CN213669330U

CN213669330U - Miniature quick temperature change experimental box

Info

Publication number: CN213669330U
Application number: CN202021888896.9U
Authority: CN
Inventors: 刘明杰; 桑梓航; 陈俊生; 彭祥友; 刘子杨; 王维维; 朴昌浩
Original assignee: Chongqing Artest Can Science And Technology Co ltd; Chongqing University of Post and Telecommunications
Current assignee: Chongqing Artest Can Science And Technology Co ltd; Chongqing University of Post and Telecommunications
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-07-13
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a miniature quick temperature becomes experimental box, machine case room, studio, the electric room including the device. The machine case chamber is internally provided with components of a refrigerating unit, such as a totally-enclosed rotary motor compressor, an electric appliance control cabinet, an electronic expansion valve, a capillary tube, an electromagnetic valve for cooling the compressor and the like. Be provided with safe isolation steel sheet with in the studio, the studio cabinet door passes through damping hinge swing joint with the studio main part, through the magnetic stripe actuation, inside has set up the illumination with quick temperature change experimental box system state demonstration and the LED lamp of 4 kinds of differences of reporting to the police, but user of service passes through the real time monitoring image clear observation studio state of transmitting the big screen of well accuse through the anti-fogging glass who inlays in the cabinet door or miniature camera. The bottom of the electric room is fixedly provided with a TMS control panel of a system core, and the TMS control panel is communicated with a central control large screen at the top of the machine box room in real time through a USB-CAN (universal serial bus-controller area network) module. The configuration is suitable for the application of the rapid temperature change experimental box and has wide application prospect.

Description

Miniature quick temperature change experimental box

Technical Field

The utility model relates to an experimental facilities technical field specifically is a miniature quick temperature change experimental box.

Background

The miniature quick temperature change experiment box is suitable for safety performance tests of electronic components under quick temperature change conditions, and provides reliability experiments, product screening experiments and the like. However, the experiment needs a very high temperature rise and fall rate, the cost is high, and the temperature rise and fall rate of the environmental experiment box is high, and the steady-state error and fluctuation at the target temperature are small, so that the traditional rapid temperature change experiment box is difficult to meet the requirements, and therefore, the optimization of the rapid temperature change experiment box is very necessary. The traditional rapid temperature change experimental box has the following defects:

(1) the temperature rising and falling rate of the rapid temperature change experiment box is unsatisfactory, the working chamber needs a long time to reach the specified temperature, and the energy consumption is high;

(2) the rapid temperature change experiment box has large fluctuation at a target temperature and large steady-state error of the system;

(3) the rapid temperature change experiment box cannot display the state of each working part in real time;

(4) the rapid temperature change experiment box has the advantages of single function, incomplete man-machine interaction function, inconvenience in use and low equipment utilization rate.

Disclosure of Invention

In view of this, the utility model provides a miniature quick temperature change experimental box, the foretell not enough in the prior art is solved to the purpose.

The utility model adopts the technical proposal that: a miniature rapid temperature change experiment box comprises a machine box chamber, a working chamber and an electric chamber, wherein a compressor, a refrigerant high-pressure side temperature and pressure sensor, a condenser, a drying filter, a refrigerant compressor cooling loop electromagnetic valve, a capillary tube, a refrigerant low-pressure side temperature and pressure sensor, a refrigerant refrigeration electromagnetic valve and an electronic expansion valve are arranged in the machine box chamber;

the outlet end of the compressor is connected with one end of a condenser, the outlet of the condenser is connected with the first end of a drying filter, the second end of the drying filter is connected in series with a refrigerant refrigeration electromagnetic valve and an electronic expansion valve and then enters a working chamber to be connected with one end of an evaporator, and the other end of the evaporator is connected with the inlet of the compressor to form a refrigeration loop. The inlet of the compressor is provided with a refrigerant low-pressure side temperature and pressure sensor, and the outlet of the compressor is provided with a refrigerant high-pressure side temperature and pressure sensor. The second end of the drying filter is also connected with the inlet of the compressor after being connected with the electromagnetic valve of the cooling loop of the refrigerant compressor and the capillary tube in series, thus forming a cooling protection loop of the compressor.

Compared with the prior art, the utility model, have following advantage:

(1) miniature quick temperature change experimental box set up compressor cooling circuit solenoid valve and capillary return circuit for the refrigerant, can be when promoting the speed of heating and cooling, protect the compressor device.

(2) Miniature quick temperature change experimental box set up the totally closed rotary motor compressor of rotational speed adjustable, the controllable heater of heating time and the controllable electronic expansion valve of aperture can reduce the system at the steady state error of target temperature for system response speed is and more energy-conserving.

(3) Miniature quick temperature change experimental box set up accuse large screen and core control ware TMS in can programme, each part state of signal input collection system of accessible core control ware TMS shows each part state through the big screen of well accuse to accuse large screen change system temperature state in the accessible, look over system history state, derive system failure alarm state etc..

Drawings

Fig. 1 is a schematic overall appearance of the present invention;

fig. 2 is a schematic view of the inside of the cabinet of the present invention;

fig. 3 is a schematic view of the interior of the working chamber and the electrical room of the present invention;

in the figure: 1-a cabinet chamber; 2-a working chamber; 3-an electrical room; 4-large central control screen; 5-a compressor; 6-refrigerant high-pressure side temperature and pressure sensor; 7-a condenser; 8-drying the filter; 9-refrigerant compressor cooling loop electromagnetic valve; 10-a capillary tube; 11-refrigerant low-pressure side temperature and pressure sensor; 12-refrigerant refrigeration electromagnetic valve; 13-an electronic expansion valve; 14-heat dissipation holes; 15-cabinet door; 16-a damped hinge; 17-an evaporator; 18-a studio fan; 19-a heater; 20-a humidity sensor; 21-an LED lamp; 22-rubber plug; 23-a program download interface; 24-a retractable armrest; 25-a power switch; 26-a power conversion module; 27-core controller TMS; 28-a voltage stabilizing module; 29-USB to CAN module; 30-electrical room heat dissipation hole; 31-power interface holes; 32-supporting the feet.

Detailed Description

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings described in the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

As shown in the attached drawings, the utility model comprises: a cabinet room 1, a working room 2 and an electric room 3. The utility model discloses through the pipe connection between each part in well refrigeration circuit and the compressor cooling protection return circuit.

The utility model discloses in, machine case room 1 is the partial refrigerating unit of system this, inside is provided with totally closed rotary motor compressor 5, refrigerant high pressure side temperature and pressure sensor 6, condenser (take condensing fan) 7, drier-filter 8, compressor cooling circuit solenoid valve 9 for the refrigerant, capillary 10, refrigerant are with refrigeration solenoid valve 12, electronic expansion valve 13, evaporimeter 17 (set up in the studio), studio fan 18 (set up in the studio), refrigerant low pressure side temperature and pressure sensor 11, constitute a refrigeration circuit and a compressor cooling protection return circuit. The upper part of the case room 1 is provided with a central control large screen 4, and the central control large screen 4 is movably connected with the case room 1 through a hinge to perform man-machine interaction. The internal base of the case chamber 1 is provided with a totally-enclosed rotary motor compressor 5, the compressor 5 is fixedly connected with the internal base of the case chamber 1, the internal of the case chamber 1 is provided with a refrigerant high-pressure side temperature and pressure sensor 6, the refrigerant high-pressure side temperature and pressure sensor 6 is arranged at the outlet of the compressor 5, the internal back side of the case chamber 1 is fixed with a condenser 7, the condenser 7 is connected with the outlet of the compressor 5, the internal of the case chamber 1 is provided with a drying filter 8, the drying filter 8 is connected with the outlet of the condenser 7, the refrigerant is connected with the outlet of the drying filter 8 through a compressor cooling loop electromagnetic valve 9, a capillary tube 10 is connected with the refrigerant through the compressor cooling loop electromagnetic valve 9, and then is connected with the inlet of the compressor 5, so as. A refrigerant low-pressure side temperature and pressure sensor 11 is arranged in the machine box chamber 1, and the refrigerant low-pressure side temperature and pressure sensor 11 is arranged at an inlet of the compressor 5. The refrigeration electromagnetic valve 12 for the refrigerant is arranged in the machine box chamber 1, the refrigeration electromagnetic valve 12 for the refrigerant is also connected with the outlet of the drying filter 8, the electronic expansion valve 13 is arranged in the machine box chamber 1, the electronic expansion valve 13 is connected with the outlet of the refrigeration electromagnetic valve 12 for the refrigerant, then the electronic expansion valve enters the working chamber 2 to be connected with the evaporator 17, and the outlet of the evaporator 17 is connected with the inlet of the compressor 5. The heat dissipation holes 14 are arranged at the bottom of the chassis chamber and used for dissipating heat of core components in the chassis chamber so as to keep the optimal working state of the components. Further, a damping rubber pad is arranged outside the refrigeration loop pipeline in the machine box chamber 1 to perform damping and noise reduction treatment.

The utility model discloses in, studio 2 is the system test room for this, and studio 2 is preceding to be provided with cabinet door 15, and cabinet door 15 passes through damping hinge 16 and 2 swing joint in studio, through left side magnetic stripe and studio actuation. The device is also provided with an evaporator 17, a working chamber fan 18, a heater 19, a

humidity sensor

20, 4 LED lamps 21 with different colors, rubber stoppers 22, a program downloading interface 23 and a telescopic handrail 24. The studio fan 18 is arranged near the evaporator 17, for example to the left of the evaporator. The heater 19 is disposed below the evaporator 15. Humidity transducer 20 inlays with studio 2 interior left side wall and is connected, and 4 LED lamps 21 are inlayed in studio 2 top. The right side wall of the working chamber 2 is provided with a rubber plug 22 which is embedded in the right side wall of the working chamber 2 of the device. The program download interface 23 is arranged on the right side of the studio 2. The top parts of the case room 1 and the working room 2 are provided with telescopic handrails 24 which are movably connected with the top parts of the case room 1 and the working room 2.

In the present invention, a core controller TMS (thermal management system)27 and a power conversion module 26 are disposed in the electrical room 3, and the core controller TMS 27 and the power conversion module 26 are fixedly connected to the bottom of the electrical room 3. The power supply conversion module 26 provides a 12V power supply, a 12V power supply and a 24V power supply for the core controller TMS 27, the central control large screen 4 and the compressor, respectively. The voltage stabilizing module 28 is fixedly connected with the bottom inside the electrical room 3, and the core controller TMS 27 provides a stable direct current rotating speed control voltage for the compressor through the voltage stabilizing module 28. And a USB-CAN conversion module 29 is fixedly arranged at the bottom in the electric room 3. The central control large screen 4 is connected with a USB-to-CAN module 29 through a shielding twisted pair, and the USB-to-CAN module 29 is connected with the core controller TMS 27 through a signal line. A metal button power switch 25 is provided on the front surface of the electrical room 3 and embedded in the side wall of the electrical room 3. The back is provided with an electrical room heat dissipation hole 30 and a power interface hole 31, and the bottom of the device is provided with a supporting leg 32 for supporting the device. The following chip models, core controller chips, may be employed in this embodiment: MPC5602B, power conversion module chip: TL494, voltage stabilizing module chip: PAC5210, USB to CAN module chip: stm32f 103.

The fixed connection which is not specified can be a connection mode such as riveting, welding, bolt connection and the like, a movable connection can be a connection mode such as hinging and the like.

Claims

1. The utility model provides a miniature quick temperature becomes experimental box, includes quick-witted case room (1), studio (2) and electric room (3), its characterized in that: the refrigerator is characterized in that a compressor (5), a refrigerant high-pressure side temperature and pressure sensor (6), a condenser (7), a drying filter (8), a compressor cooling loop electromagnetic valve (9) for the refrigerant, a capillary tube (10), a refrigerant low-pressure side temperature and pressure sensor (11), a refrigeration electromagnetic valve (12) for the refrigerant and an electronic expansion valve (13) are arranged in the refrigerator chamber (1), the compressor (5) is fixed on a base in the refrigerator chamber (1), the condenser (7) is fixed on the back side in the refrigerator chamber (1), an evaporator (17), a working chamber fan (18) and a heater (19) are arranged in the working chamber (2), a power module (26), a core controller TMS (27), a voltage stabilizing module (28) and a USB-to-CAN (controller area network) module (29) are arranged in the electric chamber (3), and all the modules are fixed at the bottom of the;

the outlet end of the compressor (5) is connected with one end of a condenser (7), the outlet of the condenser (7) is connected with the first end of a drying filter (8), the second end of the drying filter (8) is connected with a refrigeration electromagnetic valve (12) for a refrigerant and an electronic expansion valve (13) in series and then enters the working chamber (2) to be connected with one end of an evaporator (17), the other end of the evaporator (17) is connected with the inlet of the compressor (5), a refrigerant low-pressure side temperature and pressure sensor (11) is arranged at the inlet of the compressor (5), and a refrigerant high-pressure side temperature and pressure sensor (6) is arranged at the outlet of the compressor (5); the second end of the drying filter (8) is also connected with the inlet of the compressor (5) after being connected with a cooling loop electromagnetic valve (9) and a capillary tube (10) of the refrigerant in series.

2. The miniature rapid temperature change experimental box of claim 1, which is characterized in that: the upper part of the machine box chamber (1) is provided with a central control large screen (4), and the central control large screen (4) is movably connected with the machine box chamber (1).

3. The miniature rapid temperature change experimental box according to claim 1 or 2, wherein: the bottom of the case room (1) is provided with heat dissipation holes (14).

4. The miniature rapid temperature change experimental box of claim 1, which is characterized in that: a cabinet door (15) is arranged in front of the working chamber (2), and the cabinet door (15) is movably connected with the working chamber (2) through a damping hinge (16).

5. The miniature rapid temperature change experimental box according to claim 1 or 4, wherein: a humidity sensor (20) is arranged in the working chamber (2), and the humidity sensor (20) is embedded in the side wall of the working chamber (2); the LED lamp (21) is arranged inside the working chamber (2), and the LED lamp (21) is embedded in the top of the working chamber (2).

6. The miniature rapid temperature change experimental box of claim 5, which is characterized in that: the outer side wall of the working chamber (2) is provided with a rubber plug (22) and a program downloading interface (23).

7. The miniature rapid temperature change experimental box of claim 6, which is characterized in that: and telescopic handrails (24) are respectively arranged at the tops of the working chamber (2) and the chassis chamber (1).

8. The miniature rapid temperature change experimental box according to claim 1, 2, 4, 6 or 7, wherein: and a power switch (25) is arranged outside the electric room (3).

9. The miniature rapid temperature change experimental box of claim 8, wherein: the back of the electric room (3) is provided with an electric room heat dissipation hole (30) and a power interface hole (31).

10. The miniature rapid temperature change experimental box of claim 9, wherein: the bottom of the experimental box is provided with a supporting leg (32).