CN210922865U - Universal electric power fitting temperature measuring clamp - Google Patents
Universal electric power fitting temperature measuring clamp Download PDFInfo
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- CN210922865U CN210922865U CN201922356916.1U CN201922356916U CN210922865U CN 210922865 U CN210922865 U CN 210922865U CN 201922356916 U CN201922356916 U CN 201922356916U CN 210922865 U CN210922865 U CN 210922865U
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Abstract
A universal electric power fitting temperature measuring clamp is clamped on a high-voltage wire in a butt-clamping mode and comprises two clamping blocks arranged on two sides of the high-voltage wire; the clamping block is provided with a wire clamping groove, a heat conducting plate which is in contact with the high-voltage wire and conducts heat is arranged in the wire clamping groove, and a temperature sensor is arranged on the heat conducting plate; the clamping block is also provided with a bolt connecting hole for butt clamping. The utility model discloses continue to use original electric power fitting, make original electric power fitting have the temperature measurement function, the input cost is little, do not influence normal power supply. The utility model discloses a three kinds of clamp splice can be implemented and three kinds are to pressing from both sides the combination form, the temperature measurement of adaptable different specification shape electric power fitting. Therefore, only two clamping blocks need to be produced in batch, and the temperature measurement of most electric power fittings can be met. The utility model discloses temperature sensor's redundant design has reduced the maintenance cost.
Description
Technical Field
The utility model belongs to the technical field of the electric power technique and specifically relates to a general electric power fitting temperature measurement presss from both sides.
Background
China has wide breadth, correspondingly, the coverage area of a power grid is also very wide, and the difficulty in guaranteeing the power utilization is also very high. The problem of contact resistance between the electric power fittings and the power transmission and distribution line is more prominent. When the power transmission and distribution line is connected with the electric power fitting, contact resistance appears, the contact is good, the contact resistance is small, and the influence on the line is small; if the connection is not firm or the contact of the contact is poor due to other reasons, the contact resistance is large, so that heat is generated, the oxidation of a contact surface is aggravated, the contact resistance is continuously increased, the heat is more intense, the temperature is continuously increased, vicious circle is caused, and the metal of the connection point is discolored and even melted.
In the latest technology, temperature data is acquired by a temperature sensor arranged on an electric power fitting, and the data is transmitted to a monitoring host (data concentrator) on a tower in a wireless communication mode to process and analyze the data. The monitoring host on each tower is connected with a monitoring center arranged in a power supply company or each substation, relevant control instructions are sent to the monitoring host through a GPRS wireless network according to actual needs, and the temperature condition of each power transmission line is judged by means of a background analysis program according to received data information.
But current electric power fitting does not install temperature sensor's structure additional, and current electric power fitting is various moreover, and the same model also has the polytype, consequently hardly unifies temperature sensor's additional structure. If the power fittings having the temperature sensor structure are replaced entirely, the cost thereof is undoubtedly enormous.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough in the background art, the utility model discloses a general electric power fitting temperature measurement presss from both sides, its aim at: the utility model provides a general electric power fitting temperature measurement presss from both sides, continues to use original electric power fitting, makes original electric power fitting have the temperature measurement function.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
a universal electric power fitting temperature measuring clamp is clamped on a high-voltage wire in a butt-clamping mode and comprises two clamping blocks arranged on two sides of the high-voltage wire; the clamping block is provided with a wire clamping groove, a heat conducting plate which is in contact with the high-voltage wire and conducts heat is arranged in the wire clamping groove, and a temperature sensor is arranged on the heat conducting plate; the clamping block is also provided with a bolt connecting hole for butt clamping.
According to the technical scheme, a swing rod is hinged to one clamping block, a heat conduction swing block which is in contact with the electric power fitting for heat conduction is hinged to the free end of the swing rod, and a temperature sensor is arranged on the heat conduction swing block; and a pressing piece used for keeping the heat-conducting swinging block in pressure contact with the electric power fitting is also arranged on the clamping block.
According to the technical scheme, the two clamping blocks are hinged with swing rods, heat conduction swing blocks which are in contact with the electric power fittings for heat conduction are hinged to the free ends of the swing rods, and temperature sensors are arranged on the heat conduction swing blocks; and a pressing piece used for keeping the heat-conducting swinging block in pressure contact with the electric power fitting is also arranged on the clamping block.
The technical scheme is further improved, and the swing rod is provided with a straight notch; the pressing piece comprises a screw rod with a rotating shaft at one end, the rotating shaft end of the screw rod is hinged to the clamping block, a nut is screwed at the threaded end of the screw rod, the screw rod penetrates through a straight notch of the swing rod and presses the swing rod through the nut, and the heat conduction swing block is in pressure contact with the electric power fitting.
Further improve technical scheme, the nut compresses tightly the pendulum rod through the spring.
The technical scheme is further improved, and the temperature sensor is a thermal resistance temperature sensor.
Owing to adopt above-mentioned technical scheme, compare the background art, the utility model discloses following beneficial effect has:
the utility model discloses continue to use original electric power fitting, make original electric power fitting have the temperature measurement function, the input cost is little, do not influence normal power supply.
The utility model discloses a three kinds of clamp splice can be implemented and three kinds are to pressing from both sides the combination form, the temperature measurement of adaptable different specification shape electric power fitting. Therefore, only two clamping blocks need to be produced in batch, and the temperature measurement of most electric power fittings can be met.
The utility model discloses temperature sensor's redundant design has reduced the maintenance cost.
Drawings
Fig. 1 to 4 are schematic structural views of the present invention in example 1.
Fig. 5 is a schematic structural view of the present invention in embodiment 2.
Fig. 6 is a schematic structural view of the present invention in embodiment 3.
In the figure: 1. a clamping block A; 2. a clamping block B; 21. a swing rod; 22. a heat-conducting swinging block; 3. a high-voltage wire; 4. a heat conducting plate; 5. a temperature sensor; 6. an electric power fitting; 7. a compression member; 71. a screw; 72. a nut; 73. a spring.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
Example 1:
a universal electric power fitting temperature measuring clamp is oppositely clamped on a high-voltage electric wire 3 as shown in figure 1, and is mainly formed by connecting clamping blocks A1 and B2 which are arranged on two sides of the high-voltage electric wire 3 through a bolt and nut connecting pair clamp.
As shown in fig. 2, each of the clamping blocks a1 and B2 has a wire clamping groove, a heat conducting plate 4 in contact with the high-voltage wire 3 for conducting heat is arranged in the wire clamping groove, and a temperature sensor 5 is arranged on the heat conducting plate 4; the clamping block A1 and the clamping block B2 are both provided with bolt connecting holes for butt clamping.
As shown in fig. 3, a swing link 21 is further hinged to the clamping block B2, and the swing link 21 is provided with a straight notch. A heat conduction swinging block 22 which is in contact with the electric power fitting 6 for heat conduction is hinged to the free end of the swinging rod 21, and a temperature sensor 5 is arranged on the heat conduction swinging block 22; the clamp block B2 is also provided with a clamp 7 for holding the heat-conductive swing block 22 in pressure contact with the power fittings 6.
The pressing piece 7 comprises a screw rod 71 with a rotating shaft at one end, and the rotating shaft end of the screw rod 71 is hinged with an open slot on the clamping block B2. The threaded end of the screw 71 is screwed with a nut 72, the screw 71 penetrates through the straight slot of the swing rod 21, and the swing rod 21 is pressed through the nut 72 and a spring 73, so that the heat conduction swing block 22 is in pressure contact with the electric power fitting 6. When the high-voltage electric wire 3 swings with the electric power fitting 6, the elastic force of the spring 73 can always keep the heat-conducting swing block 22 in contact with the electric power fitting 6.
As shown in fig. 4, the electric power fittings 6 are various in kind. Some of the electric power fittings can be exposed to the connection part with the high-voltage electric wire 3, and some of the electric power fittings cannot be exposed to the connection part, but the electric power fittings 6 have the high-voltage electric wires 3 passing in and out at both ends. Therefore, the utility model discloses in to pressing from both sides on the high tension line 3 of 6 wherein one ends of electric power fitting to keep pressure contact through heat conduction pendulum block 22 and electric power fitting 6, be used for perception electric power fitting 6's temperature, thereby judge whether too big with high tension line 3's contact resistance electric power fitting 6. The clamping block A1 and the clamping block B2 are clamped with the high-voltage wire 3 in a butt-joint mode, a rotation degree of freedom is formed around the high-voltage wire 3, and a translation degree of freedom is formed along the direction of the high-voltage wire 3; the swing rod 21 and the heat conduction swing block 22 respectively have one degree of freedom of rotation, and the four degrees of freedom of rotation can enable the heat conduction swing block 22 to be in contact with most parts of the electric power fitting 6, so that a better measuring point can be selected.
The temperature sensor 5 is a thermal resistance temperature sensor. The thermal resistance is a characteristic in which temperature measurement is performed based on a thermal effect of a resistor, that is, a resistance value of the resistor changes with a change in temperature. Therefore, the temperature can be measured only by measuring the resistance change of the temperature sensing thermal resistor. At present, the metal thermal resistor and the semiconductor thermistor are mainly used. The thermal resistance temperature sensors are inexpensive, and in this embodiment, the thermal resistance temperature sensors are provided in the clamp block a1, the clamp block B2, and the heat conducting pendulum block 22 for redundancy. When one thermal resistance temperature sensor is damaged, wrong temperature information is reported, and whether the high-voltage wire 3 is normal or not can be judged by referring to the other two thermal resistance temperature sensors. In addition, if only one thermal resistance temperature sensor is provided, the cost for maintenance is also unacceptable when it is damaged.
Example 2:
unlike embodiment 1, the universal clamp for measuring the temperature of the power fitting according to embodiment 1 is mainly formed by connecting two clamp blocks a1 arranged on both sides of a high-voltage electric wire 3 through a bolt-nut connection pair clamp as shown in fig. 5. This is suitable for the case where the outer surface of the power fitting 6 is provided with an insulating and heat-insulating cover, and the heat-conductive pendulum block 22 cannot be used. In order to save cost, the two clamp blocks a1 are clamped at one end of the power fitting 6, and sense the temperature of the high-voltage electric wire 3, so as to estimate the contact condition of the power fitting 6 and the high-voltage electric wire 3.
Example 3:
unlike embodiment 2, the universal clamp for measuring the temperature of the power fitting according to embodiment 2 is mainly formed by connecting two clamp blocks B2 arranged on both sides of the high-voltage wire 3 through a bolt-nut connection pair clamp as shown in fig. 6. This is suitable for the case where the external shape of the electric power fittings 6 is complicated, or the temperature measurement is simultaneously performed on two electric power fittings 6 that are close to each other.
As can be seen from the above embodiments, the utility model discloses a three kinds of combinations can be implemented to clamp splice A1, clamp splice B2, can adapt to the temperature measurement of different specification shape electric power fittings 6. Therefore, only two types of products, namely the clamp block A1 and the clamp block B2, need to be produced in batch, and temperature measurement of most electric power fittings 6 can be met.
The part of the utility model not detailed is prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a general electric power fitting temperature measurement presss from both sides to pressing from both sides on high-voltage electric wire, characterized by: comprises two clamping blocks arranged at two sides of a high-voltage wire; the clamping block is provided with a wire clamping groove, a heat conducting plate which is in contact with the high-voltage wire and conducts heat is arranged in the wire clamping groove, and a temperature sensor is arranged on the heat conducting plate; the clamping block is also provided with a bolt connecting hole for butt clamping.
2. The universal temperature measuring clamp for electric power fittings of claim 1, wherein: a swing rod is hinged on one clamping block, a heat conduction swing block which is in contact with the electric power fitting for heat conduction is hinged at the free end of the swing rod, and a temperature sensor is arranged on the heat conduction swing block; and a pressing piece used for keeping the heat-conducting swinging block in pressure contact with the electric power fitting is also arranged on the clamping block.
3. The universal temperature measuring clamp for electric power fittings of claim 1, wherein: the two clamping blocks are hinged with swing rods, the free ends of the swing rods are hinged with heat conduction swing blocks which are in contact with the electric power fittings for heat conduction, and the heat conduction swing blocks are provided with temperature sensors; and a pressing piece used for keeping the heat-conducting swinging block in pressure contact with the electric power fitting is also arranged on the clamping block.
4. The universal temperature measuring clamp for electric power fittings according to claim 2 or 3, wherein: the swing rod is provided with a straight notch; the pressing piece comprises a screw rod with a rotating shaft at one end, the rotating shaft end of the screw rod is hinged to the clamping block, a nut is screwed at the threaded end of the screw rod, the screw rod penetrates through a straight notch of the swing rod and presses the swing rod through the nut, and the heat conduction swing block is in pressure contact with the electric power fitting.
5. The universal temperature measuring clamp for electric power fittings of claim 4, wherein: the nut compresses the swing rod through a spring.
6. The universal temperature measuring clamp for electric power fittings of claim 1, wherein: the temperature sensor is a thermal resistance temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922356916.1U CN210922865U (en) | 2019-12-25 | 2019-12-25 | Universal electric power fitting temperature measuring clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922356916.1U CN210922865U (en) | 2019-12-25 | 2019-12-25 | Universal electric power fitting temperature measuring clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210922865U true CN210922865U (en) | 2020-07-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922356916.1U Active CN210922865U (en) | 2019-12-25 | 2019-12-25 | Universal electric power fitting temperature measuring clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210922865U (en) |
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2019
- 2019-12-25 CN CN201922356916.1U patent/CN210922865U/en active Active
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