TWI344070B - Self-adjusting hot box - Google Patents

Description

1344070 October 28, 2010, from the replacement of the page, the invention description: [Technical field of the invention] [0001] The present invention relates to an oven, especially for the thermal performance test of various electronic products such as computers Automatic adjustment type incubator. [Prior Art] [0002]

Electronic products such as computers have an important performance indicator: thermal performance indicators, which reflect the working status and operation of electronic products in different environmental temperatures. When testing this indicator for an electronic product, an analog temperature environment is required to test the product in the simulated temperature environment. .

[0003] Generally, the practice in the industry is designed in a thermostat. The inside of the incubator can be adjusted to maintain the desired temperature within the required range. Therefore, the thermostat is equivalent to • ·* - ··:« > Simulate different temperature environments for the product to be tested, so that it is different from the test in the incubator. [0004]

The thermostat requires a heating device/the common bulb of the incubator, the heat pipe, etc. as the heat source. For example, the patent entitled “Simple incubator” disclosed in the Republic of China Patent No. 38661 1 includes a main casing and a The utility model is disposed inside the main casing, separating the interior of the main casing into a composite plate of a heating zone and a test zone, placing the heating device in the heating zone, and forming a needle flow through the plurality of heat conduction grooves provided by the carrier plate_L The hot temperature of the heating zone can be convected into the test zone. The heating device is composed of a bulb or a heating tube. The two heat sources are mainly radiant heat, which can receive heat when it is irradiated to the part of the light, and cannot receive heat due to the part that cannot be irradiated, so that the product to be tested in the test area is not heated. Evenly. And need to rely on the heat conduction groove to make the heat inside the box 093130549 Form No. A0101 Page 4 / 18 pages 0993389112-0 1344070 'On October 28, 099, the shuttle is replacing the page amount forced convection, but the convection can be formed by the heat pipe Limited, can not quickly balance the temperature inside the incubator. And if the bulb is heated, its service life is short. [0005] In fact, products such as computers are used in a natural convection environment, and the temperature of each part of the product is basically the same. If the incubator cannot simulate the actual use, the meaning of testing and design verification is lost. [Summary of the Invention]

[0006] It is an object of the present invention to provide an automatic adjustment type incubator which is simple in structure, superior in performance, and capable of automatically adjusting temperature. [0007] An automatic adjustment type incubator includes a box body, a front door of the box body is provided with a freely open box door, and an opening is arranged at the top of the box body, and a fan is arranged in the opening A grid-like carrier for placing the product to be tested is installed horizontally at the lower portion of the interior of the body. The oven further includes a control circuit including a power supply portion, a temperature adjustment control member, and a heating member disposed within the housing. The power supply section provides power to the fan, the temperature adjustment control component, and the heating component. The temperature adjustment control component comprises a T-type thermocouple placed in the box, a temperature controller, a dual control relay and a plurality of single control relays, the pair of control switches respectively corresponding to the fan and the single The control relays are connected, and the single control relays are connected to the heating unit. The heating elements are formed by a parallel connection of a plurality of power resistors and a diode. The self-regulating thermostat senses the temperature inside the box through the T-type thermocouple, and controls the opening and closing of the fan and the heating component by the cooperation of the temperature controller and the relay, and turns on the fan when the temperature is too high, and turns off the heating component; When the temperature is too low, turn off the fan and turn on the heating unit to maintain the predetermined temperature in the incubator. 093130549 Form No. A0101 Page 5 of 18 0993389112-0 1344070 0"Year October 28 0 Correction Replacement Page [0008] This self-regulating incubator uses an automatic control circuit and uses a power resistor to generate heat, which generates heat. The combination of heat dissipation and radiant heat can avoid uneven heating, and no external force is required to convect the air in the box, and the forced convection in the ordinary incubator is improved to natural convection to achieve the purpose of simulating the natural environment. [Embodiment] [0009] Referring to the first figure, the automatic adjustment type incubator comprises a box body 1. The front wall of the box body 1 is provided with a freely open box door 2, and a glass is arranged in the middle of the box door 2

Window to facilitate the observation of the internal shape of the box 1. The 2-door end of the box door is pivotally mounted on the box body 1, away from the street without a turn to the home one _ say a hand 4 to facilitate opening

Each part of the department is provided with a box door 2 in the center. The ^11 and the box recess 6 are arranged to facilitate a circular opening 7 of the incubator, and the opening 7 is made of smoke to the chestnuts. [0010] Please refer to the second figure, the inside of the box 1 is near the bottom The water is provided with a carrier 10, which is a grid-like transparent structure, and the carrier 10 is used for placing the product to be tested. [0011] Continued to refer to the third figure, the automatic adjustment of the present invention: the automatic adjustment function of the type thermostat is realized by a control circuit, and the third diagram is a circuit block diagram of the automatic adjustment type thermostat. The control circuit of the automatic adjustment type incubator of the present invention comprises a power supply part 20, a temperature adjustment control part 30 and a heating part 50. [0012] Referring to the fourth figure, the power supply part 20 includes a transformer 21 and a bridge type wave-reducing diode. 23 and a capacitor 25. The input end of the transformer 21 is connected to an AC mains of 220 volts, and the output end of the transformer 21 is connected to the input end of the bridge wave-reducing diode 23, and the output of the bridge-type wave-reducing diode 23 and the capacitor 093130549 form No. A0101 Page 6 of 18 0993389112-0 1344070 On October 28, 099, the replacement page 25 is connected in parallel as the power output 27 of the power supply section 20. The power supply portion 20 is transformed by the transformer 21, and the bridge-type wave-reducing diode 23 and the capacitor 25 are subjected to wave-wave rectification, and 12 volts of direct current is outputted at the power output terminal 27, and the voltage of 12 volts is The fan 12 and the heating unit 50 need to be turned on and operated. [0013] The temperature adjustment control component 30 includes: a temperature controller 32, a T-type heat

The galvanic coupler 33, a dual control relay 37 and a plurality of single control relays 41, 43, 45, 47 are connected in parallel with each other. The temperature controller 32 is connected to 220 volts of mains. The T-type thermocouple 33 is connected to the temperature controller 32. The temperature controller 32 further includes a control switch 35 connected to the dual control relay 37. The dual control relay 37 includes a first control button 371 and a second control button 372. One end of the first control button 371 is connected to the power output end 27, and the other end is connected to the fan 12 on the casing 1 for controlling the opening and closing of the fan 12. One end of the second control button 372 is connected to the power output terminal 27, and the other end is connected to the single control relays 41, 43, 45, 47, respectively. The single control relays 41, 43, 45, 47 include switches 42, 44, 46, 48, respectively. One end of the switch 42, 44, 46, 48 is connected to the power output end 27, and the other output is ΚΙ, K2, K3, K4. [0014] Please refer to the fifth figure together. The heating component 50 includes heat generating groups 51, 53, 55, and 5, and each of the heat generating groups corresponds to a single control relay. The heat generating groups 51, 53, 55, 57 include a plurality of parallel power resistors 60 and a parallel diode 52, 54, 56, 58. One end of each of the heating group connected to the positive pole of the diode is respectively connected to the output terminals ΚΙ, K2, K3, K4 of the corresponding single control relay, and the other end is grounded.

[0015] The T-type thermocouple 33 is linear and can sense the temperature of the environment in which it is located. The T 093130549 Form No. A0101 Page 7 / 18 pages 0993389112-0 1344070 Thermocouple 33 can be placed inside the box 任何 any position is usually to increase the sensitivity and accuracy of temperature sensing, change, will be linear τ type thermoelectric The even 33 is suspended from the inside of the casing 1. The heating elements 51, 53, 55 5 7 of the heating elements 5 are placed at the bottom of the phase body 1 to facilitate natural convection of heat in the casing 1 and to be evenly placed to balance the temperature inside the casing. The other components of the control circuit can be made into modules, placed in the control circuit box (not shown), and there is no special requirement for the position of the control circuit box. If it is considered to avoid the error caused by the environment inside the box, The control circuit box is preferably placed outside the box. • > [0016] 0" October 280 when used, according to the test Weng; set a test temperature. Place the product to be tested in the box door 2. The T-type thermocouple 31⁄4 detects that its box is transmitted to the temperature controller 32. When the τ-type thermocouple 33 senses the maintenance to a predetermined test temperature, the temperature controller .32 open control switch is controlled by the control switch 35. The controlled dual control relay 37 closes the 芦 一 . 芦 芦 37 key 37 ι ,, and disconnects the second control key 372. At this time,: and: read 4 three off #^372 connected to the single '.' . . 'f · · ·;, '. Control relay 41, 43, 45, 47 production zero: the source of the out of the 27 The corresponding heating unit 50 is completely powered off; at the same time, the fan 12 connected to the power output terminal 27 through the first control button 371 is energized, and the fan 12 is turned on to cool the inside of the casing 1. Conversely, when the temperature sensed by the T-type thermocouple 33 is lower than the test temperature, the temperature controller 32 closes the control switch 35, the dual control relay 37 turns off the first control key 371, and closes the second control key 372. . The fan 12 is powered off and stopped. Meanwhile, the second control button 372 is turned on to close all the switches 42, 44, 46, 48 of the single control relays 41, 43, 45, 47, and the output terminals of the voltage output terminal 27 and the single control relay. ΚΙ, K2, K3, K4 093130549 Form No. A0101 Page 8 / Total 18 Page 0993389112-0 1344070 Correction of the replacement on October 28, 2017, Bellow J heating group 5 1 ' 5 3, 5 5, 5 7 The diodes 5 2 ' 5 4, 5 6 , 58 are turned on, and the power resistors 60 are all energized and heated. The heat generated by the heat of the power resistor 60 is a mixture of heat dissipation and light heat, which can avoid the problem of uneven heating, and does not require external force (fan, etc.) to convect the air in the box, and improves the forced convection in the ordinary incubator to natural convection. To achieve the purpose of simulating the natural environment.

[0017] wherein the T-type thermocouple 33 can also be other temperature sensing devices that can sense temperature. In order to achieve rapid cooling, a plurality of fans may be disposed on the casing 1 or in the casing 1, and may be connected in parallel with the fan 12 during circuit design. It is also possible to increase or decrease the number of heat generating groups according to actual needs. Simply place the heating group evenly and change the number of single control relays accordingly. [0018] In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0019] The first figure is a schematic perspective view of a self-regulating thermostat of the present invention. [0020] The second figure is a schematic diagram of the internal structure of the automatic adjustment type incubator of the present invention. [0021] The third figure is a circuit block diagram of the automatic adjustment type incubator of the present invention. [0022] The fourth figure is a power supply part and a control part of the circuit schematic diagram of the present invention. [0023] The fifth figure is a heating component of the circuit schematic of the present invention. [Main component symbol description] [0024] Enclosure: 1 0993389112-0 093130549 Form No. A0101 Page 9 / Total 18 Page 1344070 [0025] Door: 2 [0026] Handle: 4 [0027] Depression: 6 [0028] Opening: 7 October 28, 099, the shuttle is replacing the page

[0030] [0030] [0030] [0034] [0034] [0035] [0037] [0038] [0040] [0044] [0043] [0043] carrier: 10 fans :12 Power section: 20 Transformer: 21

Temperature controller: 32 T-type thermocouple: 33 dual-control relay: 37 First control button: 371 Second control button: 372 Single-control relay: 41, 43, 45, 47 Switch: 42, 44, 46, 48 Bridge Wave-reducing diode i : 23 Capacitance: 25 Power output: 27 Temperature control control unit: 30

093130549 Form No. A0101 Page 10 / Total 18 Page 0993389112-0 1344070 October 28, 2008, the replacement page [0044] Output: ΚΙ, K2, K3, K4 [0045] Heating parts: 50 [0046] Heating group : 51, 53, 55, 57 [0047] Power Resistor: 60 [0048] Diode: 52, 54, 56, 58 093130549 Form No. A0101 Page 11 / Total 18 Page 0993389112-0

Claims (1)

丄州070 October 28, self-correction replacement page 'patent scope: 'Automatic adjustment type thermostat, including: - box, the box is provided with an opening, the opening is equipped with a fan, the box a support plate is disposed near the bottom; a heating component is disposed in the casing to include a plurality of heat generating groups, each of the heat generating cores includes a plurality of power resistors connected in parallel; and a temperature regulating control component is respectively associated with the fan and the fan The heating component is connected to control its operation. The temperature regulating control component comprises a temperature sensing device disposed in the casing, a temperature controller and a dual control relay, the temperature sensing device and the dual temperature sensing The device includes a τ-type thermal t-couple; and the old ..|p-ifclfck - power supply portion ' is used to supply power to the wind component and the heating component. 'Leak-** is intended to be an automatic adjustment g-temperature box as described in claim 1, wherein the box is provided with a box door, a handle is provided on one side of the box door, and a glass window is arranged on the side of the box. -»· - 〇·. , i : ---3⁄4 - .... I. As described in the second paragraph of the patent application, < self-adjusting & incubator, wherein the box is adjacent to the side wall of the box door A depression is placed in the lower part. The automatic adjustment type incubator according to claim i, wherein the power supply part comprises a transformer, a bridge type wave-reducing diode and a capacitor, wherein the input end of the transformer is connected to the mains, and the output terminal is connected to the The input end of the bridge type wave-reducing diode, the input of the bridge-wave diode is connected to the capacitor, and the common point is the power output end of the power part. The self-regulating thermostat according to claim i, wherein each heating group of the heating component further comprises a diode 093130549 in parallel with the power resistor. Form No. A0101 Page 2 / Total 8 Page 0993389112-0 1344070 • * — ___ On October 28, 099, the shuttle is replacing the page body. 6. The self-regulating thermostat of claim 1, wherein the temperature controller further comprises a control switch connected to the dual control relay. 7. The automatic adjustment type incubator according to claim 6, wherein the dual control relay comprises a first control key and a second control key, and when the first control key is closed, the second control key is broken. When the first control button is turned off, the second control button is closed. 'One of the first control keys is terminated to the power output terminal' and the other end is connected to the fan on the box. 8. The self-regulating type thermostat according to claim 7, wherein each of the heat-generating components is connected to a single control relay, the single #-relay and the double-controlled relay The second control button is connected to the end, and the other end of the control button is connected to the power output. 9. The self-regulating thermostat of claim 1, wherein the carrier is a grid-like transparent structure. Λ 093130549 Form No. Α0101 Page 3 of 18 0993389112-0