CN111537017A - Three-box low-pressure cold and hot impact box - Google Patents
Three-box low-pressure cold and hot impact box Download PDFInfo
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- CN111537017A CN111537017A CN202010524075.5A CN202010524075A CN111537017A CN 111537017 A CN111537017 A CN 111537017A CN 202010524075 A CN202010524075 A CN 202010524075A CN 111537017 A CN111537017 A CN 111537017A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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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
- B01L1/02—Air-pressure chambers; Air-locks therefor
- B01L1/025—Environmental chambers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/26—Windows; Cover glasses; Sealings therefor
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Abstract
The invention discloses a three-box low-pressure cold and hot impact box which comprises a pressure-bearing box body, wherein a high-temperature chamber, a low-temperature chamber and a test room are arranged in the pressure-bearing box body; a high-temperature air circulation channel is arranged between the high-temperature chamber and the test room; a low-temperature air circulation channel is arranged between the low-temperature chamber and the test chamber; the pressure-bearing box body is provided with a first low-pressure storage test pipeline and/or a second low-pressure storage test pipeline and/or a third low-pressure storage test pipeline and/or a first vacuumizing pipeline and/or a second vacuumizing pipeline which are connected with a vacuum pump. The invention integrates the cold and hot low-pressure impact test function, enhances the practicability of the impact box, realizes the instant pressure test environment switching, improves the working efficiency, brings great convenience and is suitable for large-scale popularization and application.
Description
Technical Field
The invention relates to the technical field of cold-hot impact tests, in particular to a three-box low-air-pressure cold-hot impact box.
Background
The cold and hot impact test is also called temperature impact test or high and low temperature impact test, is used for checking the adaptability of the product to the rapid change of the ambient temperature, is an indispensable test in an identification test of equipment design and shaping and a routine test in a batch production stage, and can be used for an environmental stress screening test under some conditions, testing the chemical change or physical damage caused by expansion with heat and contraction with cold, and confirming the quality of the product.
At present, the existing cold and hot impact test has no low-pressure cold and hot impact, and if the low pressure is added, most of the cold and hot impact tests are operated independently by a single machine, namely, the low-pressure high-temperature test and the low-pressure low-temperature test are carried out by secondary setting. Therefore, a large amount of time is consumed in the process of switching from the low-pressure high-temperature environment to the low-pressure low-temperature environment or switching from the low-pressure low-temperature environment to the low-pressure high-temperature environment, so that the low-pressure cold and heat shock and the low-pressure cold and heat shock requirements required by customers cannot be met, the test effect is not actually required, and great inconvenience is brought to users.
Disclosure of Invention
The invention provides a three-box low-pressure cold and hot impact box, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a three-box low-pressure cold and hot impact box comprises an outer pressure-bearing box body or an inner pressure-bearing box body, wherein a high-temperature chamber, a low-temperature chamber and a test room positioned between the high-temperature chamber and the low-temperature chamber are arranged in the pressure-bearing box body, a heater and/or an evaporator and a circulating fan are arranged in the high-temperature chamber and the low-temperature chamber
A high-temperature air circulation channel is arranged between the high-temperature chamber and the test room and used for heating and conveying the prepared high-temperature low-pressure gas into the test room through the high-temperature air circulation channel;
a low-temperature air circulation channel is arranged between the low-temperature chamber and the test chamber and is used for refrigerating and conveying the prepared low-temperature low-pressure gas into the test chamber through the low-temperature air circulation channel;
the pressure-bearing box body is provided with at least a vacuum pump, a low-pressure pre-arranged tank, a pipeline connected with a high-temperature low-pressure test chamber and a low-temperature low-pressure test chamber and a valve on the pipeline;
at least one pressure relief control valve is arranged on the pressure-bearing box body or the pipeline connected with the pressure-bearing box body.
Furthermore, in the three-box low-pressure cold and hot shock box, a first low-pressure storage test pipeline and/or a second low-pressure storage test pipeline and/or a third low-pressure storage test pipeline and/or a first vacuumizing pipeline and a second vacuumizing pipeline which are connected with a vacuum pump are arranged on the pressure-bearing box body; the first low-pressure storage test pipeline and/or the first vacuumizing pipeline are/is communicated with the high-temperature chamber, the second low-pressure storage test pipeline and/or the second vacuumizing pipeline are/is communicated with the low-temperature chamber, and the third low-pressure storage test pipeline is/are communicated with the test chamber;
the first vacuumizing pipeline is provided with a first one-way valve and/or a first valve in sequence along the direction from the vacuum pump to the pressure-bearing box body;
the second vacuumizing pipeline is provided with a second one-way valve and/or a second valve in sequence along the direction from the vacuum pump to the pressure-bearing box body;
the first low-pressure storage test pipeline and/or the second low-pressure storage test pipeline and/or the third low-pressure storage test pipeline are/is provided with a third valve, a low-pressure preset tank and a fourth valve in sequence along the direction from the vacuum pump to the pressure-bearing box body;
further, in the three low-pressure cold and hot shock boxes, the vacuum pump is respectively connected with the first low-pressure storage test pipeline and/or the second low-pressure storage test pipeline and/or the third low-pressure storage test pipeline and/or the first vacuumizing pipeline and/or the second vacuumizing pipeline through a vacuumizing gas cooling device.
Further, in the three-box low-pressure cold and hot impact box, the high-temperature air circulation channel comprises a first sealing turning plate and a second sealing turning plate;
the first sealing turning plate and the second sealing turning plate are respectively used for communicating the high-temperature chamber with the laboratory.
Further, in the three-box low-pressure cold and hot impact box, the low-temperature air circulation channel comprises a third sealing turnover plate and a fourth sealing turnover plate;
the third sealing turning plate and the fourth sealing turning plate are respectively used for communicating the high-temperature chamber with the laboratory.
Furthermore, in the three-box low-pressure cold and hot shock box, at least two turnover plate actuators are arranged outside the pressure-bearing box body;
the turning plate actuator is respectively connected with the first sealing turning plate, the second sealing turning plate, the third sealing turning plate and the fourth sealing turning plate through two sealing turning plate shafts to control the turning plates to be opened and closed.
Furthermore, in the three-box low-pressure cold and hot shock box, an outer pressure bearing cover fixedly connected with the pressure bearing box body is arranged outside the turning plate actuator;
and a sealing ring is arranged between the outer pressure bearing cover and the pressure bearing box body.
Furthermore, in the three boxes of low-pressure cold and hot impact boxes, the circulating fan is arranged in the laboratory;
and each circulating fan is respectively connected with a corresponding magnetic sealing motor arranged outside the pressure-bearing box body and driven by the corresponding magnetic sealing motor.
The three-box low-air-pressure cold and hot impact box provided by the embodiment of the invention integrates the cold and hot low-air-pressure impact test function, enhances the practicability of the impact box, realizes the instant pressure test environment switching, improves the working efficiency, brings great convenience to users, and is suitable for large-scale popularization and application.
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, and 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 these drawings without inventive exercise.
FIG. 1 is a schematic structural side view of a three-box low-pressure cold and hot impact box according to an embodiment of the present invention;
fig. 2 is a schematic top view of a three-box low-pressure cold and hot impact box according to an embodiment of the present invention.
Reference numerals:
the device comprises a pressure-bearing box body 1, a high-temperature chamber 2, a low-temperature chamber 3, a test chamber 4, a vacuum pump 5, a first check valve 6, a first valve 7, a second check valve 8, a second valve 9, a third valve 10, a low-pressure pre-tank 11, a fourth valve 12, a vacuumizing gas cooling device 13, a control pressure relief valve 14, a first sealing turnover plate 17, a second sealing turnover plate 18, a third sealing turnover plate 19, a fourth sealing turnover plate 20, a turnover plate actuator 21, a sealing turnover plate shaft 22, an outer pressure-bearing cover 23, a sealing ring 24, a heater 25, an evaporator 26, a circulating fan 27, a magnetic sealing motor 28, a first low-pressure storage test pipeline 1001, a second low-pressure storage test pipeline 1002, a third low-pressure storage test pipeline 1003, a first vacuumizing pipeline 2001, a second vacuumizing pipeline 2002, a high-temperature air circulating air duct 201 and a low-temperature air circulating duct 301.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below 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.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
Referring to fig. 1 to 2, an embodiment of the invention provides a three-box low-pressure cold and hot impact box, which includes a pressure-bearing box body 1, where the pressure-bearing box body 1 may be an inner pressure-bearing box body or an outer pressure-bearing box body, a high-temperature chamber 2, a low-temperature chamber 3, and a test chamber 4 located between the high-temperature chamber 2 and the low-temperature chamber 3 are disposed inside the pressure-bearing box body 1, and a heater 25 and/or an evaporator 26 and a circulating fan 27 are disposed inside the high-temperature chamber 2 and the low-temperature chamber 3.
A high-temperature air circulation channel is arranged between the high-temperature chamber 2 and the test chamber 4 and used for heating and conveying the prepared high-temperature low-pressure gas into the test chamber 4 through the high-temperature air circulation channel;
a low-temperature air circulation channel is arranged between the low-temperature chamber 3 and the test chamber 4 and is used for refrigerating and conveying the prepared low-temperature low-pressure gas into the test chamber 4 through the low-temperature air circulation channel;
the test room 4 is used for carrying out low-pressure cold-hot impact test on a workpiece to be tested placed in the test room;
the pressure-bearing box body 1 is provided with at least a vacuum pump 5, a low-pressure pre-arranged tank 11, a pipeline connected with the high-temperature low-pressure test chamber 2 and the low-temperature low-pressure test chamber 3 and a valve on the pipeline;
at least one pressure relief control valve 14 is arranged on the pressure-bearing box body 1 or the pipeline connected with the pressure-bearing box body 1.
Preferably, the pressure-bearing box body 1 is provided with a first low-pressure storage test pipeline 1001 and/or a second low-pressure storage test pipeline 1002 and/or a third low-pressure storage test pipeline 1003 and/or a first vacuumizing pipeline 2001 and/or a second vacuumizing pipeline 2002 which are connected with a vacuum pump 5; wherein the first low-pressure storage test pipeline 1001 and/or the first evacuation pipeline 2001 are/is communicated with the high-temperature chamber 2, the second low-pressure storage test pipeline 1002 and/or the second evacuation pipeline 2002 are/is communicated with the low-temperature chamber 3, and the third low-pressure storage test pipeline is/are communicated with the test chamber 4;
the first vacuumizing pipeline 2001 is sequentially provided with a first one-way valve 6 and/or a first valve 7 along the direction from the vacuum pump 5 to the pressure-bearing box body 1;
the second vacuum pumping pipeline 2002 is sequentially provided with a second one-way valve 8 and/or a second valve 9 along the direction from the vacuum pump 5 to the pressure-bearing box body 1;
the first vacuumizing pipeline 2001 and/or the second low-pressure storage test pipeline 1002 and/or the third low-pressure storage test pipeline 1003 are/is sequentially provided with a third valve 10, a low-pressure preset tank 11 and a fourth valve 12 along the direction from the vacuum pump 5 to the pressure-bearing box body 1;
in this embodiment, the vacuum pump 5 is respectively connected to the first low-pressure storage test pipeline 1001 and/or the second low-pressure storage test pipeline 1002 and/or the third low-pressure storage test pipeline 1003 and/or the first vacuum pipeline 2001 and/or the second vacuum pipeline 2002 through a vacuum gas cooling device 13, and the service life of the vacuum pump 5 is ensured because the vacuum pipelines are unidirectionally cooled.
In the present embodiment, the high temperature air circulation passage includes a first sealing flap 17 and a second sealing flap 18;
the first sealing flap 17 and the second sealing flap 18 are each used to connect the high-temperature chamber 2 to the test chamber 4.
Preferably, the low-temperature air circulation channel comprises a third sealing turnover plate 19 and a fourth sealing turnover plate 20;
the third sealing flap 19 and the fourth sealing flap 20 are each used to connect the high-temperature chamber 2 to the test chamber 4.
In this embodiment, at least two flap actuators 21 are arranged outside the pressure-bearing box 1;
the flap actuator 21 is respectively connected with the first sealing flap 17, the second sealing flap 18, the third sealing flap 19 and the fourth sealing flap 20 through two sealing flap shafts 22 to control the opening and closing of the flaps.
Preferably, an outer pressure bearing cover 23 fixedly connected with the pressure bearing box body 1 is arranged outside the turning plate actuator 21;
a sealing ring 24 is arranged between the outer pressure bearing cover 23 and the pressure bearing box body 1, so that transmission and sealing performance between the pressure bearing box body 1 and the turnover plate actuator 21 can be guaranteed.
In the present embodiment, a heater 25, a heater 26, and a circulating fan 27 are provided inside each of the high-temperature chamber 2 and the low-temperature chamber 3, and the circulating fan 27 is provided inside the test chamber 4;
each circulating fan 27 is connected with a corresponding magnetic sealing motor 28 arranged outside the pressure-bearing box body 1, and is driven by the corresponding magnetic sealing motor 28.
It should be noted that the motors used in this embodiment are all low-pressure special motors, and have the characteristics of no air leakage and no electric leakage at low pressure.
Description of the principle:
before low-pressure cold and hot impact is carried out, a low-pressure preset tank 11 (the size of a required tank body can be calculated according to the ratio of an air pressure tank body) reaches a certain low-pressure value under the operation of a vacuum pump 5, when equipment operates to carry out cold and hot low-pressure impact test, a third valve 10 and a fourth valve 12 are closed, a first valve 7 and a second valve 9 are opened, the vacuum pump 5 reduces the pressure of an impact box to a certain pressure at a pressure reducing speed not lower than a standard value and stabilizes for a certain time, and a storage test is realized;
when the equipment runs to perform a cold and hot low-pressure impact test, the third valve 10 and the fourth valve 12 are opened, the first valve 7 and the second valve 9 are closed, the vacuum pump 5 performs vacuum pumping, and meanwhile, the vacuumizing gas cooling device 13 performs cooling treatment on the externally pumped gas to play a role in protecting the vacuum pump 5;
in a certain time, if high-temperature impact is performed, the first sealing turning plate 17 and the second sealing turning plate 18 are opened through the turning plate servo motor 21, so that thermal impact is realized; when cold impact is carried out, the first sealing turnover plate 17 and the second sealing turnover plate 18 are closed, and the third sealing turnover plate 19 and the fourth sealing turnover plate 20 are opened, so that cold impact is realized.
Before the above movement, the circulation fan 27 and the magnetic seal motor 28 are circulated, and the circulation direction is: the left side surface, the evaporator, the heater, the circulating fan and the test box ensure the temperature of each pressure-bearing box body.
The three-box low-air-pressure cold and hot impact box provided by the embodiment of the invention integrates the cold and hot low-air-pressure impact test function, enhances the practicability of the impact box, reduces the time for switching the cold and hot test environments, improves the working efficiency, brings great convenience to users, and is suitable for large-scale popularization and application.
The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and "comprising" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.
When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.
Claims (8)
1. The three-box low-pressure cold and hot impact box is characterized by comprising a pressure-bearing box body (1), wherein a high-temperature chamber (2), a low-temperature chamber (3) and a test room (4) positioned between the high-temperature chamber (2) and the low-temperature chamber (3) are arranged in the pressure-bearing box body (1), and a heater (25) and/or an evaporator (26) and a circulating fan (27) are arranged in the high-temperature chamber (2) and the low-temperature chamber (3);
a high-temperature air circulation channel (201) is arranged between the high-temperature chamber (2) and the test room (4), a low-temperature air circulation channel (301) is arranged between the low-temperature chamber (3) and the test room (4), and the test room (4) is used for performing low-pressure cold-hot impact test on a workpiece to be tested placed in the test room;
the pressure-bearing box body (1) is provided with at least a vacuum pump (5), a low-pressure pre-arranged tank (11), a pipeline connected with the high-temperature low-pressure test chamber (2) and the low-temperature low-pressure test chamber (3), and a valve on the pipeline;
at least one pressure relief control valve (14) is arranged on the pressure-bearing box body (1) or a pipeline connected with the pressure-bearing box body (1).
2. A cold-hot impact box with three boxes of low pressure according to claim 1, characterized in that the pressure-bearing box body (1) is provided with a first low pressure storage test pipeline (1001) and/or a second low pressure storage test pipeline (1002) and/or a third low pressure storage test pipeline (1003) and/or a first vacuumizing pipeline (2001) and/or a second vacuumizing pipeline (2002) which are connected with a vacuum pump (5); wherein the first low-pressure storage test pipeline (1001) and/or the first vacuumizing pipeline (2001) are/is communicated with the high-temperature chamber (2), the second low-pressure storage test pipeline (1002) and/or the second vacuumizing pipeline (2002) are/is communicated with the low-temperature chamber (3), and the third low-pressure storage test pipeline (1003) is communicated with the test chamber (4);
the first vacuum pumping pipeline (2001) is sequentially provided with a first one-way valve (6) and/or a first valve (7) along the direction from the vacuum pump (5) to the pressure-bearing box body (1);
the second vacuum pumping pipeline (2002) is sequentially provided with a second one-way valve (8) and/or a second valve (9) along the direction from the vacuum pump (5) to the pressure-bearing box body (1);
and the first low-pressure storage test pipeline (1001) and/or the second low-pressure storage test pipeline (1002) and/or the third low-pressure storage test pipeline (1003) are/is sequentially provided with a third valve (10), a low-pressure preset tank (11) and a fourth valve (12) along the direction from the vacuum pump (5) to the pressure-bearing box body (1).
3. A cold-hot impact box according to claim 2, characterised in that said vacuum pump (5) is connected to said first (1001) and/or second (1002) and/or third (1003) and/or first (2001) and/or second (2002) low-pressure storage test lines, respectively, through a vacuum gas cooling device (13).
4. A three-compartment low-pressure cold-hot impact compartment according to claim 1, characterised in that the high-temperature air circulation channel (201) comprises a first sealing flap (17) and a second sealing flap (18);
the first sealing flap (17) and the second sealing flap (18) are each used for connecting the high-temperature chamber (2) to the test chamber (4).
5. A three-compartment low-pressure cold-hot impact compartment according to claim 4, characterised in that the low-temperature air circulation channel (301) comprises a third sealing flap (19) and a fourth sealing flap (20);
the third sealing flap (19) and the fourth sealing flap (20) are used for communicating the high-temperature chamber (2) with the test chamber (4).
6. A three-box low-pressure cold and hot impact box as claimed in claim 5, characterized in that at least two flap actuators (21) are arranged outside the pressure-bearing box body (1);
the flap actuator (21) is respectively connected with the first sealing flap (17), the second sealing flap (18), the third sealing flap (19) and the fourth sealing flap (20) through two sealing flap shafts (22) to control the opening and closing of the flaps.
7. A three-box low-pressure cold and hot impact box as claimed in claim 6, wherein an outer pressure bearing cover (23) fixedly connected with the pressure bearing box body (1) is arranged outside the flap actuator (21);
and a sealing ring (24) is arranged between the outer pressure bearing cover (23) and the pressure bearing box body (1).
8. A three-compartment low-pressure cold-hot impact box according to claim 1, characterised in that the inside of said laboratory chamber (4) is provided with said circulating fan (27);
each circulating fan (27) is respectively connected with a corresponding magnetic sealing motor (28) arranged outside the pressure-bearing box body (1) and is driven by the corresponding magnetic sealing motor (28).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010524075.5A CN111537017A (en) | 2020-06-10 | 2020-06-10 | Three-box low-pressure cold and hot impact box |
| PCT/CN2020/118242 WO2021248745A1 (en) | 2020-06-10 | 2020-09-28 | Three-box low-air-pressure cold and hot impact box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010524075.5A CN111537017A (en) | 2020-06-10 | 2020-06-10 | Three-box low-pressure cold and hot impact box |
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| Publication Number | Publication Date |
|---|---|
| CN111537017A true CN111537017A (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010524075.5A Pending CN111537017A (en) | 2020-06-10 | 2020-06-10 | Three-box low-pressure cold and hot impact box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111537017A (en) |
| WO (1) | WO2021248745A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248745A1 (en) * | 2020-06-10 | 2021-12-16 | 东莞市升微机电设备科技有限公司 | Three-box low-air-pressure cold and hot impact box |
| CN115382585A (en) * | 2022-08-30 | 2022-11-25 | 合肥通用机械研究院有限公司 | Low-temperature vacuum composite experimental device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583043A (en) * | 2022-08-23 | 2024-02-23 | 江苏拓米洛高端装备股份有限公司 | Temperature test box |
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| JP4554437B2 (en) * | 2005-05-26 | 2010-09-29 | エスペック株式会社 | Thermal shock test equipment |
| CN100590434C (en) * | 2006-12-08 | 2010-02-17 | 北京航空航天大学 | Test apparatus of large-scaled environment simulation |
| CN102614944B (en) * | 2012-02-27 | 2014-03-12 | 华中科技大学 | Multifunctional environmental test box and environmental test method and use thereof |
| CN203811299U (en) * | 2014-04-30 | 2014-09-03 | 胡建军 | Device for precise temperature control, high and low temperature detection and service life test of thermosensitive element |
| CN109499627B (en) * | 2018-11-07 | 2020-12-11 | 广州国技试验仪器有限公司 | Four-comprehensive environment test device |
| CN111537017A (en) * | 2020-06-10 | 2020-08-14 | 东莞市升微机电设备科技有限公司 | Three-box low-pressure cold and hot impact box |
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2020
- 2020-06-10 CN CN202010524075.5A patent/CN111537017A/en active Pending
- 2020-09-28 WO PCT/CN2020/118242 patent/WO2021248745A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248745A1 (en) * | 2020-06-10 | 2021-12-16 | 东莞市升微机电设备科技有限公司 | Three-box low-air-pressure cold and hot impact box |
| CN115382585A (en) * | 2022-08-30 | 2022-11-25 | 合肥通用机械研究院有限公司 | Low-temperature vacuum composite experimental device |
| CN115382585B (en) * | 2022-08-30 | 2023-10-24 | 合肥通用机械研究院有限公司 | Low-temperature vacuum composite experimental device |
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| WO2021248745A1 (en) | 2021-12-16 |
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