CN113629531A

CN113629531A - Drawer type rack box

Info

Publication number: CN113629531A
Application number: CN202111061999.7A
Authority: CN
Inventors: 王玉开; 郑锦康
Original assignee: Guangdong Quansheng Electric Co ltd
Current assignee: Guangdong Quansheng Electric Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2021-11-09

Abstract

The drawer type rack box comprises a box body, one or more drawer units and an automatic grounding mechanism, wherein the one or more drawer units are matched with the box body, the automatic grounding mechanism is grounded, a control circuit system is arranged in each drawer unit, a master control circuit system connected with an external power supply is further arranged in the box body, and the control circuit systems are respectively connected with the master control circuit system and a user power distribution end. The invention provides a drawer type rack box, which can be used for powering off a switch unit by pulling out a failed drawer unit and grounding the drawer unit to ensure that the failed drawer unit is not electrified in the process of replacing a control circuit system, such as replacing the switch unit. The work of other drawer units is not influenced, the complicated steps are reduced, the power failure range is narrowed, the power failure time is shortened, and the efficiency is greatly improved.

Description

Drawer type rack box

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of electric power application, in particular to a drawer type rack box.

[ background of the invention ]

Traditional outdoor rack case when components and parts such as change switch unit, need cut off the power supply to whole outdoor rack case, leads to the power failure wide range. In addition, the power failure handling needs to be approved, and the power failure procedure is complex, so that the power failure time is long. And the safety operation of grounding is required before replacement, resulting in a plurality of steps and labor and time consumption.

[ summary of the invention ]

The drawable quick-overhaul capacitor cabinet solves the technical problems of wide power failure range, long power failure time and low safety caused by replacement of components such as a switch unit and the like of the conventional outdoor rack box, and is simple in structure and reasonable in design.

The invention is realized by the following technical scheme: the drawer type rack box comprises a box body, one or more drawer units and an automatic grounding mechanism, wherein the drawer units are matched with the box body, the automatic grounding mechanism is grounded, a control circuit system is arranged in each drawer unit, a master control circuit system connected with an external power supply is also arranged in the box body, and the control circuit systems are respectively connected with the master control circuit system and a user power distribution end;

when the drawer unit is pulled open relative to the box body, the drawer unit is grounded through the automatic grounding mechanism, and the control circuit system is disconnected from the main control circuit system and the user power distribution end;

when the drawer unit is closed with the box body, the drawer unit is disconnected from the ground through the automatic grounding mechanism, and the control circuit system is conducted to electrically connect the master control circuit system and the user power distribution end.

According to the drawer-type rack box, the automatic grounding mechanism comprises grounding switches which are arranged in one-to-one correspondence with the drawer units, the drawer units are grounded when the grounding switches are opened, and the grounding connection of the drawer units is disconnected when the grounding switches are closed;

the drawer unit and the grounding switch are in mechanical linkage, so that the grounding switch is switched on when the drawer unit is pulled open, or the grounding switch is switched off and switched on when the drawer unit is closed.

The drawer-type rack box comprises a grounding terminal connected with a ground wire, an equipment terminal connected with the drawer unit and a switch disconnecting link for connecting or disconnecting the grounding terminal and the equipment terminal, wherein the drawer unit comprises a drawer body, the automatic grounding mechanism comprises a convex block arranged at the back of the drawer body, and when the drawer body is moved to be closed with the box body, the convex block pushes the switch disconnecting link to leave the grounding terminal or the equipment terminal.

In the drawer-type rack box, the switch knife-switch is hinged to the ground terminal, and an automatic closing member for keeping the switch knife-switch pressed toward the equipment terminal is arranged between the switch knife-switch and the ground terminal.

the drawer unit and the grounding switch are electrically linked, so that the grounding switch is switched on when the drawer unit is pulled open, or the grounding switch is switched off and switched on when the drawer unit is closed.

The drawer-type rack box comprises a rainproof shell, and a plurality of drawer units are horizontally or vertically arranged on the box body.

According to the drawer type rack box, a conducting device used for enabling the control circuit system to be electrified to be communicated with the main control circuit system and a user power distribution end after the drawer unit enters the box body is arranged between the box body and the drawer unit.

According to the drawer-type rack box, the conductive device comprises the three-phase copper bar arranged on the box body and connected with the main control circuit system, and the contact piece arranged on the outer wall of the drawer unit and in plug-in fit with the three-phase copper bar to be electrically connected, and the contact piece is electrically connected with the control circuit system.

According to the drawer type rack box, the master control circuit system is located in one drawer unit, the automatic grounding mechanism is arranged on the drawer unit, when the drawer unit is pulled open relative to the box body, the drawer unit is grounded through the automatic grounding mechanism, and the master control circuit system is disconnected from an external power supply and the control circuit system.

As for the drawer type rack box, the total control circuit system comprises a switch unit.

Compared with the prior art, the invention has the following advantages:

the invention provides a drawer type rack box, wherein a drawer unit and an automatic grounding mechanism are arranged in a box body, so that when the drawer unit is pulled open relative to the box body, the drawer unit is grounded through the automatic grounding mechanism, a control circuit system is disconnected from the electric connection with a master control circuit system and a user power distribution end, the drawer unit and the control circuit system in the drawer unit are in a power-off state, namely, the drawer unit is pulled open, the control circuit system can be replaced, and the drawer unit is grounded, so that the safety during operation is ensured. When the drawer unit is closed with the box body, the drawer unit is disconnected from the ground through the automatic grounding mechanism, and the control circuit system is conducted with the electric connection of the master control circuit system and the user power distribution end. At the moment, the drawer unit and the control circuit system in the drawer unit are in a power-on state, namely, after the control circuit system is replaced, the drawer unit can be used after being closed, and the drawer unit is automatically disconnected from the ground, so that a power distribution end of a user can normally obtain power. In the process of replacing the control circuit system, if the switch unit is replaced, the drawer unit with the fault is pulled out, the switch unit can be powered off, and the drawer unit is grounded, so that the drawer unit with the fault is ensured to be uncharged. The work of other drawer units is not influenced, the complicated steps are reduced, the power failure range is narrowed, the power failure time is shortened, and the efficiency is greatly improved.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in 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 creative efforts.

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a partial schematic view of the first embodiment of the present invention;

FIG. 4 is a second partial structural view of the present invention;

FIG. 5 is an enlarged view at A of FIG. 2;

FIG. 6 is a first schematic view of a capacitor module structure in a drawer unit;

FIG. 7 is a schematic diagram of a capacitor module structure in a drawer unit;

FIG. 8 is a schematic diagram of a capacitor module structure in a drawer unit;

FIG. 9 is a second schematic structural view of the present invention;

FIG. 10 is a third schematic structural view of the present invention;

FIG. 11 is an exploded view of the present invention;

fig. 12 is a fourth schematic structural view of the capacitor module in the drawer unit.

[ detailed description ] embodiments

In order to make the technical solutions and the advantages of the technical problems solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

When embodiments of the present invention refer to the ordinal numbers "first", "second", etc., it should be understood that the terms are used for distinguishing only when they do express the ordinal order in context.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The drawer type rack box comprises a box body 91, one or more drawer units 92 matched with the box body 91 and an automatic grounding mechanism 93 for grounding, wherein a control circuit system 921 is arranged in each drawer unit 92, a master control circuit system 94 connected with an external power supply is also arranged in the box body 91, and the control circuit systems 921 are respectively connected with the master control circuit system 94 and a user power distribution end;

when the drawer unit 92 is pulled open relative to the box body 91, the drawer unit 92 is grounded through the automatic grounding mechanism 93, and the control circuit system 921 is electrically disconnected from the main control circuit system 94 and the user power distribution terminal;

when the drawer unit 92 is closed with the box 91, the drawer unit 92 is disconnected from the ground by the automatic grounding mechanism 93, and the control circuit system 921 conducts the electrical connection between the general control circuit system 94 and the user power distribution terminal.

The embodiment of the invention provides a drawer type rack box, wherein a drawer unit and an automatic grounding mechanism are arranged in a box body, so that when the drawer unit is pulled open relative to the box body, the drawer unit is grounded through the automatic grounding mechanism, a control circuit system is disconnected from the electric connection with a master control circuit system and a user power distribution end, the drawer unit and the control circuit system in the drawer unit are in a power-off state, namely the drawer unit is pulled open, the control circuit system can be replaced, and the drawer unit is grounded, so that the safety during operation is ensured. When the drawer unit is closed with the box body, the drawer unit is disconnected from the ground through the automatic grounding mechanism, and the control circuit system is conducted with the electric connection of the master control circuit system and the user power distribution end. At the moment, the drawer unit and the control circuit system in the drawer unit are in a power-on state, namely, after the control circuit system is replaced, the drawer unit can be used after being closed, and the drawer unit is automatically disconnected from the ground, so that a power distribution end of a user can normally obtain power. In the process of replacing the control circuit system, if the switch unit is replaced, the drawer unit with the fault is pulled out, the switch unit can be powered off, and the drawer unit is grounded, so that the drawer unit with the fault is ensured to be uncharged. The work of other drawer units is not influenced, the complicated steps are reduced, the power failure range is narrowed, the power failure time is shortened, and the efficiency is greatly improved.

Further, as a preferred embodiment of the present invention, but not limited thereto, the automatic grounding mechanism 93 includes a grounding switch 931 provided in one-to-one correspondence with the drawer units 92, the grounding switch 931 grounds the drawer units 92 when opened, and the grounding switch 931 disconnects the grounding connection of the drawer units 92 when closed;

the drawer unit 92 and the grounding switch 931 are mechanically interlocked, so that the grounding switch 931 is turned on when the drawer unit 92 is pulled open, or the grounding switch 931 is turned off and turned on when the drawer unit 92 is closed. The mechanical linkage includes a link and the like.

Further, as a preferred embodiment of the present invention, but not limited thereto, the grounding switch 931 includes a grounding terminal 9311 connected to a ground line, an equipment terminal 9312 connected to the drawer unit 92, and a switch 9313 for connecting or disconnecting both the grounding terminal 9311 and the equipment terminal 9312, the drawer unit 92 includes a drawer body 2, the automatic grounding mechanism 93 includes a protrusion 201 provided at a back of the drawer body 2, and when the drawer body 2 moves to close the box 91, the protrusion 201 pushes the switch 9313 away from the grounding terminal 9311 or the equipment terminal 9312.

Further, as a preferred embodiment of the present invention, but not limited thereto, the switch 9313 is hinged to the ground terminal 9311, and an automatic closing member for holding the switch 9313 pressed toward the equipment terminal 9312 is provided therebetween. The automatic closure member in this embodiment is a torsion spring.

the drawer unit 92 is electrically interlocked with the grounding switch 931 so that the grounding switch 931 is turned on when the drawer unit 92 is pulled open, or the grounding switch 931 is turned off and turned on when the drawer unit 92 is closed.

Further, as a preferred embodiment of the present invention, but not limited thereto, the box 91 includes a rainproof enclosure 911, and a plurality of the drawer units 92 are horizontally or vertically arranged on the box 91. As shown in fig. 9 and 10, the rain-proof enclosure is divided into a plurality of areas, such as a metering area 912, a power distribution area 913, a capacitance area 914, and the like. The metering area can be expanded at the left part and the right part of the power distribution area; a metering table can be directly used as a metering area in the power distribution area; the left and right parts of the distribution area can be provided with capacitance areas for capacitance compensation expansion and/or provided with metering areas for metering expansion. The control circuitry may be pre-installed in the drawer unit and the drawer unit then installed in the cabinet. It is also possible to first mount the drawer unit on the cabinet and then mount the control circuitry in the drawer unit. The measurement district, the distribution district, the electric capacity district can assemble in rain-proof shell jointly, also can assemble in rain-proof shell alone.

Further, as a preferred embodiment of the present invention, but not limited thereto, a conducting device 4 is disposed between the box 91 and the drawer unit 92 for enabling the control circuit 921 to be powered to communicate with the general control circuit 94 and the user power distribution terminal after the drawer unit 92 is inserted into the box 91.

Further, as a preferred embodiment of the present invention, but not limited thereto, the conductive device 4 includes a three-phase copper bar 41 disposed on the box 91 and connected to the main control circuit system 94, and a contact piece 42 disposed on the outer wall of the drawer unit 92 and connected to the three-phase copper bar 41 in an inserting manner, wherein the contact piece 42 is electrically connected to the control circuit system 921. When the drawer unit is pulled out, the contact piece is disconnected with the three-phase copper bar, so that the power is cut off.

Further, as a preferred embodiment of the present invention, but not limited thereto, the total control circuit system 94 is located in one of the drawer units 92, the automatic grounding mechanism 93 is provided on the drawer unit 92, when the drawer unit 92 is pulled away from the box 91, the drawer unit 92 is grounded via the automatic grounding mechanism 93, and the total control circuit system 94 is electrically disconnected from the external power supply and the control circuit system 921.

Further, as a preferred embodiment of the present solution, but not limited thereto, the general control circuit system 94 includes a switch unit. The switch unit comprises a single-head switch or a double-head switch, and can be used for grounding when the single-head switch is applied; when the double-head switch is applied, one end of the double-head switch is grounded, and the other end of the double-head switch is connected with the generator. The master control circuit system can be switched with the double power supplies of other transformers, and power supply reliability is provided. For example, two power transmission lines are correspondingly connected with two master control circuit systems, and when a certain power transmission line fails, the master control circuit system corresponding to the power transmission line can be connected to another master control circuit system to obtain power. The switch unit can be a frame circuit breaker or a molded case circuit breaker; the power supply can be realized by two power supplies of other switches, and a power-on switch can also be added. The lower end of the grounding switch can be provided with a single-head grounding switch, can also be provided with a double-head grounding switch, and can also be additionally provided with a generator lead at a wire outlet end; the breaker can be a fixed breaker or a drawer breaker. The shunt switch may be fixed, or may be a withdrawable circuit-breaker or a withdrawable assembly. The branch switch can be provided with a grounding knife switch, and the branch switch drawer can be vertically placed or horizontally placed.

Further, as a preferred embodiment of the present invention, but not limited thereto, a branched three-phase copper bar 941 is disposed between the overall control circuit system 94 and each of the control circuit systems 921.

Further, as a preferred embodiment of the present invention, but not limited thereto, a capacitor module 3 is disposed in the drawer body 2, and a conductive device 4 for enabling the capacitor module 3 to be charged after the drawer body 2 is inserted into the drawer body is disposed between the drawer body 2 and the box body.

Further, as a preferred embodiment of the present invention, but not limited thereto, the conductive device 4 includes a three-phase copper bar 41 disposed on the box body and connected to a power supply, and a contact member 42 disposed on an outer wall of the drawer body 2 and engaged with the three-phase copper bar 41 for electrical connection. When the drawer body is inserted into the cabinet body, the contact piece is inserted on the three-phase copper bar, so that the electric connection is realized. When the drawer body is pulled out, the contact piece is disconnected with the three-phase copper bar for plugging, and the capacitor module is powered off.

Further, as a preferred embodiment of the present solution, but not limiting, the capacitance module 3 includes a fuse 31, a contactor 32, a thermal relay 33 and a capacitor 34 electrically connected in sequence, the fuse 31 being electrically connected with the contact member 42. In this embodiment, the fuse is equivalent to a fuse, guarantees the electrical components of circuit safe operation, also can adopt circuit breaker or other components and parts that the function is equivalent to replace. The contactor can be replaced by a silicon controlled rectifier, a compound switch or other components with equivalent functions. The thermal relay is connected with the contactor, so that overload protection is realized. The circuit breaker in the drawer body can be horizontally or vertically placed.

Further, as a preferred embodiment of the present invention, not limited thereto, a reactor 35 electrically connected to the thermal relay 33 and the capacitor 34 is provided therebetween. The reactor is connected to the capacitor.

Further, as a preferred embodiment of the present invention, but not limited thereto, the drawer body 2 is provided with a secondary terminal 6 for connecting a power supply, and the secondary terminal 6 and the contact member 42 are respectively provided on the left and right sides of the back surface of the drawer body 2. When other components need to be added in the drawer body, the power can be obtained through the secondary terminal, and the current capacitor module in the drawer body is not influenced.

Further, as a preferred embodiment of the present disclosure, but not limited thereto, the drawer body 2 is provided with a fixing device 5 for fixing the contact piece 42 on the drawer body 2, and the fixing device 5 includes an auxiliary mating connector 51, and a fixing part 52 for connecting the contact piece 42 and the auxiliary mating connector 51 in series.

Further, as a preferred embodiment of the present invention, but not limited thereto, the auxiliary mating connector 51 includes a pressing portion 511 for pressing against the drawer body back plate, and a connecting portion 512 provided on the pressing portion 511. The mounting includes the screw in this embodiment, and screw cluster contact spare and connecting portion for contact spare and supplementary cooperation plug connector top are pressed on drawer body backplate both sides, and this fixed mode is simple swift, can save other fixed establishment moreover, reduce cost. After the screw string contacts the head piece and the connecting part, the screw string is tightened through the nut and simultaneously connected with a line.

Further, as a preferred embodiment of the present invention, but not limited thereto, the drawer body 2 is provided with a separation barrier 6 that separates the capacitor 34 from the fuse 31, the contactor 32, and the thermal relay 33. In this embodiment, the capacitor may be oval or cylindrical. The isolation baffle is favorable for isolating the capacitor, and influences on the capacitor when other components break down or are short-circuited are avoided.

The invention can be applied to outdoor cable branch boxes, outdoor box-type substations and the like.

The working principle of the embodiment is as follows:

The foregoing is illustrative of embodiments provided in connection with the detailed description and is not intended to limit the disclosure to the particular forms set forth herein. Similar to the structure of the method, or several technical deductions or substitutions made on the premise of the conception of the present application, should be regarded as the protection scope of the present application.

Claims

1. Drawer type rack case, including box (91), its characterized in that: the drawer type power distribution cabinet comprises one or more drawer units (92) matched with the cabinet body (91) and an automatic grounding mechanism (93) grounded, wherein a control circuit system (921) is arranged in each drawer unit (92), a master control circuit system (94) connected with an external power supply is further arranged in the cabinet body (91), and the control circuit system (921) is respectively connected with the master control circuit system (94) and a user power distribution end;

when the drawer unit (92) is pulled open relative to the box body (91), the drawer unit (92) is grounded through the automatic grounding mechanism (93), and the control circuit system (921) is disconnected from the main control circuit system (94) and the user power distribution end;

when the drawer unit (92) is closed with the box body (91), the drawer unit (92) is grounded through the automatic grounding mechanism (93), and the control circuit system (921) conducts the electric connection between the master control circuit system (94) and the user power distribution end.

2. The drawer-type rack cabinet of claim 1, wherein: the automatic grounding mechanism (93) comprises a grounding switch (931) which is arranged in one-to-one correspondence with the drawer units (92), the grounding switch (931) grounds the drawer units (92) when opened, and the grounding switch (931) disconnects the grounding connection of the drawer units (92) when closed;

the drawer unit (92) and the grounding switch (931) are mechanically interlocked, so that the grounding switch (931) is turned on when the drawer unit (92) is opened, or the grounding switch (931) is turned off and turned on when the drawer unit (92) is closed.

3. The drawer-type rack cabinet of claim 2, wherein: the earthing switch (931) includes the earthing terminal (9311) of being connected with the ground wire, with the equipment end (9312) that drawer unit (92) is connected, and makes earthing terminal (9311) with switch knife-switch (9313) that equipment end (9312) both communicate or break off, drawer unit (92) includes drawer body (2), automatic ground mechanism (93) is including locating lug (201) at drawer body (2) back, drawer body (2) move to with when box (91) closes, lug (201) promote switch knife-switch (9313) leave earthing terminal (9311) or equipment end (9312).

4. The drawer-type rack cabinet of claim 3, wherein: the switch knife switch (9313) is hinged with the grounding terminal (9311), and an automatic closing member used for keeping the switch knife switch (9313) pressed towards the equipment terminal (9312) is arranged between the switch knife switch and the grounding terminal.

5. The drawer-type rack cabinet of claim 1, wherein: the automatic grounding mechanism (93) comprises a grounding switch (931) which is arranged in one-to-one correspondence with the drawer units (92), the grounding switch (931) grounds the drawer units (92) when opened, and the grounding switch (931) disconnects the grounding connection of the drawer units (92) when closed;

the drawer unit (92) and the grounding switch (931) are electrically interlocked, so that the grounding switch (931) is turned on when the drawer unit (92) is opened, or the grounding switch (931) is turned off and turned on when the drawer unit (92) is closed.

6. The drawer-type rack cabinet of claim 1, wherein: the box body (91) comprises a rainproof shell (911), and the drawer units (92) are horizontally or vertically arranged on the box body (91).

7. The drawer-type rack cabinet of claim 1, wherein: and a conducting device (4) used for enabling the control circuit system (921) to be electrified after the drawer unit (92) enters the box body (91) so as to communicate the master control circuit system (94) with a user power distribution end is arranged between the box body (91) and the drawer unit (92).

8. The drawer-type rack cabinet of claim 7, wherein: conducting device (4) including locate on box (91) and with three-phase copper bar (41) that total control circuit system (94) are connected, and locate on drawer unit (92) outer wall and with three-phase copper bar (41) are pegged graft and are cooperated contact spare (42) in order to carry out the electricity and connect, contact spare (42) with control circuit system (921) electricity is connected.

9. The drawer-type rack cabinet of claim 1, wherein: total control circuitry (94) is located one in drawer unit (92), be equipped with on drawer unit (92) automatic ground mechanism (93), drawer unit (92) are relative when box (91) pull open, drawer unit (92) are passed through automatic ground mechanism (93) ground connection, total control circuitry (94) disconnection and external power source with the electricity of control circuitry (921) is connected.

10. The drawer-type rack cabinet of claim 1, wherein: the overall control circuitry (94) includes a switching unit.