Horizontal air supply mechanism and high-low temperature and humidity test chamber

Abstract

The application relates to the technical field of high-low temperature and humidity test boxes, in particular to a horizontal air supply mechanism and a high-low temperature and humidity test box. The horizontal air supply mechanism comprises a partition plate and three fans, the three fans are arranged on the same partition plate, each outer wall of the partition plate is fixedly connected with a same test box body, one end of each of the three fans is provided with an air supply accessory, the air supply accessory comprises a tooth block, one end of the inner wall of the test box body is provided with two diffusion assemblies which are away from each other, and the diffusion assembly comprises a connecting rod. The air supply accessory and the diffusion assembly are arranged. When each filter screen is started, the flow rate of the generated airflow is improved through the flow guide pipe and the collecting pipe. Under the blockage of each baffle, the horizontal pipe will rotate, the airflow is thrown out through each air outlet pipe, at the same time, the diffusion mechanism is started synchronously to quickly diffuse the airflow to each place in the test box body, the utilization rate of the circulating air is improved, and the test effect is ensured.

Description

Technical Field

[0001] This invention relates to the field of high and low temperature humidity test chambers, specifically a horizontal air supply mechanism and a high and low temperature humidity test chamber. Background Technology

[0002] High and low temperature humidity test chambers are used to test products under high and low temperature or humid and hot environments to determine whether the product's performance meets the application scenario. In order to simulate the natural environment in which the product is located, a circulating air supply mechanism is usually used to create air circulation inside the high and low temperature humidity test chamber, thereby testing the product under high temperature, low temperature, and humid and hot conditions.

[0003] As described in Chinese Patent Publication No. CN212651827U, a horizontal air supply mechanism includes: a housing for mounting various parts; the housing having a test chamber and a mounting chamber that are isolated from each other; a circulating air generating component for generating circulating air; the circulating air generating component is disposed within the mounting chamber; an air outlet for guiding the circulating air from the mounting chamber to the test chamber; the air outlet connects the test chamber and the mounting chamber; a return air outlet for returning the circulating air from the test chamber to the mounting chamber; the return air outlet connects the mounting chamber and the test chamber; a cooling component for cooling the circulating air; the cooling component is disposed within the mounting chamber and close to the return air outlet; and a heating component for heating the circulating air; the heating component is disposed within the mounting chamber and located between the cooling component and the circulating air generating component. This mechanism, with its simple structure, can achieve directional circulating delivery of the circulating air, thereby completing high and low temperature humidity tests on the test objects within the high and low temperature humidity test chamber.

[0004] However, during the process of circulating air flowing out of the air outlet and eventually flowing back to the air return outlet, there is a situation where the circulating air is not evenly filled in the test chamber before being returned to the installation chamber by the air return outlet, which leads to a decrease in the utilization rate of the circulating air and a reduction in the final high and low temperature humidity test effect. To address this, we propose a horizontal air supply mechanism and a high and low temperature humidity test chamber. Summary of the Invention

[0005] The purpose of this invention is to provide a horizontal air supply mechanism and a high and low temperature humidity test chamber to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a horizontal air supply mechanism, comprising a partition plate and three fans, all three fans being mounted on the same partition plate, each outer wall of the partition plate being fixedly connected to the same test chamber, each of the three fans having an air supply accessory at one end, the air supply accessory including a toothed block, and two diffusion components positioned far apart from each other being mounted on one end of the inner wall of the test chamber, each diffusion component including a connecting rod, each connecting rod having a turbulence-inducing component on its outer wall, each turbulence-inducing component including multiple turbulence-inducing plates, there being two turbulence-inducing components in total, each of the two diffusion components being connected to two of the air supply components by a connecting component, the connecting component including a toothed column and a rotating shaft, the toothed column being meshed with the toothed block.

[0007] Preferably, one end of the partition plate has three air outlets that are far apart from each other and equidistant from each other. The three fans are installed inside each air outlet. Two filters that are far apart from each other are fixedly connected to the inner wall of each air outlet. One end of the partition plate has a through-type return air outlet. An installation cavity is formed between the partition plate and one end of the inner wall of the test chamber. An evaporator and a heater are installed inside the installation cavity.

[0008] Preferably, one end of each of the air outlets is fixedly connected to a guide pipe, and one end of the guide pipe is fixedly connected to and communicates with a collecting pipe. The interiors of the guide pipe and the collecting pipe are interconnected. The collecting pipe is generally frustum-shaped, and one end of the collecting pipe has a groove. A connecting pipe is rotatably connected inside the groove. One end of the connecting pipe passes through one end of the collecting pipe and is fixedly connected to a horizontal pipe. The horizontal pipe is generally a cylinder without a top surface and hollow inside. Multiple baffles are fixedly connected to the inner wall of the horizontal pipe. The multiple baffles are arranged in a circumferentially spaced manner around the axis of the horizontal pipe. The baffles are generally spiral-shaped. Several air outlet pipes that are equidistantly spaced and circumferentially distributed around the axis of the horizontal pipe are fixedly connected to the outer wall of the horizontal pipe. A support frame is rotatably connected to one end of the outer wall of the horizontal pipe. The toothed block is fixedly installed on one side inner wall of the test chamber.

[0009] Preferably, each of the air outlet pipes has a combined through groove inside. The combined through groove includes through groove one and through groove two. Through groove one is close to the inside of the horizontal pipe, and through groove two is close to the outside. The interiors of through groove one and through groove two are interconnected, and their overall appearance is frustum-shaped. The cross-sectional areas of the ends of through groove one and through groove two that are in contact with each other are equal, and the cross-sectional area of ​​the other end of through groove two is smaller than the cross-sectional area of ​​the other end of through groove one.

[0010] Preferably, the groove has an annular cross-section, and the inner wall of the groove and the outer wall of the connecting pipe are provided with multiple annular grooves, and multiple balls are rolledly connected inside each annular groove.

[0011] Preferably, two mutually distant protective shells are fixedly connected to one end of the inner wall of the partition plate. The connecting rod and the rotating shaft are rotatably connected to one end of the protective shell. There are several toothed blocks, which are equidistantly fixedly connected to the outer wall of the horizontal tube. The toothed column is fixedly connected to the outer wall of the rotating shaft. The toothed column and the toothed block mesh with each other. A vertical plate is fixedly connected to one side of the inner wall of the test chamber. Two placement slots are opened inside the vertical plate. Two connecting components are respectively set inside the two placement slots. The other end of the connecting rod is rotatably connected to one end of the inner wall of the placement slot. A sector block is fixedly connected to the outer wall of the connecting rod. A through elliptical groove is opened on one side of the sector block. A sliding rod is slidably connected inside the elliptical groove. Both ends of the sliding rod are fixedly connected to limit plates. A connecting rod one is rotatably connected between one of the limit plates and the outer wall of the sector block. The other end of the connecting rod one is rotatably connected to the connecting rod two. One end of the connecting rod two is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the interior of the vertical plate.

[0012] Preferably, there is the same included angle between any two adjacent positions of the spoiler.

[0013] A high and low temperature humidity test chamber includes the aforementioned horizontal air supply mechanism.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The present invention proposes a horizontal air supply mechanism and a high and low temperature humidity test chamber. Through the setting of air supply accessories and diffusion components, when each filter is activated, the airflow generated is accelerated through the guide pipe and the collection pipe. Under the obstruction of each baffle, the horizontal pipe will rotate, and the airflow will be thrown out through each air outlet pipe. At the same time, the diffusion mechanism is activated to quickly diffuse these airflows to various places inside the test chamber, improve the utilization rate of circulating air, and ensure the test effect. Attached Figure Description Figure 1 This is a schematic diagram of the overall structure of a part of the present invention; Figure 2 This is a schematic diagram of the overall structure of the test chamber of the present invention; Figure 3 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the overall structure of the horizontal air supply mechanism of the present invention; Figure 5 This is a schematic diagram of the overall half-section structure of the air supply accessory of the present invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of point A in the overall structure; Figure 7 This is a schematic cross-sectional view of the air supply accessory of the present invention; Figure 8 This is a schematic diagram of the overall half-section structure of the air outlet duct of the present invention.

[0015] In the diagram: 1. Fan; 2. Filter screen; 3. Partition plate; 4. Return air inlet; 5. Air outlet; 6. Evaporator; 7. Heater; 8. Mounting cavity; 9. Guide pipe; 10. Manifold; 11. Groove; 12. Connecting pipe; 13. Ball bearing; 14. Horizontal pipe; 15. Baffle; 16. Air outlet pipe; 17. Through groove one; 18. Through groove two; 19. Toothed block; 20. Protective shell; 21. Connecting rod; 22. Sector block; 23. Slide rod; 24. Connecting rod one; 25. Connecting rod two; 26. Toothed column; 27. Rotating shaft; 28. Baffle plate; 29. ​​Support frame; 30. Test chamber. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1 Please see Figure 1 - Figure 8 The present invention provides a technical solution: a horizontal air supply mechanism, including a partition plate 3 and three fans 1. The three fans 1 are all mounted on the same partition plate 3. The same test chamber 30 is fixedly connected to each outer wall of the partition plate 3. An air supply accessory is provided at one end of each of the three fans 1. The air supply accessory includes a toothed block 19. Two diffusion components are provided at one end of the inner wall of the test chamber 30, which are located far apart from each other. The diffusion components include connecting rods 21. A turbulence component is provided on the outer wall of each connecting rod 21. The turbulence component includes multiple turbulence plates 28. There are two turbulence components in total. The two diffusion components are respectively connected to two of the air supply components. The connecting components include toothed columns 26 and rotating shafts 27. The toothed columns 26 are meshed with the toothed blocks 19. With the air supply accessories and diffusion components in place, when each filter 2 is activated, the airflow generated is accelerated through the guide pipe 9 and the collection pipe 10. Under the obstruction of each baffle 15, the horizontal pipe 14 will rotate, and the airflow will be thrown out through each air outlet pipe 16. At the same time, the diffusion mechanism is activated to quickly diffuse these airflows to various places inside the test chamber 30, improve the utilization rate of the circulating air, and ensure the test effect.

[0018] Example 2 Please see Figure 1- Figure 8 Based on Embodiment 1, one end of the partition plate 3 has three air outlets 5 that are far apart from each other and equidistant from each other. Three fans 1 are installed inside each air outlet 5. Two filters 2 that are far apart from each other are fixedly connected to the inner wall of each air outlet 5. One end of the partition plate 3 has a through-type return air outlet 4. An installation cavity 8 is formed between the partition plate 3 and the inner wall of the test chamber 30. An evaporator 6 and a heater 7 are installed inside the installation cavity 8. Each end is fixedly connected to a guide pipe 9. One end of the guide pipe 9 is fixedly connected to and communicates with a collecting pipe 10. The interiors of the guide pipe 9 and the collecting pipe 10 are interconnected. The collecting pipe 10 is generally frustum-shaped. One end of the collecting pipe 10 has a groove 11. A connecting pipe 12 is rotatably connected inside the groove 11. One end of the connecting pipe 12 passes through one end of the collecting pipe 10 and is fixedly connected to a horizontal pipe 14. The horizontal pipe 14 is generally a hollow cylinder without a top surface. Multiple baffles are fixedly connected to the inner wall of the horizontal pipe 14. 15. Multiple baffles 15 are arranged in a circumferentially spaced manner around the axis of the horizontal tube 14. The baffles 15 are spiral in shape. Several air outlet pipes 16 are fixedly connected to the outer wall of the horizontal tube 14, which are equidistantly spaced and arranged in a circumferential manner around the axis of the horizontal tube 14. A support frame 29 is rotatably connected to one end of the outer wall of the horizontal tube 14. The toothed block 19 is fixedly installed on the inner wall of one side of the test chamber 30. Each air outlet pipe 16 has a combined through groove inside. The combined through groove includes through groove one 17 and through groove two 18. Through groove one 17 is close to the inner wall of the test chamber 30. Inside the horizontal tube 14, the second through groove 18 is close to the outside. The interiors of the first through groove 17 and the second through groove 18 are interconnected and both have a frustum shape. The cross-sectional areas of the two through grooves 17 and 18 at their contact ends are equal. The cross-sectional area of ​​the other end of the second through groove 18 is smaller than that of the other end of the first through groove 17. The cross-section of the groove 11 is annular. The inner wall of the groove 11 and the outer wall of the connecting tube 12 are provided with multiple annular grooves. Multiple balls 13 are rolled inside each annular groove.

[0019] When each fan 1 starts, it generates airflow. The airflow travels along the inside of the air outlet 5 and is further purified by one of the filters 2. It then sequentially enters the interior of the guide pipe 9 and the collecting pipe 10. Since the collecting pipe 10 is truncated cone-shaped and conforms to the instructions provided... Figure 4 It can be seen that since the cross-sectional area of ​​one end of the manifold 10 is smaller than that of the guide pipe 9, the gas outlet diameter becomes smaller, and its flow velocity will increase. This is achieved through the various baffles 15 and the instructions attached. Figure 7It is known that each baffle 15 obstructs the airflow to a certain extent. Therefore, during the airflow process, some airflow exerts a lateral force on each baffle 15. Since the connecting pipe 12 is rotatably connected to the groove 11 at one end of the collecting pipe 10, the strong airflow causes the horizontal pipe 14 to rotate. Through the various ball bearings 13 and the annular groove, the contact between the connecting pipe 12 and the groove 11 is partially changed from sliding friction to rolling friction, reducing the sliding friction force that needs to be overcome during rotation and improving the smoothness of the connecting pipe 12 rotating along the inner wall of the groove 11. This reduces the airflow required to drive the horizontal pipe 14, allowing more airflow to be delivered to the horizontal pipe 14. At the ends, these airflows will eventually be ejected from the inside of each air outlet duct 16. Through the through slots 17 and 18 opened on the air outlet duct 16, the path of the airflow is reduced again, and the airflow will be ejected from each through slot 18 in a stronger form. In summary, the airflow velocity generated by the fan 1 is strengthened twice. The rotating horizontal pipe 14 allows these strong airflows to be transmitted to a far distance inside the test chamber 30, that is, to increase the diffusion range, further improve the utilization rate of the circulating air, and ensure the test effect. Through the support frame 29, which cooperates with the connecting pipe 12, the two ends of the horizontal pipe 14 are restricted respectively to ensure its operational stability and ensure that it can function normally.

[0020] Example 3 Please see Figure 1 - Figure 8 Based on Embodiment 2, two mutually spaced protective shells 20 are fixedly connected to one end of the inner wall of the partition plate 3. The connecting rod 21 and the rotating shaft 27 are both rotatably connected to one end of the protective shell 20. Several toothed blocks 19 are fixedly connected at equal intervals to the outer wall of the horizontal tube 14. A toothed column 26 is fixedly connected to the outer wall of the rotating shaft 27, and the toothed column 26 meshes with the toothed blocks 19. A vertical plate is fixedly connected to one inner wall of the test chamber 30. Two mounting slots are opened inside the vertical plate, and two connecting components are respectively installed inside the two mounting slots. The other end of the connecting rod 21... A fan-shaped block 22 is fixedly connected to the outer wall of the connecting rod 21, which is rotatably connected to one end of the inner wall of the placement slot. A through elliptical groove is opened on one side of the fan-shaped block 22. A sliding rod 23 is slidably connected inside the elliptical groove. Limiting plates are fixedly connected to both ends of the sliding rod 23. A connecting rod 24 is rotatably connected between one of the limiting plates and the outer wall of the fan-shaped block 22. A connecting rod 25 is rotatably connected to the other end of the connecting rod 24. One end of the connecting rod 25 is fixedly connected to the rotating shaft 27. The rotating shaft 27 is rotatably connected to the inside of the vertical plate. There is the same included angle between the positions of every two adjacent spoilers 28.

[0021] It should be noted that the toothed block 19, toothed column 26, spoiler 28, and all components of the connecting assembly are made of lightweight plastic. This is to reduce airflow consumption while simultaneously linking the various mechanisms, thus facilitating the experiment. Through the toothed block 19 and toothed column 26, when the horizontal tube 14 rotates, the rotating shaft 27 also rotates synchronously. This causes the connecting rod 25 to rotate synchronously around the axis of the rotating shaft 27. Then, one end of the connecting rod 24 will simultaneously rotate along one end of the connecting rod 25 and rotate with the connecting rod 25 along the axis of the rotating shaft 27. At the same time, the other end of the connecting rod 24 synchronously drives the sliding rod 23 to slide along the inside of the elliptical groove, thereby causing the fan-shaped... Block 22 is driven. As the rotation angle of connecting rod 25 along the axis of rotating shaft 27 gradually changes from 180° to 0°, connecting rod 1 24 drives the sector block 22 to swing upward around the axis of connecting rod 21. As the rotation angle of connecting rod 25 along the axis of rotating shaft 27 gradually changes from 0° to -180°, connecting rod 1 24 drives the sector block 22 to swing downward around the axis of connecting rod 21. During the above process, each baffle 28 fanns back and forth. Through the baffles 28, the airflow blown out of the air outlet duct 16 is further acted upon to diffuse the airflow to various parts inside the test chamber 30, further improving the utilization rate of the circulating air and ensuring the test effect.

[0022] Example 4 A high and low temperature humidity test chamber includes a horizontal air supply mechanism.

[0023] In actual use, each fan 1 generates airflow when it starts. The airflow travels along the inside of the outlet 5 and is further purified by one of the filters 2. It then enters the interior of the guide pipe 9 and the collecting pipe 10 in sequence. Due to the reduced outlet diameter, the flow velocity increases. Some of the airflow exerts a lateral force on each baffle 15, causing the horizontal pipe 14 to rotate. Through the through-slots 17 and 18 on the outlet pipe 16, the path of the airflow is further reduced, and the airflow is ejected from each through-slot 18 in a more powerful form. Through the set toothed blocks 19 and toothed columns 26, when the horizontal pipe 14 rotates, the shaft... 27 will also rotate synchronously, causing the second connecting rod 25 to rotate synchronously around the axis of the rotating shaft 27. Then, one end of the first connecting rod 24 will rotate along one end of the second connecting rod 25 and rotate along the axis of the rotating shaft 27 with the second connecting rod 25. At the same time, the other end of the first connecting rod 24 synchronously drives the slide rod 23 to slide along the inside of the elliptical groove, thereby driving the fan-shaped block 22. Each baffle 28 fans back and forth. Through the set baffles 28, the airflow blown out of the air outlet 16 is further acted to diffuse the airflow to various parts inside the test chamber 30, further improving the utilization rate of the circulating air and ensuring the test effect.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A horizontal air supply mechanism, comprising a partition plate (3) and three fans (1), wherein the three fans (1) are all mounted on the same partition plate (3), and the same test chamber (30) is fixedly connected to each outer wall of the partition plate (3), characterized in that: Each of the three fans (1) is provided with an air supply accessory at one end. The air supply accessory includes a toothed block (19). The inner wall of the test chamber (30) is provided with two diffusion components located far apart from each other. The diffusion components include a connecting rod (21). Each connecting rod (21) is provided with a turbulence component on its outer wall. The turbulence component includes multiple turbulence plates (28). There are two turbulence components in total. The two diffusion components are respectively connected to two of the air supply components. The connecting components include a toothed column (26) and a rotating shaft (27). The toothed column (26) is meshed with the toothed block (19). The partition plate (3) has three air outlets (5) that are far apart from each other and equidistant from each other. Each air outlet (5) is fixedly connected to a guide pipe (9) at one end. The guide pipe (9) is fixedly connected to and communicates with a collection pipe (10) at one end. The guide pipe (9) and the collection pipe (10) are interconnected. The collection pipe (10) is frustum shaped. A groove (11) is opened at one end of the collection pipe (10). A connecting pipe (12) is rotatably connected inside the groove (11). One end of the connecting pipe (12) passes through one end of the collection pipe (10) and is fixedly connected to a horizontal pipe (14). The horizontal pipe (14) is a cylinder without a top surface and hollow inside. Multiple baffles (15) are fixedly connected to the inner wall of the horizontal pipe (14). The multiple baffles (15) are arranged in an equidistant circle around the axis of the horizontal pipe (14). 5) is spiral in shape. The outer wall of the horizontal tube (14) is fixedly connected to several air outlet pipes (16) that are equidistantly spaced and distributed in a circle around the axis of the horizontal tube (14). One end of the outer wall of the horizontal tube (14) is rotatably connected to a support frame (29). The toothed block (19) is fixedly installed on the inner wall of one side of the test chamber (30). Each air outlet pipe (16) has a combined through groove inside. The combined through groove includes through groove one (17) and through groove two (18). Through groove one (17) is close to the inside of the horizontal tube (14), and through groove two (18) is close to the outside. The inside of through groove one (17) and through groove two (18) are interconnected, and the overall appearance of both is frustum-shaped. The cross-sectional areas of the ends of through groove one (17) and through groove two (18) that are in contact with each other are equal. The cross-sectional area of ​​the other end of through groove two (18) is smaller than the cross-sectional area of ​​the other end of through groove one (17).

2. The horizontal air supply mechanism according to claim 1, characterized in that: The three fans (1) are installed inside each air outlet (5). Two filters (2) are fixedly connected to the inner wall of each air outlet (5). A through-type return air port (4) is opened at one end of the partition plate (3). An installation cavity (8) is opened between the partition plate (3) and the inner wall of the test chamber (30). An evaporator (6) and a heater (7) are installed inside the installation cavity (8).

3. A horizontal air supply mechanism according to claim 2, characterized in that: The groove (11) has an annular cross-section. The inner wall of the groove (11) and the outer wall of the connecting pipe (12) are provided with multiple annular grooves. Each annular groove is connected with multiple rolling balls (13).

4. A horizontal air supply mechanism according to claim 2, characterized in that: Two protective shells (20) are fixedly connected to one end of the inner wall of the partition plate (3), and the connecting rod (21) and the rotating shaft (27) are rotatably connected to one end of the protective shell (20). There are several toothed blocks (19), and several toothed blocks (19) are fixedly connected at equal intervals to the outer wall of the horizontal tube (14). The toothed column (26) is fixedly connected to the outer wall of the rotating shaft (27), and the toothed column (26) and the toothed block (19) mesh with each other. A vertical plate is fixedly connected to one side of the inner wall of the test chamber (30). Two mounting slots are opened inside the vertical plate, and the two connecting components are respectively set inside the two mounting slots. The other end of the connecting rod (21) is rotatably connected to one end of the inner wall of the placement groove. A fan-shaped block (22) is fixedly connected to the outer wall of the connecting rod (21). A through elliptical groove is opened on one side of the fan-shaped block (22). A sliding rod (23) is slidably connected inside the elliptical groove. Both ends of the sliding rod (23) are fixedly connected to limit plates. One of the limit plates is rotatably connected to the outer wall of the fan-shaped block (22) by a connecting rod one (24). The other end of the connecting rod one (24) is rotatably connected to a connecting rod two (25). One end of the connecting rod two (25) is fixedly connected to a rotating shaft (27). The rotating shaft (27) is rotatably connected to the inside of the vertical plate.

5. A horizontal air supply mechanism according to claim 1, characterized in that: There is the same included angle between the positions of every two adjacent spoilers (28).

6. A high and low temperature humidity test chamber, characterized in that: Includes the horizontal air supply mechanism described in any one of claims 1-5.

Images