Structure for transforming ZW32 type circuit breaker with common interface into circuit breaker with standard interface

Abstract

The utility model discloses a structure for transforming a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface, which is characterized by comprising a connecting flange matched with the common interface on a circuit breaker body, the connecting flange is provided with a heightening assembly, the heightening assembly is provided with a standard aviation socket, and the standard aviation socket is connected with the common interface. The connecting flange and the heightening assembly are provided with a first through hole and a second through hole respectively, the wiring end of the standard aviation socket is matched with the second through hole, the wiring end can extend into the second through hole, and a circuit in the common interface passes through the first through hole and the second through hole and is electrically connected with the standard aviation socket. According to the utility model, a standard interface can be simply installed according to the existing interface, the structure is simple, the design is reasonable, the reliability is high, and it is ensured that an old common ZW32 type circuit breaker is effectively transformed into a state grid standard YD-41 open circuit prevention aviation plug interface, so that the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, and more particularly to a structure for transforming a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface. Background Art

[0002] Currently, ZW32 circuit breakers have a wide variety of connectors. Some older, standard ZW32 breakers, in particular, have non-standard aviation sockets, some have inrush current controller mounting boxes with CT ratio boxes, and some have inrush current controller mounting boxes without CT ratio boxes. With the standardization of the overall power grid, the interfaces of ZW32 circuit breakers are now required to be standardized to the State Grid-standard YD-41 open-circuit-proof aviation plug connector to enhance safety and compliance. Replacing all older, traditional ZW32 circuit breakers would be prohibitively expensive. Furthermore, the ZW32 circuit breaker housing is stainless steel, which is difficult to drill directly on-site. Even if the breaker is taken to a specialized switch factory, it must be disassembled before drilling holes in the stainless steel housing to install the standard connectors, which is also costly in terms of labor, material, and transportation. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model provides a structure for converting a ZW32 type circuit breaker with an ordinary interface into a circuit breaker with a standard interface. The structure can be simply installed with a standard interface according to the existing interface. It has a simple structure, reasonable design, and high reliability, ensuring that the old ordinary ZW32 type circuit breaker can be effectively converted into the State Grid standard YD-41 anti-open circuit aviation plug interface, thereby saving costs.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a structure for converting a ZW32 type circuit breaker with a conventional interface into a circuit breaker with a standard interface, comprising a connecting flange adapted to the conventional interface on the circuit breaker body, the connecting flange being provided with a heightening component, the heightening component being provided with a standard aviation socket, the connecting flange and the heightening component being provided with a first through hole and a second through hole, respectively, the wiring terminal of the standard aviation socket being adapted to the second through hole, and the wiring terminal being extendable into the second through hole, the circuit in the conventional interface passing through the first through hole and the second through hole and being electrically connected to the standard aviation socket.

[0005] The utility model is further configured as follows: sealing gaskets are provided at both ends of the connecting flange, and the sealing gaskets at both ends respectively abut against the heightening component and the ordinary interface.

[0006] The present invention is further configured as follows: a connecting portion is provided on the standard aviation socket, and a sealing member is provided between the connecting portion and the heightening component.

[0007] The utility model is further configured as follows: a plurality of connection holes are provided on the connection flange, and the connection holes are used in conjunction with countersunk screws to realize the connection between the connection flange and the ordinary interface, and the connection holes are used in conjunction with long screws to realize the connection between the heightened component, the standard aviation socket and the connection flange.

[0008] The present invention is further configured such that the length of the second through hole is greater than the length of the terminal.

[0009] The utility model is further configured as follows: the common interface on the circuit breaker body at least includes a common non-standard plug interface, an inrush current controller installation box interface with a CT inversion ratio box, and an inrush current controller installation box interface without a CT inversion ratio box.

[0010] The utility model is further configured as follows: the specifications of the connecting flange at least include a circular flange, a square flange and a square offset flange.

[0011] In summary, the present invention has the following beneficial effects:

[0012] Compared with the existing technology, this new device is simple in structure, adapting to the standard interface on the traditional old ZW32 type circuit breaker by providing a connecting flange, and then transforming the standard interface into a standard interface by providing a heightened component structure and a standard aviation socket on the connecting flange. This saves the cost of replacing the circuit breaker or taking the circuit breaker back to a professional switch factory for disassembly and reconstruction.

[0013] At the same time, the utility model is provided with a heightening component, and a second through hole is provided in the heightening component. The second through hole can allow the wiring terminal of the standard aviation socket to extend into, and the connection is more stable. At the same time, its length is longer, ensuring that the line in the ordinary interface has sufficient line accommodating space after being connected to the standard aviation socket. At the same time, sealing pads and sealing members are provided at both ends of the heightening component to ensure the sealing performance after the modification and strong reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of this embodiment.

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure when the heightening component is a tube body.

[0016] Figure 3 This is a structural diagram of the installation of a non-standard aviation interface circuit breaker.

[0017] Figure 4 This is a structural diagram of the inrush current controller installation box interface installation for a circuit breaker with a CT inversion ratio box.

[0018] Figure 5 This is a structural diagram of the inrush current controller installation box interface installation for a circuit breaker without a CT inversion ratio box.

[0019] Figure markings: 1. Connecting flange; 101. Connecting hole; 2. Heightening assembly; 3. Standard aviation socket; 301. Connecting part; 4. First through hole; 5. Second through hole; 6. Sealing gasket; 7. Seal; 8. Circuit breaker body; 9. Ordinary interface; 901. Non-standard aviation interface; 902. Interface of the inrush current controller mounting box of the circuit breaker with CT inversion ratio box; 903. Interface of the inrush current controller mounting box of the circuit breaker without CT inversion ratio box; 10. Aviation plug flange; 11. Round flange; 12. Square flange; 13. Square offset flange; 14. CT inversion ratio box; 15. Welding point. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings.

[0021] This embodiment discloses a structure for transforming a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface, such as Figure 1-5 As shown, the embodiment includes a connecting flange 1 adapted to fit the conventional interface 9 on the circuit breaker body, a heightening assembly 2 provided on the connecting flange 1, a standard aviation socket 3 provided on the heightening assembly 2, a first through-hole 4 and a second through-hole 5 provided on the connecting flange 1 and the heightening assembly 2, respectively. The terminal of the standard aviation socket 3 is adapted to fit into the second through-hole 5 and can be inserted into the second through-hole 5. The wiring in the conventional interface 9 (wires not shown in the figure) passes through the first through-hole 4 and the second through-hole 5 and is electrically connected to the standard aviation socket 3. Thus, in this embodiment, the connecting flange 1 is first connected to the conventional interface 9, and then the heightening assembly 2 is provided to provide space for installing the standard aviation socket 3. Preferably, the length of the second through-hole 5 is greater than the length of the terminal, so that after the standard aviation socket 3 is installed, there is sufficient space to accommodate the wiring; thus, the terminal of the standard aviation socket 3 can be installed in the second through-hole 5, so that the connecting flange 1, the heightening assembly 2, and the standard aviation socket 3 are stably connected and installed on the conventional interface 9, converting the conventional interface into a YD-41 anti-open circuit aviation plug interface that meets the State Grid standard. The specific wiring method is common knowledge in this field. It is only necessary to connect the corresponding line to the corresponding position of the aviation socket, which will not be described in detail.

[0022] In this embodiment, the heightening component 2 has different embodiments, which are described below with reference to the accompanying drawings.

[0023] Example 1: Reference Figure 1, sealing gaskets 6 are provided at both ends of the connecting flange 1, and the sealing gaskets 6 at both ends respectively abut against the heightening component 2 and the ordinary interface. At the same time, a connecting portion 301 is provided on the standard aviation socket 3, and a sealing member 7 is provided between the connecting portion 301 and the heightening component 2. In the first embodiment, the heightening component 2 is configured as a pad. The advantage of configuring it as a pad is that it is easier to install and the pad can also be flexibly replaced. At the same time, by configuring the sealing gasket 6 and the sealing member 7, the sealing of the interface is maintained, and the modified interface has good reliability.

[0024] The connecting flange 1 is provided with a number of connecting holes 101. The connecting holes 101 are used with countersunk screws to connect the connecting flange 1 to the ordinary interface 9. The connecting holes 101 are used with long screws to connect the heightened component, the standard aviation socket, and the connecting flange. The use of countersunk screws can ensure the flatness of the outer end surface of the connecting flange 1, facilitating the installation of the heightened component 2. The long screws penetrate the connecting portion 301 and the heightened component 2. At the same time, threads can be provided in the connecting holes 101, allowing the long screws to cooperate with the threads to achieve a stable connection. The multiple settings of the connecting holes 101 can meet the connection between the connecting flange 1 and the ordinary interface 9, and can also be used for the connection of the heightened component and the standard aviation socket, with strong versatility.

[0025] Example 2: Reference Figure 2 , Example 2 is based on Example 1, and the heightening component 2 is set as a tube body, and the heightening component 2 is fixed by welding. Specifically, one end of the connecting flange 1 is provided with a sealing gasket 6 that abuts against the ordinary interface, and the other end is welded and fixed to the heightening component 2. Correspondingly, an aviation plug flange 10 is welded to the other end of the heightening component 2 to cooperate with the connecting part 301, and the welding points 15 are located on both sides of the tube body. The advantage of choosing a tube body is that the welding fixation method has a more solid and stable structure, and no long screws are required to penetrate to fix the heightening component. Therefore, the heightening component 2 can choose a tube body structure with a thinner wall thickness, thereby leaving more space for the second through hole 5. When the wiring harness to be led out in the ordinary interface is thicker or longer, Example 2 can better meet the accommodation space of the wiring harness.

[0026] Furthermore, according to the different common interfaces on the conventional circuit breaker body, the present invention also has multiple connecting flanges for adaptation, thereby forming multiple embodiments, which are as follows:

[0027] Example 3: Reference Figure 2 When the ordinary interface is the non-standard aviation interface 901, after it is removed, the ordinary circular hole will be on the circuit breaker body, and the internal circuit function is the same as the standard aviation socket. At this time, the connecting flange 1 is simply set to a circular flange 11. The corresponding circular connecting flange is provided with several connecting holes that are adapted to the holes left after removal. The connecting flange can be installed, and then the interface modification can be realized in conjunction with the heightening component 2 and the standard aviation socket 3.

[0028] Example 4: Reference Figure 3 When the ordinary interface is the inrush current controller installation box interface 902 of the circuit breaker with a CT inversion ratio box, a square hole is left on the circuit breaker body 8 after it is removed, and the internal line matches the standard aviation socket. At this time, the connecting flange 1 is set to a square flange 12, and the corresponding square flange is provided with a plurality of connecting holes adapted to the holes left after removal. The subsequent installation is the same as that of Example 3 and will not be repeated here.

[0029] Example 5: Reference Figure 4 ,The common interface is that the circuit breaker does not have a CT inversion ratio box. When the inrush current controller is installed with the box interface 903, a square hole is also left after its removal. However, since the circuit breaker itself does not have a CT inversion ratio box, for example Figure 2 Or the CT inversion ratio box 14 in 3, so the original inrush current controller installation box interface integrates the circuit required for the CT inversion ratio box. During the dismantling and modification process, this function needs to be retained. Therefore, the connecting flange 1 must be a square offset flange 13, and the offset side is modified into a standard interface through a heightening component and a standard aviation socket; the side left by the offset is used for the adaptation installation of the CT inversion ratio box function. The specific adaptation installation of the CT inversion ratio box is common knowledge in this field.

[0030] Therefore, the utility model realizes convenient and rapid transformation of traditional old-style circuit breakers through the structural coordination and installation of the connecting flange 1, the heightening component 2 and the standard aviation socket 3, which greatly saves manpower, material resources and costs. At the same time, it has strong reliability. No matter which old-style circuit breaker is used, it only needs to adapt the structure of the connecting flange 1. It is also highly universal and has good practicality and promotion.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included in the scope of protection of the present invention.

Claims

1. A structure for transforming a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface, characterized by: The invention comprises a connecting flange (1) adapted to a common interface on a circuit breaker body, a heightening component (2) being provided on the connecting flange (1), a standard aviation socket (3) being provided on the heightening component (2), a first through hole (4) and a second through hole (5) being provided on the connecting flange (1) and the heightening component (2), respectively, a wiring terminal of the standard aviation socket (3) being adapted to the second through hole (5), and the wiring terminal being extendable into the second through hole (5), and a circuit in the common interface being electrically connected to the standard aviation socket (3) through the first through hole (4) and the second through hole (5).

2. The structure for converting a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface according to claim 1, characterized in that: Sealing gaskets (6) are provided at both ends of the connecting flange (1), and the sealing gaskets (6) at both ends respectively abut against the heightening component (2) and the common interface.

3. The structure for converting a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface according to claim 1, characterized in that: One end of the connecting flange (1) is provided with a sealing gasket (6) that abuts against a common interface, and the other end is welded and fixed to the heightening component (2).

4. A structure for converting a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface according to any one of claims 1 to 3, characterized in that: The standard aviation socket (3) is provided with a connecting portion (301), and a sealing member (7) is provided between the connecting portion (301) and the heightening assembly (2).

5. The structure for transforming a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface according to claim 2, characterized in that: The connecting flange (1) is provided with a plurality of connecting holes (101), and the connecting holes (101) cooperate with countersunk screws to realize the connection between the connecting flange (1) and the common interface, and the connecting holes (101) cooperate with long screws to realize the connection between the heightened component, the standard aviation socket and the connecting flange.

6. The structure for transforming a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface according to claim 1, characterized in that: The length of the second through hole (5) is greater than the length of the connection terminal of the standard aviation socket (3).

7. The structure for transforming a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface according to claim 1, characterized in that: The common interfaces on the circuit breaker body at least include a common non-standard plug interface, an inrush current controller installation box interface with a CT inversion ratio box, and an inrush current controller installation box interface without a CT inversion ratio box.

8. The structure for transforming a ZW32 type circuit breaker with a common interface into a circuit breaker with a standard interface according to claim 5, characterized in that: The specifications of the connecting flange (1) include at least a circular flange, a square flange and a square offset flange.

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