CN215843041U

CN215843041U - Slope type cold accumulation and rapid temperature rise and fall test box

Info

Publication number: CN215843041U
Application number: CN202122440847.XU
Authority: CN
Inventors: 陈柏尧; 杨福源
Original assignee: DONGGUAN TERCHY TEST EQUIPMENT CO LTD
Current assignee: DONGGUAN TERCHY TEST EQUIPMENT CO LTD
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-02-18
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses a slope type cold accumulation and rapid temperature rise and drop test box which comprises a case, wherein a test cavity, a refrigerating unit, a heating groove and a low-temperature groove are arranged in the case, a PID (proportion integration differentiation) controller is also arranged in the case, a first heater is arranged in the heating groove, a first valve is arranged at the front end of the heating groove, the low-temperature groove is communicated with the refrigerating unit, a second valve and a third valve are respectively arranged on two sides of the low-temperature groove, the first valve and the second valve are electric control valves, and the third valve is controlled to be switched on and off through a servo motor. The utility model can keep the test box at a stable slope for heating or cooling, and test the product at the temperature of stable lifting rate.

Description

Slope type cold accumulation and rapid temperature rise and fall test box

Technical Field

The utility model relates to the technical field of constant temperature and humidity test boxes, in particular to a slope type cold accumulation and rapid temperature rise and fall test box.

Background

The constant temperature and humidity test box is also called a constant temperature and humidity tester, a constant temperature and humidity test box, a programmable humidity-heat alternating test box, a constant temperature machine or a constant temperature and humidity box, is used for detecting the performance of materials in various environments and testing the heat resistance, cold resistance, dry resistance and humidity resistance of various materials. The device is suitable for detecting the quality of products such as electronics, electrical appliances, mobile phones, communication, instruments, vehicles, plastic products, metal, food, chemistry, building materials, medical treatment, aerospace and the like.

Current experimental box is when going up and down the temperature, and the lifting rate of temperature is unstable, and sudden intensification or cooling all can influence the effect of product experiment, for this reason, need research and development a proof box that the temperature stabilized goes up and down, promote the experimental effect of product.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a slope type cold accumulation and rapid temperature rise and drop test box, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a slope formula cold-storage fast rising and falling temperature test box, includes quick-witted case, quick-witted incasement is provided with test chamber, freezing unit, heating groove and low temperature groove, machine incasement still is provided with the PID controller, be provided with first heater in the heating groove, the heating groove front end is provided with first valve, the low temperature groove is linked together with freezing unit, the low temperature groove both sides are provided with second valve and third valve respectively, and wherein first valve is the electric control valve with the second valve, the third valve passes through servo motor control switch.

Preferably, an evaporator and a second heater are arranged in the low-temperature groove, and an air supply assembly is arranged at the side end of the low-temperature groove.

Preferably, a plurality of test slots are disposed in the test cavity.

Preferably, a plurality of groups of air supply assemblies are arranged at the side end of the test cavity.

Preferably, a control panel is arranged on the case, and the control panel is electrically connected with the refrigerating unit, the PID controller, the first heater, the second heater, the evaporator, the first valve, the second valve, the third valve and the plurality of groups of air supply assemblies.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, by arranging the first heater and the PID controller, during heating, the first valve is opened, the second valve and the third valve are closed, the temperature in the test cavity is monitored by the PID controller, the heating power of the first heater is controlled, the generated hot air circulates in the test cavity through the multiple groups of air supply assemblies, and the test cavity can be subjected to slope type stable temperature rise by the hot air; through setting up the low temperature groove, the low temperature groove is linked together with the refrigerating unit, and the refrigerating unit refrigeration, refrigerating unit output cold wind to store in the low temperature groove, during the cooling, first valve is closed, and second valve and third valve are opened, and cold wind sends into the test chamber through the air supply subassembly, and monitors the test intracavity temperature through the PID controller, through the size of controlling the third valve, reaches the control amount of wind, and cold wind carries out the stable cooling of slope formula in the test chamber.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a line graph of the temperature within the test chamber of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to fig. 2, an embodiment of the present invention includes: the utility model provides a slope formula cold-storage fast rising and falling temperature test box, includes quick-witted case 1, be provided with test chamber 2, freezing unit 3, heating tank 4 and cryogenic tank 5 in the quick-witted case 1, still be provided with PID controller (not shown in the drawing) in the machine case 1, be provided with first heater 6 in the

heating tank

4, 4 front ends in heating tank are provided with first valve 7, cryogenic tank 5 is linked together with

freezing unit

3, 5 both sides in cryogenic tank are provided with second valve 8 and third valve 9 respectively, and wherein first valve 7 and second valve 8 are the automatically controlled valve, third valve 9 passes through servo motor (not shown) control switch, and servo motor is steerable.

Preferably, an evaporator 10 and a second heater 11 are arranged in the low-temperature tank 5, and an air supply assembly is arranged at the side end of the low-temperature tank 5, wherein if the temperature in the low-temperature tank 5 is too low, frost is easily generated, and the second heater 11 heats the frost for defrosting, so that the refrigerating unit 3 and the evaporator 10 can stably work.

Preferably, a plurality of test slots 12 are disposed in the test cavity 2, and the test slots 12 are used for placing products therein.

Preferably, a plurality of groups of air supply assemblies are arranged at the side end of the test cavity 2.

Preferably, a control panel 13 is arranged on the cabinet 1, and the control panel 13 is electrically connected with the refrigerating unit 3, the PID controller, the first heater 6, the second heater 11, the evaporator 10, the first valve 7, the second valve 8, the third valve 9 and multiple sets of air supply assemblies.

Wherein, the air supply component comprises a motor 14 and an air drum 15 connected with the output end of the motor 14,

the working principle is as follows: during work, when the temperature measuring device is used for heating, the first valve 7 is opened, the second valve 8 and the third valve 9 are closed, the temperature in the testing cavity 2 is monitored through the PID controller, the heating power of the first heater 6 is controlled, generated hot air circulates in the testing cavity 2 through a plurality of groups of air supply assemblies at the side end of the testing cavity 2, and the testing cavity 2 can be subjected to slope type stable temperature rise through the hot air; during cooling, the first valve 7 is closed, the second valve 8 and the third valve 9 are opened, cold air is sent into the testing cavity 2 through the air supply assembly at the side end of the low-temperature groove 5, the temperature in the testing cavity 2 is monitored through the PID controller, the effect of controlling the air volume is achieved by controlling the opening and closing of the third valve 8, and slope type stable cooling is carried out on the cold air in the testing cavity 2.

Referring to fig. 3, a line graph showing the temperature change in the test chamber 2 in this embodiment is shown.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a slope formula cold-storage test box that rises and falls fast, includes quick-witted case, its characterized in that: the testing device comprises a machine case, and is characterized in that a testing cavity, a refrigerating unit, a heating tank and a low-temperature tank are arranged in the machine case, a PID (proportion integration differentiation) controller is further arranged in the machine case, a first heater is arranged in the heating tank, a first valve is arranged at the front end of the heating tank, the low-temperature tank is communicated with the refrigerating unit, a second valve and a third valve are respectively arranged on two sides of the low-temperature tank, the first valve and the second valve are electric control valves, and the third valve is controlled to be switched on and off through a servo motor.

2. The slope type cold accumulation and rapid temperature rise and drop test box according to claim 1, wherein: an evaporator and a second heater are arranged in the low-temperature groove, and an air supply assembly is arranged at the side end of the low-temperature groove.

3. The slope type cold accumulation and rapid temperature rise and drop test box according to claim 1, wherein: a plurality of test slots are disposed within the test cavity.

4. The slope type cold accumulation and rapid temperature rise and drop test box according to claim 1 or 3, wherein: and a plurality of groups of air supply assemblies are arranged at the side end of the test cavity.

5. The slope type cold accumulation and rapid temperature rise and drop test box according to claim 1, wherein: the refrigerator is characterized in that a control panel is arranged on the cabinet, and the control panel is electrically connected with the refrigerating unit, the PID controller, the first heater, the second heater, the evaporator, the first valve, the second valve, the third valve and the multiple groups of air supply assemblies.