Elevator control cabinet

Abstract

The invention provides an elevator control cabinet. The elevator control cabinet comprises a shell, a control panel and a control panel, wherein an accommodating cavity is formed in the shell; the first bracket is arranged in the accommodating cavity; the driving module is arranged in the containing cavity, the driving module comprises a driving substrate and a power element assembly, the driving substrate is fixedly connected to one side of the first support, the power element assembly is located on the other side of the first support, and the power element assembly and the first support are arranged in a spaced mode; the power element assembly is connected with the driving substrate through a conductive wire harness. According to the invention, the power element assembly and the driving substrate are located at two opposite sides of the first support. Therefore, the power element assembly and the driving substrate of the driving module are arranged in the accommodating cavity in a split mode, the influence of heat generated by the power element assembly on the driving substrate can be weakened, the probability that the driving module is damaged can be reduced, the service life of the elevator control cabinet can be prolonged, and the performance of the elevator control cabinet can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of elevator equipment, and in particular to an elevator control cabinet. Background Art

[0002] Elevators have become increasingly popular in every corner of the city, especially in high-rise buildings, where they are an indispensable part. In order to ensure the normal operation of the elevator, the elevator is generally equipped with an elevator control system, which is integrated in the control cabinet.

[0003] In the related art, the driving module includes a variety of circuit boards such as a driving board, a capacitor board, a pre-charging board, etc. However, when the rated power of the elevator control cabinet is large, the heat generated by the power components on the circuit board will increase, which will cause damage to the circuit board, thereby affecting the performance and life of the elevator control cabinet. Summary of the invention

[0004] The embodiment of the present application provides an elevator control cabinet, which is beneficial to improving the problem of reduced performance and life of the elevator control cabinet caused by damage to the circuit board due to heat generated by power components.

[0005] An embodiment of the present application proposes an elevator control cabinet, comprising: a shell, the shell forming a accommodating cavity; a first bracket, arranged in the accommodating cavity; and a driving module, arranged in the accommodating cavity, the driving module comprising a driving substrate and a power element assembly, the driving substrate being fixedly connected to one side of the first bracket, the power element assembly being located on the other side of the first bracket and spaced apart from the first bracket, and the power element assembly being connected to the driving substrate through a conductive wire harness.

[0006] In the present application, the first bracket and the driving module are both arranged in the accommodating cavity, and the driving module includes a driving substrate and a power element assembly. In addition, the power element assembly and the driving substrate are located on opposite sides of the first bracket. As a result, the power element assembly and the driving substrate of the driving module are separated in the accommodating cavity, and the two can be electrically connected by means of an external conductive wire harness, thereby constructing an integrated driving board in the related art. In this way, the influence of the heat generated by the power element assembly on the driving substrate can be reduced, thereby reducing the probability of damage to the driving module, and thus helping to improve the life and performance of the elevator control cabinet. In addition, the present application separates the power element assembly and the driving substrate in the accommodating cavity, so there is no need to worry about the power element assembly damaging the driving substrate, so that the above structure can be applied to elevator control cabinets with a power of 75kw and above.

[0007] In some embodiments, the elevator control cabinet further includes a heat dissipation module disposed in the accommodating cavity, the heat dissipation module being spaced apart from the first bracket and being located on a side of the first bracket away from the driving substrate;

[0008] The power element assembly includes a plurality of power elements, a portion of the power elements are connected to the housing, and another portion of the power elements are connected to the heat dissipation module, and the heat dissipation module is used to dissipate heat from the power element assembly.

[0009] In some embodiments, the elevator control cabinet further includes a heat dissipation module disposed in the accommodating cavity, the heat dissipation module includes a second bracket and a radiator connected to the second bracket, the second bracket is spaced apart from the first bracket and is located on a side of the first bracket away from the drive substrate;

[0010] The power element assembly includes a rectifier and an inverter. The rectifier and the inverter are both fixed to the outer surface of the heat sink. The inverter is electrically connected to the driving substrate through the conductive wire harness.

[0011] In some embodiments, the second bracket and the housing are arranged to form a first heat dissipation channel, and the housing is further formed with a first air inlet and a first air outlet communicating with the first heat dissipation channel;

[0012] The heat sink is located in the first heat dissipation channel, the second bracket is provided with a first through hole, and the rectifier and the inverter are connected to a side surface of the heat sink close to the first bracket through the first through hole.

[0013] In some embodiments, the driving module further includes a capacitor component electrically connected to both the rectifier and the inverter, at least a portion of the capacitor component is located in the first heat dissipation channel, and the capacitor component is fixedly connected to the second bracket or the housing.

[0014] In some embodiments, the capacitor assembly includes a stacked busbar and a plurality of electrolytic capacitors connected to the stacked busbar, a second through hole is provided on the second bracket, the stacked busbar is connected to the first bracket, and the plurality of electrolytic capacitors extend into the first heat dissipation channel through the second through hole.

[0015] In some embodiments, the capacitor assembly includes a laminated busbar and a plurality of electrolytic capacitors connected to the laminated busbar;

[0016] The shell includes a first side plate and a third side plate that are arranged opposite to each other, and a second side plate connecting the first side plate and the third side plate, the second side plate is located on the side of the second bracket away from the first bracket, the second bracket is respectively connected to the first side plate and the third side plate, the second bracket is provided with a second through hole, the multiple electrolytic capacitors extend into the first heat dissipation channel through the second through hole and are fixedly connected to the second side plate.

[0017] In some embodiments, the heat dissipation module further includes a first heat dissipation fan, which is arranged corresponding to the first air outlet and installed on the housing.

[0018] In some embodiments, the first bracket, the second bracket and the housing are arranged to form a second heat dissipation channel, and the housing is further formed with a second air outlet communicating with the second heat dissipation channel;

[0019] The power element assembly also includes a power connection terminal, a plurality of copper bars, a contactor and a pre-charging resistor located in the second heat dissipation channel.

[0020] In some embodiments, the power terminal is electrically connected to the rectifier and the inverter through the copper busbar, the power terminal is electrically connected to the contactor through the copper busbar, the pre-charge resistor is electrically connected to the contactor, and the contactor is electrically connected to the drive substrate through a conductive wire harness;

[0021] The power connection terminal is fixedly connected to the housing, and the contactor and the pre-charging resistor are fixedly connected to the second bracket.

[0022] In some embodiments, the heat dissipation module also includes a second heat dissipation fan, the power element assembly also includes a fan control board, the second heat dissipation fan is arranged corresponding to the second air outlet and is installed on the shell, the fan control board is electrically connected to the second heat dissipation fan, the fan control board is electrically connected to the drive substrate through a conductive wiring harness, and the fan control board is fixedly connected to the second bracket.

[0023] In some embodiments, the power connection terminals include three AC input terminals and four AC output terminals;

[0024] The plurality of copper bars include three AC input copper bars respectively connected to the three AC input terminals and four AC output copper bars respectively connected to the four AC output terminals;

[0025] The power element assembly also includes a lightning protection board and a plurality of current sensors. The lightning protection board is fixedly connected to the three AC input copper busbars. Each current sensor is correspondingly connected to one of the AC output copper busbars. The current sensor is electrically connected to the drive substrate via a conductive wire harness.

[0026] In some embodiments, the driving module further includes a reactor located in the second heat dissipation channel, the contactor is electrically connected to the reactor, and the reactor is fixedly connected to the second bracket.

[0027] In some embodiments, the elevator control cabinet also includes a control module and a power module, the drive module, the control module and the power module are electrically connected to each other, the control module includes a control board, the power module includes a power board, the control board and the power board are both fixedly connected to the first bracket, and the control board, the power board and the drive substrate are located on the same side of the first bracket.

[0028] In some embodiments, the elevator control cabinet also includes a human-computer interaction module, which is electrically connected to the drive module, the control module and the power module. The human-computer interaction module is fixedly connected to the first bracket, and the human-computer interaction module and the drive substrate are located on the same side of the first bracket.

[0029] In some embodiments, the first bracket includes a first main body and a second main body connected to the first main body, and the first main body is located on one side of the second main body in the height direction of the elevator control cabinet;

[0030] The first main body has a first mounting surface, the second main body has a second mounting surface, the first mounting surface and the second mounting surface are parallel to each other and not coplanar, the control board, the power board and the drive substrate are all mounted on the first mounting surface, and the human-computer interaction module is mounted on the second mounting surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of an elevator control cabinet provided in one embodiment of the present application;

[0033] Figure 2A schematic diagram of the exploded structure of an elevator control cabinet provided in one embodiment of the present application;

[0034] Figure 3 A schematic diagram of the structure of the connection between the first bracket and the driving module, the power module, and the control module provided in one embodiment of the present application;

[0035] Figure 4 A schematic structural diagram of a second bracket, a heat sink, a capacitor assembly, and a power element assembly provided in an embodiment of the present application at one viewing angle;

[0036] Figure 5 A structural schematic diagram of another perspective of the connection of a second bracket, a heat sink, a capacitor assembly, and a power element assembly provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of the structure of an elevator control cabinet provided in an embodiment of the present application with one of the side panels of the shell removed;

[0038] Figure 7 A schematic diagram of the structure of a capacitor assembly provided in one embodiment of the present application;

[0039] Figure 8 A schematic structural diagram of a second bracket provided in one embodiment of the present application.

[0040] Description of reference numerals:

[0041] 10- Elevator control cabinet;

[0042] 100-housing, 101-accommodating cavity, 1011-first heat dissipation channel, 102-first air inlet, 103-first air outlet, 110-first side plate, 120-third side plate, 130-second side plate, 140-bottom plate, 150-top plate, 1012-second heat dissipation channel, 104-second air outlet, 160-fourth side plate, 161-operation window;

[0043] 200 - first bracket, 210 - first main body, 211 - first mounting surface, 220 - second main body, 221 - second mounting surface;

[0044] 300-drive module, 310-drive substrate, 311-STO board, 312-first interface, 313-second interface, 314-third interface, 315-fourth interface, 320-power component assembly, 321-rectifier, 3211-rectifier bridge module, 322-inverter, 3221-IGBT module, 323-power terminal, 324-copper busbar, 325-contactor, 326-pre-charge resistor, 327 - fan control board, 328 - lightning protection board, 329 - current sensor, 330 - capacitor assembly, 331 - laminated busbar, 3311 - positive capacitor copper busbar terminal, 3312 - negative capacitor copper busbar terminal, 3313 - middle capacitor copper busbar terminal, 332 - electrolytic capacitor, 333 - voltage balancing resistor, 334 - absorption capacitor, 335 - terminal fixing, 3241 - AC input copper busbar, 3242 - AC output copper busbar, 340 - reactor;

[0045] 400-power module, 410-power board, 420-power cooling fan;

[0046] 500-control module, 510-control board, 511-core board;

[0047] 600-heat dissipation module, 610-second bracket, 611-first through hole, 612-second through hole, 620-heat sink, 630-first heat dissipation fan, 640-second heat dissipation fan;

[0048] 700-Human-computer interaction module. DETAILED DESCRIPTION

[0049] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0050] like Figures 1 to 4 As shown, an embodiment of the present application proposes an elevator control cabinet 10. The elevator control cabinet 10 includes a housing 100, a first bracket 200, and a drive module 300. The housing 100 is formed with a receiving cavity 101. The first bracket 200 and the drive module 300 are both arranged in the receiving cavity 101. The drive module 300 includes a drive substrate 310 and a power element assembly 320. The drive substrate 310 is fixedly connected to one side of the first bracket 200. The power element assembly 320 is located on the other side of the first bracket 200 and is spaced apart from the first bracket 200. The power element assembly 320 is connected to the drive substrate 310 through a conductive wire harness.

[0051] In the present application, the elevator control cabinet 10 includes a housing 100, a first bracket 200 and a drive module 300. The housing 100 is the base of the elevator control cabinet 10, and is used to protect the internal electronic equipment from external environmental factors (such as dust, moisture, impact, etc.). The housing 100 can be made of a material with a certain strength, for example, aluminum or aluminum alloy. A plurality of heat dissipation through holes can be provided on the housing 100 so that the housing 100 has a certain air circulation capability.

[0052] The drive module 300 is one of the core structures in the elevator control cabinet 10. The drive module 300 directly controls the operation of the elevator motor to ensure that the elevator can achieve functions such as starting, accelerating, decelerating, and stopping. Figure 2 and Figure 3 As shown, the driving module 300 includes a driving substrate 310 and a power element assembly 320. The driving substrate 310 is the circuit board substrate of the driving module 300, and a plurality of circuit interfaces, control integrated circuits, drive integrated circuits, protection integrated circuits and other structures may be provided on the driving substrate 310. The control integrated circuit receives the control signal from the control module 500 through the circuit interface, and then parses the drive signal according to the control signal, and transmits the drive signal to the drive integrated circuit. The drive integrated circuit transmits the drive signal to the power element assembly 320, so that the power element assembly 320 outputs a suitable current and voltage, thereby driving the motor of the elevator to operate. Part of the power element assembly 320 is connected to the circuit interface of the driving substrate 310 by means of an external conductive wire harness, and then the electrical connection between the power element assembly 320 and the driving substrate 310 is realized through each integrated circuit of the driving substrate 310, so that the driving substrate 310 and the power element assembly 320 construct an integrated driving board in the related art.

[0053] In the present application, the first bracket 200 and the driving module 300 are both arranged in the accommodating cavity 101, and the driving module 300 includes a driving substrate 310 and a power element assembly 320, and the power element assembly 320 and the driving substrate 310 are located on both sides of the thickness direction of the first bracket 200, and the two can be electrically connected by an external conductive wire harness, thereby constructing an integrated driving board in the related art. As a result, the power element assembly 320 and the driving substrate 310 are separated in the accommodating cavity 101. In this way, the influence of the heat generated by the power element assembly 320 on the driving substrate 310 can be weakened, thereby reducing the probability of the driving module 300 being damaged, and thus helping to improve the life and performance of the elevator control cabinet 10. In addition, the present application realizes a separate setting of the power element assembly 320 and the driving substrate 310 in the accommodating cavity 101, so there is no need to worry about the power element assembly 320 damaging the driving substrate 310, so that the above structure can be applied to the elevator control cabinet 10 with a power of 75kw and above.

[0054] It should be noted that in the present application, the driving substrate 310 of the driving module 300 is a printed circuit board, on which, in addition to multiple circuit interfaces and integrated conductive circuits, electronic components with low heat generation of the driving board in the related art can be directly welded on the driving substrate 310, thereby improving the integration level of the driving module 300. Figure 3 As shown, an STO board 311 (Safe Torque Off) may be further provided on the driving substrate 310 , thereby further improving the safety performance of the driving module 300 .

[0055] In addition, the power element assembly 320 is electrically connected to the driving substrate 310 via a conductive wire bundle, which means that among the multiple power elements electrically connected to each other in the power element assembly 320, one or more power elements are electrically connected to the driving substrate 310 via a conductive wire bundle, thereby achieving electrical connection between the power element assembly 320 and the driving substrate 310.

[0056] In some embodiments, Figure 2 and Figure 4 As shown, the elevator control cabinet 10 also includes a heat dissipation module 600 arranged in the accommodating cavity 101. The heat dissipation module 600 is spaced apart from the first bracket 200 and is located on the side of the first bracket 200 away from the circuit driving substrate 310. The power element assembly 320 includes a plurality of power elements, a part of the plurality of power elements are connected to the shell 100, and another part of the plurality of power elements are connected to the heat dissipation module 600. The heat dissipation module 600 is used to dissipate heat for the power element assembly 320.

[0057] In this embodiment, the elevator control cabinet 10 further includes a heat dissipation module 600 disposed in the accommodating cavity 101, and the heat dissipation module 600 can dissipate heat for the power elements. Further, a part of the power elements of the plurality of power elements are connected to the housing 100, and another part of the power elements of the plurality of power elements are connected to the heat dissipation module 600. In other words, the plurality of power elements are divided into two parts, and the two parts of the power elements are respectively fixedly connected to different structures inside the elevator control cabinet 10. Thus, the power element assembly 320 can reasonably utilize the space on the side of the first bracket 200 close to the heat dissipation module 600, improve the space utilization rate, and thus facilitate the miniaturization requirement of the elevator control cabinet 10.

[0058] In some embodiments, Figure 2 and Figure 4 As shown, the heat dissipation module 600 includes a second bracket 610 and a heat sink 620 connected to the second bracket 610. The second bracket 610 is spaced apart from the first bracket 200 and is located on the side of the first bracket 200 away from the drive substrate 310. The power element assembly 320 includes a rectifier 321 and an inverter 322. The rectifier 321 and the inverter 322 are both fixed to the outer surface of the heat sink 620. The inverter 322 is electrically connected to the drive substrate 310 through a conductive wire harness (not shown in the figure).

[0059] In this embodiment, the heat dissipation module 600 includes a second bracket 610 and a radiator 620, and the radiator 620 is fixed on the second bracket 610. Further, the rectifier 321 and the inverter 322 of the power element assembly 320 are fixed to the outer surface of the radiator 620. Such a configuration allows the radiator 620 to be directly attached to the rectifier 321 and the inverter 322, thereby facilitating the heat dissipation effect of the rectifier 321 and the inverter 322 to ensure the normal operation of the two. Moreover, in this case, it is equivalent to that the rectifier 321 and the inverter 322 are indirectly connected to the second bracket 610.

[0060] Optionally, the rectifier 321 may include a plurality of rectifier bridge modules 3211. For example, Figure 4 and Figure 5 As shown, there are three rectifier bridge modules 3211. Optionally, the inverter 322 may include multiple IGBT modules 3221 (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), for example, Figure 4 and Figure 5 As shown, there are four IGBT modules 3221.

[0061] Further, Figure 4 and Figure 5As shown, the driving substrate 310 is provided with a plurality of first interfaces 312 for electrically connecting to the inverter 322, and each first interface 312 is correspondingly connected to each IGBT module 3221 of the inverter 322 through a conductive harness. Thus, the inverter 322 is electrically connected to the driving substrate 310, and the heat of the inverter 322 can be prevented from having an adverse effect on the driving substrate 310.

[0062] In some embodiments, Figure 2 , Figure 6 and Figure 8 As shown, the second bracket 610 and the shell 100 are arranged to form a first heat dissipation channel 1011, and the shell 100 is also formed with a first air inlet 102 and a first air outlet 103 connected to the first heat dissipation channel 1011. The radiator 620 is located in the first heat dissipation channel 1011, and a first through hole 611 is provided on the second bracket 610. The rectifier 321 and the inverter 322 are connected to a side surface of the radiator 620 close to the first bracket 200 through the first through hole 611.

[0063] In this embodiment, the second bracket 610 and the housing 100 are surrounded to form a first heat dissipation channel 1011, and the first heat dissipation channel 1011 is connected to the first air inlet 102 and the first air outlet 103, so as to form a convection air duct. The first heat dissipation channel 1011 is used to take away the heat of the radiator 620, and the radiator 620 is used to dissipate heat for the rectifier 321 and the inverter 322. By setting the first heat dissipation channel 1011, it is beneficial to improve the heat dissipation effect of the radiator 620 on the rectifier 321 and the inverter 322. Further, the rectifier 321 and the inverter 322 are connected to the side surface of the radiator 620 close to the first bracket 200 through the first through hole 611. In this way, firstly, the space of the radiator 620 for fitting the side surface of the second bracket 610 can be reasonably utilized, so as to improve the integration degree of the rectifier 321, the inverter 322 and the radiator 620. Secondly, there is no transitional heat conducting member between the rectifier 321, the inverter 322 and the heat sink 620, which is conducive to further improving the heat dissipation effect. Furthermore, the rectifier 321 and the inverter 322 are located on the side of the second bracket 610 away from the heat sink 620, so that the distance between the inverter 322 and the driving substrate 310 is relatively close, which is conducive to improving the convenience of electrical connection between the two.

[0064] In some embodiments, Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the driving module 300 also includes a capacitor assembly 330 electrically connected to the rectifier 321 and the inverter 322 . At least a portion of the capacitor assembly 330 is located in the first heat dissipation channel 1011 . The capacitor assembly 330 is fixedly connected to the second bracket 610 or the housing 100 .

[0065] In the present embodiment, the driving module 300 further comprises a capacitor assembly 330, which is electrically connected to the rectifier 321 and the inverter 322. The capacitor assembly 330 is used for filtering, energy storage and voltage smoothing. In the present embodiment, at least part of the capacitor assembly 330 is arranged in the first heat dissipation channel 1011, so as to improve the heat dissipation effect of the capacitor assembly 330, and then improve the stability and reliability of the capacitor assembly 330. Further, the capacitor assembly 330 can be fixedly connected to the second bracket 610 or fixedly connected to the housing 100, so as to improve the convenience of connection of the capacitor assembly 330. In addition, it is also beneficial to improve the degree of integration in the accommodating cavity 101. Furthermore, only the radiator 620 and the capacitor assembly 330 are arranged in the first heat dissipation channel 1011, so the volume of the radiator 620 can be appropriately increased, so as to further improve the heat dissipation effect of the inverter 322 to ensure the normal operation of the driving module 300. In addition, at least a portion of the capacitor component 330 is disposed in the first heat dissipation channel 1011 and is spaced apart from the drive substrate 310. This can also improve the adverse effects of the high heat generated by the capacitor component 330 on the drive substrate 310, thereby reducing the probability of damage to the drive module 300, which is beneficial to improving the life and performance of the elevator control cabinet 10.

[0066] In some embodiments, Figure 2 , Figures 6 to 8 As shown, the capacitor assembly 330 includes a laminated busbar 331 and a plurality of electrolytic capacitors 332 connected to the laminated busbar 331, and a second through hole 612 is provided on the second bracket 610. Further, the laminated busbar 331 is connected to the second bracket 610 (not shown in the figure), and the plurality of electrolytic capacitors 332 extend into the first heat dissipation channel 1011 through the second through hole 612.

[0067] This embodiment provides a specific structure of the capacitor assembly 330 and a configuration method thereof in the accommodating cavity 101. The capacitor assembly 330 includes a laminated busbar 331 and a plurality of electrolytic capacitors 332. Figure 7 As shown, the laminated busbar 331 is formed by laminating multiple layers of copper bars, and multiple layers of insulating paper are arranged between two adjacent layers of copper bars. Specifically, the laminated busbar 331 may include a positive copper bar, a negative copper bar and an intermediate copper bar arranged in a laminated manner, and correspondingly, the positive copper bar is provided with a positive capacitor copper bar terminal 3311, the negative copper bar is provided with a negative capacitor copper bar terminal 3312, and the intermediate copper bar is provided with an intermediate capacitor copper bar terminal 3313.

[0068] The laminated busbar 331 of the capacitor assembly 330 is connected to the second bracket 610, and the plurality of electrolytic capacitors 332 extend into the first heat dissipation channel 1011 through the second through hole 612. Thus, the first heat dissipation channel 1011 can dissipate heat for the electrolytic capacitor 332, thereby facilitating the improvement of the stability and reliability of the capacitor assembly 330. In addition, the laminated busbar 331 is mounted on the second bracket 610, and the plurality of electrolytic capacitors 332 are inserted through the second through hole 612, thereby facilitating the improvement of the convenience of the electrical connection between the laminated busbar 331 and the rectifier 321 and the inverter 322.

[0069] In other embodiments, Figure 2 , Figures 6 to 8 As shown, the shell 100 includes a first side plate 110, a third side plate 120 and a second side plate 130 connecting the first side plate 110 and the third side plate 120, the second side plate 130 is located on the side of the second bracket 610 away from the first bracket 200, the second bracket 610 is respectively connected to the first side plate 110 and the third side plate 120, and a plurality of electrolytic capacitors 332 extend into the first heat dissipation channel 1011 through the second through hole 612 and are fixedly connected to the second side plate 130.

[0070] This embodiment proposes another arrangement of the capacitor assembly 330 in the accommodating cavity 101. Specifically, the first side plate 110 and the third side plate 120 of the housing 100 are arranged opposite to each other, the second side plate 130 is located on the side of the second bracket 610 away from the first bracket 200, and the second bracket 610, the first side plate 110, the second side plate 130 and the third side plate 120 are sequentially arranged to form a first heat dissipation channel 1011. Optionally, the first side plate 110, the second side plate 130 and the third side plate 120 can be an integrally formed structure. Furthermore, the multiple electrolytic capacitors 332 of the capacitor assembly 330 extend into the first heat dissipation channel 1011 through the second through hole 612 of the second bracket 610. Thus, the laminated busbar 331 of the capacitor assembly 330 is located on the same side of the rectifier 321 and the inverter 322, and the electrolytic capacitor 332 is located in the first heat dissipation channel 1011, which is conducive to improving the convenience of the laminated busbar 331 being electrically connected to the rectifier 321 and the inverter 322, and improving the stability and reliability of the capacitor assembly 330. Further, the electrolytic capacitor 332 is directly fixedly connected to the second side plate 130. In this way, the capacitor assembly 330 is fixed, which is conducive to improving the space utilization rate of the first heat dissipation channel 1011. In addition, fixing the capacitor assembly 330 by fixing the electrolytic capacitor 332 is also conducive to improving the convenience of fixing the capacitor assembly 330. Optionally, the electrolytic capacitor 332 can be directly fixedly connected to the inner wall of the second side plate 130 through a fixing bracket.

[0071] In the above two embodiments, the capacitor assembly 330 includes a laminated busbar 331 and a plurality of electrolytic capacitors 332. The above capacitor structure makes the capacitor assembly 330 compact and can provide a greater current carrying capacity in a limited space, thereby facilitating the improvement of the working efficiency and reliability of the capacitor assembly 330. In this way, the power of the elevator control cabinet 10 of the present application can be designed to be 75kw and above. In addition, the above capacitor structure can also flexibly add or replace the specifications of the laminated busbar 331 and the electrolytic capacitor 332 according to the change of the system power, thereby also facilitating the improvement of the adaptability of the capacitor assembly 330.

[0072] In some embodiments, Figure 2 , Figure 4 and Figure 5 As shown, the capacitor assembly 330 also includes a plurality of equalizing resistors 333, and the equalizing resistors 333 are electrically connected to the laminated busbar 331. By providing the equalizing resistors 333, the voltage difference between the electrolytic capacitors 332 can be balanced, which is beneficial to prolonging the life of the capacitor assembly 330 and improving the stability of the capacitor assembly 330.

[0073] In some embodiments, Figure 2 and Figure 5 As shown, the input end of the inverter 322 and the DC output end of the rectifier 321 are also electrically connected to an absorption capacitor 334. By providing the absorption capacitor 334, the DC voltage and the output AC voltage can be further smoothed to maintain voltage stability, thereby facilitating the improvement of the stability and reliability of the driving module 300.

[0074] In some embodiments, Figure 1 , Figure 2 and Figure 6 As shown, the heat dissipation module 600 further includes a first heat dissipation fan 630, which is arranged corresponding to the first air outlet 103 and installed on the housing 100. Thus, the first heat dissipation fan 630 can form forced convection heat dissipation in the first heat dissipation channel 1011, thereby facilitating further improving the heat dissipation effect on the rectifier 321, the inverter 322 and the capacitor assembly 330.

[0075] In a specific embodiment, Figure 2 and Figure 6As shown, the housing 100 is provided with a bottom plate 140 and a top plate 150 relatively along its height direction, the first heat dissipation channel 1011 extends along the height direction of the housing 100, the first air inlet 102 and the first air outlet 103 are respectively provided on the bottom plate 140 and the top plate 150 and are communicated with the first heat dissipation channel 1011, the first heat dissipation fan 630 is provided corresponding to the first air outlet 103, and the electrolytic capacitor 332 is located at one side of the radiator 620 along the height direction of the housing 100. In this way, the wind direction in the first heat dissipation channel 1011 is parallel to the height direction of the housing 100, the convection effect is maximized, and the internal hot air can be discharged smoothly, thereby facilitating further improvement of the heat dissipation effect.

[0076] In some embodiments, Figure 2 , Figures 4 to 6 As shown, the first bracket 200, the second bracket 610 and the housing 100 are arranged to form a second heat dissipation channel 1012, and the housing 100 is further formed with a second air outlet 104 communicating with the second heat dissipation channel 1012. The power element assembly 320 further includes a power connection terminal 323, a plurality of copper bars 324, a contactor 325 and a pre-charging resistor 326 located in the second heat dissipation channel 1012.

[0077] The above components are all in the second heat dissipation channel 1012, and the housing 100 is also formed with a second air outlet 104 connected to the second heat dissipation channel 1012. As a result, the second heat dissipation channel 1012 can dissipate heat for the above components, especially for the copper bar 324. The reason why the second heat dissipation channel 1012 is only provided with an air outlet but not an air inlet is that the second bracket 610 and the first bracket 200 are clearance-matched when connected to the housing 100, and the second bracket 610 and the first bracket 200 are provided with through holes, threading holes and other structures, so that the first heat dissipation channel 1011 and the second heat dissipation channel 1012 are not completely isolated. Therefore, the external air can enter the second heat dissipation channel 1012 by means of the first air inlet 102, the heat dissipation holes provided on the housing 100, and the through holes, threading holes and other structures on the second bracket 610 and the first bracket 200, and then be discharged through the second air outlet 104. Thus, the convection heat dissipation requirement of the second heat dissipation channel 1012 is met, and at the same time, there is no need to set an additional air inlet for the second heat dissipation channel 1012, which is conducive to simplifying the structure and reducing the manufacturing cost while ensuring the heat dissipation requirement of the second heat dissipation channel 1012. In addition, the power terminal 323, the plurality of copper bars 324, the contactor 325 and the pre-charge resistor 326 are arranged in the second heat dissipation channel 1012, and are spaced apart from the drive substrate 310, which can also improve the adverse effect of the large heat generation of the power element assembly 320 on the drive substrate 310, thereby reducing the probability of damage to the drive module 300, which is conducive to improving the life and performance of the elevator control cabinet 10.

[0078] Further, in some embodiments, the power terminal 323 is electrically connected to both the rectifier 321 and the inverter 322 through the copper bus 324, that is, the power terminal 323 is electrically connected to the rectifier 321 through the copper bus 324, and the power terminal 323 is electrically connected to the inverter 322 through the copper bus 324. The power terminal 323 is electrically connected to the contactor 325 through the copper bus 324. The electrical connection between the components is realized through the copper bus 324, which can increase the carrying current, so that the above structure can be applied to the elevator control cabinet 10 with a power of 75kw and above, and it is also beneficial to improve the reliability and stability of the drive module 300.

[0079] Further, the pre-charging resistor 326 is electrically connected to the contactor 325, and the contactor 325 is electrically connected to the driving substrate 310 through a conductive wire harness. Figure 3 As shown, the drive substrate 310 is provided with a second interface 313 for electrically connecting to the contactor 325. In this way, the contactor 325 can interact with the drive substrate 310, and the pre-charging resistor 326, the contactor 325 and the drive substrate 310 form an integrated pre-charging board in the related art.

[0080] Further, the power terminal 323 is fixedly connected to the housing 100, and the contactor 325 and the pre-charging resistor 326 are fixedly connected to the second bracket 610. For example, the power terminal 323 is fixedly connected to the first side plate 110 and the third side plate 120 of the housing 100 through a fixed bracket. Thus, the fixed installation of the power terminal 323, the contactor 325 and the pre-charging resistor 326 inside the elevator control cabinet 10 is realized. In addition, the power terminal 323 and the contactor 325 and the pre-charging resistor 326 are fixed on different structures of the elevator control cabinet 10, which is conducive to improving the utilization rate of the accommodating cavity 101 inside the elevator control cabinet 10, and then it is conducive to reducing the volume of the elevator control cabinet 10 to achieve its miniaturization requirements. Based on the above structure, the elevator control cabinet 10 of the present application is about 50% of the volume of the elevator control cabinet of the same power in the related art.

[0081] Alternatively, if Figure 4 As shown, the elevator control cabinet 10 also includes a terminal fixing member 335, one end of the terminal fixing member 335 is connected to the power terminal 323, and the other end is connected to the bottom plate 140 and the bottom of the second bracket 610, thereby further improving the installation reliability of the power terminal 323.

[0082] It should be noted that, in this embodiment, the plurality of copper bars 324 are used to realize electrical connection between different components, and both ends of each copper bar 324 are fixedly connected to other components. Therefore, when other components are fixed, the plurality of copper bars 324 are also fixedly installed in the accommodating cavity 101. This is conducive to improving the convenience of arranging the copper bars 324.

[0083] In some embodiments, Figure 5 As shown, the heat dissipation module 600 further includes a second heat dissipation fan 640, the power element assembly 320 further includes a fan control board 327, the second heat dissipation fan 640 is arranged corresponding to the second air outlet 104 and is installed on the housing 100, the fan control board 327 is electrically connected to the second heat dissipation fan 640, the fan control board 327 is electrically connected to the drive substrate 310 through a conductive wire harness, and the fan control board 327 is fixedly connected to the second bracket 610. Specifically, as Figure 3 As shown, the driving substrate 310 is provided with a third interface 314 for electrically connecting to the fan control board 327. In this way, the fan control board 327 can interact with the driving substrate 310, thereby controlling the start and stop and the speed of the second heat dissipation fan 640 through the instructions of the driving substrate 310. This is conducive to further improving the heat dissipation effect of the second heat dissipation channel 1012 on its internal components.

[0084] In some embodiments, Figure 5 Shown and referenced Figure 3 The power terminal 323 includes three AC input terminals and four AC output terminals. The multiple copper bars 324 include three AC input copper bars 3241 respectively connected to the three AC input terminals and four AC output copper bars 3242 respectively connected to the four AC output terminals. The power element assembly 320 also includes a lightning protection board 328 and multiple current sensors 329. The lightning protection board 328 is fixedly connected to the three AC input copper bars 3241. Each current sensor 329 is correspondingly connected to an AC output copper bar 3242. The current sensor 329 is electrically connected to the drive substrate 310 through a conductive wire harness.

[0085] In this embodiment, the power terminal 323 includes three AC input terminals and four AC output terminals. That is, the input power is three-phase AC power, and the output power is three-phase AC power and one functional terminal. The lightning protection board 328 is used to prevent the various components on the drive module 300 from being damaged by surge voltage, thereby improving the safety and stability of the elevator control cabinet 10. The lightning protection board 328 is directly connected to the three AC input copper bars 3241, for example, by welding. This is conducive to improving the convenience and reliability of the electrical connection between the two. The current sensor 329 is used to monitor the output current, so as to realize functions such as overload protection and fault alarm. Each current sensor 329 is electrically connected to the drive substrate 310 through a conductive wire harness. Specifically, as Figure 3 As shown, the driving substrate 310 is provided with a fourth interface 315 for electrically connecting to the current sensor 329 , and the current sensor 329 is plugged into the fourth interface 315 through a wiring harness to achieve interaction with the driving substrate 310 .

[0086] In some embodiments, Figures 4 to 6 As shown, the drive module 300 also includes a reactor 340 located in the second heat dissipation channel 1012, the contactor 325 is electrically connected to the reactor 340, and the reactor 340 is fixedly connected to the second bracket 610. In the present embodiment, the drive module 300 also includes a reactor 340, and the reactor 340 can be electrically connected to the contactor 325 through a copper bar 324, for example, and the other end of the reactor 340 can be connected to the positive capacitor copper bar terminal 3311 of the laminated busbar 331 through the copper bar 324. The reactor 340 can play the role of voltage stabilization, current limiting, filtering, etc., so as to help improve the quality of output electricity. The reactor 340 is a heating element, and the reactor 340 is arranged in the second heat dissipation channel 1012, so as to also help improve the heat dissipation effect of the reactor 340, and then help improve the reliability and stability of the drive module 300.

[0087] The following briefly describes the electrical connection mode between the drive substrate 310, the power element assembly 320, the capacitor assembly 330, and the reactor 340 in this application. Specifically, the power element assembly 320 includes a rectifier 321, an inverter 322, a power terminal 323, a copper bar 324, a contactor 325, a pre-charge resistor 326, a fan control board 327, a lightning protection board 328, and a current sensor 329, and the capacitor assembly 330 includes a laminated busbar 331, an electrolytic capacitor 332, and a voltage-sharing resistor 333. First, an external AC power supply is connected to the input end of the power terminal 323, and the input end is connected to the rectifier 321 through the copper bar 324, while the lightning protection board 328 is connected in parallel to three AC input copper bars 3241. The rectifier 321 rectifies the AC power into a DC power, and the rectifier 321 includes a DC positive terminal and a DC negative terminal, and the DC output end of the rectifier 321 is connected in parallel with an absorption capacitor 334. The DC positive terminal of the rectifier 321 is connected to the contactor 325 after being collected by the copper bar 324, and the contactor 325 is connected to the reactor 340 through the copper bar 324. At the same time, the contactor 325 is connected in parallel with a pre-charging resistor 326, and the reactor 340 is connected to the positive capacitor copper bar terminal 3311 of the laminated busbar 331 through the copper bar 324. After the DC negative terminal of the rectifier 321 is collected by the copper bar 324, one end is connected to the negative capacitor copper bar terminal 3312 of the laminated busbar 331, and the other end is connected to a terminal of the power terminal 323. The other terminal of the power terminal 323 is connected to the positive capacitor copper bar terminal 3311 of the laminated busbar 331 through the copper bar 324. The positive capacitor copper bar terminal 3311 and the negative capacitor copper bar terminal 3312 of the laminated busbar 331 are respectively connected to the positive and negative poles of the input end of the inverter 322, and the input end of the inverter 322 is connected in parallel with the absorption capacitor 334. The inverter 322 converts the input current into alternating current, and connects it to the power connection terminal 323 through four AC output copper bars 3242. Meanwhile, the four output copper bars 3242 are also connected to current sensors 329. The current sensor 329, the fan control board 327, the inverter 322, and the contactor 325 are respectively connected to the drive substrate 310 through conductive wire harnesses.

[0088] In some embodiments, Figure 2 As shown, the elevator control cabinet 10 also includes a control module 500 and a power module 400. The drive module 300, the control module 500 and the power module 400 are electrically connected to each other. The control module 500 includes a control board 510, and the power module 400 includes a power board 410. The control board 510 and the power board 410 are both fixedly connected to the first bracket 200. The control board 510, the power board 410, and the drive substrate 310 are located on the same side of the first bracket 200.

[0089] In this embodiment, the elevator control cabinet 10 also includes a control module 500 and a power module 400, the control module 500 includes a control board 510, and the power module 400 includes a power board 410. The power module can take power from the power connection terminal 323 of the power element assembly 320 and then convert it into power supplies of various voltage levels to power the various components of the drive module 300 and the control module 500. The control module 500 takes power from the power module 400 through a wiring harness; the control board 510 in the control module 500 is the core of the control module, which drives the elevator traction machine to work by controlling the drive module 300, thereby realizing the control functions such as the elevator car rising, descending, stopping the door opening and its shock absorption. Optionally, a control core board 511 is usually provided on the control board 510, and the control core board 511 can be, for example, a microprocessor, a chip, etc.

[0090] In this embodiment, the control board 510 and the power board 410 are fixedly connected to the first bracket 200, and both are located on the same side of the first bracket 200 as the drive substrate 310. In this way, the elevator control cabinet 10 of the present application realizes a layered design. Specifically, in the accommodating cavity 101 of the shell 100, the space on the side of the second bracket 610 away from the drive substrate 310 is the first layer, which is the first heat dissipation channel 1011, which is used to dissipate heat for the radiator 620 and the capacitor assembly 330; the space between the first bracket 200 and the second bracket 610 is the second layer, which is the second heat dissipation channel 1012, which is used to dissipate heat for the reactor 340, part of the power element assembly 320 such as the copper bus 324 and other components; the space on the side of the first bracket 200 close to the drive substrate 310 is the third layer, which is used to set the control module, power module, drive substrate 310 and other structures. Thus, through the above-mentioned layered design, the space of the accommodating cavity 101 can be fully utilized, so that the volume of the elevator control cabinet 10 of the present application is about 45% of the elevator control cabinet of the same power in the related art. In addition, the control module and the power module are arranged at the outermost side, so as to improve the convenience of debugging and maintenance of the elevator control cabinet 10.

[0091] Furthermore, the control board 510 of the control module 500, the power board 410 of the power module 400, and the drive substrate 310 are arranged on the same side of the first bracket 200, and the power element assembly 320, the reactor 340, and the capacitor assembly 330 are arranged on the side of the first bracket 200 away from the drive substrate 310, so that the hardware board layer and the power device layer can be arranged in layers, on the one hand, the space in the accommodating cavity 101 can be further reasonably utilized to meet the miniaturization requirements of the elevator control cabinet 10. On the other hand, it can also avoid the adverse effects of the large heat generated by the device layer on the hardware board layer, which is conducive to improving the life and performance of the elevator control cabinet 10. .

[0092] In some embodiments, Figure 3As shown, the power module 400 further includes a power cooling fan 420, which is fixedly connected to the first bracket 200 and is used to dissipate heat from the power board 410. This helps to improve the reliability and stability of the power board 410.

[0093] In some embodiments, Figure 2 and Figure 3 As shown, the elevator control cabinet 10 also includes a human-machine interaction module 700 arranged in the accommodating cavity 101, the human-machine interaction module 700 is electrically connected to the drive module 300, the control module 500 and the power module 400, the human-machine interaction module 700 is fixedly connected to the first bracket 200, and the human-machine interaction module 700 and the drive substrate 310 are located on the same side of the first bracket 200.

[0094] Specifically, the human-computer interaction module 700 includes an emergency stop button, a conversion switch, a button board, a display panel, etc. The human-computer interaction module 700 draws power from the power module 400 through a wiring harness. The emergency stop button in the human-computer interaction module 700 is connected to the elevator safety circuit through a wiring harness to realize the emergency shutdown of the elevator. The conversion switch in the human-computer interaction module 700 is connected to the elevator safety circuit through a wiring harness to realize the conversion of different working states of the elevator. The button board and display panel in the human-computer interaction module 700 are connected to the control board 510 in the control module 500 through wiring to realize the execution and visual display of human-computer interaction instructions.

[0095] In this embodiment, the human-machine interaction module 700 is also fixedly connected to the first bracket 200 and is located on the same side of the first bracket 200 as the driving substrate 310. On the one hand, the human-machine interaction module 700 is located on the side farthest from the first heat dissipation channel 1011. Such a setting can improve the convenience of personnel operation. On the other hand, it is also conducive to improving the convenience of connecting the human-machine interaction module 700.

[0096] In some embodiments, Figure 2 and Figure 3 As shown, the first bracket 200 includes a first main body 210 and a second main body 220 connected to the first main body 210, and the first main body 210 is located on one side of the second main body 220 in the height direction of the elevator control cabinet 10. The first main body 210 has a first mounting surface 211, and the second main body 220 has a second mounting surface 221. The first mounting surface 211 and the second mounting surface 221 are parallel to each other and not coplanar. The control board 510, the power board 410 and the drive substrate 310 are all mounted on the first mounting surface 211, and the human-machine interaction module 700 is mounted on the second mounting surface 221.

[0097] In this embodiment, the first bracket 200 includes a first main body 210 and a second main body 220. In addition, the first mounting surface 211 and the second mounting surface 221 are parallel to each other and are not coplanar. Through the staggered design of the first bracket 200, the probability of interference between the components on the first bracket 200 and other components can be reduced. In other words, there is enough space on the first bracket 200 to install the above-mentioned multiple components, thereby further improving the utilization rate of the internal space of the accommodating cavity 101, thereby facilitating the miniaturization requirement of the elevator control cabinet 10.

[0098] In some embodiments, the control module 500 further includes a UCMP board (not shown in the figure), which is arranged in the human-machine interaction module 700. The UCMP board refers to an unintended car movement protection system for the elevator car, and the UCMP board is connected to the elevator car through a wiring harness to realize functions such as early door opening and door lock short circuit detection. The UCMP board can be electrically connected to the control board 510 by means of an external wiring harness. The UCMP board is arranged in the human-machine interaction module 700, so as to improve the convenience of maintenance and repair of the UCMP board.

[0099] Furthermore, if Figure 2 As shown, the housing 100 further includes a fourth side panel 160 disposed opposite to the second side panel 130, and the fourth side panel 160 can be regarded as a front cover. The fourth side panel 160 is provided with an operation window 161 for the human-machine interaction module 700 to pass through. Thus, the operator can operate the human-machine interaction module 700 without opening the fourth side panel 160, which is convenient for debugging and maintenance. Furthermore, part of the human-machine interaction module 700 can extend into the operation window 161 and be flush with the outer surface of the fourth side panel 160 to improve the structural regularity of the elevator control cabinet 10.

[0100] Alternatively, if Figure 1 , Figure 2 As shown, the fourth side plate 160 can be a split structure with the upper and lower parts connected in a detachable manner, thereby improving the convenience of disassembly of the fourth side plate 160 and further facilitating the debugging and maintenance of the human-computer interaction module 700.

[0101] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0102] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0103] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0104] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0106] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An elevator control cabinet, It is characterized in that include: A housing, wherein the housing is formed with a receiving cavity; A first bracket, disposed in the accommodating cavity; as well as A driving module is disposed in the accommodating cavity, and the driving module includes a driving substrate and a power element assembly. The driving substrate is fixedly connected to one side of the first bracket, and the power element assembly is located on the other side of the first bracket and is spaced apart from the first bracket. The power element assembly is connected to the driving substrate through a conductive harness.

2. The elevator control cabinet according to claim 1, It is characterized in that The elevator control cabinet further includes a heat dissipation module disposed in the accommodating cavity, wherein the heat dissipation module is spaced apart from the first bracket and is located on a side of the first bracket away from the driving substrate; The power element assembly includes a plurality of power elements, a portion of the power elements are connected to the housing, and another portion of the power elements are connected to the heat dissipation module, and the heat dissipation module is used to dissipate heat from the power element assembly.

3. The elevator control cabinet according to claim 1, It is characterized in that The elevator control cabinet further includes a heat dissipation module disposed in the accommodating cavity, the heat dissipation module including a second bracket and a radiator connected to the second bracket, the second bracket being spaced apart from the first bracket and being located on a side of the first bracket away from the drive substrate; The power element assembly includes a rectifier and an inverter. The rectifier and the inverter are both fixed to the outer surface of the heat sink. The inverter is electrically connected to the driving substrate through the conductive wire harness.

4. The elevator control cabinet according to claim 3, It is characterized in that The second bracket and the shell are arranged to form a first heat dissipation channel, and the shell is further formed with a first air inlet and a first air outlet communicating with the first heat dissipation channel; The heat sink is located in the first heat dissipation channel, the second bracket is provided with a first through hole, and the rectifier and the inverter are connected to a side surface of the heat sink close to the first bracket through the first through hole.

5. The elevator control cabinet according to claim 4, It is characterized in that The driving module further includes a capacitor component electrically connected to the rectifier and the inverter, at least a portion of the capacitor component is located in the first heat dissipation channel, and the capacitor component is fixedly connected to the second bracket or the housing.

6. The elevator control cabinet according to claim 5, It is characterized in that The capacitor assembly includes a laminated busbar and a plurality of electrolytic capacitors connected to the laminated busbar. The second bracket is provided with a second through hole. The laminated busbar is connected to the first bracket. The plurality of electrolytic capacitors extend into the first heat dissipation channel through the second through hole.

7. The elevator control cabinet according to claim 5, It is characterized in that The capacitor assembly includes a laminated busbar and a plurality of electrolytic capacitors connected to the laminated busbar; The shell includes a first side plate and a third side plate that are arranged opposite to each other, and a second side plate connecting the first side plate and the third side plate, the second side plate is located on the side of the second bracket away from the first bracket, the second bracket is respectively connected to the first side plate and the third side plate, the second bracket is provided with a second through hole, the multiple electrolytic capacitors extend into the first heat dissipation channel through the second through hole and are fixedly connected to the second side plate.

8. The elevator control cabinet according to claim 4, It is characterized in that The heat dissipation module further includes a first heat dissipation fan, which is arranged corresponding to the first air outlet and installed on the housing.

9. The elevator control cabinet according to claim 3, It is characterized in that The first bracket, the second bracket and the shell are arranged to form a second heat dissipation channel, and the shell is further formed with a second air outlet communicating with the second heat dissipation channel; The power element assembly also includes a power connection terminal, a plurality of copper bars, a contactor and a pre-charging resistor located in the second heat dissipation channel.

10. The elevator control cabinet according to claim 9, It is characterized in that The power connection terminal is electrically connected to the rectifier and the inverter through the copper busbar, the power connection terminal is electrically connected to the contactor through the copper busbar, the pre-charging resistor is electrically connected to the contactor, and the contactor is electrically connected to the drive substrate through a conductive wire harness; The power connection terminal is fixedly connected to the housing, and the contactor and the pre-charging resistor are fixedly connected to the second bracket.

11. The elevator control cabinet according to claim 9, It is characterized in that The heat dissipation module also includes a second heat dissipation fan; The power element assembly also includes a fan control board. The second cooling fan is arranged corresponding to the second air outlet and is installed on the shell. The fan control board is electrically connected to the second cooling fan. The fan control board is electrically connected to the drive substrate through a conductive harness. The fan control board is fixedly connected to the second bracket.

12. The elevator control cabinet according to claim 9, It is characterized in that The power connection terminals include three AC input terminals and four AC output terminals; The plurality of copper bars include three AC input copper bars respectively connected to the three AC input terminals and four AC output copper bars respectively connected to the four AC output terminals; The power element assembly also includes a lightning protection board and a plurality of current sensors. The lightning protection board is fixedly connected to the three AC input copper busbars. Each current sensor is correspondingly connected to one of the AC output copper busbars. The current sensor is electrically connected to the drive substrate via a conductive wire harness.

13. The elevator control cabinet according to claim 9, It is characterized in that The driving module further includes a reactor located in the second heat dissipation channel, the contactor is electrically connected to the reactor, and the reactor is fixedly connected to the second bracket.

14. The elevator control cabinet according to claim 1, It is characterized in that The elevator control cabinet also includes a control module and a power module. The drive module, the control module and the power module are electrically connected to each other. The control module includes a control board, and the power module includes a power board. The control board and the power board are both fixedly connected to the first bracket. The control board, the power board and the drive substrate are located on the same side of the first bracket.

15. The elevator control cabinet according to claim 14, It is characterized in that The elevator control cabinet also includes a human-machine interaction module, which is electrically connected to the drive module, the control module and the power module. The human-machine interaction module is fixedly connected to the first bracket, and the human-machine interaction module and the drive substrate are located on the same side of the first bracket.

16. The elevator control cabinet according to claim 15, It is characterized in that The first bracket includes a first main body and a second main body connected to the first main body, and the first main body is located on one side of the second main body in the height direction of the elevator control cabinet; The first main body has a first mounting surface, the second main body has a second mounting surface, the first mounting surface and the second mounting surface are parallel to each other and not coplanar, the control board, the power board and the drive substrate are all mounted on the first mounting surface, and the human-computer interaction module is mounted on the second mounting surface.

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