Voltage transformer
By designing a plug-in connection wiring device, the problem of damage to the wire core caused by the traditional voltage transformer wiring method is solved, and the stability and safety of the voltage transformer are improved.
Patent Information
- Application Number
- CN202423037754.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-10
AI Technical Summary
The traditional voltage transformer wiring method uses a simple wiring device, which can easily damage the wire cores in the connecting wires, resulting in unstable use.
The wiring device is designed as a plug-in connection method, including a wiring seat and a plug-in terminal, which are connected by a connecting block and a fastener. Combined with the locking hole and guide groove design, it can achieve quick connection and prevent loosening, replacing the traditional bolt winding connection.
It protects the inner core of the connecting wire, increases the safety and stability of the voltage transformer, and extends its service life.
Smart Images
Figure CN223486839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of voltage transformer technology, specifically to a voltage transformer. Background Technology
[0002] A voltage transformer (PT, VT) is similar to a transformer, used to transform the voltage on a power line. However, while transformers transform voltage to transmit electrical energy, they have a large capacity, typically measured in kilovolt-amperes (kVA) or megavolt-amperes (MVA), voltage transformers primarily transform voltage to power measuring instruments and relay protection devices. They are used to measure line voltage, power, and electrical energy, or to protect valuable equipment, motors, and transformers in the event of a line fault. Therefore, voltage transformers have a very small capacity, generally only a few volt-amperes or tens of volt-amperes, with a maximum of no more than one thousand volt-amperes.
[0003] However, existing voltage transformers still have certain drawbacks in use: the traditional wiring method of voltage transformers uses a simple wiring device to achieve electrical connection of the voltage transformer. This wiring device can easily damage the wire core inside the connection wire, making the voltage transformer unstable during use. Summary of the Invention
[0004] The purpose of this utility model is to provide a voltage transformer to solve the problem mentioned in the background art: the traditional wiring method of voltage transformers achieves electrical connection of voltage transformers through a simple wiring device. This wiring device is prone to damaging the wire core inside the connecting wire, making the voltage transformer unstable during use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a voltage transformer, comprising a transformer body, wherein an installation port is provided on the front surface of the transformer body, and connecting cylinders are fixedly connected to both sides of the installation port on the front surface of the transformer body, a wiring device is installed inside the installation port, and connecting blocks are fixedly connected to both sides of the outer wall of the wiring device at opposite positions to the connecting cylinders, and connecting holes are provided on the surface of the connecting blocks, and the connecting holes are connected to the connecting cylinders by fasteners.
[0006] Preferably, the wiring device includes a terminal block and plug terminals. The terminal block is installed at the mounting port, and connecting blocks are fixedly connected to both sides of the outer wall of the terminal block. A plug cavity is opened inside the terminal block, and multiple plug terminals are fixedly installed in the plug cavity.
[0007] Preferably, the connector terminals are arranged and fixedly installed inside the connector cavity.
[0008] Preferably, locking holes are provided on both sides of the inner wall of the insertion cavity, and a guide groove is provided at the cavity opening opposite to the locking holes, and the guide groove communicates with the locking holes.
[0009] Preferably, positioning holes are provided around the perimeter of the surface at the opening of the insertion cavity.
[0010] Beneficial effects
[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows:
[0012] By combining the structural design of this utility model, the wiring device is designed as a plug-in connection to replace the traditional bolt-wound connection, which greatly protects the internal wire core of the connection wire and increases the safety and stability of the voltage transformer. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] The correspondence between the labels and component names in the attached figures is as follows:
[0015] 1. Current transformer body; 2. Connecting cylinder; 3. Mounting port; 4. Wiring device; 5. Connecting block; 6. Terminal block;
[0016] 42. Terminal block; 43. Locking hole; 44. Guide groove; 45. Positioning hole; 46. Socket cavity; 51. Connection hole. Detailed Implementation
[0017] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] like Figure 1This is a schematic diagram of a voltage transformer according to a preferred embodiment of the present invention. In this embodiment, the voltage transformer includes a transformer body 1. An installation port 3 is provided on the front surface of the transformer body 1. Connecting cylinders 2 are fixedly connected to both sides of the installation port 3 on the front surface of the transformer body 1. A wiring device 4 is installed inside the installation port 3. Connecting blocks 5 are fixedly connected to both sides of the outer wall of the wiring device 4 at opposite positions to the connecting cylinders 2. Connecting holes 51 are provided on the surface of the connecting blocks 5. The connecting holes 51 are connected to the connecting cylinders 2 by fasteners. This structural design facilitates the replacement of the wiring device 4 in subsequent use and extends the service life of the transformer body 1. Combined with the structural design of the present invention, by designing the wiring device 4 as a plug-in connection to replace the traditional bolt-wound connection, the internal core of the connecting wire is greatly protected, and the safety and stability of the voltage transformer are increased.
[0020] In this embodiment, the wiring device 4 includes a terminal block 41 and a connector 42. The terminal block 41 is installed in the mounting port 3. Connecting blocks 5 are fixedly connected to both sides of the outer wall of the terminal block 41. A connector cavity 46 is opened in the terminal block 41. Multiple connectors 42 are fixedly installed in the connector cavity 46. The voltage input function of the voltage transformer is realized through the connectors 42.
[0021] In this embodiment, the connector terminals 42 and the like are all arranged and fixedly installed in the connector cavity 46.
[0022] In this embodiment, locking holes 43 are provided on both sides of the inner wall of the insertion cavity 46. The locking holes 43 enable the insertion blocks that are inserted into the insertion cavity 46 to lock each other, preventing the possibility of loosening during use. At the same time, a guide groove 44 is provided at the opening of the insertion cavity 46 at a position opposite to the locking holes 43, and the guide groove 44 communicates with the locking holes 43, which facilitates the insertion of the locking block in the insertion block.
[0023] In this embodiment, positioning holes 45 are provided around the surface of the cavity opening of the insertion cavity 46. The positioning holes 45 and the guide groove 44 work together to achieve a guiding effect, thereby achieving a quick insertion effect and preventing the insertion terminal 42 from being damaged during the insertion process.
[0024] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.
Claims
1. A voltage transformer, comprising a transformer body (1), characterized in that: The front surface of the current transformer body (1) is provided with an installation port (3). Connecting cylinders (2) are fixedly connected to both sides of the front surface of the current transformer body (1) at the installation port (3). A wiring device (4) is installed inside the installation port (3). Connecting blocks (5) are fixedly connected to both sides of the outer wall of the wiring device (4) at the opposite position of the connecting cylinders (2). A connecting hole (51) is provided on the surface of the connecting block (5). The connecting hole (51) is connected to the connecting cylinder (2) by a fastener.
2. The voltage transformer according to claim 1, characterized in that: The wiring device (4) includes a terminal block (41) and a plug terminal (42). The terminal block (41) is installed in the mounting port (3). Connecting blocks (5) are fixedly connected to both sides of the outer wall of the terminal block (41). A plug cavity (46) is opened in the terminal block (41). Multiple plug terminals (42) are fixedly installed in the plug cavity (46).
3. A voltage transformer according to claim 2, characterized in that: The connector terminals (42) are all arranged and fixedly installed in the connector cavity (46).
4. A voltage transformer according to claim 2, characterized in that: Locking holes (43) are provided on both sides of the inner wall of the insertion cavity (46). A guide groove (44) is provided at the opening of the insertion cavity (46) at a position opposite to the locking holes (43), and the guide groove (44) communicates with the locking holes (43).
5. A voltage transformer according to claim 4, characterized in that: The insertion cavity (46) has positioning holes (45) around its surface at the opening.