Adjustable constant temperature and humidity test box

Abstract

The utility model relates to an adjustable constant temperature and humidity test box, which relates to the technical field of constant temperature and humidity test boxes, and comprises a front box body and a rear box body, a test chamber is arranged in the front box body, an equipment chamber is arranged in the rear box body, the test chamber is movably provided with a group of workpiece brackets, a placing space is formed between the opposite surfaces of the workpiece brackets, and the equipment chamber is arranged in the placing space. The opposite faces of the workpiece supports are provided with sealing assemblies, the sealing assemblies are used for sealing the containing space, the sealing assemblies are jointly provided with an adjusting assembly, the adjusting assembly is used for adjusting the distance between the sealing assemblies, and the front box body and the rear box body are jointly provided with a control assembly. And the control assembly is used for controlling the temperature and humidity in the placement space. The device has the effect of reducing the energy waste of the constant temperature and humidity test.

Description

TECHNICAL FIELD

[0001] The utility model relates to constant temperature and humidity test chamber technical field especially is related to an adjustable constant temperature and humidity test chamber. BACKGROUND

[0002] Constant temperature and humidity test chamber is the equipment for detecting the performance of materials under various environments, and is also used to test the heat resistance, cold resistance, dry resistance and moisture resistance of various materials. It is a necessary testing equipment in the fields of aviation, automobile, household appliance and scientific research, and is used to test and determine the parameters and performance of electrical, electronic and other products and materials after temperature environment changes of high temperature, low temperature, alternating humidity and heat or constant test.

[0003] The related art has a constant temperature and humidity test chamber provided by a Chinese patent with the authorization announcement No. CN216321991U, which includes a shell having a mounting cavity with an opening facing forward, an inner container arranged in the mounting cavity, the inner container having a front accommodating cavity and a rear accommodating cavity communicating with each other, an upper cabinet door arranged on the opening of the mounting cavity, the upper cabinet door covering the opening of the front accommodating cavity, a tray support arranged in the front accommodating cavity, an evaporator and a fan arranged in the rear accommodating cavity, a humidifying barrel arranged in the mounting cavity, the output end of the humidifying barrel being in communication with the rear accommodating cavity, a test hole, an air inlet mesh and an air outlet arranged on the shell and communicating with the front accommodating cavity, and a humidity / temperature sensor arranged on the shell and extending into the front accommodating cavity. When in use, the product to be tested is placed in the front accommodating cavity, the evaporator, the fan and the humidifying barrel are controlled to work cooperatively, so that the front accommodating cavity is maintained at a set temperature and humidity, and the constant temperature and humidity test is performed on the product.

[0004] During the implementation of the present application, the inventors found that at least the following problems exist in the art: During the constant temperature and humidity test of the product, the internal space of the front accommodating cavity needs to be maintained at a set temperature and humidity condition, so that the product to be tested is in a constant temperature and humidity environment. Therefore, the larger the difference between the volume of the front accommodating cavity and the volume of the product to be tested, the higher the energy waste of the test chamber. UTILITY MODEL CONTENT

[0005] In order to reduce the energy waste of the constant temperature and humidity test, the present application provides an adjustable constant temperature and humidity test chamber.

[0006] The adjustable constant temperature and humidity test chamber provided by the present application adopts the following technical solution:

[0007] The adjustable constant temperature and humidity test box comprises a front box body and a rear box body, a test cavity is arranged in the front box body, an equipment cavity is arranged in the rear box body, a plurality of workpiece supports are movably arranged in the test cavity, a placing space is formed between opposite surfaces of the workpiece supports, sealing assemblies are arranged on opposite surfaces of the workpiece supports, the sealing assemblies are used for sealing the placing space, adjusting assemblies are arranged on the sealing assemblies, the adjusting assemblies are used for adjusting distances between the sealing assemblies, and control assemblies are arranged on the front box body and the rear box body, and the control assemblies are used for controlling temperature and humidity in the placing space.

[0008] By adopting the above technical scheme, according to the size of the product to be tested, the distance between the workpiece supports is adjusted by the adjusting assembly, so that the workpiece supports can clamp the product to be tested, then the placing space is sealed by the sealing assembly, and then the placing space is kept at a set temperature condition and humidity condition by the control assembly, so that the product to be tested is detected in a constant temperature and humidity environment. By adjusting the volume of the placing space, the energy waste of the constant temperature and humidity test is reduced.

[0009] Preferably, the front box body and the rear box body are fixedly connected, an opening is formed in the side of the front box body away from the rear box body, the opening and the placing space are in communication with each other, a box door is detachably arranged on the side of the front box body away from the rear box body, the box door is used for sealing the opening, and a heat preservation layer is arranged on the outer walls of the front box body, the rear box body and the box door.

[0010] By adopting the above technical scheme, the product in the placing space is taken out or placed in by detaching or assembling the box door, and the heat preservation layer preserves the test cavity and the equipment cavity.

[0011] Preferably, the sealing assembly comprises a sealing plate and a sealing rubber sleeve, the workpiece supports are connected with the sealing plate on the side away from the placing space, the adjusting assembly is connected with the sealing plate, the sealing rubber sleeve is sleeved on the sealing plate, the outer wall of the sealing rubber sleeve is used for abutting against the inner wall of the test cavity, and the outer wall of the sealing rubber sleeve is used for abutting against the outer wall of the box door.

[0012] By adopting the above technical scheme, the adjusting assembly drives the sealing plate to move, the sealing plate drives the workpiece supports and the sealing rubber sleeve to move, when the workpiece supports move to the appropriate position, the outer wall of the sealing rubber sleeve abuts against the inner wall of the test cavity and the outer wall of the box door, and the sealing effect of the placing space is achieved.

[0013] Preferably, a temperature insulation layer is arranged on the opposite surfaces of the sealing plate.

[0014] By adopting the above technical scheme, the temperature insulation layer preserves the placing space.

[0015] As preferred, the adjusting assembly comprises an adjusting motor, a forward screw rod, a reverse screw rod and an adjusting guide rod, the forward screw rod, the reverse screw rod and the adjusting guide rod are located in the test chamber, the adjusting motor is fixedly arranged on the front box body, an output shaft of the adjusting motor is fixedly connected with one end of the forward screw rod, the other end of the forward screw rod is fixedly connected with one end of the reverse screw rod, the other end of the reverse screw rod is rotationally connected with the front box body, an end wall of the adjusting guide rod is fixedly connected with the front box body, the forward screw rod is threadedly connected with one of the sealing plates, the reverse screw rod is threadedly connected with the other sealing plate, and the adjusting guide rod penetrates the sealing plate.

[0016] By adopting the above technical scheme, when the adjusting motor is started, the adjusting motor drives the forward screw rod and the reverse screw rod to rotate synchronously, so that the sealing plate moves relatively, and the sealing plate drives the sealing rubber sleeve to move.

[0017] As preferred, a sealing ring cavity is arranged in the sealing rubber sleeve, the sealing ring cavity is used for accommodating a sealing medium, a storage bag is arranged on the sealing plate, the storage bag is used for storing the sealing medium, an output pump and an input pump are arranged in communication on the storage bag, an input pipe is arranged in communication between an output end of the output pump and the sealing ring cavity, an input valve is arranged on the input pipe, an output pipe is arranged in communication between an input end of the input pump and the sealing ring cavity, and an output valve is arranged on the output pipe.

[0018] By adopting the above technical scheme, during the movement of the sealing plate, the sealing medium in the sealing ring cavity enters the storage bag through the output pipe and the input pump, at this time, the sealing rubber sleeve does not abut against the inner wall of the test chamber and the outer wall of the box door, so that the sealing plate is facilitated to move, when the sealing plate moves to a suitable position, the sealing medium in the storage bag enters the sealing ring cavity through the output pump and the input pipe, so that the outer wall of the sealing rubber sleeve abuts against the inner wall of the test chamber and the outer wall of the box door to achieve the sealing effect.

[0019] As preferred, the control assembly comprises an air inlet pipeline, an air outlet pipeline, an evaporator, an electric heating wire and a humidifier, one end of the air inlet pipeline and one end of the air outlet pipeline are in communication with the placing space, the other end of the air inlet pipeline and the other end of the air outlet pipeline are in communication with the equipment chamber, an air inlet fan is arranged in the air inlet pipeline, an air outlet fan is arranged in the air outlet pipeline, and the evaporator, the electric heating wire and the humidifier are arranged in the equipment chamber.

[0020] By adopting the above technical scheme, the evaporator, the electric heating wire and the humidifier work to control the temperature and humidity of the gas in the equipment chamber, the air inlet fan and the air outlet fan work to make the gas circulate in the placing space and the equipment chamber through the air inlet pipeline and the air outlet pipeline, so that the placing space is kept in the set temperature condition and humidity condition.

[0021] Preferably, the sealing assembly is away from the side of the placement space, and the device chamber, the isolation space and the placement space are communicated with a pressure stabilizing tube, and the pressure stabilizing tube is provided with a pressure stabilizing valve.

[0022] By adopting the technical scheme, the pressure inside the device chamber, the isolation space and the placement space is adjusted by controlling the opening and closing of the pressure stabilizing tube.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. By arranging the front box, the rear box, the test chamber, the device chamber, the workpiece support, the placement space, the sealing assembly, the adjusting assembly and the control assembly, the energy waste of the constant temperature and humidity test is reduced by adjusting the volume of the placement space.

[0025] 2. By arranging the sealing plate and the sealing rubber sleeve, the sealing effect of the placement space is achieved.

[0026] 3. By arranging the adjusting motor, the forward screw rod, the reverse screw rod and the adjusting guide rod, the distance between the sealing plates is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a sectional view of an adjustable constant temperature and humidity test chamber in the embodiment of the present application.

[0028] Figure 2 is a sectional view of the connection relationship between the sealing ring cavity and the storage bag in the embodiment of the present application.

[0029] Figure 3 is a sectional view of the connection relationship between the sealing plate and the front box in the embodiment of the present application.

[0030] Figure 4 is a sectional view of the connection relationship between the front box and the rear box in the embodiment of the present application.

[0031] MARKED FOR EXPLANATION: 1, front box; 11, test chamber; 12, opening; 13, box door; 2, rear box; 21, device chamber; 3, workpiece support; 31, placement space; 32, isolation space; 4, sealing assembly; 41, sealing plate; 411, temperature insulation layer; 42, sealing rubber sleeve; 421, sealing ring cavity; 5, adjusting assembly; 51, adjusting motor; 52, forward screw rod; 53, reverse screw rod; 54, adjusting guide rod; 6, control assembly; 61, air inlet pipeline; 611, air inlet fan; 62, air outlet pipeline; 621, air outlet fan; 63, evaporator; 64, electric heating wire; 65, humidifier; 7, storage bag; 71, output pump; 711, input pipe; 712, input valve; 72, input pump; 721, output pipe; 722, output valve; 8, heat preservation layer; 9, pressure stabilizing tube; 91, pressure stabilizing valve. DETAILED DESCRIPTION

[0032] The application is further described below in conjunction with the accompanying Figures 1-4 The application is further described below in conjunction with the accompanying

[0033] The application discloses an adjustable constant temperature and humidity test chamber. Referring to Figure 1 , comprising a front box body 1 and a rear box body 2, the front box body 1 and the rear box body 2 are installed together, the front box body 1 is provided with a test chamber 11, and the rear box body 2 is provided with a device chamber 21. An opening 12 is formed on the side of the front box body 1 away from the rear box body 2, the opening 12 and the test chamber 11 are in communication with each other, and a box door 13 is detachably arranged on the side of the front box body 1 away from the rear box body 2, and the box door 13 is used to close the opening 12. The outer walls of the front box body 1, the rear box body 2 and the box door 13 are all provided with a thermal insulation layer 8, the thermal insulation layer 8 is a polyurethane insulation board, and the thermal insulation layer 8 insulates the test chamber 11 and the device chamber 21. A group of workpiece supports 3 are movably arranged in the test chamber 11, the workpiece supports 3 are hollow supports, and placing spaces 31 are formed between opposite surfaces of the workpiece supports 3, the placing spaces 31 and the opening 12 are in communication with each other, and the products in the placing spaces 31 are taken out by means of disassembling and assembling the box door 13. The sealing assemblies 4 are installed on the opposite surfaces of the workpiece supports 3, and the sealing assemblies 4 are used to close the placing spaces 31. The side of the sealing assembly 4 away from the placing space 31 is an isolation space 32, the device chamber 21, the isolation space 32 and the placing space 31 are all communicated with a pressure stabilizing pipe 9, and a pressure stabilizing valve 91 is arranged on the pressure stabilizing pipe 9. The internal air pressure of the device chamber 21, the isolation space 32 and the placing space 31 is adjusted by controlling the opening and closing of the pressure stabilizing pipe 9. The adjusting assemblies 5 are jointly installed on the sealing assemblies 4, and the adjusting assemblies 5 are used to adjust the distance between the sealing assemblies 4. The control assemblies 6 are jointly installed on the front box body 1 and the rear box body 2, and the control assemblies 6 are used to control the temperature and humidity in the placing spaces 31. According to the size of the products to be tested, the distance between the workpiece supports 3 is first adjusted by the adjusting assemblies 5, so that the workpiece supports 3 can clamp the products to be tested. There is a gap between the products to be tested and the sealing assemblies 4, which is convenient for the products to be in a constant temperature and humidity environment. Then the placing spaces 31 are closed by the sealing assemblies 4, and then the placing spaces 31 are kept in the set temperature and humidity conditions by the control assemblies 6, so that the products to be tested are in a constant temperature and humidity environment for detection. The energy consumption of the constant temperature and humidity test is reduced by adjusting the volume of the placing space 31.

[0034] In order to realize the sealing effect of the placing space 31, referring to Figure 1 and Figure 2The sealing assembly 4 comprises a sealing plate 41 and a sealing rubber sleeve 42, and the adjusting assembly 5 is connected with the sealing plate 41. The workpiece support 3 is connected with the sealing plate 41 away from the placing space 31, and a thermal insulation layer 411 is installed on the back surface of the sealing plate 41. The thermal insulation layer 411 is an extruded plate, and the thermal insulation layer 411 insulates the placing space 31. The sealing rubber sleeve 42 is sleeved on the sealing plate 41, and the outer wall of the sealing rubber sleeve 42 is used to abut against the inner wall of the test chamber 11 and the outer wall of the box door 13. A sealing ring cavity 421 is formed in the sealing rubber sleeve 42, and the sealing ring cavity 421 is used to contain a sealing medium. The sealing plate 41 is provided with a storage bag 7, and the storage bag 7 is used to store the sealing medium. The storage bag 7 is provided with an output pump 71 and an input pump 72 in communication. The output end of the output pump 71 is connected with the sealing ring cavity 421 in communication through an input pipe 711, and the input pipe 711 is provided with an input valve 712. The input end of the input pump 72 is connected with the sealing ring cavity 421 in communication through an output pipe 721, and the output pipe 721 is provided with an output valve 722. The adjusting assembly 5 drives the sealing plate 41 to move, and the sealing plate 41 drives the workpiece support 3 and the sealing rubber sleeve 42 to move. During the movement of the sealing plate 41, the sealing medium in the sealing ring cavity 421 enters the storage bag 7 through the output pipe 721 and the input pump 72, and at this time, the sealing rubber sleeve 42 does not abut against the inner wall of the test chamber 11 and the outer wall of the box door 13, so as to facilitate the movement of the sealing plate 41. When the workpiece support 3 moves to a suitable position, the sealing medium in the storage bag 7 enters the sealing ring cavity 421 through the output pump 71 and the input pipe 711, so that the outer wall of the sealing rubber sleeve 42 abuts against the inner wall of the test chamber 11 and the outer wall of the box door 13, and the placing space 31 is sealed.

[0035] In order to adjust the distance between the sealing plates 41, with reference to Figures 1 to 3 The adjusting assembly 5 comprises an adjusting motor 51, a forward screw rod 52, a reverse screw rod 53 and an adjusting guide rod 54. The forward screw rod 52, the reverse screw rod 53 and the adjusting guide rod 54 are located in the test chamber 11, and the adjusting motor 51 is installed on the front box body 1. The output shaft of the adjusting motor 51 is welded with one end of the forward screw rod 52, the other end of the forward screw rod 52 is welded with one end of the reverse screw rod 53, the other end of the reverse screw rod 53 is rotationally connected with the front box body 1, and the end wall of the adjusting guide rod 54 is welded with the front box body 1. The forward screw rod 52 is threadedly connected with one of the sealing plates 41, the reverse screw rod 53 is threadedly connected with the other sealing plate 41, and the adjusting guide rod 54 penetrates through the sealing plates 41. After the adjusting motor 51 is started, the adjusting motor 51 drives the forward screw rod 52 and the reverse screw rod 53 to synchronously rotate, so as to relatively move the sealing plates 41, and the sealing plates 41 move the sealing rubber sleeve 42.

[0036] In order to keep the placing space 31 at a set temperature condition and humidity condition, with reference to Figures 1 to 4The control assembly 6 comprises an air inlet pipe 61, an air outlet pipe 62, an evaporator 63, an electric heating wire 64 and a humidifier 65. One end of the air inlet pipe 61 and one end of the air outlet pipe 62 are in communication with the placement space 31, and the other end of the air inlet pipe 61 and the other end of the air outlet pipe 62 are in communication with the equipment chamber 21. An air inlet fan 611 is installed in the air inlet pipe 61, and an air outlet fan 621 is installed in the air outlet pipe 62. The evaporator 63, the electric heating wire 64 and the humidifier 65 are installed in the equipment chamber 21. The evaporator 63, the electric heating wire 64 and the humidifier 65 work to control the temperature and humidity of the gas in the equipment chamber 21. The air inlet fan 611 and the air outlet fan 621 work to make the gas circulate between the placement space 31 and the equipment chamber 21 through the air inlet pipe 61 and the air outlet pipe 62, so that the placement space 31 is kept at the set temperature and humidity conditions.

[0037] The implementation principle of the adjustable constant temperature and humidity test chamber according to the embodiment of the application is as follows: first, the adjusting motor 51 is started to make the sealing plate 41 move relatively, and the sealing plate 41 moves to drive the sealing rubber sleeve 42 to move, so that the workpiece support 3 clamps the product to be tested. Then the sealing medium in the storage bag 7 enters the sealing ring cavity 421 through the output pump 71 and the input pipe 711, so that the outer wall of the sealing rubber sleeve 42 abuts against the inner wall of the test chamber 11 and the outer wall of the door 13, and the sealing effect of the placement space 31 is achieved. Then the evaporator 63, the electric heating wire 64 and the humidifier 65 work to control the temperature and humidity of the gas in the equipment chamber 21, and the air inlet fan 611 and the air outlet fan 621 work to make the gas circulate between the placement space 31 and the equipment chamber 21 through the air inlet pipe 61 and the air outlet pipe 62, so that the placement space 31 is kept at the set temperature and humidity conditions, and the product to be tested is kept in the constant temperature and humidity environment for detection. By adjusting the volume of the placement space 31, the energy waste of the constant temperature and humidity test is reduced.

[0038] The above are the preferred embodiments of the application, which do not limit the protection scope of the application. Any equivalent changes made according to the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. An adjustable constant temperature and humidity test chamber, comprising a front chamber body and a rear chamber body, a test chamber is arranged in the front chamber body, and an equipment chamber is arranged in the rear chamber body, characterized in that: The test chamber is movably provided with a plurality of workpiece supports, the workpiece supports are provided with placing spaces between opposite surfaces, the workpiece supports are provided with sealing assemblies on opposite surfaces, the sealing assemblies are used for sealing the placing spaces, the sealing assemblies are commonly provided with adjusting assemblies, the adjusting assemblies are used for adjusting distances between the sealing assemblies, the front box and the rear box are commonly provided with a control assembly, and the control assembly is used for controlling temperature and humidity in the placing spaces.

2. The adjustable constant temperature and humidity test chamber according to claim 1, characterized in that: The front box and the rear box are fixedly connected, the front box is provided with an opening away from the rear box, the opening and the placing space are in communication with each other, and the front box is detachably provided with a box door away from the rear box. The box door is used for sealing the opening. The front box, the rear box and the box door are all provided with thermal insulation layers.

3. The adjustable constant temperature and humidity test chamber according to claim 2, characterized in that: The sealing assembly comprises a sealing plate and a sealing rubber sleeve. The workpiece support is connected with the sealing plate away from the placing space. The adjusting assembly is connected with the sealing plate. The sealing rubber sleeve is sleeved on the sealing plate. The outer wall of the sealing rubber sleeve is used for abutting against the inner wall of the test chamber. The outer wall of the sealing rubber sleeve is used for abutting against the outer wall of the box door.

4. The adjustable constant temperature and humidity test chamber according to claim 3, characterized in that: The opposite surfaces of the sealing plate are provided with temperature insulation layers.

5. The adjustable constant temperature and humidity test chamber according to claim 3, characterized in that: The adjusting assembly comprises an adjusting motor, a forward screw rod, a reverse screw rod and an adjusting guide rod. The forward screw rod, the reverse screw rod and the adjusting guide rod are located in the test chamber. The adjusting motor is fixedly arranged on the front box. An output shaft of the adjusting motor is fixedly connected with one end of the forward screw rod. The other end of the forward screw rod is fixedly connected with one end of the reverse screw rod. The other end of the reverse screw rod is rotationally connected with the front box. An end wall of the adjusting guide rod is fixedly connected with the front box. The forward screw rod is threadedly connected with one of the sealing plates. The reverse screw rod is threadedly connected with the other sealing plate. The adjusting guide rod penetrates the sealing plates.

6. The adjustable constant temperature and humidity test chamber according to claim 3, characterized in that: The sealing rubber sleeve is provided with a sealing ring cavity. The sealing ring cavity is used for containing a sealing medium. The sealing plate is provided with a storage bag. The storage bag is used for storing the sealing medium. The storage bag is commonly provided with an output pump and an input pump. An input pipe is in communication between an output end of the output pump and the sealing ring cavity. The input pipe is provided with an input valve. An output pipe is in communication between an input end of the input pump and the sealing ring cavity. The output pipe is provided with an output valve.

7. The adjustable constant temperature and humidity test chamber according to claim 1, characterized in that: The control assembly comprises an air inlet pipeline, an air outlet pipeline, an evaporator, an electric heating wire and a humidifier. One end of the air inlet pipeline and one end of the air outlet pipeline are in communication with the placing space. The other end of the air inlet pipeline and the other end of the air outlet pipeline are in communication with the equipment chamber. An air inlet fan is arranged in the air inlet pipeline. An air outlet fan is arranged in the air outlet pipeline. The evaporator, the electric heating wire and the humidifier are arranged in the equipment chamber.

8. The adjustable constant temperature and humidity test chamber according to claim 7, characterized in that: The sealing assembly away from the placing space is an isolation space. The equipment chamber, the isolation space and the placing space are all provided with a pressure stabilizing pipe in communication. The pressure stabilizing pipe is provided with a pressure stabilizing valve.

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