A windless temperature control device for a temperature testing machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FUHUA TESTING TECHNOLOGY CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-06-30
AI Technical Summary
When the chamber door is opened to remove materials, outside air is easily drawn into the temperature testing machine, causing temperature fluctuations and affecting the quality and accuracy of the test.
Design a windless temperature control device, which includes a pull-out box and a baffle. The product can be removed in one go by pulling out the box, and the baffle can quickly close the chamber opening. Compression springs and positioning structures are used to ensure a seal and reduce the entry of external air.
It enables rapid material handling, reduces temperature fluctuations, ensures testing efficiency and quality, and maintains temperature stability within the chamber.
Smart Images

Figure CN224436814U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temperature testing machine technology, specifically to a windless temperature uniformity control device for a temperature testing machine. Background Technology
[0002] A temperature testing machine, more commonly known as an environmental testing chamber, is an industrial device that can artificially simulate and precisely control the temperature environment in a closed chamber (work chamber) to test the performance, reliability, and stability of products and materials under various temperature conditions.
[0003] Currently, temperature testing machines have a simple structure. After the cabinet door is opened, the chamber of the temperature testing machine is directly exposed. Because the gas inside the temperature testing machine is designed for convection, outside air is easily drawn into the chamber. In addition, products are usually taken out one by one, resulting in a long material removal time. This causes the cabinet door to remain open for a long time, causing significant fluctuations in the temperature inside the chamber, which affects the testing quality and accuracy of subsequent products. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a windless temperature uniformity control device for a temperature testing machine, which can remove the product at once through a pull-out box and can quickly block the opening of the chamber through a baffle, so as to solve the problems mentioned in the background art.
[0005] This utility model is achieved through the following technical solution: a windless temperature uniformity control device for a temperature testing machine, comprising a temperature testing machine body, wherein a pull-out box is provided in the chamber of the temperature testing machine body, the pull-out box includes a panel and a support frame, the panel is disposed in the opening of the chamber, the support frame is installed on the inner side of the panel, the panel has grooves on both sides, the inner wall of the chamber protrudes to form a sealing part opposite to the groove, the sealing part is inserted into the groove, the opening of the chamber is covered by the panel and the sealing part, the support frame has multiple support plates inside, and a baffle is provided deep in the chamber of the temperature testing machine body, which is pressed and positioned by the pull-out box, and ventilation grooves are provided on both sides of the baffle opposite to the groove.
[0006] As a preferred technical solution, a rectangular groove is provided on the outer side of the panel, and a shaft hole is provided on the bottom surface of the rectangular groove. A slot is provided on the bottom surface of the chamber opposite to the shaft hole. A positioning rod is provided in the shaft hole. One end of the positioning rod is inserted into the slot, and the other end extends into the rectangular groove and is fitted with a handle. A first compression spring is sleeved on the outside of the positioning rod. One end of the first compression spring is installed on the inner side of the rectangular groove, and the other end is installed on the handle.
[0007] As a preferred technical solution, the inner wall surface of the deepest part of the temperature testing machine body is provided with multiple cylindrical grooves, each of which is provided with a second compression spring. One end of each second compression spring is installed on the inner wall surface of the cylindrical groove, and the other end is installed on the baffle.
[0008] As a preferred technical solution, the support frame is arranged in a "U" shape, with the opening on one side of the support frame facing the air outlet inside the temperature testing machine body, and multiple air vents on the side of the support frame away from the opening.
[0009] As a preferred technical solution, a positioning groove is provided on the inner side of the support frame, and a positioning part is formed by one side of the support plate protruding out. The positioning part is inserted into the positioning groove and rubs against the positioning groove. The cross-sections of the positioning groove and the positioning part are both set in a "T" shape.
[0010] As a preferred technical solution, the length and width of the support frame are smaller than the length and width of the chamber, and a ring-shaped channel is formed between the outer side of the support frame and the inner wall of the chamber.
[0011] As a preferred technical solution, the length and width of the baffle match the length and width of the chamber, and the four sides of the baffle are smoothly arranged.
[0012] The beneficial effects of this utility model are: the utility model has a simple structure, the product is placed on the tray, and the tray is simultaneously installed on the support frame. After the support frame is taken out, the product can be taken out at once without the need for individual removal operations, reducing the time required for material removal. As the pull-out box is moved out, the baffle can be pushed out under the rebound of the second compression spring until it blocks the opening of the chamber, which greatly reduces the intake of external air and reduces the fluctuation of internal temperature, thus ensuring the efficiency and quality of subsequent testing. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of this utility model after removing the pull-out box;
[0016] Figure 3 This is a schematic diagram of the structure of the present invention after the baffle is further removed;
[0017] Figure 4This is a schematic diagram of the installation structure of the pull-out box and tray of this utility model.
[0018] The components include: 1. Temperature testing machine body; 2. Panel; 3. Rectangular groove; 4. Handle; 5. First compression spring; 6. Sealing part; 7. Baffle; 8. Ventilation groove; 9. Support plate; 10. Positioning rod; 11. Second compression spring; 12. Positioning part; 13. Vent; 14. Support frame; 15. Groove. Detailed Implementation
[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0020] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a windless temperature control device for a temperature testing machine, comprising a temperature testing machine body 1. A pull-out box is provided in the chamber of the temperature testing machine body 1. The pull-out box includes a panel 2 and a support frame 14. The panel 2 is positioned in the opening of the chamber, and the support frame 14 is mounted on the inner side of the panel 2. Grooves 15 are provided on both sides of the panel 2. A sealing part 6 protrudes from the inner wall of the chamber opposite to the groove 15 and is inserted into the groove 15. The opening of the chamber is covered by the panel 2 and the sealing part 6. Multiple support plates 9 are provided inside the support frame 14. A baffle 7, positioned and pressed by the pull-out box, is provided deep within the chamber of the temperature testing machine body 1. Ventilation slots 8 are provided on both sides of the baffle 7, opposite to the groove 15.
[0023] In this embodiment, a rectangular groove 3 is provided on the outer side of the panel 2, and a shaft hole is provided on the bottom surface of the rectangular groove 3. A slot is provided on the bottom surface of the chamber opposite to the shaft hole. A positioning rod 10 is provided in the shaft hole. One end of the positioning rod 10 is inserted into the slot, and the other end extends into the rectangular groove 3 and is fitted with a handle 4. A first compression spring 5 is sleeved on the outside of the positioning rod 10. One end of the first compression spring 5 is installed on the inner side of the rectangular groove 3, and the other end is installed on the handle 4.
[0024] The positioning rod, shaft hole, and insertion hole have rectangular cross-sections, which prevents the grip rod from rotating and allows for a better grip.
[0025] The end of the grip rod away from the positioning rod forms a clearance space with the rectangular groove. However, this clearance space only allows the positioning rod to be pulled out of the insertion hole, but cannot disengage the positioning rod from the shaft hole. This allows the grip rod to apply an upward force, which can better operate the pull-out box.
[0026] In this embodiment, the inner wall surface of the deepest part of the chamber of the temperature testing machine body 1 is provided with multiple cylindrical grooves, and each cylindrical groove is provided with a second compression spring 11. One end of each second compression spring 11 is installed on the inner wall surface of the cylindrical groove, and the other end is installed on the baffle 7. The longest distance after the second compression spring rebounds can push the baffle to the opening of the chamber.
[0027] In this embodiment, the support frame 14 is arranged in a "U" shape, with the opening on one side of the support frame 14 facing the air outlet inside the temperature testing machine body 1, and multiple air vents 13 on the side of the support frame 14 away from the opening.
[0028] In this embodiment, a positioning groove is provided on the inner side of the support frame 14, and a positioning part 12 is formed by protruding one side of the tray 9. The positioning part 12 is inserted into the positioning groove and rubs against the positioning groove. The cross-sections of the positioning groove and the positioning part 12 are both set in a "T" shape, and the inserted tray is positioned by friction.
[0029] In this embodiment, the length and width of the support frame 14 are smaller than the length and width of the chamber. An annular channel is formed between the outer side of the support frame 14 and the inner wall of the chamber, allowing the hot air or cold air generated by the temperature testing machine body to pass through the channel, reducing the probability of obstruction.
[0030] In this embodiment, the length and width of the baffle 7 match the length and width of the chamber, and the four sides of the baffle 7 are smoothly arranged so that the baffle can move smoothly outward along the inner wall of the chamber.
[0031] Working principle: The product can be placed on the tray first, and the handle can be held to lift the pull-out box and squeeze the baffle to insert it into the cavity. After it is inserted into place, the pull-out box can be pressed down and the handle can be released. The rebound of the first compression spring can make the positioning rod insert into the insertion hole, thereby positioning the pull-out box.
[0032] The hot or cold air generated inside the temperature testing machine can be discharged through the air outlet and come into contact with the product through the opening on the support frame, until it passes through the air vent and air inlet to achieve air convection.
[0033] After the product inspection is completed, the positioning rod can be moved upward by holding the lever. After the positioning rod is moved out of the insertion hole, the pull-out box can be pulled out upward by the outward pushing force of the baffle and by manual pulling. The movement of the pull-out box drives the tray and the product, so that the product can be taken out in one go, which greatly reduces the time required for material removal.
[0034] Furthermore, as the pull-out box moves away, the baffle is pushed outward by the rebound of the second compression spring. The ventilation slots on both sides of the baffle greatly reduce the amount of internal hot air being pushed out. After the baffle moves into the opening of the chamber, the ventilation slots on the baffle can be sealed by the sealing part. The baffle and the sealing part can effectively block the outside air, preventing outside air from being sucked in or entering on its own, keeping the inside of the chamber basically in a windless state, effectively keeping it warm, and reducing temperature fluctuations caused by air entering.
[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. A windless temperature uniformity control device for a temperature testing machine, characterized by: The temperature testing machine body (1) includes a pull-out box in the chamber of the temperature testing machine body (1). The pull-out box includes a panel (2) and a support frame (14). The panel (2) is set in the opening of the chamber. The support frame (14) is installed on the inner side of the panel (2). The two sides of the panel (2) are provided with grooves (15). The inner wall of the chamber protrudes from the groove (15) to form a sealing part (6). The sealing part (6) is inserted into the groove (15). The opening of the chamber is covered by the panel (2) and the sealing part (6). The inside of the support frame (14) is provided with multiple support plates (9). The depth of the chamber of the temperature testing machine body (1) is provided with a baffle (7) that is pressed and positioned by the pull-out box. The two sides of the baffle (7) are provided with ventilation slots (8) that are opposite to the groove (15).
2. The uniform temperature control apparatus for a temperature tester according to claim 1, wherein: A rectangular groove (3) is provided on the outer side of the panel (2). A shaft hole is provided on the bottom surface of the rectangular groove (3). A slot is provided on the bottom surface of the chamber opposite the shaft hole. A positioning rod (10) is provided in the shaft hole. One end of the positioning rod (10) is inserted into the slot, and the other end extends into the rectangular groove (3) and is fitted with a handle (4). A first compression spring (5) is sleeved on the outside of the positioning rod (10). One end of the first compression spring (5) is installed on the inner side of the rectangular groove (3), and the other end is installed on the handle (4).
3. The uniform temperature control apparatus for a temperature tester according to claim 1, wherein: The inner wall surface of the deepest part of the temperature testing machine body (1) is provided with multiple cylindrical grooves, and each cylindrical groove is provided with a second compression spring (11). One end of each second compression spring (11) is installed on the inner wall surface of the cylindrical groove, and the other end is installed on the baffle (7).
4. The uniform temperature control apparatus for a temperature tester according to claim 1, wherein: The support frame (14) is set in a "U" shape. The opening on one side of the support frame (14) faces the air outlet inside the temperature test machine body (1). The side of the support frame (14) away from the opening is provided with multiple air vents (13).
5. The uniform temperature control apparatus for a temperature tester according to claim 1, wherein: The inner side of the support frame (14) is provided with a positioning groove, and one side of the support plate (9) protrudes to form a positioning part (12). The positioning part (12) is inserted into the positioning groove and rubs against the positioning groove. The cross-sections of the positioning groove and the positioning part (12) are both set in a "T" shape.
6. The uniform temperature control apparatus for a temperature tester according to claim 1, wherein: The length and width of the support frame (14) are smaller than the length and width of the chamber, and a ring-shaped channel is formed between the outer side of the support frame (14) and the inner wall of the chamber.
7. The uniform temperature control apparatus for a temperature tester according to claim 1, wherein: The length and width of the baffle (7) match the length and width of the chamber, and the four sides of the baffle (7) are smoothly arranged.