CN220854713U - Surface temperature rising capability verification testing device - Google Patents
Surface temperature rising capability verification testing device Download PDFInfo
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- CN220854713U CN220854713U CN202322293489.3U CN202322293489U CN220854713U CN 220854713 U CN220854713 U CN 220854713U CN 202322293489 U CN202322293489 U CN 202322293489U CN 220854713 U CN220854713 U CN 220854713U
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- 238000012360 testing method Methods 0.000 title claims abstract description 121
- 238000012795 verification Methods 0.000 title claims abstract description 28
- 230000000630 rising effect Effects 0.000 title abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 93
- 239000000463 material Substances 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a surface temperature rising capability verification test device which comprises a heat conduction component, a temperature controller, a temperature sensor, a heating body and a direct current adjustable power supply, wherein the heat conduction component comprises a heating layer, a first temperature test layer and a second temperature test layer, the first temperature test layer and the second temperature test layer are respectively and fixedly arranged on two end surfaces of the heating layer, the heating body is inlaid and arranged at the center of the heating layer, a first test point and a plurality of second test points are arranged on the heating layer, the temperature sensor is arranged in the heating layer, the temperature sensor is connected with the temperature controller through a signal wire, the temperature controller is connected with the heating body through the direct current adjustable power supply, and the heating source and a temperature controller are combined by adopting the heat sensitive component as a heating source, so that the temperature of the heating source can be controlled, and the capability verification test with high accuracy is realized.
Description
Technical Field
The utility model relates to the technical field of laboratory capability verification, in particular to a surface temperature rising capability verification testing device.
Background
Laboratory capability verification (Proficiency Testing, PT) is the ability to determine the calibration/detection capabilities of a laboratory using inter-laboratory alignment. In order to make laboratory-to-laboratory testing capability comparisons, a reasonably designed test sample is required, and the design of the sample is required to ensure reliable uniformity. Used for ensuring the accuracy of the test between laboratories. In the related national standard, the allowable limit value of the temperature rise of the heating component of the electrical appliance is definitely specified, and particularly, the temperature rise value of the switching equipment is particularly important for ensuring the reliability and the service life of the electrical appliance when the switching equipment is used in explosive environments such as underground coal mines, petrochemical industry and the like. The experimental method is also the basis of the highest surface temperature of an important safety project of the explosion-proof electrical product, and the deviation of temperature measurement can cause the wrong division of temperature groups, so that the safe use of the explosion-proof electrical is influenced, and serious safety production accidents are most likely to be caused in a high-risk environment.
The existing surface temperature rise capability verification test device mainly has uneven heating, so that test data consistency is dispersed, larger uncertainty exists in test capability assessment, and analysis difficulty is increased. Meanwhile, the lack of control over the heating of the sample in the design of the heated sample leads to uncertainty in the magnitude of the heating of the sample.
Therefore, the conventional testing device cannot control the temperature, which results in a technical problem of low testing accuracy, and thus it can be seen that the problem to be solved in the art is to provide a testing device capable of controlling the temperature and high in testing accuracy.
Disclosure of utility model
Aiming at the technical problem of low testing accuracy with the existing testing device, the utility model aims to provide the surface temperature rising capability verification testing device, which can control the temperature of a heating source by adopting a thermosensitive assembly as the heating source and combining the heating source with a temperature controller, thereby realizing capability verification testing with high accuracy.
In order to achieve the above purpose, the surface temperature rise capability verification testing device provided by the utility model comprises a heat conduction component, a temperature controller, a temperature sensor, a heating body and a direct current adjustable power supply, wherein the heat conduction component comprises a heating layer, a first temperature testing layer and a second temperature testing layer, the first temperature testing layer and the second temperature testing layer are respectively and fixedly arranged on two end surfaces of the heating layer, the heating body is inlaid and arranged at the central position of the heating layer, a first test point and a plurality of second test points are arranged on the heating layer, the temperature sensor is arranged in the heating layer, the temperature sensor is connected with the temperature controller through a signal wire, and the temperature controller is connected with the heating body through the direct current adjustable power supply.
Further, the heating element is a PTC thermosensitive assembly.
Further, the first temperature test layer and the second temperature test layer have the same thickness and different materials.
Further, the heating layer is an aluminum layer.
Further, the temperature sensor is a thermocouple.
Further, a heat conducting paste is arranged between the heating layer and the first temperature testing layer and between the heating layer and the second temperature testing layer.
Further, the first test points are arranged at the center of the surface of the heating layer, and the second test points are equidistantly distributed on the surface of the heating layer along the first test points.
According to the surface temperature rise capability verification testing device provided by the utility model, the heat-sensitive component is adopted as the heat source, the heat source is combined with the temperature controller, so that the temperature of the heat source can be controlled, thereby realizing high-accuracy capability verification testing.
Drawings
The utility model is further described below with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of an explosion structure of a heat conduction assembly of a surface temperature rise capability verification test device provided by the utility model;
Fig. 2 is a schematic diagram of the overall structure of a heat conduction assembly of the surface temperature rise capability verification test device provided by the utility model;
fig. 3 is a schematic structural diagram of a heating layer in the surface temperature rising capability verification test device provided by the utility model.
Fig. 4 is a schematic diagram of a temperature control process of the surface temperature rise capability verification test device provided by the utility model.
Illustration of:
The device comprises a heat conduction assembly 100, a heating body 200, a temperature sensor 300, a temperature controller 400 and a direct current adjustable power supply 500;
A heating layer 110, a first temperature test layer 120, a second temperature test layer 130, a first test point 140, a second test point 150, a wire 170, a signal wire 180, and a connection terminal 190.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
Based on the technical problem that the existing testing device is low in testing accuracy, the utility model provides the surface temperature rising capability verification testing device, and the temperature of the heating source can be controlled by combining the heating source and the temperature controller by adopting the thermosensitive assembly as the heating source, so that the capability verification testing with high accuracy is realized.
Referring to fig. 1, fig. 2 and fig. 4, a schematic structural diagram of a surface temperature rising capability verification test device provided by the utility model is shown.
According to the illustration, the surface temperature rise capability verification test device provided by the utility model comprises five components of a heat conduction assembly 100, a heating body 200, a temperature sensor 300, a temperature controller 400 and a direct current adjustable power supply 500.
The heat conduction assembly 100 comprises a heating layer 110, a first temperature testing layer 120, a second temperature testing layer 130, wherein the first temperature testing layer 120 and the second temperature testing layer 130 are respectively and fixedly arranged on two end faces of the heating layer 110, a heating body 200 is arranged on the heating layer 110, a temperature sensor 300 is arranged in the heating layer 110, the temperature sensor 300 is connected with a temperature controller 400 through a signal wire, the temperature controller 400 is connected with the heating body 200 through a direct current adjustable power supply 500, the direct current adjustable power supply 500 is used for transmitting regulated current to the heating body 200 through regulating the input voltage of the temperature controller 400, and therefore the temperature of the heating body 200 is changed.
The heat conduction assembly 100 is of a three-layer structure as a whole, the middle layer is a heating layer 110, and the heating layer 110 is preferably an aluminum layer in order to facilitate processing and heat conduction.
The heating body 200 is arranged on the heating layer 110 and used as a heat source to provide heat for the test layer, wherein the heating body 200 preferably adopts a PTC thermosensitive assembly, the PTC thermosensitive assembly has high heat conduction efficiency and temperature coefficient effect, and when the voltage is constant, the self-adaptive temperature control can be well realized.
The heating body 200 is specifically embedded in the central position of the heating layer 110, and conducts heat outwards by using the central position as a heat source.
The surface of the heating layer 110 is respectively provided with a first test point 140 and a plurality of second test points 150, wherein the first test point 140 is positioned at the central position of the heating layer 110, the arrangement at the central position can ensure the maximum temperature during testing, and the plurality of second test points 150 are distributed along the first test point 140 at equal intervals, so that the arrangement is favorable for comparison during testing.
Further, the upper and lower layers are a first temperature testing layer 120 and a second temperature testing layer 130, the first temperature testing layer 120 is disposed on one end surface of the heating layer 110, and the second temperature testing layer 130 is disposed on the other end surface of the heating layer 110.
In order to improve the applicability of the testing device, the first temperature testing layer 120 and the second temperature testing layer 130 have the same thickness, but are made of different materials, and can be used as a heat conduction characteristic test of different materials to analyze temperature test deviations of different materials.
By way of example, the first temperature test layer 120 and the second temperature test layer 130 of this embodiment preferably have a thickness of 2mm, the first temperature test layer 120 preferably employs a copper layer, and the second temperature test layer 130 preferably employs a PVC layer, which can be used to verify the effect of measuring temperature on different materials.
The material and thickness of the first temperature testing layer 120 and the second temperature testing layer 130 are not limited in this scheme, and may be determined according to practical requirements, and only the first temperature testing layer 120 and the second temperature testing layer 130 have to be the same in thickness and different in material.
In order to further enhance the heat conducting effect, a heat conducting paste is smeared between the heating layer 110 and the first temperature testing layer 120 and between the second temperature testing layer 130, the heat conducting paste is smeared between the heating layer 110 and the upper and lower temperature testing layers, and then the heating layer 110, the first temperature testing layer 120 and the second temperature testing layer 130 are tightly pressed and fixed in a bolt fastening mode, so that a whole is formed, and heat conduction is greatly improved.
The fixing manner of the first temperature testing layer 120 and the second temperature testing layer 130 of the heating layer 110 is not limited, and the fixing manner can be used according to practical requirements, and only the fixing arrangement of the first temperature testing layer 120 and the second temperature testing layer 130 on two end surfaces of the heating layer 110 is required.
The temperature sensor 300 is disposed in the heating layer 110, and the temperature sensor 300 is a high-precision thermocouple and is used for collecting temperature, and is connected with the temperature controller 400 through a circuit, so that the collected temperature is converted into a signal and is transmitted to the temperature controller 400 through the circuit, which is a well-known technology in the field, and details are not repeated here.
The specific configuration of the temperature sensor 300 is not limited here, and may be specifically determined according to actual needs.
The temperature controller 400 is composed of a circuit board, a temperature controller panel, a chip, etc. for controlling the temperature of the heating body 200, which is a technology well known to those skilled in the art, and will not be described herein.
The specific configuration of the temperature controller 400 is not limited here, and may be specifically determined according to actual needs.
Further, the temperature controller 400 is connected with the temperature sensor 300 in the heating layer 110 through a line, the temperature controller 400 compares the temperature acquired by the temperature sensor 300 with the temperature acquired by the initial set temperature, and changes the temperature of the heating element 200 by changing the voltage, thereby realizing the control of the temperature of the heating element 200 and ensuring the accuracy of the test.
The direct current adjustable power supply 500 is externally connected with a power supply, provides a working power supply for the whole testing device, is connected with the heating body 200 and the temperature controller 400 through circuits respectively, can change voltage according to signals of the temperature controller 400, and is transmitted to the heating body 200 through the circuits, so that the temperature of the heating body 200 is increased or reduced.
In order to ensure that the test process is not conducted by the outside, the test device may be mounted on a support.
In some embodiments of the utility model, the bracket is composed of a base, an installation rod and a hanging rod, and the hanging rod can move up and down so as to adjust the hanging height of the testing device, and a windproof enclosure can be further arranged around the bracket, so that the testing process is effectively prevented from being influenced by the outside.
As shown in fig. 3, in some embodiments of the present utility model, the testing device is provided with two wires 170 and one signal wire 180, in order to improve the convenience of wiring, the two wires 170 are connected with the wiring terminal 190, so that the connection is more convenient, the connection and disconnection can be performed at any time, and the operation convenience is greatly improved.
One end of the signal line 180 is connected with the temperature sensor 300, and the other end is connected with the temperature controller 400, and the temperature sensor 300 collects temperature and converts the temperature into a signal to be transmitted to the temperature controller 400 through the signal line 180.
One end of each of the two wires 170 is connected to the heating element 200, and the other end is connected to the dc adjustable power supply 500 via the connection terminal 190.
The direct current adjustable power supply 500 is connected with the heating body 200 through a wire 170, and the direct current adjustable power supply 500 transmits the adjusted voltage to the heating body 200 through the wire 170.
The temperature controller 400 is connected with the direct current adjustable power supply 500 through a circuit, performs comparison processing according to the temperature signal acquired by the temperature sensor 300, and then sends a corresponding signal to the direct current adjustable power supply 500, and the direct current adjustable power supply 500 changes voltage according to the signal and transmits the voltage to the heating element 200, thereby controlling the temperature of the heating element 200.
Firstly, the temperature to be tested is set on the temperature controller 400, and the temperature sensor 300 converts the temperature into a signal in real time and transmits the signal to the temperature controller 400, the temperature controller 400 generates a corresponding signal according to the deviation of the actual temperature and the set temperature and transmits the signal to the direct current adjustable power supply 500, the direct current adjustable power supply 500 adjusts the voltage according to the signal, the adjusted voltage is transmitted to the heating element 200, and the temperature of the heating element 200 is changed, so that the temperature of the heating element 200 is controlled.
By way of example only, and not by way of limitation, the specific configuration of the present solution is that the temperature sensor 300 converts the temperature signal into a 4-20mA current signal, and the current signal passes through the temperature controller 400, and compares with a temperature setting value in the temperature controller 400, and when the current signal is lower than the setting value, the heating body 200 is allowed to continue heating; when the temperature is higher than the set value, outputting a direct current power supply adjusting signal to reduce the output voltage of the direct current adjustable power supply 500 by 0.5V, thereby reducing the temperature of the heating body 200; when the temperature is detected to be lower than the set value, the output of the direct current power supply adjusting signal can be controlled to be output, and the output voltage of the direct current adjustable power supply 500 is increased by 0.5V, so that the temperature of the heating body 200 is increased, the temperature control is realized, and the testing accuracy of the testing device can be greatly improved.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a surface temperature rise ability verification testing arrangement, its characterized in that includes heat conduction subassembly, temperature controller, temperature sensor, heat-generating body, direct current adjustable power supply, heat conduction subassembly includes the zone of heating, first temperature test layer and second temperature test layer are fixed respectively and are set up at the zone of heating both ends face, the heat-generating body inlays the setting in zone of heating central point and put, be equipped with first test point and a plurality of second test point on the zone of heating, temperature sensor sets up in the zone of heating, temperature sensor passes through the signal line and is connected with temperature controller, temperature controller passes through direct current adjustable power supply and is connected with the heat-generating body.
2. The surface temperature rise capability verification test device according to claim 1, wherein the heating element is a PTC thermal sensitive component.
3. The surface temperature rise capability verification test device according to claim 1, wherein the first temperature test layer and the second temperature test layer have the same thickness and different materials.
4. The surface temperature rise capability verification test device of claim 1, wherein the heating layer is an aluminum layer.
5. The surface temperature rise capability verification test device of claim 1, wherein the temperature sensor is a thermocouple.
6. The surface temperature rise capability verification test device according to claim 1, wherein a heat conducting paste is arranged between the heating layer and the first temperature test layer and the second temperature test layer.
7. The surface temperature rise capability verification test device according to claim 1, wherein the first test points are arranged at the very center of the surface of the heating layer, and the plurality of second test points are equidistantly distributed on the surface of the heating layer along the first test points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293489.3U CN220854713U (en) | 2023-08-25 | 2023-08-25 | Surface temperature rising capability verification testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293489.3U CN220854713U (en) | 2023-08-25 | 2023-08-25 | Surface temperature rising capability verification testing device |
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| Publication Number | Publication Date |
|---|---|
| CN220854713U true CN220854713U (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322293489.3U Active CN220854713U (en) | 2023-08-25 | 2023-08-25 | Surface temperature rising capability verification testing device |
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| CN (1) | CN220854713U (en) |
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2023
- 2023-08-25 CN CN202322293489.3U patent/CN220854713U/en active Active
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