CN1752880A - Automatic adjustment type constant temperature oven - Google Patents
Automatic adjustment type constant temperature oven Download PDFInfo
- Publication number
- CN1752880A CN1752880A CN200410051722.6A CN200410051722A CN1752880A CN 1752880 A CN1752880 A CN 1752880A CN 200410051722 A CN200410051722 A CN 200410051722A CN 1752880 A CN1752880 A CN 1752880A
- Authority
- CN
- China
- Prior art keywords
- constant temperature
- casing
- temperature oven
- automatic adjustment
- type constant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/02—Furnaces of a kind not covered by any preceding group specially designed for laboratory use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0014—Devices for monitoring temperature
Abstract
A kind of automatic adjustment type constant temperature oven comprises a casing, and a fan is installed at the top of this casing, and this box house is installed a board.The control circuit of this constant temperature oven comprises that a power unit, an adjustment control assembly and place the heater block in this casing.This power unit provides power supply for this fan, this adjustment control assembly and this heater block.This adjustment control assembly comprises that one places T type temperature-sensitive heat-sensitive line, a temperature controller, a pair of controlled relay and the some single controlled relays in this casing, the pair of control key of this pair controlled relay is connected with fan and these single controlled relays respectively, and these single controlled relays are connected with this heater block.These heater blocks are formed in parallel by some power resistors and diode.This automatic adjustment type constant temperature oven controls the unlatching of fan and heater block and cuts out the temperature in the realization adjusting constant temperature oven by the cooperation of temperature controller and relay by the sensing of this T type temperature-sensitive heat-sensitive line to the temperature inside the box.
Description
[technical field]
The invention relates to a kind of constant temperature oven, be meant a kind of automatic adjustment type constant temperature oven that is used for the heat performance test of each electronic product such as computer especially.
[background technology]
Electronic products such as computer have an important performance pointer: heat performance index, duty and the ruuning situation of this performance index reflection electronic product under the varying environment temperature.When electronic product is carried out the test of this index, need the temperature environment of a simulation, in the temperature environment of simulation, product is tested.
Usually, the way of industry is constant temperature oven of design, and product to be measured is put into constant temperature oven.The temperature of this constant temperature oven box house can be regulated in the scope that test parameter needs, and remains on the temperature that needs.Like this, constant temperature oven has been equivalent to for product simulation to be measured the environment of different temperatures, makes it accept test in constant temperature oven.
Constant temperature oven needs a heating arrangement, the being seen constant temperature oven of industry is used bulb, heat pipe etc. always as thermal source, patent as TaiWan, China patent announcement No. 386611 disclosed " simple and easy constant temperature oven " by name, it comprises that a main casing and places main casing inside, it is the compound board of a heating zone and a test section that main casing inside is separated, heating arrangement is placed the heating zone, and form thermal convections by the some thermal troughs that are provided with on the board, make the hot temperature of heating zone can be to flowing in this test section.This heating arrangement is made up of bulb or heating tube, and these two kinds of thermals source mainly are radiation heat, and the part that can shine light just can receive heat, and the part that can not shine can not receive heat, thereby causes the product to be measured in the test section to be heated inhomogeneous.And need to rely on thermal trough to make the interior heat forced convertion of casing, yet the convection current that heat pipe can form is limited, can not makes the temperature in the constant temperature oven reach balanced rapidly.And if utilize the bulb heating, its serviceable life is short.
In fact, our products such as computer of design all are to use in the environment of natural convection, and the residing temperature in each position of product is basic identical, if constant temperature oven can not be simulated actual operating position, have then lost the meaning of test and design verification.
[summary of the invention]
The object of the present invention is to provide a kind of simple in structure, superior performance, and can regulate the automatic adjustment type constant temperature oven of temperature automatically.
For realizing described purpose, the automatic adjustment type constant temperature oven of the present invention comprises a casing, and this casing antetheca is established the chamber door that can freely open, and an opening is established at the top of this casing, installing one fan in this opening, the lower horizontal installing one of this box house is in order to place the lattice-shaped board of product to be measured.This constant temperature oven also comprises a control circuit, and it comprises that a power unit, an adjustment control assembly and place the heater block in this casing.This power unit provides power supply for this fan, this adjustment control assembly and this heater block.This adjustment control assembly comprises that one places T type temperature-sensitive heat-sensitive line, a temperature controller, a pair of controlled relay and the some single controlled relays in this casing, the pair of control key of this pair controlled relay is connected with fan and these single controlled relays respectively, and these single controlled relays are connected with this heater block.These heater blocks are formed in parallel by some power resistors and diode.This automatic adjustment type constant temperature oven to the sensing of the temperature inside the box, by the unlatching of the cooperation control fan of temperature controller and relay and heater block and cut out, opens fan by this T type temperature-sensitive heat-sensitive line when temperature is too high, close heater block; Cross when temperature and to close fan when low, open heater block, realize keeping in the constant temperature oven predetermined temperature.
The invention has the advantages that the utilization of automatic control circuit, and adopt power resistor to generate heat, the heat of its generation is for dispersing heat and photothermal mixing, uneven problem can keep from heat, and need not external force and make the case inner air convection, forced convertion in the common constant temperature oven is improved as natural convection, reaches the purpose of simulating natural environment.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an inner structure synoptic diagram of the present invention.
Fig. 3 is a schematic block circuit diagram of the present invention.
Fig. 4 is the power unit and the control section of circuit theory diagrams of the present invention.
Fig. 5 is the heater block of circuit theory diagrams of the present invention.
[embodiment]
Please refer to Fig. 1, the automatic adjustment type constant temperature oven of the present invention comprises a casing 1, and this casing 1 antetheca is established the chamber door that can freely open 2, and a windowpane is established at these chamber door 2 middle parts, with convenient casing 1 internal state of observing.These chamber door 2 one ends pivot and are installed on this casing 1, establish leader 4 with convenient this chamber door 2 of opening away from one of this hub switch side side.This casing 1 and this chamber door 2 adjacent bottoms, two side are established a depression 6 respectively, to make things convenient for the carrying of this constant temperature oven.The center of top of this casing 1 is established a circular open 7, and this opening 7 is used to install a fan 12.
Please refer to Fig. 2, casing 1 inner close bottom level is installed a board 10, and this board 10 is the permeable structures of lattice-shaped, and this board 10 is used for placing product to be measured.
Please continue with reference to Fig. 3, the automatic regulatory function of the automatic adjustment type constant temperature oven of the present invention realizes that by control circuit Fig. 3 is the schematic block circuit diagram of this automatic adjustment type constant temperature oven.The control circuit of the automatic adjustment type constant temperature oven of the present invention comprises power unit 20, adjustment control assembly 30 and heater block 50.
Please refer to Fig. 4, this power unit 20 comprises that a transformer 21, a bridge-type subtract ripple diode 23 and an electric capacity 25.The input end of this transformer 21 inserts 220 volts electric main, and this bridge-type of output termination of this transformer 21 subtracts the input end of ripple diode 23, and this bridge-type subtracts the output terminal and the electric capacity 25 of ripple diode 23 and connects, as the power output end 27 of this power unit 20.This power unit 20 is by the transformation of this transformer 21, what this bridge-type subtracted ripple diode 23 and this electric capacity 25 subtracts the ripple rectification, at the direct current of 12 volts of these power output end 27 outputs, this voltage of 12 volts promptly is unlatching and the running voltage that this fan 12, this heater block 50 need.
This adjustment control assembly 30 comprises: a temperature controller 32, one T type temperature-sensitive temperature-sensitives electricity coupling 33, a pair of controlled relay 37 and some single controlled relays parallel with one another 41,43,45,47.This temperature controller 32 connects 220 volts of civil powers.This T type temperature-sensitive temperature-sensitive electricity coupling 33 inserts this temperature controller 32.This temperature controller 32 also comprises a gauge tap 35, and this gauge tap 35 connects this pair controlled relay 37, and this pair controlled relay 37 comprises one first operating key 371 and one second operating key 372.One end of this first operating key 371 links to each other with this power output end 27, and the other end connects the fan 12 on this casing 1, in order to control the opening and closing of this fan 12.One end of this second operating key 372 links to each other with this power output end 27, and the other end is connected with this list controlled relay 41,43,45,47 respectively.This list controlled relay 41,43,45,47 comprises switch 42,44,46,48 respectively.One end of this switch 42,44,46,48 all connects power output end 27, and another output terminal is respectively K1, K2, K 3, K4.
Please in the lump with reference to Fig. 5, this heater block 50 comprises heating group 51,53,55,57, the corresponding single controlled relay of each heating group.This heating group 51,53,55,57 comprises the power resistor 60 and a diode connected in parallel 52,54,56,58 of some parallel connections.The end that each heating group connects diode cathode links to each other other end ground connection with output terminal K1, K2, K 3, the K4 of corresponding single controlled relay respectively.
This T type temperature-sensitive temperature-sensitive electricity coupling 33 is wire, the temperature of its environment of living in of energy sensing.This T type temperature-sensitive temperature-sensitive electricity coupling 33 can be placed on casing 1 inner any position, usually, for increasing the sensitivity and the accuracy of temperature sensing, the electric coupling 33 of the T type temperature-sensitive temperature-sensitive of wire is run through the inside that is suspended on casing 1.The heating group 51,53,55,57 of these heater blocks 50 is placed on the bottom of casing 1, in order to heat natural convection in the casing 1, and evenly places, in order to the temperature equalization in the casing 1.Other components and parts of control circuit can be made into module, place in the control circuit case (figure does not show), and the position of this control circuit case does not have specific (special) requirements, if consider to avoid it to be subjected to the influence of environment in the case to cause error, this control circuit case preferably places the casing outside.
During use,, temperature controller 32 is set a probe temperature according to the needs of test.Product to be measured is placed on the board 10 in the casing 1, shut chamber door 2.T type temperature-sensitive temperature-sensitive electricity coupling 33 senses the temperature of its casing 1 internal environment and transfers to this temperature controller 32, when T type temperature-sensitive temperature-sensitive electricity coupling 33 sensed temperature are higher than predetermined probe temperature, then this temperature controller 32 disconnects gauge tap 35, by two controlled relays 37 of this gauge tap 35 controls with these first operating key, 371 closures, with these second operating key, 372 disconnections.At this moment, single controlled relay 41,43,45,47 that is connected with this first operating key 371 and power output end 27 disconnect, and corresponding heater block 50 all cuts off the power supply; Simultaneously, by fan 12 energisings that this first operating key 371 is connected with power output end 27, fan 12 is opened, and casing 1 inside is lowered the temperature.Otherwise, when T type temperature-sensitive temperature-sensitive electricity coupling 33 sensed temperature are lower than probe temperature, these temperature controller 32 closed gauge tap 35, then two controlled relays 37 disconnect this first operating key 371, with these second operating key, 372 closures.Fan 12 outage stalls.Simultaneously, second operating key 372 of conducting makes the switch 42,44,46,48 of single controlled relay 41,43,45,47 all closed, output terminal K1, the K2 of voltage output end 27 and single controlled relay, K3, K4 connect, diode 52,54,56,58 conductings of then heating group 51,53,55,57, power resistor 60 whole heating powers.The heat that power resistor 60 heatings produce is for dispersing heat and photothermal mixing, uneven problem can keep from heat, and need not external force (fan etc.) and make the case inner air convection, the forced convertion in the common constant temperature oven is improved as natural convection, reach the purpose of simulating natural environment.
The automatic adjustment type constant temperature oven of the present invention, but wherein this T type temperature-sensitive temperature-sensitive electricity coupling 33 also can be the temperature sensing device of other sensing temperatures.For reaching the purpose of fast cooling, can on casing 1 or in the casing 1 a plurality of fans be set, when circuit design with fan 12 in parallel getting final product.Also the needs on border increase or reduce the number of heating group factually, only need the heating group is evenly placed again, and the number that changes single controlled relay accordingly get final product.
Claims (10)
1. automatic adjustment type constant temperature oven, comprise a casing and a chamber door, it is characterized in that: this casing is established an opening, installing one fan in this opening, this box house is established a board near the bottom, this automatic adjustment type constant temperature oven is established a control circuit, it comprises a power unit, one adjustment control assembly and one places the heater block in this casing, this power unit is this fan, this adjustment control assembly and this heater block provide power supply, this adjustment control assembly is connected with this fan and this heater block respectively to control its running, this heater block comprises some heating groups, and each heating group comprises some power resistors in parallel with it.
2. automatic adjustment type constant temperature oven as claimed in claim 1, it is characterized in that: a windowpane is established at this chamber door middle part, this chamber door one end pivots and is installed on this casing, establishes the leader away from one of this hub switch side side, and the bottom, two side that this casing is adjacent with this chamber door is established a depression respectively.
3. automatic adjustment type constant temperature oven as claimed in claim 1, it is characterized in that: this power unit comprises that a transformer, a bridge-type subtract ripple diode and an electric capacity, the input termination civil power of this transformer, this bridge-type of output termination subtracts the input end of ripple diode, this bridge-type subtracts output terminal and this electric capacity of ripple diode and connects, and its common point is the power output end of this power unit.
4. automatic adjustment type constant temperature oven as claimed in claim 1 is characterized in that: each heating group of this heater block also comprise one with this power resistor diode connected in parallel.
5. automatic adjustment type constant temperature oven as claimed in claim 1, it is characterized in that: this adjustment control assembly comprises that one places the temperature sensing device in this casing, one temperature controller and a pair of controlled relay, this temperature sensing device and this pair controlled relay are connected with this temperature controller.
6. automatic adjustment type constant temperature oven as claimed in claim 5, it is characterized in that: this temperature controller also comprises a gauge tap, connects this pair controlled relay by this gauge tap.
7. automatic adjustment type constant temperature oven as claimed in claim 6 is characterized in that: this pair controlled relay comprises one first operating key and one second operating key, this power output end of a termination of this first operating key, and the other end connects the fan on this casing.
8. automatic adjustment type constant temperature oven as claimed in claim 7, it is characterized in that: each heating group of this heater block connects a single controlled relay respectively, one end of second operating key of this list controlled relay and this pair controlled relay links, this power output end of another termination of this second operating key.
9. automatic adjustment type constant temperature oven as claimed in claim 8 is characterized in that: when first operating key of this pair controlled relay was closed, this second operating key disconnected, when first operating key of this pair controlled relay disconnects, and this second operating key closure.
10. automatic adjustment type constant temperature oven as claimed in claim 1 is characterized in that: this board is the permeable structures of lattice-shaped.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410051722.6A CN1752880A (en) | 2004-09-25 | 2004-09-25 | Automatic adjustment type constant temperature oven |
| US11/224,908 US20060076092A1 (en) | 2004-09-25 | 2005-09-13 | Self-adjusting hot box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410051722.6A CN1752880A (en) | 2004-09-25 | 2004-09-25 | Automatic adjustment type constant temperature oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1752880A true CN1752880A (en) | 2006-03-29 |
Family
ID=36144094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410051722.6A Pending CN1752880A (en) | 2004-09-25 | 2004-09-25 | Automatic adjustment type constant temperature oven |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20060076092A1 (en) |
| CN (1) | CN1752880A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042748A (en) * | 2010-11-17 | 2011-05-04 | 杨启新 | Full-intelligent environmental-friendly energy-saving device of drier |
| CN102419604A (en) * | 2011-11-23 | 2012-04-18 | 河南省电力公司南阳供电公司 | Special drying box used in electric power system |
| CN101552911B (en) * | 2009-04-14 | 2012-09-26 | 重庆市海普软件产业有限公司 | A remote outdoor monitoring apparatus and automatic monitoring control method |
| CN103034263A (en) * | 2013-01-10 | 2013-04-10 | 中国科学院国家天文台南京天文光学技术研究所 | Heat preservation method and heat preservation equipment of instrument applied to low-temperature environment |
| CN103176130A (en) * | 2011-12-20 | 2013-06-26 | 龙焱能源科技（杭州）有限公司 | Temperature regulating device for solar cell accelerated aging test |
| CN103792970A (en) * | 2014-01-01 | 2014-05-14 | 广盟（广州）包装有限公司 | Constant temperature heating device |
| CN104460771A (en) * | 2014-12-16 | 2015-03-25 | 南京化工职业技术学院 | Temperature simulation object |
| CN104502396A (en) * | 2014-12-15 | 2015-04-08 | 深圳大学 | Temperature circulating box and temperature circulating control method thereof |
| CN108445932A (en) * | 2018-03-06 | 2018-08-24 | 河海大学常州校区 | A kind of temperature becomes the temperature control system of RTA reliability test assembly |
| CN114578880A (en) * | 2022-02-25 | 2022-06-03 | 华南理工大学 | Energy-saving constant-temperature control box and preparation method thereof |
| CN116678521A (en) * | 2023-05-24 | 2023-09-01 | 苏州英瑞传感技术有限公司 | Severe thermal effect generating equipment for thermosensitive device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104484000A (en) * | 2014-11-20 | 2015-04-01 | 界首市一鸣新材料科技有限公司 | Method for controlling temperature of vehicle water tank by ceramics |
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| GB900516A (en) * | 1957-07-08 | 1962-07-04 | Eisler Paul | Electric heating resistance strips |
| US3545832A (en) * | 1968-07-03 | 1970-12-08 | Jos M Linsey Corp | Heated display case |
| US3766973A (en) * | 1972-03-15 | 1973-10-23 | Gen Electric | Control circuit for heating and cooling apparatus |
| US3839622A (en) * | 1972-12-26 | 1974-10-01 | K Mastin | Electric, forced air towel warming cabinet |
| US3839726A (en) * | 1973-06-20 | 1974-10-01 | T Reichardt | Temperature-regulating cabinet for photographic processing apparatus |
| US4689303A (en) * | 1986-02-26 | 1987-08-25 | Kvm Engineering, Inc. | Controlled circulation incubator |
| US4775775A (en) * | 1987-06-16 | 1988-10-04 | Srtechnologies, Inc. | Programmable electrical heater |
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| KR960015366B1 (en) * | 1993-09-17 | 1996-11-09 | 엘지전자 주식회사 | Inverter cooking device |
| US5650080A (en) * | 1995-03-24 | 1997-07-22 | Koneke; Walter | Electric heating attachment for deicing the rest zone of a windshield wiper |
| US6504392B2 (en) * | 1999-03-26 | 2003-01-07 | International Business Machines Corporation | Actively controlled heat sink for convective burn-in oven |
| US6844805B2 (en) * | 2002-01-02 | 2005-01-18 | Minco Products, Inc. | Temperature detection and switching assembly |
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- 2004-09-25 CN CN200410051722.6A patent/CN1752880A/en active Pending
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- 2005-09-13 US US11/224,908 patent/US20060076092A1/en not_active Abandoned
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552911B (en) * | 2009-04-14 | 2012-09-26 | 重庆市海普软件产业有限公司 | A remote outdoor monitoring apparatus and automatic monitoring control method |
| CN102042748A (en) * | 2010-11-17 | 2011-05-04 | 杨启新 | Full-intelligent environmental-friendly energy-saving device of drier |
| CN102419604A (en) * | 2011-11-23 | 2012-04-18 | 河南省电力公司南阳供电公司 | Special drying box used in electric power system |
| CN103176130B (en) * | 2011-12-20 | 2015-08-05 | 龙焱能源科技（杭州）有限公司 | A kind of temperature regulating device for solar cell accelerated aging tests |
| CN103176130A (en) * | 2011-12-20 | 2013-06-26 | 龙焱能源科技（杭州）有限公司 | Temperature regulating device for solar cell accelerated aging test |
| CN103034263A (en) * | 2013-01-10 | 2013-04-10 | 中国科学院国家天文台南京天文光学技术研究所 | Heat preservation method and heat preservation equipment of instrument applied to low-temperature environment |
| CN103034263B (en) * | 2013-01-10 | 2015-01-07 | 中国科学院国家天文台南京天文光学技术研究所 | Heat preservation method and heat preservation equipment of instrument applied to low-temperature environment |
| CN103792970A (en) * | 2014-01-01 | 2014-05-14 | 广盟（广州）包装有限公司 | Constant temperature heating device |
| CN103792970B (en) * | 2014-01-01 | 2016-05-18 | 广盟（广州）包装有限公司 | Constant temperature heater |
| CN104502396A (en) * | 2014-12-15 | 2015-04-08 | 深圳大学 | Temperature circulating box and temperature circulating control method thereof |
| CN104502396B (en) * | 2014-12-15 | 2015-12-09 | 深圳大学 | A kind of temperature cycles case and temperature cycles control method thereof |
| CN104460771A (en) * | 2014-12-16 | 2015-03-25 | 南京化工职业技术学院 | Temperature simulation object |
| CN108445932A (en) * | 2018-03-06 | 2018-08-24 | 河海大学常州校区 | A kind of temperature becomes the temperature control system of RTA reliability test assembly |
| CN108445932B (en) * | 2018-03-06 | 2020-07-07 | 河海大学常州校区 | Temperature control system of temperature variation reliability testing device |
| CN114578880A (en) * | 2022-02-25 | 2022-06-03 | 华南理工大学 | Energy-saving constant-temperature control box and preparation method thereof |
| CN116678521A (en) * | 2023-05-24 | 2023-09-01 | 苏州英瑞传感技术有限公司 | Severe thermal effect generating equipment for thermosensitive device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060076092A1 (en) | 2006-04-13 |
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