Through-type terminal structure for power electronic equipment and filter capacitor module

Abstract

The utility model relates to an electronic component, and provides a through-type terminal structure for power electronic equipment and a filter capacitor module in order to solve the problems that an existing filter capacitor installation structure is not high in integration level, not neat in appearance and backward in overall process. The utility model provides a through-type terminal structure for power electronic equipment. The through-type terminal structure comprises a terminal insulating plate and four groups of through-type terminals, the terminal insulating plate is provided with four strip-shaped mounting holes corresponding to the positions of the four groups of through-type terminals and a plurality of U-shaped piece mounting holes formed in one sides of the four strip-shaped mounting holes respectively. The utility model provides a filter capacitor module for power electronic equipment, which comprises an L-shaped mounting plate, and the L-shaped mounting plate comprises a first mounting plate and a second mounting plate which are perpendicular to each other. The filter capacitor assembly is arranged on the second mounting plate; and the penetrating type terminal structure is arranged on the first mounting plate, is matched with the filter capacitor assembly and is used for the power electronic equipment.

Description

Technical Field

[0001] The utility model relates to an electronic component, in particular to a through-type terminal structure and a filter capacitor module used for power electronic equipment. Background Art

[0002] With the development of power electronics technology, the structural integration of functional devices inside electronic equipment is getting higher and higher, and the modular structure of products has become a development trend. In power electronic equipment, the AC power supply is electrically connected to multiple filter capacitors on the output main circuit to suppress the output harmonics of the equipment. In the structural design of the prior art, the output filter capacitors are usually installed uniformly on the mounting board, and cables are used to electrically connect to the main circuit, or cables are connected at the front and rear ends of the filter capacitor installation assembly. Such filter capacitor modules have the problems of low integration, untidy appearance, and backward overall process. Utility Model Content

[0003] The utility model aims to solve the problems of low integration, untidy appearance and backward overall process in the existing filter capacitor installation structure, and to provide a through-type terminal structure and a filter capacitor module for power electronic equipment.

[0004] To achieve the above purpose, the technical solution provided by the utility model is:

[0005] A through-type terminal structure for power electronic equipment, which is special in that:

[0006] It comprises a terminal insulating plate and four groups of through-type terminals; the terminal insulating plate is provided with four strip-shaped mounting holes corresponding to the positions of the four groups of through-type terminals and a plurality of U-shaped mounting holes respectively arranged on one side of the four strip-shaped mounting holes; each group of the through-type terminal assembly comprises a first U-shaped member and a second U-shaped member which cooperate with each other and are located on both sides of the terminal insulating plate, a connecting member for connecting the two U-shaped members, and an L-shaped terminal conductive strip; the connecting member sequentially passes through one end of the first U-shaped member, the corresponding U-shaped member mounting hole and is connected to one end of the second U-shaped member, so as to fix the first U-shaped member and the second U-shaped member on both sides of the terminal insulating plate respectively; the L-shaped terminal conductive strip is arranged on the outer side of the first U-shaped member, one end of the L-shaped terminal conductive strip is tightly attached to the other end of the first U-shaped member, the other end of the L-shaped terminal conductive strip is fixedly connected to the bottom of the first U-shaped member, the end of the other end of the L-shaped terminal conductive strip passes through the corresponding strip-shaped mounting hole and is fixedly connected to the bottom of the second U-shaped member, and the end of the other end of the L-shaped terminal conductive strip extends out of the bottom of the second U-shaped member; the two ends of the L-shaped terminal conductive strip are respectively used for electrical connection with external equipment.

[0007] Furthermore, the other end of the first U-shaped member and the other end of the second U-shaped member are respectively provided with a first connection hole; the position corresponding to the first connection hole at one end of the L-shaped terminal conductive strip and the other end of the L-shaped terminal conductive strip are respectively provided with a second connection hole. The strip-shaped mounting hole located at the side is at a different height from the other three strip-shaped mounting holes, in order to distinguish the N pole from the A, B, and C poles.

[0008] At the same time, the utility model also provides a filter capacitor module for power electronic equipment, which is special in that:

[0009] It includes an L-shaped mounting plate, wherein the L-shaped mounting plate includes a first mounting plate and a second mounting plate which are perpendicular to each other; it also includes a filter capacitor assembly arranged on the second mounting plate, and the above-mentioned through-type terminal structure for power electronic equipment arranged on the first mounting plate and matched with the filter capacitor assembly; the terminal insulating plate is arranged on the inner side of the first mounting plate, and the second U-shaped member is located on the outer side of the first mounting plate; the other ends of the L-shaped terminal conductive strips of the four groups of through-type terminals are respectively connected to the A1 pole, the B1 pole, the C1 pole and the N1 pole of the external power supply; the filter capacitor assembly includes a filter capacitor mounting plate arranged on the second mounting plate, three groups of filter capacitors arranged on the filter capacitor mounting plate, an N-pole conductive plate arranged on the three groups of filter capacitors, and a laminated insulating plate arranged on the N-pole conductive plate; the front and rear sides of the N-pole conductive plate are respectively provided with a second N-pole front end transfer conductive strip and an N-pole rear end transfer conductive strip; the filter capacitor mounting plate is an L-shaped plate, The vertical part of the L-shaped plate is located at the front end, and a first N-pole front end transfer conductive strip is arranged on one side of the vertical part, and the first N-pole front end transfer conductive strip is connected to the second N-pole front end transfer conductive strip; three electrode conductive strips are arranged on the laminated insulating plate, which are respectively electrically connected to the first electrodes of the three groups of filter capacitors; the second electrodes of the three groups of filter capacitors are respectively connected to the N-pole conductive plate; the vertical part of the L-shaped plate of the filter capacitor mounting plate is also provided with four insulators corresponding to the A2 pole, B2 pole, C2 pole and N2 pole of the filter output, respectively, and the first N-pole front end transfer conductive strip is connected to the insulator corresponding to the N2 pole; the N-pole rear end transfer conductive strip is connected to one end of the L-shaped terminal conductive strip connected to the N1 pole; one end of the three electrode conductive strips is respectively connected to one end of the three L-shaped terminal conductive strips connected to the A1 pole, B1 pole and C1 pole at the corresponding position, and the other end is respectively connected to the insulator corresponding to the A2 pole, B2 pole and C2 pole, and is used to connect external equipment.

[0010] Furthermore, the N-pole conductive plate is provided with three groups of electrode avoidance holes for the first electrode of the filter capacitor to pass through, and three groups of connection holes for connecting the second electrode of the filter capacitor.

[0011] Furthermore, the laminated insulating board is provided with three groups of first electrode avoidance holes for the first electrode of the filter capacitor to pass through, and three groups of second electrode avoidance holes for the filter capacitor; three cylindrical platforms are provided under each electrode conductive strip for contacting the terminal platform of the filter capacitor.

[0012] Furthermore, each group of filter capacitors includes three capacitors; the nine capacitors of the three groups of filter capacitors are arranged in a 3×3 matrix. In actual application scenarios, the number of capacitors can be increased or decreased according to actual needs.

[0013] Furthermore, the three electrode conductive strips are connected to the three first U-shaped members at corresponding positions via a first connecting member; and the filter capacitor mounting plate is connected to the upper surface of the second mounting plate via a second connecting member.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The through-type terminal structure and filter capacitor module for power electronic equipment provided by the utility model realize modular structural integration of the filter capacitor module and the through-type terminal assembly, respectively, and have the advantages of low processing cost and easy installation, and high reliability, and can avoid damage to the filter capacitor module and its through-type terminal due to stress;

[0016] 2. The utility model provides a through-type terminal structure and a filter capacitor module for power electronic equipment. The filter capacitor module can be repaired on one side, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A circuit diagram of an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of disassembly and assembly of a capacitor module in an embodiment of the utility model;

[0020] Figure 4 This is a structural schematic diagram of the through-type terminal structure in the embodiment of the utility model installed on the filter capacitor mounting plate;

[0021] Figure 5 This is a schematic diagram of the rear structure in which the through-type terminal structure is installed on the filter capacitor mounting plate in the embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the through-type terminal structure in the embodiment of the utility model;

[0023] Figure 7 The structure of the filter capacitor assembly in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0024] Figure 8 The structure of the filter capacitor assembly in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0025] Fig. 9 An exploded view of a filter capacitor assembly in an embodiment of the utility model;

[0026] Description of reference numerals:

[0027] 1-L-shaped mounting plate, 2-through-type terminal structure, 3-filter capacitor assembly, 4-first connecting piece, 5-second connecting piece, 6-terminal insulating plate, 7-L-shaped terminal conductive strip, 81-first U-shaped piece, 82-second U-shaped piece, 9-filter capacitor mounting plate, 10-capacitor, 11-insulator, 12-first N-pole front end transfer conductive strip, 13-N-pole conductive plate, 14-second N-pole front end transfer conductive strip, 15-N-pole rear end transfer conductive strip, 16-laminated insulating plate, 17-electrode conductive strip, 18-annular column base. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] The filter capacitor module is usually installed near the output end of the main circuit of the AC power supply. When the filter capacitor is in use, the electrodes of the capacitor are preferably kept close to the main circuit bus, which is beneficial to reduce the device contact resistance and circuit interference in terms of electrical characteristics. At the front end of the circuit of the filter capacitor module, magnetic devices such as transformers are usually connected to the circuit. During the installation operation of the equipment, if a cable is used to directly connect the magnetic device to the conductor electrode of the filter capacitor module, the filter capacitor assembly is prone to electrode deformation due to the heavy cable and high stress, and the capacitor electrodes are also prone to damage due to stress. The present embodiment provides a through-type terminal structure and a filter capacitor module for power electronic equipment.

[0030] The through-type terminal structure for power electronic equipment provided in this embodiment is shown in FIG. Figures 2 to 6, including a terminal insulation plate 6 and four groups of through-type terminals; the terminal insulation plate 6 is provided with four strip-shaped mounting holes corresponding to the positions of the four groups of through-type terminals and a plurality of U-shaped mounting holes respectively arranged on one side of the four strip-shaped mounting holes; each group of through-type terminals includes a first U-shaped member 81 and a second U-shaped member 82 which cooperate with each other and are located on both sides of the terminal insulation plate 6, a connecting member for connecting the two U-shaped members, and an L-shaped terminal conductive strip 7; the connecting member sequentially passes through one end of the first U-shaped member 81, the corresponding U-shaped member mounting hole and is connected to one end of the second U-shaped member 82, so as to connect the first U-shaped member 8 1. The second U-shaped member 82 is respectively fixed on both sides of the terminal insulating plate 6; the L-shaped terminal conductive strip 7 is arranged on the outer side of the first U-shaped member 81, one end of the L-shaped terminal conductive strip 7 is tightly attached to the other end of the first U-shaped member 81, the other end of the L-shaped terminal conductive strip 7 is fixedly connected to the bottom of the first U-shaped member 81, the end of the other end of the L-shaped terminal conductive strip 7 passes through the corresponding strip-shaped mounting hole and is fixedly connected to the bottom of the second U-shaped member 82, and the end of the other end of the L-shaped terminal conductive strip 7 extends out of the bottom of the second U-shaped member 82; the two ends of the L-shaped terminal conductive strip 7 are respectively used for electrical connection with external equipment.

[0031] The other end portion of the first U-shaped member 81 and the other end portion of the second U-shaped member 82 are respectively provided with a first connecting hole; one end of the L-shaped terminal conductive strip 7 corresponding to the first wiring hole and the other end of the L-shaped terminal conductive strip 7 are respectively provided with a second connecting hole, and the first connecting hole and the second connecting hole are used to connect with the connecting end of the external device through fasteners; a strip-shaped mounting hole located on the side is at a different height from the other three strip-shaped mounting holes, and its purpose is to distinguish between the N pole and the A, B, and C poles.

[0032] At the same time, this embodiment also provides a filter capacitor module for power electronic equipment, see Figure 2 , Figure 3 , Figures 7 to 9, including an L-shaped mounting plate 1, wherein the L-shaped mounting plate 1 includes a first mounting plate 101 and a second mounting plate 102 that are perpendicular to each other; also including a filter capacitor assembly 3 arranged on the second mounting plate 102, and the above-mentioned through-type terminal structure 2 for power electronic equipment arranged on the first mounting plate 101 and matched with the filter capacitor assembly 3; the terminal insulating plate 6 is arranged on the inner side of the first mounting plate 101, and the second U-shaped member 82 is located on the outer side of the first mounting plate 101; the L-shaped terminal conductive strips 7 of the four groups of through-type terminals are respectively connected to the A1 pole, B1 pole, C1 pole and N1 pole of the external power supply; the filter capacitor assembly 3 includes a filter capacitor mounting plate 9 arranged on the second mounting plate 102, three groups of filter capacitors arranged on the filter capacitor mounting plate 9, an N-pole conductive plate 13 arranged on the three groups of filter capacitors, and a laminated insulating plate 16 arranged on the N-pole conductive plate 13; the front and rear sides of the N-pole conductive plate 13 are respectively provided with a second N-pole front end transfer conductive strip 14 and an N-pole rear end transfer conductive strip 15; the filter capacitor The capacitor mounting plate 9 is an L-shaped plate, the vertical part of the L-shaped plate is located at the front end, and a first N-pole front end transfer conductive strip 12 is arranged on one side of the vertical part, and the first N-pole front end transfer conductive strip 12 is connected to the second N-pole front end transfer conductive strip 14; three electrode conductive strips 17 electrically connected to the first electrodes of the three groups of filter capacitors are arranged on the laminated insulating plate 16; the second electrodes of the three groups of filter capacitors are connected to the N-pole conductive plate 13 respectively; the vertical part of the L-shaped plate of the filter capacitor mounting plate 9 is also provided with corresponding A2 The four insulators 11 of the A1 pole, B2 pole, C2 pole and N2 pole, the front end of the first N pole is connected to the insulator 11 corresponding to the N2 pole; the rear end of the N pole is connected to the L-shaped terminal conductive strip 7 connected to the N1 pole; one end of the three electrode conductive strips 17 are respectively connected to the three L-shaped terminal conductive strips 7 connected to the A1 pole, B1 pole and 1C pole at the corresponding positions, and the other end is respectively connected to the insulator 11 corresponding to the A2 pole, B2 pole and C2 pole, and is used to connect external equipment.

[0033] Among them, the topology diagram of the circuit of this embodiment can be seen in Figure 1 , wherein poles A1, B1, C1 and N1 serve as input ends of the filter capacitor module, poles A2, B2, C2 and N2 serve as output ends of the filter capacitor module, and both the input end and the output end of the filter capacitor module are connected to external devices.

[0034] To ensure the connection of each group of filter capacitors, the N-pole conductive plate 13 is provided with three groups of electrode avoidance holes for the first electrode of the filter capacitor to pass through, and three groups of connection holes for connecting with the second electrode of the filter capacitor. The laminated insulating plate 16 is provided with three groups of first electrode avoidance holes for the first electrode of the filter capacitor to pass through, and three groups of avoidance holes for avoiding the second electrode of the filter capacitor; three cylindrical platforms 18 are riveted below each electrode conductive strip 17 for contacting with the terminal platform of the filter capacitor.

[0035] In this embodiment, each filter capacitor group includes three capacitors 10; the nine capacitors 10 of the three filter capacitor groups are arranged in a 3×3 matrix. In actual application scenarios, the number of capacitors 10 can be increased or decreased according to actual needs, but the number must be an integer multiple of 3.

[0036] To facilitate assembly and disassembly, the three electrode conductive strips 17 are connected to the three U-shaped first parts 81 at corresponding positions through the first connecting member 5; the filter capacitor mounting plate 9 is connected to the upper surface of the second mounting plate 102 through the second connecting member 4.

[0037] This embodiment can effectively avoid stress damage to the filter capacitor module caused by cable installation, and at the same time greatly improves the convenience of assembly in terms of physical connection.

[0038] It should be noted that the above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should be included in the protection scope of the present invention.

Claims

1. A through-type terminal structure for power electronic equipment, characterized in that: It comprises a terminal insulation plate (6) and four sets of through-type terminals; The terminal insulating plate (6) is provided with four strip-shaped mounting holes corresponding to the positions of the four groups of through-type terminals respectively, and a plurality of U-shaped mounting holes respectively arranged on one side of the four strip-shaped mounting holes; Each group of the through-type terminals comprises a first U-shaped member (81) and a second U-shaped member (82) which are located on both sides of the terminal insulation plate (6) and cooperate with each other, a connecting member for connecting the two U-shaped members, and an L-shaped terminal conductive strip (7); the connecting member sequentially passes through one end of the first U-shaped member (81), the corresponding U-shaped member mounting hole and is connected to one end of the second U-shaped member (82), and is used to fix the first U-shaped member (81) and the second U-shaped member (82) on both sides of the terminal insulation plate (6) respectively; the L-shaped terminal conductive strip (7) is arranged on the outer side of the first U-shaped member (81), one end of the L-shaped terminal conductive strip (7) is tightly attached to the other end of the first U-shaped member (81), the other end of the L-shaped terminal conductive strip (7) is fixedly connected to the bottom of the first U-shaped member (81), the end of the other end of the L-shaped terminal conductive strip (7) passes through the corresponding strip mounting hole and is fixedly connected to the bottom of the second U-shaped member (82), and the end of the other end of the L-shaped terminal conductive strip (7) extends out of the bottom of the second U-shaped member (82); Both ends of the L-shaped terminal conductive strip (7) are respectively used for electrical connection with external equipment.

2. The through-type terminal structure for power electronic equipment according to claim 1, characterized in that: The other end of the first U-shaped member (81) and the other end of the second U-shaped member (82) are respectively provided with a first connection hole; one end of the L-shaped terminal conductive strip (7) corresponding to the first wiring hole and the other end of the L-shaped terminal conductive strip (7) are respectively provided with a second connection hole; A strip-shaped mounting hole located at the side is at a different height from the positions of the remaining three strip-shaped mounting holes.

3. A filter capacitor module for power electronic equipment, characterized in that: The invention comprises an L-shaped mounting plate (1), wherein the L-shaped mounting plate (1) comprises a first mounting plate (101) and a second mounting plate (102) which are perpendicular to each other; further comprising a filter capacitor assembly (3) arranged on the second mounting plate (102), and a through-type terminal structure (2) for power electronic equipment as claimed in claim 1 or 2, which is arranged on the first mounting plate (101) and cooperates with the filter capacitor assembly (3); the terminal insulating plate (6) is arranged on the inner side of the first mounting plate (101), and the second U-shaped member (82) is located on the outer side of the first mounting plate (101); the other ends of the L-shaped terminal conductive strips (7) of the four groups of through-type terminals are respectively connected to the A1 pole, the B1 pole, the C1 pole and the N1 pole of an external power supply; The filter capacitor assembly (3) comprises a filter capacitor mounting plate (9) arranged on a second mounting plate (102), three groups of filter capacitors arranged on the filter capacitor mounting plate (9), an N-pole conductive plate (13) arranged on the three groups of filter capacitors, and a laminated insulating plate (16) arranged on the N-pole conductive plate (13); The front and rear sides of the N-pole conductive plate (13) are respectively provided with a second N-pole front end transfer conductive strip (14) and an N-pole rear end transfer conductive strip (15); the filter capacitor mounting plate (9) is an L-shaped plate, the vertical portion of the L-shaped plate is located at the front end, and a first N-pole front end transfer conductive strip (12) is provided on one side of the vertical portion, and the first N-pole front end transfer conductive strip (12) is connected to the second N-pole front end transfer conductive strip (14); the laminated insulating plate (16) is provided with three electrode conductive strips (17) respectively electrically connected to the first electrodes of the three groups of filter capacitors; the second electrodes of the three groups of filter capacitors are respectively connected to the N-pole conductive plate (13); Four insulators (11) corresponding to the A2 pole, B2 pole, C2 pole and N2 pole of the filter output are also arranged on the vertical part of the L-shaped plate of the filter capacitor mounting plate (9); the front end transfer conductive strip (12) of the first N pole is connected to the insulator (11) corresponding to the N2 pole; the rear end transfer conductive strip (15) of the N pole is connected to one end of the L-shaped terminal conductive strip (7) connected to the N1 pole; One end of the three electrode conductive strips (17) is respectively connected to one end of three L-shaped terminal conductive strips (7) connected to the A1 pole, the B1 pole, and the C1 pole at corresponding positions, and the other end is respectively connected to the insulators (11) corresponding to the A2 pole, the B2 pole, and the C2 pole, and is used to connect external equipment.

4. The filter capacitor module for power electronic equipment according to claim 3, characterized in that: The N-pole conductive plate (13) is provided with three groups of electrode avoidance holes for the first electrode of the filter capacitor to pass through, and three groups of connection holes for connecting the second electrode of the filter capacitor; Three cylindrical platforms (18) are arranged below each electrode conductive strip (17) and are used to contact the terminal platform of the filter capacitor.

5. The filter capacitor module for power electronic equipment according to claim 3 or 4, characterized in that: The laminated insulating plate (16) is provided with three groups of first electrode avoidance holes for the first electrode of the filter capacitor to pass through, and three groups of second electrode avoidance holes for the filter capacitor.

6. The filter capacitor module for power electronic equipment according to claim 5, characterized in that: Each group of filter capacitors includes three capacitors (10); the nine capacitors (10) of the three groups of filter capacitors are arranged in a 3×3 matrix.

7. The filter capacitor module for power electronic equipment according to claim 6, characterized in that: The three electrode conductive strips (17) are connected to the three first U-shaped members (81) at corresponding positions via a first connecting member (5); and the filter capacitor mounting plate (9) is connected to the upper surface of the second mounting plate (102) via a second connecting member (4).

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