Rectifying circuit device of electromagnetic power-off brake

Abstract

The invention discloses a rectifying circuit device of an electromagnetic power-off brake, and relates to the technical field of rectifiers. The rectifying circuit device of the electromagnetic power-off brake comprises an external component; the alternating current circuit assembly is arranged in the external assembly and is used for converting alternating current into direct current; the direct current circuit assembly is arranged in the external assembly and is used for adjusting the voltage of the direct current; and the relay assembly is arranged in the external assembly. The operation stability of the rectification circuit device is improved.

Description

Technical Field

[0001] This application relates to the technical field of rectifiers, and particularly to a rectifier circuit device for an electromagnetic power-off brake. Background Art

[0002] Currently, for small motor braking, an electromagnetic power-off brake is usually installed at the tail of the motor. The coil of the electromagnetic power-off brake is powered by direct current. Since there is no dedicated DC power supply on-site, a rectifier is usually used to rectify alternating current into direct current for use. Usually, one frequency converter synchronously drives several motors on-site. When the rectifier of a certain motor fails or the output DC voltage cannot drive the brake, the braking of that motor will occur. In the light case, it will cause the tripping of that motor, and in the severe case, it will cause frequency conversion overload, resulting in the loss of drive for the entire group of motors. Therefore, the existing rectifier circuit device has technical problems such as poor operating stability. Summary of the Invention

[0003] The embodiments of this application provide a rectifier circuit device for an electromagnetic power-off brake to solve the technical problems such as poor operating stability in the prior art.

[0004] In the first aspect of the embodiments of this application, a rectifier circuit device for an electromagnetic power-off brake is provided, including:

[0005] External components;

[0006] An AC circuit component, which is arranged in the external components and is used to convert alternating current into direct current;

[0007] A DC circuit component, which is arranged in the external components and is used to adjust the voltage of the direct current;

[0008] A relay component, which is arranged in the external components.

[0009] The rectifier circuit device for the electromagnetic power-off brake in this embodiment is composed of multiple independent components such as external components, AC circuit components, DC circuit components, and relay components, realizing the modularization of the rectifier circuit device, and thus improving the operating stability of the rectifier circuit device. Brief Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a structural block diagram of the rectifier circuit device for the electromagnetic power-off brake provided by the embodiments of this application;

[0012] Figure 2 One of the schematic diagrams of the rectifier circuit device of the electromagnetic power-off brake provided by the embodiment of the present application;

[0013] Figure 3 Another schematic diagram of the rectifier circuit device of the electromagnetic power-off brake provided by the embodiment of the present application;

[0014] Figure 4 Another schematic diagram of the rectifier circuit device of the electromagnetic power-off brake provided by the embodiment of the present application;

[0015] Figure 5 Another schematic diagram of the rectifier circuit device of the electromagnetic power-off brake provided by the embodiment of the present application;

[0016] Among them, Figure 1 、 Figure 2 and Figure 3 The corresponding relationship between the reference numerals and the component names in the figures is as follows:

[0017] 100 rectifier circuit device, 101 external component, 102 AC circuit component, 103 DC circuit component, 104 relay component, 1011 housing, 1012 base plate, 1013 cable sleeve, 1014 terminal block, 1015 push-button switch, 1016 fault indicator light, 1021 AC contactor group, 1022 rectifier group, 1031 DC voltage detection switch group, 1032 DC contactor group. Detailed implementation manners

[0018] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below through the drawings and specific embodiments. It should be understood that the specific features in the embodiments of this specification and the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. Without conflict, the technical features in the embodiments of this specification and the embodiments can be combined with each other.

[0019] In this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. The term "more than two" includes two or more than two cases.

[0020] In some embodiments, as Figure 1 shown, an electromagnetic power-off brake rectifier circuit device 100 is provided in an embodiment of the present application, comprising:

[0021] External component 101;

[0022] An AC circuit component 102, which is arranged in the external component 101 and is used to convert alternating current into direct current;

[0023] A DC circuit component 103, which is arranged in the external component 101 and is used to adjust the voltage of the direct current;

[0024] A relay component 104, which is arranged in the external component 101.

[0025] In this embodiment, an electromagnetic power-off brake rectifier circuit device 100 is proposed. The electromagnetic power-off brake is arranged at the tail of the motor to achieve rapid stopping and accurate positioning, and can be used in occasions such as safe braking when the motor is powered off.

[0026] The rectifier circuit device 100 is used to convert alternating current into direct current, and then used to supply power to the electromagnetic power-off brake.

[0027] The rectifier circuit device 100 includes components such as an external component 101, an AC circuit component 102, a DC circuit component 103 and a relay component 104.

[0028] Specifically, the external component 101 is a peripheral part of the rectifier circuit device 100 and is used to protect components such as the AC circuit component 102, the DC circuit component 103 and the relay component 104.

[0029] The AC circuit component 102 is arranged in the external component 101 and is used to convert alternating current into direct current.

[0030] The DC circuit component 103 is disposed in the external component 101 and is used to adjust the voltage of the direct current.

[0031] The relay component 104 is disposed in the external component 101 and is used to connect the AC circuit component 102 and the DC circuit component 103.

[0032] Exemplarily, the relay component 104 can serve as a control switch between the AC circuit component 102 and the DC circuit component 103.

[0033] Exemplarily, the AC circuit component 102 can be connected to an AC power source to convert the alternating current output by the AC power source into direct current.

[0034] Exemplarily, the DC circuit component 103 can be connected to the AC circuit component 102 and is used to adjust the voltage of the direct current output by the AC circuit component 102.

[0035] Exemplarily, the relay component 104 can include a plurality of contacts, and through remote control, the control logic between the AC circuit component 102 and the DC circuit component 103 can be realized.

[0036] The rectifier circuit device 100 of the electromagnetic power-off brake in this embodiment is composed of a plurality of independent components such as the external component 101, the AC circuit component 102, the DC circuit component 103, and the relay component 104, realizing the modularization of the rectifier circuit device 100, and further improving the operation stability of the rectifier circuit device 100.

[0037] In some embodiments, an embodiment of the present application provides a rectifier circuit device 100 of an electromagnetic power-off brake. The external component 101 includes: a housing 1011, a bottom plate 1012, a cable sleeve 1013, a terminal block 1014, a push-button switch 1015, and a fault indicator light 1016.

[0038] In this embodiment, the external component 101 is composed of parts such as the housing 1011, the bottom plate 1012, the cable sleeve 1013, the terminal block 1014, the push-button switch 1015, and the fault indicator light 1016.

[0039] Exemplarily, the housing 1011 can be an insulating housing in the shape of a cuboid.

[0040] Exemplarily, the bottom plate 1012 can be made of insulating material.

[0041] Exemplarily, the cable sleeve 1013 can be made of insulating material.

[0042] Exemplarily, the terminal block 1014 can be used to connect the power supply line of the AC power source.

[0043] Exemplarily, the button switch 1015 can be the main switch of the rectifier circuit device 100, used to start or shut down the rectifier circuit device 100.

[0044] Exemplarily, the fault indicator light 1016 is used to indicate the fault condition of the rectifier circuit device 100. When a fault occurs in the rectifier circuit device 100, the fault indicator light 1016 can display lights of different colors, and the lights of different colors can indicate the fault type of the rectifier circuit device 100.

[0045] In some embodiments, in the embodiments of the present application, a rectifier circuit device 100 of an electromagnetic power-off brake is provided, and the cable sleeve 1013, the button switch 1015, and the fault indicator light 1016 are respectively arranged on the housing 1011;

[0046] The terminal block 1014 is arranged on the bottom plate 1012;

[0047] The housing 1011 is connected to the bottom plate 1012.

[0048] In this embodiment, the cable sleeve 1013, the button switch 1015, and the fault indicator light 1016 are respectively arranged on the housing 1011.

[0049] Exemplarily, the cable sleeve 1013, the button switch 1015, and the fault indicator light 1016 can be fixed on the outer surface of the housing 1011.

[0050] The terminal block 1014 is arranged on the bottom plate 1012, and the housing 1011 is connected to the bottom plate 1012.

[0051] Exemplarily, the housing 1011 and the bottom plate 1012 can be hermetically connected through an insulating material.

[0052] In some embodiments, in the embodiments of the present application, a rectifier circuit device 100 of an electromagnetic power-off brake is provided. The cable sleeve 1013 includes an AC inlet sleeve and a DC line sleeve.

[0053] In this embodiment, the cable sleeve 1013 is composed of an AC inlet sleeve and a DC line sleeve.

[0054] Exemplarily, the cable sleeve 1013 is used to protect the wires between the DC circuit components 103 and the AC circuit components 102.

[0055] Exemplarily, the AC inlet sleeve is used to protect the wires of the AC circuit components 102, and the DC line sleeve is used to protect the wires of the DC circuit components 103.

[0056] In some embodiments, an embodiment of the present application provides a rectifier circuit device 100 for an electromagnetic power-off brake, and the terminal block 1014 includes a plurality of terminals.

[0057] In this embodiment, a plurality of terminals are provided on the terminal block 1014, and the terminals are connection terminals for connecting the wires of the power supply.

[0058] Exemplarily, 10 terminals are provided on the terminal block 1014, which are X0 to X9 respectively.

[0059] In some embodiments, an embodiment of the present application provides a rectifier circuit device 100 for an electromagnetic power-off brake, and the AC circuit component 102 includes an AC contactor group 1021 and a rectifier group 1022.

[0060] In this embodiment, the AC circuit component 102 is composed of two parts: an AC contactor group 1021 and a rectifier group 1022. The AC contactor group 1021 is used to receive alternating current, and the rectifier group 1022 is used to convert alternating current into direct current.

[0061] In some embodiments, an embodiment of the present application provides a rectifier circuit device 100 for an electromagnetic power-off brake, and the AC contactor group 1021 includes a plurality of AC contactors;

[0062] The rectifier group 1022 includes a plurality of rectifiers.

[0063] In this embodiment, the AC contactor group 1021 is composed of a plurality of AC contactors 1021, and the rectifier group 1022 is composed of a plurality of rectifiers 1022.

[0064] An AC contactor is an automatic switching electrical appliance for connecting or disconnecting the main circuit of a motor or load. It is an electrical appliance that uses electromagnetic force to close or disconnect the switch. It is suitable for frequent operation, remote control of high-power circuits, and has the protection performance of low-voltage release.

[0065] Exemplarily, the AC contactor group 1021 includes 4 AC contactors, which are KM0, KM1, KM2, KM3, and KM4 respectively.

[0066] Exemplarily, the rectifier group 1022 includes 3 rectifiers, which are Z1, Z2, and Z3 respectively. Among them, Z1 and Z2 are main rectifiers, and Z3 is a standby rectifier.

[0067] The fault indicator 1016 can include L1 and L2, and L1 and L2 are respectively used to indicate the faults of Z1 and Z2.

[0068] In some embodiments, an embodiment of the present application provides a rectifier circuit device 100 for an electromagnetic power-off brake, and the DC circuit assembly 103 includes a DC voltage detection switch group 1031 and a DC contactor group 1032.

[0069] In this embodiment, the DC circuit assembly 103 consists of two parts: a DC voltage detection switch group 1031 and a DC contactor group 1032. The DC voltage detection switch group 1031 is used to detect the output voltage of the DC contactor group 1032, and the DC contactor group 1032 is used to receive direct current.

[0070] In some embodiments, an embodiment of the present application provides a rectifier circuit device 100 for an electromagnetic power-off brake, and the DC voltage detection switch group 1031 includes a plurality of DC voltage detection switches;

[0071] The DC contactor group 1032 includes a plurality of DC contactors;

[0072] Among them, the plurality of DC contactors correspond to the plurality of DC voltage detection switches one by one.

[0073] In this embodiment, the DC voltage detection switch group 1031 is composed of a plurality of DC voltage detection switches 1031, and the DC contactor group 1032 is composed of a plurality of DC contactors 1032.

[0074] A DC contactor refers to a contactor whose iron core is controlled by a DC coil, and its load can be DC or AC. The iron core of a DC contactor is different from that of an AC contactor. There is no eddy current in it, so it is generally made of soft steel or industrial pure iron in a circular shape.

[0075] Exemplarily, the DC contactor group 1032 may include two DC contactors Z1 and Z2, and the DC voltage detection switch group 1031 may include two DC voltage detection switches V1 and V2 to detect the output voltage values of Z1 and Z2 respectively.

[0076] In some embodiments, an embodiment of the present application provides a rectifier circuit device 100 for an electromagnetic power-off brake, and the relay assembly 104 includes a plurality of intermediate relays.

[0077] In this embodiment, the relay assembly 104 is composed of a plurality of intermediate relays.

[0078] Exemplarily, the intermediate relay group may include two intermediate relays KA0 and KA1.

[0079] Exemplarily, the X9 and X0 terminals of the terminal block 1014 are respectively connected to the 24VDC and 0VDC of the switch output module of the PLC (Programmable Logic Controller), the X7 and X8 terminals are respectively connected to the positive and negative poles of the external independent control power supply, the X1 and X2 terminals are connected to the input 220VAC, the X3 and X4 terminals are connected to the output of the main rectifier Z1, and the X5 and X6 terminals are connected to the output of the main rectifier Z2.

[0080] Exemplarily, the normally open contact of the AC contactor KM0 is connected to the normally closed contacts of the AC contactors KM1 and KM2 and the normally open contact of KM3.

[0081] Exemplarily, the normally closed contacts of the AC contactors KM1 and KM2 are connected to the AC input terminals of the main rectifiers Z1 and Z2, and the normally open contact of KM3 is connected to the AC input terminal of the standby rectifier Z3.

[0082] Exemplarily, the DC voltage input terminals of the DC voltage detection switches V1 and V2 are respectively connected to the DC output terminals of the main rectifiers Z1 and Z2.

[0083] Exemplarily, the DC output terminals of the main rectifiers Z1 and Z2 are respectively connected to the electromagnetic brakes 1 and 2 through the normally closed contacts of the DC contactors KM4 and KM5.

[0084] Exemplarily, the DC output terminals of the standby rectifier Z3 are respectively connected to the electromagnetic brakes 1 and 2 through the normally open contacts of the DC contactors KM4 and KM5.

[0085] Exemplarily, the coil of the intermediate relay KA0 is connected to X9 and X0.

[0086] Exemplarily, the coils of the AC contactor KM0 and the intermediate relay KA1 are connected to the normally open contact of the intermediate relay KA0 and the push button switch 1015.

[0087] Exemplarily, the operating voltage input terminals of the DC voltage detection switches V1 and V2 are connected to the normally open contact of the intermediate relay KA1. The voltage detection input terminals of the DC voltage detection switches V1 and V2 are respectively connected to the DC output terminals of the main rectifiers Z1 and Z2. The DC voltage detection switches V1 and V2 are normally open type relay outputs. The output terminal of V1 is respectively connected to the coils of the AC contactors KM1, KM3 and the DC contactor KM4. The output terminal of V2 is respectively connected to the coils of the AC contactors KM2, KM3 and the DC contactor KM5.

[0088] Exemplarily, the indicator lights L1 and L2 are respectively connected to the output terminals of the DC voltage detection switches V1 and V2.

[0089] In some embodiments, an embodiment of the present application provides a control method for a rectifier circuit device 100. In the remote automation control mode:

[0090] 1. The 24VDC of the PLC digital output module supplies power to the coil of the intermediate relay KA0. The normally open contacts of the intermediate relay KA0 are closed to conduct 24VDC to the AC contactor KM0 and the coil of the intermediate relay KA1. The normally open contacts of the AC contactor KM0 are closed, and 220VAC is conducted to the main rectifiers Z1 and Z2 through the normally closed contacts of the AC contactors KM1 and KM2. The main rectifiers Z1 and Z2 output direct current. The normally open contacts of the intermediate relay KA1 are closed to provide operating voltage for the DC voltage detection switches V1 and V2.

[0091] 2. The direct current output by the main rectifiers Z1 and Z2 is conducted to the electromagnetic brakes 1 and 2 through the normally closed contacts of the DC contactors KM4 and KM5 respectively.

[0092] 3. The DC voltage detection switches V1 and V2 respectively detect the DC voltages output by the main rectifiers Z1 and Z2.

[0093] 4. When the direct current output by the main rectifiers Z1 and Z2 is lower than the standard value, taking Z1 as an example, when the DC voltage detection switch V1 detects that the DC voltage output by the main rectifier Z1 is lower than the set voltage value, the relay of the DC voltage detection switch V1 is closed to supply power to the indicator light L1,

[0094] the AC contactors KM1, KM3 and the coil of the DC contactor KM4. The indicator light L1 is powered on to give an alarm. The normally closed contacts of the AC contactor KM1 and the DC contactor KM4 are opened to cut the main rectifier Z1 out of the circuit. The normally open contacts of the AC contactor KM3 are closed to provide 220VAC for the standby rectifier Z3. The normally open contacts of the DC contactor KM4 are closed to conduct the direct current rectified by the standby rectifier Z3 to the electromagnetic brake 1.

[0095] In the local control mode:

[0096] 5. The operator controls the pushbutton switch 1015. When the pushbutton switch 1015 is closed, 24VDC is conducted to the AC contactor KM0 and the coil of the intermediate relay KA1. The normally open contacts of the AC contactor KM0 are closed, and 220VAC is conducted to the main rectifiers Z1 and Z2 through the normally closed contacts of the AC contactors KM1 and KM2. The main rectifiers Z1 and Z2 output direct current. The normally open contacts of the intermediate relay KA1 are closed to provide operating voltage for the DC voltage detection switches V1 and V2.

[0097] 6. The direct current output by the main rectifiers Z1 and Z2 is conducted to the electromagnetic brakes 1 and 2 through the normally closed contacts of the DC contactors KM4 and KM5 respectively.

[0098] 7. The DC voltage detection switches V1 and V2 respectively detect the DC voltages output by the main rectifiers Z1 and Z2.

[0099] 8. When the DC voltages output by the main rectifiers Z1 and Z2 are lower than the standard values, taking Z1 as an example, when the DC voltage detection switch V1 detects that the DC voltage output by the main rectifier Z1 is lower than the set voltage value, the relay of the DC voltage detection switch V1 closes to supply power to the indicator light L1,

[0100] the AC contactors KM1, KM3 and the DC contactor KM4 coils. The indicator light L1 is powered on to give an alarm. The normally closed contacts of the AC contactor KM1 and the DC contactor KM4 open to cut the main rectifier Z1 out of the circuit. The normally open contact of the AC contactor KM3 closes to provide 220VAC for the standby rectifier Z3. The normally open contact of the DC contactor KM4 closes to conduct the DC power rectified by the standby rectifier Z3 to the electromagnetic brake 1.

[0101] It should be noted that in the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0102] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0103] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram can be realized by computer program instructions, and the combination of the processes and / or blocks in the flowchart and / or block diagram can also be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0104] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and the instruction device realizes the functions in the processFigure 1 one process or multiple processes and / or blocks Figure 1 the functions specified in one block or multiple blocks.

[0105] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one process or multiple processes and / or blocks Figure 1 one process or multiple processes and / or blocks Figure 1 the steps of the functions specified in one block or multiple blocks.

[0106] The embodiments of the present application also provide a computer program product, which includes computer software instructions. When the computer software instructions run on a processing device, the processing device is enabled to execute the process of the control method of the rectifier circuit device.

[0107] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or a wireless manner (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be stored by a computer or a data storage device such as a server or a data center that includes one or more integrated available media. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), etc.

[0108] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0109] In several embodiments provided by the present application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms.

[0110] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0111] In addition, in each embodiment of the present application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0112] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in each embodiment of the present application. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs, and other various media that can store program codes.

[0113] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present application.

[0114] Although the preferred embodiments of this specification have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once they learn of the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of this specification.

[0115] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalent technologies, this specification is also intended to include these modifications and variations.

Claims

1. A rectifier circuit device for an electromagnetic power-off brake, characterized in that, The rectifier circuit device includes: External components; An AC circuit component disposed in the external components for converting alternating current into direct current; A DC circuit component disposed in the external components for adjusting the voltage of the direct current; A relay component disposed in the external components.

2. The rectifier circuit device according to claim 1, wherein The external components include: a housing, a bottom plate, a cable bushing, a terminal block, a push-button switch, and a fault indicator light.

3. The rectifier circuit device according to claim 2, wherein The cable bushing, the push-button switch, and the fault indicator light are respectively disposed on the housing; The terminal block is disposed on the bottom plate; The housing is connected to the bottom plate.

4. The rectifier circuit device according to claim 2, wherein The cable bushing includes an AC incoming line bushing and a DC line bushing.

5. The rectifier circuit device according to claim 2, wherein The terminal block includes a plurality of terminals.

6. The rectifier circuit device according to claim 1, wherein The AC circuit component includes an AC contactor group and a rectifier group.

7. The rectifier circuit device according to claim 4, wherein The AC contactor group includes a plurality of AC contactors; The rectifier group includes a plurality of rectifiers.

8. The rectifier circuit device according to claim 1, wherein The DC circuit component includes a DC voltage detection switch group and a DC contactor group.

9. The rectifier circuit device according to claim 1, wherein The DC voltage detection switch group includes a plurality of DC voltage detection switches; The DC contactor group includes a plurality of DC contactors; Wherein, the plurality of DC contactors correspond to the plurality of DC voltage detection switches one by one.

10. The rectifier circuit device according to any one of claims 1 to 9, wherein The relay component includes a plurality of intermediate relays.

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