High and low temperature damp heat test box with anti-condensation structure

Abstract

The utility model discloses a high and low temperature damp heat test chamber of anti-condensation structure, including test chamber body and a plurality of filter cartridge, the inside of test chamber body is provided with the top casing, the bottom surface of casing is provided with a plurality of locating mouth of rectangular structure, locating shaft is provided in each locating mouth, one end of each locating shaft is equipped with the top cover, and the top cover is equipped with the bottom cover. The bottom faces of the top covers protrude to form connecting parts, the connecting parts are sleeved with openings of the filter cartridges, the openings of the filter cartridges are in threaded connection with the connecting parts, drying agents are arranged in the filter cartridges, and a driving mechanism for driving the positioning shafts and the filter cartridges to move back and forth is arranged in the shell. The test box is simple in structure, the filter cartridge can be driven by the driving mechanism to move back and forth along the inner cavity of the test box body in a rectangular structure, so that moisture in the test box body can be absorbed in a charging and discharging manner, the condensation condition is avoided, internal air can flow by moving the filter cartridge, and the uniformity of temperature distribution is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test boxes, in particular to a high-low temperature and humidity test box with an anti-condensation structure. Background Art

[0002] High and low temperature humidity test chamber is suitable for the inspection of various performance indicators of aerospace products, information electronic instruments, materials, electrical, electronic products, various electronic components in high temperature, low temperature or humidity environment.

[0003] However, condensation may occur during the operation of high and low temperature humidity test chambers. Condensation can be understood as condensed dew. When the temperature of the inner wall surface or device of the equipment drops below the dew point temperature, water droplets will condense on the inner wall surface and components. Condensation may cover up or change the true performance of the product, resulting in inaccurate test results or failure to reflect the true quality of the product. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a high and low temperature humidity test box with an anti-condensation structure, which can quickly absorb internal water vapor through a filter cartridge moving back and forth along the inner cavity of the test box body to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical scheme: a high and low temperature humidity test box with an anti-condensation structure, comprising a test box body and a plurality of filter cartridges, wherein a top shell is arranged inside the test box body, a plurality of positioning openings are arranged on the bottom surface of the shell in a rectangular structure, positioning shafts are arranged in the positioning openings, a top cover is installed at one end of the positioning shafts, a connecting part is protruded on the bottom surface of the top cover, the openings of the filter cartridges are sleeved on the connecting part and are threadedly connected to the connecting part, a desiccant is arranged inside the filter cartridges, and a driving mechanism is arranged inside the shell to drive the positioning shaft and the filter cartridges to move back and forth.

[0006] As a preferred technical solution, the driving mechanism includes a motor, a driving disk, multiple levers and a push rod. The push rods are all installed on the positioning shaft. The bottom surface of the push rod is arranged in contact with the inner wall surface of the top shell. The driving disk is installed on the rotating shaft of the motor. Multiple levers are evenly installed on the outer ring surface of the driving disk in an annular structure, and the levers are respectively arranged on the outside of the push rods. A fixing plate is installed on the top surface of the motor, and both ends of the fixing plate are installed on the inner wall surface of the top shell.

[0007] As a preferred technical solution, a plurality of straight slots are provided on the fixing plate, and through holes are provided on the bottom surface of the top shell directly opposite to the straight slots.

[0008] As a preferred technical solution, a plurality of filter cartridges are arranged in a rectangular structure inside the test box body.

[0009] As a preferred technical solution, a section of the positioning shaft located inside the positioning opening is arranged in a rectangular structure, and the rectangular structure is arranged in contact with the inner side surface of the positioning opening.

[0010] As a preferred technical solution, the desiccant is a high temperature resistant silica gel desiccant.

[0011] As a preferred technical solution, the motor is a high temperature resistant motor.

[0012] As a preferred technical solution, the test chamber body is a high and low temperature humidity test chamber.

[0013] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and can drive the filter cartridge to move back and forth in a rectangular structure along the inner cavity of the test box body through a driving mechanism, so that the moisture inside the test box body can be absorbed and discharged, avoiding the occurrence of condensation, and the moving filter cartridge can make the internal air flow, thereby increasing the uniformity of temperature distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model after the test box body is removed;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model after any one filter cartridge is removed;

[0018] Figure 4 It is a schematic diagram of the structure of the utility model after the fixing plate is removed.

[0019] Among them, 1. test box body; 2. top shell; 3. filter cartridge; 4. positioning shaft; 5. push rod; 6. positioning port; 7. drive disk; 8. lever; 9. fixing plate; 10. top cover; 11. connecting part; 12. through hole; 13. motor. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0022] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a high and low temperature humidity test box with an anti-condensation structure of the utility model comprises a test box body 1 and a plurality of filter cartridges 3, wherein a top shell 2 is arranged inside the test box body 1, and a plurality of positioning openings 6 are arranged on the bottom surface of the shell in a rectangular structure, and a positioning shaft 4 is arranged in each of the positioning openings 6, and a top cover 10 is installed at one end of each of the positioning shafts 4, and a connecting portion 11 is formed by protruding on the bottom surface of the top cover 10, and the openings of the filter cartridges 3 are sleeved on the connecting portion 11 and are threadedly connected with the connecting portion 11, and a desiccant is arranged inside the filter cartridges 3, and a driving mechanism for driving the positioning shaft 4 and the filter cartridge 3 to move back and forth is arranged inside the shell;

[0024] Among them, after pushing the outer filter cartridge, the filter cartridge can move toward one side along the positioning opening, so that the opening of the test box body is opened, avoiding affecting the entry and exit of the product.

[0025] In this embodiment, the driving mechanism includes a motor 13, a driving disk 7, a plurality of levers 8 and a push rod 5. The push rods 5 are all installed on the positioning shaft 4. The bottom surface of the push rod 5 is arranged in contact with the inner wall surface of the top shell 2. The driving disk 7 is installed on the rotating shaft of the motor 13. The plurality of levers 8 are evenly installed on the outer ring surface of the driving disk 7 in an annular structure, and the levers 8 are respectively arranged on the outside of the push rod 5. A fixing plate 9 is installed on the top surface of the motor 13, and the two ends of the fixing plate 9 are installed on the inner wall surface of the top shell 2.

[0026] In this embodiment, the fixing plate 9 is provided with a plurality of straight slots, and the bottom surface of the top shell 2 is provided with through holes 12 opposite to the straight slots, and a screwdriver can pass through the through holes to fix the bolts through the straight slots to the top surface of the test box body.

[0027] In this embodiment, a plurality of filter cartridges 3 are arranged in a rectangular structure inside the test box body 1 and are arranged close to the inner wall of the inner cavity of the test box body so that products can be placed in the middle of the inner cavity.

[0028] In this embodiment, a section of the positioning shaft 4 located inside the positioning opening 6 is arranged in a rectangular structure, and the rectangular structure is arranged in contact with the inner side surface of the positioning opening 6, so that the positioning shaft can only move back and forth along the positioning opening, avoiding rotation.

[0029] In this embodiment, the desiccant is a high temperature resistant silica gel desiccant, so that it can adapt to the temperature inside the test box body.

[0030] In this embodiment, the motor 13 is a high temperature resistant motor 13, so as to adapt to the temperature inside the test box body. The motor can also be installed on the top surface of the test box body, and the rotating shaft of the motor can pass through the test box body and be fixedly connected to the drive disk, thereby avoiding the temperature inside the test box body affecting the motor.

[0031] In this embodiment, the test box body 1 is a high and low temperature humidity test box.

[0032] When in use, the motor can be started to make the motor rotate back and forth continuously. The rotation of the motor drives the driving disk and the lever. After the lever rotates, the push rod can be moved. The push rod can drive the positioning shaft to move along the positioning port. After the motor rotates in the reverse direction, the reverse lever can push the positioning shaft and the filter cartridge to move in the opposite direction along the positioning port. The filter cartridge moving back and forth in a rectangular structure can fully contact with the inner cavity of the test chamber body, so that the moisture inside the test chamber body can be absorbed and discharged to avoid condensation.

[0033] Among them, the shape of the filter cartridge is not limited, as long as the top is set in a circular structure to facilitate the connection with the top cover, the filter cartridge can be set in a flat structure to increase the contact area with the air, so that the movement of the filter cartridge can move the air inside, enable the internal air to flow, and increase the uniformity of temperature distribution.

[0034] Among them, after rotating the filter cartridge, the filter cartridge can be directly removed from the top cover, which makes it convenient to pour out the desiccant inside the filter cartridge and replace it.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A high and low temperature humidity test chamber with an anti-condensation structure, characterized in that: The invention comprises a test box body (1) and a plurality of filter cartridges (3), wherein a top shell (2) is arranged inside the test box body (1), a plurality of positioning openings (6) are arranged on the bottom surface of the shell in a rectangular structure, a positioning shaft (4) is arranged in each positioning opening (6), a top cover (10) is installed at one end of each positioning shaft (4), a connecting portion (11) is protruded on the bottom surface of each top cover (10), an opening of each filter cartridge (3) is sleeved on the connecting portion (11) and is threadedly connected to the connecting portion (11), a desiccant is arranged inside the filter cartridge (3), and a driving mechanism for driving the positioning shaft (4) and the filter cartridge (3) to move back and forth is arranged inside the shell.

2. The high and low temperature humidity test box with an anti-condensation structure according to claim 1 is characterized in that: The driving mechanism comprises a motor (13), a driving disk (7), a plurality of levers (8) and a push rod (5), wherein the push rods (5) are all mounted on the positioning shaft (4), the bottom surface of the push rod (5) is arranged in contact with the inner wall surface of the top shell (2), the driving disk (7) is mounted on the rotating shaft of the motor (13), the plurality of levers (8) are evenly mounted on the outer ring surface of the driving disk (7) in an annular structure, and the levers (8) are respectively arranged on the outer side of the push rod (5), a fixing plate (9) is mounted on the top surface of the motor (13), and the two ends of the fixing plate (9) are mounted on the inner wall surface of the top shell (2).

3. The high and low temperature humidity test box with an anti-condensation structure according to claim 2 is characterized in that: The fixing plate (9) is provided with a plurality of straight slots, and the bottom surface of the top shell (2) is provided with through holes (12) at positions corresponding to the straight slots.

4. The high and low temperature humidity test box with an anti-condensation structure according to claim 1 is characterized in that: A plurality of filter cartridges (3) are arranged in a rectangular structure inside the test box body (1).

5. The high and low temperature humidity test box with an anti-condensation structure according to claim 1 is characterized in that: A section of the positioning shaft (4) located inside the positioning opening (6) is arranged in a rectangular structure, and the rectangular structure is arranged in contact with the inner side surface of the positioning opening (6).

6. The high and low temperature humidity test box with an anti-condensation structure according to claim 1, characterized in that: The desiccant is high temperature resistant silica gel desiccant.

7. The high and low temperature humidity test box with an anti-condensation structure according to claim 2 is characterized in that: The motor (13) is a high temperature resistant motor (13).

8. The high and low temperature humidity test box with an anti-condensation structure according to claim 2, characterized in that: The test chamber body (1) is a high and low temperature and humidity test chamber.

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