CN114096014B - Circuit board high-low temperature fault heating temperature controller equipment - Google Patents
Circuit board high-low temperature fault heating temperature controller equipment Download PDFInfo
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- CN114096014B CN114096014B CN202111397257.1A CN202111397257A CN114096014B CN 114096014 B CN114096014 B CN 114096014B CN 202111397257 A CN202111397257 A CN 202111397257A CN 114096014 B CN114096014 B CN 114096014B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 41
- 238000005485 electric heating Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 3
- 238000012360 testing method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a circuit board high-low temperature fault heating temperature controller device, which comprises a direct current digital display meter, a precise multi-turn potentiometer, an electrothermal film and a temperature controller box body, wherein four corners of the bottom of an inner cavity of the temperature controller box body are connected with a precise PWM power adjusting module through bolts, and the middle position inside the temperature controller box body is connected with a panel through bolts. Four paths of electrothermal films are arranged according to actual needs, each path of electrothermal film can be controlled independently, and a user can selectively heat according to actual needs.
Description
Technical Field
The invention relates to the technical field of temperature controllers, in particular to a circuit board high-low temperature fault heating temperature controller device.
Background
The electrothermal film heated by the temperature controller is a widely used emerging material, and is manufactured by processing and hot-pressing polyimide film serving as an outer insulator, metal foil, metal wire, metal current carrying strip and the like serving as an inner conductive heating body; when in use, the electrothermal film is used as a heating element to send heat into a space in a radiation mode or directly heat an object, and the electrothermal film has excellent insulating strength, excellent electric resistance strength, excellent conduction efficiency, excellent resistance stability, and excellent high temperature resistance, cohesiveness and radiation resistance; is suitable for the heating field and can obtain quite high temperature control precision.
At present, high and low temperature tests are required to be carried out on products in delivery, when the products fail in the high and low temperature tests, the positioning and the fault removal can be carried out only when the environment test box reaches a specific temperature, and a large amount of time can be wasted on the positioning and the fault removal work due to the longer temperature rise and fall time of the environment test box, and the efficiency is lower.
Therefore, it is desirable to provide a device that simulates the environment of a test chamber and performs fault reproduction for fault removal and verification.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and combines the requirement of product fault elimination in work, and automatically develops the circuit board heating temperature controller, which can achieve the effect of simulating an environment test box, and can lead the product to recover the fault after reaching the required temperature, thereby carrying out fault elimination and verification; when the electrothermal film is adopted for heating to remove the faults, the faults can be positioned timely and accurately, the fault removal period is shortened, and the method plays a great role in delivering products on time.
The invention aims to provide a circuit board high-low temperature fault heating temperature controller, which comprises a direct current digital display meter 1, a precise multi-turn potentiometer 2, an electrothermal film 3 and a temperature controller box 4, wherein four corners of the bottom of the inner cavity of the temperature controller box 4 are connected with a precise PWM power regulating module 17, the middle position inside the temperature controller box 4 is connected with a panel 5, the panel 5 is provided with a plurality of grooves, a temperature display 6, the direct current digital display meter 1 and a precise multi-turn potentiometer 2 are respectively connected with the grooves, a storage bag 7 is adhered to the inner side of the middle groove of a cover plate of the temperature controller box 4, the electrothermal film 3 is inserted in the middle of the storage bag 7, a wiring point of the electrothermal film 3 is connected with an aviation plug male head 11 through a welding wire, the side wall of the upper end of the panel 5 is inserted with a data interface 9, and the direct current digital display meter 1, the precise multi-turn potentiometer 2 and the temperature display 6 and the precise PWM power regulating module 17 are respectively electrically connected with the data interface 9 through wires;
the panel 5 lateral wall is pegged graft and is had female head 10 of aviation plug, female head 10 of aviation plug passes through wire and accurate PWM power adjustment module 17 electric connection, temperature sensor 12 bonds in electrothermal film 3 intermediate position, panel 5 lateral wall is connected with socket 13, socket 13 passes through wire and temperature display 6 electric connection, socket 13 is located female head 10 below of aviation plug, socket 13 with temperature sensor 12's plug 8 is connected.
The high-low temperature fault heating temperature controller for the circuit board provided by the invention is further characterized in that the grooves are respectively arranged at the upper end, the middle and the lower end of the panel, the temperature display 6 is embedded in the groove at the upper end of the panel 5, the direct current digital display meter 1 is connected in the groove at the middle of the panel 5, and the precise multiturn potentiometer 2 is connected in the groove at the lower end of the panel 5.
The high-low temperature fault heating temperature controller for the circuit board provided by the invention has the characteristics that the fan 14 is connected to the middle position of the inner side wall of the temperature controller box body 4, and the avoidance groove matched with the fan 14 is formed in the inner side wall of the temperature controller box body 4.
The high-low temperature fault heating temperature controller for the circuit board provided by the invention has the characteristics that the precise multi-turn potentiometer 2 is a linear digital knob potentiometer, and a dial is arranged on a knob of the precise multi-turn potentiometer 2.
The high-low temperature fault heating temperature controller for the circuit board provided by the invention has the characteristics that the lower end surface of the electrothermal film 3 is adhered with the heat-conducting rubber pad 15, the temperature sensor 12 is positioned on the upper end surface of the electrothermal film 3, the end part of the heat-conducting rubber pad 15 extends to the side wall of the electrothermal film 3, and the electrothermal film 3 is adhered to the surface of a device to be heated through the heat-conducting rubber pad.
The high-low temperature fault heating temperature controller for the circuit board provided by the invention is also characterized in that the power of the electrothermal film 3 is regulated by the precise multi-turn potentiometer 2, the power of the electrothermal film 3 is displayed by the direct current digital display table 1, and the temperature sensor 12 is used for acquiring the real-time temperature of the electrothermal film 3 and transmitting the acquired data to the temperature display 6 for display.
The invention provides a circuit board high-low temperature fault heating temperature controller which is characterized in that a handle 16 is connected to the middle position of the end part of a temperature controller box body 4, and anti-slip lines are formed in the middle of the handle 16.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through components such as the temperature display, the precise multi-turn potentiometer, the direct current digital display meter and the like which are arranged on the panel, and the electrothermal film component provided with the plug is additionally arranged, the circuit board heating temperature controller is formed, the temperature of a heated object and the working state of the electrothermal film can be monitored in real time, the temperature display precision is high, the working voltage adjusting range is wide, the adjusting precision is high, the operation is simple, and the effect is visual; four paths of electrothermal films are arranged according to actual needs, each path of electrothermal film can be controlled independently, and a user can selectively heat according to actual needs.
The circuit board heating temperature controller is characterized in that the circuit board heating temperature controller can achieve the effect of simulating an environment test box, and the product can reproduce faults after reaching the required temperature, so that the faults are removed and verified; when the electrothermal film is adopted for heating to remove the faults, the faults can be positioned timely and accurately, the fault removal period is shortened, and the method plays a great role in delivering products on time.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: the embodiment of the invention provides a structural schematic diagram of a heating temperature controller;
fig. 2: the embodiment of the invention provides a structural schematic diagram of an electrothermal film component in a heating temperature controller;
fig. 3: the embodiment of the invention provides a fan assembly structure schematic diagram in a heating temperature controller;
fig. 4: the embodiment of the invention provides a cross section of a side wall of a box body in a heating temperature controller.
Detailed Description
In order to make the technical means, creation characteristics, achievement purposes and effects of the present invention easy to understand, the following embodiments specifically describe the heating temperature controller provided by the present invention with reference to the accompanying drawings.
In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1-4, a circuit board high-low temperature fault heating temperature controller comprises a direct current digital display meter 1, a precise multi-turn potentiometer 2, an electrothermal film 3 and a temperature controller box 4, wherein four corners of the bottom of an inner cavity of the temperature controller box 4 are connected with a precise PWM power adjusting module 17 through bolts, a panel 5 is connected to the middle position inside the temperature controller box 4 through bolts, a plurality of grooves are formed in the panel 5, a temperature display 6, the direct current digital display meter 1 and the precise multi-turn potentiometer 2 are respectively connected to the plurality of grooves, a storage bag 7 is bonded to the inner side of the middle groove of a cover plate of the temperature controller box 4, the electrothermal film 3 is inserted in the middle of the storage bag 7, a connection point of the electrothermal film 3 is connected with an aviation plug male head 11 through a welding wire, a data interface 9 is inserted on the side wall of the upper end of the panel 5, and the direct current digital display meter 1, the precise multi-turn potentiometer 2 and the temperature display 6 and the precise PWM power adjusting module 17 are respectively electrically connected with the data interface 9 through wires;
the temperature display 6 can simultaneously realize accurate measurement of voltage, current and power, the direct-current voltage measurement range is 6.5-100 VDC, the current measurement is maximally 20A, the built-in current divider is arranged, and the power measurement range is 0.01-2000W; the temperature display 6 has a voltage alarm function (exceeding a voltage alarm threshold, backlight and voltage flicker prompt) and also has an electric quantity key zero clearing function, a power-down data storage function and an LCD full display function; the temperature signal is input into the direct current digital display meter 1 by the temperature sensor 12, the temperature sensor 12 is a K-type thermocouple, the display precision is +/-1 ℃ (the error of the thermocouple is not included), the resolution is 0.1 ℃, the measuring range is-50 ℃ to 999.9 ℃, the direct current digital display meter 1, the precise multi-turn potentiometer 2, the temperature display 6 and other components which are arranged on the panel 5 are additionally provided with the electric heating film 3 component which is provided with the plug 8, so that the basic structure of the circuit board heating temperature controller is formed, the circuit board heating temperature controller can monitor the temperature of an object to be heated and the working state of the electric heating film in real time, the temperature display precision is high, the working voltage adjusting range is wide, the adjusting precision is high, the operation is simple, and the effect is visual; four paths of electrothermal films are arranged according to actual needs, each path of electrothermal film can be controlled independently, and a user can selectively heat according to actual needs;
the side wall of the panel 5 is inserted with an aviation plug female head 10, the aviation plug female head 10 is electrically connected with a precise PWM power regulation module 17 through a wire, the temperature sensor 12 is adhered to the middle position of the electrothermal film 3, the side wall of the panel 5 is connected with a socket 13, the socket 13 is electrically connected with the temperature display 6 through a wire, the socket 13 is positioned below the aviation plug female head 10, and the socket 13 is connected with the plug 8 of the temperature sensor 12;
the temperature sensor 12 is a K-type thermocouple, the temperature measurement range is-200-260 ℃, the surface layer temperature resistance range is-276-260 ℃, the selected thermocouple wire core is thin and flexible, the thermocouple wire core is convenient to use in work, the plug 8 is plugged into the jack of the socket 13, the plug 8 supplies power to the electrothermal film 3, the electrothermal film 3 generates heat when being electrified, and the temperature of the position of the circuit board to be heated is detected.
In some embodiments, the plurality of grooves are respectively arranged at the upper end, the middle and the lower end of the panel, the temperature display 6 is embedded in the groove at the upper end of the panel 5, the direct current digital display table 1 is connected in the groove at the middle of the panel 5 through bolts, and the precise multiturn potentiometer 2 is connected in the groove at the lower end of the panel 5 through bolts.
In some embodiments, the middle position of the inner side wall of the temperature control instrument box 4 is connected with a fan 14 through a bolt, the fan 14 is electrically connected with the panel 5 through a wire, and the inner side wall of the temperature control instrument box 4 is provided with an avoidance groove matched with the fan 14. The fan 14 is additionally arranged on the inner side wall of the temperature control instrument box body 4, so that the electrothermal film 3 with higher temperature can be cooled conveniently, the cooling efficiency of the electrothermal film 3 is improved, and the waiting time is reduced.
In some embodiments, the precision multi-turn potentiometer 2 is a linear digital knob potentiometer, and a dial is provided on a knob of the precision multi-turn potentiometer 2. The accurate multiturn potentiometer 2 carries out load output adjustment, and the potentiometer is equipped with linear digital knob, has the calibrated scale, has the locking function, can accurate control electrothermal film's temperature to can lock the knob, guarantee that the knob is not influenced by the external world, keep current state.
In some embodiments, the lower end surface of the electrothermal film 3 is adhered with a heat-conducting rubber pad 15, the temperature sensor 12 is located on the upper end surface of the electrothermal film 3, the end of the heat-conducting rubber pad 15 extends to the side wall of the electrothermal film 3, and the electrothermal film 3 is adhered to the surface of the device to be heated through the heat-conducting rubber pad. The surface of the electrothermal film 3 is stuck with a heat-conducting rubber pad 15, and the heat-conducting rubber pad 15 has a certain protection effect on the surface of the component, so that the condition that the electrothermal film 3 is directly contacted with the component and the component is possibly scalded is avoided;
in some embodiments, the power of the electrothermal film 3 is adjusted by the precise multi-turn potentiometer 2, the dc digital display table 1 displays the power of the electrothermal film 3, and the temperature sensor 12 is used for acquiring the real-time temperature of the electrothermal film 3 and transmitting the acquired data to the temperature display 6 for display.
In some embodiments, a handle 16 is connected to the middle position of the end of the temperature controller box 4, and an anti-slip line is provided in the middle of the handle 16. The handle 16 is arranged on the side wall of the temperature control instrument box body 4, so that the temperature control instrument box body 4 can be conveniently transferred, and detection operations can be carried out at different positions.
The use method of the temperature controller provided by the embodiment is as follows:
when the temperature control instrument box body 4 is used, the direct current digital display meter 1 and the socket 13 corresponding to the temperature control assembly are opened, the plug 8 of the electrothermal film 3 is inserted into the socket 13, the aviation plug male head 11 of the temperature sensor 12 is inserted into the aviation plug female head 10 beside the socket 13, the temperature display 6 at the upper end of the panel 5 can display corresponding voltage and voltage data, meanwhile, the direct current digital display meter 1 can display the temperature of the electrothermal film 3 sensed by the temperature sensor 12, when a circuit fails at high temperature, the electrothermal film 3 with required specification can be directly heated for discharging, the electrothermal film 3 with required specification can be adhered to the surface of the circuit to be heated or the surface of a component, the heating can be carried out after the fixing is carried out, the surface of the electrothermal film 3 is adhered with the heat conducting rubber pad 15, the surface of the component is protected, and the temperature is automatically adjusted to the required test environment temperature; the normal heating temperature is 70 ℃ of the test environment, and can be adjusted according to specific requirements, and the temperature resistance value of the components is not exceeded during heating; testing the product in the heating process, when the temperature of the heating part is increased and the fault phenomenon is repeated, maintaining the temperature, replacing the electrothermal film 3 with corresponding specification and sticking the electrothermal film to the surface of a specific component until the specific component is finally positioned, replacing the suspected fault component, repeating the heating operation, and if the product works normally, completing the fault elimination;
when the circuit fails at low temperature, the electrothermal film 3 is stuck on the surface of the circuit to be heated, then the temperature of the test environment is low (-55 ℃) and the position stuck with the electrothermal film 3 is heated after the low-temperature failure is repeated, because the heating temperature of the low-temperature environment is not necessarily high, the operation can be carefully observed, when the temperature of the heated position is increased, and the failure phenomenon is eliminated, the failure position can be determined, and the operation is repeated after the corresponding components are replaced until the product works normally. During the use, the warmer of the electrothermal film 3 needs to be noted, and although the warmer has the circuit overvoltage protection, the warmer is in the power range of the electrothermal film as much as possible during the use, so as to avoid unnecessary accidents.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (6)
1. The utility model provides a circuit board high low temperature trouble heating temperature controller, includes direct current digital display table (1), accurate multiturn potentiometre (2), electric heat membrane (3) and temperature control appearance box (4), its characterized in that, four corners of temperature control appearance box (4) inner chamber bottom are connected with accurate PWM power regulation module (17), temperature control appearance box (4) inside intermediate position is connected with panel (5), be equipped with a plurality of recesses on panel (5), be connected with temperature display (6), direct current digital display table (1) and accurate multiturn potentiometre (2) respectively in a plurality of recesses, temperature control appearance box (4) apron intermediate groove inboard bonds has accomodate bag (7), electric heat membrane (3) are pegged graft in accomodate bag (7) in the middle, electric heat membrane (3) junction is connected with aviation plug male head (11) through the welding wire, data interface (9) are pegged graft to panel (5) upper end lateral wall, direct current digital display table (1), accurate multiturn potentiometre (2) and temperature display (6) and PWM power regulation module (17) are connected with the electrical property through the wire respectively; the electric heating device is characterized in that a heat conducting rubber pad (15) is bonded to the lower end face of the electric heating film (3), a temperature sensor (12) is located on the upper end face of the electric heating film (3), the end portion of the heat conducting rubber pad (15) extends to the side wall of the electric heating film (3), and the electric heating film (3) is bonded to the surface of a device to be heated through the heat conducting rubber pad;
the panel (5) lateral wall is pegged graft and is had female first (10) of aviation plug, female first (10) of aviation plug pass through wire and accurate PWM power adjustment module (17) electric connection, temperature sensor (12) bond in electrothermal film (3) intermediate position, panel (5) lateral wall is connected with socket (13), socket (13) pass through wire and temperature display (6) electric connection, socket (13) are located female first (10) below of aviation plug, socket (13) with plug (8) of temperature sensor (12) are connected.
2. The circuit board high-low temperature fault heating temperature controller according to claim 1, wherein the grooves are respectively arranged at the upper end, the middle and the lower end of the panel, a temperature display (6) is embedded in the groove at the upper end of the panel (5), the direct current digital display meter (1) is connected in the groove at the middle of the panel (5), and the precise multi-turn potentiometer (2) is connected in the groove at the lower end of the panel (5).
3. The circuit board high and low temperature fault heating temperature controller according to claim 1, wherein: the middle position of the inner side wall of the temperature control instrument box body (4) is connected with a fan (14), and the inner side wall of the temperature control instrument box body (4) is provided with an avoidance groove matched with the fan (14).
4. The circuit board high and low temperature fault heating temperature controller according to claim 1, wherein: the precise multi-turn potentiometer (2) is a linear digital knob potentiometer, and a dial is arranged on a knob of the precise multi-turn potentiometer (2).
5. The circuit board high and low temperature fault heating temperature controller according to claim 1, wherein: the power of the electrothermal film (3) is regulated by the precise multi-turn potentiometer (2), the power of the electrothermal film (3) is displayed by the direct current digital display meter (1), and the temperature sensor (12) is used for acquiring the real-time temperature of the electrothermal film (3) and transmitting the acquired data to the temperature display (6) for displaying.
6. The circuit board high and low temperature fault heating temperature controller according to claim 1, wherein: the middle position of the end part of the temperature control instrument box body (4) is connected with a handle (16), and anti-slip lines are formed in the middle of the handle (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111397257.1A CN114096014B (en) | 2021-11-23 | 2021-11-23 | Circuit board high-low temperature fault heating temperature controller equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111397257.1A CN114096014B (en) | 2021-11-23 | 2021-11-23 | Circuit board high-low temperature fault heating temperature controller equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114096014A CN114096014A (en) | 2022-02-25 |
| CN114096014B true CN114096014B (en) | 2024-03-19 |
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| CN202111397257.1A Active CN114096014B (en) | 2021-11-23 | 2021-11-23 | Circuit board high-low temperature fault heating temperature controller equipment |
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| CN211782629U (en) * | 2019-10-10 | 2020-10-27 | 青岛中加特电气股份有限公司 | Temperature and speed regulating device and heating equipment |
| CN212255509U (en) * | 2020-04-27 | 2020-12-29 | 仪军电线电缆（昆山）有限公司 | Constant high-temperature heating detection device |
| CN213372915U (en) * | 2020-06-22 | 2021-06-08 | 常州市第七人民医院 | Venous heating sleeve |
| CN111984041A (en) * | 2020-08-25 | 2020-11-24 | 吴江市太浦电器有限公司 | Temperature control terminal based on it is portable |
| CN213875492U (en) * | 2020-11-06 | 2021-08-03 | 贵州省果树科学研究所(贵州省柑橘研究所、贵州省特色果蔬工程技术中心、贵州省火龙果研究所) | Passion fruit storage simulation experiment device |
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