CN111964929B - Heat leakage performance experiment heat load calibration device - Google Patents
Heat leakage performance experiment heat load calibration device Download PDFInfo
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- CN111964929B CN111964929B CN202010724742.4A CN202010724742A CN111964929B CN 111964929 B CN111964929 B CN 111964929B CN 202010724742 A CN202010724742 A CN 202010724742A CN 111964929 B CN111964929 B CN 111964929B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
Abstract
The invention provides a heat load calibration device for a heat leakage performance experiment, which comprises: the heating system comprises a heating element, and the heating element is heated after being electrified to provide heat energy for the interior of the device; the temperature control system is electrically connected with the heating system, and controls the heating system to be closed when the temperature reaches a set value, so that the heating process is stopped; the heat dissipation system comprises an upper heat dissipation device, a middle heat dissipation device and a lower heat dissipation device which are connected with each other, a heating element is arranged inside the upper heat dissipation device, the upper surface of the middle heat dissipation device is attached to the lower surface of the upper heat dissipation device, and the lower heat dissipation device is fixed at the bottom of the middle heat dissipation device. The device can set target temperature at will and provide heat source with adjustable power and temperature; the heat dissipation is rapid, and the heating space is more uniform; the device has the advantages of simple structure, small size, convenience in operation, high testing accuracy and flexibility in application, and is suitable for heat leakage performance experiment detection of a specific internal space.
Description
Technical Field
The invention particularly relates to a heat load calibration device for a heat leakage performance experiment, which is applied to simulating heating quantity in heat insulation or heat leakage experiments of refrigerators, environmental comfort and the like.
Background
The level of energy efficiency (level of energy savings) of a refrigerator depends on the efficiency of the refrigeration system and the insulation/heat retention properties of the cabinet and door seals. The heat leakage performance test, namely the heat insulation performance test of the refrigerator, is generally required to be carried out during the design and development of the refrigerator.
In daily life and work of people, the temperature and air conditioning of indoor rooms have important influence on the comfort of human bodies, comfort related tests are carried out during the design of air conditioning products, the used comfort is tested, and the actual heat leakage performance of building houses is usually simulated in a laboratory.
When the heat insulation performance experiment of the refrigerator is carried out, a heating element is placed in the refrigerator to build higher temperature in the refrigerator, and a lower ambient temperature is built outside the refrigerator through an environmental laboratory, so that a larger temperature difference is formed between the inside and the outside of the refrigerator. The heating power required by the heating element to maintain a constant temperature in the refrigerator is the amount of heat leakage from the refrigerator. At present, the refrigerator heat insulation performance test is carried out by simple heating elements such as heating wires or bulbs.
GB/T33658-2017 'indoor human body thermal comfort environmental requirement and evaluation method' standard stipulates that an environmental comfort laboratory puts heat consistent with building load into an inner room from an outer room. Heat leakage between the inner and outer chambers and the heat load the outer chamber puts into the inner chamber need to be calibrated. The current common method is to use an electric bulb as the heat source of the inner chamber for calibration. The power of the bulb is adjusted to make the ambient temperature of the inner chamber and the ambient temperature of the outer chamber reach a balance, namely the heat leakage quantity of the inner chamber under the temperature difference.
When a heating element heating wire or an electric bulb is simply adopted as a heat source for a heat insulation/leakage experiment, due to the problem of local heating, space heating is not uniform, and test deviation is large. In addition, when the electric bulb is used as a heat source for the heat insulation/leakage experiment, a part of electric energy is converted into light energy, and the test result is influenced.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a heat load calibration device for a heat leakage performance experiment, which at least solves the problems that the space heating of the heating element adopted at present is not uniform, the deviation of the test result is large, and the accuracy of the heat leakage test result is influenced.
In order to achieve the above purpose, the invention provides the following technical scheme:
a heat leakage performance experiment heat load calibration device, the device includes:
a heating system, wherein the heating system comprises a heating element, and the heating element heats after being electrified to provide heat energy for the interior of the device;
the temperature control system is electrically connected with the heating system, and controls the heating system to be closed when the temperature reaches a set value, so that the heating process is stopped;
the heat dissipation system is used for dissipating heat and comprises an upper heat dissipation device, a middle heat dissipation device and a lower heat dissipation device which are connected with one another, the heating element is arranged inside the upper heat dissipation device, the upper surface of the middle heat dissipation device is attached to the lower surface of the upper heat dissipation device, and the lower heat dissipation device is fixed at the bottom of the middle heat dissipation device.
In the heat load calibration device for the heat leakage performance experiment, preferably, the device further comprises a power supply connecting device, wherein the input end of the power supply connecting device is connected with a power supply, and the output end of the power supply connecting device is respectively connected with the heating element, the temperature control system and the lower heat dissipation device;
preferably, the power supply connection device is arranged on the outer wall surface of the middle heat dissipation device.
In the heat load calibration device for the heat leakage performance experiment, preferably, the temperature control system comprises a temperature limiter, the temperature limiter is connected with the heating element to form a temperature limiting loop, and the temperature limiter controls the power-on process of the heating element to be disconnected after the temperature of the device reaches a first set temperature; and after the temperature of the device reaches the reset temperature, the temperature limiter controls the power-on process of the heating element to be switched on, and the heating is continued.
In the heat load calibration device for the heat leakage performance experiment, preferably, the upper heat dissipation device is a heat radiation plate.
In the heat load calibration device for the heat leakage performance experiment, preferably, the middle heat dissipation device is a heat dissipation fin;
preferably, a plurality of heat dissipation grooves are formed in the outer wall surface of the heat dissipation fin, heat dissipation holes are formed in the heat dissipation grooves, the heat dissipation grooves are evenly distributed on the panel of the heat dissipation fin, and heat is dissipated to the surrounding environment through the heat dissipation grooves.
In the heat load calibration device for the heat leakage performance experiment, preferably, the lower surface of the heat radiation plate is attached to the upper surface of the heat radiation fin.
In the heat load calibration device for the heat leakage performance experiment, preferably, the upper heat sink and the middle heat sink are connected in a fastening manner.
In the heat load calibration device for the heat leakage performance experiment, preferably, the lower heat dissipation device comprises a support member and a heat dissipation fan, the lower heat dissipation device forms a heat dissipation space with the object carrying surface through the support member, so as to facilitate lower heat dissipation, the support member is fixed at the bottom of the middle heat dissipation device, the support member is provided with a ventilation structure, the heat dissipation fan is arranged inside the support member, and heat exchange of ambient air is accelerated through the heat dissipation fan and the ventilation structure. In the heat load calibration device for the heat leakage performance experiment, preferably, the temperature control system further comprises a temperature protection device, the temperature protection device is connected in series with the temperature limiter and is connected with the heating element to form a temperature control loop, the temperature protection device comprises a temperature protector, and when the device reaches a second set temperature, the temperature protection device controls the heating system to be closed and stops heating; the second set temperature is higher than the first set temperature.
In the heat load calibration device for the heat leakage performance experiment, preferably, the heating element is a heating pipe.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
the heat load calibration device for the heat leakage performance experiment comprises a heating system, a temperature control system and a heat dissipation system, wherein the heating system is a heating heat source, the temperature control system controls the device to be disconnected after reaching a set temperature, a circuit is connected again after the temperature reaches a reset temperature, a specific temperature environment of an internal space is formed, and heat is rapidly and uniformly dissipated through the heat dissipation system, so that the heat of the whole internal space is more uniform. Specifically, the present invention also has the following excellent effects:
the heat radiation plate, the heat radiation fins and the fan can quickly radiate heat, so that local heat is reduced, and the whole space is heated more uniformly;
the temperature limiter can enable the device to reach any set temperature, the application is more flexible, and the temperature control is more accurate. The temperature protector forms secondary protection to the device, and when the temperature limiter broke down, the temperature protector can further accuse temperature, ensured the security of device.
Compared with the prior device, the invention can set the target temperature at will and provide a heat source with adjustable power and temperature; the heat dissipation is rapid, and the heating space is more uniform; the device has the advantages of simple structure, small size, convenience in operation, high heat leakage performance testing accuracy and more flexible application, and is particularly suitable for heat leakage performance experiment detection of a specific internal space.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
fig. 1 is a schematic structural diagram of a heat load calibration device for a heat leakage performance experiment according to an embodiment of the present invention.
In the figure: 1. heating a tube; 2. a heat radiation plate; 3. a heat sink; 4. a support member; 5. a temperature limiter; 6. a temperature protector; 7. and a power supply connecting device.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
As shown in figure 1, the invention provides a heat load calibration device for a heat leakage performance experiment, which is mainly applied to a refrigerator heat insulation performance experiment or a heat leakage rate experiment of an environment comfort laboratory, namely the heat leakage performance experiment of an internal space, and calibrates the heat leakage quantity of the internal space. The apparatus of the present invention comprises:
the heating system comprises a heating element, and the heating element is heated after being electrified to provide heat energy for the interior of the device; in a specific embodiment of the present invention, the heating element is the heating tube 1, but in other embodiments, the heating element may be another element capable of achieving heating, and the present invention is not limited thereto.
And the temperature control system is electrically connected with the heating system, and controls the heating system to be closed when the temperature reaches a set value, so that the heating process is stopped. The setting value is adjusted according to different environment requirements, and when the thermal load calibration device is applied to different environments, the setting value of the temperature control system can be set to different values.
In the specific embodiment of the invention, the temperature control system comprises a temperature limiter 5, the temperature limiter 5 is connected with the heating element to form a temperature limiting loop, after the temperature limiter 5 detects that the temperature of the thermal load calibration device reaches a first set temperature, the temperature limiter 5 controls the power-on process of the heating element to be switched off and stop heating, the inner chamber reaches the first set temperature, and when the temperature is reduced to reach a reset temperature, the temperature limiter 5 controls the power-on process of the heating element to be switched on and continue heating to form a specific temperature environment of the inner space.
And the heat dissipation system is used for dissipating heat, so that the heat is quickly and uniformly dissipated to the whole inner chamber space. The heat dissipation system comprises an upper heat dissipation device, a middle heat dissipation device and a lower heat dissipation device which are connected with each other, the heating element is arranged inside the upper heat dissipation device, the upper surface of the middle heat dissipation device is attached to the lower surface of the upper heat dissipation device, and the lower heat dissipation device is fixed at the bottom of the middle heat dissipation device.
In the embodiment of the present invention, the thermal load calibration apparatus further includes a power connection device 7, the power connection device 7 is disposed on an outer wall surface of the apparatus, specifically, the power connection device 7 is disposed on an outer wall surface of the middle heat dissipation device, and the arrangement of the power connection device 7 is required to facilitate connection of electrical components. The input end of the power supply connecting device 7 is connected with a power supply, and the output end of the power supply connecting device 7 is electrically connected with the heating element and a cooling fan of a cooling device at the lower part of the temperature control system and is used for carrying out circuit connection on different electrical elements. The power supply input ends of the heating element, the temperature control system and the heat dissipation fan of the lower heat dissipation device are arranged outside the device and are connected with the output end of the power supply connecting device 7 through a circuit outside the device.
In the specific embodiment of the present invention, the upper heat sink is the heat radiation plate 2, but in other embodiments, the upper heat sink may also be another heat radiation plate similar to the heat radiation plate 2 to achieve the heat radiation function, which is not limited in the present invention. The side wall of the heat radiation plate 2 is provided with an accommodating cavity, the heating element is placed in the accommodating cavity, and the outside of a wiring terminal of the heating element is connected with a power supply connecting device 7; preferably, heating pipe 1 is provided with a plurality ofly, is provided with a plurality of corresponding holding chambers on the heat radiation board 2, and heating pipe 1 even distribution is inside heat radiation board 2. One end of the temperature limiter 5 is fixed on the top surface of the heat radiation plate 2 and used for monitoring the temperature of the heat radiation plate 2, the other end of the temperature limiter is electrically connected with the output end of the power supply connecting device 7 and the heating element, and when the temperature limiter 5 monitors that the temperature of the heat radiation plate 2 reaches a first set temperature, the circuit of the heating element is controlled to be disconnected, and heating is stopped; when the temperature is reduced and reaches the reset temperature, the temperature limiter 5 controls the power-on process of the heating element to be switched on, and heating is continued to form a specific temperature environment of the inner space.
In the embodiment of the present invention, the middle heat dissipation device is a heat dissipation plate 3. Be provided with heat dissipation recess on the outer wall of fin 3, heat dissipation recess has a plurality ofly, is provided with the louvre on the heat dissipation recess, and a plurality of heat dissipation recess evenly distributed are on the panel of fin 3, and the heat gives off to the surrounding environment through heat dissipation recess in, thereby increase the external surface area increase heat dissipation of fin 3 through a plurality of heat dissipation recesses that set up. The upper heat sink and the middle heat sink are connected by fastening, preferably, the upper heat sink and the middle heat sink are connected by bolts or screws. The lower surface of the heat radiation plate 2 is attached to the upper surface of the heat radiation fin 3.
In the embodiment of the invention, the lower heat dissipation device comprises a support member 4 and a heat dissipation fan, the heat load calibration device for the heat leakage performance experiment is placed on the object carrying surface, a heat dissipation space is formed between the device and the object carrying surface through the support member 4, the heat dissipation of the lower part is facilitated, the support member 4 is fixed at the bottom of the middle heat dissipation device, the support member 4 and the middle heat dissipation device are connected in a fastening mode or in a welding mode, and the lower heat dissipation device is the heat dissipation fan (not shown in the figure). Support piece 4 can be for the supporting panel who has ventilative effect, and the support piece panel has ventilative structure, for example the hole of ventilating, can realize ventilative effect, and support piece 4 also can be braced frame, and radiator fan fixes in the bottom of fin 3, is in support piece 4's inside, and radiator fan is rotatory to make the air current rapid movement on every side, realizes the heat-conduction of gas molecule, gives off the heat fast to surrounding space.
In the specific embodiment of the invention, the heating pipe 1 generates heat and transmits the heat to the heat radiation plate 2 outside the heating pipe 1, the heat radiation plate 2 is attached to the heat radiation fin 3, the heat radiation plate 2 radiates the heat to the heat radiation fin 3, the upper part of the heat radiation fin 3 receives the heat and then radiates the heat to the periphery through the groove formed in the surface of the heat radiation fin 3, and the heat radiation fan arranged at the bottom of the heat radiation fin 3 rapidly transmits the heat to the surrounding space through airflow rotation, so that the heat transmission is rapidly realized, and meanwhile, the temperature of the internal space is uniform.
In the specific embodiment of the invention, the temperature control system further comprises a temperature protection device, the temperature protection device is fixed on the top surface of the upper heat dissipation device, the temperature protection device and the temperature limiter 5 are connected in series and are connected with the heating element to form a temperature control loop, the temperature protection device comprises a temperature protector 6, and when the temperature of the device reaches a second set temperature, the temperature protection device controls the heating system to be closed and stops heating; the second set temperature is higher than the first set temperature. The temperature of the temperature limiter 5 is lower than the set temperature of the temperature protector 6, and after the set temperature of the temperature limiter 5 is reached, the temperature limiter 5 controls the circuit of the heating pipe 1 to be disconnected under the general condition, the heating pipe 1 stops working, the temperature protection device is arranged to further protect, the second layer protection is prevented from being arranged due to the fact that the temperature limiter 5 fails, and the electronic element is prevented from being damaged.
In order to further illustrate the heat leakage performance test heat load calibration device of the present invention, the following two examples are adopted to illustrate the operation and implementation process of the device of the present invention.
Example 1
Insulation performance test of refrigerator
The set temperature of the external environment of the refrigerator is 16 ℃, and the ambient temperature is provided by an environmental laboratory; the heat load calibration device for the heat leakage performance experiment is respectively arranged in the refrigerating chamber and the freezing chamber of the refrigerator, the set temperature of the refrigerating chamber of the refrigerator is 28 ℃, and the set temperature of the freezing chamber of the refrigerator is 50 ℃. Three temperature measuring points are respectively arranged at the upper part, the middle part and the lower part of the refrigerating chamber of the refrigerator to test the temperature of the refrigerating chamber of the refrigerator, and five temperature measuring points are respectively arranged at the upper part, the middle part, the lower part, the front part and the rear part of the freezing chamber of the refrigerator to test the temperature of the freezing chamber of the refrigerator.
The first set temperature of the temperature limiter in the refrigerating chamber is 28 ℃ and the second set temperature of the temperature protector is 80 ℃. The first set temperature of the temperature limiter in the freezer compartment is 50 ℃ and the second set temperature of the temperature protector is 80 ℃. The device is connected with a power supply, the device is electrified, the heating pipe starts to heat, and after the device runs stably, the set temperature of the temperature limiter (measured by a temperature sensor in the refrigerator) is reached, the refrigerating chamber is 28 ℃, and the freezing chamber is 50 ℃. Through the heat dissipation of the heat dissipation system, the temperatures of three measuring points of the refrigerating chamber and five measuring points of the freezing chamber can be controlled within +/-1 ℃, and compared with the heating of a pure electric heating wire or a bulb, the temperature of an inner chamber space is locally heated.
Example 2
The heat leakage performance experiment heat load calibration device is characterized in that 9 heat leakage performance experiment heat load calibration devices are uniformly arranged in an environment comfort laboratory inner chamber with the length multiplied by the width multiplied by the height multiplied by 4.5m multiplied by 3.5m multiplied by 2.7 m. The set temperature of the outer room of the environmental comfort laboratory is 0 ℃, the set temperature of the outer room is provided by the environmental comfort laboratory, the set temperature of the inner room of the environmental comfort laboratory is 20 ℃, and the set temperature of the inner room is provided by the heat leakage performance experiment heat load calibration device.
The first set temperature of the temperature limiter is 20 ℃ and the second set temperature of the temperature protector is 80 ℃. After the temperature of the heating pipe is stabilized, namely the set temperature of the temperature limiter is reached (measured by a temperature sensor of the inner chamber environment), the heating pipe stops working, the temperature of the inner chamber is stabilized within the range of 20 +/-1 ℃ through heat dissipation of a heat dissipation system, and the temperature uniformity of the whole inner chamber is good and within the range of +/-0.5 ℃.
In conclusion, the heat load calibration device for the heat leakage performance experiment can quickly dissipate heat through the heat radiation plate, the heat dissipation fins and the fan, reduce local heat and enable the whole space to be heated more uniformly;
the temperature limiter can enable the device to reach any set temperature, the application is more flexible, and the temperature control is more accurate. The temperature protector forms secondary protection to the device, and when the temperature limiter broke down, the temperature protector can further accuse temperature, ensured the security of device.
Compared with the prior device, the invention can set the target temperature at will and provide a heat source with adjustable power and temperature; the heat dissipation is rapid, and the heating space is more uniform; the device has the advantages of simple structure, small size, convenience in operation, high heat leakage performance testing accuracy and more flexible application, and is particularly suitable for heat leakage performance experiment detection of a specific internal space.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The heat load calibration device for the heat leakage performance experiment is characterized by comprising:
a heating system, wherein the heating system comprises a heating element, and the heating element heats after being electrified to provide heat energy for the interior of the device;
the temperature control system is electrically connected with the heating system, and controls the heating system to be closed when the temperature reaches a set value, so that the heating process is stopped;
the heating element is arranged in the upper heat dissipation device, the upper surface of the middle heat dissipation device is attached and connected with the lower surface of the upper heat dissipation device, and the lower heat dissipation device is fixed at the bottom of the middle heat dissipation device;
the device also comprises a power supply connecting device, wherein the input end of the power supply connecting device is connected with a power supply, and the output end of the power supply connecting device is respectively connected with the heating element, the temperature control system and the lower heat dissipation device; the power supply connecting device is arranged on the outer wall surface of the middle heat dissipation device;
the temperature control system comprises a temperature limiter, the temperature limiter is connected with the heating element to form a temperature limiting loop, and the temperature limiter controls the power-on process of the heating element to be disconnected after the temperature of the device reaches a first set temperature; after the temperature of the device reaches the reset temperature, the temperature limiter controls the power-on process of the heating element to be switched on, and heating is continued;
the temperature control system also comprises a temperature protection device, the temperature protection device is connected with the temperature limiter in series and is connected with the heating element to form a temperature control loop, the temperature protection device comprises a temperature protector, and when the temperature of the device reaches a second set temperature, the temperature protection device controls the heating system to be closed and stops heating; the second set temperature is higher than the first set temperature;
the upper heat dissipation device is a heat radiation plate;
the middle heat dissipation device is a heat dissipation fin;
the heat dissipation plate is characterized in that a plurality of heat dissipation grooves are formed in the outer wall surface of the heat dissipation plate, heat dissipation holes are formed in the heat dissipation grooves, the heat dissipation grooves are evenly distributed in the panel of the heat dissipation plate, heat is dissipated to the surrounding environment through the heat dissipation grooves, and the longitudinal sections of the heat dissipation grooves are trapezoidal;
the lower radiating device comprises a supporting piece and a radiating fan, the lower radiating device forms a radiating space with the object carrying surface through the supporting piece so as to facilitate lower radiating, the supporting piece is fixed at the bottom of the middle radiating device, the supporting piece is provided with a ventilation structure, the radiating fan is arranged inside the supporting piece, and the heat exchange of surrounding air is accelerated through the radiating fan and the ventilation structure;
the heating element is a heating pipe, a containing cavity is formed in the side wall of the heat radiation plate, the heating element is placed in the containing cavity, the heating pipe is multiple, a plurality of corresponding containing cavities are formed in the heat radiation plate, and the heating pipe is uniformly distributed in the heat radiation plate.
2. The heat load calibrating apparatus for heat leakage performance test as claimed in claim 1, wherein the lower surface of said heat radiating plate is attached to the upper surface of said heat radiating plate.
3. The heat load calibration device for the heat leakage performance experiment as recited in claim 1, wherein the upper heat sink and the middle heat sink are connected by fastening.
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| JP4972069B2 (en) * | 2008-10-28 | 2012-07-11 | ナガノサイエンス株式会社 | Control method of air conditioner, air conditioner and environmental test apparatus |
| CN201575992U (en) * | 2009-12-23 | 2010-09-08 | 上海裕隆生物科技有限公司 | Small-sized thermostat |
| CN203251442U (en) * | 2012-11-01 | 2013-10-23 | 广州市亮今光电科技有限公司 | Automatic teller machine (ATM) constant temperature heating device |
| JP6211984B2 (en) * | 2014-04-11 | 2017-10-11 | 光洋サーモシステム株式会社 | Heated object load estimation device for microwave heating, microwave heating device, and heated object load estimation method for microwave heating |
| CN105784759A (en) * | 2016-03-22 | 2016-07-20 | 青岛海尔股份有限公司 | Heat leakage detection device and refrigerator heat leakage detection method |
| CN205793412U (en) * | 2016-06-03 | 2016-12-07 | 常州敏特电器有限公司 | A kind of electricity cabinet Graphene heater |
| CN209130972U (en) * | 2018-08-14 | 2019-07-19 | 徐党生 | A kind of 360 degree of hot wind radiating warmers |
| CN109490358A (en) * | 2018-11-14 | 2019-03-19 | 贵州省漆彩金州涂料有限公司 | A kind of detection method of heat preservation energy-saving coating heat transfer coefficient |
| CN110082137B (en) * | 2019-04-24 | 2020-04-10 | 西安交通大学 | Device and method for testing heat leakage load of different parts of refrigerator |
| CN110361215A (en) * | 2019-07-25 | 2019-10-22 | 山东安冷新材料科技有限公司 | A kind of heat-preserving equipment device for detecting performance and method |
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