CN113559943A - High-low temperature test box - Google Patents
High-low temperature test box Download PDFInfo
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- CN113559943A CN113559943A CN202110980836.2A CN202110980836A CN113559943A CN 113559943 A CN113559943 A CN 113559943A CN 202110980836 A CN202110980836 A CN 202110980836A CN 113559943 A CN113559943 A CN 113559943A
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- air flow
- wall
- low temperature
- test chamber
- temperature test
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- 238000012360 testing method Methods 0.000 title claims abstract description 95
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a high-low temperature test chamber, which comprises: a test box main body; the air flow adjusting device is arranged in the test box main body and comprises a plurality of outer walls, and a cavity for accommodating a measured object is formed by surrounding the outer walls; a plurality of at least one in the outer wall is for having the air feed stream and entering the air flow adjusting plate of the open structure of cavity, the air current in the test box main part passes through air flow adjusting plate's open structure gets into in the cavity. According to the high-low temperature test box provided by the invention, the air flow adjusting device is arranged in the test box main body, so that the temperature in the cavity is approximately the same as the temperature in the test box main body (outside the air flow adjusting device) through the action of heat conduction, and the ambient temperature of a measured object cannot be influenced; and moreover, the air flow speed of the object to be measured can be adjusted through the opening structure of the air flow adjusting plate, so that the adjustment can be performed according to the test standard, and the requirements of the environmental test standard on the air flow speed parameters are met.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to a high-low temperature test box.
Background
The current high-low temperature test box is a common air box, namely, the purpose of controlling the temperature is achieved by supplying air into the main body of the test box. And the main body of the test chamber can not artificially control the air flow speed. For example, the air flow velocity of the air outlet of the test box can reach 4m/s, the air flow velocity of the central test point is 0.5-1 m/s, and the air flow velocity of the four corner test points is 0.5 m/s. The air flow speed of the air outlet cannot meet the requirement that the relevant test of the environmental test standard GB-T2423 is less than 0.2 m/s.
Therefore, how to adjust the air flow speed to meet the requirements of the environmental test standard on the air flow speed parameters is an urgent problem to be solved by the technical personnel.
Disclosure of Invention
In view of the above, the present invention provides a high and low temperature test chamber to adjust the air flow speed, so as to meet the requirements of the environmental test standards on the air flow speed parameters.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-low temperature test chamber comprising:
a test box main body;
the air flow adjusting device is arranged in the test box main body and comprises a plurality of outer walls, and a cavity for accommodating a measured object is formed by surrounding the outer walls; a plurality of at least one in the outer wall is for having the air feed stream and entering the air flow adjusting plate of the open structure of cavity, the air current in the test box main part passes through air flow adjusting plate's open structure gets into in the cavity.
Optionally, in the above-mentioned high low temperature test box, the air flow adjusting device further includes a box body skeleton, and is a plurality of the outer wall detachably install in on the box body skeleton.
Optionally, in the high and low temperature test box, a first outer wall facing the air outlet is arranged in the plurality of outer walls, and the first outer wall is a closed panel without an opening.
Optionally, in the high-low temperature test box, the airflow adjusting device is a cuboid;
the plurality of outer walls comprise the first outer wall, a second outer wall, a first side wall, a second side wall and a top wall;
the second outer wall is arranged opposite to the first outer wall; the first side wall and the second side wall are oppositely arranged and connected with the first outer wall and the second outer wall.
Optionally, in the high and low temperature test chamber, the bottom of the air flow adjusting device is in contact with the inner bottom surface of the test chamber main body.
Optionally, in the high and low temperature test box, the first side wall and the second side wall are the airflow adjusting plate.
Optionally, in the high and low temperature test box, the second outer wall has a test hole for the test wire to penetrate.
Optionally, in the high and low temperature test box, the opening structure includes a plurality of openings uniformly distributed on the airflow adjusting plate;
or the opening structure is a plurality of transverse strip gaps arranged along the transverse direction of the airflow adjusting plate, and the plurality of transverse strip gaps are uniformly distributed along the longitudinal direction of the airflow adjusting plate;
or, the open structure is a plurality of edges the vertical bar breach of the vertical setting of air adjustment board is a plurality of the vertical bar breach is followed the horizontal evenly distributed of air adjustment board.
Optionally, in the high-low temperature test box, the box body framework is provided with an insertion groove;
the outer wall can be inserted into the insertion groove.
Optionally, in the high and low temperature test chamber, V1≤V2/5；
Wherein the content of the first and second substances,
V1is the volume of the gas flow regulating device;
V2is the volume of the high-low temperature test chamber.
According to the technical scheme, the airflow adjusting device is arranged in the test box main body, so that airflow in the test box main body enters the cavity through the opening structure of the airflow adjusting plate and then contacts with the measured object in the cavity. Because the air flow regulating device is arranged in the test box main body, the temperature in the cavity is approximately the same as the temperature in the test box main body (outside the air flow regulating device) through the action of heat conduction, and the ambient temperature of a measured object cannot be influenced; and moreover, the air flow speed of the object to be measured can be adjusted through the opening structure of the air flow adjusting plate, so that the adjustment can be performed according to the test standard, and the requirements of the environmental test standard on the air flow speed parameters are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an air flow adjusting device of a high-low temperature test chamber according to an embodiment of the present invention.
Detailed Description
The invention discloses a high-low temperature test chamber, which is used for providing refrigerating capacity and ensuring that a system does not obviously reduce the generating capacity because of providing extra refrigeration.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a high-low temperature test chamber, which includes a test chamber main body and an air flow adjusting device disposed in the test chamber main body. The airflow adjusting device comprises a plurality of outer walls, and a cavity for accommodating the measured object is formed by the plurality of outer walls; at least one of the outer walls is an air flow adjusting plate with an opening structure for air flow to enter the cavity, and air flow in the test box main body enters the cavity through the opening structure of the air flow adjusting plate.
According to the high-low temperature test box provided by the embodiment of the invention, the airflow adjusting device is arranged in the test box main body, so that airflow in the test box main body enters the cavity through the opening structure of the airflow adjusting plate and then contacts with a measured object contained in the cavity. Because the air flow regulating device is arranged in the test box main body, the temperature in the cavity is approximately the same as the temperature in the test box main body (outside the air flow regulating device) through the action of heat conduction, and the ambient temperature of a measured object cannot be influenced; and moreover, the air flow speed of the object to be measured can be adjusted through the opening structure of the air flow adjusting plate, so that the adjustment can be performed according to the test standard, and the requirements of the environmental test standard on the air flow speed parameters are met.
In order to improve the commonality, the air flow adjusting device further comprises a box body framework, and a plurality of outer walls are detachably arranged on the box body framework. The outer walls are detachably arranged on the box body framework, so that the position of the airflow adjusting plate on the airflow adjusting device is adjustable; and, can set up the airflow adjustment board of multiple structure for opening structure on the multiple airflow adjustment board is different, so that carry out the selection of airflow adjustment board according to experimental standard, install suitable airflow adjustment board on airflow adjustment device.
In this embodiment, the plurality of outer walls have a first outer wall 1 facing the air outlet, and the first outer wall 1 is a closed panel without an opening. Through the arrangement, the phenomenon that the airflow flowing into the test box main body from the air outlet directly enters the cavity through the opening structure of the airflow adjusting plate is avoided, and the airflow impact on the measured object is reduced.
As shown in fig. 1, the air flow adjusting device in the present embodiment is a rectangular parallelepiped; the plurality of outer walls comprise a first outer wall 1, a second outer wall 2, a first side wall 3, a second side wall 4 and a top wall 5; the second outer wall 2 is arranged opposite to the first outer wall 1; the first side wall 3 is disposed opposite to the second side wall 4 and connects the first outer wall 1 and the second outer wall 2. The design can facilitate the processing of the airflow adjusting device and the volume design of the cavity of the airflow adjusting device. Of course, the air flow adjusting device may also be configured as a cylinder structure, a cone structure, or a triangular prism structure, etc., which are not described in detail herein and are all within the protection scope.
In order to facilitate the placement of the object to be tested in the chamber and also simplify the structure of the air flow regulating device, it is preferable that the bottom 6 of the air flow regulating device is in contact with the inner bottom surface of the test chamber main body. In the actual test process, the measured object is placed on the inner bottom surface of the test box main body, and then the assembled air flow adjusting device is buckled on the measured object through the bottom 6 (bottom opening) of the air flow adjusting device, so that the measured object is located in the cavity of the air flow adjusting device. The bottom surface of the air flow adjusting device can be set to be a closed panel, and a measured object is placed in the cavity through the detachable connection of the top surface or the outer side wall (the first outer wall 1, the second outer wall 2, the first side wall 3 and the second side wall 4) of the air flow adjusting device and the box body framework.
In this embodiment, the first sidewall 3 and the second sidewall 4 are airflow adjusting plates. Through the arrangement, the airflow flowing into the test box main body from the air outlet enters and exits the cavity through the first side wall 3 and the second side wall 4, and the design of the airflow adjusting device is facilitated. In this embodiment, the first side wall 3 may be a face facing the operator, and the second side wall 4 may be a face facing away from the operator. The top wall 5 is preferably a closure panel.
Further, the second outer wall 2 has a test hole through which the test wire penetrates. Of course, it is also possible to thread the test wire from the bottom 6 of the air flow regulating device into the cavity of the air flow regulating device.
In a first embodiment, the flow-regulating plate has a plurality of uniformly distributed openings. That is, the opening structure includes a plurality of openings uniformly distributed on the airflow adjusting plate. Wherein, the opening is preferably a round hole, and the diameter of the round hole is preferably 1cm +/-0.1 cm. Of course, hexagonal holes (honeycomb holes), elliptical holes, triangular holes, or the like may be provided.
In a second embodiment, the airflow adjusting plate is provided with a plurality of cross bar notches arranged along the transverse direction of the airflow adjusting plate, and the plurality of cross bar notches are uniformly distributed along the longitudinal direction of the airflow adjusting plate. That is, the open structure is a plurality of horizontal bar breach that sets up along the air current regulating plate's transversely, and a plurality of horizontal bar breach are along the vertical evenly distributed of air current regulating plate.
Preferably, the length of the cross bar notch is approximately equal to the transverse length of the air flow adjusting plate, so that the edges of two sides of the air flow adjusting plate are provided with a certain connecting structure, the length of the cross bar notch is less than the transverse length of the air flow adjusting plate, the air flow adjusting plate is conveniently arranged into a whole plate, and the assembly is convenient.
In a third embodiment, the airflow adjusting plate is provided with a plurality of vertical bar notches arranged along the longitudinal direction of the airflow adjusting plate, and the plurality of vertical bar notches are uniformly distributed along the transverse direction of the airflow adjusting plate. That is, the open structure is a plurality of vertical bar gaps arranged along the longitudinal direction of the airflow adjusting plate, and the plurality of vertical bar gaps are uniformly distributed along the transverse direction of the airflow adjusting plate.
Preferably, the length of the vertical bar notch is approximately equal to the longitudinal length of the air flow adjusting plate, so that the upper edge and the lower edge of the air flow adjusting plate are provided with a certain connecting structure, the length of the vertical bar notch is less than the longitudinal length of the air flow adjusting plate, the air flow adjusting plate is conveniently arranged into a whole plate, and the assembly is convenient.
The opening structure can be further arranged to be an oblique strip notch, namely, the extending direction of the oblique strip notch and the longitudinal direction and the transverse direction of the airflow adjusting plate are arranged at a certain included angle.
In order to facilitate the installation, the box body framework is provided with an inserting groove; the outer wall can be inserted into the insertion groove. The box body framework can be a structure formed by connecting a plurality of supporting rods, grooves are formed in the supporting rods, and inserting grooves formed by the grooves formed in the two symmetrically-arranged supporting rods are used for installing the outer wall between the two supporting rods. Of course, the outer wall can be detachably connected to the box body framework in other modes, such as buckle connection, bolt connection or adhesive connection.
V1≤V2/5；
Wherein, V1Is the volume of the gas flow regulating device; v2Is the volume of the high and low temperature test chamber.
Currently, in some test standards for high and low temperature test chambers (e.g., damp heat test), volume specifications for the test object cannot exceed the test chamber body volume 1/5. Therefore, in order to avoid the influence of the air flow adjusting device on the air flow circulation as much as possible, the volume of the air flow adjusting device cannot exceed the test chamber main body volume 1/5. Of course, other non-specified volumes for the high and low temperature test chamber may be achieved by industry convention to achieve test chamber body volume 1/3. Therefore, the volume of the air flow control device can be appropriately designed according to the object to be measured and the type of test, and is not particularly limited herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-low temperature test chamber, comprising:
a test box main body;
the air flow adjusting device is arranged in the test box main body and comprises a plurality of outer walls, and a cavity for accommodating a measured object is formed by surrounding the outer walls; a plurality of at least one in the outer wall is for having the air feed stream and entering the air flow adjusting plate of the open structure of cavity, the air current in the test box main part passes through air flow adjusting plate's open structure gets into in the cavity.
2. The high-low temperature test chamber as claimed in claim 1, wherein the air flow adjusting device further comprises a box body frame, and a plurality of the outer walls are detachably mounted on the box body frame.
3. High-low temperature test chamber according to claim 2, characterized in that a plurality of said external walls have a first external wall (1) facing the air outlet, said first external wall (1) being a closed panel without an opening.
4. The high-low temperature test chamber as claimed in claim 3, wherein the air flow regulating device is a rectangular parallelepiped;
the plurality of outer walls comprise the first outer wall (1), the second outer wall (2), a first side wall (3), a second side wall (4) and a top wall (5);
the second outer wall (2) is arranged opposite to the first outer wall (1); the first side wall (3) and the second side wall (4) are arranged oppositely and connected with the first outer wall (1) and the second outer wall (2).
5. The high-low temperature test chamber as claimed in claim 4, wherein the bottom (6) of the gas flow regulating device is in contact with the inner bottom surface of the test chamber main body.
6. High-low temperature test chamber according to claim 4, wherein the first side wall (3) and the second side wall (4) are the air flow regulating plates.
7. A high-low temperature test chamber as claimed in claim 4, wherein the second outer wall (2) has a test hole through which a test wire is passed.
8. The high-low temperature test chamber as claimed in claim 2, wherein the opening structure includes a plurality of openings uniformly distributed on the air flow adjustment plate;
or the opening structure is a plurality of transverse strip gaps arranged along the transverse direction of the airflow adjusting plate, and the plurality of transverse strip gaps are uniformly distributed along the longitudinal direction of the airflow adjusting plate;
or, the open structure is a plurality of edges the vertical bar breach of the vertical setting of air adjustment board is a plurality of the vertical bar breach is followed the horizontal evenly distributed of air adjustment board.
9. The high-low temperature test chamber as claimed in claim 2, wherein the box body framework is provided with an insertion groove;
the outer wall can be inserted into the insertion groove.
10. The high-low temperature test chamber according to any one of claims 1 to 9,
V1≤V2/5；
wherein the content of the first and second substances,
V1is the volume of the gas flow regulating device;
V2is the volume of the high-low temperature test chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110980836.2A CN113559943A (en) | 2021-08-25 | 2021-08-25 | High-low temperature test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110980836.2A CN113559943A (en) | 2021-08-25 | 2021-08-25 | High-low temperature test box |
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| CN113559943A true CN113559943A (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110980836.2A Pending CN113559943A (en) | 2021-08-25 | 2021-08-25 | High-low temperature test box |
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| CN (1) | CN113559943A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09276715A (en) * | 1996-04-11 | 1997-10-28 | Tabai Espec Corp | Constant temperature device with adjustable temperature distribution |
| JPH10115658A (en) * | 1996-10-14 | 1998-05-06 | Orion Mach Co Ltd | Temperature test device |
| CN109365010A (en) * | 2018-12-14 | 2019-02-22 | 广州斯派克环境仪器有限公司 | A kind of high-and-low temperature humid heat test box |
| CN208810091U (en) * | 2018-07-31 | 2019-05-03 | 广州威德玛环境仪器有限公司 | A kind of torsional mode air quantity adjusting blinds |
| CN109752313A (en) * | 2019-03-06 | 2019-05-14 | 湖北硕星油墨科技有限公司 | A kind of ink high-low temperature test chamber |
| CN211612740U (en) * | 2019-12-16 | 2020-10-02 | 无锡苏南试验设备有限公司 | High-low temperature test box with rapid temperature change |
-
2021
- 2021-08-25 CN CN202110980836.2A patent/CN113559943A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09276715A (en) * | 1996-04-11 | 1997-10-28 | Tabai Espec Corp | Constant temperature device with adjustable temperature distribution |
| JPH10115658A (en) * | 1996-10-14 | 1998-05-06 | Orion Mach Co Ltd | Temperature test device |
| CN208810091U (en) * | 2018-07-31 | 2019-05-03 | 广州威德玛环境仪器有限公司 | A kind of torsional mode air quantity adjusting blinds |
| CN109365010A (en) * | 2018-12-14 | 2019-02-22 | 广州斯派克环境仪器有限公司 | A kind of high-and-low temperature humid heat test box |
| CN109752313A (en) * | 2019-03-06 | 2019-05-14 | 湖北硕星油墨科技有限公司 | A kind of ink high-low temperature test chamber |
| CN211612740U (en) * | 2019-12-16 | 2020-10-02 | 无锡苏南试验设备有限公司 | High-low temperature test box with rapid temperature change |
Non-Patent Citations (3)
| Title |
|---|
| 余跃进等, 东南大学出版社, pages: 215 * |
| 余跃进等: "《中央空调系统设计》", 31 July 2007, 东南大学出版社, pages: 215 * |
| 陈青云等: "《农业设施学》", 31 August 2001, 中国农业大学出版社, pages: 245 * |
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Application publication date: 20211029 |