Filter cover defrosting device of metal halogen lamp aging test chamber

Abstract

The utility model relates to the technical field of aging test boxes, in particular to a light filter cover defrosting device of a metal halogen lamp aging test box, which comprises a test box, a partition plate is fixedly mounted on the inner side of the test box, and a light filter cover is fixedly mounted in the center of the partition plate. A motor drives a corresponding rotating shaft and a first fan blade to rotate, heat in a sealing space of a first box door is pumped into a dehumidification box through an annular pipe and an exhaust pipe, air is cooled in the process of passing through a cooling block, moisture in the air is absorbed and dried through arrangement of a quick lime plate, and the moisture is exhausted through an exhaust pipe; the water content in the air in the space corresponding to the sealing of the first box door is reduced, so that the condition that the light filtering cover is very influenced by the air and frosts is avoided, the air temperature can be reduced, meanwhile, the water in the air can be reduced, normal light-transmitting use of the light filtering cover is guaranteed, and the problem that the light transmittance is reduced due to frosting is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aging test chambers, and specifically relates to a defrosting device for a filter cover of a metal halide lamp aging test chamber. Background Art

[0002] The metal halide lamp aging test chamber is an important device widely used in product reliability testing, especially in the fields of electronics, automobiles, aerospace, etc. Its core component - the metal halide lamp, can test the performance changes of products during long-term use.

[0003] The importance of the metal halide lamp aging test chamber in all walks of life and the frosting problem that may occur to the filter cover during use; since the metal halide lamp generates a large amount of heat during operation, if the humidity inside the test chamber is high and the cooling speed of the filter cover is fast, then water vapor may condense on the surface of the filter cover to form frost.

[0004] Based on the above, the inventor of the present invention found that the main reason for the frosting of the filter cover is the influence of moisture carried in the air. If the moisture in the air decreases, the phenomenon of condensation into frost will be reduced. The frosting of the filter cover will cause the light transmittance to decrease and affect the experimental results. Content of the Utility Model

[0005] The purpose of the utility model is to provide a defrosting device for a filter cover of a metal halide lamp aging test chamber, which has the characteristics of drying and cooling the air.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A defrosting device for a filter cover of a metal halide lamp aging test chamber, including a test chamber, a partition is fixedly installed inside the test chamber, a filter cover is fixedly installed at the center of the partition, an air box is fixedly installed on the inner top wall of the test chamber, a placement seat is fixedly installed on the inner bottom wall of the test chamber, a dehumidification box is fixedly installed inside the test chamber, the dehumidification box is located above the partition, a quicklime plate for drying air is fixedly installed inside the dehumidification box, partition nets are fixedly installed on the upper and lower surfaces of the quicklime plate, an absorbent cotton is arranged between the two partition nets, an air extraction mechanism for air flow is arranged inside the dehumidification box, the air extraction mechanism includes a mounting frame fixedly installed on the top of the test chamber, a motor is fixedly installed on the top of the mounting frame, a cooling mechanism for air is arranged inside the dehumidification box, and the cooling mechanism includes a cooling block fixedly installed inside the test chamber.

[0007] For the convenience of sealing, as a preferred defrosting device for a filter cover of a metal halide lamp aging test chamber of the utility model, a first box door and a second box door for sealing are respectively arranged corresponding to the front of the test chamber.

[0008] For the convenience of air extraction, as an optimization of the filter cover defrosting device of a metal halide lamp aging test chamber of the present utility model, the air extraction mechanism includes an air box fixedly installed on the top of the dehumidification box. The output end of the motor is equipped with a rotating shaft, and one end of the rotating shaft is fixedly installed with a first fan blade, and the first fan blade is located inside the air box.

[0009] For the convenience of air extraction, as an optimization of the filter cover defrosting device of a metal halide lamp aging test chamber of the present utility model, the top of the partition board has an annular pipe for air extraction. The top of the annular pipe is fixedly installed with a plurality of air extraction heads. A suction pipe is fixedly installed between the annular pipe and the dehumidification box, and an exhaust pipe is fixedly installed on the top of the air box.

[0010] For the convenience of cooling, as an optimization of the filter cover defrosting device of a metal halide lamp aging test chamber of the present utility model, the cooling mechanism further includes a heat conduction block fixedly installed on the outside of the cooling block, and a heat sink is fixedly installed on the side of the heat conduction block away from the cooling block.

[0011] For the convenience of heat dissipation, as an optimization of the filter cover defrosting device of a metal halide lamp aging test chamber of the present utility model, a rotating shaft is rotatably installed on the right side of the test chamber. The bottom end of the rotating shaft is fixedly installed with a second fan blade, and the second fan blade corresponds to the heat sink.

[0012] For the convenience of power transmission, as an optimization of the filter cover defrosting device of a metal halide lamp aging test chamber of the present utility model, a main gear is fixedly installed on the outside of the rotating shaft, and a driven gear adapted to the main gear is provided at the top end of the rotating shaft.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] When the metal halide lamp is working, a large amount of heat is generated. The motor drives the corresponding rotating shaft and the first fan blade to rotate, and the heat in the sealed space of the first box door is drawn into the dehumidification box through the annular pipe and the suction pipe. The air is cooled during the process of passing through the cooling block. Through the setting of the quicklime plate, the moisture in the air is absorbed and dried, and then discharged through the exhaust pipe, so that the moisture content in the air in the space sealed by the first box door is reduced, thereby avoiding the frosting of the filter cover affected by the moisture in the air. It can cool the air temperature and reduce the moisture in the air at the same time, ensure the normal light transmission of the filter cover, and solve the problem of the decrease in light transmittance caused by frosting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0016] Figure 2 is one of the partial three-dimensional structure diagrams of the present utility model;

[0017] Figure 3 This is the second partial three-dimensional structure diagram of the utility model;

[0018] Figure 4 This is the partial structure diagram of the utility model;

[0019] Figure 5 This is the sectional structure diagram of the dehumidification box of the utility model.

[0020] In the figure: 1. Test chamber; 2. First chamber door; 3. Second chamber door; 4. Mounting frame; 5. Motor; 6. Placing seat; 7. Partition board; 8. Light filter cover; 9. Annular pipe; 10. Dehumidification box; 11. Air box; 12. Air extraction head; 13. Air extraction pipe; 14. Exhaust pipe; 15. Heat conduction block; 16. Heat sink; 17. Rotating shaft; 18. Main gear; 19. Slave gear; 20. Rotating shaft; 21. First fan blade; 22. Second fan blade; 23. Cooling block; 24. Quicklime plate; 25. Partition net. Specific embodiments

[0021] Please refer to Figures 1 to 5 , a defrosting device for the light filter cover of a metal halide lamp aging test chamber, including a test chamber 1, a partition board 7 is fixedly installed on the inner side of the test chamber 1, a light filter cover 8 is fixedly installed at the center of the partition board 7, an air box 11 is fixedly installed on the inner top wall of the test chamber 1, and a placing seat 6 is fixedly installed on the inner bottom wall of the test chamber 1;

[0022] A dehumidification box 10 is fixedly installed on the inner side of the test chamber 1. The dehumidification box 10 is located above the partition board 7. A quicklime plate 24 for drying air is fixedly installed on the inner side of the dehumidification box 10. Partition nets 25 are fixedly installed on the upper and lower surfaces of the quicklime plate 24. Absorbent cotton is arranged between the two partition nets 25. An air extraction mechanism for air flow is arranged on the inner side of the dehumidification box 10. The air extraction mechanism includes a mounting frame 4 fixedly installed on the top of the test chamber 1, and a motor 5 is fixedly installed on the top of the mounting frame 4. A cooling mechanism for air is arranged on the inner side of the dehumidification box 10. The cooling mechanism includes a cooling block 23 fixedly installed on the inner side of the test chamber 1.

[0023] In this embodiment: A placing seat 6 is fixedly installed on the inner bottom wall of the test chamber 1, which is convenient for placing samples. Partition nets 25 are fixedly installed on the upper and lower surfaces of the quicklime plate 24, and absorbent cotton is arranged between the two partition nets 25, which is convenient for restricting the wash water cotton through the partition nets 25 to prevent the wash water cotton from being separated from the quicklime plate 24 by the air flow, improving the absorption of moisture in the passing air and drying the air. The cooling mechanism includes a cooling block 23 fixedly installed on the inner side of the test chamber 1, which is convenient for cooling the air passing through the cooling block 23.

[0024] As a technical optimization solution of the present utility model, a first box door 2 and a second box door 3 for sealing are respectively arranged in front of the test chamber 1.

[0025] In this embodiment: By arranging the first box door 2 and the second box door 3, the corresponding space of the test chamber 1 can be sealed.

[0026] As a technical optimization solution of the present utility model, the air extraction mechanism includes a wind box 11 fixedly installed on the top of the dehumidification chamber 10. The output end of the motor 5 is installed with a rotating shaft 17. One end of the rotating shaft 17 is fixedly installed with a first fan blade 21, and the first fan blade 21 is located inside the wind box 11.

[0027] In this embodiment: The motor 5 drives the rotating shaft 17 to rotate, so that the rotating shaft 17 drives the corresponding first fan blade 21 to rotate, thereby extracting negative pressure from the dehumidification chamber 10 through the wind box 11, so that air enters the dehumidification chamber 10 from the air extraction pipe 13 for drying and cooling treatment.

[0028] As a technical optimization solution of the present utility model, the top of the partition plate 7 has an annular pipe 9 for air extraction. The top of the annular pipe 9 is fixedly installed with a plurality of air extraction heads 12. An air extraction pipe 13 is fixedly installed between the annular pipe 9 and the dehumidification chamber 10. The top of the wind box 11 is fixedly installed with an exhaust pipe 14.

[0029] In this embodiment: An air extraction pipe 13 is fixedly installed between the annular pipe 9 and the dehumidification chamber 10. The top of the wind box 11 is fixedly installed with an exhaust pipe 14, which is convenient for transporting air into the dehumidification chamber 10 through the annular pipe 9 through the air extraction pipe 13 and finally discharging it through the exhaust pipe 14.

[0030] As a technical optimization solution of the present utility model, the cooling mechanism further includes a heat conducting block 15 fixedly installed on the outside of the cooling block 23. A heat sink 16 is fixedly installed on the side of the heat conducting block 15 away from the cooling block 23.

[0031] In this embodiment: A heat sink 16 is fixedly installed on the side of the heat conducting block 15 away from the cooling block 23, which is convenient for transferring the heat of the cooling block 23 to the heat sink 16 through the heat conducting block 15, and performing heat exchange with the outside air through the heat sink 16 to dissipate the heat of the cooling block 23 and reduce the temperature of the cooling block 23.

[0032] As a technical optimization solution of the present utility model, a rotating shaft 20 is rotatably installed on the right side of the test chamber 1. The bottom end of the rotating shaft 20 is fixedly installed with a second fan blade 22, and the second fan blade 22 corresponds to the heat sink 16; a main gear 18 is fixedly installed on the outside of the rotating shaft 17, and the top end of the rotating shaft 20 has a driven gear 19 adapted to the main gear 18.

[0033] In this embodiment: The motor 5 drives the rotating shaft 17 and the main gear 18 to rotate, so that the main gear 18 drives the driven gear 19 and the rotating shaft 20 to rotate, and the second fan blade 22 rotates to blow air on the heat sink 16, accelerating the heat dissipation speed of the heat sink 16.

[0034] Working principle: When the metal halide lamp is working, a large amount of heat is generated. By starting the motor 5 to drive the corresponding rotating shaft 17 to rotate, at the same time, the rotating shaft 17 drives the main gear 18 and the driven gear 19 to rotate, so that the driven gear 19 drives the rotating shaft 20 and the second fan blade 22 to rotate, and the second fan blade 22 blows air on the heat sink 16. The first fan blade 21 is driven to rotate by the rotating shaft 17, and the air box 11 can be used to draw negative pressure on the dehumidification box 10, so that the annular pipe 9 and the air extraction head 12 draw air into the dehumidification box 10 through the air extraction pipe 13. The cooling block 23 in the dehumidification box 10 performs heat exchange and cooling treatment on the passing air. The heat of the heat sink 16 and the cooling block 23 is transferred through the heat conduction block 15, so that the cooling block 23 is effectively cooled. Then the air passes through the partition net 25 and the quicklime plate 24, and the absorbent cotton absorbs and dries the moisture of the air. Finally, the air is discharged back into the sealed space corresponding to the first box door 2 through the exhaust pipe 14, avoiding the frosting of the light filter 8 caused by the humidity in the air.

[0035] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as riveting and welding that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. All the electrical equipment in the present utility model is powered by an external power supply.

[0036] The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A defrosting device for a filter cover of a metal halide lamp aging test chamber, comprising a test chamber (1), a partition plate (7) is fixedly installed inside the test chamber (1), a filter cover (8) is fixedly installed at the center of the partition plate (7), an air box (11) is fixedly installed on the inner top wall of the test chamber (1), and a placement seat (6) is fixedly installed on the inner bottom wall of the test chamber (1), characterized in that: Inside the test chamber (1), a dehumidification box (10) is fixedly installed. The dehumidification box (10) is located above the partition board (7). Inside the dehumidification box (10), a quicklime board (24) for drying air is fixedly installed. On the upper and lower surfaces of the quicklime board (24), partition nets (25) are fixedly installed. An absorbent cotton is arranged between the two partition nets (25). Inside the dehumidification box (10), there is an air extraction mechanism for air flow. The air extraction mechanism includes a mounting rack (4) fixedly installed on the top of the test chamber (1). On the top of the mounting rack (4), a motor (5) is fixedly installed. Inside the dehumidification box (10), there is a cooling mechanism for air. The cooling mechanism includes a cooling block (23) fixedly installed inside the test chamber (1).

2. The defrosting device for the light filter of a metal halide lamp aging test chamber according to claim 1, characterized in that: In front of the test chamber (1), a first box door (2) and a second box door (3) for sealing are respectively arranged.

3. The defrosting device for the filter cover of a metal halide lamp aging test chamber according to claim 1, wherein: The air extraction mechanism includes a wind box (11) fixedly installed on the top of the dehumidification box (10). The output end of the motor (5) is equipped with a rotating shaft (17). One end of the rotating shaft (17) is fixedly installed with a first fan blade (21). The first fan blade (21) is located inside the wind box (11).

4. The defrosting device for the light filter of a metal halide lamp aging test chamber according to claim 3, wherein: On the top of the partition board (7), an annular pipe (9) for air extraction is provided. On the top of the annular pipe (9), a plurality of air extraction heads (12) are fixedly installed. A suction pipe (13) is fixedly installed between the annular pipe (9) and the dehumidification box (10). On the top of the wind box (11), an exhaust pipe (14) is fixedly installed.

5. The defrosting device for the light filter of a metal halide lamp aging test chamber according to claim 3, characterized in that: The cooling mechanism further includes a heat conducting block (15) fixedly installed on the outside of the cooling block (23). On the side of the heat conducting block (15) away from the cooling block (23), a heat sink (16) is fixedly installed.

6. The defrosting device for the filter cover of a metal halide lamp aging test chamber according to claim 5, characterized in that: On the right side of the test chamber (1), a rotating shaft (20) is rotatably installed. The bottom end of the rotating shaft (20) is fixedly installed with a second fan blade (22). The second fan blade (22) corresponds to the heat sink (16).

7. The defrosting device for the filter cover of a metal halide lamp aging test chamber according to claim 6, wherein: On the outside of the rotating shaft (17), a main gear (18) is fixedly installed. At the top end of the rotating shaft (20), there is a driven gear (19) adapted to the main gear (18).

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