A walk-in high and low temperature test chamber

Abstract

The present invention discloses a walk-in high and low temperature test chamber in the technical field of high and low temperature test chambers, comprising a high and low temperature test chamber main body, an air outlet box being provided at the bottom of a mounting plate, and a high-temperature air delivery pipe and a low-temperature air delivery pipe being respectively penetrated and connected to the left and right side walls of the air outlet box, and an air outlet slot being provided at the bottom of the air outlet box. The present invention can deliver low-temperature air and high-temperature air into the air outlet box under the action of the high-temperature air delivery pipe and the low-temperature air delivery pipe, and can control the opening and closing of the high-temperature air delivery pipe and the low-temperature air delivery pipe under the action of a control valve, and can make the sliding plate move back and forth in the test chamber under the action of a moving mechanism, thereby driving the air outlet box to move back and forth, and can drive the air outlet box to move left and right under the action of an adjusting mechanism, and at the same time, can guide the hot air or cold air discharged from the air outlet slot back and forth with the cooperation of a guide mechanism, so that the high temperature and low temperature states can be diffused more evenly, thereby improving the accuracy of the test.

Description

Technical Field

[0001] The present invention relates to the technical field of high and low temperature test chambers, in particular to a walk-in high and low temperature test chamber. Background Art

[0002] "Walk-in" means that people and even vehicles can enter directly. The box is very large. The walk-in high and low temperature test chamber is an essential test equipment in the fields of aviation, automobiles, home appliances, scientific research, etc. It is used to test and determine the parameters and performance of electrical, electronic and other products and materials after high temperature, low temperature or constant temperature environment changes.

[0003] The walk-in high and low temperature test chamber is very large. Since the high and low temperature outlets in the test chamber are mostly fixed, it is easy for the high and low temperature states to not disperse quickly when the test chamber is running, resulting in the temperature near the high and low temperature outlets meeting the test conditions, while the temperature far away from the outlets is too high or too low, which may lead to inaccurate test results. Therefore, a walk-in high and low temperature test chamber is needed. Summary of the Invention

[0004] The object of the present invention is to provide a walk-in high and low temperature test chamber to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a walk-in high and low temperature test chamber, comprising a high and low temperature test chamber main body, wherein the left and right sides of the front side walls of the high and low temperature test chamber main body are provided with doors installed by hinges, a sliding plate is provided in the high and low temperature test chamber main body, and slide grooves are provided on the upper left and right sides of the high and low temperature test chamber main body, and a moving mechanism is provided in the two groups of slide grooves, a cavity is provided in the sliding plate, and an adjustment mechanism is provided in the cavity, a mounting plate is provided in a sliding connection at the bottom of the sliding plate, an air outlet box is provided at the bottom of the mounting plate, and a high-temperature air delivery pipe and a low-temperature air delivery pipe are respectively penetrated and connected by the left and right side walls of the air outlet box, an air outlet slot is provided at the bottom of the air outlet box, and a flow guide mechanism is provided on the air outlet box.

[0006] Furthermore, the adjusting mechanism includes a reciprocating screw provided in the cavity, the two ends of the reciprocating screw are respectively connected to the bearings provided on the left and right side walls of the cavity, a driven bevel gear is sleeved and installed on the outer wall of the reciprocating screw, an active bevel gear meshing with the driven bevel gear is provided in the cavity, a motor is provided on the front side wall of the sliding plate, the output end of the motor passes through the front side wall of the sliding plate and is connected to the front side wall of the active bevel gear, a slider is sleeved on the outer wall of the reciprocating screw, a vertical rod is provided at the bottom of the slider, and the bottom of the vertical rod is connected to the top of the mounting plate.

[0007] Furthermore, the front and rear side walls in the cavity are both provided with guide grooves, and the front and rear side walls of the slider are both provided with guide blocks matching the guide grooves.

[0008] Furthermore, a sliding groove is provided at the bottom of the sliding plate, and the vertical rod is slidably connected in the sliding groove.

[0009] Furthermore, the moving mechanism includes two groups of screw rods provided in the slide groove, one end of the two groups of screw rods are respectively connected to a bearing provided on the front side wall of the slide groove, and the other ends of the two groups of screw rods respectively pass through the rear side wall of the slide groove and are connected to the driven pulley provided on the outside. A rotating motor is provided on the rear side wall of the high and low temperature test box body, and a driving pulley is connected to the output end of the rotating motor. The outer walls of the driving pulley and the two groups of driven pulleys are sleeved with belts, and the outer walls of the two groups of screw rods are sleeved with moving blocks, and the left and right side walls of the sliding plate are respectively connected to the opposite side walls of the two groups of moving blocks.

[0010] Furthermore, the two groups of sliding grooves are provided with first limiting grooves on the side walls away from each other, and the two groups of moving blocks are provided with first limiting blocks matching the first limiting grooves on the side walls away from each other.

[0011] The cam is connected to the left side of the second support frame by the second end face of the second support frame, and the cam is connected to the right side of the second support frame by the second end face of the second support frame.

[0012] Furthermore, the six groups of rotating shafts are distributed in a linear array on the front side wall of the first fixing plate.

[0013] Furthermore, a second limiting groove is provided on the top of the mounting plate, and a second limiting block matching the second limiting groove is provided on the bottom of the fixing rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can convey low-temperature air and high-temperature air into the air outlet box under the action of the high-temperature air delivery pipe and the low-temperature air delivery pipe, can control the opening and closing of the high-temperature air delivery pipe and the low-temperature air delivery pipe under the action of the control valve, and can make the sliding plate move back and forth in the test box under the action of the moving mechanism, thereby driving the air outlet box to move back and forth, and can drive the air outlet box to move left and right under the action of the adjusting mechanism, and at the same time, with the cooperation of the guide mechanism, can guide the hot air or cold air discharged from the air outlet slot back and forth, so that the high temperature and low temperature states can be diffused more evenly, thereby improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is the main view of the structure of the present invention;

[0017] Figure 3 This is a top view of the internal structure of the chute of the present invention;

[0018] Figure 4 This is a top view of the internal structure of the cavity of the present invention;

[0019] Figure 5 This is a bottom view of the air outlet box and mounting plate structure of the present invention.

[0020] Figure: 1. High and Low Temperature Test Chamber Body; 2. Adjustment Mechanism; 20. Reciprocating Screw; 21. Slider; 22. Guide Block; 23. Guide Slot; 24. Driven Bevel Gear; 25. Driving Bevel Gear; 26. Motor; 3. Sliding Plate; 4. Slide Slot; 5. Low-Temperature Air Delivery Pipe; 6. Mounting Plate; 7. Air Outlet Box; 8. High-Temperature Air Delivery Pipe; 9. Chamber Door; 10. Moving Mechanism; 100. Driven Pulley; 101. Belt; 102. Driving Pulley; 103 , rotating motor; 104, screw rod; 105, moving block; 11, cavity; 12, air outlet slot; 13, air guide mechanism; 130, first fixed plate; 131, air guide plate; 132, second fixed plate; 133, rotating shaft; 134, gear; 135, rack; 136, connecting block; 137, fixed rod; 138, movable rod; 139, vertical plate; 1300, return spring; 1301, knocking plate; 1302, cam; 1303, driving motor. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] See also Figure 1-5 The present invention provides a technical solution: a walk-in high and low temperature test chamber, including a high and low temperature test chamber main body 1. The high and low temperature test chamber is an existing technology. The high and low temperature test chamber is provided with a controller, a refrigerator, a heater and other equipment. The left and right sides of the front side wall of the high and low temperature test chamber main body 1 are respectively provided with a box door 9 installed by hinges. A sliding plate 3 is provided in the high and low temperature test chamber main body 1. Slide grooves 4 are provided on the upper left and right sides of the high and low temperature test chamber main body 1. A moving mechanism 10 is provided in the two groups of slide grooves 4. A cavity 11 is provided in the sliding plate 3. An adjustment mechanism 2 is provided in the cavity 11. The bottom of the sliding plate 3 is slidably connected to a mounting plate 6. An air outlet box 7 is provided at the bottom of the mounting plate 6. The left and right side walls of the air outlet box 7 are respectively penetrated and connected with a high-temperature air delivery pipe 8 and a low-temperature air delivery pipe 5. An air outlet slot 12 is provided at the bottom of the air outlet box 7, and a guide mechanism 13 is provided on the air outlet box 7.

[0024] Example 2:

[0025] See also Figure 4 The adjustment mechanism 2 includes a reciprocating screw 20 provided in the cavity 11, and the two ends of the reciprocating screw 20 are respectively connected to the bearings provided on the left and right side walls of the cavity 11. A driven bevel gear 24 is installed on the outer wall of the reciprocating screw 20. A driving bevel gear 25 meshing with the driven bevel gear 24 is provided in the cavity 11. A motor 26 is provided on the front side wall of the sliding plate 3. The output end of the motor 26 passes through the front side wall of the sliding plate 3 and is connected to the front side wall of the driving bevel gear 25. A slider 21 is provided on the outer wall of the reciprocating screw 20. The front and rear sides of the cavity 11 are connected. The walls are all provided with guide grooves 23, and the front and rear side walls of the slider 21 are provided with guide blocks 22 matching the guide grooves 23. Under the action of the guide grooves 23 and the guide blocks 22, the slider 21 can move more stably on the outer wall of the reciprocating screw 20. A vertical rod is provided at the bottom of the slider 21, and the bottom of the vertical rod is connected to the top of the mounting plate 6. A sliding groove is provided at the bottom of the sliding plate 3, and the vertical rod is slidably connected in the sliding groove. Under the action of the sliding groove, the vertical rod moves left and right more stably, thereby the vertical rod drives the air outlet box 7 to move left and right more stably.

[0026] See also Figure 3The moving mechanism 10 includes two sets of screw rods 104 provided in the chute 4. One end of the two sets of screw rods 104 is respectively connected to a bearing provided on the front side wall of the chute 4. The other ends of the two sets of screw rods 104 pass through the rear side wall of the chute 4 and are connected to the driven pulley 100 provided on the outside. A rotating motor 103 is provided on the rear side wall of the high and low temperature test chamber body 1. The output end of the rotating motor 103 is connected to a driving pulley 102. The driving pulley 102 and the two sets of driven pulleys 1 00 The outer wall is sleeved with a belt 101, and the outer walls of the two groups of screw rods 104 are sleeved with moving blocks 105. The two groups of slide grooves 4 have first limiting grooves on the side walls away from each other, and the two groups of moving blocks 105 have first limiting blocks matching the first limiting grooves on the side walls away from each other. Under the action of the first limiting grooves and the first limiting blocks, the moving blocks 105 move more stably on the outer wall of the screw rod 104, and the left and right side walls of the sliding plate 3 are respectively connected to the opposite side walls of the two groups of moving blocks 105.

[0027] Example 3:

[0028] See also Figure 5 The guide mechanism 13 includes a first fixed plate 130 and a second fixed plate 132 respectively provided on the front and rear side walls of the air outlet box 7. The front side wall of the first fixed plate 130 is connected with six groups of rotating shafts 133 through bearing 2. The outer walls of the six groups of rotating shafts 133 are all sleeved and installed with guide plates 131. The six groups of rotating shafts 133 are distributed in a linear array on the front side wall of the first fixed plate 130, so that the six groups of guide plates 131 can better guide the hot air or cold air discharged from the air outlet slot 12 to the left and right reciprocatingly. One end of the six groups of rotating shafts 133 passes through the rear side wall of the second fixed plate 132 and is connected to the gear 134 provided on the outside. The front side wall of the second fixed plate 132 is slidably connected with a connecting block 136. The bottom of the connecting block 136 is provided with a rack 135 meshing with the gear 134. The bottom of the mounting plate 6 is slidably connected with a fixing rod 137. The top of the mounting plate 6 A second limiting groove is provided at the bottom of the fixing rod 137, and a second limiting block matching the second limiting groove is provided at the bottom of the fixing rod 137. Under the action of the second limiting groove and the second limiting block, the left and right movement of the fixing rod 137 is more stable. The bottom of the fixing rod 137 is connected to the top of the connecting block 136. A vertical plate 139 is provided at the bottom of the mounting plate 6. A movable rod 138 is provided on the left side wall of the fixing rod 137. One end of the movable rod 138 passes through the left side wall of the vertical plate 139 and is connected to the external knocking plate 1301. A return spring 1300 is sleeved on the outer wall of the movable rod 138. One end of the return spring 1300 is connected to the left side wall of the vertical plate 139, and the other end of the return spring 1300 is connected to the right side wall of the knocking plate 1301. A drive motor 1303 is provided on the left side wall of the air outlet box 7, and a cam 1302 is connected to the output end of the drive motor 1303.

[0029] Working principle: When it is necessary to use a high and low temperature test chamber to test the parameters and performance of electronic products under high and low temperature environments, the staff opens the box door 9 and puts the electronic products to be tested into the high and low temperature test chamber 1. When the electronic products are tested in a low temperature environment, the controller on the high and low temperature test chamber controls the control valve on the high temperature air delivery pipe 8 to close, and opens the control valve on the low temperature air delivery pipe 5 at the same time, and then the low temperature air enters the air outlet box 7 from the low temperature air delivery pipe 5, and then the cold air is discharged from the air outlet slot 12. (Because the high and low temperature test chamber can pass its own refrigerator and The heater is used to cool and heat air, which is an existing technology for high and low temperature test chambers). Under the action of the driving motor 1303, the cam 1302 is driven to rotate. The protrusion of the cam 1302 indirectly knocks the knocking plate 1301, and the knocking plate 1301 squeezes the return spring 1300. The knocking plate 1301 drives the movable rod 138 to move, and the movable rod 138 drives the fixed rod 137 to move. The fixed rod 137 drives the rack 135 to move, and the rack 135 drives the gear 134 to rotate. The gear 134 drives the rotating shaft 133 to rotate, and the rotating shaft 13 3 drives the guide plate 131 to rotate. With the cooperation of the return spring 1300, the guide plate 131 can rotate back and forth, so that the hot air or cold air discharged from the air outlet slot 12 can be diverted back and forth. Under the action of the rotating motor 103, the driving pulley 102 is driven to rotate. The driving pulley 102 drives the belt 101 to rotate. The belt 101 drives the two sets of driven pulleys 100 to rotate. The two sets of driven pulleys 100 drive the screw rod 104 to rotate, so that the moving block 105 moves on the outer wall of the screw rod 104, and the moving block 105 drives the sliding plate 3 to rotate. It moves back and forth in the high and low temperature test chamber, thereby driving the air outlet box 7 to move back and forth. At the same time, under the action of the motor 26, the active bevel gear 25 is driven to rotate, and the active bevel gear 25 drives the driven bevel gear 24 to rotate. The driven bevel gear 24 drives the reciprocating screw 20 to rotate, so that the slider 21 moves back and forth on the outer wall of the reciprocating screw 20. The slider 21 drives the air outlet box 7 to move back and forth in the high and low temperature test chamber, so that the cold air can be diffused more evenly in the high and low temperature test chamber, thereby improving the accuracy of the test (when conducting high temperature tests on electronic products, the same is true for low temperature tests).

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A walk-in high and low temperature test chamber, comprising a high and low temperature test chamber body (1), wherein both left and right sides of the front side wall of the high and low temperature test chamber body (1) are provided with chamber doors (9) by hinges, and the characteristics are: A sliding plate (3) is provided in the main body (1) of the high and low temperature test box. Slide grooves (4) are provided on both the upper left and right sides of the main body (1) of the high and low temperature test box. A moving mechanism (10) is provided in the two groups of the slide grooves (4). A cavity (11) is provided in the sliding plate (3). An adjustment mechanism (2) is provided in the cavity (11). A mounting plate (6) is provided in sliding connection at the bottom of the sliding plate (3). An air outlet box (7) is provided at the bottom of the mounting plate (6). A high-temperature air delivery pipe (8) and a low-temperature air delivery pipe (5) are respectively passed through and connected to the left and right side walls of the air outlet box (7). An air outlet slot (12) is provided at the bottom of the air outlet box (7). A flow guide mechanism (13) is provided on the air outlet box (7). The adjusting mechanism (2) includes a reciprocating screw (20) provided in the cavity (11), the two ends of the reciprocating screw (20) are respectively connected to the bearings provided on the left and right side walls of the cavity (11), a driven bevel gear (24) is sleeved and installed on the outer wall of the reciprocating screw (20), a driving bevel gear (25) meshing with the driven bevel gear (24) is provided in the cavity (11), a motor (26) is provided on the front side wall of the sliding plate (3), the output end of the motor (26) passes through the front side wall of the sliding plate (3) and is connected to the front side wall of the driving bevel gear (25), a slider (21) is sleeved on the outer wall of the reciprocating screw (20), a vertical rod is provided at the bottom of the slider (21), and the bottom of the vertical rod is connected to the top of the mounting plate (6); The moving mechanism (10) includes two groups of screw rods (104) provided in the slide groove (4), one end of the two groups of screw rods (104) is respectively connected to a bearing provided on the front side wall of the slide groove (4), and the other ends of the two groups of screw rods (104) respectively penetrate the rear side wall of the slide groove (4) and are connected to the driven pulley (100) provided on the outside. The rear side wall of the high and low temperature test box body (1) is provided with a rotating motor (103), and the output end of the rotating motor (103) is connected to a driving pulley (102). The outer walls of the driving pulley (102) and the two groups of driven pulleys (100) are sleeved with a belt (101). The outer walls of the two groups of screw rods (104) are sleeved with a moving block (105), and the left and right side walls of the sliding plate (3) are respectively connected to the opposite side walls of the two groups of moving blocks (105).

2. A walk-in high and low temperature test chamber according to claim 1, characterized in that: The front and rear side walls of the cavity (11) are both provided with guide grooves (23), and the front and rear side walls of the slider (21) are both provided with guide blocks (22) that match the guide grooves (23).

3. The walk-in high and low temperature test chamber according to claim 1, characterized in that: A sliding groove is provided at the bottom of the sliding plate (3), and the vertical rod is slidably connected in the sliding groove.

4. The walk-in high and low temperature test chamber according to claim 1, characterized in that: The two groups of sliding grooves (4) are provided with first limiting grooves in the side walls away from each other, and the two groups of moving blocks (105) are provided with first limiting blocks matching the first limiting grooves in the side walls away from each other.

5. The walk-in high and low temperature test chamber according to claim 1, characterized in that: The air guide mechanism (13) comprises a first fixed plate (130) and a second fixed plate (132) respectively provided on the front and rear side walls of the air outlet box (7); the front side wall of the first fixed plate (130) is connected with six groups of rotating shafts (133) through bearing 2; the outer walls of the six groups of rotating shafts (133) are all sleeved and installed with air guide plates (131); one end of the six groups of rotating shafts (133) passes through the rear side wall of the second fixed plate (132) and is connected to the gear (134) provided on the outside; the front side wall of the second fixed plate (132) is slidably connected with a connecting block (136); the bottom of the connecting block (136) is provided with a rack (135) meshing with the gear (134); the bottom of the mounting plate (6) is slidably connected with a fixing rod (137); the fixing rod The bottom of the (137) is connected to the top of the connecting block (136), the bottom of the mounting plate (6) is provided with a vertical plate (139), the left side wall of the fixed rod (137) is provided with a movable rod (138), one end of the movable rod (138) passes through the left side wall of the vertical plate (139) and is connected to the external knocking plate (1301), the outer wall of the movable rod (138) is sleeved with a return spring (1300), one end of the return spring (1300) is connected to the left side wall of the vertical plate (139), and the other end of the return spring (1300) is connected to the right side wall of the knocking plate (1301), the left side wall of the air outlet box (7) is provided with a drive motor (1303), and the output end of the drive motor (1303) is connected with a cam (1302).

6. The walk-in high and low temperature test chamber according to claim 5, characterized in that: The six groups of rotating shafts (133) are distributed in a linear array on the front side wall of the first fixing plate (130).

7. The walk-in high and low temperature test chamber according to claim 5, characterized in that: A second limiting groove is provided on the top of the mounting plate (6), and a second limiting block matching the second limiting groove is provided on the bottom of the fixing rod (137).

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