoy 12 is fixed on a buoy guide pipe 13 leading into the control box 1, a buoy counterweight ring 14 is fixedly arranged at a position, upwards away from the bottom of the control box 1, of the buoy guide pipe 13, a micro switch 15 is correspondingly arranged at the bottom of the control box 1, and the micro switch 15 is electrically connected to a main control board 18. Buoy pipe 13 and 1 bottom gap junction of control box, when the surface of water in the basin 7 is high or low, buoy 12 follows the surface of water and reciprocates at the surface of water, thereby drive buoy pipe 13 up-and-down motion, when the surface of water is less than the safe value of setting, buoy pipe 13 drives the fixed buoy counterweight ring 14 downstream that sets up at buoy pipe 13 suitable position thereby trigger micro-gap switch 15 open, trigger switch is with information transfer to control panel 17 on the display screen, or send warning prompt tone or flashing lamp, in order to reach safety, the purpose of high accuracy.
Referring to fig. 1 and 3, the condenser 5 is attached to the box 210, and a heat dissipation fan 6 is disposed on a side of the condenser 5 away from the box 220, wherein the heat dissipation fan 6 is electrically connected to the main control board 18. The condenser 5 is attached to the box body 220, and is in indirect or direct contact with the water tank 7 to the maximum extent, and the wind direction of the cooling fan 6 blows the condenser 5, so that the whole internal circulation refrigeration speed and effect are more excellent.
Referring to fig. 4, holes are formed around the box 220, and the box 220 is hollow 213. The internal heat of the high-precision constant temperature device is accelerated to be dissipated outwards, and the refrigeration effect is improved.
Referring to fig. 1, a cable waterproof connector 120 and a power switch 130 are further disposed on one side of the control box 1 where the external circulation interface 110 is disposed. The external circulation interface 110 is arranged on the opposite surface of the control panel 17, and meanwhile, the cable waterproof connector 120 is also arranged on the surface, so that the safety is improved when a power supply is externally connected, and the power switch 130 is arranged on the rear side of the control panel 17, so that the appearance visibility of the whole high-precision constant temperature device is improved.
Referring to fig. 1, a small hole 710 is opened at the bottom of the water tank 7, the tank 220 is correspondingly provided with a nozzle 211, connected to the nozzle 211 of the tank through a water pipe, and the nozzle 211 is provided with a pipe cap 212 which is adapted to be screwed tightly through a screw thread. When the circulating water in the water tank 7 needs to be replaced, the original circulating water can flow out from the small hole 710 of the water tank by only turning off the power supply and unscrewing the pipe cap 212, and the circulating water directly flows out of the main tank 2 from the pipe nozzle 211 through the water pipe.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (7)
1. A high-precision constant temperature device is characterized by comprising a control box and a main box,
the control box is internally provided with a main control board, a control panel, a motor, a heater and a temperature sensor, wherein the control panel, the motor, the heater and the temperature sensor are electrically connected to the main control board;
the main box comprises a box body and a box cover, wherein a compressor is arranged in the box body, the compressor is sequentially connected with a condenser, an electronic expansion valve and an evaporator through an internal pipeline, the tail end of the pipeline is connected to the compressor, the box cover is provided with an integrally formed water tank, and the water tank is positioned in the upper space position of the box body;
the frame with the bottom surface size looks adaptation of control box is seted up to the main tank case lid for the circulating pump is located the basin when the control box is fixed on the main tank case lid, and the circulating pump passes through the pipeline and is connected to two outer circulation interfaces on the control box respectively, and the compressor electricity is connected to the main control board.
2. The high-precision thermostatic device according to claim 1, wherein the heater comprises a connecting part and a spiral heating part, the connecting part is electrically connected to the main control board, and the spiral heating part is located at a position of a peripheral gap of the circulating pump.
3. The high-precision thermostatic device according to claim 1, wherein a buoy is arranged in a gap at the upper end of the circulating pump, the buoy is fixed on a buoy guide pipe leading into the control box, a buoy counterweight ring is fixedly arranged at a position, upwards away from the bottom of the control box, of the buoy guide pipe, a microswitch is correspondingly arranged at the bottom of the control box, and the microswitch is electrically connected to the main control board.
4. The high-precision thermostatic device according to claim 1, wherein the condenser is attached to the box, and a heat dissipation fan is disposed on a side of the condenser away from the box, the heat dissipation fan being electrically connected to the main control board.
5. A high-precision constant temperature device according to claim 4, wherein the box body is hollowed out.
6. A high-precision thermostatic device according to claim 1, wherein the side of the control box provided with the external circulation interface is also provided with a cable waterproof connector and a power switch.
7. The high-precision thermostatic device according to claim 1, wherein the bottom of the water tank is provided with a small hole, the tank body is correspondingly provided with a nozzle which is connected to the nozzle of the tank body through a water pipe, and the nozzle is provided with a matched pipe cap which is screwed tightly through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022262298.7U CN213886248U (en) | 2020-10-13 | 2020-10-13 | High-precision constant temperature device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022262298.7U CN213886248U (en) | 2020-10-13 | 2020-10-13 | High-precision constant temperature device |
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| CN213886248U true CN213886248U (en) | 2021-08-06 |
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| CN202022262298.7U Active CN213886248U (en) | 2020-10-13 | 2020-10-13 | High-precision constant temperature device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377744A (en) * | 2022-01-25 | 2022-04-22 | 威乐(中国)水泵系统有限公司 | Water pump simulation environment multifunctional test bench |
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2020
- 2020-10-13 CN CN202022262298.7U patent/CN213886248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377744A (en) * | 2022-01-25 | 2022-04-22 | 威乐(中国)水泵系统有限公司 | Water pump simulation environment multifunctional test bench |
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