CN103008033A - Chamber body structure of temperature control test chamber - Google Patents
Chamber body structure of temperature control test chamber Download PDFInfo
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- CN103008033A CN103008033A CN201210564107XA CN201210564107A CN103008033A CN 103008033 A CN103008033 A CN 103008033A CN 201210564107X A CN201210564107X A CN 201210564107XA CN 201210564107 A CN201210564107 A CN 201210564107A CN 103008033 A CN103008033 A CN 103008033A
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Abstract
The invention discloses a chamber body structure of a temperature control test chamber, which comprises a liner and a heat insulating layer, and is characterized in that a frame of a chamber body is divided into two separate frames, namely an inner frame and an outer frame; the inner frame is in multi-point rigid connection with the outer frame; and each rigid connection point takes a heat insulation cushion block made of a high heat resistance material as a bridge to realize fixed connection and heat insulation processing. As the liner is in rigid connection with the inner frame, metal stress deformation of the chamber body caused in a Halt or Hass test is avoided. As the inner frame and the outer frame form a double-layer truss structure, the rigidity of the chamber body is improved, so as to allow equipments such as a vibration test table, a heater, a humidifying and dehumidifying device, a circulation fan and a liquid nitrogen top-speed refrigerating device to be mounted in the liner. As the inner frame is in multi-point rigid heat insulation connection with the outer frame, heat transmission between the inner frame and the outer frame is obstructed, and heat losses of the chamber body are reduced.
Description
Technical field
The present invention relates to dynamic environmental test equipment, be specifically related to a kind of body structure of temperature control chamber.
Background technology
The temperature control chamber also claims sweat box, temperature control box or synthetic climate case etc. in dynamic environmental test equipment, be mainly used to the variation of simulated environment temperature, and be used in conjunction with vibration mechine, thereby be used for product is carried out temperature and vibration integrated dynamic environmental test.These tests all be for investigate electronic product in transportation, storage, use procedure because of vibration and variations in temperature on the impact of its generation.Wherein, Highly Accelerated Life Test (hereinafter to be referred as Halt) is used for investigating the design defective of product, and highly accelerated stress screen test (hereinafter to be referred as Hass) is used for investigating the manufacturing defective of product.
The Halt/Hass test method is to propose when lecturing " triage techniques " course by the Gregg K doctor Hobbs research of U.S. Hobbs engineering company and in 1988.Begin the application that puts it over of Halt and Hass test method from the nineties.Different from traditional reliability test, the purpose of Halt test is to excite fault, namely the potential defective of product is excited into observable fault.Therefore, it is not the test of adopting general simulating practical service environment to carry out, but the people testing fast, finds out the working limit of product even the damage limit that finally reaches for applying stepstress under the limit stress of technical conditions regulation.Then, work out the Hass scheme according to the limit that Halt determines, reject by Hass and manufacture defective, make product reach fast high reliability.
Halt/Hass pilot system equipment must comprise and satisfy following humid test and two basic capacities of vibration test that require, and the composite test that can carry out simultaneously temperature and vibration.
1. vibration test technical parameter
(1) repeated impacts vibrating function and the accurate random vibration function of 6DOF (three axial six-freedom degrees);
(2) vibrational energy bandwidth: the 10Hz～10000Hz that can distribute;
(3) maximum vibration of table top output magnitude is not less than the not loading of 50Grms(table top).
2. humid test parameter
Humid test is for product is carried out fast change of temperature test, and this just requires the air circulation system of Halt testing equipment can produce enough large wind speed, reach product fast temperature become effect and keep temperature stabilization.The device temperature test parameters requires as follows:
(1) quick temperature change ability (maximum temperature variable Rate be not less than 60 ℃/min);
(2) range of temperature :-100 ℃～+ 200 ℃.
3. the difference of the temperature control chamber that the temperature control chamber of using when Halt/Hass tests and traditional reliability test are used has:
(1) in traditional reliability test, vibration source is located at the below of temperature control chamber usually, is Split type structure between the two; And Halt/Hass when test vibration mechine is arranged on the box house of temperature control chamber mostly, and both are integrated syndeton;
(2) the maximum temperature variable Rate of traditional reliability test 〉=5 ℃/min; And the maximum temperature variable Rate in Halt/Hass when test temperature control chamber 〉=60 ℃/min;
The temperature control chamber must have wider temperature range (100 ℃～+ 200 ℃) when (3) Halt/Hass tested.
Can find out from above-mentioned parameter, the Halt/Hass test compares temperature control test box body structural strength with traditional reliability test and thermal and insulating performance requires higher.
The Halt/Hass that Fig. 1 makes for the traditional temperature control chamber technology of employing tests the temperature control chamber structural representation of usefulness.As can be seen from Figure 1, the temperature control chamber of using among the Halt/Hass at present, mainly formed by casing and the vibration mechine 8 that is installed in box house, wherein, casing is comprised of inner bag 1, shell 2 and thermal insulation layer 3, and shell 2 constructs the first box-shaped space, inner bag 1 constructs the second box-shaped space, inner bag 1 is positioned at outside framework 2, and inner bag 1 is made by sheet material, is provided with the thermal insulation layer 3 of being made by heat preserving and insulating material between inner bag 1 and the shell 2.Existing temperature control chamber is in being engaged in the Halt/Hass test, because vibration mechine 8 and test article all are carried on the inner bag 1 of casing, inner bag 1 distortion easily occur and sink the thermal insulation layer 3 of destruction casing, thereby cause the heat-insulating property of casing to descend, even destroy.Therefore for the requirement of Halt/Hass test to the temperature control chamber, in the design of temperature control chamber, how improving bulk strength and the rigidity of casing, improve simultaneously the thermal and insulating performance of casing, is the problem that the present invention studies to satisfy the needs such as Halt/Hass test.
Summary of the invention
The invention provides a kind of temperature control test box body structure, its objective is casing existing problem aspect rigidity, intensity and thermal and insulating performance that will solve existing temperature control chamber.
For achieving the above object, the technical solution used in the present invention is: a kind of temperature control test box body structure, comprise inner bag and thermal insulation layer, inner bag becomes a box structure by board material splice, at the peripheral of inner bag and be close to inner bag an inner frame is set, inner bag is fixedly connected with inner frame, and this inner frame is a built-in box-shaped skeleton that is built into take rod member as keel; At the peripheral of inner frame and apart from inner frame an outside framework is set, this outside framework is an external box-shaped skeleton that is built into take rod member as keel, all carrying out heat-insulating type by 3 at least between inner frame and the outside framework on each side that needs are connected is fixedly connected with, it is with the stiff points syndeton of heat-insulating cushion block as bridge that described heat-insulating type is fixedly connected with, one end of heat-insulating cushion block is fixedly connected with inner frame, the other end is fixedly connected with outside framework, forms inside and outside double-deck truss structure with this; Described thermal insulation layer is located in the space between inner frame and the outside framework.
Related content in above-mentioned the first technical scheme is explained as follows:
1. in the such scheme, described inner bag becomes " box structure " in the box structure to refer to two kinds of situations by board material splice, and the first is that the leading flank of inner bag is open, and upper and lower, left and right and trailing flank are formed by board material splice; The second is that the leading flank of inner bag and trailing flank are open simultaneously, and upper and lower a, left side and right flank are formed by board material splice.In like manner, the corresponding inner bag of inner frame and outside framework also has two kinds of situations, and the first is that leading flank is open, and the second is that leading flank and trailing flank are open simultaneously.When the leading flank of inner bag, inner frame and outside framework was open, the casing of temperature control chamber was equipped with the Qianmen, and when leading flank and trailing flank were open simultaneously, casing was equipped with Qianmen and back door simultaneously.
2. in the such scheme, for being overlapped easily, inner frame installs in the outside framework, the medial surface of described outside framework is provided with gathering sill, and the gathering sill direction arranges along the direction of inner frame and outside framework suit, and position that should gathering sill is provided with heat-insulating cushion block in the relevant position in the inner frame outside.
3. in the such scheme, can directly be fixedly connected with bolt between described heat-insulating cushion block and inner frame or the outside framework, also can be fixedly connected with bolt again by support.
Design principle of the present invention and design are: for the casing that solves existing temperature control chamber in existing problem aspect rigidity, intensity and the thermal and insulating performance, the present invention is divided into inside and outside two frameworks independently with the framework of casing, adopt multiple spot to be rigidly connected between inner frame and the outside framework, the adiabatic cushion block that each rigid connecting contact adopts high thermal resistance material to make achieves a fixed connection and heat insulation processing simultaneously as bridge.Inner bag and inner frame are rigidly connected, when carrying out Halt or Hass test to stop casing and the metal stresses distortion that causes.Inner frame and outside framework form double-deck truss structure, have increased the rigidity of casing, to be suitable at the inner equipment such as vibration mechine, heater, humidification dehydrating unit, circulating fan and the very fast refrigerating plant of liquid nitrogen of installing of inner bag.Adopt the heat insulation heat transmission that is connected to intercept between the inside and outside framework of multiple spot rigidity between inner frame and the outside framework, reduce the casing thermal losses.
Because the utilization of technique scheme, the present invention compared with prior art has following advantages and effect:
1. the present invention is simple in structure, be skillfully constructed, especially casing is divided into inside and outside two frame structures independently, and adopt heat-insulating cushion block in the mode that multiple spot connects inner frame and outside framework to be built into double-deck truss structure, thereby greatly improved the integral rigidity of temperature control test box body structure, reduce simultaneously the thermal losses of temperature control test box body, improved heat insulating effect, can satisfy the specification requirement of Halt/Hass test.
2. the inner frame of temperature control test box body of the present invention and outside framework can independent processings, then adopt the multiple spot mode that is rigidly connected finally to assemble, and such design has reduced production difficulty, convenient at stuffed heat insulated layer between the interlayer inside and outside the casing.
Adopt isolating construction (inner bag framework, outer container framework are processed separately) when inner bag framework and the processing of outer container framework, the inner bag framework can easily push in the outer container framework by the guide rail that designs on the outer container framework and finish assembling.The present invention has overcome the body structure distortion that the Halt/Hass chamber causes when carrying out large temperature change test, effectively reduce simultaneously the hot slippages between the inside and outside framework; The frame structure of separate type has improved Halt/Hass chamber production efficiency, reduces cost of labor.
Description of drawings
The Halt/Hass that accompanying drawing 1 is made for the traditional temperature control chamber technology of employing tests the temperature control chamber structural representation of usefulness;
Accompanying drawing 2 is temperature control chamber structural representation of the present invention;
Accompanying drawing 3 is the stereogram of body structure embodiment of the present invention;
Accompanying drawing 4 is the stereogram of inner bag embodiment in the body structure of the present invention;
Accompanying drawing 5 is inner frame in the body structure of the present invention and outside framework assembling schematic diagram;
Accompanying drawing 6 is fixedly connected with schematic diagram for the first heat-insulating type that adopts in the body structure of the present invention;
Accompanying drawing 7 is fixedly connected with schematic diagram for the second heat-insulating type that adopts in the body structure of the present invention.
In the above accompanying drawing: 1. inner bag; 2. shell; 3. thermal insulation layer; 4. inner frame; 5. outside framework; 6. interior heat-insulating bracket; 7. outer heat-insulating bracket; 8. heat-insulating cushion block; 9. vibration mechine; 10. gathering sill; 11. upper plate; 12. lower shoe; 13. left plate; 14. right plate; 15. the first main joist; 16. the second main joist; 17. the 3rd main joist; 18. the first false keel; 19. the second false keel; 20. fan bearing fixed head; 21. humidification dehumidifying jet pipe fixed head; 22. heater fixed head; 23. liquid nitrogen jet pipe fixed head; 24. vibration mechine fixed head; 25. the 4th main joist; 26. the 5th main joist; 27. the 6th main joist; 28. the 3rd false keel; 29. fourth officer keel; 30. the 5th false keel; 31. blower fan fixed head.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment: a kind of temperature control test box body structure
Shown in Fig. 2 ~ 7, this body structure mainly forms (see figure 2) by inner bag 1, inner frame 4, outside framework 5 and thermal insulation layer 3.Inner bag 1 becomes a box structure by board material splice, this box structure consists of (see figure 4) by upper plate 11, lower shoe 12, left plate 13 and 14 4 stainless steel materials of right plate (SUS304) by welding, and the leading flank of inner bag 1 and trailing flank are open for uncovered simultaneously.
At the peripheral of inner bag 1 and be close to inner bag 1 inner frame 4 is set, inner bag 1 adopts the screw lock mode to be fixedly connected with inner frame 4, and this inner frame 4 is built-in box-shaped skeletons that are built into take rod member as keel.As shown in Figure 5, the main body of this built-in box-shaped skeleton is made of four the first main joists 15 of lateral arrangement, four the second main joists 16 vertically arranging and 17 welding of vertical four of arranging the 3rd main joist.In order to increase the rigidity of inner frame 4, be respectively equipped with two the first false keels 18 at top and bottom, be respectively equipped with two the second false keels 19 at two sidepieces.For the ease of install miscellaneous equipment (such as, the equipment such as vibration mechine, heater, humidification dehydrating unit, circulating fan and the very fast refrigerating plant of liquid nitrogen) strengthen simultaneously rigidity, also be provided with some complementary stiffeners, such as be provided with fan bearing fixed head 20, humidification dehumidifying jet pipe fixed head 21, heater fixed head 22, liquid nitrogen jet pipe fixed head 23 at the top, be provided with vibration mechine fixed head 24 etc. at sidepiece.These fixed heads all are welded as a whole with the main body of inner frame 4.
At the peripheral of inner frame 4 and apart from inner frame 4 outside framework 5 is set, this outside framework 5 is external box-shaped skeletons that are built into take rod member as keel.As shown in Figure 5, the main body of this external box-shaped skeleton is made of four the 4th main joists 25, the 5th main joist 26 and 27 welding of the 6th main joist of lateral arrangement.In order to increase the rigidity of outside framework 5, be respectively equipped with two the 3rd false keels 28 at top and bottom, be respectively equipped with two fourth officer keel 29 at two sidepieces, also be provided with two the 5th false keels 30 in the bottom.For the ease of blower fan is installed, be provided with blower fan fixed head 31 at the top.
All carrying out heat-insulating type by 3 at least between inner frame 4 and the outside framework 5 on each side that needs are connected is fixedly connected with.In the present embodiment, because leading flank and the trailing flank of inner frame 4 and outside framework 5 are open open design, the side that needs to be connected between inner frame 4 and the outside framework 5 is these four faces of end face, bottom surface, left surface and right flank.It is that one end of heat-insulating cushion block 8 is fixedly connected with inner frame 4 with the stiff points syndeton of heat-insulating cushion block 8 as bridge that described heat-insulating type is fixedly connected with, and the other end is fixedly connected with outside framework 5, forms inside and outside double-deck truss structure with this.Heat-insulating type is fixedly connected with and can adopts one of two kinds of forms, Figure 6 shows that the first form, Figure 7 shows that the second form.In the first form, heat-insulating cushion block 8 directly is fixedly connected on (see figure 6) between inner frame 4 and the outside framework 5.In the second form, an end of heat-insulating cushion block 8 is fixedly connected with inner frame 4 by interior heat-insulating bracket 6, and the other end is fixedly connected with outside framework 5 by outer heat-insulating bracket 7.Described thermal insulation layer 3 is located in the space between inner frame 4 and the outside framework 5.
Install in the outside framework for inner frame is overlapped easily, the medial surface of described outside framework 5 is provided with gathering sill 10, and gathering sill 10 directions are arranged along inner frame 4 and the direction of outside framework 5 suits.Be provided with in the present embodiment four gathering sills 10, these four gathering sills are distributed in four bight (see figure 5)s of outside framework 5.Position that should gathering sill 10 is provided with heat-insulating cushion block 8 in the relevant position in inner frame 4 outsides.
In a word, body structure of the present invention mainly is comprised of inner bag 1, inner frame 4, outside framework 5 and thermal insulation layer 3.Inner bag 1 is installed in inner frame 4 inside in the mode of being rigidly connected, inner frame 4 enters outside framework 5 inside by gathering sill 10, outside framework 5 is mounted with in the mode that stiff points is connected by heat-insulating cushion block 8 with inner frame 4, is provided with thermal insulation layer 3 between inner frame 4 and the outside framework 5.During making, then processing outside framework 5 and inner frame 4 with inner bag 1 and the rear fixing and locking of inner frame 4 assemblings, are installed to heat-insulating cushion block 8 on the inner frame 4 separately, then push outside framework 5 in and locking by gathering sill 10 inner frame 4 that assembles, form double-deck truss structure.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. temperature control test box body structure, comprise inner bag (1) and thermal insulation layer (3), inner bag (1) becomes a box structure by board material splice, it is characterized in that: at the peripheral of inner bag (1) and be close to inner bag (1) inner frame (4) is set, inner bag (1) is fixedly connected with inner frame (4), and this inner frame (4) is a built-in box-shaped skeleton that is built into take rod member as keel; At the peripheral of inner frame (4) and apart from inner frame (4) outside framework (5) is set, this outside framework (5) is an external box-shaped skeleton that is built into take rod member as keel, all carrying out heat-insulating type by 3 at least between inner frame (4) and the outside framework (5) on each side that needs are connected is fixedly connected with, it is with the stiff points syndeton of heat-insulating cushion block (8) as bridge that described heat-insulating type is fixedly connected with, one end of heat-insulating cushion block (8) is fixedly connected with inner frame (4), the other end is fixedly connected with outside framework (5), forms inside and outside double-deck truss structure with this; Described thermal insulation layer (3) is located in the space between inner frame (4) and the outside framework (5).
2. temperature control test box body structure according to claim 1, it is characterized in that: the medial surface of described outside framework (5) is provided with gathering sill (10), gathering sill (10) direction arranges along the direction of inner frame (4) and outside framework (5) suit, and position that should gathering sill (10) is provided with heat-insulating cushion block (8) in the relevant position in inner frame (4) outside.
3. temperature control test box body structure according to claim 1 is characterized in that: be fixedly connected with by support between described heat-insulating cushion block (8) and inner frame (4) or the outside framework (5).
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| CN201210564107.XA CN103008033B (en) | 2012-12-24 | 2012-12-24 | Chamber body structure of temperature control test chamber |
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| CN201210564107.XA CN103008033B (en) | 2012-12-24 | 2012-12-24 | Chamber body structure of temperature control test chamber |
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| CN103008033B CN103008033B (en) | 2014-12-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107731A (en) * | 2014-08-04 | 2014-10-22 | 广州赛宝计量检测中心服务有限公司 | Constant-temperature temperature test box heated by liquid |
| CN104525283A (en) * | 2014-12-31 | 2015-04-22 | 芜湖赛宝信息产业技术研究院有限公司 | Test chamber with reliability enhancement test function in ultra-high temperature microenvironment and test method thereof |
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| GB1059907A (en) * | 1964-09-08 | 1967-02-22 | Instron Corp | Environmental test chambers |
| CN101038235A (en) * | 2007-03-27 | 2007-09-19 | 顾韻 | High acceleration temperature changing test chamber |
| CN101462084A (en) * | 2007-12-19 | 2009-06-24 | 吴海林 | test chamber |
| CN201505531U (en) * | 2009-08-24 | 2010-06-16 | 上汽通用五菱汽车股份有限公司 | Environmental test chamber provided with metal framework |
| CN203030289U (en) * | 2012-12-24 | 2013-07-03 | 苏州苏试试验仪器股份有限公司 | Box body structure of temperature control test box |
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2012
- 2012-12-24 CN CN201210564107.XA patent/CN103008033B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1059907A (en) * | 1964-09-08 | 1967-02-22 | Instron Corp | Environmental test chambers |
| CN101038235A (en) * | 2007-03-27 | 2007-09-19 | 顾韻 | High acceleration temperature changing test chamber |
| CN101462084A (en) * | 2007-12-19 | 2009-06-24 | 吴海林 | test chamber |
| CN201505531U (en) * | 2009-08-24 | 2010-06-16 | 上汽通用五菱汽车股份有限公司 | Environmental test chamber provided with metal framework |
| CN203030289U (en) * | 2012-12-24 | 2013-07-03 | 苏州苏试试验仪器股份有限公司 | Box body structure of temperature control test box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107731A (en) * | 2014-08-04 | 2014-10-22 | 广州赛宝计量检测中心服务有限公司 | Constant-temperature temperature test box heated by liquid |
| CN104525283A (en) * | 2014-12-31 | 2015-04-22 | 芜湖赛宝信息产业技术研究院有限公司 | Test chamber with reliability enhancement test function in ultra-high temperature microenvironment and test method thereof |
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Address after: 215122 Suzhou City Industrial Park, Suzhou science and Technology Park in the new city, the town of Ting Ting Feng Road, No. 18 Patentee after: Suzhou Su test group Limited by Share Ltd Address before: 215122 Suzhou City Industrial Park, Suzhou science and Technology Park in the new city, the town of Ting Ting Feng Road, No. 18 Patentee before: Suzhou Sushi Testing Instrument Co.,Ltd. |
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