CVT external adjusting terminal structure

Abstract

The utility model relates to a CVT external adjusting terminal structure. The electromagnetic unit comprises an electromagnetic unit box body, wherein an intermediate transformer, a compensation reactor and a coil adjusting plate are arranged in the electromagnetic unit box body; the adjusting terminal box is mounted on the outer side surface of the electromagnetic unit box body; the adjusting terminal plate is mounted in the adjusting terminal box; respective adjusting coils of the intermediate transformer and the compensation reactor are connected to the adjusting terminal board through pile heads of the coil adjusting board, and the forward and reverse ratio difference and the phase difference can be adjusted through the pile heads of the adjusting terminal board. According to the utility model, the adjusting terminal board is additionally arranged on the outer side surface of the electromagnetic unit box body, so that the existing operation mode in oil is changed, external operation can be directly carried out, the operation is simple, and daily maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment design and manufacturing, in particular to a CVT external regulating terminal structure. Background Art

[0002] The CVT (capacitive voltage transformer) electromagnetic unit is composed of an intermediate transformer, a compensating reactor and a damper. The intermediate transformer and the compensating reactor are designed with multiple adjustment coils for adjusting the ratio difference and the phase angle. The intermediate transformer and the compensating reactor adjustment coils are connected to a set of adjustment boards, which are installed above the compensating reactor inside the electromagnetic unit box. About 20 pile heads for adjusting the coils are designed on the adjustment board. By adjusting the forward and reverse connections between the pile heads, the adjustment requirements of the ratio difference and the phase angle can be met.

[0003] However, when adjusting the ratio difference and phase angle, the existing method requires removing the bolts, opening the CVT electromagnetic unit box cover, and adjusting in the electromagnetic unit box filled with insulating oil. Due to the space limitations of the internal structure of the product, the adjustment process is time-consuming and labor-intensive, and the operation is inconvenient. In addition, the bolts used to tighten the adjustment pile heads are prone to breakage or inadequate tightening during repeated disassembly and assembly, which poses a great hidden danger to the safety of product operation and is not conducive to the daily inspection and maintenance of the product. Summary of the invention

[0004] To this end, the utility model provides a CVT external adjustment terminal structure, which changes the existing operation method in oil by adding an adjustment terminal board on the outer side of the electromagnetic unit box body, and can be directly operated externally, which is simple to operate and convenient for daily maintenance.

[0005] In order to solve the above technical problems, the utility model provides a CVT external adjustment terminal structure, including:

[0006] An electromagnetic unit box, wherein an intermediate transformer, a compensating reactor and a coil adjustment plate are arranged in the electromagnetic unit box;

[0007] An adjustment terminal box is installed on the outer side of the electromagnetic unit box body;

[0008] An adjusting terminal board is installed in the adjusting terminal box;

[0009] The regulating coils of the intermediate transformer and the compensating reactor are connected to the regulating terminal board through the terminal heads of the coil regulating board, and the forward and reverse ratio difference and the phase difference can be adjusted through the terminal heads of the regulating terminal board.

[0010] In one embodiment of the utility model, a clearance notch is provided on the outer side of the electromagnetic unit box body for the head of the adjustment terminal board to extend into the interior of the electromagnetic unit box body.

[0011] In one embodiment of the utility model, a terminal board buffer ring is provided on the outer side of the adjusting terminal board, and the terminal board buffer ring is abutted against a terminal board pressure plate.

[0012] In one embodiment of the utility model, a terminal board flange is installed on the outer side of the electromagnetic unit box body, and the adjustment terminal board is installed on the outer side of the electromagnetic unit box body through the terminal board flange.

[0013] In one implementation of the utility model, a terminal board sealing ring is provided between the adjusting terminal board and the terminal board flange.

[0014] In one implementation of the utility model, the regulating terminal box is equipped with an openable and closable regulating box door panel.

[0015] In one implementation of the utility model, a door panel sealing ring is provided on the inner wall of the regulating box door panel.

[0016] In one implementation of the utility model, the regulating terminal board is an integrated epoxy-cast terminal board.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The utility model discloses a CVT external adjustment terminal structure, the design of which simplifies on-site operation. The external adjustment terminal changes the operation mode in oil and is directly operated externally. There is no need to rent a crane or to separate the terminal to destroy the original sealing performance. The sealing performance is maintained, thus ensuring the reliable operation of the CVT product.

[0019] The regulating coils of the intermediate transformer and the compensating inductor of the utility model are connected to the external regulating terminal board through the posts of the regulating board. The ratio difference and the phase difference are regulated in the positive and negative directions by adjusting the posts on the terminal board, which is convenient for on-site personnel to make quick and accurate adjustments. The external regulating terminals replace the traditional oil-based operation mode to achieve external regulation without separating the electromagnetic unit box, thereby maintaining its original sealing performance and reducing the physical burden on the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the CVT external adjustment terminal structure of the utility model.

[0022] Figure 2 It is a side structural schematic diagram of the CVT external adjustment terminal structure of the utility model.

[0023] Figure 3 It is a schematic diagram of the utility model when the regulating box door panel is opened.

[0024] Description of the Figures in the Specification:

[0025] 1. Electromagnetic unit box; 2. Intermediate transformer; 3. Compensating reactor; 4. Coil adjustment plate; 5. Adjustment terminal box; 6. Adjustment terminal board; 7. Terminal board buffer ring; 8. Terminal board pressure plate; 9. Terminal board flange; 10. Terminal board sealing ring; 11. Adjustment box door panel; 12. Door panel sealing ring; 13. Door panel lock. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0030] Reference Figures 1 to 3 As shown, a CVT external adjustment terminal structure of the utility model includes:

[0031] An electromagnetic unit box 1, wherein an intermediate transformer 2, a compensating reactor 3 and a coil adjustment plate 4 are arranged in the electromagnetic unit box 1;

[0032] An adjustment terminal box 5 is installed on the outer side of the electromagnetic unit box 1;

[0033] An adjusting terminal board 6 is installed in the adjusting terminal box 5;

[0034] The regulating coils of the intermediate transformer 2 and the compensating reactor 3 are connected to the regulating terminal board 6 through the terminal head of the coil regulating board 4, and the forward and reverse ratio difference and the phase difference can be adjusted through the terminal head of the regulating terminal board 6.

[0035] External adjustment is achieved by replacing the traditional oil-in-oil operation mode with an external adjustment terminal, without the need to separate the electromagnetic unit housing 1, thereby maintaining its original sealing performance and reducing the physical burden on the operator.

[0036] In one embodiment, a notch is provided on the outer side of the electromagnetic unit housing 1 for allowing the head of the regulating terminal board 6 to extend into the interior of the electromagnetic unit housing 1 .

[0037] In one embodiment, a terminal board buffer ring 7 is provided on the outer side of the adjusting terminal board 6 , and a terminal board pressing plate 8 is abutted against the terminal board buffer ring 7 .

[0038] A terminal board flange 9 is installed on the outer side of the electromagnetic unit housing 1 , and the regulating terminal board 6 is installed on the outer side of the electromagnetic unit housing 1 through the terminal board flange 9 .

[0039] A terminal board sealing ring 10 is provided between the regulating terminal board 6 and the terminal board flange 9 .

[0040] The adjustment terminal board 6 has a stable structure design, good sealing, and is reliable and safe, thereby preventing the external environment from affecting the electromagnetic unit.

[0041] In one embodiment, the regulating terminal box 5 is provided with an openable and closable regulating box door panel 11 , a door panel lock 13 is provided between the regulating box door panel 11 and the regulating terminal box 5 ; and a door panel sealing ring 12 is provided on the inner wall of the regulating box door panel 11 .

[0042] The regulating terminal board 6 is installed in the sealed regulating terminal box 5, which can effectively isolate the entry of external objects and ensure the protective performance of the regulating device.

[0043] In one embodiment, the regulating terminal board 6 is an integrated epoxy-cast terminal board. The integrated epoxy-cast terminal board has excellent insulation performance and does not absorb moisture, thereby ensuring long-term reliable operation of the device.

[0044] It can be understood that the present invention is the same as the existing CVT electromagnetic unit internal oil adjustment method, both of which make the CVT product meet the error value requirements through positive and negative adjustments of the ratio difference and the phase angle difference.

[0045] By adopting the external adjustment method, the test personnel can meet the requirements of technical parameters by externally adjusting the ratio difference and phase difference, which is convenient for on-site personnel to operate. The adjustment coils of the intermediate transformer 2 and the compensating reactor 3 pass through the coil adjustment plate 4 inside the electromagnetic unit box 1, and then the pile head on the coil adjustment plate 4 is connected to the adjustment terminal board 6 in the side adjustment terminal box 5 of the electromagnetic unit box 1. The positive and negative ratio differences and phase differences are adjusted through the pile head on the side adjustment terminal board 6, which solves the problem of out-of-tolerance values ​​in on-site testing, and needs to be returned to the factory for readjustment or rent a crane to separate the product, avoiding the destruction of the original sealing state of the product. It not only saves time and effort, but is also convenient and fast.

[0046] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A CVT external adjustment terminal structure, characterized in that: include: An electromagnetic unit box (1), wherein an intermediate transformer (2), a compensating reactor (3) and a coil adjustment plate (4) are installed in the electromagnetic unit box (1); An adjustment terminal box (5) is installed on the outer side of the electromagnetic unit box (1); An adjustment terminal board (6) installed in the adjustment terminal box (5); The regulating coils of the intermediate transformer (2) and the compensating reactor (3) are respectively connected to the regulating terminal board (6) via the terminal head of the coil regulating board (4), and the forward and reverse ratio difference and the phase difference can be adjusted via the terminal head of the regulating terminal board (6).

2. A CVT external adjustment terminal structure according to claim 1, characterized in that: The outer side surface of the electromagnetic unit box (1) is provided with a clearance notch for the head of the regulating terminal board (6) to extend into the interior of the electromagnetic unit box (1).

3. A CVT external adjustment terminal structure according to claim 1, characterized in that: A terminal board buffer ring (7) is provided on the outer side surface of the regulating terminal board (6), and a terminal board pressing plate (8) is abutted against the terminal board buffer ring (7).

4. A CVT external adjustment terminal structure according to claim 1, characterized in that: A terminal board flange (9) is installed on the outer side surface of the electromagnetic unit case (1), and the regulating terminal board (6) is installed on the outer side surface of the electromagnetic unit case (1) via the terminal board flange (9).

5. A CVT external adjustment terminal structure according to claim 4, characterized in that: A terminal plate sealing ring (10) is provided between the regulating terminal plate (6) and the terminal plate flange (9).

6. A CVT external adjustment terminal structure according to claim 1, characterized in that: The regulating terminal box (5) is provided with an openable and closable regulating box door panel (11).

7. A CVT external adjustment terminal structure according to claim 6, characterized in that: The inner wall of the regulating box door panel (11) is provided with a door panel sealing ring (12).

8. A CVT external adjustment terminal structure according to claim 1, characterized in that: The regulating terminal board (6) is an integrated epoxy-cast terminal board.

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