Ventilation device of high and low temperature test box

Abstract

The utility model provides an air interchanger of a high and low temperature test chamber, which belongs to the field of high and low temperature test chambers and comprises a test chamber body. The ventilation assembly comprises an air inlet barrel, a conveying barrel, a motor and fan blades, the air inlet barrel penetrates through one side of the test box body to be fixedly arranged, the conveying barrel penetrates through the air inlet barrel to be fixedly arranged, the motor is fixedly arranged on the outer side of the test box body, and a shaft rod is fixedly arranged at the output end of the motor; the shaft rod penetrates through the test box body and is rotationally connected with the conveying cylinder, and the fan blades are fixedly arranged at the other end of the shaft rod; and the adjusting assembly is used for adjusting the wind direction. According to the utility model, the ventilation assembly is arranged, so that internal air can circulate, a product is uniformly heated, and the accuracy of a test result is improved; and an adjusting assembly is further arranged, internal air can be rapidly exhausted, the exhaust work efficiency is improved, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of high and low temperature test chamber technology, and in particular to a ventilation device for a high and low temperature test chamber. Background Technology

[0002] A high and low temperature test chamber is a device used to simulate extreme temperature environments, commonly used to test and evaluate the performance and reliability of products under different temperature conditions. It can provide high and low temperature environments and control the rate of temperature change within a certain range. The test chamber typically consists of a sealed enclosure containing heaters and coolers, as well as temperature sensors and a temperature control system.

[0003] Existing test chambers lack measures to promote air circulation inside the chamber, resulting in poor airflow and easily causing localized temperature differences. Since the degree of heating of products varies significantly in different areas, this directly interferes with the accuracy of test results, causing systematic test errors caused by temperature gradients. This restricts the validity and reliability of test data and makes it difficult to meet the high-standard industrial testing requirements. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a ventilation device for a high and low temperature test chamber.

[0005] An embodiment of this utility model provides a ventilation device for a high and low temperature test chamber, comprising:

[0006] Test chamber body;

[0007] A ventilation assembly includes an air inlet duct, a conveying duct, a motor, and fan blades. The air inlet duct is fixedly installed through one side of the test chamber body. The conveying duct is fixedly installed through the air inlet duct. The motor is fixedly installed on the outside of the test chamber body. A shaft is fixedly installed at the output end of the motor. The shaft passes through the test chamber body and is rotatably connected to the conveying duct. The fan blades are fixedly installed at the other end of the shaft.

[0008] An adjustment component for adjusting wind direction.

[0009] Furthermore, the adjusting assembly includes a piston and a cylinder. The piston is slidably disposed inside the air inlet duct, and a connecting rod is fixedly disposed on one side of the piston. The cylinder is fixedly disposed on the outside of the test chamber body, and a push plate is fixedly disposed on the output end of the cylinder. The other end of the connecting rod is fixedly disposed on the push plate.

[0010] Furthermore, it also includes a dustproof component, which includes an annular frame and a dustproof net. The annular frame is fitted over the outer end of the air inlet duct, and the dustproof net is fixedly installed inside the annular frame.

[0011] Furthermore, the air inlet duct is provided with a through hole, the push plate is movably disposed through the through hole, and a cover plate is fixedly disposed on the push plate, the cover plate being disposed against the outer side of the air inlet duct.

[0012] Furthermore, a rubber strip is fixedly installed on the air inlet duct, and the rubber strip is abutted against the inner side of the annular frame.

[0013] Furthermore, a door is rotatably provided on the front side of the test chamber body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. A ventilation system is installed. The motor can drive the fan blades to rotate quickly, transporting air from the lower part of the test chamber to the upper part, so as to circulate the air inside, avoid local temperature differences, and ensure that the products in different areas are heated evenly, thereby improving the accuracy of test results.

[0016] 2. An adjustment component is installed, which drives the piston to move to the inside via a cylinder; then the fan blades can draw external air into the test chamber and quickly expel the internal air through the exhaust port, improving the efficiency of the exhaust process and increasing its practicality.

[0017] In summary, this utility model incorporates a ventilation component that allows for internal air circulation, ensuring uniform heating of the product and improving the accuracy of test results; it also includes an adjustment component that allows for rapid exhaust of internal air, improving exhaust efficiency and increasing practicality. Attached Figure Description

[0018] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the interior of the test chamber body in an embodiment of this utility model.

[0020] Figure 3 This is a three-dimensional schematic diagram of the ventilation component in an embodiment of this utility model.

[0021] Figure 4 This is a cross-sectional view of the air inlet duct in an embodiment of this utility model.

[0022] In the above attached figures: 1 Test chamber body, 2 Air inlet duct, 3 Conveying duct, 4 Motor, 5 Shaft, 6 Fan blade, 7 Chamber door, 8 Piston, 9 Connecting rod, 10 Cylinder, 11 Push plate, 12 Movable hole, 13 Cover plate, 14 Annular frame, 15 Dustproof net, 16 Rubber strip. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1-4 As shown in the figure, this utility model embodiment proposes a ventilation device for a high and low temperature test chamber, comprising:

[0025] The test chamber body 1 is a prior art material, equipped with a closable vent for exhaust. A door 7 is rotatably mounted on the front side of the test chamber body 1.

[0026] The ventilation assembly includes an air inlet duct 2, a conveying cylinder 3, a motor 4, and a fan blade 6. The air inlet duct 2 is fixedly installed through one side of the test chamber body 1. The conveying cylinder 3 is fixedly installed through the air inlet duct 2. The motor 4 is fixedly installed on the outside of the test chamber body 1. The outside installation can avoid the influence of high and low temperatures inside the chamber on the operation of the motor 4. The output end of the motor 4 is fixedly installed with a shaft 5. The shaft 5 passes through the test chamber body 1 and is rotatably connected to the conveying cylinder 3. The fan blade 6 is fixedly installed at the other end of the shaft 5. The fan blade 6 is installed inside the conveying cylinder 3. The fan blade 6 can transport the air from the bottom of the conveying cylinder 3 to the top.

[0027] An adjustment assembly, used to adjust the airflow direction, includes a piston 8 and a cylinder 10. The piston 8 is slidably disposed inside the air inlet duct 2, and is sealed and slidably connected to the inner wall of the air inlet duct 2. A connecting rod 9 is fixedly disposed on one side of the piston 8. The cylinder 10 is fixedly disposed on the outside of the test chamber body 1. A push plate 11 is fixedly disposed on the output end of the cylinder 10, and the other end of the connecting rod 9 is fixedly disposed on the push plate 11, so that the cylinder 10 can drive the piston 8 to move through the push plate 11 and the connecting rod 9.

[0028] An movable hole 12 is provided through the air inlet duct 2, and a push plate 11 is movably disposed through the movable hole 12, allowing the push plate 11 to move through the movable hole 12. A cover plate 13 is fixedly disposed on the push plate 11, and the cover plate 13 is disposed against the outer side of the air inlet duct 2. The cover plate 13 can cover the movable hole 12 to prevent gas from passing through.

[0029] It also includes a dustproof component, which consists of an annular frame 14 and a dustproof net 15. The annular frame 14 is fitted onto the outer end of the air inlet duct 2, and the dustproof net 15 is fixedly installed inside the annular frame 14. The dustproof net 15 serves to prevent dust from entering the test chamber body 1 and affecting the test operation. A rubber strip 16 is fixedly installed on the air inlet duct 2, and the rubber strip 16 abuts against the inner side of the annular frame 14. The rubber strip 16 can press the inner side of the annular frame 14 tightly, thereby fixing the annular frame 14 and the dustproof net 15; by pulling out the annular frame 14 to separate it from the rubber strip 16, the dustproof net 15 can be removed for cleaning.

[0030] The detailed working process of this utility model is as follows:

[0031] 1. During use, the motor 4 drives the fan blade 6 to rotate rapidly through the shaft 5, thereby drawing the air from the bottom of the test chamber body 1 into the air intake duct 2 through the conveying cylinder 3, and then conveying the air to the top of the test chamber body 1 through the conveying cylinder 3, so that the air inside the test chamber body 1 can circulate.

[0032] 2. During ventilation, first open the exhaust port, then drive the push plate 11 to move inward through the cylinder 10. The push plate 11 drives the piston 8 to move in the same direction to the right side of the conveying cylinder 3 through the connecting rod 9, blocking the inner port of the air inlet duct 2. Subsequently, the rapidly rotating fan blades 6 can draw in external air through the air inlet duct 2, and then transport the air to the test chamber body 1 through the conveying cylinder 3, thereby quickly expelling the air in the test chamber body 1 through the exhaust port.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A ventilation device for a high and low temperature test chamber, characterized in that, include: Test chamber body (1); The ventilation assembly includes an air inlet duct (2), a conveying duct (3), a motor (4), and a fan blade (6). The air inlet duct (2) is fixedly installed through one side of the test chamber body (1). The conveying duct (3) is fixedly installed through the air inlet duct (2). The motor (4) is fixedly installed on the outside of the test chamber body (1). A shaft (5) is fixedly installed at the output end of the motor (4). The shaft (5) is rotatably connected through the test chamber body (1) and the conveying duct (3). The fan blade (6) is fixedly installed at the other end of the shaft (5). An adjustment component for adjusting wind direction.

2. The ventilation device for a high and low temperature test chamber according to claim 1, characterized in that, in: The adjustment assembly includes a piston (8) and a cylinder (10). The piston (8) is slidably disposed inside the air inlet duct (2). A connecting rod (9) is fixedly disposed on one side of the piston (8). The cylinder (10) is fixedly disposed on the outside of the test chamber body (1). A push plate (11) is fixedly disposed on the output end of the cylinder (10). The other end of the connecting rod (9) is fixedly disposed on the push plate (11).

3. The ventilation device for a high and low temperature test chamber according to claim 1, characterized in that, in: It also includes a dustproof component, which includes an annular frame (14) and a dustproof net (15). The annular frame (14) is fitted around the outer end of the air inlet duct (2), and the dustproof net (15) is fixedly installed inside the annular frame (14).

4. The ventilation device for a high and low temperature test chamber according to claim 2, characterized in that, in: The air inlet duct (2) is provided with a movable hole (12), the push plate (11) is provided through the movable hole (12), and a cover plate (13) is fixedly provided on the push plate (11). The cover plate (13) is abutted against the outer side of the air inlet duct (2).

5. The ventilation device for a high and low temperature test chamber according to claim 3, characterized in that, in: A rubber strip (16) is fixedly installed on the air inlet duct (2), and the rubber strip (16) abuts against the inner side of the annular frame (14).

6. The ventilation device for a high and low temperature test chamber according to claim 1, characterized in that, in: The test chamber body (1) is equipped with a rotating door (7) on the front side.

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