CN216350941U

CN216350941U - Novel needle type high-low voltage motor insulation measurement assembly

Info

Publication number: CN216350941U
Application number: CN202122681252.3U
Authority: CN
Inventors: 张继文; 吕海威; 席伟; 茹光伟; 张贺; 廉文星
Original assignee: Huaneng Luoyang Thermal Power Co Ltd
Current assignee: Huaneng Luoyang Thermal Power Co Ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-04-19
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a novel needle type high-low voltage motor insulation measuring component, which relates to the technical field of motor insulation measurement and comprises a detecting component and a lead component, wherein the detecting component comprises an insulation handle, a first insulation rod, a second insulation rod, a metal rod and a needle type contact electrode, an audible and visual alarm is arranged on the metal rod, the inner side of the metal rod is also connected with an electricity testing alarm circuit, the needle type contact electrode, the metal rod, a thread probe, the first insulation rod, the second insulation rod and a measuring insulation lead can be detachably connected through threads, so that the replacement and the storage are convenient, the safety distance between the first insulation rod and a tested device can be adjusted according to requirements, the range of holding the insulation component by a measuring person is enlarged, the use occasion of an insulation measuring tool is widened, and the applicability is strong for measuring the insulation of a low voltage motor with a thermal relay, and from the technical aspect, avoid because of survey crew's mistake, mistake income electrified interval causes the survey crew to electrocute the casualties.

Description

Novel needle type high-low voltage motor insulation measurement assembly

Technical Field

The utility model relates to the technical field of motor insulation measurement, in particular to a novel needle type high-low voltage motor insulation measurement assembly.

Background

The existing insulation measuring tool for high and low voltage motors is a hand-operated megger and is an insulated wire for measurement. The insulation measuring method comprises the following steps: 1. selecting a megger with complete performance and qualified voltage grade; 2. checking the name and the number of the tested device; 3. an electroscope with proper and qualified voltage grade is selected to verify that the tested equipment is ensured to have no voltage; 4. and connecting the megger with the tested equipment by using an insulated wire, wherein the average rotating speed of the megger is 120 r/min, and the megger is kept stable for 60 seconds. It has the following disadvantages: 1. the safety distance is insufficient. According to the electric power safety work rules: the uninterrupted safe distance of the electrical equipment below 10kV is 0.7m, and the insulated wire for handheld measurement of the measuring person obviously cannot meet the requirement of the safe distance. 2. The applicability is poor. The low-voltage motor with the thermal relay needs to measure the motor insulation at the terminal block, the existing insulated wire for measurement has larger volume, smaller measurement aperture and poor applicability. 3. The safety performance is not high. When the measuring staff goes wrong, and misoperation occurs, the measuring staff cannot be effectively prompted whether the equipment is electrified or not, and the electrical five-prevention requirement is not met.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the utility model.

The present invention has been made in view of the above and/or other problems occurring in the conventional insulation measuring assembly for a novel needle-type high-low voltage motor.

Therefore, the problem to be solved by the utility model is how to provide a novel needle type insulation measuring assembly for high and low voltage motors.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a novel insulating measuring subassembly of needle type high-low voltage motor which characterized in that: comprises the following steps of;

the detection assembly comprises an insulation handle, a first insulation rod, a second insulation rod, a metal rod and a needle type contact electrode, wherein one end of the insulation handle is connected with the first insulation rod, the other end of the first insulation rod is connected with the second insulation rod, one end, far away from the first insulation rod, of the second insulation rod is connected with the metal rod, and one end, far away from the second insulation rod, of the metal rod is connected with the needle type contact electrode;

the wire assembly comprises a measuring insulated wire, a round nut contact and a pincerlike contact, the measuring insulated wire is arranged on the inner side of the detection assembly, the round nut contact is arranged at one end of the detection assembly, the pincerlike contact is arranged at the other end of the measuring insulated wire, and the pincerlike contact is connected with a hand-operated megger binding post.

Based on the technical characteristics: needle type contact electrode, metal pole, screw probe, first insulator spindle, second insulator spindle and measure insulated wire and all can dismantle the connection through the screw thread, be convenient for change and save.

As a preferred scheme of the novel needle type high-low voltage motor insulation measuring assembly, the utility model comprises the following steps: safe handguards are installed to the both sides of insulating handle, and safe handguards can adopt the silicon rubber sheath to make, and the one end that insulating handle is close to first insulating pole still is provided with first external screw thread.

Based on the technical characteristics: during operation, safe hand protector can not be crossed to the measurement personnel hand, and safe hand protector makes for the silicon rubber sheath and has better frictional property to insulating handle still will be connected with first insulating rod through first external screw thread, makes personnel can be nimble with its dismouting as required.

As a preferred scheme of the novel needle type high-low voltage motor insulation measuring assembly, the utility model comprises the following steps: first internal thread has been seted up to the one end that first insulating rod is close to insulating handle, and insulating handle is through the first external screw thread of one end and the first internal thread threaded connection of first insulating rod one end, and first internal thread's one end is kept away from to first insulating rod is provided with the second external screw thread.

Based on the technical characteristics: the length of the first insulating rod is more than or equal to 0.7m, and the lengths of the two groups of insulating rods can be freely combined according to actual needs, so that the electric shock risk of measurement personnel caused by misoperation is avoided.

As a preferred scheme of the novel needle type high-low voltage motor insulation measuring assembly, the utility model comprises the following steps: a second internal thread is formed in one end, close to the first insulating rod, of the second insulating rod, the first insulating rod is in threaded connection with the second insulating rod at one end of the second insulating rod through a second external thread at one end, and a third external thread is arranged at one end, far away from the second internal thread, of the second insulating rod.

Based on the technical characteristics: the first insulating rod and the second insulating rod can adjust the safety distance with the tested device as required, the range of holding the insulation component by a measurer is enlarged, the use occasion of the insulation tool is widened, and the insulation is measured for the low-voltage motor with the thermal relay, so that the high-voltage insulation device has strong applicability.

As a preferred scheme of the novel needle type high-low voltage motor insulation measuring assembly, the utility model comprises the following steps: one end of the metal rod, which is close to the second insulating rod, is provided with a third internal thread, the metal rod is in threaded connection with a third external thread of one end of the second insulating rod through the third internal thread, one end of the metal rod, which is far away from the second insulating rod, is provided with a thread probe, the circular nut contact is also connected with the thread probe, the metal rod is provided with an audible and visual alarm, and the inner side of the metal rod is further connected with an electricity testing alarm circuit.

Based on the technical characteristics: the metal rod can be movably connected with the third external thread at one end of the second insulating rod through the third internal thread, and the round nut contact is also connected with the thread probe, so that the electrified value of the motor wiring can be transmitted to the electricity testing alarm circuit through the round nut contact for detection.

As a preferred scheme of the novel needle type high-low voltage motor insulation measuring assembly, the utility model comprises the following steps: audible-visual annunciator's one end is provided with the alarm flash light, and the alarm flash light is located the outer wall of metal pole, and one side of audible-visual annunciator is provided with loudspeaker of raising one's voice to loudspeaker are located the inner wall of metal pole, test electric alarm circuit and include voltage detection module, power module and audible-visual annunciator, and the voltage detection module input is connected with the screw probe of metal pole one end, and voltage detection module's output is connected with audible-visual annunciator, and power module still will be connected with audible-visual annunciator electricity.

Based on the technical characteristics: the power module can adopt 3V's high performance lithium manganese button cell to supply power for audible-visual annunciator, and audible-visual annunciator includes that alarm flash light and loudspeaker are crossed when the live value by survey motor wiring surpassing the alarm value, and voltage detection module will start audible-visual annunciator and send out the police dispatch newspaper, and the alarm flash light just also sends light, and the measuring staff of being convenient for observes.

As a preferred scheme of the novel needle type high-low voltage motor insulation measuring assembly, the utility model comprises the following steps: one end of the needle contact electrode, which is close to the metal rod, is provided with a hollow circular threaded hole, and the needle contact electrode is in threaded connection with a threaded probe at one end of the metal rod.

Based on the technical characteristics: the end part of the needle type contact electrode is slender and can be used for contacting the wiring of a high-low voltage motor, and the tail part of the needle type contact electrode is a hollow circular threaded hole and can be movably connected with a threaded probe at one end of a metal rod, so that the disassembly, assembly and detection of personnel are more convenient.

The utility model has the beneficial effects that: the utility model provides a pair of novel insulating subassembly is surveyed to high low voltage motor of pin type, its pin type contact electrode, the metal pole, the thread probe, first insulating rod, the second insulating rod, and measure insulating wire all can dismantle the connection through the screw thread, be convenient for change and save, first insulating rod, the safe distance with equipment under test can be adjusted as required to the second insulating rod, the measuring staff has been enlarged and has been held the scope of surveying insulating subassembly, the use occasion of surveying insulating tool has been widened, and survey insulatedly to the low voltage motor who has thermal relay, very strong suitability has, and from the technical layer face, avoid because of the measuring staff error, the electrified interval is gone into to the mistake, cause the measuring staff to electrocute and die.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is an overall structural diagram of a novel needle-type high-low voltage motor insulation measuring assembly in examples 1 and 3.

Fig. 2 is an exploded view of a novel needle-type insulation measuring assembly for high-low voltage motors in examples 1 and 2.

Fig. 3 is a block diagram of an electricity testing alarm circuit of the novel needle-type high-low voltage motor insulation measuring assembly in example 3.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a detection component; 101. an insulated handle; 101a, a safety hand guard; 101b, a first external thread; 102. a first insulating rod; 102a, a first internal thread; 102b, second external threads; 103. a second insulating rod; 103a, a second internal thread; 103b, a third external thread; 104. a metal rod; 104a, a third internal thread; 104b, a thread probe; 104c, an audible and visual alarm; 104c-1, an alarm flash; 104c-2, a loudspeaker; 104d, an electricity testing alarm circuit; 104d-1 and a voltage detection module; 104d-2 and a power supply module; 105. a needle-type contact electrode; 105a, a circular threaded hole; 200. a wire assembly; 201. measuring the insulated wire; 202. a round nut contact; 203. a pincer-shaped contact.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 and 2, for a first embodiment of the present invention, this embodiment provides a novel needle type high-low voltage motor insulation measuring assembly, which includes a detection assembly 100, which includes an insulation handle 101, a first insulation rod 102, a second insulation rod 103, a metal rod 104 and a needle type contact electrode 105, one end of the insulation handle 101 is connected with the first insulation rod 102, the other end of the first insulation rod 102 is connected with the second insulation rod 103, one end of the second insulation rod 103 away from the first insulation rod 102 is connected with the metal rod 104, one end of the metal rod 104 away from the second insulation rod 103 is connected with the needle type contact electrode 105, safety handguards 101a are installed on two sides of the insulation handle 101, the safety handguards 101a can be made of silicone rubber sheaths, one end of the insulation handle 101 close to the first insulation rod 102 is further provided with a first external thread 101b, one end of the first insulation rod 102 close to the insulation handle 101 is provided with a first internal thread 102a, the insulated handle 101 is screwed with a first internal thread 102a at one end of the first insulated rod 102 through a first external thread 101b at one end, a second external thread 102b is provided at one end of the first insulated rod 102 away from the first internal thread 102a, a second internal thread 103a is provided at one end of the second insulated rod 103 close to the first insulated rod 102, the first insulated rod 102 is screwed with a second insulated rod 103 at one end of the second insulated rod 103 through a second external thread 102b at one end, a third external thread 103b is provided at one end of the second insulated rod 103 away from the second internal thread 103a, a third internal thread 104a is provided at one end of the metal rod 104 close to the second insulated rod 103, the metal rod 104 is screwed with a third external thread 103b at one end of the second insulated rod 103 through a third internal thread 104a, a threaded probe 104b is provided at one end of the metal rod 104 away from the second insulated rod 103, the round nut contact 202 is further connected with the threaded probe 104b, one end of the pin contact electrode 105 close to the metal rod 104 is opened with a hollow circular threaded hole 105a, and the pin contact electrode 105 is in threaded connection with a threaded probe 104b at one end of the metal rod 104.

The insulated handle 101 is screw-coupled with a first internal thread 102a of one end of the first insulated rod 102 by a first external thread 101b of one end, the first insulated rod 102 is screw-coupled with a second insulated rod 103 of one end of the second insulated rod 103 by a second external thread 102b of one end, the metal rod 104 is screw-coupled with a third external thread 103b of one end of the second insulated rod 103 by a third internal thread 104a, and the needle contact electrode 105 is screwed with the screw probe 104b at one end of the metal rod 104, the components connected by the thread can be easily disassembled, so that the components are convenient to store and replace, the hand of the measurer can not cross the safety hand guard 101a, the measured motor wiring is firstly contacted by a side needle type contact electrode 105, if the electrified value of the measured motor wiring exceeds the alarm value, an acousto-optic signal is triggered, and if the measured motor wiring is not electrified, the motor can work safely.

Example 2

Referring to fig. 2, a second embodiment of the present invention, which is different from the first embodiment, is: wire assembly 200, it is including measuring insulated wire 201, circular nut contact 202 and pincerlike contact 203, measures insulated wire 201 and sets up the inboard at detecting assembly 100, and detecting assembly 100's one end is provided with circular nut contact 202, and measures insulated wire 201's the other end and be provided with pincerlike contact 203 to pincerlike contact 203 links to each other with hand formula megger terminal, makes and measures insulated wire 201 accessible screw thread and can dismantle the connection, is convenient for change and save.

Example 3

Referring to fig. 1 and 3, a third embodiment of the present invention, which differs from the first two embodiments, is: the metal rod 104 is provided with an audible and visual alarm 104c, the inner side of the metal rod 104 is also connected with an electricity testing alarm circuit 104d, one end of the audible and visual alarm 104c is provided with an alarm flash lamp 104c-1, the alarm flash 104c-1 is located on the outer wall of the metal rod 104, one side of the audible and visual alarm 104c is provided with a loudspeaker 104c-2, and the loudspeaker 104c-2 is located on the inner wall of the metal rod 104, the electricity testing alarm circuit 104d comprises a voltage detection module 104d-1, a power supply module 104d-2 and an audible and visual alarm 104c, the input end of the voltage detection module 104d-1 is connected with the screw probe 104b at one end of the metal rod 104, and the output terminal of the voltage detection module 104d-1 is connected to the audible and visual alarm 104c, and the power module 104d-2 will also be electrically connected to the audible and visual alarm 104 c.

The power module 104d-2 can adopt a 3V high-performance lithium manganese button battery to supply power for the audible and visual alarm 104c, the audible and visual alarm 104c comprises an alarm flash lamp 104c-1 and a loudspeaker 104c-2, the loudspeaker 104c-2 is installed in the metal rod 104 shell, the alarm flash lamp 104c-1 is installed on the metal rod 104 shell, when the measured motor wiring electrification value exceeds the alarm value, the voltage detection module 104d-1 can start the audible and visual alarm 104c to give an alarm, and the alarm flash lamp 104c-1 also gives out light, so that a measurer can observe the alarm conveniently.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a novel insulating measuring subassembly of needle type high-low voltage motor which characterized in that: comprises the following steps of;

the detection assembly (100) comprises an insulation handle (101), a first insulation rod (102), a second insulation rod (103), a metal rod (104) and a needle contact electrode (105), wherein the first insulation rod (102) is connected to one end of the insulation handle (101), the second insulation rod (103) is connected to the other end of the first insulation rod (102), the metal rod (104) is connected to one end, far away from the first insulation rod (102), of the second insulation rod (103), and the needle contact electrode (105) is connected to one end, far away from the second insulation rod (103), of the metal rod (104);

the lead assembly (200) comprises a measuring insulated lead (201), a circular nut contact (202) and a pincerlike contact (203), the measuring insulated lead (201) is arranged on the inner side of the detection assembly (100), the circular nut contact (202) is arranged at one end of the detection assembly (100), the pincerlike contact (203) is arranged at the other end of the measuring insulated lead (201), and the pincerlike contact (203) is connected with a hand-operated megger binding post.

2. The novel needle type high-low voltage motor insulation measuring assembly as claimed in claim 1, wherein: safe hand protector (101a) is installed to the both sides of insulating handle (101), and safe hand protector (101a) can adopt the silicon rubber sheath to make, and insulating handle (101) are close to the one end of first insulating rod (102) and still are provided with first external screw thread (101 b).

3. The novel needle type high-low voltage motor insulation measuring assembly as claimed in claim 1, wherein: a first internal thread (102a) is formed in one end, close to the insulating handle (101), of the first insulating rod (102), the insulating handle (101) is in threaded connection with the first internal thread (102a) at one end of the first insulating rod (102) through a first external thread (101b) at one end, and a second external thread (102b) is formed in one end, far away from the first internal thread (102a), of the first insulating rod (102).

4. The novel needle type high-low voltage motor insulation measuring assembly as claimed in claim 1, wherein: a second internal thread (103a) is formed in one end, close to the first insulating rod (102), of the second insulating rod (103), the first insulating rod (102) is in threaded connection with the second insulating rod (103) at one end of the second insulating rod (103) through a second external thread (102b) at one end, and a third external thread (103b) is formed in one end, far away from the second internal thread (103a), of the second insulating rod (103).

5. The novel needle type high-low voltage motor insulation measuring assembly as claimed in claim 1, wherein: one end of the metal rod (104) close to the second insulating rod (103) is provided with a third internal thread (104a), the metal rod (104) is in threaded connection with a third external thread (103b) at one end of the second insulating rod (103) through the third internal thread (104a), one end of the metal rod (104) far away from the second insulating rod (103) is provided with a thread probe (104b), the circular nut contact (202) is further connected with the thread probe (104b), an audible and visual alarm (104c) is installed on the metal rod (104), and the inner side of the metal rod (104) is further connected with an electricity testing alarm circuit (104 d).

6. The novel needle type high-low voltage motor insulation measuring assembly as claimed in claim 5, wherein: one end of the audible and visual alarm (104c) is provided with an alarm flash lamp (104c-1), the alarm flash lamp (104c-1) is positioned on the outer wall of the metal rod (104), one side of the audible and visual alarm (104c) is provided with a loudspeaker (104c-2), and the loudspeaker (104c-2) is positioned on the inner wall of the metal rod (104).

7. The novel needle type high-low voltage motor insulation measuring assembly as claimed in claim 5, wherein: the electricity testing alarm circuit (104d) comprises a voltage detection module (104d-1), a power supply module (104d-2) and an audible and visual alarm (104c), wherein the input end of the voltage detection module (104d-1) is connected with a threaded probe (104b) at one end of the metal rod (104), the output end of the voltage detection module (104d-1) is connected with the audible and visual alarm (104c), and the power supply module (104d-2) is electrically connected with the audible and visual alarm (104 c).

8. The novel needle type high-low voltage motor insulation measuring assembly as claimed in claim 1, wherein: one end of the needle contact electrode (105) close to the metal rod (104) is provided with a hollow round threaded hole (105a), and the needle contact electrode (105) is in threaded connection with a threaded probe (104b) at one end of the metal rod (104).