CN217425260U - High-temperature aging and ventilation test box - Google Patents
High-temperature aging and ventilation test box Download PDFInfo
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- CN217425260U CN217425260U CN202123389730.XU CN202123389730U CN217425260U CN 217425260 U CN217425260 U CN 217425260U CN 202123389730 U CN202123389730 U CN 202123389730U CN 217425260 U CN217425260 U CN 217425260U
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Abstract
The high-temperature aging and air-changing test box comprises a box body, wherein a test room is arranged in the box body, an air-changing air channel is arranged between the box body and the test room, an air inlet pipe and an air outlet pipe are arranged on the box body in a penetrating manner, the air inlet pipe and the air outlet pipe are communicated with the air-changing air channel, and an air-changing fan is arranged at the position, located in the air-changing air channel, of the box body; a guide plate is arranged at the air inlet pipe of the box body, and the guide plate is obliquely arranged at the ventilation air duct; the box body is provided with a heater at the position of the ventilation air duct; a plurality of ventilation holes are formed in the two opposite side walls of the laboratory in a penetrating mode, and the ventilation holes are communicated with the ventilation air channel. This application has the effect of homogeneity and stability when improving to being surveyed the piece and carrying out the circulated air heat exchange.
Description
Technical Field
The application relates to the technical field of aging test boxes, in particular to a high-temperature aging ventilation test box.
Background
The air-exchange aging test box is suitable for heat resistance tests of electric insulating materials and air-exchange aging tests of electronic parts and plasticized products, the adaptability of the air-exchange aging test box in storage and use under a high-temperature environment is checked and judged, and the performance of a sample is measured and compared with the performance of an unaged sample after the sample is aged in air under simulated high-temperature and atmospheric pressure environments.
The utility model discloses a chinese utility model patent that grant bulletin number is CN202676893U discloses a take a breath ageing test case, including the box with set up on the box respectively, control area and circulating fan system of lower part, the box intermediate position is provided with two chamber doors of upper and lower push-and-pull formula of opening and close, be equipped with heat preservation and electrical equipment in the chamber door, the heat preservation is bilayer structure at least and its rear portion that is located the chamber door, electrical equipment is located the upper portion of control area, the position that circulating fan system was placed to the box lower part is provided with the louvre all around respectively, circulating fan system is connected with electrical system, the inside microcomputer control ware that includes of control area, microcomputer control ware is connected with electrical equipment.
With respect to the related art among the above, the inventors consider that the following drawbacks occur: when circulating fan carries out heated air circulation to the piece of being surveyed in the box, be difficult to guarantee that the circulated air carries out the heat exchange with the piece of being surveyed in the form of stable laminar flow, be difficult to carry out even heating to the piece of being surveyed.
SUMMERY OF THE UTILITY MODEL
In order to improve homogeneity and stability when carrying out the circulated air heat exchange to the piece under test, the application provides a high temperature ageing air exchange test case.
The application provides a high temperature aging test box adopts following technical scheme:
the high-temperature aging ventilation test box comprises a box body, wherein a test chamber is arranged in the box body, a ventilation air channel is arranged between the box body and the test chamber, an air inlet pipe and an air outlet pipe penetrate through the box body, the air inlet pipe and the air outlet pipe are communicated with the ventilation air channel, and a ventilation fan is arranged at the position, located in the ventilation air channel, of the box body; a guide plate is arranged at the air inlet pipe of the box body, and the guide plate is obliquely arranged at the ventilation air duct; the box body is provided with a heater at the position of the ventilation air duct; a plurality of ventilation holes are formed in the two opposite side walls of the laboratory in a penetrating mode, and the ventilation holes are communicated with the ventilation air channel.
By adopting the technical scheme, when a high-temperature aging test is carried out on a tested piece, the tested piece is installed in a test room, the ventilation fan sucks external air through the air inlet pipe, so that the external air enters a ventilation air channel between the box body and the test room and passes through the heater, the heater heats the air, the heated air enters the test room through the ventilation holes in the side wall of the test room, the hot air exchanges heat with the tested piece to heat the tested piece, and the hot air returns to the ventilation air channel from the ventilation hole in the other side of the test room and leaves the box body from the air outlet pipe; when outside air enters the ventilation air duct, the outside air is in contact with the heater through the flow guiding effect of the flow guide plate, and the air flow is guided. So set up for the air is being heated and is becoming hot-blast back, in the lateral wall entering laboratory from the laboratory, takes place the contact with the piece of being surveyed, can improve hot-blast contact uniformity and the stability with the piece of being surveyed.
Optionally, the ventilation air duct is divided into a left air duct, a lower air duct and a right air duct, and the left air duct, the lower air duct and the right air duct are communicated with each other; the ventilation fan is positioned at the communication position of the lower air duct and the right air duct, the air outlet pipe is positioned at the left air duct, the air inlet pipe is positioned at the lower air duct, the guide plate is obliquely arranged towards the ventilation fan, the heater is positioned at the lower air duct, and the heater is positioned between the air inlet pipe and the circulating fan; and the ventilation holes on the two sides of the test box are respectively communicated with the left air channel and the right air channel.
Optionally, a spoiler is arranged on the side wall of the laboratory, which is relatively close to the box body, and the spoiler is located at the right air duct.
Optionally, the spoiler is disposed to be inclined toward the ventilation fan.
Optionally, a test hole is formed in the box body and communicated with a test room.
Optionally, the guide plate is provided with a plurality of communicating holes.
In summary, the present application at least includes the following beneficial technical effects:
1. the laboratory is arranged in the box body, a ventilation air channel is arranged between the box body and the laboratory, an air inlet pipe and an air outlet pipe penetrate through the box body, the air inlet pipe and the air outlet pipe are communicated with the ventilation air channel, and a ventilation fan is arranged at the position, located in the ventilation air channel, of the box body; the box body is provided with a guide plate at the air inlet pipe, and the guide plate is obliquely arranged at the ventilation air duct; the box body is provided with a heater at the position of the ventilation air duct; a plurality of vent holes are formed in two opposite side walls of the test room in a penetrating manner, and the vent holes are communicated with the ventilation air duct; when a high-temperature aging test is carried out on a tested piece, the tested piece is installed in a test room, an air exchange fan absorbs external air through an air inlet pipe, so that the external air enters an air exchange air channel between a box body and the test room, the heater heats the air through a heater, the heated air enters the test room through a vent hole in the side wall of the test room, heat exchange is carried out between the hot air and the tested piece, so that the tested piece is heated, and the hot air returns to the air exchange air channel from the vent hole in the other side of the test room and leaves the box body from an air outlet pipe; when outside air enters the ventilation air duct, the outside air is in contact with the heater through the flow guiding effect of the flow guide plate, and the air flow is guided. So set up for the air is heated and becomes hot-blast back, in the lateral wall entering laboratory from the laboratory, takes place the contact with the piece of being surveyed, can improve hot-blast and the contact homogeneity and the stability of being surveyed the piece.
Drawings
FIG. 1 is a perspective view of a high temperature weathering chamber of the present example of application as a highlighted laboratory.
Description of the reference numerals: 1. a box body; 2. forming a plate; 3. a laboratory; 4. a test well; 6. a ventilation air duct; 61. a left air duct; 62. a lower air duct; 63. a right air duct; 7. a baffle; 8. a communicating hole; 9. a ventilation fan; 10. a vent hole; 11. a heater; 12. a spoiler.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses high temperature aging ventilation test box.
Referring to fig. 1, high temperature aging ventilation test box, including the box 1 that is the cuboid, there is the cavity in the box 1, and box 1 is located and is provided with the profiled sheeting 2 that is "Contraband" shape in the cavity, and profiled sheeting 2 constitutes a laboratory 3 that is the cuboid with the top lateral wall of box 1 jointly, when testing the piece to being surveyed, will be surveyed the piece and place in laboratory 3. Seted up on 1 lateral wall of box and being circular shape test hole 4, test hole 4 runs through 1 lateral wall of box and communicates each other with the test chamber, and box 1 is located and is provided with the sealing plug in the test hole 4.
Referring to fig. 1, an Contraband-shaped ventilation air duct 6 is formed between the inner side wall of a box body 1 and a forming plate 2, the ventilation air duct 6 comprises a left air duct 61, a lower air duct 62 and a right air duct 63 which are sequentially communicated, an air inlet pipe and an air outlet pipe are arranged on the box body 1 in a penetrating manner, the air inlet pipe and the air outlet pipe which are both cylindrical are communicated with the ventilation air duct 6, the air outlet pipe is arranged at the position of the left air duct 61, the air inlet pipe is arranged at the end part of the lower air duct 62 which is relatively close to the left air duct 61, a guide plate 7 is arranged at the position of the box body 1 which is connected with the air inlet pipe, one end of the guide plate 7, which is far away from the air inlet pipe, is abutted against the forming plate 2, a plurality of waist-shaped communication holes 8 are arranged on the guide plate 7 in a penetrating manner, and the guide plate 7 is obliquely arranged towards the direction far away from the left air duct 61; the box 1 is located the intercommunication department of lower wind channel 62 and right wind channel 63 and is provided with ventilation fan 9, and in the embodiment of this application, ventilation fan 9 is centrifugal fan.
Referring to fig. 1, a plurality of ventilation holes 10 are formed in two side walls of the forming plate 2 opposite to the left air duct 61 and the right air duct 63 in a penetrating manner, the ventilation holes 10 on two sides are respectively used for communicating the left air duct 61, the laboratory 3 and the right air duct 63, a tested piece is placed in the laboratory 3, the circulating fan works, outside air is sucked into the ventilation air duct 6, outside air enters the lower air duct 62 through the flow guiding effect of the guide plate 7 and continuously works along with the ventilation fan 9, the ventilation holes 10 located at the right air duct 63 from the forming plate 2 enter the laboratory 3, the ventilation holes 10 located at the left air duct 61 from the forming plate 2 flow back to the left air duct 61, and the air leaves the box body 1 from the air outlet pipe.
Referring to fig. 1, a plurality of heaters 11 are arranged at a lower air duct 62 of a box body 1, in the embodiment of the present application, the heaters 11 are electric heaters 11, the electric heaters 11 are made of nickel-chromium heating wires and insulating ceramics, the number of the heaters 11 is four, the four heaters 11 are symmetrically arranged in the box body 1 in pairs, and the heaters 11 are obliquely arranged in the box body 1 towards a left air duct 61. When the external air flows in the lower duct 62, the heater 11 heats the air, thereby changing the cool air into the hot air.
Referring to fig. 1, a spoiler 12 is disposed on a side wall of the forming plate 2, which is relatively close to the right air duct 63, the spoiler 12 is rectangular, the spoiler 12 is disposed in the right air duct 63, the spoiler 12 is inclined toward the ventilating fan 9, a gap is formed between one end of the spoiler 12, which is relatively far away from the forming plate 2, and an inner side wall of the box body 1, the spoiler 12 is disposed in a middle portion of the side wall of the forming plate 2, when hot air enters the right air duct 63, the hot air flowing to the spoiler 12 enters the test chamber 3 from the vent holes 10 below the spoiler 12, the hot air flowing to the upper side of the spoiler 12 enters the test chamber 3 from other vent holes 10, and the spoiler 12 is disposed to improve uniformity of the hot air entering the test chamber 3.
The implementation principle of the high-temperature aging ventilation test box in the embodiment of the application is as follows: when a high-temperature aging test is carried out on a tested piece, the tested piece is installed in a test room 3, an air exchange fan 9 absorbs external air through an air inlet pipe, so that the external air enters a ventilation air duct 6 between a box body 1 and the test room and passes through a heater 11, the heater 11 heats the air, the heated air enters the test room 3 through a ventilation hole 10 in the side wall of the test room 3, the hot air exchanges heat with the tested piece to heat the tested piece, the hot air returns to the ventilation air duct 6 from the ventilation hole 10 in the other side of the test room 3, and the hot air leaves the box body 1 through an air outlet pipe; when the outside air enters the ventilation air duct 6, the outside air contacts the heater 11 through the flow guiding effect of the flow guiding plate 7, and the air flow is guided. So set up for the air is heated and becomes hot-blast back, in the lateral wall entering laboratory 3 of laboratory 3, takes place the contact with the piece of being surveyed, can improve hot-blast and the contact uniformity and the stability of being surveyed the piece.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. High temperature ageing air exchange test box, its characterized in that: the air-conditioning device comprises a box body (1), wherein a laboratory (3) is arranged in the box body (1), an air-exchanging air channel (6) is arranged between the box body (1) and the laboratory (3), an air inlet pipe and an air outlet pipe are arranged on the box body (1) in a penetrating manner, the air inlet pipe and the air outlet pipe are communicated with the air-exchanging air channel (6), and an air-exchanging fan (9) is arranged at the position, located on the air-exchanging air channel (6), of the box body (1); a guide plate (7) is arranged at the air inlet pipe of the box body (1), and the guide plate (7) is obliquely arranged at the ventilation air duct (6); a heater (11) is arranged at the position of the air exchange duct (6) of the box body (1); run through on the relative both sides wall of laboratory (3) and seted up a plurality of ventilation holes (10), ventilation hole (10) and ventilation air duct (6) intercommunication each other.
2. The high-temperature aging air-exchange test chamber according to claim 1, characterized in that: the ventilation air duct (6) is divided into a left air duct (61), a lower air duct (62) and a right air duct (63), and the left air duct (61), the lower air duct (62) and the right air duct (63) are communicated with each other; the ventilation fan (9) is positioned at the communication position of the lower air duct (62) and the right air duct (63), the air outlet pipe is positioned at the left air duct (61), the air inlet pipe is positioned at the lower air duct (62), the guide plate (7) is obliquely arranged towards the ventilation fan (9), the heater (11) is positioned at the lower air duct (62), and the heater (11) is positioned between the air inlet pipe and the circulating fan; the vent holes (10) on the two sides of the test box are respectively communicated with the left air duct (61) and the right air duct (63).
3. The high-temperature aging air-exchange test chamber according to claim 2, characterized in that: the side wall of the laboratory (3) relatively close to the box body (1) is provided with a spoiler (12), and the spoiler (12) is positioned at the right air duct (63).
4. The high-temperature aging air-exchange test chamber according to claim 3, characterized in that: the spoiler (12) is obliquely arranged towards the ventilation fan (9).
5. The high temperature aging air exchange test chamber of claim 1, wherein: the testing device is characterized in that a testing hole (4) is formed in the box body (1), and the testing hole (4) is communicated with the laboratory (3).
6. The high-temperature aging air-exchange test chamber according to claim 1, characterized in that: the guide plate (7) is provided with a plurality of communicating holes (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123389730.XU CN217425260U (en) | 2021-12-30 | 2021-12-30 | High-temperature aging and ventilation test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123389730.XU CN217425260U (en) | 2021-12-30 | 2021-12-30 | High-temperature aging and ventilation test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217425260U true CN217425260U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123389730.XU Active CN217425260U (en) | 2021-12-30 | 2021-12-30 | High-temperature aging and ventilation test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217425260U (en) |
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2021
- 2021-12-30 CN CN202123389730.XU patent/CN217425260U/en active Active
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