An indoor voltage transformer

CN224625287UActive Publication Date: 2026-08-11SHIJIAZHUANG HUILING TRANSFORMER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]户内电压互感器在使用的使用,是采用板件和螺栓直接固定安装在指定位置处,然后通过户内电压互感器上接线端的螺栓对电线进行连接固定,从而完成对户内电压互感器的接线,但是户内电压互感器接线端上的螺栓通常是暴露在外,从而外界灰尘导电性杂物落在螺栓上,就会出现相邻线路出现断路的情况,从而存有一定的安全隐患

Benefits of technology

本实用新型利用电压互感器主体、接线端、防护壳体和安装组件的配合使用方式,防护壳体可以对电压互感器主体上的接线端进行遮挡防护,从而提高其使用的安全性,并且在导向组件和卡接组件的作用下,可以便捷对防护壳体进行安装或拆卸,提高其操作的便捷性。

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Abstract

This utility model discloses an indoor voltage transformer, including a voltage transformer body, a base plate fixedly connected to the bottom of the voltage transformer body, a terminal block installed on one side of the voltage transformer body, an electrical connection to the terminal block, a protective housing disposed on the top of the terminal block, the protective housing being used to shield and protect the connection between the wire and the terminal block, and a slot corresponding to the wire is opened on one side of the bottom of the protective housing, and a mounting component disposed on one side of the voltage transformer body, the mounting component being used to limit the connection of the protective housing. This utility model utilizes the cooperative use of the voltage transformer body, terminal block, protective housing, and mounting component. The protective housing can shield and protect the terminal block on the voltage transformer body, thereby improving its safety. Furthermore, with the help of the guide component and the snap-fit ​​component, the protective housing can be easily installed or removed, improving its ease of operation.
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Description

Technical Field

[0001] This utility model relates to the field of voltage transformers, and in particular to an indoor voltage transformer. Background Technology

[0002] Indoor voltage transformers are electrical devices used in power systems, primarily for measuring and converting high-voltage signals for safe use in low-voltage ranges. They are widely used in power monitoring, automation systems, protection devices, and distribution networks.

[0003] Indoor voltage transformers are typically installed in designated locations using plates and bolts. Wires are then connected and secured using bolts on the transformer's terminals. However, the bolts on the transformer's terminals are usually exposed, allowing external dust and conductive debris to fall onto them, potentially causing open circuits in adjacent lines and posing a safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide an indoor voltage transformer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an indoor voltage transformer, comprising: Voltage transformer body; The base plate is fixedly connected to the bottom of the voltage transformer body and is used to install and fix the voltage transformer body. The terminal is installed on one side of the voltage transformer body and is electrically connected to a wire. A protective housing is provided on the top of the terminal block. The protective housing is used to shield and protect the connection between the wire and the terminal block. A groove corresponding to the wire is provided on one side of the bottom of the protective housing. The mounting assembly is disposed on one side of the voltage transformer body and is used to limit the connection of the protective housing.

[0006] Preferably, the mounting components include: A guide assembly is disposed between the voltage transformer body and the protective housing; A snap-fit ​​assembly is disposed on the side of the protective housing and is used to snap and limit the movement of the protective housing.

[0007] Preferably, the guiding component includes: Guide rod, one end of which is fixedly connected to the main body of the voltage transformer; A fixing plate is fixedly connected to the side of the inner wall of the protective shell, and one end of the fixing plate is provided with a guide hole that matches the guide rod.

[0008] Preferably, the snap-fit ​​assembly includes: A fixed frame is fixedly connected to the side of the protective housing; A positioning plate, one end of which is fixedly connected to the main body of the voltage transformer, and the outer wall of the positioning plate is slidably sleeved with the fixed frame.

[0009] Preferably, the snap-fit ​​assembly further includes: Mounting holes are provided at the top and bottom of the fixed frame; An elastic element, wherein the elastic element is disposed inside the mounting hole; An arc groove is formed on the outside of the positioning plate, and the outer wall of the elastic element is slidably engaged with the arc groove.

[0010] Preferably, the snap-fit ​​assembly further includes: A fixing block is provided on the side of the fixing frame, and one end of the elastic element is fixedly connected to the fixing block; A fixing bolt is provided on the fixing block, and the fixing block is fixedly connected to the fixing frame by the fixing bolt.

[0011] The technical effects and advantages of this utility model are as follows: This utility model utilizes the combined use of a voltage transformer body, terminals, a protective housing, and mounting components. The protective housing can shield and protect the terminals on the voltage transformer body, thereby improving its safety. Furthermore, with the help of the guide components and snap-fit ​​components, the protective housing can be easily installed or removed, improving its ease of operation. Attached Figure Description

[0012] Figure 1 This is a top view diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the protective shell of this utility model; Figure 3 This is a schematic diagram of the internal structure of part of the top view of this utility model; Figure 4 This is a schematic diagram of the internal structure of the fixed frame of this utility model from the front.

[0013] In the diagram: 1. Voltage transformer body; 2. Base plate; 3. Terminal; 4. Wire; 5. Protective housing; 6. Slot; 7. Mounting assembly; 71. Guide assembly; 711. Guide rod; 712. Fixing plate; 72. Snap-fit ​​assembly; 721. Fixing frame; 722. Positioning plate; 723. Elastic element; 724. Mounting hole; 725. Fixing block; 726. Fixing bolt. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This utility model provides, for example Figure 1-4 The image shows an indoor voltage transformer.

[0016] Example 1 The device includes a voltage transformer body 1, a base plate 2, terminals 3, a protective housing 5, and mounting components 7. The base plate 2 is fixedly connected to the bottom of the voltage transformer body 1 and is used to install and fix the voltage transformer body 1. The terminals 3 are installed on one side of the voltage transformer body 1 and are electrically connected to wires 4. The protective housing 5 is located on top of the terminals 3 and is used to shield and protect the connection between the wires 4 and the terminals 3. Figure 2 As shown, when the protective housing 5 is installed on top of the terminal 3, the protective housing 5 can shield and protect the bolts connecting the terminal 3 to the wire 4, thereby preventing foreign objects from falling on the bolts connecting the terminal 3 to the wire 4 and causing a short circuit in the terminal 3. In addition, a slot 6 corresponding to the wire 4 is opened on one side of the bottom of the protective housing 5. Under the action of the slot 6, the protective housing 5 can also arrange the wire 4. The mounting component 7 is set on one side of the voltage transformer body 1. The mounting component 7 is used to limit the connection of the protective housing 5, thereby ensuring the stability of the installation of the protective housing 5.

[0017] Furthermore, the mounting assembly 7 includes a guide assembly 71 and a snap-fit ​​assembly 72. The guide assembly 71 is disposed between the voltage transformer body 1 and the protective housing 5. Under the action of the guide assembly 71, the stability of the connection on the protective housing 5 can be ensured. The snap-fit ​​assembly 72 is disposed on the side of the protective housing 5. The snap-fit ​​assembly 72 is used to snap and limit the protective housing 5. Under the action of the snap-fit ​​assembly 72, the protective housing 5 can be prevented from sliding without the action of external force.

[0018] Furthermore, the guide assembly 71 includes a guide rod 711 and a fixing plate 712. One end of the guide rod 711 is fixedly connected to the voltage transformer body 1, and the fixing plate 712 is fixedly connected to the side of the inner wall of the protective housing 5. One end of the fixing plate 712 is provided with a guide hole that matches the guide rod 711, so that the guide rod 711 and the guide hole can be slidably sleeved together to guide and limit the protective housing 5.

[0019] Example 2 Based on Embodiment 1, the snap-fit ​​assembly 72 includes a fixed frame 721 and a positioning plate 722. The fixed frame 721 is fixedly connected to the side of the protective housing 5. One end of the positioning plate 722 is fixedly connected to the voltage transformer body 1. The outer wall of the positioning plate 722 is slidably sleeved with the fixed frame 721. The positioning plate 722 and the fixed frame 721 are slidably connected, which can also guide and limit the protective housing 5 again.

[0020] Furthermore, the snap-fit ​​assembly 72 also includes a mounting hole 724, an elastic element 723, and an arc groove. The mounting hole 724 is formed at the top and bottom of the fixed frame 721. The elastic element 723 is disposed inside the mounting hole 724. The arc groove is formed outside the positioning plate 722. The outer wall of the elastic element 723 is slidably snapped into the arc groove. The snap-fit ​​between the elastic element 723 and the arc groove on the positioning plate 722 can limit the snap-fit ​​between the positioning plate 722 and the fixed frame 721, thereby ensuring the stability of the protective housing 5 installation. In addition, the elastic element 723 has an S-curved portion, so when the protective housing 5 is pulled, the positioning plate 722 can squeeze the elastic element 723, and the elastic element 723 deforms from the S-curved portion, so that the protective housing 5 can drive the fixed frame 721 to slide relative to the positioning plate 722, so as to facilitate the installation or removal of the protective housing 5.

[0021] Furthermore, the snap-fit ​​assembly 72 also includes a fixing block 725 and a fixing bolt 726. The fixing block 725 is disposed on the side of the fixing frame 721. One end of the elastic element 723 is fixedly connected to the fixing block 725. The fixing bolt 726 is disposed on the fixing block 725. The fixing block 725 is fixedly connected to the fixing frame 721 through the fixing bolt 726. By removing the fixing bolt 726, the fixing block 725 can drive the elastic element 723 to separate from the fixing frame 721, so as to facilitate the replacement of the elastic element 723.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An indoor voltage transformer, characterized in that, include: Voltage transformer body (1); The base plate (2) is fixedly connected to the bottom of the voltage transformer body (1) and is used to install and fix the voltage transformer body (1). Terminal (3) is installed on one side of the voltage transformer body (1) and is electrically connected to wire (4). The protective housing (5) is located on the top of the terminal (3). The protective housing (5) is used to shield and protect the connection between the wire (4) and the terminal (3). A slot (6) corresponding to the wire (4) is provided on one side of the bottom of the protective housing (5). Mounting component (7) is disposed on one side of the voltage transformer body (1) and is used to limit the connection of the protective housing (5).

2. The indoor voltage transformer according to claim 1, characterized in that, The installation component (7) includes: A guide assembly (71) is disposed between the voltage transformer body (1) and the protective housing (5); A snap-fit ​​assembly (72) is disposed on the side of the protective housing (5) and is used to snap and limit the protective housing (5).

3. An indoor voltage transformer according to claim 2, characterized in that, The guide component (71) includes: Guide rod (711), one end of which is fixedly connected to the voltage transformer body (1); A fixing plate (712) is fixedly connected to the side of the inner wall of the protective shell (5). One end of the fixing plate (712) is provided with a guide hole that matches the guide rod (711).

4. An indoor voltage transformer according to claim 2, characterized in that, The snap-fit ​​assembly (72) includes: A fixed frame (721) is fixedly connected to the side of the protective housing (5); Positioning plate (722), one end of which is fixedly connected to the voltage transformer body (1), and the outer wall of the positioning plate (722) is slidably sleeved with the fixed frame (721).

5. An indoor voltage transformer according to claim 4, characterized in that, The snap-fit ​​assembly (72) further includes: Mounting holes (724) are provided at the top and bottom of the fixing frame (721); An elastic element (723) is disposed inside the mounting hole (724); The circular arc groove is formed on the outside of the positioning plate (722), and the outer wall of the elastic member (723) is slidably engaged with the circular arc groove.

6. An indoor voltage transformer according to claim 5, characterized in that, The snap-fit ​​assembly (72) further includes: A fixing block (725) is provided on the side of the fixing frame (721), and one end of the elastic member (723) is fixedly connected to the fixing block (725); A fixing bolt (726) is provided on a fixing block (725), and the fixing block (725) is fixedly connected to the fixing frame (721) by the fixing bolt (726).