CN112366804A

CN112366804A - Low-voltage quick access device for generator car

Info

Publication number: CN112366804A
Application number: CN202011222443.7A
Authority: CN
Inventors: 蓝秀堂; 周武成; 蓝碧堂; 李健锋
Original assignee: Guangdong Wanjiang Distribution Co ltd
Current assignee: Guangdong Wanjiang Distribution Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-02-12

Abstract

The invention provides a low-voltage quick access device for a generator car, which comprises a connecting bus, a socket assembly and a breaker. The socket assembly is located the female input of arranging of connection, and the power-generating car passes through the socket assembly and arranges electric connection with the connection. The connecting bus bar comprises an A-phase bus bar, a B-phase bus bar, a C-phase bus bar and an N-phase bus bar. The socket assembly comprises a first socket unit and a second socket unit, wherein the first socket unit comprises a first A-phase socket, a first B-phase socket, a first C-phase socket and a first N-phase socket. The second socket unit includes a second a-phase socket, a second B-phase socket, a second C-phase socket, and a second N-phase socket. The first A-phase socket and the second A-phase socket are connected to the A-phase busbar in parallel, the first B-phase socket and the second B-phase socket are connected to the B-phase busbar in parallel, the first C-phase socket and the second C-phase socket are connected to the C-phase busbar in parallel, and the first N-phase socket and the second N-phase socket are connected to the N-phase busbar in parallel. The device ensures the long-term effectiveness of the emergency action.

Description

Low-voltage quick access device for generator car

Technical Field

The invention relates to the technical field of generator car access devices, in particular to a low-voltage quick access device for a generator car.

Background

A low-voltage quick access device for a generator car utilizes the existing electric quick connector equipment and microcomputer intelligent relay protection technology to develop a set of quick access device for an emergency power supply. The low-voltage quick access device of the generator car has wide application in emergency repair and disaster relief, power supply protection and temporary power supply protection.

The plug of the emergency quick access device of the emergency power generation vehicle adopts a quick connector, a connecting system with a locking mechanism and an anti-electric shock function. The low-voltage quick access device of the power generation car has short access time and has related safety protection of automatic phase judgment and phase sequence protection, hot-line operation prevention, reverse power transmission prevention, hot-line plugging prevention and the like. The low-voltage quick access device of the generator car adopts the quick connector, can realize quick connection from a power supply end to a client within 5 minutes basically, and is safer, quicker and more reliable compared with the traditional connection mode of a copper nose.

The low-voltage quick access device of the power generation car is used for quickly accessing a 0.4KV power supply of the emergency power generation car to a user side, mainly comprises a connector head used for the end of the emergency power generation car and a plug of a power utilization terminal, and solves the problem that the traditional method of fastening by using a wrench and a bolt takes 20-30 minutes. The access time of the emergency power supply is shortened, the continuous and reliable power utilization of a user is guaranteed, and the power emergency capacity and the power supply and power protection efficiency are improved.

However, the socket of the generator car low-voltage quick access device only has one group, namely A, B, C and N four-phase sockets, and corresponds to four access plugs of the generator car one by one. Since the receptacles are often subjected to insertion impacts from generator car splices, A, B, C and the N-quad phase receptacles require periodic inspection and maintenance. And during the maintenance change to A, B, C and N four-phase socket, this generator car low pressure quick access device will unable normal the coming into operation, and then reduced its permanent validity of emergency action, reduced the reliability of using.

Disclosure of Invention

Therefore, the low-voltage quick access device for the generator car is needed to solve the technical problem of insufficient effectiveness in long-term use.

The utility model provides a quick access device of generator car low pressure, this quick access device of generator car low pressure includes: connect female arranging, socket subassembly and circuit breaker. The socket assembly and the circuit breaker are respectively arranged on the connecting busbar. The input end of the connecting busbar is used for connecting the output end of the power generation car, and the output end of the connecting busbar is used for connecting the input end of the user equipment. The socket assembly is located the female input end department of arranging of connection, the power-generating car pass through the socket assembly with female electric connection of arranging of connection. The connecting bus bar comprises an A-phase bus bar, a B-phase bus bar, a C-phase bus bar and an N-phase bus bar. The socket assembly comprises a first socket unit and a second socket unit, wherein the first socket unit comprises a first A-phase socket, a first B-phase socket, a first C-phase socket and a first N-phase socket. The second outlet unit includes a second a-phase outlet, a second B-phase outlet, a second C-phase outlet, and a second N-phase outlet. The first A-phase socket and the second A-phase socket are connected onto the A-phase busbar in parallel, the first B-phase socket and the second B-phase socket are connected onto the B-phase busbar in parallel, the first C-phase socket and the second C-phase socket are connected onto the C-phase busbar in parallel, and the first N-phase socket and the second N-phase socket are connected onto the N-phase busbar in parallel.

In one embodiment, the low-voltage quick access device for the generator car further comprises a current transformer, and the current transformer is arranged on the connecting busbar.

In one embodiment, the low-voltage quick access device for the generator car further comprises a lightning arrester, and the lightning arrester is electrically connected with the connecting busbar.

In one embodiment, the circuit breaker is a molded case circuit breaker.

In one embodiment, the low-voltage quick access device of the generator car further comprises a box body and a wiring partition plate, wherein the connection busbar, the socket assembly and the circuit breaker are arranged on the box body. The bottom of box has the wiring room, wiring baffle with box swing joint, wiring baffle lid is located the opening part of wiring room. The terminal part of the output end of the wiring busbar is contained in the wiring chamber.

In one embodiment, the wiring partition board is rotatably connected with the box body through a rotating shaft.

In one embodiment, the wiring spacer is rotated in a horizontal direction.

In one embodiment, the wiring partition board is provided with four observation holes, and the four observation holes respectively correspond to the tail ends of the output sides of the a-phase busbar, the B-phase busbar, the C-phase busbar and the N-phase busbar one by one.

In one embodiment, the viewing aperture is a circular aperture.

In one embodiment, the wiring partition board is provided with a transparent cover at each observation hole.

Above-mentioned quick access device of generator car low pressure connects female the joint of arranging through socket subassembly electric connection generator car, connects female output of arranging and user equipment's input electric connection to realize the power supply effect of generator car to user equipment. The socket assembly achieves grouping effect through the first socket unit and the second socket unit, and accordingly the connector of the power generation vehicle can be electrically connected with the connecting busbar through the first socket unit or the second socket unit. Namely, the four corresponding connectors of the generator car can be correspondingly inserted and connected one by one through the first A-phase socket or the second A-phase socket, the first B-phase socket or the second B-phase socket, the first C-phase socket or the second C-phase socket and the first N-phase socket or the second N-phase socket respectively. When one of the first socket unit and the second socket unit is in a maintenance state, the generator car low-voltage quick access device can still be put into use, so that the use reliability is ensured. This quick access device of generator car low pressure has ensured the permanent validity of its emergency action, has promoted the use reliability.

Drawings

FIG. 1 is a schematic diagram of the operation of a low-voltage quick access device of a generator car in one embodiment;

FIG. 2 is another schematic diagram of the low voltage quick access device of the generator car in one embodiment;

FIG. 3 is a schematic structural diagram of a box structure of an access box of a generator car in one embodiment;

FIG. 4 is another schematic structural diagram of a box structure of an access box of a generator car in one embodiment;

FIG. 5 is a schematic view showing the internal structure of a box structure of an access box of a generator car in one embodiment;

fig. 6 is another internal structure schematic diagram of the low-voltage quick access device of the generator car in one embodiment.

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. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 6 together, the present invention provides a low-voltage quick access device 10 for a power generating car, wherein the low-voltage quick access device 10 for the power generating car comprises: a connection busbar 11, a socket assembly 12 and a circuit breaker QF. The socket assembly 12 and the breaker QF are respectively arranged on the connecting busbar 11. The input end of the connecting busbar 11 is used for connecting the output end of the power generation car, and the output end of the connecting busbar 11 is used for connecting the input end of the user equipment. The socket assembly 12 is located at the input end of the connecting busbar 11, and the generator car is electrically connected with the connecting busbar 11 through the socket assembly 12. The connecting bus bar 11 comprises an A-phase bus bar, a B-phase bus bar, a C-phase bus bar and an N-phase bus bar. The receptacle assembly 12 includes a first receptacle unit 20 and a second receptacle unit 30, and the first receptacle unit 20 includes a first a-phase receptacle, a first B-phase receptacle, a first C-phase receptacle, and a first N-phase receptacle. The second outlet unit 30 includes a second a-phase outlet, a second B-phase outlet, a second C-phase outlet, and a second N-phase outlet. The first A-phase socket and the second A-phase socket are connected to the A-phase busbar in parallel, the first B-phase socket and the second B-phase socket are connected to the B-phase busbar in parallel, the first C-phase socket and the second C-phase socket are connected to the C-phase busbar in parallel, and the first N-phase socket and the second N-phase socket are connected to the N-phase busbar in parallel.

Above-mentioned quick access device of generator car low pressure 10 connects female joint of arranging 11 through socket component 12 electric connection generator car of arranging, connects female output of arranging 11 and user equipment's input electric connection to realize the power supply effect of generator car to user equipment. The socket assembly 12 is divided into groups by the first socket unit 20 and the second socket unit 30, so that the connectors of the generator car can be electrically connected with the connecting busbar 11 through the first socket unit 20 or the second socket unit 30. Namely, the four corresponding connectors of the generator car can be correspondingly inserted and connected one by one through the first A-phase socket or the second A-phase socket, the first B-phase socket or the second B-phase socket, the first C-phase socket or the second C-phase socket and the first N-phase socket or the second N-phase socket respectively. When one of the first socket unit 20 and the second socket unit 30 is in a maintenance state, the generator car low-voltage quick access device can still be put into use, so that the use reliability is ensured. This quick access device of generator car low pressure 10 has ensured the permanent validity of its emergency action, has promoted the use reliability.

The input end of the connecting busbar 11 is used for connecting the output end of the power generation car, and the output end of the connecting busbar 11 is used for connecting the input end of the user equipment. The socket assembly 12 is configured into the first socket unit 20 and the second socket unit 30 to realize a grouping function, so that the connector of the generator car can be electrically connected with the connecting busbar 11 through the first socket unit 20 or the second socket unit 30. The breaker QF realizes the circuit breaking effect on the connecting bus bar 11.

In order to improve the safety protection performance, in one embodiment, the breaker QF is a molded case breaker QF. The molded case circuit breaker QF can automatically cut off the current when the current exceeds a trip set value, so that the operation safety of the connecting busbar 11 is protected. Therefore, the operation safety of the low-voltage quick access device of the generator car is improved. In an embodiment, the low-voltage fast access device of the generator car further includes a current transformer TA, and the current transformer TA is disposed on the connection busbar 11. Data interaction is realized through the current transformer TA, and then the electric control of the low-voltage quick access device of the generator car is realized by matching with corresponding control equipment. In order to further ensure the safety of the connecting busbar 11, in one embodiment, the low-voltage quick access device of the generator car further comprises a lightning arrester F, and the lightning arrester F is electrically connected with the connecting busbar 11. So, arrester F has played the lightning protection effect, has further ensured the security performance of this generator car low pressure quick access device.

In one embodiment, the low-voltage quick access device 10 of the generator car further includes a box 100 and a wiring partition board 200, wherein the connection busbar 11, the socket assembly 12 and the breaker QF are mounted on the box 100. The bottom end of the box body 100 is provided with a wiring chamber 111, the wiring partition board 200 is movably connected with the box body 100, and the wiring partition board 200 is covered at the opening of the wiring chamber 111. The end portion of the output end of the wiring busbar 11 is accommodated in the wiring chamber 111. The case 100 plays a role of housing. Further, the low-voltage quick access device 10 of the generator car further comprises a first box door 300, the box body 100 is provided with a first installation cavity 110, and the first installation cavity 100 accommodates the installation socket assembly 12. The box body 100 is provided with a wiring chamber 111 at the bottom of the first installation cavity 110, the wiring partition plate 200 is located in the first installation cavity 110, the wiring partition plate 200 is covered at the opening of the wiring chamber 111 and movably connected with the box body 100, and the first box door 300 is covered at the opening of the first installation cavity 110 and movably connected with the box body 100. The wiring spacer 200 is provided with a viewing aperture 210. The wiring chamber is electrically isolated by the wiring partition plate, and the wiring end of the user equipment is electrically connected with the trolley access box in the wiring chamber. The wiring chamber 111 is electrically isolated by the wiring partition board 200, and the terminals of the user equipment are electrically connected with the trolley access box in the wiring chamber 111. Accommodate installation connection socket through first installation cavity 110, the user opens first chamber door 300, can carry out the connection operation of power-generating car and this power-generating car access box, need not further to open wiring baffle 200, and wiring baffle 200 has played the effect of keeping apart the protection. Through the observation hole 210 on the wiring partition board 200, the user can observe whether the input terminal of the user equipment is accessed, so that the user can safely and conveniently judge the access condition of the user equipment.

In order to further facilitate the staff to observe whether the input end of the user equipment is connected into the power generation car access box, in one embodiment, the wiring partition plate is provided with four observation holes 210, and the four observation holes 210 are respectively in one-to-one correspondence with the tail ends of the output sides of the phase-A busbar, the phase-B busbar, the phase-C busbar and the phase-N busbar. Therefore, the accuracy and the convenience of observation and judgment are further improved. The user can clearly know whether A, B, C and N phase lines at the input end of the user equipment correspond to the connecting busbar 11 to realize electrical connection through the four observation holes 210. Thus, the indication judgment performance is improved.

When the user observes that the input terminal of the user equipment is not accessed, the user may open the wiring partition 200 to perform the wiring installation work on the input terminal of the user equipment. To facilitate opening of the wiring partition, in one embodiment, the wiring partition 200 is rotatably connected to the case 100 by a rotating shaft. Specifically, the wiring spacer 200 is rotated in the horizontal direction. Further, one end of the wiring partition board 200 is rotatably connected to the box body 100, and one end of the wiring partition board 200 is snap-locked to the box body. Thus, the user unlocks one side of the wiring partition 200 and rotates the wiring partition 200 in the horizontal direction, so that the wiring partition 200 is opened, and the wiring chamber 111 is opened, thereby facilitating the wiring operation by the user.

To further enhance the isolation and protection performance, in one embodiment, the wiring partition 200 is provided with transparent covers 220 at the observation holes 210. Further, the viewing aperture 210 is a circular aperture. Each transparent cover 220 is a circular structure, and the transparent covers 220 are matched with the observation holes 210. Thus, the transparent cover 220 provides a barrier while not affecting observability. Therefore, the isolation protection performance is further improved, and the safety performance is guaranteed. To facilitate the user's installation of each transparent cover 220, in one embodiment, each transparent cover 220 is snap-fit to the wiring spacer 200. Thus, each transparent cover 220 can be easily mounted on the wiring partition 200 to cover each viewing hole 210. Thus, the assembling convenience is improved.

When the access box of the power generation car is in a dark environment, the access condition of the user equipment is convenient for a user to observe. In one embodiment, four illumination lamps 230 are disposed on the inner side of the wiring spacer 200, and each illumination lamp 230 is disposed adjacent to one of the viewing apertures 210. In this way, the illumination lamp 230 provides illumination, so that the user can conveniently observe the illumination lamp, and the user equipment access condition can be correctly judged.

In order to facilitate the user to control the on/off of each illumination lamp 230, in one embodiment, each illumination lamp 230 is provided with a push switch 231, and the push switch 231 is disposed on the outer side surface of the wiring partition 200. By pressing the corresponding push switches 231, the corresponding illumination lamps 230 can be turned on. Thus, the convenience of opening and closing the illuminating lamps 230 is improved.

In order to ensure the illumination brightness of the illumination lamps 230, in one embodiment, each illumination lamp 230 is an LED lamp. An LED lamp is a solid-state semiconductor device capable of converting electrical energy into visible light, which can directly convert electricity into light. The LED lamp has strong brightness, good energy-saving performance and long service life. In addition, the LED lamp is solid-state packaged and belongs to a cold light source type. It can be transported and installed well and installed in any miniature and closed equipment, and is vibration-proof. Thus, the illumination brightness, the working stability and the reliability of the illuminating lamp 230 are ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a quick access device of generator car low pressure which characterized in that includes: connecting a bus bar, a socket assembly and a breaker; the socket assembly and the circuit breaker are respectively arranged on the connecting bus; the input end of the connecting bus bar is used for connecting the output end of the power generation car, and the output end of the connecting bus bar is used for connecting the input end of the user equipment; the socket assembly is positioned at the input end of the connecting bus bar, and the power generation vehicle is electrically connected with the connecting bus bar through the socket assembly;

the connecting bus comprises an A-phase bus, a B-phase bus, a C-phase bus and an N-phase bus; the socket assembly comprises a first socket unit and a second socket unit, wherein the first socket unit comprises a first A-phase socket, a first B-phase socket, a first C-phase socket and a first N-phase socket; the second socket unit comprises a second A-phase socket, a second B-phase socket, a second C-phase socket and a second N-phase socket; the first A-phase socket and the second A-phase socket are connected onto the A-phase busbar in parallel, the first B-phase socket and the second B-phase socket are connected onto the B-phase busbar in parallel, the first C-phase socket and the second C-phase socket are connected onto the C-phase busbar in parallel, and the first N-phase socket and the second N-phase socket are connected onto the N-phase busbar in parallel.

2. A generator car low-voltage quick access device as claimed in claim 1, further comprising a current transformer, said current transformer being disposed on said connecting bus bar.

3. A generator car low-voltage quick access device as claimed in claim 1, further comprising a lightning arrester, said lightning arrester being electrically connected to said connecting bus bar.

4. A generator car low voltage quick access apparatus as claimed in claim 1, wherein said circuit breaker is a molded case circuit breaker.

5. A generator car low-voltage quick access device as claimed in claim 1, further comprising a box body and a wiring partition plate, wherein said connecting bus bar, said socket assembly and said circuit breaker are mounted on said box body; the bottom end of the box body is provided with a wiring chamber, the wiring partition plate is movably connected with the box body, and the wiring partition plate covers an opening of the wiring chamber; the terminal part of the output end of the wiring busbar is contained in the wiring chamber.

6. A generator car low pressure quick access device as claimed in claim 5, characterized by that, the wiring baffle is rotatably connected with the box body through a rotating shaft.

7. A generator car low pressure quick connect device as claimed in claim 6, wherein said wiring spacer rotates in a horizontal direction.

8. A generator car low-voltage quick access device as claimed in claim 7, wherein said wiring partition board is provided with four observation holes, said four observation holes are respectively one-to-one faced to the ends of the output sides of said a-phase busbar, said B-phase busbar, said C-phase busbar and said N-phase busbar.

9. A generator car low pressure quick access device as claimed in claim 8, wherein said viewing aperture is a circular aperture.

10. A generator car low-voltage quick-access device as claimed in claim 9, wherein said wiring partition is provided with a transparent cover at each of said observation holes.