Automatic constant temperature test box with double seal

Abstract

The utility model relates to TBOX detection technical field discloses a kind of automatic constant-temperature test box with double sealing, including cabinet, the left side of the top of cabinet is communicated with total air inlet, the inner wall of the cabinet is provided with inner circulation electric heating wire, the right side of the top of cabinet is communicated with total air outlet, the middle part of the front side of the cabinet is provided with multiple aging acupoints, the inner wall front side of the aging acupoint is fixedly connected with multiple acupoint independent air outlet, the inner wall middle part of the cabinet is fixedly connected with multiple inner circulation air extractor, the adjacent between multiple aging acupoints is communicated with acupoint independent air supply machine. In the utility model, by inner circulation air extractor starting, the air in the inside of cabinet is extracted, the extracted air is guided to the vicinity of inner circulation electric heating wire, so as to carry out dynamic compensation by multiple air supply adjustment, so as to carry out local airtightness adjustment, cooperate physical sealing, reach the purpose of multiple sealing, improve practicality and sealing property.

Description

Technical Field

[0001] This utility model relates to the field of TBOX testing technology, and in particular to an automatic constant temperature test chamber with double sealing. Background Technology

[0002] As a core component of vehicle networking, TBOX needs to maintain stable operation in high-temperature environments. Therefore, high-temperature testing is a key step in its reliability verification. The core purpose of high-temperature testing is to verify the functional stability of TBOX in high-temperature environments, assess its hardware reliability, identify potential faults caused by high temperatures, and ensure that the product meets relevant automotive industry standards. After testing, the product must meet the following requirements: no deformation, cracking, or coating peeling of the outer shell; no burning or bulging of internal components; normal power-on; no failure to start or frequent crashes; and data transmission rate, positioning accuracy, and response time indicators must be within the allowable range compared to before the test.

[0003] When conducting high-temperature tests at TBOX, an automatic constant-temperature test chamber is often required. Existing automatic constant-temperature test chambers mostly use silicone sealing strips to passively seal the gaps between the door and the chamber. However, if a local leak occurs during the testing process, dynamic compensation cannot be performed to continue monitoring. The chamber must be shut down for maintenance before testing can resume, which reduces its practicality and testing efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic constant temperature test chamber with double sealing, which aims to improve the problem that in the prior art, when a local leakage occurs during the testing process, the automatic constant temperature test chamber cannot perform dynamic compensation to continue testing, and can only be stopped for maintenance before testing can be carried out, resulting in reduced practicality and decreased testing efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic constant temperature test chamber with double sealing, comprising a chamber body, a main air inlet connected to the top left side of the chamber body, an internal circulation electric heating wire provided on the inner wall of the chamber body, a main exhaust outlet connected to the top right side of the chamber body, multiple aging acupoints provided in the middle of the front side of the chamber body, multiple independent acupoint exhaust outlets fixedly connected to the front side of the inner wall of the aging acupoints, multiple internal circulation exhaust fans fixedly connected to the middle of the inner wall of the chamber body, and independent acupoint supply fans connected between adjacent aging acupoints, multiple internal circulation supply fans fixedly connected to the rear side of the inner wall of the chamber body, and multiple mounting mechanisms provided on the front side of the chamber body for placing the object to be tested.

[0006] As a further description of the above technical solution:

[0007] The installation mechanism includes an installation groove located on the front side of the housing. A fixing beam is provided on the inner wall of the installation groove. A primary motion structure is fixedly connected to the front side of the fixing beam. A secondary motion structure is slidably connected to the outer wall of the primary motion structure. A product placement plate is fixedly connected to the top of the secondary motion structure. Floating interlocking structures are fixedly connected to the left and right sides of the top of the product placement plate. A clamping cylinder is fixedly connected to the front top of the product placement plate. A terminal integration box is fixedly connected to the rear top of the secondary motion structure.

[0008] As a further description of the above technical solution:

[0009] A three-color light is fixedly connected to the top of the box, and a testing instrument placement area is provided on the lower front side of the box.

[0010] As a further description of the above technical solution:

[0011] An operation control panel is fixedly connected to the left side of the enclosure.

[0012] As a further description of the above technical solution:

[0013] A display adjustment dial is fixedly connected to the front edge of the aging acupoint.

[0014] As a further description of the above technical solution:

[0015] The bottom front side of the housing has a main power inlet connection slot.

[0016] As a further description of the above technical solution:

[0017] The main air intake is located near the edge of the front side of the housing.

[0018] As a further description of the above technical solution:

[0019] A program controller is located on the right side of the enclosure.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the internal circulation exhaust fan is started to draw air from inside the box. The drawn air is guided to the vicinity of the internal circulation electric heating wire. After being heated and temperature-regulated, the air is transported in multiple directions by the combined action of the internal circulation blower and the independent blower at the acupoint, so that the air inside the box can flow rapidly. Thus, dynamic compensation is achieved through multiple air supply adjustments, thereby achieving local airtightness adjustment. Combined with physical sealing, the purpose of multiple sealing is achieved, improving practicality and sealing performance.

[0022] 2. In this utility model, the object to be tested is first placed on the product placement plate. Then, the position and angle of the floating interlocking structure are adjusted to connect with the corresponding interface on the object to be tested. The piston rod of the pressing cylinder extends to apply a certain pressure to the object to be tested to prevent it from moving or shaking during the test. Subsequently, the drive devices of the first-stage motion structure and the second-stage motion structure will retract and move inward, achieving the purpose of quickly placing the object to be tested, improving practicality and speeding up work efficiency. Attached Figure Description

[0023] Figure 1 This is a front perspective view of an automatic constant temperature test chamber with double sealing proposed in this utility model.

[0024] Figure 2 This is a top view of an automatic constant temperature test chamber with double sealing proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of an automatic constant temperature test chamber with double sealing proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of an automatic constant temperature test chamber with double sealing proposed in this utility model.

[0027] Legend:

[0028] 1. Housing; 2. Mounting mechanism; 201. Mounting slot; 202. Fixed beam; 203. Primary motion structure; 204. Terminal integrated box; 205. Floating plug-in structure; 206. Pressing cylinder; 207. Secondary motion structure; 208. Product placement plate; 3. Main air inlet; 4. Independent exhaust outlet for acupoints; 5. Independent blower for acupoints; 6. Internal circulation exhaust fan; 7. Main exhaust outlet; 8. Internal circulation blower; 9. Internal circulation electric heating wire; 10. Operation control panel; 11. Aging acupoints; 12. Main air inlet; 13. Main power connection slot; 14. Tester placement area; 15. Display adjustment table; 16. Three-color light; 17. Program controller. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4An embodiment of this utility model is provided: an automatic constant temperature test chamber with double sealing, including a chamber body 1, a main air inlet 3 connected to the top left side of the chamber body 1, an internal circulation electric heating wire 9 provided on the inner wall of the chamber body 1, a main exhaust outlet 7 connected to the top right side of the chamber body 1, a plurality of aging acupoints 11 provided in the middle of the front side of the chamber body 1, a plurality of acupoint independent exhaust outlets 4 fixedly connected to the front side of the inner wall of the aging acupoints 11, a plurality of internal circulation exhaust fans 6 fixedly connected to the middle of the inner wall of the chamber body 1, an acupoint independent air supply fan 5 connected between adjacent acupoints 11, a plurality of internal circulation air supply fans 8 fixedly connected to the rear side of the inner wall of the chamber body 1, and a plurality of mounting mechanisms 2 provided on the front side of the chamber body 1 for placing the object to be tested;

[0031] Specifically, the main exhaust vent 7 is located on the top right side and is equipped with an electric regulating valve and a check valve to prevent backflow of external air. Adjacent aging acupoints 11 are isolated by independent acupoint blowers 5 to prevent cross-influence between different test samples. The internal circulation blower 8 adopts an adjustable angle design, which can adjust the air supply direction according to the test requirements. Together with the independent air supply system on the front, it forms a three-dimensional circulating air field. The intake and exhaust structure adopts a pressure balance design to ensure that the pressure inside the chamber is always maintained within the set range.

[0032] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 4 The installation mechanism 2 includes an installation groove 201, which is located on the front side of the housing 1. A fixing beam 202 is provided on the inner wall of the installation groove 201. A primary motion structure 203 is fixedly connected to the front side of the fixing beam 202. A secondary motion structure 207 is slidably connected to the outer wall of the primary motion structure 203. A product placement plate 208 is fixedly connected to the top of the secondary motion structure 207. Floating interlocking structures 205 are fixedly connected to the left and right sides of the top of the product placement plate 208. A clamping cylinder 206 is fixedly connected to the front side of the top of the product placement plate 208. A terminal integration box 204 is fixedly connected to the rear side of the top of the secondary motion structure 207.

[0033] Specifically, during the test, when thermal expansion of the sample is detected, the clamping cylinder 206 automatically adjusts its stroke to maintain a constant clamping force, preventing changes in contact resistance from affecting the test results. It ensures sufficient friction while avoiding scratching the sample surface. The symmetrically arranged floating mating structure 205 ensures that the insertion and extraction force is stable within a reasonable range and avoids interface wear caused by interference fit. The anti-misinsertion positioning pins set inside the structure achieve unique matching of the interface through different diameter combinations, preventing operators from accidentally inserting and damaging the test equipment.

[0034] Please see the appendix Figure 1 and attached Figure 2A display adjustment dial 15 is fixedly connected to the front edge of the aging acupoint 11, and an operation control panel 10 is fixedly connected to the left side of the box body 1.

[0035] Specifically, the operation control panel 10 is used to help users operate and control the working status of the device, and the display adjustment table 15 can adjust the temperature and wind speed in the corresponding aging acupoint 11.

[0036] Please see the appendix Figure 1 and attached Figure 2 The right side of the housing 1 is provided with a program controller 17. The bottom front side of the housing 1 is provided with a main power connection slot 13. The front side of the housing 1 is provided with a main air inlet 12 near the edge. The top of the housing 1 is fixedly connected with a three-color light 16. The lower middle part of the front side of the housing 1 is provided with a tester placement area 14.

[0037] Specifically, the main air inlet 12 ensures sufficient gas flow into the chamber 1 to meet the fresh air requirements during testing. The main power connection slot 13 is compatible with various power plugs, ensuring that the test chamber can be easily connected to different power systems. The different colors of the tri-color lights 16 allow operators to quickly understand the operating status of the test chamber without frequently checking the operation interface, thus improving work efficiency and ease of operation.

[0038] Working principle: When the test chamber starts working, the internal circulation exhaust fan 6 starts first, drawing air from different positions inside the chamber 1 to form the initial flow of internal airflow. The drawn air is guided to the vicinity of the internal circulation electric heating wire 9, which heats and maintains the current temperature according to the preset temperature requirements. After being heated or temperature-regulated, the air is transported in multiple directions by the combined action of the internal circulation blower 8 and the acupoint independent blower 5. The acupoint independent blower 5 delivers air precisely to the location of each object to be tested. The air delivery from different directions makes the air fully mixed in the chamber 1, further eliminating temperature gradients and improving temperature uniformity. At the same time, the multiple air delivery provides dynamic compensation for local sealing, ensuring local sealing.

[0039] First, the operator places the object to be tested on the product placement plate 208. Then, the position and angle of the floating interlocking structure 205 are adjusted to precisely interlock with the corresponding interface on the object to be tested. This compensates for any minor positional deviations that may occur during placement, ensuring the reliability and stability of the connection. The piston rod of the pressing cylinder 206 extends, applying pressure to the object to be tested to prevent it from moving or shaking due to vibration or airflow during testing, thus ensuring the accuracy and stability of the test. After the object to be tested is fixed and connected, the drive devices of the primary motion structure 203 and the secondary motion structure 207 retract inward to position the object to be tested in the testing position and lock it in place. This prevents the motion structure from moving due to vibration or other external forces during testing, thereby ensuring that the position of the product placement plate 208 and the object to be tested remains stable.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic constant temperature test chamber with double sealing, comprising a chamber body (1), characterized in that: The top left side of the box (1) is connected to a main air inlet (3). The inner wall of the box (1) is provided with an internal circulation electric heating wire (9). The top right side of the box (1) is connected to a main exhaust outlet (7). The middle front side of the box (1) is provided with multiple aging acupoints (11). The front side of the inner wall of the aging acupoints (11) is fixedly connected with multiple independent acupoint exhaust outlets (4). The middle inner wall of the box (1) is fixedly connected with multiple internal circulation exhaust fans (6). Each of the multiple aging acupoints (11) is connected with an independent acupoint blower (5). The rear inner wall of the box (1) is fixedly connected with multiple internal circulation blowers (8). The front side of the box (1) is provided with multiple installation mechanisms (2). The installation mechanisms (2) are used to place the object to be tested.

2. The automatic constant temperature test chamber with double sealing according to claim 1, characterized in that: The installation mechanism (2) includes an installation groove (201), which is located on the front side of the housing (1). A fixing beam (202) is provided on the inner wall of the installation groove (201). A primary motion structure (203) is fixedly connected to the front side of the fixing beam (202). A secondary motion structure (207) is slidably connected to the outer wall of the primary motion structure (203). A product placement plate (208) is fixedly connected to the top of the secondary motion structure (207). A floating interlocking structure (205) is fixedly connected to the left and right sides of the top of the product placement plate (208). A clamping cylinder (206) is fixedly connected to the front side of the top of the product placement plate (208). A terminal integration box (204) is fixedly connected to the rear side of the top of the secondary motion structure (207).

3. The automatic constant temperature test chamber with double sealing according to claim 1, characterized in that: A tri-color light (16) is fixedly connected to the top of the box (1), and a tester placement area (14) is provided on the lower front side of the box (1).

4. The automatic constant temperature test chamber with double sealing according to claim 1, characterized in that: An operation control panel (10) is fixedly connected to the left side of the housing (1).

5. An automatic constant temperature test chamber with double sealing according to claim 1, characterized in that: A display adjustment dial (15) is fixedly connected to the front edge of the aging acupoint (11).

6. The automatic constant temperature test chamber with double sealing according to claim 1, characterized in that: The bottom front side of the housing (1) is provided with a main power inlet connection groove (13).

7. An automatic constant temperature test chamber with double sealing according to claim 1, characterized in that: A main air inlet (12) is provided on the front side of the housing (1) near the edge.

8. An automatic constant temperature test chamber with double sealing according to claim 1, characterized in that: A program controller (17) is provided on the right side of the housing (1).

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