Intelligent low-voltage rectifier cabinet
By integrating the main circuit and control circuit components into the low-voltage rectifier cabinet, a reasonable layout and intelligent control of the components are achieved, solving the problems of complex structure and single function of existing low-voltage rectifier cabinets, and improving safety and convenience.
Patent Information
- Application Number
- CN202423264150.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing low-voltage rectifier cabinets cannot meet the requirements of intelligentization, as they have complex structures and limited functions.
An intelligent low-voltage rectifier cabinet was designed, integrating main circuit device groups and control circuit device groups. The devices are arranged from top to bottom from input to output, including main circuit devices such as pre-charge resistors, molded case circuit breakers, main contactors, and rectifier modules, as well as control circuit devices such as reactive power compensation LSVG, PLC logic control modules, intelligent terminals, and UPS uninterruptible power supplies, to achieve intelligent control and monitoring.
It improves the safety and convenience of low-voltage rectifier cabinets, realizes stable current output and intelligent control, supports remote monitoring and data acquisition, and enhances the intelligence level of the equipment.
Smart Images
Figure CN223785592U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to low voltage rectifier cabinet technical field, specifically related to an intelligent low voltage rectifier cabinet. BACKGROUND
[0002] Low voltage switch cabinet equipment as important component in power grid system, bears the important role of distributing electric power energy to each electric equipment, its main function is to realize the distribution and control of electric power, protects electric power system from overload and short circuit damage simultaneously. With the increasing progress and development of modern electric power system, the function is from traditional low voltage switch control to integrated reactive compensation, rectification and inversion and other multiple functions. However, the integration of intelligent function requires higher structure of low voltage switch cabinet, and the structure is more complex.
[0003] In the prior art, low voltage rectifier cabinet is mostly provided with only main loop device, which cannot meet the requirement of intelligence. UTILITY MODEL CONTENT
[0004] The application provides an intelligent low voltage rectifier cabinet to at least solve at least one technical problem in the related art.
[0005] According to one aspect of the embodiments of the application, an intelligent low voltage rectifier cabinet is provided, comprising: a cabinet body with a containing space, a main loop device group and a control loop device group; the main loop device group and the control loop device group are arranged in the containing space; wherein the main loop device group comprises a plurality of primary devices, which are arranged from top to bottom in the containing space from the input end to the output end.
[0006] As an optional implementation, the plurality of primary devices at least comprise: a pre-charge resistor, a molded case circuit breaker, a main contactor and a rectifier module.
[0007] As an optional implementation, the pre-charge resistor, the molded case circuit breaker, the main contactor and the rectifier module are connected in sequence and arranged from top to bottom in the containing space.
[0008] As an optional implementation, the primary device further comprises: a DC output copper bar and a filter capacitor connected with the rectifier module respectively, arranged below the rectifier module and located at the bottom end of the containing space.
[0009] As an optional implementation, the control loop device group at least comprises: a reactive compensation LSVG, a PLC logic control module, an intelligent terminal and a UPS uninterruptible power supply.
[0010] As an optional implementation, the intelligent terminal and the PLC logic control module are arranged on the side surface of the cabinet body.
[0011] As an optional implementation, the reactive compensation LSVG and the UPS uninterruptible power supply are arranged at the bottom end inside the cabinet body and are arranged side by side with the DC output copper bar and the filter capacitor.
[0012] As an optional implementation, the cabinet body is arranged as a square frame structure, including a cross beam and a stand connected with each other, and a base arranged at the bottom end and connected with the stand.
[0013] As an optional implementation, the cross beam includes a support cross beam arranged at the top of the frame and a reinforcing cross beam arranged between the support cross beam and the base; the main circuit device group and the control circuit device group are fixed with the reinforcing cross beam and / or the base.
[0014] As an optional implementation, the stand, the support cross beam and the reinforcing cross beam are connected through a pull rivet nut; a lifting ring mounting hole is arranged at the four corner positions of the support cross beam; a foot mounting hole is arranged at the four corner positions of the base.
[0015] In the embodiment of the present application, an intelligent low-voltage rectifier cabinet is provided, including a cabinet body with a containing space, a main circuit device group and a control circuit device group; the main circuit device group and the control circuit device group are arranged in the containing space; wherein the main circuit device group includes a plurality of primary devices, which are arranged from top to bottom in the containing space from the input end to the output end. The installation of the low-voltage main circuit device and the intelligent control circuit device group is integrated, the structure is compact, and the layout is reasonable. After the current is rectified, DC power is output to supply the DC load; the control circuit device group collects the functional parameters of the components in the cabinet, controls the running state of the components, realizes intelligent control, greatly improves the safety and convenience. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying the creative labor.
[0018] Figure 1 is a structural schematic diagram of an optional intelligent low-voltage rectifier cabinet provided according to the embodiment of the present application;
[0019] Figure 2is another optional structure schematic diagram of an intelligent low-voltage rectifier cabinet provided by the embodiment of the present application;
[0020] Reference signs
[0021] 1 cabinet body, 101 stand, 102 support beam, 103 reinforcing beam, 104 base; 2 pre-charging resistor; 3 molded case circuit breaker; 4 main contactor; 5 rectifier module; 6 DC output copper bar; 7 filter capacitor; 8 reactive power compensation LSVG; 9 UPS uninterruptible power supply; 10 PLC logic control module; 11 intelligent terminal. DETAILED DESCRIPTION
[0022] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.
[0023] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0024] As Figures 1-2 shown, to solve the above technical problems, the embodiment of the present application provides an intelligent low-voltage rectifier cabinet, comprising: a cabinet body 1 having a containing space, a main circuit device group and a control circuit device group; the main circuit device group and the control circuit device group are arranged in the containing space; wherein the main circuit device group comprises a plurality of primary devices, which are arranged from top to bottom in the containing space from input end to output end.
[0025] The installation of the low-voltage main circuit device and the intelligent control circuit device group is integrated, the structure is compact, and the layout is reasonable. The current is output as direct current after rectification, which supplies direct current load; the control circuit device group collects functional parameters of the cabinet components, controls the operation state of the components, realizes intelligent control, greatly improves the safety and convenience.
[0026] As an optional implementation, the plurality of primary devices at least includes: a pre-charge resistor 2, a molded case circuit breaker 3, a main contactor 4, and a rectifier module 5.
[0027] As an optional implementation, the pre-charge resistor 2, the molded case circuit breaker 3, the main contactor 4, and the rectifier module 5 are sequentially connected and arranged from top to bottom in the accommodation space.
[0028] As an optional implementation, the primary device further includes: a DC output copper bar 6 and a filter capacitor 7 connected with the rectifier module 5 respectively, arranged below the rectifier module 5 and located at the bottom end of the accommodation space.
[0029] The main circuit device group is arranged in the cabinet 1 in a structure from top to bottom from the input end to the output end, the uppermost layer is the pre-charge resistor 2, below the pre-charge resistor 2 is the molded case circuit breaker 3, which is used for circuit protection of the entire low-voltage cabinet equipment; below the molded case circuit breaker 3 is the main contactor 4, which is used for controlling the on-off of the main circuit; below the main contactor 4 is the rectifier module 5, which converts the input alternating current into direct current for supplying the DC load, and the rectifier module 5 is equipped with a radiator, a cooling fan and the like to prevent the damage of components due to overheating. The positive and negative poles of the rectifier module 5 output are connected with a large specification copper bar, and the DC load takes power from the copper bar. The output of the rectifier module 5 needs to be smooth DC, so a filter capacitor 7 is added in the rectifier module 5 circuit to filter the AC part in the output power supply, so that the output DC is more stable.
[0030] As an optional implementation, the control circuit device group at least includes: a reactive power compensation LSVG 8, a PLC logic control module 10, an intelligent terminal 11, and a UPS uninterruptible power supply 9.
[0031] As an optional implementation, as shown in Figure 2 , the intelligent terminal 11 and the PLC logic control module 10 are arranged on the side of the cabinet 1.
[0032] As an optional implementation, as shown in Figure 1 , the reactive power compensation LSVG 8 and the UPS uninterruptible power supply 9 are arranged at the bottom end inside the cabinet 1 and are arranged side by side with the DC output copper bar 6 and the filter capacitor 7.
[0033] The control loop device group can comprise reactive power compensation LSVG 8, PLC logic control module 10, intelligent terminal 11, UPS uninterruptible power supply 9, etc.; can also comprise intermediate relay, miniature circuit breaker, mutual inductor, temperature controller, electric meter, and the present application does not make further limitation. The control loop adopts more components, and contains most inductive components, so the system is compensated for reactive power by LSVG, and has the function of harmonic filtering, reducing the power consumption of the low-voltage cabinet system. The PLC logic control module 10 mainly controls the on-off of the components in the cabinet and data acquisition, judges the fault signal and adjusts the state through the instruction. The PLC transmits the collected and processed signals to the intelligent terminal 11 device, and the intelligent terminal 11 device transmits the signal data to the cloud server. The user can remotely monitor the equipment running state and equipment parameters through the terminal APP program. The equipment is configured with a UPS uninterruptible power supply 9 to prevent power failure and save data in time. The low-voltage rectifier cabinet integrates low-voltage output control, rectification, intelligent data monitoring and remote control functions, greatly improving the intelligent degree and use convenience.
[0034] The input side of the intelligent low-voltage rectifier cabinet is the low-voltage side output of the transformer. The current is connected to the main circuit through copper bars or cables, and after entering the rectifier module 5, the alternating current is converted into direct current output to realize the rectification function. At the same time, the PLC logic control module 10 issues instructions to control the on-off, realizing intelligent control; to realize remote monitoring, data acquisition control terminal devices are used to collect the parameters and running state data of the components in the intelligent low-voltage rectifier cabinet, and then the collected data is uploaded to the user end by the terminal device. The user can remotely check the running condition of the low-voltage cabinet system at any time and anywhere, and operate the control components to adjust the system operation. Intelligent remote monitoring greatly improves safety and convenience.
[0035] As an optional implementation manner, as shown in Figures 1-2 As an optional implementation manner, as shown in
[0036] As an optional implementation manner, the cross beam comprises a supporting cross beam 102 arranged at the top of the frame and a reinforcing cross beam 103 arranged between the supporting cross beam 102 and the base 104; the main loop device group and the control loop device group are fixed to the reinforcing cross beam 103 and / or the base 104.
[0037] As an optional implementation manner, the column 101, the supporting cross beam 102 and the reinforcing cross beam 103 are connected through a pull rivet nut; the supporting cross beam 102 is connected to form a lifting ring mounting hole at the four corner positions; the base 104 is provided with a foot mounting hole at the four corner positions.
[0038] Specifically, the cabinet body 1 can be arranged as an open frame structure, bearing the weight load of the entire set of devices, while facilitating equipment installation and maintenance. The upright column 101 can be made of a 3mm-thick cold-rolled square steel pipe, and the reinforcing cross beam 103 and the base 104 are made of 3mm-thick cold-rolled steel plates that are bent and processed. The connection and fixing mode between the cross beam, the base 104 and the upright column 101 is a pull-rivet nut connection, facilitating installation and processing. The top support cross beam 102 is provided with hoisting ring mounting holes at four corner positions, facilitating hoisting in the later stage. The base 104 is provided with anchor mounting holes at four corner positions, facilitating the later fixing and installation of the cabinet body 1. The cabinet body 1 is an open frame type, facilitating device installation.
[0039] The sequence numbers of the above embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.
[0040] The integrated units in the above embodiments, if realized in the form of software function units and sold or used as independent products, can be stored in the above computer-readable storage medium. Based on such understanding, the technical solutions of the present application, essentially or in other words, the parts that make contributions to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing one or more electronic devices (which can be personal computers, servers or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
[0041] In the above embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.
[0042] In the several embodiments provided by the present application, it should be understood that the disclosed client can be implemented in other ways. Of course, the above device embodiments are only schematic. The division of the units is only a logical function division. There can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between the units can be indirect couplings or communication connections through some interfaces, units or modules, and can be electrical or other forms.
[0043] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the scheme provided in the embodiments.
[0044] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.
[0045] In the above-described embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.
[0046] The above description is only the preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.
Claims
1. An intelligent low voltage rectifier cabinet, characterized in that, The utility model relates to a cabinet body with containing space, main circuit device group and control circuit device group, the main circuit device group and the control circuit device group are arranged in the containing space. The main circuit device group comprises a plurality of primary devices arranged from top to bottom in the containing space from input end to output end. The primary devices comprise precharge resistor, molded case circuit breaker, main contactor and rectifier module.
2. The intelligent low voltage rectifier cabinet of claim 1, wherein, The precharge resistor, molded case circuit breaker, main contactor and rectifier module are connected in sequence and arranged from top to bottom in the containing space.
3. The intelligent low voltage rectifier cabinet of claim 2, wherein, The primary devices further comprise DC output copper bar and filter capacitor connected with the rectifier module respectively, arranged below the rectifier module and at the bottom end of the containing space.
4. The intelligent low voltage rectifier cabinet of claim 2, wherein, The control circuit device group comprises at least reactive power compensation LSVG, PLC logic control module, intelligent terminal and UPS uninterruptible power supply.
5. The intelligent low voltage rectifier cabinet of claim 4, wherein, The intelligent terminal and PLC logic control module are arranged on the side of the cabinet body.
6. The intelligent low voltage rectifier cabinet of claim 5, wherein, The reactive power compensation LSVG and UPS uninterruptible power supply are arranged at the bottom end of the cabinet body and arranged side by side with the DC output copper bar and filter capacitor.
7. The intelligent low voltage rectifier cabinet of claim 5, wherein, The cabinet body is arranged as a square frame structure comprising connected cross beam and stand column, and base arranged at the bottom end and connected with the stand column.
8. The intelligent low voltage rectifier cabinet of claim 1, wherein, The cross beam comprises four support cross beams arranged at the top of the frame and a plurality of reinforcing cross beams arranged between the support cross beams and the base, and the main circuit device group and the control circuit device group are fixed with the reinforcing cross beams and / or the base.
9. The intelligent low voltage rectifier cabinet of claim 8, wherein, The stand column, support cross beam and reinforcing cross beam are connected through pull rivet nut, and the four corners formed by the connection of the support cross beam are provided with lifting ring mounting hole, and the four corners of the base are provided with anchor mounting hole.
10. The intelligent low voltage rectifier cabinet of claim 9, wherein,