CN212059159U - Electric insulation temperature measuring resistor - Google Patents
Electric insulation temperature measuring resistor Download PDFInfo
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- CN212059159U CN212059159U CN202020980711.0U CN202020980711U CN212059159U CN 212059159 U CN212059159 U CN 212059159U CN 202020980711 U CN202020980711 U CN 202020980711U CN 212059159 U CN212059159 U CN 212059159U
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- pipe
- temperature measuring
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Abstract
The utility model belongs to the technical field of electrical equipment, in particular to an electrical insulation temperature measuring resistor, which comprises a junction box, wherein a wire holder is fixed in an inner cavity of the junction box, the top of the junction box is in threaded connection with a top cover, the left side wall of the junction box is penetrated and clamped with a wire connecting port, a wire connecting terminal is fixedly arranged on the wire holder and is electrically connected with a first power contact block, the bottom inner cavity of the wire holder is in threaded connection with a connecting pipe, a second power contact block is clamped in the inner cavity of the connecting pipe, a protective pipe is inserted into the bottom of the inner cavity of the connecting pipe, a protective pipe cover plate is clamped in the inner cavity at the top of the protective pipe, a damping spring is arranged between the second power contact block and the protective pipe cover plate, the bottom of the second power contact block is fixedly connected with an electrical connecting wire through the wire holder, the other end of, the device can avoid the influence on the temperature measuring resistor caused by vibration.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment, concretely relates to electrical insulation temperature measuring resistor.
Background
The thermal resistor is the most commonly used temperature detector in the middle and low temperature region, can be used for detecting the temperature, the thermal resistor temperature measurement is based on the characteristic that the resistance value of a metal conductor increases along with the increase of the temperature to carry out the temperature measurement, the main characteristics of the thermal resistor are high measurement precision and stable performance, wherein, the measurement precision of the platinum thermal resistor is the highest, the thermal resistor is not only widely applied to the industrial temperature measurement, but also made into a standard reference instrument, the thermal resistor is mostly made of pure metal materials, the most commonly used at present are platinum and copper, and in addition, the thermal resistor is made of materials such as nickel, manganese, rhodium and the like. The metal thermal resistor is made of a plurality of commonly used temperature sensing materials, and the most commonly used temperature sensing material is a platinum wire. The metal thermal resistance material for industrial measurement includes copper, nickel, iron-nickel, etc. in addition to platinum wire.
Compared with the prior art the problem that exists:
the inside of electrical equipment often gives out a large amount of heats, consequently need carry out the temperature measurement to electrical equipment's inside, can shake in electrical equipment's the daily operation, and current electrical insulation temperature measurement electrical impedance shock property is not good, easily receives the influence of vibrations to influence temperature measurement effect and life.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides an electrical insulation temperature measuring resistor has and avoids causing the characteristics of influence to temperature measuring resistor because of vibrations through damping spring and the cooperation of quartz sand filling layer.
In order to achieve the above object, the utility model provides a following technical scheme: an electrical insulation temperature measuring resistor comprises a junction box, wherein a wire holder is fixed in an inner cavity of the junction box, the top of the junction box is in threaded connection with a top cover, a wire connection port penetrates through and is clamped on the left side wall of the junction box, a wire connecting terminal is fixedly arranged on the wire holder and is electrically connected with a first power supply contact block, a bottom inner cavity of the junction box is in threaded connection with a connecting pipe, a second power supply contact block is clamped in the inner cavity of the connecting pipe, a protection pipe is inserted in the bottom of the inner cavity of the connecting pipe, a protection pipe cover plate is clamped in the top inner cavity of the protection pipe, a damping spring is arranged between the second power supply contact block and the protection pipe cover plate, the bottom of the second power supply contact block is fixedly connected with an electrical connecting wire through the wire holder, the other end of the electrical connecting wire penetrates through the protection pipe cover plate to be connected with a, the protection tube covers the electric connecting wire, the temperature sensing element and the insulating tube.
Preferably, the bottom of connecting pipe is equipped with the limiting plate, the top outer wall of protection tube is equipped with the stopper.
Preferably, a handle for rotation is arranged at the top of the top cover, and a heat dissipation hole is formed through the top of the top cover.
Preferably, the gap in the protective tube is filled with a quartz sand filling layer.
Preferably, the right side wall of the junction box is integrally formed with a mounting plate, and a threaded hole is penetrated between the left wall and the right wall of the mounting plate.
Preferably, the length of the portion of the electrical connection line between the second power supply contact block and the protective tube cover plate is greater than the spacing between the second power supply contact block and the protective tube cover plate.
Compared with the prior art, the beneficial effects of the utility model are that: the device is provided with a first power supply contact block, a connecting pipe, a second power supply contact block, a protective pipe cover plate, a damping spring, an electric connecting wire, a temperature sensing element, an insulating pipe and a quartz sand filling layer, wherein a wire holder is fixed in an inner cavity of the wire holder, the top of the wire holder is in threaded connection with a top cover, a wire connection port is penetrated through and clamped on the left side wall of the wire holder, a wiring terminal is fixed on the wire holder and electrically connected with the first power supply contact block, the inner cavity at the bottom of the wire holder is in threaded connection with the connecting pipe, the inner cavity of the connecting pipe is clamped with the second power supply contact block, the protective pipe is inserted at the bottom of the inner cavity of the connecting pipe, the protective pipe cover plate is clamped in the inner cavity at the top of the protective pipe, the damping spring is arranged between the second power supply contact block and the protective pipe cover plate, when the electrical equipment vibrates, the connecting pipe and the protective pipe stretch and retract through the elasticity of the damping spring and are matched with the filling of the quartz sand filling layer, so that the aim of damping is fulfilled, the influence on the temperature measuring resistor caused by vibration is avoided, and the service life is prolonged; when the maintenance is changed to the temperature-sensing element to needs, with the connecting pipe together with the protection tube through the screw thread screw off, can make first power contact piece and second power contact piece break away from the contact outage, connecting pipe and protection tube and the device wherein that can directly change the new, convenient and fast.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of the present invention;
fig. 2 is a left side view structure diagram of the present invention.
In the figure: 100 junction boxes, 110 junction bases, 111 junction terminals, 120 top covers, 121 rotating handles, 130 junction ports, 140 first power supply contact blocks, 200 connecting pipes, 210 second power supply contact blocks, 300 protective pipes, 310 protective pipe cover plates, 400 damping springs, 500 electric connecting wires, 600 temperature sensing elements, 700 insulating pipes, 800 quartz sand filling layers and 900 mounting plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-2, the present invention provides the following technical solutions: an electrical insulation temperature measuring resistor comprises a junction box 100, wherein a wire holder 110 is fixed in an inner cavity of the junction box 100, the top of the junction box 100 is in threaded connection with a top cover 120, a wire connection port 130 penetrates through and is clamped on the left side wall of the junction box 100, a wire connecting terminal 111 is fixedly arranged on the wire holder 110, the wire connecting terminal 111 is electrically connected with a first power supply contact block 140, a bottom inner cavity of the wire holder 110 is in threaded connection with a connecting pipe 200, a second power supply contact block 210 is clamped in an inner cavity of the connecting pipe 200, a protective pipe 300 is inserted at the bottom of the inner cavity of the connecting pipe 200, a protective pipe cover plate 310 is clamped in a top inner cavity of the protective pipe 300, a damping spring 400 is arranged between the second power supply contact block 210 and the protective pipe cover plate 310, the bottom of the second power supply contact block 210 is fixedly connected with an electrical connecting wire 500 through the wire holder, and the other end, the insulating tube 700 is sleeved outside the middle section of the electric connection wire 500 in the protective tube 300, and the protective tube 300 covers the electric connection wire 500, the temperature sensing element 600 and the insulating tube 700.
In this embodiment: the inner cavity of the junction box 100 is fixed with a wire holder 110, the wire holder 110 is used for connecting a power line, the top of the junction box 100 is in threaded connection with a top cover 120, the top cover 120 is opened to facilitate the wiring action of the wire holder 110, the left side wall of the junction box 100 is penetrated and clamped with a wiring port 130, the wiring port 130 is used for leading out the power line connected with the wire holder 110, the wire holder 110 is fixedly provided with a wiring terminal 111, the wiring terminal 111 is electrically connected with a first power contact block 140, the bottom inner cavity of the wire holder 110 is in threaded connection with a connecting pipe 200, the inner cavity of the connecting pipe 200 is clamped with a second power contact block 210, when the connecting pipe 200 is in threaded connection with the junction box 100, the first power contact block 140 and the second power contact block 210 are electrified, the bottom of the inner cavity of the connecting pipe 200 is inserted with a protective pipe 300, the top inner cavity of the protective pipe 300 is clamped with, a damping spring 400 is arranged between the second power contact block 210 and the protective tube cover plate 310, when the electrical device vibrates, the connecting tube 200 and the protective tube 300 perform telescopic action through the elastic force of the damping spring 400 to absorb shock, the bottom of the second power contact block 210 is fixedly connected with the electric connecting wire 500 through a wire holder, the other end of the electric connecting wire 500 penetrates through the protective tube cover plate 310 to be connected with the temperature sensing element 600, the temperature sensing element 600 is made of platinum, the resistance value of the temperature sensing element 600 changes along with the change of the temperature, the measured temperature is obtained according to the resistance value, the insulating tube 700 is sleeved on the outer side of the middle section of the electric connecting wire 500 in the protective tube 300 and used for insulating the electric connecting wire 500 from the protective tube 300, and the protective tube 300 covers the electric connecting wire 500, the temperature sensing element 600 and the insulating tube 700 to protect the electric connecting wire 500, the temperature.
The bottom of connecting pipe 200 is equipped with the limiting plate, and the top outer wall of protection tube 300 is equipped with the stopper, avoids breaking away from between connecting pipe 200 and the protection tube 300.
The top of top cap 120 is equipped with the handle 121 for the rotation, and the handle 121 is convenient for the rotation to open the top cap for the rotation, and the top of top cap 120 has link up the louvre, and the louvre is used for dispelling the heat to terminal box 100 inside.
The gap in the protection tube 300 is filled with a quartz sand filling layer 800, the quartz sand is thin in texture and good in heat conduction and insulation performance, and the anti-seismic performance of the internal components of the protection tube 300 can be enhanced.
The mounting plate 900 is integrally formed on the right side wall of the junction box 100, a threaded hole is formed between the left and right walls of the mounting plate 900, and the mounting plate 900 is engaged with a self-tapping screw for fixing with an electrical device.
The length of the portion of the electrical connection wire 500 between the second power contact block 210 and the protective tube cover plate 310 is greater than the distance between the second power contact block 210 and the protective tube cover plate 310, so that the phenomenon that the electrical connection wire 500 is broken when the connection tube 200 and the protective tube 300 perform the telescopic action is avoided.
The working principle and the using process of the invention are as follows: install this device in electrical equipment's inside through mounting panel and self tapping screw cooperation, open top cap 120 of terminal box 100, with wire holder 110 switch-on circuit, and utilize wiring mouth 130 to walk the line, cover top cap 110 after the wiring finishes, the circular telegram between first power contact piece 140 and the second power contact piece 210 this moment, second power contact piece 210 passes through electric connecting wire 500 and temperature-sensing element 600 electric connection, temperature-sensing element 600 carries out the perception to the temperature in the electrical equipment, thereby change the resistance value through the change of temperature and draw temperature data. When the electric device vibrates, the connection pipe 200 and the protection pipe 300 extend and contract through the elastic force of the damping spring 400, and are matched with the filling of the quartz sand filling layer 800 to achieve the purpose of damping, when the temperature sensing element needs to be replaced and maintained, the connection pipe 200 and the protection pipe 300 are screwed down through threads, so that the first power supply contact block 140 and the second power supply contact block 210 can be separated from contact and power-off, and the connection pipe 200, the protection pipe 300 and devices therein can be directly replaced with new ones.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (6)
1. An electrical insulation temperature measuring resistor is characterized in that: the wire connecting box comprises a wire connecting box (100), wherein a wire holder (110) is fixed in an inner cavity of the wire connecting box (100), the top of the wire connecting box (100) is in threaded connection with a top cover (120), a wire connection port (130) penetrates through and is clamped on the left side wall of the wire connecting box (100), a wire connecting terminal (111) is fixedly arranged on the wire holder (110), the wire connecting terminal (111) is electrically connected with a first power supply contact block (140), the bottom inner cavity of the wire connecting seat (110) is in threaded connection with a connecting pipe (200), a second power supply contact block (210) is clamped in the inner cavity of the connecting pipe (200), a protective pipe (300) is inserted into the bottom of the inner cavity of the connecting pipe (200), a protective pipe cover plate (310) is clamped in the inner cavity of the top of the protective pipe (300), a damping spring (400) is arranged between the second power supply contact block (210) and the protective pipe cover plate (310), and the bottom of the second power, the other end of the electric connection wire (500) penetrates through the protective tube cover plate (310) to be connected with the temperature sensing element (600), the insulating tube (700) is sleeved on the outer side of the middle section of the electric connection wire (500) in the protective tube (300), and the protective tube (300) covers the outer portions of the electric connection wire (500), the temperature sensing element (600) and the insulating tube (700).
2. The electrically insulated temperature measuring resistor according to claim 1, wherein: the bottom of connecting pipe (200) is equipped with the limiting plate, the top outer wall of protection tube (300) is equipped with the stopper.
3. The electrically insulated temperature measuring resistor according to claim 1, wherein: the top of the top cover (120) is provided with a handle (121) for rotation, and a heat dissipation hole penetrates through the top of the top cover (120).
4. The electrically insulated temperature measuring resistor according to claim 1, wherein: and a quartz sand filling layer (800) is filled in a gap in the protection tube (300).
5. The electrically insulated temperature measuring resistor according to claim 1, wherein: the right side wall of the junction box (100) is integrally formed with a mounting plate (900), and a threaded hole penetrates through the left wall and the right wall of the mounting plate (900).
6. The electrically insulated temperature measuring resistor according to claim 1, wherein: the length of the part of the electric connection wire (500) between the second power supply contact block (210) and the protective tube cover plate (310) is larger than the distance between the second power supply contact block (210) and the protective tube cover plate (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020980711.0U CN212059159U (en) | 2020-06-02 | 2020-06-02 | Electric insulation temperature measuring resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020980711.0U CN212059159U (en) | 2020-06-02 | 2020-06-02 | Electric insulation temperature measuring resistor |
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| Publication Number | Publication Date |
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| CN212059159U true CN212059159U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020980711.0U Active CN212059159U (en) | 2020-06-02 | 2020-06-02 | Electric insulation temperature measuring resistor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252198A (en) * | 2021-07-07 | 2021-08-13 | 胜利油田东强机电设备制造有限公司 | Integrated temperature transmitter with cooling fin |
-
2020
- 2020-06-02 CN CN202020980711.0U patent/CN212059159U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252198A (en) * | 2021-07-07 | 2021-08-13 | 胜利油田东强机电设备制造有限公司 | Integrated temperature transmitter with cooling fin |
| CN113252198B (en) * | 2021-07-07 | 2021-09-14 | 胜利油田东强机电设备制造有限公司 | Integrated temperature transmitter with cooling fin |
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