CN216355654U - Electrically operated drawer - Google Patents

Abstract

The utility model relates to an electric operation drawer, which comprises a drawer, and a manual operation device and an electric operation device which are respectively arranged in the drawer; the manual operation equipment comprises a plastic shell switch, a switch assembly connected with the plastic shell switch and an operation handle connected with the switch assembly; the electric operation equipment comprises a control board card, and a control module and an electric operation assembly which are arranged on the control board card, wherein the electric operation assembly is connected with the switch assembly, and the control board card controls the electric operation assembly to work through control information input by the control module. The utility model can be matched with a drawer manual operating mechanism on the market, can realize electric operation only by additionally arranging the original drawer manual operating mechanism with the improved device, does not influence the operation mode and the function of the original drawer manual operating mechanism when the improved device realizes the electric operation, realizes the simultaneous use of manual operation and electric operation, has strong universality, can effectively promote the automation process of low-voltage equipment, and meets the actual application requirements.

Description

Electrically operated drawer

Technical Field

The utility model relates to the technical field of electric operation equipment meters, in particular to an electric operation drawer.

Background

With the development of science and technology and power technology, power equipment is more and more widely used, people have higher and higher requirements on equipment, and the automation degree of the power equipment is higher and higher.

Most of the existing low-voltage GCK cabinets are manual operating mechanisms, few electric operating mechanisms exist, and the electric operating mechanisms are in one-to-one correspondence with the models of the molded case circuit breakers, so that the low-voltage GCK cabinets cannot be used universally and are extremely high in cost. The plastic case circuit breakers of a plurality of domestic models in the market cannot be matched with an electric operating mechanism, cannot realize remote control automatic operation, and are not beneficial to promoting low-voltage intellectualization.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide an electric operation drawer which can realize remote control automatic operation and push low voltage intellectualization.

An electrically operated drawer comprises a drawer, and a manual operation device and an electrically operated device which are respectively arranged in the drawer; the manual operation equipment comprises a plastic shell switch, a switch assembly connected with the plastic shell switch and an operation handle connected with the switch assembly; the electric operation equipment comprises a control board card and is arranged on the control board card, a control module and an electric operation assembly are arranged on the control board card, the electric operation assembly is connected with the switch assembly, and the control board card controls the electric operation assembly to work through control information input by the control module.

In addition, according to the electrically operated drawer provided by the utility model, the following additional technical characteristics can be provided:

further, the switch assembly comprises a linkage square shaft and a rotary operating mechanism; the first end of the linkage square shaft is connected with the operating handle, the second end of the linkage square shaft is connected with the first end of the rotary operating mechanism, and the second end of the rotary operating mechanism is connected with the plastic shell switch.

Furthermore, the rotary operating mechanism comprises a fixed plate, a loose piece rack arranged on the fixed plate, and a rotary gear matched with the loose piece rack; wherein, the fixed plate is formed by bending a steel plate.

Furthermore, the electric operation assembly comprises a driving module and a driving motor electrically connected with the driving module, and the output end of the driving motor is connected with the first end of the linkage square shaft.

Furthermore, the control board comprises a board and a key module arranged on the board, and the output end of the key module is electrically connected with the input end of the control module; wherein, the key module comprises a plurality of indicating buttons with lights.

Furthermore, the electric operation equipment also comprises a communication display meter, a voltage loop, a power loop, a current loop, a switching value input module and an R485 module, wherein the voltage loop, the power loop, the current loop, the switching value input module and the R485 module are electrically connected with the communication display meter, and the communication display meter is communicated with the control panel card through the R485 module.

Further, the voltage loop comprises a first fuse, a second fuse and a third fuse which are respectively electrically connected with the communication display meter;

the current loop comprises a first current transformer, a second current transformer and a third current transformer which are respectively electrically connected with the communication display meter.

Further, the electrically operated drawer further includes an indicator light indicating an operating state of the electrically operated device.

Further, the electric operating device also comprises a secondary plug-in which is electrically connected with the control board card through a control line.

The embodiment of the utility model also provides a control method for the electrically operated drawer, which comprises the following steps:

when the drawer is in a non-working state or the plastic shell switch is in a fault state, the electrically operated drawer is switched from an electrically operated state to a manually operated state;

when the drawer does not enable the molded case switch in the body to be in an off position, the drawer is in a working state and a molded case switch fault signal is cleared, the molded case switch is switched on, the driving motor rotates clockwise by 90 degrees with the linkage square shaft, the operating handle and the rotating operating mechanism, and the molded case switch is switched on to realize electric switching-on;

when the drawer does not allow the molded case switch in the body to be in an open position, the drawer is in a working state, and a molded case switch fault signal is cleared, the molded case switch is switched on, the driving motor reversely rotates by 90 degrees anticlockwise in the linkage square shaft, the operating handle and the rotary operating mechanism, and the molded case switch is switched on, so that electric switching-off is realized.

The electrically operated drawer comprises a drawer, and a manual operation device and an electrically operated device which are respectively arranged in the drawer; the manual operation equipment comprises a plastic shell switch, a switch assembly connected with the plastic shell switch and an operation handle connected with the switch assembly; the electric operation equipment comprises a control board card and is arranged on the control board card, a control module and an electric operation assembly are arranged on the control board card, the electric operation assembly is connected with the switch assembly, and the control board card controls the electric operation assembly to work through control information input by the control module. The utility model can be matched with a drawer manual operating mechanism on the market, can realize electric operation only by additionally arranging the original drawer manual operating mechanism with the improved device, does not influence the operation mode and the function of the original drawer manual operating mechanism when the improved device realizes the electric operation, realizes the simultaneous use of manual operation and electric operation, has strong universality, can effectively promote the automation process of low-voltage equipment, and meets the actual application requirements.

Drawings

FIG. 1 is a block diagram of an electrically operated drawer provided by an embodiment of the present invention;

FIG. 2 is a block diagram of another perspective of an electrically operated drawer according to an embodiment of the present invention;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is an exploded view of FIG. 1;

FIG. 5 is a schematic diagram of the connection between the communication display table and the peripheral circuit according to the embodiment of the present invention;

FIG. 6 is a flowchart illustrating a method for controlling an electrically-operated drawer according to an embodiment of the present invention;

FIG. 7 is a logic diagram for controlling the drawer.

The following detailed description will further illustrate the utility model in conjunction with the above-described figures.

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the utility model are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" 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. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must be in a particular orientation, constructed or operated in a particular manner, and is not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified 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 connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, in view of the above problems, an embodiment of the present invention discloses an electrically-operated drawer, which includes a drawer, and a manually-operated device 10 and an electrically-operated device 20 respectively disposed in the drawer. The manual operation device 10 and the electric operation device 20 are respectively used for manually opening and closing the drawer and remotely opening and closing the drawer.

Specifically, the drawer comprises a drawer body and an operation box arranged at the bottom of the drawer body, the drawer body is detachably connected with the operation box, and a user can control the opening and closing of the drawer body by controlling the opening and closing of the operation box, namely the opening and closing of the whole drawer.

Further, the manual operating device 10 includes a molded case switch 11, a switch assembly 12 connected to the molded case switch 11, and an operating handle 13 connected to the switch assembly 12. The switch assembly 12 includes a linkage square shaft 121 and a rotary operating mechanism 122. A first end of the linkage square shaft 121 is connected to the operating handle 13, a second end of the linkage square shaft 121 is connected to a first end of the rotating operating mechanism 122, and a second end of the rotating operating mechanism 122 is connected to the molded case switch 11. When the operating handle 13 rotates 90 degrees clockwise, the rotating operating mechanism is driven by the linkage square shaft 121 to rotate 90 degrees clockwise, so that the closing of the plastic shell switch is realized, and when the rotating operating mechanism rotates reversely, the rotating operating mechanism rotates 90 degrees counterclockwise, so that the opening of the plastic shell switch is realized.

The rotating mechanism 122 includes a fixed plate, a movable rack disposed on the fixed plate, and a rotating gear cooperating with the movable rack. The fixing plate is formed by bending a steel plate and is shaped like a Chinese character 'ji'.

Specifically, the fixed plate is provided with a limiting circular hole which is matched with the rotary gear, and the rotary gear can rotate in the hole; the U-shaped groove is matched with the movable block rack, and the movable block rack can slide in the groove; the fixed plate is provided with a fixed hole which is matched and fixed with the molded case circuit breaker. The center of the rotating gear is provided with a square hole, and the rear part of the rotating gear is provided with a gear. The movable block rack is provided with an array gap to play a role of a rack and is matched with the rotating gear. The loose piece rack is provided with an array gap for the purpose of a rack to be matched with the rotating gear, and a bayonet is arranged to be matched with the operating handle of the molded case circuit breaker; the rotating gear can rotate 90 degrees clockwise, the gear drives the rack to move, the loose piece rack slides leftwards, the bayonet drives the operating handle to act, and the plastic shell switch is switched on. Otherwise, the plastic shell switch is opened.

Further, electrically operated equipment 20 includes the control board card, and locates control module 21 and electric operating unit 22 on the control board card, electric operating unit 21 with switch module 12 is connected, the control board card passes through the control information control of control module 21 input electric operating unit 22 work. Wherein the control module 21 adopts a PL controller.

Specifically, the electric operating assembly 22 includes a driving module and a driving motor electrically connected to the driving module, and an output end of the driving motor is connected to the first end of the linkage square shaft. The driving module is used for driving the driving motor; the driving motor adopts a hollow shaft speed reducing motor with a 24V 545 motor of 5 r/min. When the driving motor rotates, the linkage square shaft is driven to rotate, so that the rotary operating mechanism and the operating handle are driven to rotate, and the plastic shell switch is switched on and off.

Further, the electric operation device 20 further includes a communication display meter PJ, and a voltage circuit, a power circuit, a current circuit, a switching value input module and an R485 module electrically connected to the communication display meter PJ, wherein the communication display meter communicates with the control board card through the R485 module.

Specifically, please refer to fig. 5, the voltage circuit includes a first fuse FU1, a second fuse FU2, and a third fuse FU3 electrically connected to the communication display meter, respectively. Wherein the first fuse FU1 is electrically connected with the V1 wiring port of the communication display PJ through the A601 wire number; the second fuse FU2 is electrically connected with a V2 wiring port of the communication display meter PJ through a B601 wire number; the third fuse FU3 is electrically connected to the V3 connection port of the communication display meter PJ through a C601 wire number. The acquisition of three-phase voltage PJ (V1, V2 and V3) is realized through voltage loop acquisition, and FU1-FU3 is arranged in the loop to realize voltage protection on the secondary circuit.

The power supply loop adopts single-phase alternating current for power supply. Rated voltage: AC220V, allowed offset: -20% to + 20%; when the power supply is powered on, powered off, and the power supply voltage slowly rises or slowly falls, the power supply should not be mistakenly operated or mistakenly send signals, and when the power supply is recovered to be normal, the power supply should automatically recover to be normal. The whole communication shows table power supply circuit and provides the power for it, sets up fourth circuit breaker FU4 at the phase line, realizes voltage protection to this secondary circuit.

The current loop comprises a first current transformer TAa, a second current transformer TAb and a third current transformer TAC which are respectively and electrically connected with the communication display meter. The current loop is used for collecting the current, the current loop consists of current transformers TAa to Tac and a current loop of a low-voltage terminal PJ (Ia, Ib and Ic), and the homonymous ends of the current transformers TAa to Tac are consistent with the homonymous end of the low-voltage terminal PJ, so that three-phase current collection is realized; and calculating analog quantities such as active power, reactive power, apparent power, power factor, frequency and the like. Thereby enabling telemetry of the entire primary loop.

Specifically, the switching value input module comprises 4 paths of switching value acquisition, and can acquire a QF position of a plastic shell switch, a QF fault signal and a QK remote control position of a change-over switch, and the input value input is an idle contact. The QF position of the plastic casing switch can be remotely judged, and remote signaling and remote control of the plastic casing switch can be realized; the circuit has 2 switching value outputs. The device has an event recording function, can record switching value displacement, fault items, protection items and the like respectively, and has fault judgment such as short circuit, overload, open-phase judgment, phase sequence error, zero breaking and the like.

Specifically, the R485 module is provided with at least 1 RS-485 standard communication interface; communication protocols such as Modbus are supported; short-range wireless communication is supported. The PJ communication loop in the loop can be accessed to a local monitoring or system internet of things platform. And the three-remote control of the whole primary loop is realized.

Further, the electrically operated device further comprises a secondary plug-in 24 electrically connected with the control board card through a control line. The control board comprises a board and a key module 23 arranged on the board, and the output end of the key module 23 is electrically connected with the input end of the control module 21. The key module 23 includes a plurality of lighted indication buttons for inputting commands.

Further, the electrically operated drawer further includes an indicator light indicating an operating state of the electrically operated device.

The utility model provides an electric operation drawer, which comprises a drawer, and a manual operation device and an electric operation device which are respectively arranged in the drawer; the manual operation equipment comprises a plastic shell switch, a switch assembly connected with the plastic shell switch and an operation handle connected with the switch assembly; the electric operation equipment comprises a control board card and is arranged on the control board card, a control module and an electric operation assembly are arranged on the control board card, the electric operation assembly is connected with the switch assembly, and the control board card controls the electric operation assembly to work through control information input by the control module. The utility model can be matched with a drawer manual operating mechanism on the market, can realize electric operation only by additionally arranging the original drawer manual operating mechanism with the improved device, does not influence the operation mode and the function of the original drawer manual operating mechanism when the improved device realizes the electric operation, realizes the simultaneous use of manual operation and electric operation, has strong universality, can effectively promote the automation process of low-voltage equipment, and meets the actual application requirements.

Referring to fig. 6 to 7, an embodiment of the present invention further provides an electrically operated drawer control method, which is suitable for the electrically operated drawer, and the method includes steps S21 to S23:

step S21, when the drawer is in a non-working state or the plastic shell switch is in a fault state, the electric operation drawer is switched from an electric operation state to a manual operation state;

step S22, when the drawer does not enable the plastic shell switch in the body to be positioned, the drawer is in a working state and the plastic shell switch fault signal is cleared, the plastic shell switch is switched on, the driving motor positively rotates to drive the square shaft, the operating handle and the rotating operating mechanism to clockwise rotate by 90 degrees, and the plastic shell switch is switched on to realize electric switching-on;

and step S23, when the drawer does not allow the plastic shell switch in the body to be separated, the drawer is in a working state and the plastic shell switch fault signal is cleared, the plastic shell switch is switched on, the driving motor reversely rotates 90 degrees anticlockwise in the linkage square shaft, the operating handle and the rotary operating mechanism, and the plastic shell switch is switched on to realize electric brake opening.

Specifically, taking the control module as a PLC controller as an example, the following description is made:

the PLC collects the input quantity: when the X6 is high (the drawer is in the non-operating position), no output is output from Y0, Y1, Y4, and Y5, and the operation cannot be performed electrically, but only manually.

The PLC collects the input quantity: the X5 low level (plastic casing switch failure), Y0, Y1, Y4, Y5 do not export, can not electric operation, only manual operation.

The PLC collects the input quantity: when the X4 low level (the moulded case switch is off), the X6 low level (the drawer is in the working position) and the X5 low level (the moulded case switch fault signal is cleared), the electric switch-on can be realized. The low level is triggered in a short time through X0 (triggered by a closing button), Y0 and Y4 output a motor to rotate forwards at the same time, an electric operating assembly operates to drive a linkage square shaft, an operating handle and a rotating gear in a rotating operating mechanism to rotate 90 degrees clockwise, a movable block rack slides leftwards, a bayonet is driven by a plastic shell breaker to move the operating handle to act, the plastic shell breaker is closed to realize the closing of a plastic shell switch, and an auxiliary contact point (a plastic shell switch is positioned) of the plastic shell switch is switched from the low level to the high level; the plastic shell switch auxiliary contact (the plastic shell switch closing position) is switched from a high level to a low level; y1 and Y5 output motor reverse rotation at the same time, X7 (stop position auxiliary point of electric operation assembly) rises string trigger, and the motor stops. And completing electric switching-on.

The PLC collects the input quantity: when the X3 low level (the molded case switch is closed), the X6 low level (the drawer is in the working position) and the X5 low level (the molded case switch fault signal is cleared), the electric brake can be opened. The low level is triggered in a short time through X1 (triggered by a closing button), Y1 and Y5 output motors reversely at the same time, an electric operating assembly operates to drive a square shaft, an operating handle and a rotating gear in a rotating operating mechanism to rotate 90 degrees anticlockwise, a movable block rack slides leftwards, a bayonet is driven by a plastic shell breaker to move the operating handle, the plastic shell breaker is closed to realize the closing of a plastic shell switch, and a plastic shell switch auxiliary contact point X4 (plastic shell switch position division) is switched from the high level to the low level; the molded case switch auxiliary contact X3 (molded case switch closing position) is switched from low level to high level; y0 and Y4 output motor reverse rotation at the same time, X7 (stop position auxiliary point of electric operation assembly) rises string trigger, and the motor stops. And (5) completing electric brake opening.

In addition, the drawer can be provided with a manual/automatic change-over switch on the drawer panel, when the switch is turned on manually, the electric operation of the drawer can be realized locally, and when the switch is turned on automatically, the electric operation of the drawer can be realized remotely.

According to the control method for the electrically operated drawer, when the drawer is in a non-working state or a plastic shell switch is in a fault state, the electrically operated drawer is switched from an electrically operated state to a manually operated state; when the drawer does not enable the molded case switch in the body to be in an off position, the drawer is in a working state and a molded case switch fault signal is cleared, the molded case switch is switched on, the driving motor rotates clockwise by 90 degrees with the linkage square shaft, the operating handle and the rotating operating mechanism, and the molded case switch is switched on to realize electric switching-on; when the drawer does not allow the molded case switch in the body to be in an open position, the drawer is in a working state, and a molded case switch fault signal is cleared, the molded case switch is switched on, the driving motor reversely rotates by 90 degrees anticlockwise in the linkage square shaft, the operating handle and the rotary operating mechanism, and the molded case switch is switched on, so that electric switching-off is realized. The utility model can be matched with a drawer manual operating mechanism on the market, can realize electric operation only by additionally arranging the original drawer manual operating mechanism with the improved device, does not influence the operation mode and the function of the original drawer manual operating mechanism when the improved device realizes the electric operation, realizes the simultaneous use of manual operation and electric operation, has strong universality, can effectively promote the automation process of low-voltage equipment, and meets the actual application requirements.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as 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 present 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 (9)

1. An electrically operated drawer is characterized by comprising a drawer, and a manual operation device and an electrically operated device which are respectively arranged in the drawer; the manual operation equipment comprises a plastic shell switch, a switch assembly connected with the plastic shell switch and an operation handle connected with the switch assembly; the electric operation equipment comprises a control board card and is arranged on the control board card, a control module and an electric operation assembly are arranged on the control board card, the electric operation assembly is connected with the switch assembly, and the control board card controls the electric operation assembly to work through control information input by the control module.

2. The electrically operated drawer of claim 1, wherein the switch assembly includes a linkage square shaft and a rotary operating mechanism; the first end of the linkage square shaft is connected with the operating handle, the second end of the linkage square shaft is connected with the first end of the rotary operating mechanism, and the second end of the rotary operating mechanism is connected with the plastic shell switch.

3. The electrically operated drawer according to claim 2, wherein the rotary actuator comprises a fixed plate, a loose piece rack disposed on the fixed plate, and a rotary gear cooperating with the loose piece rack; wherein, the fixed plate is formed by bending a steel plate.

4. The electrically operated drawer according to claim 3, wherein the electrically operated assembly comprises a drive module and a drive motor electrically connected to the drive module, wherein an output end of the drive motor is connected to the first end of the linkage square shaft.

5. The electrically operated drawer according to claim 1, wherein the control board comprises a board and a key module disposed on the board, and an output of the key module is electrically connected to an input of the control module; wherein, the key module comprises a plurality of indicating buttons with lights.

6. The electrically operated drawer according to claim 1, wherein the electrically operated device further comprises a communication display meter, and a voltage circuit, a power circuit, a current circuit, a switching value input module and an R485 module electrically connected to the communication display meter, wherein the communication display meter communicates with the control board card through the R485 module.

7. The electrically operated drawer according to claim 6,

the voltage loop comprises a first fuse, a second fuse and a third fuse which are respectively electrically connected with the communication display meter;

the current loop comprises a first current transformer, a second current transformer and a third current transformer which are respectively electrically connected with the communication display meter.

8. The electrically operated drawer of claim 1, further comprising an indicator light indicating an operational status of the electrically operated device.

9. The electrically operated drawer of claim 1, wherein the electrically operated device further comprises a secondary plug electrically connected to the control board via a control line.

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