Sensor applied to temperature measurement of plum blossom contact of circuit breaker of switch cabinet

Abstract

The utility model discloses a sensor applied to temperature measurement of a plum blossom contact of a circuit breaker of a switch cabinet, which relates to the technical field of sensor devices and comprises a plum blossom contact main body, and a plurality of groups of contact pieces are annularly arrayed at the plum blossom contact main body. The sensor body applied to the temperature measurement of the switch cabinet circuit breaker plum blossom contact is designed according to the passive wireless acoustic surface wave sensing principle, the technical requirement for temperature measurement of the plum blossom contact is met, meanwhile, the installation piece is connected with the plum blossom contact, the locking rod and the driving assembly are connected with the installation piece, the locking plate is connected with the sensor body, and the temperature measurement of the plum blossom contact is achieved. Rapid installation and fixation are realized by adopting the specially designed installation assembly, the installation time of the sensor can be greatly shortened, compared with a traditional complex installation mode, installation personnel can rapidly position the sensor at the tulip contact and fix the sensor, the field operation time is shortened, the overall working efficiency is improved, the operation is simple and easy to understand, and the installation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field, concretely is the sensor for switchgear circuit breaker plum blossom contact temperature measurement. BACKGROUND

[0002] As the symbol of social progress, various electrical facilities are increasingly stepping into various fields of national economy and people's life, and with the increase of power grid load, the challenge to the safe operation of power grid is becoming more and more serious. In the power supply system of industry, enterprise and resident, the breaking contact point of various power transmission and distribution equipment may cause the increase of contact resistance due to loosening, aging, arc impact and other reasons, which will continuously increase the temperature of the contact point, in turn cause the increase of contact resistance, form vicious circle, and bring hidden danger to the safety of power grid. If not found in time, it is easy to cause fire explosion, large area power failure, personnel casualty and other disaster accidents, and the direct and indirect economic loss is huge.

[0003] In order to avoid such situation, sensor will be used, the sensor is connected with circuit breaker plum blossom contact, the temperature change of plum blossom contact can be monitored in real time through sensor, once the temperature exceeds the normal range, the early warning signal can be sent in time, reminding the operation and maintenance personnel to take measures to avoid the equipment failure and even fire accident caused by overheating. Since the existing plum blossom contact has a strange shape, it is more troublesome to install and fix the sensor and the plum blossom contact, and the installation difficulty of the sensor is increased. In view of the deficiency of prior art, the sensor for switchgear circuit breaker plum blossom contact temperature measurement is proposed to solve the above problems. CONTENT OF UTILITY MODEL

[0004] In order to realize the above purpose, the utility model realizes the following technical scheme: the sensor for switchgear circuit breaker plum blossom contact temperature measurement, including plum blossom contact main part, there are multiple groups of contact pieces in the annular array of plum blossom contact main part, sensor main part is arranged at the contact piece, installation piece is connected at the contact piece, the sensor main part and installation piece are detachably arranged through the installation assembly, the installation assembly includes locking rod, locking plate and driving assembly, the locking rod and driving assembly are connected with the installation piece, the locking plate is connected with the sensor main part.

[0005] The locking rod is inserted in the locking plate, and the driving assembly drives the locking rod to move.

[0006] Preferably, the sensor main part includes shell, base and temperature sensing chip, the shell is fixedly installed on the outer wall of the base, the temperature sensing chip is fixedly installed on the outer wall of the shell, and the locking plate is fixedly installed on the outer wall of the shell.

[0007] Preferably, the mounting piece is composed of a mounting plate, clamping plates and L functional plates, the mounting plate is attached to the inner wall of the contact piece, the clamping plates are fixedly installed on the outer wall of the mounting plate, the contact piece is clamped between the two groups of clamping plates, and the L functional plates are fixedly installed on the outer wall of the clamping plates.

[0008] Preferably, the driving assembly comprises a driving plate, a fixed plate, a driving rod, a driving spring, a connecting piece and a connecting plate, and the driving plate is slidingly connected to the top of the two L functional plates.

[0009] Preferably, the fixed plate is fixedly installed on the top of the two L functional plates, and the driving spring is fixedly installed between the fixed plate and the driving plate 601.

[0010] Preferably, the driving rod is located in the driving spring, one end of the driving rod is fixedly connected with the driving plate, and the other end of the driving rod is fixedly connected with the connecting piece through the fixed plate.

[0011] Preferably, the connecting plate is attached to the outer wall of the L functional plate, the connecting piece is fixedly connected with the top of the connecting plate, and the inner wall of the connecting plate is fixedly connected with a plurality of locking rods.

[0012] Preferably, the housing and the locking plate are inserted into the two groups of L functional plates, one end of the locking rod is inserted into the locking plate through the outer wall of the L functional plate, and the base is attached to the outer wall of the L functional plate.

[0013] The utility model discloses a sensor for switchgear circuit breaker plum blossom contact temperature measurement has the beneficial effect as follows: the sensor for switchgear circuit breaker plum blossom contact temperature measurement, sensor main part adopts passive wireless, acoustic surface wave sensing principle design, satisfies plum blossom contact temperature measurement technical demand, simultaneously, installs the piece with plum blossom contact connection to lock the rod with drive assembly with installation piece connection, makes locking plate with sensor main part connection, adopts specially designed installation assembly to realize quick installation and fix, can greatly shorten the installation time of sensor, compared with traditional complex installation mode, and the installation personnel can quickly position the sensor at plum blossom contact and fix, reduces the field operation time, improves overall working efficiency, and the operation is simple and easy to understand, reduces installation difficulty. ACCURACY OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0015] Figure 1It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the shell and mounting piece explosion structure schematic view of the utility model;

[0017] Figure 3 It is the sensor main body structure schematic view of the utility model;

[0018] Figure 4 It is the L function board and contact installation position schematic view of the utility model;

[0019] Figure 5 It is the both sides locking rod compression structure schematic view of the utility model;

[0020] Figure 6 It is the shell and locking rod connection internal section view of the utility model.

[0021] In the drawing: 1, plum blossom contact main body;101, contact piece;2, sensor main body;201, shell;202, base;203, temperature sensing chip;3, mounting piece;301, mounting plate;302, clamping plate;303, L function board;4, locking rod;5, locking plate;6, drive assembly;601, drive plate;602, fixed plate;603, drive rod;604, drive spring;605, connecting piece;606, connecting plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment is described clearly and completely, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making the creative labor are within the protection scope of the utility model.

[0023] In order to better understand the above technical scheme, the above technical scheme will be described in detail in the following in conjunction with the drawing and specific embodiment of the specification.

[0024] The utility model embodiment discloses a sensor applied to switch cabinet circuit breaker plum blossom contact temperature measurement.

[0025] According to the drawing Figures 1-6As shown, including the contact body 1, the contact body 1 is connected with the switch cabinet, the contact body 1 is arranged in the annular array, a plurality of contact pieces 101 are arranged on the contact piece 101, a sensor body 2 is arranged on the contact piece 101, and the mounting piece 3 is connected with the sensor body 2. The sensor body 2 and the mounting piece 3 are detachably arranged through the mounting assembly, the mounting assembly comprises a locking rod 4, a locking plate 5 and a driving assembly 6, the locking rod 4 and the driving assembly 6 are connected with the mounting piece 3, and the locking plate 5 is connected with the sensor body 2; in use, first, the sensor body 2 is fixedly installed on the contact body 1 through the mounting piece 3, and the temperature sensing chip 203 is attached to the outer wall of the contact piece 101, in the operation process of the switch cabinet, the contact body 1 will generate heat due to the current, if there is a poor contact problem, the temperature will abnormally rise, the sensor body 2 can monitor the temperature change of the contact body 1 in real time, once the temperature exceeds the normal range, a warning signal can be sent in time to remind the operation and maintenance personnel to take measures to avoid overheating and even fire accidents.

[0026] The locking rod 4 is inserted into the locking plate 5, and the driving assembly 6 drives the locking rod 4 to move.

[0027] The sensor body 2 comprises a shell 201, a base 202 and a temperature sensing chip 203, the shell 201 is fixedly installed on the outer wall of the base 202, the sensor body 2 is a passive and wireless temperature sensor, there is no battery or power element in the sensor body 2, the sensor body 2 is intrinsically safe, explosion-proof, and can be applied in high-voltage and large-current scenes in the power industry, the shell 201 is made of nylon or PEEK high-temperature resistant plastic material, and the plastic material does not block electromagnetic signals, which can ensure the transmission of wireless signals.

[0028] The temperature sensing chip 203 is fixedly installed on the outer wall of the shell 201, and the locking plate 5 is fixedly installed on the outer wall of the shell 201, when the sensor body 2 and the contact piece 101 are installed and connected, first, the staff clamps the mounting piece 3 on the outer peripheral wall of the contact piece 101, and the contact piece 101 is located between the two clamping plates 302, and the L function plate 303 at one end of the two clamping plates 302 after clamping is located on the periphery of the contact body 1, and the specific can refer to the attached Figure 4 , and then the sensor body 2 is installed and locked in the two L function plates 303, so that the sensor body 2 can monitor the temperature change of the contact body 1 in real time.

[0029] The mounting piece 3 is composed of a mounting plate 301, clamping plates 302 and L functional plates 303. The mounting plate 301 is attached to the inner wall of the contact piece 101. The clamping plates 302 are fixedly installed on the outer wall of the mounting plate 301 on both sides. The mounting piece 3 and the contact piece 101 can be welded to improve the mounting strength of the mounting piece 3 and the contact piece 101. The contact piece 101 is clamped between the two sets of clamping plates 302. The L functional plate 303 is fixedly installed on the outer wall of the clamping plate 302. When the sensor body 2 is installed and locked inside the two sets of L functional plates 303, the worker first inserts the index finger and the thumb between the two drive plates 601 with one hand, and holds the sensor body 2 with the other hand. When the worker drives the two drive plates 601 to slide away from each other, the sensor body 2 is aligned with the two sets of L functional plates 303 and inserted inside. Then, the two drive plates 601 are loosened. Under the cooperation of the drive spring 604, the two locking rods 4 are reset, thereby enabling the two locking rods 4 to be inserted into the locking plates 5 on both sides of the sensor body 2, respectively. The sensor body 2 is installed and locked inside the two sets of L functional plates 303, realizing the installation and locking of the sensor body 2 and the star contact body 1. The installed sensor body 2 can monitor the temperature change of the star contact body 1 in real time.

[0030] The drive assembly 6 includes drive plates 601, fixed plates 602, drive rods 603, drive springs 604, connecting pieces 605 and connecting plates 606. The drive plates 601 are slidably connected to the top of the two L functional plates 303, respectively. The fixed plates 602 are fixedly installed on the top of the two L functional plates 303, respectively. The drive springs 604 are fixedly installed between the fixed plates 602 and the drive plates 601. It should be noted that before the sensor body 2 is installed inside the two sets of L functional plates 303, the drive assembly 6 can drive the two locking rods 4 to be separated from the inside of the L functional plate 303. After installation, the cooperation of the drive assembly 6 can quickly insert the locking rod 4 into the locking plate 5 to lock the sensor body 2 inside the two sets of L functional plates 303. The installed temperature sensing chip 203 is attached to the outer wall of the contact piece 101 to monitor the temperature change of the star contact body 1.

[0031] The driving rod 603 is located inside the driving spring 604, one end of the driving rod 603 is fixedly connected with the driving plate 601, the other end of the driving rod 603 passes through the fixed plate 602 and is fixedly connected with the connecting piece 605, the connecting plate 606 is attached to the outer wall of the L functional plate 303, the connecting piece 605 is fixedly connected with the top of the connecting plate 606, the inner walls of the connecting plate 606 are fixedly connected with a plurality of groups of locking rods 4, when the two locking rods 4 are driven to slide by the driving assembly 6, the driving plates 601 on the two sides are driven to slide away from each other, the driving spring 604 between the driving plate 601 and the fixed plate 602 is extruded and deformed, and then the one end of the driving rod 603 can push the locking rod 4 to be separated from the inside of the L functional plate 303, so that the sensor main body 2 can be installed in the inside of the two groups of L functional plates 303, and the locking rod 4 can be quickly inserted into the locking plate 5 by the reset of the driving spring 604, so that the sensor main body 2 is locked in the inside of the two groups of L functional plates 303, and the installation and locking work of the sensor main body 2 and the star contact main body 1 are realized.

[0032] The shell 201 and the locking plate 5 are inserted into the inside of the two groups of L functional plates 303, one end of the locking rod 4 passes through the outer wall of the L functional plate 303 and is inserted into the inside of the locking plate 5, and the base 202 is attached to the outer wall of the L functional plate 303.

[0033] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sensor applied to the temperature measurement of the switch cabinet circuit breaker wrench contact, comprising a wrench contact body (1), there are multiple groups of contact pieces (101) in the annular array of the wrench contact body (1), and a sensor body (2) is arranged at the contact piece (101), characterized in that: The contact piece (101) is provided with a mounting piece (3), the sensor body (2) and the mounting piece (3) are detachably arranged through a mounting assembly, the mounting assembly comprises a locking rod (4), a locking plate (5) and a driving assembly (6), the locking rod (4) and the driving assembly (6) are connected with the mounting piece (3), and the locking plate (5) is connected with the sensor body (2). ​ The locking rod (4) is inserted into the locking plate (5), and the driving assembly (6) drives the locking rod (4) to move.

2. The sensor for measuring temperature of the switch cabinet circuit breaker wye contact according to claim 1, characterized in that: The sensor body (2) comprises a shell (201), a base (202) and a temperature sensing chip (203), the shell (201) is fixedly installed on the outer wall of the base (202), the temperature sensing chip (203) is fixedly installed on the outer wall of the shell (201), and the locking plate (5) is fixedly installed on the outer walls on both sides of the shell (201).

3. The sensor for measuring temperature of the switch cabinet circuit breaker wye contact according to claim 2, characterized in that: The mounting piece (3) is composed of a mounting plate (301), a clamping plate (302) and an L functional plate (303), the mounting plate (301) is attached to the inner wall of the contact piece (101), the clamping plate (302) is fixedly installed on the outer walls on both sides of the mounting plate (301), the contact piece (101) is clamped between the two groups of clamping plates (302), and the L functional plate (303) is fixedly installed on the outer wall of the clamping plate (302).

4. The sensor for measuring temperature of the switch cabinet circuit breaker wye contact according to claim 3, characterized in that: The driving assembly (6) comprises a driving plate (601), a fixed plate (602), a driving rod (603), a driving spring (604), a connecting piece (605) and a connecting plate (606), and the driving plate (601) is slidably connected to the top of the two L functional plates (303).

5. The sensor for measuring temperature of the switch cabinet circuit breaker wye contact according to claim 4, characterized in that: The fixed plate (602) is fixedly installed on the top of the two L functional plates (303), and the driving spring (604) is fixedly installed between the fixed plate (602) and the driving plate (601).

6. The sensor for measuring temperature of the switch cabinet circuit breaker wye contact according to claim 5, characterized in that: The driving rod (603) is located in the driving spring (604), one end of the driving rod (603) is fixedly connected with the driving plate (601), and the other end of the driving rod (603) penetrates through the fixed plate (602) and is fixedly connected with the connecting piece (605).

7. The sensor for measuring temperature of the switch cabinet circuit breaker wye contact according to claim 6, characterized in that: The connecting plate (606) is attached to the outer wall of the L functional plate (303), the connecting piece (605) is fixedly connected with the top of the connecting plate (606), and the inner walls of the connecting plate (606) are fixedly connected with a plurality of locking rods (4).

8. The sensor for measuring temperature of the switch cabinet circuit breaker wye contact according to claim 2, characterized in that: The shell (201) and the locking plate (5) are inserted into the two groups of L functional plates (303), one end of the locking rod (4) penetrates through the outer wall of the L functional plate (303) and is inserted into the locking plate (5), and the base (202) is attached to the outer wall of the L functional plate (303).

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