CN205797237U - A kind of low-and high-temp test facility - Google Patents
A kind of low-and high-temp test facility Download PDFInfo
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- CN205797237U CN205797237U CN201620590258.6U CN201620590258U CN205797237U CN 205797237 U CN205797237 U CN 205797237U CN 201620590258 U CN201620590258 U CN 201620590258U CN 205797237 U CN205797237 U CN 205797237U
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Abstract
The utility model discloses a kind of high and low-temperature apparatus, it includes equipment box, heating and refrigeration system and air circulating system, described air circulating system includes air outlet, return air inlet, airflow duct and air stream drives fan, described air outlet is located at equipment box top, described return air inlet is located at bottom equipment box, described airflow duct end communicates with air outlet, and described air stream drives fan is arranged on equipment box top.During the work of this kind of low-and high-temp test facility, air-flow acts perpendicularly to from top to bottom by test products under the driving of air stream drives fan, improves air velocity, improves heat exchanger effectiveness, can shorten and be achieved the goal the time required for temperature by test products.
Description
Technical field
This utility model belongs to low-and high-temp test facility and manufactures field and electron and electrician Product environment test field, particularly
Relate to a kind of low-and high-temp test facility.
Background technology
Low-and high-temp test facility is the industries widely used such as modern electronic equipment manufacture, communication manufacture, automobile making
Planting environmental test equipment, this testing equipment is typically made up of equipment box 1, heating and refrigeration system and air circulating system.?
Forming trial zone 6 in equipment box 1, air circulating system is responsible for high/low temperature air-flow to blow to trial zone 6.Air circulating system mainly has
Air outlet 2, return air inlet 3, airflow duct 4 and air stream drives fan 5 form.The high/low temperature air-flow that heating and refrigeration system generate,
Trial zone 6 is blowed to by air stream drives fan 5, it is achieved the temperature of trial zone 6 is controlled through airflow duct 4.
The air circulating system of traditional low-and high-temp test facility is arranged on the rear portion (rearmounted method) of equipment box 1, and air-flow drives
Wind symptom fan 5 and air outlet 2 are arranged on the rear upper of equipment box 1, and return air inlet 3 is arranged on the lower rear of equipment box 1, as
Shown in Fig. 1.The main shaft of the equipment that is oriented parallel to of its output gas flow, to (horizontal blast), then relies on the right-hand circular of air
Realize heat exchange.This configuration layouts circulation of air flow path length, heat exchanger effectiveness is low, by test products same level cross section
Each several part is heated inequality, if needing increase rate temperature change or strengthen the trial zone 4, Zhi Nengzeng of low-and high-temp test facility
Add low-and high-temp test facility heating and the power consumption of refrigerating part 5, increase subscriber equipment purchase cost and equipment operating cost.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of low-and high-temp test facility,
Improve the heat exchanger effectiveness of low-and high-temp test facility, improve rate temperature change, shorten test period, before same energy resource consumption
Put the trial zone that can increase low-and high-temp test facility.
The purpose of this utility model is achieved through the following technical solutions:
A kind of low-and high-temp test facility, including equipment box 1, heating and refrigeration system and air circulating system, described wind
Blood circulation includes that air outlet 2, return air inlet 3, airflow duct 4 and air stream drives fan 5, described air outlet 2 are located at equipment box 1
Top, described return air inlet 3 is located at bottom equipment box 1, and described airflow duct 4 end communicates with air outlet 2, described air stream drives
Fan 5 is arranged on equipment box 1 top.
Preferably, more than one exhaust fan 8 is installed bottom equipment box 1.
Preferably, equipment box top is provided with two or more air stream drives fan 5 and forms array.
Preferably, described air outlet 2 is relative with return air inlet about 3, low-and high-temp test facility work time, high/low temperature air-flow from
Vertical downflow at air outlet 2.
The beneficial effects of the utility model: the high/low temperature air-flow of the low-and high-temp test facility after improvement is at air stream drives fan
Driving under flow velocity be greatly improved, high/low temperature air-flow acts perpendicularly to the product that is put to the test from top to bottom, and this kind of flow direction makes to be put to the test
Product Level cross section is heated evenly, and simultaneously shortens again high/low temperature circulation of air flow path, improves heat exchanger effectiveness, improve by
The rate temperature change of test products, shortens and is achieved the goal the time needed for temperature by test products, decrease by trier
Product achieve the goal the energy needed for temperature, reduce equipment energy consumption.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of tradition low-and high-temp test facility；
Accompanying drawing 2 is this utility model a kind of low-and high-temp test facility casing top structure equipped with an air stream drives fan
Schematic diagram；
Accompanying drawing 3 is that this utility model one low-and high-temp test facility casing top is equipped with air stream drives fan case simultaneously
Equipped with the structural representation of an exhaust fan bottom body；
Accompanying drawing 4 is this utility model a kind of low-and high-temp test facility casing top structure equipped with two air stream drives fans
Schematic diagram；
Accompanying drawing 5 is that this utility model one low-and high-temp test facility casing top is equipped with two air stream drives fans case simultaneously
Equipped with the structural representation of an exhaust fan bottom body；
In Fig. 1 to Fig. 5: 1 is equipment box, 2 is air outlet, and 3 is return air inlet, and 4 is airflow duct, and 5 is air stream drives wind
Fan, 6 is trial zone, and 7 is high and low-temperature apparatus heating and refrigeration system, and 8 is exhaust fan.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Embodiment 1:
Do not change the heating of existing low-and high-temp test facility and the installation site of refrigerating part and working method, change wind and follow
The installation site of loop systems: air outlet 2 is located at the top of equipment box 1, is located at return air inlet 3 bottom of equipment box 1,
Airflow duct 4 end extends to the top of equipment box 1 and communicates with air outlet 2, and air stream drives fan 5 is arranged on equipment box
The top of body 1, as shown in Figure 2.
The high/low temperature air-flow of the testing equipment after improvement is under the effect of air stream drives fan 5, and flow velocity is greatly improved, just
Warm air acts perpendicularly to the product that is put to the test from top to bottom, and this kind of flow direction Product Level cross section that makes to be put to the test is heated evenly, simultaneously
Shorten again high/low temperature circulation of air flow path, improve heat transference efficiency, the rate temperature change of trial zone 6 can be improved, contracting
Short achieved the goal the time needed for temperature by test products.
Embodiment 2:
If needing to improve the rate temperature change of trial zone 6 in embodiment 1, can install additional at the return air inlet 3 of equipment
Exhaust fan 8 improves the air velocity in equipment box 1.After the temperature of trial zone 6 reaches required value, in order to reduce trial zone
The temperature fluctuation of 6, meets the requirement of temperature constant, can be automatically switched off the exhaust fan 8 at return air inlet 3, as shown in Figure 3.
Embodiment 3:
If needing to increase the trial zone 6 of testing equipment, but equipment heating and refrigeration power consumption, Ke Yi are not significantly increased
Two air stream drives fans 5 are installed at testing equipment top, form array fan, as shown in Figure 4.
Not can exceed that 1.7 meter per seconds owing to test standard limits the maximal rate of trial zone 6 air-flow, so conventional in layout
Large-scale walk-in type high-low temperature test chamber inside there is obvious temperature lag, cause each point temperature deviation in trial zone 6 relatively
Greatly, taking long enough to can be only achieved temperature homogeneity, the wide 3 meters of * of 5.2 meters of * of such as one walk-in test chamber length are high 2.5 meters
(39 cubic metres), air-flow needs to move at air stream drives fan 5 for 3 seconds to reach the distalmost end of trial zone 6.
Air stream drives fan 5 is arranged on equipment box 1 top, the headroom of trial zone 6 can be made full use of, and join
Put two air stream drives fans 5, can be substantially reduced because trial zone 6 becomes the temperature lag impact caused greatly (at trial zone 6 height
In the case of degree does not changes, two air stream drives fans 5 are installed and completely eliminate temperature lag), it is achieved that each portion in trial zone 6
Position reaches the requirement of homogeneous temperature at the appointed time.
Large-scale walk-in test chamber, in order to realize fast temperature change (such as larger than 5 degrees/min), can only increase unit and hold
Amount.And the most of capacity increased is the temperature losses caused to meet trial zone 6 far-end to postpone.Drive at top layout air-flow
After wind symptom fan 5, it is possible to achieve the cooling simultaneously and rapidly within trial zone 6, low-energy consumption is dropped.
Embodiment 4:
If needing the heat exchanger effectiveness of low-and high-temp test facility in further embodiment 3, the temperature improving trial zone 6 becomes
Change speed, an exhaust fan 8 can be installed at the return air inlet 3 of testing equipment, as shown in Figure 5.By installing exhaust fan 8, can
To increase air velocity further, improve the rate temperature change of testing equipment.After in trial zone 6, temperature reaches setting,
Exhaust fan 8 can quit work, and does not affect the temperature homogeneity of trial zone 6.
Claims (4)
1. a low-and high-temp test facility, including equipment box, heating and refrigeration system and air circulating system, its feature exists
In, described air circulating system includes air outlet, return air inlet, airflow duct and air stream drives fan, and described air outlet is located at equipment
Casing top, described return air inlet is located at bottom equipment box, and described airflow duct end communicates with air outlet, described air stream drives
Fan is arranged on equipment box top.
A kind of low-and high-temp test facility the most according to claim 1, it is characterised in that be provided with one bottom equipment box
Above exhaust fan.
A kind of low-and high-temp test facility the most according to claim 1, it is characterised in that equipment box top is provided with two
Above air stream drives fan forms array.
A kind of low-and high-temp test facility the most according to claim 1, it is characterised in that described air outlet and return air inlet are upper and lower
Relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590258.6U CN205797237U (en) | 2016-06-17 | 2016-06-17 | A kind of low-and high-temp test facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590258.6U CN205797237U (en) | 2016-06-17 | 2016-06-17 | A kind of low-and high-temp test facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205797237U true CN205797237U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620590258.6U Active CN205797237U (en) | 2016-06-17 | 2016-06-17 | A kind of low-and high-temp test facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108073192A (en) * | 2017-12-06 | 2018-05-25 | 上海华力微电子有限公司 | A kind of intelligent gas hood based on high/low-temperature impact system |
-
2016
- 2016-06-17 CN CN201620590258.6U patent/CN205797237U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108073192A (en) * | 2017-12-06 | 2018-05-25 | 上海华力微电子有限公司 | A kind of intelligent gas hood based on high/low-temperature impact system |
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