A conductive structure with automatic adjustment function

Abstract

The present invention discloses a conductive structure with automatic adjustment function, including an upper conductive part, an intermediate conductive structure and a lower conductive part, wherein the intermediate conductive structure is installed between the upper conductive part and the lower conductive part, the intermediate conductive structure includes a moving contact part, a stationary contact part and a shielding system, the moving contact part is located at the upper part of the intermediate conductive structure and is connected to the upper conductive part, the moving contact part is composed of a fixed part and a rotating part, the fixed part is composed of a conductor, a contact seat and a second screw, and the rotating part is composed of a clamping plate, a spring, a contact finger, a third screw, a clamping plate and an axle pin. The conductive structure of the present invention has an automatic adjustment function. Due to the rotatable design of the moving contact part, when there is eccentricity or cross misalignment between the upper and lower conductive parts, the automatic adjustment of the conductive contact part can be ensured, the needs of conductive performance are met, and the good state of each conductive contact point is ensured, and at the same time, it has the advantages of simple structure and reliable performance.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage electrical equipment, in particular to a conductive structure with an automatic adjustment function. Background Art

[0002] In high-voltage power transmission and transformation switchgear, especially combined electrical appliances, a good conductive structure needs to be provided within a short distance. However, due to processing and assembly problems, the upper and lower conductive parts are not concentric or cross-displaced. The conductive scheme of the common structure will lead to very poor conductive contact, increased resistance, loop heating, and even inability to assemble, which may eventually lead to product failure. Therefore, those skilled in the art provide a conductive structure with an automatic adjustment function to solve the problems raised in the above background technology. Summary of the invention

[0003] The object of the present invention is to provide a conductive structure with automatic adjustment function to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a conductive structure with automatic adjustment function, comprising an upper conductive part, an intermediate conductive structure and a lower conductive part, wherein the intermediate conductive structure is installed between the upper conductive part and the lower conductive part, and the intermediate conductive structure comprises a moving contact part, a stationary contact part and a shielding system;

[0005] The moving contact part is located at the upper part of the middle conductive structure and connected to the upper conductive part. The moving contact part is composed of a fixed part and a rotating part. The fixed part is composed of a conductor, a contact seat, and a second screw. The rotating part is composed of a clamping plate, a spring, a contact finger, a third screw, a clamping plate, and a shaft pin.

[0006] The lower part of the middle conductive structure is arranged as a stationary contact part, the stationary contact part comprises a stationary contact seat, and the stationary contact seat is connected with the lower conductive part, and a shielding system is arranged on the outer cover of the moving contact part.

[0007] Furthermore, the upper end of the conductor is connected to the upper conductive part, and a contact seat is provided in the middle of the lower end of the conductor, and the contact seat is connected to the conductor through a second screw.

[0008] Furthermore, the contact fingers are installed on the left and right sides of the contact seat, and a plurality of recessed holes are opened on the outer sides of the contact fingers, and springs are installed in the recessed holes. A card plate is provided on the outer side of the spring, and the contact fingers and the springs are installed in the card plate. Protrusions are provided on the outer sides of the upper and lower ends of the contact fingers, and the protrusions are stuck in the grooves of the card plate. One end of the spring presses against the inner wall of the card plate. Under the action of the spring, the two ends of the contact fingers contact with the card plate. The number of contact fingers is determined according to the current size of the product, and the contact fingers are assembled and installed in pairs, one on each side of the contact seat.

[0009] Furthermore, a circular hole is provided inside the contact seat, and an axle pin is installed in the circular hole of the contact seat. A clamping plate is installed at each end of the axle pin, and a circular hole identical to that on the contact seat is provided on the clamping plate. Four threaded holes are provided on both sides of the clamping plate, and a third screw is installed in the threaded hole. The clamping plate and the clamping plate are connected by the third screw, thereby forming a rotatable part of the moving contact part.

[0010] Furthermore, the shielding system is composed of a first screw and a shielding cover group, the shielding cover group includes two left and right shielding covers, and the tops of the two shielding covers are fixedly connected to the conductor by the first screw; the shielding system can shield the complex electric field structure of the moving contact part and improve the insulation performance of the product.

[0011] Furthermore, an arc contact surface is provided on one side of the contact finger distal spring, the middle portion of the arc contact surface is a concave surface, and the upper and lower sides of the arc contact surface are in contact with the contact seat and the static contact seat respectively.

[0012] Furthermore, one of the automatic adjustment functions of the conductive structure is: due to processing or assembly reasons, when the upper conductive part and the lower conductive part are misaligned, after assembly, the rotating part of the moving contact part swings to one side a small distance with the shaft pin as the rotation axis. Due to the arc contact surface design of the contact finger, under the action of the spring, both ends of the contact finger maintain a good conductive contact state with the contact seat and the static contact seat.

[0013] Furthermore, the second automatic adjustment function of the conductive structure is: due to processing or assembly reasons, when the upper conductive part and the lower conductive part are not concentric, after assembly, the rotating part of the moving contact part is in a normal state, and the offset of the static contact seat has no effect on the conductive contact, and the conductive contact state is always in a normal and good state.

[0014] Furthermore, the third automatic adjustment function of the conductive structure is: due to processing or assembly reasons, when the upper conductive part and the lower conductive part are neither concentric nor cross-misaligned, since each pair of contact fingers of the rotating part of the moving contact part is in a floating state, the pressure of each conductive contact point is provided by the corresponding single spring, and therefore each conductive contact point is always in a normal and good state.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The conductive structure of the present invention has an automatic adjustment function. Since the movable contact part is rotatable, when there is eccentricity or cross-dislocation between the upper and lower conductive parts, the conductive contact parts can be automatically adjusted to meet the needs of conductive performance and ensure that each conductive contact point is in a good state. At the same time, it has the advantages of simple structure and reliable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of a conductive structure with automatic adjustment function;

[0018] Figure 2 A conductive structure with automatic adjustment function Figure 1 Side view of

[0019] Figure 3 Schematic diagram of an automatic adjustment method for an intermediate conductive structure in a conductive structure with an automatic adjustment function Figure 1 ;

[0020] Figure 4 A conductive structure with automatic adjustment function Figure 3 Side view of

[0021] Figure 5 Schematic diagram of an automatic adjustment method for an intermediate conductive structure in a conductive structure with an automatic adjustment function Figure 2 ;

[0022] Figure 6 A conductive structure with automatic adjustment function Figure 5 Side view of

[0023] Figure 7 The present invention is a schematic diagram of the assembly of contact fingers and a card board in a conductive structure with an automatic adjustment function.

[0024] In the figure: 1-conductor; 2-contact seat; 3-first screw; 4-second screw; 5-shielding cover group; 6-clip plate; 7-spring; 8-contact finger; 9-third screw; 10-stationary contact seat; 11-clamp; 12-axle pin; 101-upper conductive part; 102-middle conductive structure; 103-lower conductive part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 7 In an embodiment of the present invention, a conductive structure with an automatic adjustment function includes an upper conductive portion 101, an intermediate conductive structure 102 and a lower conductive portion 103, wherein the intermediate conductive structure 102 is installed between the upper conductive portion 101 and the lower conductive portion 103, and the intermediate conductive structure 102 includes a moving contact portion, a stationary contact portion and a shielding system;

[0027] The moving contact part is located at the upper part of the middle conductive structure 102 and connected to the upper conductive part 101. The moving contact part is composed of a fixed part and a rotating part. The fixed part is composed of a conductor 1, a contact seat 2, and a second screw 4. The rotating part is composed of a clamping plate 6, a spring 7, a contact finger 8, a third screw 9, a clamping plate 11 and a shaft pin 12.

[0028] The lower part of the middle conductive structure 102 is provided as a stationary contact part, the stationary contact part includes a stationary contact seat 10, and the stationary contact seat 10 is connected to the lower conductive part 103, and a shielding system is provided on the outer cover of the moving contact part.

[0029] The upper end of the conductor 1 is connected to the upper conductive part 101 , and a contact seat 2 is provided in the middle of the lower end of the conductor 1 . The contact seat 2 is connected to the conductor 1 through a second screw 4 .

[0030] The contact fingers 8 are installed on the left and right sides of the contact base 2. A plurality of recessed holes are provided on the outer side of the contact fingers 8. Springs 7 are installed in the recessed holes. A card plate 6 is provided on the outer side of the spring 7. The contact fingers 8 and the spring 7 are both installed in the card plate 6. Protrusions are provided on the outer sides of the upper and lower ends of the contact fingers 8. The protrusions are stuck in the grooves of the card plate 6. One end of the spring 7 presses against the inner wall of the card plate 6. Under the action of the spring 7, both ends of the contact fingers 8 are in contact with the card plate 6. The number of the contact fingers 8 is determined according to the current size of the product. The contact fingers 8 are assembled and installed in pairs, one on each side of the contact base 2.

[0031] A circular hole is provided inside the contact base 2, and an axle pin 12 is installed in the circular hole of the contact base 2. A clamping plate 11 is installed at each end of the axle pin 12. The clamping plate 11 is provided with a circular hole identical to that on the contact base 2. Four threaded holes are provided on both sides of the clamping plate 11, and a third screw 9 is installed in the threaded hole. The clamping plate 11 is connected to the clamping plate 6 by the third screw 9, thereby forming a rotatable part of the moving contact part.

[0032] The shielding system is composed of a first screw 3 and a shielding cover group 5, wherein the shielding cover group 5 includes two left and right shielding covers, and the tops of the two shielding covers are fixedly connected to the conductor 1 by the first screw 3; the shielding system can shield the complex electric field structure of the moving contact part and improve the insulation performance of the product.

[0033] The contact finger 8 is provided with an arc contact surface on one side far from the spring 7 , the middle of the arc contact surface is a concave surface, and the upper and lower sides of the arc contact surface are in contact with the contact seat 2 and the stationary contact seat 10 respectively.

[0034] One of the automatic adjustment functions of the present invention is: due to processing or assembly reasons, when the upper conductive part 101 and the lower conductive part 103 are misaligned (such as Figure 3 and 4 As shown in the figure, the misalignment dimension is A. After assembly, the rotating part of the moving contact part swings to one side with a small distance with the shaft pin 12 as the rotation axis. Due to the arc contact surface design of the contact finger 8 (as shown in the figure), the moving contact part of the moving contact part swings to one side with a small distance with the shaft pin 12 as the rotation axis. Figure 7), under the action of the spring 7, both ends of the contact finger 8 maintain a good conductive contact state with the contact seat 2 and the static contact seat 10.

[0035] The second automatic adjustment function of the present invention is: due to processing or assembly reasons, when the upper conductive part 101 and the lower conductive part 103 are not concentric, (such as Figure 5 and 6 As shown in the figure, the offset angle is B. After assembly, the rotating part of the moving contact part is in a normal state, and the offset of the stationary contact seat 10 has no effect on the conductive contact, and the conductive contact state is always in a normal and good state.

[0036] The third automatic adjustment function of the present invention is: due to processing or assembly reasons, when the upper conductive part 101 and the lower conductive part 103 are neither concentric nor cross-misaligned, since each pair of contact fingers 8 of the rotating part of the moving contact part is in a floating state, the pressure of each conductive contact point is provided by the corresponding single spring 7, so each conductive contact point is always in a normal and good state.

[0037] The conductive structure of the present invention has an automatic adjustment function. Since the movable contact part is rotatable, when there is eccentricity or cross-dislocation between the upper and lower conductive parts, the conductive contact parts can be automatically adjusted to meet the needs of conductive performance and ensure that each conductive contact point is in a good state. At the same time, it has the advantages of simple structure and reliable performance.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A conductive structure with an automatic adjustment function, comprising an upper conductive part (101), an intermediate conductive structure (102) and a lower conductive part (103), characterized in that: The intermediate conductive structure (102) is installed between the upper conductive part (101) and the lower conductive part (103), and the intermediate conductive structure (102) comprises a moving contact part, a stationary contact part and a shielding system; The movable contact part is located at the upper part of the middle conductive structure (102) and is connected to the upper conductive part (101). The movable contact part is composed of a fixed part and a rotating part. The fixed part is composed of a conductor (1), a contact seat (2) and a second screw (4). The rotating part is composed of a clamping plate (6), a spring (7), a contact finger (8), a third screw (9), a clamping plate (11) and a shaft pin (12). The lower part of the intermediate conductive structure (102) is provided as a stationary contact part, the stationary contact part comprises a stationary contact seat (10), and the stationary contact seat (10) is connected to the lower conductive part (103), and the outer cover of the moving contact part is provided with a shielding system; The contact seat (2) has a circular hole formed inside, the shaft pin (12) is installed in the circular hole of the contact seat (2), a clamping plate (11) is installed at each end of the shaft pin (12), the clamping plate (11) has a circular hole identical to that on the contact seat (2), four threaded holes are formed on both sides of the clamping plate (11), a third screw (9) is installed in the threaded hole, and the clamping plate (11) is connected to the clamping plate (6) via the third screw (9); The contact finger (8) is mounted on the left and right sides of the contact seat (2); a plurality of recessed holes are provided on the outer side of the contact finger (8); springs (7) are installed in the recessed holes; a clamping plate (6) is provided on the outer side of the spring (7); the contact finger (8) and the spring (7) are both installed in the clamping plate (6); protrusions are provided on the outer sides of the upper and lower ends of the contact finger (8); the protrusions are clamped in the recesses of the clamping plate (6); A circular arc contact surface is provided on one side of the contact finger (8) far from the spring (7), the middle of the circular arc contact surface is a concave surface, and the upper and lower sides of the circular arc contact surface are in contact with the contact seat (2) and the static contact seat (10) respectively.

2. A conductive structure with automatic adjustment function according to claim 1, characterized in that: The upper end of the conductor (1) is connected to the upper conductive part (101), a contact seat (2) is provided in the middle of the lower end of the conductor (1), and the contact seat (2) is connected to the conductor (1) via a second screw (4).

3. The conductive structure with automatic adjustment function according to claim 1, characterized in that: The shielding system is composed of a first screw (3) and a shielding cover group (5), wherein the shielding cover group (5) comprises two left and right shielding covers, and the tops of the two shielding covers are fixedly connected to the conductor (1) by the first screw (3).

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