CN103816948A - Constant-temperature and constant-humidity test machine - Google Patents
Constant-temperature and constant-humidity test machine Download PDFInfo
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- CN103816948A CN103816948A CN201410047961.8A CN201410047961A CN103816948A CN 103816948 A CN103816948 A CN 103816948A CN 201410047961 A CN201410047961 A CN 201410047961A CN 103816948 A CN103816948 A CN 103816948A
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Abstract
The invention discloses a constant-temperature and constant-humidity test machine. The constant-temperature and constant-humidity test machine comprises a test machine casing, wherein a test box is arranged in the test machine casing, the test box comprises a box body and a test chamber which is arranged in the box body, a circulating air duct is formed between the box body and the test chamber, the circulating air duct is communicated with the test chamber, gas uniform distribution devices are respectively arranged at an air inlet and an air outlet of the circulating air duct, each gas uniform distribution device comprises a first meshed plate and a second meshed plate which are sequentially arranged towards the interior of the circulating air duct, a plurality of mesh holes are respectively formed in the first meshed plate and the second meshed plate, and the hole diameters of the mesh holes of the second meshed plate are sequentially reduced from the upper part to the lower part, or the number of the mesh holes of the second meshed plate is sequentially reduced from the upper part to the lower part. The flow speed of gas from the upper part to the lower part can be controlled through the first meshed plate and the second meshed plate so as to ensure uniform gas flow in the test chamber and avoid air flow turbulence phenomena. As a result, the constant-temperature and constant-humidity test machine can meet the requirement of low-flow rate tests.
Description
Technical field
The present invention relates to the technical field of experimental rig, more particularly, relate to a kind of constant temperature and moisture test machine.
Background technology
Constant temperature and moisture test machine be a kind of under the state of a certain constant temperature and humidity the performance to product detect, whether reach the equipment of the requirement of relevant criterion to detect the performance of this product.
The enclosure of existing constant temperature and moisture test machine is generally equiped with chamber, chamber comprises casing and is arranged on the experimental cabin of box house, between casing and experimental cabin, be formed with circulation air path, circulation air path is communicated with experimental cabin, and the inside of circulation air path is equiped with evaporimeter, heater, humidifier and circulating fan.When work, under the effect of circulating fan, gas can flow between experimental cabin and circulation air path, but, in the flow process of gas, can there is sinkage in most of gas, is gathered in the flows of circulation air path, in the time that gas returns to experimental cabin, the gas flow rate of experimental cabin bottom can be larger, and air turbulence phenomenon easily occurs, and makes constant temperature and moisture test machine cannot meet low flow velocity test request.
Summary of the invention
The object of the invention is to overcome above-mentioned defect of the prior art, provide a kind of gas flow evenly, can prevent air turbulence and can meet the constant temperature and moisture test machine of low flow velocity test request.
For achieving the above object, technical scheme provided by the invention is as follows: a kind of constant temperature and moisture test machine, comprise testing machine shell, the inside of described testing machine shell is equiped with chamber, described chamber comprises casing and is arranged on the experimental cabin of described box house, between described casing and described experimental cabin, be formed with circulation air path, described circulation air path is communicated with described experimental cabin, the inside of described circulation air path is equiped with evaporimeter, heater, humidifier and circulating fan, the air inlet of described circulation air path and air outlet are equiped with respectively air uniform distribution device, described air uniform distribution device comprises the first web plate and the second web plate that set gradually toward the internal direction of described circulation air path, described the first web plate and described the second web plate offer respectively several mesh, the aperture of the mesh of described the second web plate reduces from top to bottom successively or the quantity of the mesh of described the second web plate reduces from top to bottom successively.
As preferably, in technique scheme, described the second web plate is at the air inlet of described circulation air path and air outlet be arranged in parallel with corresponding the first web plate respectively or described the second web plate be arranged in parallel at air inlet and corresponding first web plate of described circulation air path, and in air outlet and the corresponding first inclined meshed plate setting of described circulation air path, described the second web plate tilts to the right of the air outlet away from described circulation air path from the left side of the air outlet of described circulation air path.
As preferably, in technique scheme, described the second web plate comprises the first web plate unit, the second web plate unit and the 3rd web plate unit that set gradually from top to bottom, the aperture of the mesh of described the first web plate unit is greater than the aperture of the mesh of described the second web plate unit, and the aperture of the mesh of described the second web plate unit is greater than the aperture of the mesh of described the 3rd outer web plate unit.
As preferably, in technique scheme, the mesh of described the first web plate unit, described the second web plate unit and described the 3rd web plate unit is evenly distributed respectively, and the aperture of the mesh of described the first web plate unit is 3～3.5mm.The aperture of the mesh of described the second web plate unit is 2～2.5mm, and the aperture of the mesh of described the 3rd web plate unit is 1～1.5mm.
As preferably, in technique scheme, described the second web plate comprises the first web plate unit, the second web plate unit and the 3rd web plate unit that set gradually from top to bottom, the quantity of the mesh of described the first web plate unit is more than the aperture of the quantity of described the second web plate unit, and the quantity of the mesh of described the second web plate unit is more than the quantity of the mesh of described the 3rd outer web plate unit.
As preferably, in technique scheme, the pore size of the mesh of described the first web plate is identical and evenly distributed.
As preferably, in technique scheme, the inside of described circulation air path is equiped with airdraft plate and air dispersion plate.
As preferably, in technique scheme, the inside of described circulation air path is equiped with wind cutting plate and is positioned at the bight wind deflector of casing edge.
As preferably, in technique scheme, the inside of described chamber is equiped with dismountable sample swinging mounting, and described sample swinging mounting is in transmission connection by transmission device and the buncher that is installed in described testing machine enclosure.
As preferably, in technique scheme, described sample swinging mounting comprises rotating shaft, top chock, step, travelling gear is fixed on the rotating disk in described rotating shaft with at least one by rotating disk holder, described top chock is installed in the upper end of described rotating shaft and is fixed on the top of described casing, described step is installed in the lower end of described rotating shaft and is fixed on the bottom of described casing, described travelling gear is positioned at the below of described step, described travelling gear and described transmission device are in transmission connection, described transmission device comprises driving-belt, shaft coupling, gear or speed changer.
Compared with prior art, beneficial effect of the present invention is:
The present invention is equiped with respectively air uniform distribution device at air inlet and the air outlet of circulation air path, air uniform distribution device comprises the first web plate and the second web plate that set gradually toward the internal direction of described circulation air path, the first web plate and the second web plate offer respectively several mesh, the aperture of the mesh of the second web plate reduces from top to bottom successively or the quantity of the mesh of the second web plate reduces from top to bottom successively, when gas flow is during through the first web plate and the second web plate, the first web plate and the second web plate can be controlled gas flow velocity from top to bottom, make the gas flow in experimental cabin even, avoid the generation of air turbulence phenomenon, make constant temperature and moisture test machine can meet low flow velocity test request.
Accompanying drawing explanation
Fig. 1 is the structural representation of constant temperature and moisture test machine of the present invention;
Fig. 2 is the cutaway view of constant temperature and moisture test machine of the present invention;
Fig. 3 is the structural representation of chamber of the present invention;
Fig. 4 is the internal structure top view of chamber of the present invention;
Fig. 5 is the structural representation of the second web plate of the present invention;
Fig. 6 is the structural representation of the first web plate of the present invention;
Fig. 7 is sample swinging mounting structural representation of the present invention;
Fig. 8 is the internal structure top view of another kind of chamber of the present invention;
Fig. 9 is the structural representation of another kind of the second web plate of the present invention.
Below in conjunction with drawings and Examples, constant temperature and moisture test machine of the present invention is described further.
The specific embodiment
Be below the preferred example of constant temperature and moisture test machine of the present invention, therefore do not limit protection scope of the present invention.
Embodiment mono-
Please refer to Fig. 1 to Fig. 7, there is shown a kind of constant temperature and moisture test machine, comprise testing machine shell 1, the inside of testing machine shell 1 is equiped with chamber 2, chamber 2 comprises casing 21 and is arranged on the experimental cabin 22 of casing 21 inside, between casing 21 and experimental cabin 22, be formed with circulation air path 23, circulation air path 23 is communicated with experimental cabin 22, the inside of circulation air path 23 is equiped with evaporimeter 3, heater 4, humidifier 5 and circulating fan 6, the air inlet of circulation air path 23 and air outlet are equiped with respectively air uniform distribution device 7, air uniform distribution device 7 comprises the first web plate 71 and the second web plate 72 that set gradually toward the internal direction of circulation air path 23, the first web plate 71 and the second web plate 72 offer respectively several mesh, the aperture of the mesh of the second web plate 72 reduces from top to bottom successively.
Wherein, the second web plate 72 be arranged in parallel with corresponding the first web plate 71 respectively at air inlet and the air outlet of circulation air path 23.Or, as shown in Figure 8, the second web plate 72 be arranged in parallel at air inlet and corresponding first web plate 71 of circulation air path 23, and air outlet and corresponding the first web plate 71 at circulation air path 23 are obliquely installed, the second web plate 72 tilts to the right of the air outlet away from circulation air path 23 from the left side of the air outlet of circulation air path 23.
As shown in Figure 5, in the present embodiment, the second web plate 72 comprises the first web plate unit 721, the second web plate unit 722 and the 3rd web plate unit 723 that set gradually from top to bottom.Wherein, the first web plate unit 721, the second web plate unit 722 and the 3rd web plate unit 723 structure that is formed in one, the mesh of the first web plate unit 721, the second web plate unit 722 and the 3rd web plate unit 723 is evenly distributed respectively, the aperture of the mesh of the first web plate unit 721 is greater than the aperture of the mesh of the second web plate unit 722, and the aperture of the mesh of the second web plate unit 722 is greater than the aperture of the mesh of the 3rd outer web plate unit 723.
Furthermore, the aperture of the mesh of the first web plate unit 721 is 3～3.5mm, the aperture of the mesh of the second web plate unit 722 is 2～2.5mm, the aperture of the mesh of the 3rd web plate unit 723 is 1～1.5mm, as embodiment preferably, the aperture of the mesh of the first web plate unit 721 is 3mm, and the aperture of the mesh of the second web plate unit 722 is 2mm, and the aperture of the mesh of the 3rd web plate unit 723 is 1.5mm.
As embodiment preferably, the pore size of the mesh of the first web plate 71 is identical and evenly distributed, can make like this flowing of gas more even.
As a further improvement on the present invention, the inside of circulation air path 23 is equiped with airdraft plate 8 and air dispersion plate 9, and wherein, airdraft plate 8 can make flowing of gas more smooth and easy, and air dispersion plate 9 can make flowing of gas more even.
As a further improvement on the present invention, the inside of circulation air path 23 is equiped with wind cutting plate 10 and is positioned at the bight wind deflector 11 of casing 21 edges, wherein, wind cutting plate 10 is obliquely installed, the curved structure of bight wind deflector 11, wind cutting plate 10 and wind deflector 11 can lead to gas, make flowing of gas more smooth and easy.
As shown in Figure 2 and Figure 7, the inside of chamber 2 is equiped with dismountable sample swinging mounting 12, sample swinging mounting 12 is in transmission connection by transmission device 13 and the buncher 14 that is installed in testing machine shell 1 inside, transmission device 13 can be in driving-belt, shaft coupling, gear or speed changer any one.
Particularly, sample swinging mounting 12 comprises that rotating shaft 121, top chock 122, step 123, travelling gear 124 and at least one are fixed on the rotating disk 126 in rotating shaft 121 by rotating disk holder 125, top chock 122 is installed in the upper end of rotating shaft 121 and is fixed on the top of casing 21, step 123 is installed in the lower end of rotating shaft 121 and is fixed on the bottom of casing 21, travelling gear 124 is positioned at the below of step 123, and travelling gear 124 is in transmission connection with transmission device 13.In the present embodiment, the quantity of rotating disk 126 is preferably set to two, and rotating disk holder 125 can regulate two spacing between rotating disk 126.It should be noted that at this, also can change according to actual needs the quantity of rotating disk 126, non-enforcement is limited.
Embodiment bis-
Enforcement two of the present invention provides a kind of constant temperature and moisture test machine, and its structure is identical with the structure major part of above-mentioned enforcement one, does not repeat them here, and its difference is: the quantity of the mesh of the second web plate 72 reduces from top to bottom successively.As shown in Figure 9, in the present embodiment, the second web plate 72 comprises the first web plate unit 721, the second web plate unit 722 and the 3rd web plate unit 723 that set gradually from top to bottom.Wherein, the first web plate unit 721, the second web plate unit 722 and the 3rd web plate unit 723 structure that is formed in one, the quantity of the mesh of the first web plate unit 721 is more than the aperture of the quantity of the second web plate unit 722, and the quantity of the mesh of the second web plate unit 722 is more than the quantity of the mesh of the 3rd outer web plate unit 723, preferably, the first web plate unit 721, the second web plate unit 722 are identical with the pore size of the mesh of the 3rd web plate unit 723.
In sum, when work, gas under the effect of circulating fan 6 in experimental cabin 22 enters the inside of circulation air path 23 from the air inlet of circulation air path 23, return to experimental cabin 22 from the air outlet of circulation air path 23 again, gas at the air inlet of circulation air path 23 successively through the first web plate 71 and the second web plate 72, gas at the air outlet of circulation air path 23 successively through the second web plate 72 and the first web plate 71, when gas flow is during through the first web plate 71 and the second web plate 72, the first web plate 71 and the second web plate 72 can be controlled gas flow velocity from top to bottom, make the gas flow in experimental cabin 22 even, avoid the generation of air turbulence phenomenon, make constant temperature and moisture test machine can meet low flow velocity test request, in enforcement of the present invention, the mean flow rate of gas can be controlled at 0.03～0.3m/s.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. a constant temperature and moisture test machine, comprise testing machine shell (1), the inside of described testing machine shell (1) is equiped with chamber (2), described chamber (2) comprises casing (21) and is arranged on the inner experimental cabin (22) of described casing (21), between described casing (21) and described experimental cabin (22), be formed with circulation air path (23), described circulation air path (23) is communicated with described experimental cabin (22), the inside of described circulation air path (23) is equiped with evaporimeter (3), heater (4), humidifier (5) and circulating fan (6), it is characterized in that: the air inlet of described circulation air path (23) and air outlet are equiped with respectively air uniform distribution device (7), described air uniform distribution device (7) comprises the first web plate (71) and the second web plate (72) that set gradually toward the internal direction of described circulation air path (23), described the first web plate (71) and described the second web plate (72) offer respectively several mesh, the aperture of the mesh of described the second web plate (72) reduces from top to bottom successively or the quantity of the mesh of described the second web plate (72) reduces from top to bottom successively.
2. constant temperature and moisture test machine according to claim 1, it is characterized in that: described the second web plate (72) is at the air inlet of described circulation air path (23) and air outlet be arranged in parallel with corresponding the first web plate (71) respectively or described the second web plate (72) is obliquely installed at air outlet and corresponding first web plate (71) of described circulation air path (23), described the second web plate (72) tilts to the right of the air outlet away from described circulation air path (23) from the left side of the air outlet of described circulation air path (23).
3. constant temperature and moisture test machine according to claim 1, it is characterized in that: described the second web plate (72) comprises the first web plate unit (721), the second web plate unit (722) and the 3rd web plate unit (723) that set gradually from top to bottom, the aperture of the mesh of described the first web plate unit (721) is greater than the aperture of the mesh of described the second web plate unit (722), and the aperture of the mesh of described the second web plate unit (722) is greater than the aperture of the mesh of described the 3rd outer web plate unit (723).
4. constant temperature and moisture test machine according to claim 3, it is characterized in that: the mesh of described the first web plate unit (721), described the second web plate unit (722) and described the 3rd web plate unit (723) is evenly distributed respectively, and the aperture of the mesh of described the first web plate unit (721) is 3～3.5mm.The aperture of the mesh of described the second web plate unit (722) is 2～2.5mm, and the aperture of the mesh of described the 3rd web plate unit (723) is 1～1.5mm.
5. constant temperature and moisture test machine according to claim 1, it is characterized in that: described the second web plate (72) comprises the first web plate unit (721), the second web plate unit (722) and the 3rd web plate unit (723) that set gradually from top to bottom, the quantity of the mesh of described the first web plate unit (721) is more than the aperture of the quantity of described the second web plate unit (722), and the quantity of the mesh of described the second web plate unit (722) is more than the quantity of the mesh of described the 3rd outer web plate unit (723).
6. constant temperature and moisture test machine according to claim 1, is characterized in that: the pore size of the mesh of described the first web plate (71) is identical and evenly distributed.
7. constant temperature and moisture test machine according to claim 1, is characterized in that: the inside of described circulation air path (23) is equiped with airdraft plate (8) and air dispersion plate (9).
8. constant temperature and moisture test machine according to claim 1, is characterized in that: the inside of described circulation air path (23) is equiped with wind cutting plate (10) and is positioned at the bight wind deflector (11) of described casing (21) edge.
9. according to the constant temperature and moisture test machine described in any one in claim 1～8, it is characterized in that: the inside of described chamber (2) is equiped with dismountable sample swinging mounting (12), described sample swinging mounting (12) is in transmission connection by transmission device (13) buncher (14) inner with being installed in described testing machine shell (1).
10. constant temperature and moisture test machine according to claim 9, it is characterized in that: described sample swinging mounting (12) comprises rotating shaft (121), top chock (122), step (123), travelling gear (124) and at least one are fixed on the rotating disk (126) in described rotating shaft (121) by rotating disk holder (125), described top chock (122) is installed in the upper end of described rotating shaft (121) and is fixed on the top of described casing (21), described step (123) is installed in the lower end of described rotating shaft (121) and is fixed on the bottom of described casing (21), described travelling gear (124) is positioned at the below of described step (123), described travelling gear (124) is in transmission connection with described transmission device (13), described transmission device (13) comprises driving-belt, shaft coupling, gear or speed changer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410047961.8A CN103816948B (en) | 2014-02-11 | 2014-02-11 | Constant temperature and moisture test machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410047961.8A CN103816948B (en) | 2014-02-11 | 2014-02-11 | Constant temperature and moisture test machine |
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| CN103816948A true CN103816948A (en) | 2014-05-28 |
| CN103816948B CN103816948B (en) | 2016-02-10 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105444273A (en) * | 2015-12-29 | 2016-03-30 | 美的集团武汉制冷设备有限公司 | Air conditioner indoor unit |
| CN108168675A (en) * | 2018-03-05 | 2018-06-15 | 杭州微智兆智能科技有限公司 | Full-automatic polydisc constant temperature and humidity precision weighing system |
| CN109261228A (en) * | 2018-09-10 | 2019-01-25 | 伟奥仕（北京）科技有限公司 | A kind of environment storehouse of constant temperature and humidity |
| 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 |
| CN110440635A (en) * | 2019-08-03 | 2019-11-12 | 广州克莱美特仪器设备科技有限公司 | A kind of dedicated embedded protecting against shock of artillery system, vibration proof high/low temperature hygrothermal environment firing test cabin |
| CN113070194A (en) * | 2021-03-16 | 2021-07-06 | 惠州市赢合科技有限公司 | Oven with uniform air outlet |
| CN116689046A (en) * | 2023-07-12 | 2023-09-05 | 昆山博思通仪器设备有限公司 | Energy-saving environment-friendly programmable constant temperature and humidity testing machine |
| CN118583199A (en) * | 2024-08-08 | 2024-09-03 | 广州五所环境仪器有限公司 | Double-shaft turntable environment test box |
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| CN110440635A (en) * | 2019-08-03 | 2019-11-12 | 广州克莱美特仪器设备科技有限公司 | A kind of dedicated embedded protecting against shock of artillery system, vibration proof high/low temperature hygrothermal environment firing test cabin |
| CN110440635B (en) * | 2019-08-03 | 2021-09-17 | 广州克莱美特仪器设备科技有限公司 | Special embedded impact-proof and vibration-proof high-low temperature damp-heat environment shooting test chamber for artillery system |
| CN113070194A (en) * | 2021-03-16 | 2021-07-06 | 惠州市赢合科技有限公司 | Oven with uniform air outlet |
| CN116689046A (en) * | 2023-07-12 | 2023-09-05 | 昆山博思通仪器设备有限公司 | Energy-saving environment-friendly programmable constant temperature and humidity testing machine |
| CN118583199A (en) * | 2024-08-08 | 2024-09-03 | 广州五所环境仪器有限公司 | Double-shaft turntable environment test box |
| CN118583199B (en) * | 2024-08-08 | 2024-10-11 | 广州五所环境仪器有限公司 | Double-shaft turntable environment test box |
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| CN103816948B (en) | 2016-02-10 |
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