High-temperature test box

Abstract

The utility model discloses a high-temperature test box, and relates to the technical field of test box equipment. The high-temperature test box comprises a high-temperature box, a box door is arranged at the opening end of the high-temperature box, an air duct assembly is arranged at the position, away from the opening end, of an inner cavity of the high-temperature box, the two ends of the air duct assembly are connected with the two side walls of the inner cavity of the high-temperature box respectively, and a first through hole is formed in the middle of the back face of the high-temperature box; an air suction assembly is installed on the back face of the high-temperature box, one end of the air suction assembly penetrates through an inner cavity of the first through hole, and the air suction end of the air suction assembly is located at the air outlet end of the air duct assembly. Moreover, the air duct assembly can restrain the flow direction of air to optimize the temperature uniformity in the cavity, and meanwhile, the heater can heat the internal air according to requirements, so that a high-temperature test can be carried out on a product.

Description

Technical Field

[0001] This utility model relates to the technical field of test chamber equipment, specifically a high-temperature test chamber. Background Technology

[0002] High temperature test chambers, also known as high temperature aging test chambers, aging chambers, high temperature ovens, high temperature drying ovens, and thermal aging test chambers, are used for high temperature testing of various electronic products and materials. They generate a stable high temperature environment through a heating system, with a temperature range typically from room temperature to 300°C or even higher.

[0003] Current mainstream air duct solutions typically employ bottom-drawing and horizontal-blowing airflow, with the number of motors and impellers depending on the width of the chamber. Whether there is one or more, the airflow from the impellers cannot be uniform, failing to meet standard requirements. In practice, manufacturers add louvers to the air outlet, adjusting the angle of each louver to achieve uniformity, which cannot achieve standardized production. Furthermore, adjusting the louvers is very time-consuming, requiring individual debugging for each device, thus reducing the ease of use. Therefore, we propose a high-temperature test chamber to solve the aforementioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a high-temperature test chamber that solves the problem of not being able to form a uniform airflow field inside the chamber, thus affecting the temperature uniformity of the test chamber.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature test chamber, comprising a high-temperature chamber, a door at the opening end of the high-temperature chamber, an air duct assembly at the inner cavity of the high-temperature chamber away from the opening end, both ends of the air duct assembly being connected to the two side walls of the inner cavity of the high-temperature chamber respectively, a first through hole at the middle of the back of the high-temperature chamber, a suction assembly installed on the back of the high-temperature chamber, one end of the suction assembly penetrating through the inner cavity of the first through hole, and the suction end of the suction assembly being located at the air outlet end of the air duct assembly;

[0006] A heater is provided on the bottom surface of the inner cavity of the high-temperature chamber and at the air inlet end of the air duct assembly. A second through hole is provided on one side of the top surface of the high-temperature chamber, and a temperature sensor is provided in the inner cavity of the second through hole. A pressure balance port is provided on one side of the back of the high-temperature chamber.

[0007] Preferably, the air duct assembly includes an inverted U-shaped frame, a baffle is provided on one side surface of the inverted U-shaped frame located at the opening end of the high-temperature chamber, and a sealing plate is provided on one side surface of the inverted U-shaped frame located at the suction assembly.

[0008] A ventilation hole is provided at the center of the surface of the sealing plate, and a fixing frame is provided at both ends of the side wall of the sealing plate. The bottom ends of the two fixing frames are connected by a base plate.

[0009] Preferably, one end of the base plate is connected to the inner cavity of the high-temperature chamber and to the side facing the opening of the high-temperature chamber.

[0010] Preferably, the width of the inverted U-shaped frame is the same as the inner cavity width of the high-temperature chamber, and the height of the inverted U-shaped frame is less than the inner cavity height of the high-temperature chamber.

[0011] Preferably, the height and width of the inverted U-shaped frame are the same as the height and width of the baffle and the sealing plate.

[0012] Preferably, the suction assembly includes a bracket disposed on the back of the high-temperature chamber and a fan wheel disposed in the inner cavity of the high-temperature chamber, and a motor is disposed on the top surface of the bracket;

[0013] The motor's output end is equipped with a drive shaft, and the inner cavity of the first through hole is provided with a shaft seal. One end of the drive shaft passes through the inner cavity of the shaft seal and is connected to the wind turbine.

[0014] Preferably, it also includes a control host, which is located on one side of the high-temperature chamber.

[0015] Beneficial effects

[0016] This invention provides a high-temperature test chamber. Compared with the prior art, it has the following advantages:

[0017] This high-temperature test chamber, through its high-temperature chamber and door, forms a cavity that provides insulation to isolate internal and external temperature conduction. It also allows for the installation and fixation of components such as the air duct assembly, suction assembly, and heater. The suction assembly then draws air from the bottom of the air duct assembly into the cavity (e.g., through the air duct). Figure 3 (As shown), and then discharged from the middle of the back, and under the delivery of the suction assembly, the air discharged from the air duct assembly can flow upward, and then the discharged air will flow along the top wall of the cavity.

[0018] Because the air at the bottom of the cavity is drawn into the inner cavity of the air duct assembly, the air located on the top wall of the inner cavity flows downward, thus forming an air circulation to ensure the temperature uniformity within the cavity. Then, the heater can heat up the internal air, allowing users to easily conduct high-temperature tests on the product according to their needs. Since the heating causes the air to expand and the pressure to increase, the gas can be discharged through the pressure balance port to achieve pressure balance with the external environment, thereby improving the safety of equipment use. The temperature of the air flowing inside the cavity can be monitored by a temperature sensor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a side view of the present invention.

[0021] Figure 3 This is a schematic diagram of the airflow direction structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the air duct component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the exploded structure of the air duct component of this utility model;

[0024] Figure 6 This is a schematic diagram of the exploded structure of the suction component of this utility model.

[0025] In the diagram: 1. High-temperature chamber; 2. Chamber door; 3. Air duct assembly; 31. Inverted U-shaped frame; 32. Baffle; 33. Sealing plate; 34. Ventilation hole; 35. Fixing frame; 36. Base plate; 4. First through hole; 5. Suction assembly; 51. Bracket; 52. Motor; 53. Drive shaft; 54. Fan wheel; 55. Shaft seal; 6. Heater; 7. Second through hole; 8. Temperature sensor; 9. Pressure balance port; 10. Control host. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-3 This utility model provides a technical solution: a high-temperature test chamber, including a high-temperature chamber 1, a door 2 at the opening end of the high-temperature chamber 1, an air duct assembly 3 at the inner cavity of the high-temperature chamber 1 away from the opening end, the two ends of the air duct assembly 3 being connected to the two side walls of the inner cavity of the high-temperature chamber 1 respectively, a first through hole 4 at the middle of the back of the high-temperature chamber 1, a suction assembly 5 installed on the back of the high-temperature chamber 1, one end of the suction assembly 5 penetrating the inner cavity of the first through hole 4, and the suction end of the suction assembly 5 being located at the air outlet end of the air duct assembly 3; a heater 6 is provided on the bottom surface of the inner cavity of the high-temperature chamber 1 at the air inlet end of the air duct assembly 3, a second through hole 7 is provided on one side of the top surface of the high-temperature chamber 1, a temperature sensor 8 is provided in the inner cavity of the second through hole 7, and a pressure balance port 9 is provided on one side of the back of the high-temperature chamber 1;

[0028] The high-temperature chamber 1 and the chamber door 2 form a cavity and provide insulation to isolate internal and external temperature conduction. Simultaneously, they allow for the installation and fixation of equipment such as the air duct assembly 3, the suction assembly 5, and the heater 6. Then, through the operation of the suction assembly 5, air from the cavity is drawn in from the bottom of the air duct assembly 3 (e.g., ...). Figure 3 As shown), the air is then discharged from the middle of the back, and under the conveying of the suction component 5, the air discharged from the air duct component 3 can flow upward. Then the discharged air will flow along the top wall of the cavity. Since the air at the bottom of the cavity will be sucked into the cavity of the air duct component 3, the air located on the top wall of the cavity will flow downward, thus forming an air circulation, so as to ensure the temperature uniformity in the cavity. Then the heater 6 can heat up the internal air, so that users can easily conduct high-temperature tests on the product according to their needs. Since the heating will cause the air to expand and the pressure to increase, the gas can be discharged through the pressure balance port 9 and achieve pressure balance with the external environment, thereby improving the safety of equipment use. The temperature sensor 8 can monitor the temperature of the air flowing in the cavity.

[0029] See Figures 3-6 The air duct assembly 3 includes an inverted U-shaped frame 31. A baffle 32 is provided on one side of the inverted U-shaped frame 31 located at the opening end of the high-temperature chamber 1. A sealing plate 33 is provided on one side of the inverted U-shaped frame 31 located at the suction assembly 5. A ventilation hole 34 is provided at the center of the surface of the sealing plate 33. Fixing brackets 35 are provided at both ends of the side wall of the sealing plate 33. The bottom ends of the two fixing brackets 35 are connected by a base plate 36. One end of the base plate 36 is connected to the inner cavity of the high-temperature chamber 1 and is located on the side facing the opening end of the high-temperature chamber 1. The width and height of the inverted U-shaped frame 31 are... The inner cavity of the high temperature chamber 1 has the same width. The height of the inverted U-shaped frame 31 is less than the inner cavity height of the high temperature chamber 1. The height and width of the inverted U-shaped frame 31 are the same as the height and width of the baffle 32 and the sealing plate 33. The suction assembly 5 includes a bracket 51 set on the back of the high temperature chamber 1 and a fan wheel 54 set in the inner cavity of the high temperature chamber 1. A motor 52 is set on the top surface of the bracket 51. A drive shaft 53 is installed at the output end of the motor 52. A shaft seal 55 is set in the inner cavity of the first through hole 4. One end of the drive shaft 53 passes through the inner cavity of the shaft seal 55 and is connected to the fan wheel 54.

[0030] The inverted U-shaped bracket 31 in the air duct assembly 3, together with the baffle 32 and the sealing plate 33, forms a downward-facing air inlet hood. Two fixing brackets 35 can be installed on the outer wall of the sealing plate 33 or fixed inside the high-temperature chamber 1, thus securing the air inlet hood. Since a ventilation hole 34 is located at the center of the sealing plate 33, and the impeller 54 is positioned outside the ventilation hole 34, and the bottom ends of the two fixing brackets 35 are connected by a base plate 36, the motor 52 on the bracket 51 drives the impeller 54 to rotate at high speed via the drive shaft 53. This allows the impeller 54 to draw air from the air inlet hood through the ventilation hole 34. This allows the extracted air to be transported upwards, and the exhaust air will flow along the top wall of the cavity. Since the air at the bottom of the cavity is drawn into the inner cavity of the air inlet hood, the air located on the top wall of the cavity will flow downwards, thus forming an air circulation to ensure the temperature uniformity within the cavity. The shaft seal 55 ensures the stability of the drive shaft 53 rotation. Since the width of the inverted U-shaped frame 31 is the same as the width of the inner cavity of the high-temperature chamber 1, and the height of the inverted U-shaped frame 31 is less than the height of the inner cavity of the high-temperature chamber 1, it can prevent air from entering the inner cavity of the air inlet hood from both sides of the cavity, while also allowing the air to enter from the bottom of the air inlet hood and then flow outwards from the top side of the air inlet hood.

[0031] See Figure 1 , Figure 3 It also includes a control host 10, which is located on one side of the high-temperature chamber 1. It can conveniently and flexibly start the operation of the motor 52, heater 6 and temperature sensor 8 according to the user's needs, and can also receive the temperature data information sent by the temperature sensor 8, thereby controlling the temperature of the air inside the chamber.

[0032] During operation, the high-temperature chamber 1 and the chamber door 2 form a cavity, providing insulation to isolate internal and external temperature conduction. Simultaneously, they allow for the installation and fixation of equipment such as the air duct assembly 3, the suction assembly 5, and the heater 6. Then, through the operation of the suction assembly 5, air from the cavity is drawn in from the bottom of the air duct assembly 3 (e.g., ...). Figure 3 As shown), the air is then discharged from the middle of the back, and under the conveying of the suction component 5, the air discharged from the air duct component 3 can flow upward. Then the discharged air will flow along the top wall of the cavity. Since the air at the bottom of the cavity will be sucked into the cavity of the air duct component 3, the air located on the top wall of the cavity will flow downward, thus forming an air circulation, so as to ensure the temperature uniformity in the cavity. Then the heater 6 can heat up the internal air, so that users can easily conduct high-temperature tests on the product according to their needs. Since the heating will cause the air to expand and the pressure to increase, the gas can be discharged through the pressure balance port 9 and achieve pressure balance with the external environment, thereby improving the safety of equipment use. The temperature sensor 8 can monitor the temperature of the air flowing in the cavity.

[0033] The inverted U-shaped bracket 31 in the air duct assembly 3, together with the baffle 32 and the sealing plate 33, forms a downward-facing air inlet hood. Two fixing brackets 35 can be installed on the outer wall of the sealing plate 33 or fixed inside the high-temperature chamber 1, thus securing the air inlet hood. Since a ventilation hole 34 is located at the center of the sealing plate 33, and the impeller 54 is positioned outside the ventilation hole 34, and the bottom ends of the two fixing brackets 35 are connected by a base plate 36, the motor 52 on the bracket 51 drives the impeller 54 to rotate at high speed via the drive shaft 53. This allows the impeller 54 to draw air from the air inlet hood through the ventilation hole 34. This allows the extracted air to be transported upwards, and the exhaust air will flow along the top wall of the cavity. Since the air at the bottom of the cavity is drawn into the inner cavity of the air inlet hood, the air located on the top wall of the cavity will flow downwards, thus forming an air circulation to ensure the temperature uniformity within the cavity. The shaft seal 55 ensures the stability of the drive shaft 53 rotation. Since the width of the inverted U-shaped frame 31 is the same as the width of the inner cavity of the high-temperature chamber 1, and the height of the inverted U-shaped frame 31 is less than the height of the inner cavity of the high-temperature chamber 1, it can prevent air from entering the inner cavity of the air inlet hood from both sides of the cavity, while also allowing the air to enter from the bottom of the air inlet hood and then flow outwards from the top side of the air inlet hood.

[0034] By controlling the host 10, users can easily and flexibly start the motor 52, heater 6, and temperature sensor 8 according to their needs, and can also receive temperature data information sent by the temperature sensor 8, thereby controlling the temperature of the air inside the cavity.

[0035] In summary, the device can circulate the air in the cavity through the suction component (5), and the air duct component (3) can constrain the airflow direction to optimize the temperature uniformity in the cavity. At the same time, the heater can heat the internal air as needed, thereby enabling high-temperature testing of the product.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A high temperature test chamber comprising a high temperature chamber (1) provided with a chamber door (2) at an open end thereof, characterised in that: The inner cavity of the high-temperature box (1) is provided with an air duct assembly (3) away from the opening end position, both ends of the air duct assembly (3) are connected with the two side walls of the inner cavity of the high-temperature box (1), a first through hole (4) is arranged in the middle position of the back surface of the high-temperature box (1), a suction assembly (5) is installed on the back surface of the high-temperature box (1), one end of the suction assembly (5) penetrates the inner cavity of the first through hole (4), and the suction end of the suction assembly (5) is located at the air outlet end of the air duct assembly (3); The inner cavity bottom surface of the high-temperature box (1) is provided with a heater (6) at the air inlet end of the air duct assembly (3), a second through hole (7) is arranged on one side of the top surface of the high-temperature box (1), a temperature sensor (8) is arranged in the inner cavity of the second through hole (7), and a pressure balance port (9) is arranged on one side of the back surface of the high-temperature box (1).

2. The high temperature test chamber of claim 1, wherein: The air duct assembly (3) comprises an inverted U-shaped frame (31), a baffle (32) is arranged on one side surface of the inverted U-shaped frame (31) at the opening end of the high-temperature box (1), and a sealing plate (33) is arranged on one side surface of the suction assembly (5) on the inverted U-shaped frame (31). A ventilation hole (34) is arranged in the center position of the surface of the sealing plate (33), and a fixing frame (35) is arranged at both end positions of the side wall of the sealing plate (33).

3. The high temperature test chamber of claim 2, wherein: One end of the bottom plate (36) is connected with the inner cavity of the high-temperature box (1) on the side surface opposite to the opening end of the high-temperature box (1).

4. The high temperature test chamber of claim 2, wherein: The width of the inverted U-shaped frame (31) is the same as the width of the inner cavity of the high-temperature box (1), and the height of the inverted U-shaped frame (31) is less than the height of the inner cavity of the high-temperature box (1).

5. The high temperature test chamber of claim 2, wherein: The height and width of the inverted U-shaped frame (31) are the same as the height and width of the baffle (32) and the sealing plate (33).

6. The high temperature test chamber of claim 1, wherein: The suction assembly (5) comprises a bracket (51) arranged on the back surface of the high-temperature box (1) and a fan wheel (54) arranged in the inner cavity of the high-temperature box (1), and a motor (52) is arranged on the top surface of the bracket (51). The output end of the motor (52) is provided with a driving shaft (53), the inner cavity of the first through hole (4) is provided with a shaft seal (55), and one end of the driving shaft (53) penetrates the inner cavity of the shaft seal (55) and is connected with the fan wheel (54).

7. The high temperature test chamber of claim 1, wherein: A control host (10) is further arranged on one side of the high-temperature box (1).

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