Desktop type high and low temperature test equipment

Abstract

The utility model discloses desktop type high and low temperature test equipment, which comprises a box body and a test platform arranged on the box body, a refrigerating plate and a heating plate are arranged on the test platform in an overlapping manner, and a refrigerating unit is arranged in the box body to refrigerate the refrigerating plate. And an electric control cabinet is arranged at the upper end of the box body and is used for controlling the refrigerating or heating temperature of the refrigerating plate and the heating plate. According to the utility model, the test platform adopts an exposed design, so that high and low temperature tests can be carried out on products which cannot enter the box body or are inconvenient to test in the box body, the blank in the field is filled up, the test platform is worthy of wide popularization, and the universality of the test platform in use is improved at the same time.

Description

Technical Field

[0001] This utility model relates to the field of high and low temperature testing technology, specifically to a desktop high and low temperature testing device. Background Technology

[0002] Environmental simulation test chambers can be used to test the operating status of products under different environments. For example, temperature test chambers are used to test the stability of products under different temperature changes. Currently, high and low temperature testing equipment is mainly used for performance testing of products such as chips under different temperature conditions. However, some products are small in size, making it impossible to perform lead wire and wire replacement tests inside the chamber; some products have buttons on various surfaces, making it impossible to operate the buttons for functional testing inside the chamber. Therefore, existing high and low temperature testing equipment cannot meet the testing needs of these products. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a desktop high and low temperature testing device, which solves the problem that the existing high and low temperature testing devices cannot perform high and low temperature tests on products that are not convenient to enter the chamber.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A desktop high and low temperature testing device includes a housing and a testing platform mounted on the housing. A cooling plate and a heating plate are stacked on the testing platform. A refrigeration unit is installed inside the housing to cool the cooling plate. An electrical control cabinet is installed at the top of the housing to control the cooling or heating temperature of the cooling plate and the heating plate.

[0006] With the above structural design, the test platform adopts an exposed design and is cooled or heated by a cooling plate and a heating plate, thereby meeting the high and low temperature testing needs of products that cannot be put into the chamber or are inconvenient to be tested inside the chamber.

[0007] Preferably, the test platform is equipped with a removable protective cover.

[0008] With the above structural design, the protective cover can provide protection and dust protection, thereby improving the safety of operators.

[0009] Preferably, the test platform has an installation slot, and a heating plate is installed in the installation slot. The heating plate is electrically heated, and heating coils are evenly arranged inside the heating plate.

[0010] Preferably, a cooling plate is provided on the upper surface of the heating plate, and a cooling coil is built into the cooling plate. The two ends of the cooling coil protrude outside the cooling plate and are connected to the refrigeration unit to form a cooling circulation system.

[0011] Preferably, the cooling plate and the heating plate are fixedly connected by recessed screws.

[0012] Preferably, the cooling plate and the heating plate are cast aluminum plates with high thermal conductivity.

[0013] Preferably, the electrical control cabinet uses a PLC control system to control the cooling or heating temperature of the cooling plate and the heating plate, and the front face of the electrical control cabinet is equipped with a display control screen.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The test platform of this utility model adopts an exposed design, which can meet the high and low temperature testing needs of products that cannot be put into the chamber or are inconvenient to be tested in the chamber, filling the gap in this field and is worth promoting widely. At the same time, it improves the versatility of the equipment.

[0016] 2. The testing platform of this utility model uses a stacked cooling plate and a heating plate, which can be used for cooling and heating independently, thereby enabling rapid switching between cooling and heating. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure after the protective cover has been removed;

[0019] Figure 3 yes Figure 2 A schematic diagram of the structure with the cover plate removed;

[0020] Figure 4 This is a side sectional view of the present invention.

[0021] In the picture:

[0022] 1. Enclosure; 2. Test platform; 2a. Through hole; 2b. Cover plate; 3. Refrigeration plate; 3a. Refrigeration coil; 3b. Inlet; 3c. Outlet; 3d. Recessed hole; 4. Heating plate; 5. Refrigeration unit; 5a. Condensate collection pipe; 5b. Water collection tank; 6. Electrical control cabinet; 6a. Display and control panel; 7. Protective cover. Detailed Implementation

[0023] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Please see Figures 1 to 4 A desktop high and low temperature testing device includes a housing 1 and a testing platform 2 mounted on the housing 1. A cooling plate 3 and a heating plate 4 are stacked on the testing platform 2. The cooling plate 3 is positioned above the heating plate 4 and is in contact with it for heat conduction. In this embodiment, the cooling plate 3 and the heating plate 4 are fixedly connected by countersunk screws, and several countersunk holes 3d are provided on the cooling plate 3. The edges of both the cooling plate 3 and the heating plate 4 are chamfered by 1mm. A refrigeration unit 5 is installed inside the housing 1 to cool the cooling plate 3. An electrical control cabinet 6 is located at the upper end of the housing 1 to control the cooling or heating temperature of the cooling plate 3 and the heating plate 4. The testing temperature range of this high and low temperature testing device is -70℃ to +125℃.

[0026] In this embodiment, the electrical control cabinet 6 uses a PLC control system to control the cooling or heating temperatures of the cooling plate 3 and the heating plate 4. A display control screen 6a is provided on the front side of the electrical control cabinet 6. When a test temperature needs to be set, it can be set through the display control screen 6a, which also displays the temperature changes in real time. The PLC control system is a conventional control system and will not be described in detail here.

[0027] Furthermore, the test platform 2 is equipped with a detachable protective cover 7, which can be removed during use and serves as a dustproof cover when the equipment is not in use.

[0028] Please see Figure 3Specifically, the test platform 2 has an installation slot, in which a heating plate 4 is installed and fixed with bolts. In this embodiment, heating coils are evenly arranged inside the heating plate 4, so the heating plate 4 uses electric heating with a total heating power of 3 kW. The cooling plate 3 has a cooling coil 3a inside, and the cooling coils 3a are evenly arranged inside the cooling plate 3. The two ends of the cooling coil 3a are an inlet 3b and an outlet 3c, respectively, and the inlet 3b and outlet 3c protrude outside the cooling plate 3 and are connected to the refrigeration unit 5 to form a cooling circulation system. The test platform 2 has through holes 2a at the inlet 3b and outlet 3c to facilitate the connection between the cooling coil 3a and the refrigeration unit 5. A cover plate 2b is provided above the through hole 2a to protect the through hole 2a, the inlet 3b, and the outlet 3c. In this embodiment, the cooling coil 3a is a copper tube with a diameter of 10 mm.

[0029] In this embodiment, the cooling plate 3 and the heating plate 4 are cast aluminum plates with high thermal conductivity.

[0030] Please see Figure 4 The refrigeration unit 5 is equipped with a condensate collection pipe 5a, which is set at a certain angle at the bottom of the housing 1. The free end of the condensate collection pipe 5a is set at the rear end of the housing 1, and a water collection tank 5b is set at the outlet to collect the condensate. It can be cleaned periodically.

[0031] The working principle of this utility model is as follows:

[0032] This invention employs an open design for the testing platform 2, which utilizes a cooling plate 3 and a heating plate 4 to achieve both cooling and heating within a temperature range of -70℃ to +125℃. When low-temperature testing is required, the device can be configured with test connection lines according to testing needs. The product to be tested is placed on the cooling plate 3, and the cooling temperature can be set via the display control screen 6a. At this time, the refrigeration unit 5 starts working and achieves cooling through the cooling coil 3a, testing the product's functionality under the set low-temperature environment, thus completing the low-temperature test. When high-temperature testing is required, the heating temperature is set via the display control screen 6a, the refrigeration unit 5 stops working, and the heating plate 4 heats up electrically. Heat is transferred from the heating plate 4 to the cooling plate 3 above, testing the product's functionality under the set high-temperature environment, thus completing the high-temperature test. Therefore, this invention's open design not only allows testing of products that are inconvenient to enter the testing chamber, filling an industry gap, but also improves product testing efficiency due to its ease of use.

[0033] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A desktop high and low temperature testing device, characterized in that, It includes a housing (1) and a test platform (2) set on the housing (1). A cooling plate (3) and a heating plate (4) are stacked on the test platform (2). A refrigeration unit (5) is set inside the housing (1) to cool the cooling plate (3). An electrical control cabinet (6) is set at the upper end of the housing (1) to control the cooling or heating temperature of the cooling plate (3) and the heating plate (4).

2. The desktop high and low temperature testing device as described in claim 1, characterized in that, The test platform (2) is equipped with a removable protective cover (7).

3. The desktop high and low temperature testing device as described in claim 1, characterized in that, The test platform (2) is provided with an installation slot, and a heating plate (4) is installed in the installation slot. The heating plate (4) is electrically heated, and heating coils are evenly arranged in the heating plate (4).

4. The desktop high and low temperature testing device as described in claim 3, characterized in that, A cooling plate (3) is provided on the upper surface of the heating plate (4), and a cooling coil (3a) is built into the cooling plate (3). The two ends of the cooling coil (3a) protrude outside the cooling plate (3) and are connected to the refrigeration unit (5) to form a cooling circulation system.

5. A desktop high and low temperature testing device as described in claim 1, characterized in that, The cooling plate (3) and the heating plate (4) are fixedly connected by recessed screws.

6. The desktop high and low temperature testing device as described in claim 1, characterized in that, The cooling plate (3) and heating plate (4) are cast aluminum plates with high thermal conductivity.

7. A desktop high and low temperature testing device as described in claim 1, characterized in that, The electrical control cabinet (6) uses a PLC control system to control the cooling or heating temperature of the cooling plate (3) and the heating plate (4). The front end of the electrical control cabinet (6) is equipped with a display control screen (6a).

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