Three-phase special-shaped interface assembly and matched assembly structure thereof

Abstract

The invention discloses a three-phase special-shaped interface assembly and a matched assembly structure thereof. The input end of the interface assembly is connected with AC380 for power supply, and the output end of the interface assembly is connected with a high-power power supply complete machine system through a complete machine switch; the interface assembly comprises an interface box seat, a three-phase input interface board and an interface box cover. The three-phase input interface board comprises a five-pole THT needle type socket, and the socket corresponds to a one-wire hole type plug; five poles of the THT pin-type socket are respectively connected with L1, L2, L3, N and PE lines, electromagnetic interference filter capacitors are respectively connected between the L1, L2, L3 and N lines and the PE line, and capacitors and resistors are respectively connected in parallel among the L1, L2 and L3 lines. The electromagnetic compatibility anti-interference compatibility is strong, the practicability is strong, the operation is simple, convenient and safe, the working hours are saved, the production efficiency is greatly improved, the manufacturing cost of the product is reduced, and the qualified rate of the overall quality of the product is also improved.

Description

Technical Field

[0001] The invention relates to a power supply device, in particular to a three-phase special-shaped interface component and a matching assembly structure thereof. Background Art

[0002] With the development of electronic science and technology, power electronic equipment is becoming increasingly miniaturized, and higher requirements are put forward for the internal and external layout, external structure and size characteristics, and installation and assembly methods of the system.

[0003] like Figure 1 As shown, it is a connection diagram of a high-power DC power supply system using a transfer terminal in the prior art.

[0004] The requirements of high-power DC power supply products are: high power and high precision, automatic range output, flexible combination of different series of power models, high-quality electrical performance, high stability, high ripple suppression ratio, low noise under dynamic load, reliable over-current, over-voltage, over-heat protection, beautiful overall effect, and low development cost. The three-phase power supply input is hard-connected through a 5P fence terminal of the whole machine panel, and then the input wire is used to soft-connect the whole machine switch. The fluctuation of the power supply system has not been processed in any way, which directly affects the parameters of the power supply system.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a three-phase heterogeneous interface component and a matching assembly structure thereof to solve the above-mentioned technical problems existing in the prior art.

[0007] The objective of the present invention is achieved through the following technical solutions:

[0008] The three-phase heterogeneous interface component and its matching assembly structure of the present invention, the input end of the interface component is connected to the AC380 power supply, and the output end is connected to the high-power power supply system through the whole machine switch;

[0009] The interface assembly includes an interface box seat, a three-phase input interface board, and an interface box cover;

[0010] The three-phase input interface board includes a 5-pole THT pin-type socket, which corresponds to a 1-wire female plug;

[0011] The five poles of the THT pin socket are connected to L1, L2, L3, N, and PE wires respectively. Electromagnetic interference filtering capacitors are connected between the L1, L2, L3, and N wires and the PE wire respectively. Capacitors and resistors are connected in parallel between the L1, L2, and L3 wires respectively.

[0012] Compared with the prior art, the three-phase special-shaped interface components and their matching assembly structure provided by the present invention have a compact physical space structure density of the three-phase power supply input power supply of the high-power DC power supply. According to the circuit design requirements, the interface layout and structural process scheme design are reasonably carried out to ensure that the performance parameters of the product are effectively improved and the overall aesthetic effect is achieved. The innovative assembly process method of cleverly matching the special-shaped three-phase interface components provides the system with an efficient, stable and reliable power supply module unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a connection diagram of a high-power DC power supply system using a transfer terminal in the prior art.

[0014] Figure 2 A connection diagram of a high-power DC power supply system using a three-phase heterogeneous interface component provided in an embodiment of the present invention.

[0015] Figure 3 This is an overall 3D rendering of the three-phase input interface component of an embodiment of the present invention.

[0016] Figure 4 The diagram is a circuit diagram of a three-phase input interface assembly according to an embodiment of the present invention.

[0017] Figure 5 Schematic diagram of the circuit layout of the three-phase input interface component according to an embodiment of the present invention.

[0018] Figure 6a , Figure 6b They are respectively the front view and side view schematic diagrams of the main dimensions of the interface box seat according to an embodiment of the present invention.

[0019] Figure 7a , Figure 7b , Figure 7c They are respectively schematic diagrams of the main dimensions of the interface box cover of an embodiment of the present invention, in front view, top view and side view. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, which does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0021] First, the terms that may be used in this article are explained as follows:

[0022] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0023] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0024] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than those explicitly listed, except for conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in that clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0025] Unless otherwise specified or 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0026] The contents not described in detail in the examples of the present invention belong to the prior art known to professionals in the field. If no specific conditions are specified in the examples of the present invention, the conditions are carried out according to the conventional conditions in the field or the conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used in the examples of the present invention, they are all conventional products that can be purchased commercially.

[0027] The three-phase heterogeneous interface component and its matching assembly structure of the present invention, the input end of the interface component is connected to the AC380 power supply, and the output end is connected to the high-power power supply system through the whole machine switch;

[0028] The interface assembly includes an interface box seat, a three-phase input interface board, and an interface box cover;

[0029] The three-phase input interface board includes a 5-pole THT pin-type socket, which corresponds to a 1-wire female plug;

[0030] The five poles of the THT pin socket are connected to L1, L2, L3, N, and PE wires respectively. Electromagnetic interference filtering capacitors are connected between the L1, L2, L3, and N wires and the PE wire respectively. Capacitors and resistors are connected in parallel between the L1, L2, and L3 wires respectively.

[0031] The top and left and right sides of the interface box cover are reinforced and uniformly assembled with 8 M3*6 cross three-combination screws, and assembled together with the three-phase input interface board and the interface box seat.

[0032] The 5-pole THT pin socket uses 1.2x 1.2mm silver-plated solder pins with a spacing of 10.16mm and a locking card on the side; the matching 1-wire female plug connects to 16mm 2 wire.

[0033] The interface box seat is lower on the right and higher on the left, with shielding on the top and bottom, hollowed out in the middle of the left and right sides, and reserved installation positioning holes on the edges. The installation positioning holes use 4-CLS-M3-1 pressure rivet nuts.

[0034] The interface box cover adopts a multi-bending sheet structure, and a 5-pole THT pin-type socket is arranged at the hollow part of the panel.

[0035] In summary, the three-phase heterogeneous interface assembly and its matching assembly structure of the embodiment of the present invention propose a new process technology for three-phase power supply input fluctuations, and propose a structure and method for arranging the power supply rear panel using a three-phase input interface assembly in a limited and narrow rear panel space. Abandoning the simple transfer terminal connection mode, ensuring high-quality current and voltage stable input, taking into account the reliable protection of safety overvoltage, overcurrent, and overheating, while meeting the requirements of easy installation and operation, overall beauty, and being suitable for mass production, low-cost control, and convenient after-sales disassembly and maintenance.

[0036] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the embodiments of the present invention are described in detail with specific embodiments below.

[0037] Example 1

[0038] like Figure 2 As shown, an innovative structure and method for reasonably matching and assembling the components of a three-phase input interface assembly is applicable to the limited rear panel input space layout.

[0039] like Figure 3As shown, the leading direction of this technology is: reasonable use of limited space layout, perfect matching between components, simple assembly operation, and easy processing. It can be seen from the technical solution provided by the present invention that through the reasonable matching and combination of the three components of the interface box seat, the three-phase input interface board, and the interface box cover, the existing layout space is fully utilized to meet the performance requirements and technical conditions of the product, electrical protection, simple assembly process, firm and reliable installation, neat and beautiful structure, which can not only improve the product performance quality, but also improve the power capacity safety; at the same time, the product debugging process is simplified, saving a certain amount of wire connection time, greatly reducing the material damage rate, and improving the product warehousing qualification rate.

[0040] In a specific embodiment:

[0041] like Figure 4 , Figure 5 As shown, a 5-pole THT pin socket and a 1-wire hole plug are used to replace the original simple 5P fence terminal, avoiding the single-point connection of 5 wires, solving the problem of easily confused wiring harnesses, and reducing the source of danger in operating behavior identification. The new connector has a locking card on the side to prevent wrong insertion, which meets the electrical performance requirements and human-machine operation design and simplifies the debugging and wiring process.

[0042] Use a three-phase input terminal board and capacitors as electromagnetic interference filters to effectively suppress electromagnetic interference and provide a stable power supply shielded power supply for the entire system.

[0043] Each component should be universal, consistent and interchangeable as much as possible, and have error-proofing measures. Each component should meet the working environment and other conditions and equipment requirements, ensure that the electrical performance parameters of the product are not reduced, and meet safety and environmental protection requirements.

[0044] The three-phase input interface board assembly is reasonably and firmly assembled on the rear panel of the whole machine, and is fastened with universal combination screws. The components of the assembly effectively utilize the limited space, the components are tightly connected, the assembly operation is simple, and the process is reasonable.

[0045] The surface treatment of the structural parts and shells should have anti-corrosion and beautification effects, and have the ability to extend service life and maintain excellent mechanical properties. The appearance of each component should be good, without burrs, rust, cracks and mechanical damage, and the overall appearance should be beautiful and the markings should be clear.

[0046] The implementation of the new plan follows the three design principles of "universalization, serialization, and interchangeability", while meeting the "interface and interchangeability requirements". It uses the least time, most economical investment, and most mature technology to implement product interface standards and requirements and develop a new modification process method with good applicability.

[0047] Specific plan:

[0048] In consideration of the compact requirements of limited space and the convenience of assembly, the appearance of the three-phase input interface board assembly adopts a special-shaped matching structure, and the interface board uses a pin-type socket box and a hole-type plug to facilitate wiring and removal. The top and left and right sides of the interface box cover are reinforced, and 8 M3*6 cross three-combination screws are used for assembly, which can avoid production and assembly errors, save labor hours, and have strong operability, greatly improving production efficiency, and meeting the convenience of assembly and later maintenance, while also improving the overall quality of the product warehousing qualification rate.

[0049] like Figure 4 As shown, 3 X safety capacitors and 3 resistors are connected in parallel between the phase lines to effectively suppress differential mode interference and discharge charge. The advantage of safety capacitors is that after failure, they will not cause clicking, nor endanger personal safety, and can withstand impact voltage. Y capacitors are connected in parallel between the live wire and the ground and between the neutral wire and the ground wire to effectively suppress common mode interference, play a good isolation effect, and avoid arcing when high voltage is turned on. The selection of capacitor and resistor specification parameters is safety certified and meets safety standards. Adding a three-phase input interface board to the three-phase power supply input interface can improve the performance of the power supply circuit, achieve filtering, phase adjustment, energy storage and voltage distribution, thereby providing circuit stability and reliability.

[0050] like Figure 5 As shown, the three-phase input interface board is mainly used to filter the three-phase 380V electricity.

[0051] The three-phase input power is connected with a tall light gray THT pin-type 5-pole socket, 1.2x 1.2mm silver-plated solder pins, 10.16mm spacing, with a locking card on the side, with anti-misinsertion protection, and a 1-wire female plug matching the socket, which can connect 16mm 2 wire.

[0052] The three-phase wire socket of the whole machine adopts 2 sets of K12-00A(H)\6.3*0.8 reliable and firm spring terminals. The metal contact area meets the current. The pin pitch is 5mm. Because the terminal height is lower than the safety X capacitor and the bending radius of the wire harness is redundant, the spring terminal is located on the right side of the input 5 terminals. The middle gap on the right side of the three-phase input interface board is used for input line routing.

[0053] The specifications of the X safety capacitor are 0.68uF\530Vac\4.0×24.5×31.5; the specifications of the R gold film resistor are 1MΩ\11.5XΦ4.5mm\1%\1W; the Y capacitor is 470pF\250Vac\spacing: 7.6mm.

[0054] It is assembled on the base of the interface box through the M3 hole fixing screw hole and then grounded. The bottom layer is the grounding surface, which can effectively reduce electromagnetic interference.

[0055] The circuit board adopts FR-4 layer circuit board, and the wiring is reasonable in accordance with the principle of "simple connection, safe current carrying, and electromagnetic interference resistance".

[0056] like Figure 6a , Figure 6b As shown, according to the limited space, the interface box seat assembly.

[0057] The interface box is lower on the right and higher on the left, with shielding above and below. For easy installation and operation, the left and right sides are hollowed out in the middle, and installation positioning holes are reserved on the edges. The installation positioning holes use 4-CLS-M3-1 pressure rivet nuts. Symmetrical and universal use takes into account error-proofing measures.

[0058] The material is SPCC cold-pressed steel plate with good plasticity, the thickness is 1mm, the surface is nickel-plated, and the surface has a protective layer, which has corrosion resistance and high-grade metal aesthetics. The length is 95mm±0.2mm, the width is 71mm, the height is 52mm±0.1mm, and other tolerances are implemented according to GB / T1184-k. The shape and opening form meet the actual space requirements, the bending radius is R1, and the bending angle must be accurate.

[0059] The appearance should be blunted with sharp corners, deburred, free of scratches, bubbles, etc. Before electroplating, it should be degreased and cleaned without oil stains; after electroplating, there should be no visible water marks and the color should be uniform.

[0060] like Figure 7a , Figure 7b , Figure 7c As shown, according to the limited space, the interface box cover.

[0061] The interface box cover adopts a multi-bending sheet structure. The hollow part of the panel is a THT pin-type 5-pole socket with black silk screen printing. The installation positioning hole adopts a φ3.5 through hole for M3 screw assembly. The special-shaped method takes into account the error-proofing and fool-proofing measures

[0062] Made of SPCC cold-pressed steel sheet with good plasticity, 1mm thick, nickel-plated surface. Length 95.7mm±0.2mm, width 71mm, height 52.5mm±0.1mm, linear dimension tolerance GB / T1804-m, shape tolerance GB / T1184-k. The shape and opening form meet the actual space requirements, bending radius R1, bending angle must be accurate.

[0063] The appearance should be blunted with sharp corners, deburred, free of scratches, bubbles, etc. Before electroplating, it should be degreased and cleaned without oil stains; after electroplating, there should be no visible water marks and the color should be uniform.

[0064] In summary, the three-phase interface component has good and reliable electrical performance, and puts forward new process requirements for the three-phase power supply input fluctuation: abandon the simple transfer terminal connection mode, ensure high-quality current and voltage stable input, take into account the reliable protection of safe overvoltage, overcurrent, and overheating, and meet the requirements of easy installation and operation, overall beauty, and suitable for mass production, low-cost control, and convenient after-sales disassembly and maintenance. A new process method for the layout of the power supply rear panel using a three-phase input interface component is proposed in a limited and narrow rear panel space.

[0065] It meets the power supply space of the whole power supply system of the equipment, has strong electromagnetic compatibility and anti-interference compatibility, is highly practical, is simple, convenient and safe to operate, saves working hours, greatly improves production efficiency, reduces product manufacturing costs, and improves the overall quality pass rate of products. It has now been referenced and promoted in other products.

[0066] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A three-phase heterogeneous interface component and its matching assembly structure, characterized in that: The input end of the interface component is connected to the AC380 power supply, and the output end is connected to the high-power power supply system through the whole machine switch; The interface assembly includes an interface box seat, a three-phase input interface board, and an interface box cover; The three-phase input interface board includes a 5-pole THT pin-type socket, which corresponds to a 1-wire female plug; The five poles of the THT pin socket are connected to L1, L2, L3, N, and PE wires respectively. Electromagnetic interference filtering capacitors are connected between the L1, L2, L3, and N wires and the PE wire respectively. Capacitors and resistors are connected in parallel between the L1, L2, and L3 wires respectively.

2. The three-phase heterogeneous interface assembly and its matching assembly structure according to claim 1, characterized in that: The top and left and right sides of the interface box cover are reinforced and uniformly assembled with 8 M3*6 cross three-combination screws, and assembled together with the three-phase input interface board and the interface box seat.

3. The three-phase heterogeneous interface assembly and its matching assembly structure according to claim 2, characterized in that: The 5-pole THT pin socket uses 1.2x 1.2mm silver-plated solder pins with a spacing of 10.16mm and a locking card on the side; the matching 1-wire female plug connects to 16mm 2 wire.

4. The three-phase heterogeneous interface assembly and its matching assembly structure according to claim 3, characterized in that: The interface box seat is lower on the right and higher on the left, with shielding on the top and bottom, hollowed out in the middle of the left and right sides, and reserved installation positioning holes on the edges. The installation positioning holes use 4-CLS-M3-1 pressure rivet nuts.

5. The three-phase heterogeneous interface assembly and its matching assembly structure according to claim 4, characterized in that: The interface box cover adopts a multi-bending sheet structure, and a 5-pole THT pin-type socket is arranged at the hollow part of the panel.

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