CN219372288U - Frequency conversion control module and elevator frequency conversion control cabinet - Google Patents

Abstract

The utility model relates to a variable frequency control module and an elevator variable frequency control cabinet, wherein the variable frequency control module comprises: a driving module; a power module; the control module is electrically connected with the driving module and the power supply module respectively; the driving module is respectively and sequentially arranged with the power module and the control module along the first direction; along the second direction, the power supply module and the control module are at least partially overlapped; the second direction is perpendicular to the first direction. The variable frequency control module provided by the utility model has higher integration level and smaller volume, and is more convenient to overhaul and maintain.

Description

Frequency conversion control module and elevator frequency conversion control cabinet

Technical Field

The utility model relates to the technical field of elevator equipment, in particular to a variable frequency control module and an elevator variable frequency control cabinet.

Background

This section provides merely background information related to the present disclosure and is not necessarily prior art.

The elevator frequency conversion control cabinet is a device for controlling the operation of an elevator, and mainly comprises a control system, wherein the control system mainly comprises a driving part, a control part, a power supply part, an accidental movement protection part of a car and the like, and all the parts are connected through cables and are jointly installed in a control cabinet body. Therefore, each part in the existing elevator variable frequency control cabinet is independently installed, occupied space is large, cables are easy to cross, the whole utilization rate of the cabinet body is low, operation is inconvenient, and the volume of the cabinet body is large.

Disclosure of Invention

The utility model aims to at least solve the problems of low overall utilization rate and large product of the cabinet body of the existing elevator variable frequency control cabinet body.

The aim is achieved by the following technical scheme:

according to a first aspect of the present utility model, there is provided a variable frequency control module, the variable frequency control module comprising: a driving module; a power module; the control module is electrically connected with the driving module and the power supply module respectively; the driving module is respectively arranged with the power module and the control module in sequence along a first direction; the power supply module and the control module are at least partially overlapped along a second direction; the second direction is perpendicular to the first direction.

According to the variable frequency control module provided by the utility model, the control module and the power module are arranged in a laminated manner so as to reduce the length of the connecting cable between the modules and effectively reduce the space volume occupied by the modules. It should be further noted that, because the driving module occupies a larger volume relative to the control module and the power module, the driving module, the control module and the power module are respectively arranged in different areas along the first direction, so that the driving module, the control module and the power module are not overlapped along the second direction (i.e. the direction perpendicular to the mounting plate), the space occupied by the variable frequency control module along the thickness direction is reduced to the greatest extent, and the whole volume of the variable frequency control module is reduced.

In addition, the frequency conversion control module can also have the following additional technical characteristics:

in some embodiments of the utility model, further comprising: the mounting plate comprises a first main body part and a second main body part which are connected, and the first main body part and the second main body part are sequentially arranged along the first direction; the driving module is installed in the first main body part, and the power module and the control module are both installed in the second main body part.

In some embodiments of the utility model, the mounting plate has a front face and a back face; the driving module comprises a driving control element and a heat dissipation demand element arranged on the driving control element, the driving control element is arranged on the front surface of the first main body part, and the heat dissipation demand element is arranged on the back surface of the first main body part; the control module is arranged on the front surface of the second main body part, and the power supply module is arranged on the back surface of the second main body part.

In some embodiments of the utility model, the first body portion and the second body portion are parallel and not in the same plane; the second body portion is closer to the drive control element relative to the heat dissipation demand element in a direction perpendicular to the mounting plate.

In some embodiments of the utility model, the first body portion is provided with a first relief structure and a second relief structure; the driving control element comprises a capacitor plate and a driving plate, wherein the capacitor plate and the driving plate are arranged on the front surface of the first main body part, the driving plate is provided with an IGBT module, and the capacitor plate is electrically connected with the driving plate; the heat dissipation demand component comprises an electrolytic capacitor and a radiator, wherein the electrolytic capacitor penetrates through the first avoidance structure and is installed on the capacitor plate, and the IGBT module is in heat conduction connection with the radiator through the second avoidance structure.

In some embodiments of the utility model, the capacitive plates are stacked with the drive plates in a direction perpendicular to the mounting plate.

In some embodiments of the utility model, the drive control element further comprises: a precharge board electrically connected with the driving board; along the direction perpendicular to the mounting panel, the precharge plate, the drive plate and the capacitor plate are arranged in a three-layer overlapping manner.

In some embodiments of the utility model, the control module includes: an electronic control motherboard mounted on the front surface of the second main body part; the electric control core board is arranged on the electric control motherboard and is electrically connected with the electric control motherboard; the power module comprises a power panel which is arranged on the front and back surfaces of the second main body part; along the direction perpendicular to the mounting panel, automatically controlled core board automatically controlled motherboard with the power strip divide into the three-layer overlapping setting.

In some embodiments of the present utility model, the variable frequency control module further includes: the car accidental movement protection module is arranged on the front surface of the second main body part and is electrically connected with the control module; the front face of the second main body part comprises a first installation area and a second installation area, the control module is arranged in the first installation area, and the car accidental movement protection module is arranged in the second installation area.

In some embodiments of the present utility model, the car unexpected movement protection module includes a UCMP board, which is sequentially disposed with the electronic control motherboard in a direction parallel to a board surface of the second main body portion and is stacked with the power board in the second direction.

In some embodiments of the utility model, further comprising: and the separator is connected with the mounting plate and penetrates between the radiator and the electrolytic capacitor.

According to a second aspect of the utility model, an elevator frequency conversion control cabinet is presented, comprising: a cabinet body; and the variable frequency control module is arranged in the cabinet body.

In some embodiments of the utility model, the elevator frequency conversion control cabinet further comprises: the functional module is arranged on the cabinet body and is provided with an operation end and a connection end, the operation end is positioned outside the cabinet body, and the connection end is positioned inside the cabinet body and is in communication connection with the variable frequency control module.

In some embodiments of the utility model, the functional module includes: the control panel is arranged on the outer side wall of the cabinet body; the button assembly is arranged on the control panel and comprises at least one control button, and the connecting end of the control button is in communication connection with the control module and is used for outputting control instructions to the control module.

In some embodiments of the utility model, the control button comprises: the emergency stop button and the change-over switch penetrate through the control panel, and the connection ends of the emergency stop button and the change-over switch are both in communication connection with the control module; the control panel is provided with a mounting groove, the mounting groove is sunken towards the inside of the cabinet body, the operation end of the scram button and the operation end of the change-over switch are accommodated in the mounting groove, and the connection end of the scram button and the connection end of the change-over switch are located in the inside of the cabinet body.

In some embodiments of the present utility model, the cabinet body is provided with a first opening, and the driving module in the variable frequency control module is provided with a power connection terminal; the functional module includes: the power line row seat comprises a seat body and a power interface arranged on the seat body, wherein the seat body is clamped in the first opening, and the power interface is electrically connected with the power connection terminal.

In some embodiments of the utility model, the functional module includes: the signal line interface assembly is provided with at least one signal line interface, and the signal line interface is in communication connection with the control module.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 schematically illustrates a schematic structure of a variable frequency control module for a front view angle according to an embodiment of the present utility model;

fig. 2 schematically illustrates a schematic structure of a variable frequency control module for an upper left viewing angle according to an embodiment of the present utility model;

fig. 3 schematically illustrates a schematic structure of a variable frequency control module for a left lower viewing angle according to an embodiment of the present utility model;

fig. 4 schematically shows a part explosion schematic of an elevator frequency conversion control cabinet according to an embodiment of the utility model;

fig. 5 schematically illustrates a schematic view of an elevator variable frequency control cabinet according to a first perspective of an embodiment of the utility model;

Fig. 6 schematically illustrates a schematic view of an elevator variable frequency control cabinet according to a second perspective of an embodiment of the utility model;

FIG. 7 schematically illustrates a structural schematic of an interface board assembly according to an embodiment of the utility model;

fig. 8 schematically shows a structural schematic diagram of a control panel according to an embodiment of the present utility model;

fig. 9 schematically illustrates a schematic structure of a power line socket and a driving module according to an embodiment of the present utility model;

fig. 10 schematically illustrates a schematic view of a power connection terminal according to a first view angle of an embodiment of the present utility model;

fig. 11 schematically illustrates a schematic view of a power connection terminal according to a second view angle of an embodiment of the present utility model;

fig. 12 schematically illustrates a structural schematic view of a power line socket according to an embodiment of the present utility model from an upper left view angle;

fig. 13 schematically illustrates a schematic structural view of a power line socket and a power connection terminal in a top view according to an embodiment of the present utility model;

fig. 14 schematically shows a schematic cross-sectional structure of A-A in fig. 13.

The reference numerals are as follows:

100-a variable frequency control module;

10-mounting plates, 11-first main body parts, 111-first avoidance structures, 12-second main body parts, 13-transitional connecting parts, 101-front faces, 102-back faces, 14-mounting parts and 103-partition boards;

30-driving module, 31-driving control element, 311-capacitor plate, 312-driving plate, 313-pre-charging plate, 32-heat dissipation requirement element, 321-electrolytic capacitor, 322-heat radiator, 33-power connection terminal, 331-terminal housing, 332-terminal interface, 333-conductive terminal, 3331-pin;

40-power module, 41-power panel;

50-control modules, 51-electric control mother boards and 52-electric control core boards;

60-car accidental movement protection module, 61-UCMP plate;

200-an elevator variable frequency control cabinet;

201-cabinet, 2011-chassis, 2012-upper cover plate, 2013-lower cover plate, 2014-back cover plate, 2015-first opening, 2016-second opening;

20-a functional module;

210-control panel, 220-button assembly, 2101-mounting slot, 2021-button control panel, 2025-travel button, 2027-change-over switch, 2028-scram button;

230-signal line interface assembly, 2310-signal interface panel, 2311-body portion, 2312-connection portion, 2313-boss, 2320-interface circuit board, 2330-signal line interface;

240-power cord row seat, 2410-seat body, 2420-plug protrusion, 24201-opening, 2411-power interface, 2412 screw hole, 2413 wire placement part, 2430-conductive piece, 2440-fastener.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

As shown in fig. 1, according to an embodiment of the present utility model, a variable frequency control module 100 is provided.

The variable frequency control module 100 comprises a mounting plate 10, a driving module 30, a power module 40 and a control module 50, wherein the driving module 30, the power module 40 and the control module 50 are fixedly mounted on the mounting plate 10, and the control module 50 is electrically connected with the power module 40 and the driving module 30 respectively. The control module 50 processes the input and output of the external signal and responds to the signal, and sends a control instruction to the driving module 30 according to the signal, so that the driving module 30 controls the operation of elevator components (such as an elevator dragging machine), realizes the up-and-down operation of the elevator, and the power module 40 is used for supplying power to the control module 50 and the driving module 30.

In this embodiment, as shown in connection with fig. 1-3, the mounting plate 10 includes a first body portion 11 and a second body portion 12. Specifically, the mounting board 10 is an integrally rectangular plate-shaped member, and is bent along two mutually parallel fold lines (the fold line direction is perpendicular to the length direction of the mounting board 10) by a sheet metal stamping process, so that the mounting board 10 is in a bent structure, and forms a first main body portion 11, a second main body portion 12 and a transitional connection portion 13, the first main body portion 11 and the second main body portion 12 are connected through the transitional connection portion 13, the transitional connection portion 13 is perpendicular to the first main body portion 11 and the second main body portion 12, the first main body portion 11 and the second main body portion 12 are mutually parallel, the first main body portion 11 and the second main body portion 12 are sequentially arranged along a first direction, and the first main body portion 11 and the second main body portion 12 are spaced apart and do not coincide, so that mounting spaces with different heights are respectively formed in the first main body portion 11 and the second main body portion 12. It will be appreciated that in other embodiments, the mounting plate 10 is integrally cast or the mounting plate 10 is integrally formed by a metal cutting process.

In this embodiment, the first direction is parallel to both the first body portion 11 and the second body portion 12, and the second direction is perpendicular to both the first body portion 11 and the second body portion 12.

Because the driving module 30 occupies a larger volume relative to the control module 50 and the power module 40, the driving module 30 is disposed in the first main body portion 11, and the control module 50 and the power module 40 are disposed in the second main body portion 12, so that the driving module 30 and the control module 50 and the driving module 30 and the power module 40 do not overlap each other in the thickness direction (i.e., the direction perpendicular to the mounting board 10), so as to reduce the space occupied by the variable frequency control module 100 in the thickness direction to the greatest extent. In addition, the control module 50 and the power module 40 are stacked to reduce the length of the connection cable between the modules, and effectively reduce the space volume occupied by the control module 50 and the power module 40 in the thickness direction, so as to facilitate reducing the overall volume of the variable frequency control module 100.

In some embodiments of the present utility model, as shown in fig. 1, the mounting board 10 has a front surface 101 and a rear surface 102, and the control module 50 and the power module 40 are respectively disposed on the front surface and the rear surface of the second body portion 12, so that stacking of the control module 50 and the power module 40 on one side of the mounting board 10 is avoided, on one hand, assembly or disassembly of the control module 50 and the power module 40 is facilitated, and on the other hand, post-maintenance and repair of the variable frequency control module 100 are facilitated, and no disassembly of one of the control module 50 and the power module 40 is required when the other is maintained or repaired.

The driving module 30 includes a driving control element 31 and a heat dissipation requirement element 32, and it is understood that the driving control element 31 mainly includes a PCB board and an electronic control device (such as a chip, etc.), and the heat dissipation requirement element 32 mainly includes a high-heat electronic component and a high-heat device such as a heat sink 322 during operation. The driving control element 31 and the heat dissipation requirement element 32 are respectively arranged on the front side and the back side of the first main body portion 11 to separate the high-heat device of the driving module 30 from the electric control device, so as to reduce the influence of high temperature generated by the high-heat device on the electric control device.

It should be noted that, the heat dissipation requirement element 32 and the power module 40 are both disposed on the opposite surface of the mounting board 10, and the driving control element 31 and the control module 50 are both disposed on the front surface 101 of the mounting board 10. The power module 40 generates more heat during operation, so that the power module 40 and the heat dissipation requirement element 32 are both arranged on the same side of the mounting board 10, so that heat dissipation is concentrated on the high-heat-generation element in the frequency conversion control module 100, heat dissipation efficiency is improved, influence of heat dissipation of the power module 40 and the heat dissipation requirement element 32 on the control module 50 and the driving control element 31 is reduced, working environment temperature of the control module 50 and the driving control element 31 is reduced, operation stability of electronic devices in the control module 50 and the driving control element 31 is improved, and operation faults of the frequency conversion control module 100 are reduced.

In the present embodiment, as shown in fig. 1, the first body portion 11 and the second body portion 12 are parallel to each other, and the first body portion 11 and the second body portion 12 are spaced apart from each other in a direction perpendicular to the mounting plate 10 so that mounting spaces having different heights are formed in the first body portion 11 and the second body portion 12, respectively. In addition, along the direction perpendicular to the mounting board 10, the second body portion 12 is closer to the driving control element 31 relative to the heat dissipation demand element 32, so that the second body portion 12, together with the control module 50 and the power module 40, is wholly sunken relative to the heat dissipation demand element 32, and an avoidance space for air circulation is formed on one side of the back surface of the second body portion 12, which is beneficial to improving the air circulation efficiency of the space on the back surface side of the mounting board 10, and further improving the heat dissipation efficiency of the heat dissipation demand element 32 and the power module 40.

In the present embodiment, as shown in fig. 1, 2 and 3, the drive control element 31 includes: the capacitor plate 311, the driving plate 312, and the IGBT module provided on the driving plate 312. The heat dissipation demand element 32 includes an electrolytic capacitor 321 and a heat sink 322. Specifically, the capacitor plate 311 is fixedly mounted on the front surface 101 of the first body portion 11, the driving plate 312 is mounted on the front surface 101 of the first body portion 11 and is located at a side of the capacitor plate 311 facing away from the first body portion 11, and the driving plate 312 overlaps the capacitor plate 311 in a partial region in a direction perpendicular to the first body portion 11. The first avoidance structure 111 is arranged in the area of the first main body portion 11 corresponding to the capacitor plate 311, the electrolytic capacitor 321 is arranged on the capacitor plate 311, and the electrolytic capacitor 321 is arranged through the first avoidance structure 111, so that the main body portions of the electrolytic capacitor 321 are all located on one side of the reverse surface of the mounting plate 10. The first main body portion 11 of the driving plate 312, which is opposite to the area where the capacitor plate 311 is not overlapped, is provided with a second avoidance structure (not shown in the figure), the radiator 322 is mounted on the reverse side of the first main body portion 11 and covers the second avoidance structure, the IGB module is located between the driving plate 312 and the radiator 322, and the IGBT module passes through the second avoidance structure and is in heat conduction connection with the radiator 322, so that heat dissipation of the IGBT module is achieved by using the radiator 322.

It should be noted that, by setting the first avoidance structure 111 and the second avoidance structure, the electrolytic capacitor 321 and the IGBT module are respectively avoided in the thickness direction (i.e., the direction perpendicular to the mounting board 10), so as to avoid that the mounting board 10 occupies extra space in the thickness direction, thereby reducing the size of the whole electric control assembly in the thickness direction. It is understood that the first relief structure 111 and the second relief structure may be groove-like structures formed on the mounting plate 10, which penetrate through both the front and back sides of the mounting plate 10. Alternatively, the first avoidance structure 111 and the second avoidance structure may be provided in a hole-like structure, which is not particularly limited herein.

Note that IGBT (Insulated Gate Bipolar Transistor) is an insulated gate bipolar transistor, and is a composite fully-controlled voltage-driven power semiconductor device composed of a (Bipolar Junction Transistor, BJT) bipolar transistor and an insulated gate field effect transistor (Metal Oxide Semiconductor, MOS). The IGBT module is a modularized semiconductor product formed by bridging and packaging an IGBT (insulated gate bipolar transistor chip) and an FWD (free wheeling diode chip) through a specific circuit; the encapsulated IGBT module is directly applied to equipment such as a frequency converter. In the present utility model, the IGBT module may be a packaged IGBT module, or a plurality of IGBT single tubes may be integrated onto the drive board 312 instead of the packaged IGBT module.

In the present embodiment, as shown in fig. 3, the drive control element 31 further includes a precharge board 313, the precharge board 313 is provided with a precharge circuit, and the precharge board 313 is electrically connected to the drive board 312. The precharge plate 313 mainly protects the entire loop when the variable frequency control module 100 is started. Specifically, by adding the precharge circuit in the driving module 30, the working state of the variable frequency power unit can be detected during low voltage test, so that the heavy current impact of the high voltage sharply increased during high voltage closing of the driving module 30 on the energy storage capacitor in the variable frequency power unit is effectively reduced, the failure rate of the frequency converter in the driving module 30 is reduced, and the reliability of the variable frequency control module 100 is further improved.

In this embodiment, the precharge plate 313, the driving plate 312 and the capacitor plate 311 are all disposed on one side of the front surface 101 of the first body portion 11, and the precharge plate 313, the driving plate 312 and the capacitor plate 311 are disposed in three layers along the direction perpendicular to the mounting plate 10, where the precharge plate 313 is located at the outermost side, the driving plate 312 is located between the precharge plate 313 and the capacitor plate 311, and the capacitor plate 311 is located between the driving plate 312 and the first body portion 11. Divide into the three-layer setting with precharge plate 313, drive plate 312 and electric capacity board 311, be favorable to carrying out the winding displacement to precharge plate 313, drive plate 312 and electric capacity board 311 between be connected, reduce cable quantity and length between each layer circuit board, save cable material cost to reduce the wiring degree of difficulty, and can effectually reduce the whole volume of variable frequency control module 100.

In the present embodiment, as shown in fig. 2 and 3, the control module 50 includes an electronic control motherboard 51 and an electronic control core board 52, and the power module 40 includes a power panel 41. Wherein, the electronic control motherboard 51 is mounted on the front surface 101 of the second main body portion 12, and the electronic control core board 52 is mounted on the electronic control motherboard 51 and electrically connected with the electronic control motherboard 51. The electric control core board 52 is connected with the driving module 30 through the electric control motherboard 51 and the flat cable to exchange control signals, and the driving module 30 is controlled by the electric control core board 52 to realize the control functions of the elevator traction machine, such as lifting, descending, stopping door opening, stability, damping and the like of the elevator traction machine. The power panel 41 is installed on the reverse side of the second main body portion 12, and the electric control core board 52, the electric control motherboard 51 and the power panel 41 are divided into three layers to be overlapped, so that the electric control core board 52, the electric control motherboard 51 and the power panel 41 are connected in a wiring manner, the number and the length of cables between all layers of circuit boards are reduced, the cable material cost is saved, the wiring difficulty is reduced, and the overall size of the variable frequency control module 100 can be effectively reduced.

In this embodiment, as shown in fig. 3, the elevator control drive apparatus further includes: the car accidentally moves the protection module 60. Specifically, the car unexpected movement protection module 60 is fixedly mounted on the front surface 101 of the second body portion 12, and the front surface 101 of the second body portion 12 includes a first mounting area and a second mounting area, the control module 50 is disposed in the first mounting area, and the car unexpected movement protection module 60 is disposed in the second mounting area, so as to prevent the car unexpected movement protection module 60 from overlapping the control module 50 in the thickness direction, thereby reducing the space occupied by the variable frequency control module 100 in the thickness direction.

The car unexpected movement protection module 60 includes a UCMP plate 61, and in this embodiment, the UCMP plate 61 is parallel to the electronic control motherboard 51 and at the same height, and the UCMP plate 61 and the electronic control motherboard are not overlapped in the thickness direction. And in the thickness direction, the UCMP board 61 and the power board 41 are stacked, so that the UCMP board 61 is prevented from occupying additional space in the direction parallel to the mounting board 10, and the frequency conversion control module 100 is more compact in structure.

Specifically, the car accidental movement protection module 60 (UCMP, unintended car movement protection system) is connected to the elevator car through a wire harness to realize the function of early opening the door and detecting the door lock short circuit. Specifically, when the elevator is in the flat landing position and the door is open, if the elevator is accidentally moved, the car accidental movement protection module 60 starts protection on the horse, stops the elevator operation, and adds a safety guarantee to the passengers. The technical principle of the car accidental movement protection module 60 is as follows: when the elevator door is opened, passengers enter the elevator car, at the moment, the function of the device is started, and the elevator car is reliably fixed on the elevator guide rail in a mode of sensor signal control, so that the elevator car is prevented from moving accidentally. After the car door is closed, the sensor resets the car protection device by a starting signal, and then the car continues to run, so that the car door and the protection device can synchronously run, and the effect of real-time protection is achieved.

In this embodiment, as shown in fig. 2, a partition board 103 is further disposed on the mounting board 10, and the partition board 103 is located between the radiator 322 and the electrolytic capacitor 321, and separates the radiator 322 and the electrolytic capacitor 321 through the partition board 103, so as to form two independent heat dissipation spaces for dissipating heat from the radiator 322 and the electrolytic capacitor 321, so as to reduce the mutual influence of heat dissipated from the radiator 322 and the electrolytic capacitor 321.

It should be noted that, the driving board 312, the capacitor board 311, the electronic control motherboard 51, the pre-charging board 313 and the power board 41 in the variable frequency control module 100 are all PCB boards, (Printed Circuit Board PCB), the chinese name is a printed circuit board, and the driving board 312, the capacitor board 311, the electronic control motherboard 51, the pre-charging board 313 and the power board 41 are respectively support bodies of electronic components in each module, and are also carriers for establishing electrical interconnection between each module.

The electric control core board 52 is a core (provided with a chip) of the industrial control part, the electric control core board 52 and the electric control motherboard 51 are connected with the driving module 30 through a flat cable of a socket on the electric control motherboard 51 after being hard-connected through a flat cable, and control functions of controlling the driving module 30 to control the elevator traction machine to drive the lift car to ascend and descend, stopping the stability of opening the door, damping the vibration and the like are achieved. UCMP plate 61 is connected with the elevator car through a wire harness to realize the functions of opening the door in advance and detecting the short circuit of the door lock, and the electronic control core plate 52 in the industrial control part is connected with UCMP plate 61 through the wire harness.

In detail, the externally input three-phase alternating current is connected to the RST three-phase power input on the capacitor plate 311 through a cable, the three-phase alternating current is converted into two-phase direct current through the rectifier bridge flowing through the capacitor plate 311, the two-phase direct current is connected in parallel with the electrolytic capacitor 321 on the capacitor plate 311 and then is converted into three-phase alternating current through the IGBT module on the driving plate 312, and the three-phase alternating current flows back to the UVW three phases of the driving plate 312 and is then connected to the elevator traction machine through the cable. It should be noted that, the power module 40 takes power from the input three-phase alternating current of the driving board 312 and converts the power into power of each voltage level to supply power to each part in the driving module 30 and the control module 50.

As shown in fig. 4, the present utility model further provides an elevator frequency conversion control cabinet 200, where the elevator frequency conversion control cabinet 200 includes a cabinet 201, and the frequency conversion control module 100 is disposed inside the cabinet 201.

The elevator variable frequency control cabinet 200 provided by the utility model integrates the functions of rectification, inversion, elevator control, UCMP, integrated power supply, elevator conversion and emergency stop switch, and has the complete set of elevator driving control functions. And each part of devices are distributed in three layers along the direction vertical to the mounting plate 10, so that the volume of the elevator variable frequency control cabinet 200 can be effectively reduced, the space utilization rate is improved, the length of a connecting cable between each circuit board is reduced, and the labor hour and the cost required for wire arrangement of production wires are reduced. And the disassembly and maintenance are facilitated layer by layer, and the disassembly and maintenance difficulty is reduced.

In some embodiments of the present utility model, as shown in fig. 4 and 5, the control cabinet 200 includes a cabinet 201, a variable frequency control module 100, and a functional module 20. Specifically, the variable frequency control module 100 is mainly used for controlling the operation of the elevator, the variable frequency control module 100 is arranged in the cabinet 201, the functional module 20 is in communication connection with the variable frequency control module 100, the functional module 20 comprises an operation end and a connection end, the connection end is arranged in the cabinet 201 and is in communication connection with the variable frequency control module 100, and a control instruction can be sent to the variable frequency control module 100 through the operation end of the functional module 20, so that the operation of the elevator is controlled. The operation end of the functional module 20 is disposed outside the cabinet 201, so that operations such as operation or debugging of the elevator system can be realized outside the cabinet 201 through the operation end of the functional module 20, and the control cabinet 200 does not need to be opened or disassembled, so that the debugging or operation process is more convenient.

In the present embodiment, as shown in fig. 4 and 6, the functional module 20 includes a control panel 210 and a button assembly 220, the cabinet 201 has a substantially rectangular parallelepiped shape, and the cabinet 201 includes a drawer-shaped housing 2011, and an upper cover 2012, a lower cover 2013, and a rear cover 2014 connected to the housing 2011. The upper cover 2012 and the lower cover 2013 are parallel to the mounting plate 10, the control panel 210 and the rear cover 2014 are disposed on two opposite sides of the housing 2011, and the control panel 210 is fixedly connected with the housing 2011.

Specifically, the button assembly 220 includes at least one control button provided on the control panel 210, and a connection end of the control button is communicatively connected to the control module 50 and is used for outputting a control command to the control module 50 to control the operation of the elevator.

The control buttons include a scram button 2028, a change-over switch 2027, and a travel button 2025. Specifically, as shown in fig. 7, a mounting groove 2101 is formed in a part of the control panel 210 facing the inside of the cabinet 201, a first mounting hole is formed in the mounting groove 2101, and the scram button 2028 and the change-over switch 2027 are respectively inserted into the first mounting hole. The connection ends of the scram button 2028 and the change-over switch 2027 are in communication connection with the control module 50, the operation ends of the scram button 2028 and the change-over switch 2027 are accommodated in the installation groove 2101, and the length between the top end surfaces of the operation ends of the scram button 2028 and the change-over switch 2027 and the bottom wall of the installation groove 2101 is not greater than the depth of the installation groove 2101.

In this embodiment, the operation ends of the emergency stop button 2028 and the change-over switch 2027 are accommodated in the installation slot 2101, and the connection ends of the emergency stop button 2028 and the change-over switch 2027 are located in the cabinet 201, so that a user can operate the emergency stop button 2028 and the change-over switch 2027 outside the cabinet 201, and the user does not need to open the cabinet door of the cabinet 201 and then operate, so that the convenience of operation of the user is improved, and the safety of the user in operating the emergency stop button 2028 and the change-over switch 2027 is improved.

The traveling buttons 2025 include a plurality of traveling buttons 2025, the traveling buttons 2025 are sequentially and alternately arranged on the control panel 210, the control panel 210 is further provided with a plurality of second mounting holes arranged at intervals, each traveling button 2025 corresponds to one second mounting hole, the operation end of the traveling button 2025 is configured to be contained in the second mounting hole in a pressing manner, the connection end of the traveling button 2025 is located in the cabinet 201 and connected to the button control board 2021, and the button control board 2021 is connected with the electric control motherboard through a flat cable, so that the elevator can be controlled to go up or down by operating the traveling buttons 2025. Emergency situation occurs in the elevator: if accident or fault maintenance happens, the emergency stop button 2028 is pressed, the circuit of the control circuit is powered off, and the elevator is immediately stopped to achieve protection. The changeover switch 2027 is connected with the elevator safety circuit through a wire harness to realize the changeover of different working states of the elevator.

In the present embodiment, as shown in fig. 4, 5 and 9, the back cover 2014 is further provided with a power line socket 240, and the power line socket 240 is fixedly mounted to the back cover 2014. The drive module 30 has a power connection 33, in particular a connection comprising an input (R, S, T) connection and an output (U, V, W) connection. The connection ends of the power line socket 240 are respectively connected with the input end and the output end of the power connection terminal 33 in a communication manner.

In detail, the cabinet 201 is provided with a first opening 2015, the power cord row seat 240 includes a seat 2410 and a power interface 2411 disposed on the seat 2410, the seat 2410 is clamped to the first opening 2015, the number of the power interfaces 2411 is plural, and the power interfaces 2411 are sequentially arranged on the seat 2410 and are disposed towards the outside of the cabinet 201. A portion of the power interface 2411 is communicatively connected to an input terminal of the connection terminal, and the remaining portion of the power interface 2411 is communicatively connected to an output terminal of the connection terminal. In this embodiment, the external power supply wire and the power transmission wire are directly plugged on the power interface 2411, so that the connection between the control cabinet 200 and the external wire can be realized, and the connection of the control cabinet 200 can be realized without disassembling or opening the cabinet 201, thereby being convenient and fast to operate.

In detail, the three-phase ac power inputted from the external power supply wire is supplied to the driving module 30 through the power interface 2411 to the input end (R, S, T) of the power connection terminal 33, the three-phase ac power is converted into two-phase dc power through the rectifier bridge in the driving module 30, the two-phase dc power is parallel connected with the electrolytic capacitor on the capacitor plate and then is converted into the three-phase ac power required by the elevator traction machine through the IGBT module in the driving module 30, and the three-phase ac power flows back to the three phases at the output end (U, V, W) of the power connection terminal 33, and then is supplied to the elevator traction machine through the power transmission wire to drive the elevator traction machine to operate. It should be noted that, the power module 40 takes power from the driving module 30 and converts the power into power of various voltage levels to supply power to various portions of the driving module 30 and the control module 50.

In this embodiment, as shown in fig. 9, 10 and 11, the power connection terminal 33 includes a terminal housing 331 fixedly connected to a driving board in the driving module 30 and a conductive terminal 333 communicatively connected to a wiring of the driving board, the terminal housing 331 is provided with a plurality of terminal sockets 332, one conductive terminal 333 is provided in each terminal socket 332, and the conductive terminal 333 is communicatively connected to the driving board in the driving module 30 through a pin 3331.

As shown in fig. 12, 13 and 14, a socket body 2410 of the power cord row seat 240 is provided with a socket protrusion 2420 on a side facing the inside of the cabinet body, the socket protrusion 2420 is hollow inside and forms an opening 24201 at an end facing the power connection terminal 33, and each power interface 2411 is provided with a socket protrusion 2420 correspondingly. The power cord row seat 240 is further provided with a plurality of conductive members 2430, the conductive members 2430 are in one-to-one correspondence with the power interfaces 2411, and the conductive members 2430 are partially disposed in the inner cavity of the plugging protrusion 2420. One end of the conductive member 2430 extends to the power interface 2411 for connection with an external connection line, the other end of the conductive member 2430 extends into the cavity of the plug protrusion 2420, and the conductive terminal 333 in the power connection terminal 33 enters the cavity of the plug protrusion 2420 through the opening 24201 to be electrically connected with the conductive member 2430. Wherein, the plug protrusion 2420 is plugged and matched with the terminal plug connector 332 to connect the power line socket 240 and the power connection terminal 33 as a whole.

In some embodiments, as shown in fig. 14, a concave portion is disposed at an end of the conductive member 2430 facing the conductive terminal 333, the conductive terminal 333 is provided with a convex portion that is in plug-in fit with the concave portion, when the plug-in protrusion 2420 is inserted into the terminal plug-in connector 332, the concave portion is plugged into the convex portion to make the conductive member 2430 and the conductive terminal 333 electrically connected well, and the concave portion and the convex portion can be matched in a clamping, plugging or abutting manner, so that any embodiment capable of realizing firm electrical connection between the concave portion and the convex portion can be selected according to the technical teaching provided in this embodiment.

The inner wall of one side of the power interface 2411 is raised to form a wire placement section 2413, the wire placement section 2413 providing a platform for placement of external wires extending from the power interface 2411, the wire placement section 2413 may be configured as a planar surface, may be configured as a channel, or may be configured as other irregular structures capable of carrying external connection links. The conductive member 2430 is disposed at a distance from the wire placement portion 2413 and is in abutting engagement with the wire placement portion 2413, and an end of the external wire extending into the power interface 2411 is clamped and fixed by abutting engagement of the conductive member 2430 with the wire placement portion 2413, so that the external wire is firmly connected with the conductive member 2430.

The base 2410 is provided with a threaded hole 2412 communicated with the power interface 2411 and a fastener 2440 arranged in the threaded hole 2412, the threaded hole 2412 is positioned on one side of the conductive member 2430 away from the wire placing part 2413, the fastener 2440 is arranged in the threaded hole 2412, the fastener 2440 is provided with external threads matched with the threaded hole 2412, after an external wire is inserted into the power interface 2411, the fastener 2440 is moved towards one side close to the wire placing part 2413 by tightening the fastener 2440, so as to push the conductive member 2430 to move towards the wire placing part 2413 and finally press the conductive member 2430 against the wire placing part 2413, so that the external wire between the conductive member 2430 and the wire placing part 2413 is pressed and fixed.

In some embodiments of the present utility model, as shown in fig. 5 and fig. 7, a signal line interface assembly 230 is further provided on the back cover 2014, the signal line interface assembly 230 has at least one signal line interface 2330, and the signal line interface 2330 is communicatively connected to the control module 50.

Specifically, the signal line interface assembly 230 includes a signal interface panel 2310, an interface circuit board 2320 and a plurality of signal line interfaces 2330, the cabinet 201 is provided with a second opening 2016, the signal interface panel 2310 is mounted on the back cover plate 2014 and covers the second opening 2016, one side of the signal interface panel 2310 facing the interior of the cabinet 201 is provided with a columnar connection structure, the interface circuit board 2320 is mounted on the columnar connection structure and is located at the inner side of the cabinet 201, the plurality of signal line interfaces 2330 are integrally mounted on the interface circuit board 2320 and are in communication connection with wires in the interface circuit board 2320, the interface circuit board 2320 is in communication connection with an electric control motherboard in the control module 50 through a wire arrangement, and the interface end of the signal line interface 2330 is arranged outside the cabinet 201, so that a user can finish connection of the signal line in operation outside the cabinet 201 without opening the wiring of the cabinet 201, and convenience of operation of the user is improved.

In some embodiments of the present utility model, as shown in fig. 4 and 7, the signal interface panel 2310 is provided with a clamping structure matching with the second opening 2016, and the signal interface panel 2310 is provided with a clamping connection with the second opening 2016 through the clamping structure.

In detail, the signal interface panel 2310 includes a main body 2311 and a connection portion 2312, the main body 2311 is plate-shaped, the connection portion 2312 is an annular protrusion structure disposed on one side of the main body 2311 facing the inside of the cabinet 201, the fastening structure is a plurality of protrusions 2313 disposed on the outer peripheral surface of the main body 2311, and the protrusions 2313 are matched with the second openings 2016 to fasten the signal interface panel 2310 on the rear cover 2014.

In this embodiment, the mounting plate 10, the lower cover plate 2013 and the housing 2011 enclose to form a heat dissipation channel, the electrolytic capacitor 321, the radiator 322 and the power module 40 are all disposed in the heat dissipation channel, an air inlet and an air outlet are respectively formed on the housing 2011 at two opposite ends of the heat dissipation channel, and the air outlet is provided with the fan 205 to drive external air to flow through the heat dissipation channel, so as to dissipate heat of high-heat devices such as the electrolytic capacitor 321, the radiator 322 and the power module 40.

It is emphasized that the elevator variable frequency control cabinet provided by the utility model has the advantages that the control panel, the interface board assembly and the power line plug wire row seat are arranged on the rear cover plate, so that the emergency stop button, the change-over switch, the uplink button, the downlink button, the signal line interface and the power line plug wire row seat are external, the connection can be realized through direct plug connection of the corresponding adapting plug, and the functions of connection, operation, debugging and the like of the control cabinet can be realized without opening the cabinet body.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (17)

1. The utility model provides a variable frequency control module, its characterized in that, variable frequency control module includes:

a driving module;

a power module;

the control module is respectively and electrically connected with the driving module and the power supply module;

the driving module is respectively arranged with the power module and the control module in sequence along a first direction;

the power supply module and the control module are at least partially overlapped along a second direction;

the second direction is perpendicular to the first direction.

2. The variable frequency control module of claim 1, further comprising:

the mounting plate comprises a first main body part and a second main body part which are connected, and the first main body part and the second main body part are sequentially arranged along the first direction;

The driving module is installed in the first main body part, and the power module and the control module are both installed in the second main body part.

3. The variable frequency control module according to claim 2, wherein,

the mounting plate has a front face and a back face;

the driving module comprises a driving control element and a heat dissipation demand element arranged on the driving control element, the driving control element is arranged on the front surface of the first main body part, and the heat dissipation demand element is arranged on the back surface of the first main body part;

the control module is arranged on the front surface of the second main body part, and the power supply module is arranged on the back surface of the second main body part.

4. The variable frequency control module according to claim 3, wherein,

the first body portion and the second body portion are parallel and not in the same plane;

in the second direction, the second body portion is closer to the drive control element than the heat dissipation demand element.

5. The variable frequency control module according to claim 3 or 4, wherein,

the first main body part is provided with a first avoiding structure and a second avoiding structure;

The driving control element comprises a capacitor plate and a driving plate, wherein the capacitor plate and the driving plate are arranged on the front surface of the first main body part, the driving plate is provided with an IGBT module, and the capacitor plate is electrically connected with the driving plate;

the heat dissipation demand component comprises an electrolytic capacitor and a radiator, wherein the electrolytic capacitor penetrates through the first avoidance structure and is installed on the capacitor plate, and the IGBT module is in heat conduction connection with the radiator through the second avoidance structure.

6. The variable frequency control module according to claim 5, wherein,

along the second direction, the capacitor plate and the driving plate are stacked.

7. The variable frequency control module of claim 5, wherein the drive control element further comprises:

a precharge board electrically connected with the driving board;

along the second direction, the precharge plate, the driving plate and the capacitor plate are arranged in a three-layer overlapping mode.

8. The variable frequency control module according to claim 3, wherein,

the control module includes:

an electronic control motherboard mounted on the front surface of the second main body part;

the electric control core board is arranged on the electric control motherboard and is electrically connected with the electric control motherboard;

The power module comprises a power panel which is arranged on the front and back surfaces of the second main body part;

and along the second direction, the electric control core board, the electric control motherboard and the power panel are arranged in a three-layer overlapping manner.

9. The variable frequency control module according to claim 8, wherein,

the frequency conversion control module still includes:

the car accidental movement protection module is arranged on the front surface of the second main body part and is electrically connected with the control module;

the front face of the second main body part comprises a first installation area and a second installation area, the control module is arranged in the first installation area, and the car accidental movement protection module is arranged in the second installation area.

10. The variable frequency control module of claim 9, wherein

The car unexpected removal protection module includes UCMP board, along being on a parallel with the direction of the face of second main part, UCMP board with automatically controlled motherboard sets gradually and follows the second direction, UCMP board with the power strip stacks the setting.

11. The variable frequency control module of claim 5, further comprising:

and the separator is connected with the mounting plate and penetrates between the radiator and the electrolytic capacitor.

12. The utility model provides an elevator variable frequency control cabinet which characterized in that, elevator variable frequency control cabinet includes:

a cabinet body;

the variable frequency control module of any one of claims 1-11, disposed inside the cabinet.

13. The elevator frequency conversion control cabinet of claim 12, further comprising:

the functional module is arranged on the cabinet body and is provided with an operation end and a connection end, the operation end is positioned outside the cabinet body, and the connection end is positioned inside the cabinet body and is in communication connection with the variable frequency control module.

14. The elevator variable frequency control cabinet of claim 13, wherein the functional module comprises:

the control panel is arranged on the outer side wall of the cabinet body;

the button assembly is arranged on the control panel and comprises at least one control button, and the connecting end of the control button is in communication connection with the control module and is used for outputting control instructions to the control module.

15. The variable frequency control cabinet of an elevator of claim 14, wherein,

the control button includes: the emergency stop button and the change-over switch penetrate through the control panel, and the connection ends of the emergency stop button and the change-over switch are both in communication connection with the control module;

The control panel is provided with a mounting groove, the mounting groove is sunken towards the inside of the cabinet body, the operation end of the scram button and the operation end of the change-over switch are accommodated in the mounting groove, and the connection end of the scram button and the connection end of the change-over switch are located in the inside of the cabinet body.

16. The variable frequency control cabinet of an elevator according to claim 13, wherein,

the cabinet body is provided with a first opening, and a driving module in the variable frequency control module is provided with a power supply wiring terminal;

the functional module includes: the power line row seat comprises a seat body and a power interface arranged on the seat body, wherein the seat body is clamped in the first opening, and the power interface is electrically connected with the power connection terminal.

17. The variable frequency control cabinet of an elevator according to claim 13, wherein,

the functional module includes: the signal line interface assembly is provided with at least one signal line interface, and the signal line interface is in communication connection with the control module.