CN211507546U - Electric contact arm with temperature measurement function - Google Patents

Abstract

The utility model relates to a power equipment technical field specifically indicates an electric power touches arm with temperature measurement function, including touching the arm body, the both ends of touching the arm body are equipped with the connecting hole respectively, it has a recess to inwards mill on the arm body to touch, temperature sensor has been placed in the recess, it is by insulating cover to touch arm body outer wall cladding. By adopting the technical scheme, the temperature sensor is arranged to be in reliable contact with the direct heat source of the contact arm body, so that the temperature can be measured accurately and quickly, information is transmitted to the acquisition system, the on-line monitoring and protection of the open-close system can be realized, the safety is greatly improved, and the practicability is higher; in addition, the insulating sleeve is arranged, so that electric arcs can be isolated, and potential safety hazards are greatly reduced.

Description

Electric contact arm with temperature measurement function

Technical Field

The utility model relates to an electrical equipment technical field specifically indicates an electric power touches arm with temperature measurement function.

Background

The electric contact arm is mainly used for a circuit breaker in a high-voltage environment. At present, in the long-term operation process of a medium-high voltage switch cabinet, the high-temperature abnormality of the switch cabinet can be caused by the abnormalities of short-circuit current, operation overload, electric arc impact, oxidation of through-flow metal contacts, poor contact and the like, and major accident potential is caused to the operation of equipment; in the acceptance standard of cubical switchboard, the temperature rise requirement of clear switch cabinet, because of the influence of present intelligent degree, the level that does not reach real time monitoring temporarily, and in the operation of cubical switchboard, appear because of the too high life who causes the cubical switchboard of temperature rise receives the influence. Carry out temperature detection to high tension switchgear, some producers have the mode that temperature sensor was binded through the outside at the part of cubical switchboard in the existing market, or gather the mode of local contact arm plum blossom contact piece, have influenced switch internal insulation problem on the one hand, because bind the in-process on the one hand, the contact is inseparable, and insecure causes the test deviation, or tests local contact piece, the unable complete state that embodies the major loop, the quick feedback test point actual conditions that can not be accurate. Among the power switch class system, the product can produce the heat in normal operating, switching system's temperature rise has relevant standard, heat that produces in the cubical switchboard surpasses the standard, power switch's insulating abnormity will be accelerated, the life-span reduces, cause the cubical switchboard accident, switching system requires to have the arc extinguishing simultaneously, break and bear the thunder and rush, performance such as overvoltage, and accompany high temperature at this in-process, if the cubical switchboard can not in time make the feedback, will accompany bigger risk, consequently need constantly strengthen the temperature real time monitoring to high voltage switch, treat to improve urgently.

However, in a high-voltage environment, a large amount of electric arcs are generated, which not only damages the power equipment, but also makes the temperature monitor unable to adapt to the environment and easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses according to prior art's is not enough, provides an electric power touches arm with temperature measurement function, can carry out real-time supervision to the temperature to reduce high voltage environment's risk.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the utility model provides an electric power touches arm with temperature measurement function, is including touching the arm body, the both ends that touch the arm body are equipped with the connecting hole respectively, it has a recess to mill inwards on the arm body to touch, temperature sensor has been placed in the recess, it is by insulating cover to touch arm body outer wall cladding.

Preferably, the temperature sensor is an RFID temperature tag.

Preferably, the insulating sleeve comprises an epoxy glue layer, an inner insulating layer and an outer insulating layer, the epoxy glue layer is coated on the outer surface of the contact arm body, the inner surface of the inner insulating layer and the outer surface of the epoxy glue layer are mutually adhered, and the outer insulating layer covers the outer side of the inner insulating layer.

Preferably, a hollow environment is formed between the outer insulating layer and the inner insulating layer, and an insulating support column is arranged between the outer wall of the inner insulating layer and the inner wall of the outer insulating layer.

Preferably, the outer wall of the contact arm body is provided with a plurality of guide inserting plates, and the guide inserting plates are wrapped in the insulating sleeve.

Preferably, the outer wall of the contact arm body is fixed with a grounding column, the grounding column is divided into two sections, and the two grounding columns are connected with each other through a flexible connecting piece.

The utility model has the following characteristics and beneficial effect:

by adopting the technical scheme, the temperature sensor is arranged to be in reliable contact with the direct heat source of the contact arm body, so that the temperature can be measured accurately and quickly, information is transmitted to the acquisition system, the on-line monitoring and protection of the open-close system can be realized, the safety is greatly improved, and the practicability is higher; in addition, the insulating sleeve is arranged, so that electric arcs can be isolated, and potential safety hazards are greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of a portion of the structure of fig. 1.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The utility model provides an electric power touches arm with temperature measurement function, as shown in figure 1 and figure 2, including touching arm body 4, the both ends of touching arm body 4 are equipped with the connecting hole respectively, it has a recess 2 to inwards mill on the arm body 4 to touch, temperature sensor 1 has been placed in the recess 2, it is by insulating cover 7 to touch the cladding of 4 outer walls of arm body. The temperature sensor 1 is an RFID temperature measurement label.

In the technical scheme, the RFID temperature measurement tag is used for monitoring in real time. The temperature sensor is in reliable contact with a direct heat source of the contact arm body, the temperature is measured accurately and quickly, information is transmitted to an acquisition system, the on-line monitoring and protection of an open system are realized, the safety is greatly improved, and the practicability is higher; in addition, the insulating sleeve is arranged, so that electric arcs can be isolated, and potential safety hazards are greatly reduced.

As can be understood, the RFID temperature measurement tag has wireless and passive monitoring characteristics, so that the RFID temperature measurement tag is not influenced by the outside in the monitoring process and does not need to be additionally provided with blocking equipment. Specifically, the RFID temperature measurement tag adopts an electronic tag chip with a frequency range of 840MHz-960 MHz. The electronic tag chip is internally provided with a 512-bit data storage unit.

It can be understood that the temperature measurement tag comprises an RFID tag antenna and an RFID tag chip, the RFID tag antenna comprises a substrate and a copper sheet, the copper sheet is attached to the surface of the substrate, and the RFID tag chip is connected with the capacitive coupling poles at the two ends of the RFID tag antenna respectively.

It can be understood that the metal resistance of the RFID tag antenna is the same, the RFID tag antenna forms a radiation part through a copper sheet on a substrate, a metal object is used as a reflection part, and energy radiated by the radiation part is reflected by the reflection part and then superposed, so that the gain of the RFID tag antenna is improved, and the identification distance of the RFID tag antenna is greatly increased. When the RFID tag antenna is attached to a metal object (such as a conductive part), the reflection part can shield the influence of a metal part on one side of the reflection part, so that the identification distance is further increased, and the metal resistance effect is achieved.

The RFID reader-writer is externally connected with a reader-writer antenna, the antenna transmits radio frequency signals to supply power to the RFID temperature measuring tag and transmit data, so that the temperature of the RFID temperature measuring tag is read, and the read temperature is the temperature inside the cable joint because the RFID temperature measuring tag is arranged on the insulating plug. Due to the fact that the RFID temperature measurement tag 1 is in a radio frequency technology and does not have a built-in power supply, passive and wireless temperature measurement can be achieved, and theoretically, the RFID temperature measurement tag can be continuously used for more than 10 years. The requirement that products added in a ring main unit, a high-voltage cable branch box and the like for power application cannot be electrified and are not convenient to directly contact for temperature measurement is met.

Among the above-mentioned technical scheme, it is various and low in price to make raw materials, and is not fragile, simple to operate, and the temperature toleration is strong, can carry out real-time supervision, easily promotes, need not to provide external power source, and signal transmission is not disturbed, greatly reduced the potential safety hazard that high voltage heavy current environment exists.

In addition, the RFID tag chip is internally provided with a 512-bit data storage unit. The RFID tag chip supports EPCGlobal C1G2 communication interface.

In the technical scheme, the RFID tag chip obtains energy through the RF electromagnetic wave of 840MHz-960MHz by utilizing the advanced ultrahigh frequency radio wave energy collection technology, and a 512-bit data storage unit is arranged in the RFID tag chip and can store data such as user information.

The utility model discloses a further setting, insulating cover 7 includes epoxy glue layer 703, internal insulation layer 704 and external insulation layer 702, the surface of touching arm body 4 is being coated to epoxy glue layer 703, the internal surface of internal insulation layer 704 bonds each other with the surface of epoxy glue layer 703, the outside of internal insulation layer 704 is wrapped to external insulation layer 702.

Among the above-mentioned technical scheme, through setting up epoxy glue layer 703, not only play insulating effect to can also play adhesive effect, thereby install in recess 2 that the temperature measurement label can be fine.

In addition, the outer side of the epoxy glue layer 703 is additionally provided with the inner insulating layer 704 and the outer insulating layer 702, so that the insulating effect is further improved, the voltage on the contact arm body 4 can be blocked, external lightning stroke can be well blocked, and the device is well protected.

Further, a hollow environment 701 is formed between the outer insulating layer 702 and the inner insulating layer 704, and an insulating support column 705 is arranged between the outer wall of the inner insulating layer 704 and the inner wall of the outer insulating layer 702.

Through setting up hollow environment 701, can the conduction of separation electric current, can further play insulating effect, it is safer to use.

The utility model discloses a further setting, it is equipped with a plurality of direction picture peg 3 to touch 4 outer walls of arm body, the cladding of direction picture peg 3 is in insulating cover 7. The grounding column 5 is fixed on the outer wall of the contact arm body 4, the grounding column 5 is divided into two sections, and the two ends of the grounding column 5 are connected with each other through a flexible connecting piece 6.

Among the above-mentioned technical scheme, through addding ground connection post 5 to can in time lead-in ground with the electric arc that equipment produced, and then eliminate electric arc, thereby further reduce the security.

It will be appreciated that one end of the grounding stud 5 is connected to an arc extinguishing chamber provided inside the contact arm body 4.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments, including the components, without departing from the principles and spirit of the invention, and still fall within the scope of the invention.

Claims (6)

1. The utility model provides an electric power touches arm with temperature measurement function which characterized in that, is including touching the arm body, the both ends that touch the arm body are equipped with the connecting hole respectively, it has a recess to mill inwards on the arm body to touch, temperature sensor has been placed in the recess, it is by insulating cover to touch arm body outer wall cladding.

2. The electric contact arm with temperature measurement function of claim 1, wherein the temperature measurement sensor is an RFID temperature measurement tag.

3. The electric contact arm with the temperature measurement function of claim 2, wherein the insulating sleeve comprises an epoxy glue layer, an inner insulating layer and an outer insulating layer, the epoxy glue layer is coated on the outer surface of the contact arm body, the inner surface of the inner insulating layer is adhered to the outer surface of the epoxy glue layer, and the outer insulating layer covers the outer side of the inner insulating layer.

4. The electric contact arm with temperature measurement function of claim 3, wherein a hollow environment is formed between the outer insulating layer and the inner insulating layer, and an insulating support column is arranged between the outer wall of the inner insulating layer and the inner wall of the outer insulating layer.

5. The electric contact arm with the temperature measuring function according to claim 4, wherein a plurality of guiding insertion plates are arranged on the outer wall of the contact arm body, and the guiding insertion plates are covered in the insulating sleeve.

6. The electric contact arm with the temperature measurement function of claim 5, wherein a grounding column is fixed on the outer wall of the contact arm body, the grounding column is divided into two sections, and the grounding columns at two ends are connected with each other through a flexible connecting piece.

Images