An electronic tag device and electronic tag built into the housing of a current transformer
By embedding electronic tags in the transformer housing, the problems of traditional paper tags being easily damaged and blurred are solved, enabling rapid information updates and stable reading, thus improving the safety and maintenance efficiency of the power system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN WEIMIN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-26
Smart Images

Figure CN224287529U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power equipment technology, and in particular relates to an electronic tag device and electronic tag built into the housing of a current transformer. Background Technology
[0002] Instrument transformers, also known as instrument transformers, are a general term for current transformers and voltage transformers. Their main function is to transform high voltage or large current into standard low voltage or small current in order to achieve standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment.
[0003] In traditional current transformer management, information recording and tracking usually rely on externally attached paper tags. However, paper tags are easily damaged and blurred during long-term use, and it is not easy to update the information. This not only causes inconvenience to inspection personnel, but may also lead to operational errors due to incorrect information reading. Utility Model Content
[0004] This utility model addresses the problem that in the existing technology, information recording and tracking usually rely on externally attached paper tags. However, paper tags are easily damaged and blurred during long-term use, and it is not easy to update the information. This not only causes inconvenience to inspection personnel, but also may lead to operational errors due to incorrect information reading. The following technical solution is proposed:
[0005] An electronic tag device built into the housing of a current transformer includes:
[0006] The base is used to store the electronic tag itself;
[0007] A protective outer casing is used to protect the electronic tag body;
[0008] A fixed component includes a movable block, a limiting block, a limiting groove, an elastic element, and a guide post. The movable block is connected to the base, the limiting block is connected to the movable block, the base has a limiting groove, the elastic element is sandwiched between the movable block and the base, and the guide post is connected to the base.
[0009] As a preferred embodiment of the above technical solution, the protective housing is provided with a slot, and the movable block is used to be inserted into the slot.
[0010] As a preferred embodiment of the above technical solution, the base is internally connected to an upper limit bar, which is in contact with the relative inclined surface of the movable block.
[0011] As a preferred embodiment of the above technical solution, the bottom of the electronic tag body is integrally formed with a slider, and the base is provided with a groove inside, and the slider slides against the inner wall of the groove.
[0012] As a preferred embodiment of the above technical solution, the base is provided with an internal threaded hole, and the positioning component is installed into the internal threaded hole by a threaded connection.
[0013] As a preferred embodiment of the above technical solution, the base is provided with a side baffle, and the side baffle and the opposite surface of the electronic tag body are in contact.
[0014] An electronic tag includes an electronic tag device as described above, which is built into the housing of a current transformer, wherein the electronic tag body is stored between a base and a protective housing.
[0015] The beneficial effects of this utility model are as follows:
[0016] (1) This utility model can quickly remove the protective shell by setting a fixing component on the base, and can conveniently perform operations such as encryption, update or backup of electronic tags to ensure the accuracy and timeliness of information and prevent security accidents caused by information delay or error.
[0017] (2) By setting the sliding groove and side baffle, the electronic tag can be stably embedded in the base. In the vibration or impact environment that the current transformer may encounter, it can effectively prevent the electronic tag from being displaced or loosened in the base, ensuring a stable connection between the electronic tag and the reading device, thereby ensuring accurate reading and tracking of information. Attached Figure Description
[0018] Figure 1 The diagram shown is an overall structural schematic of the electronic tag device built into the transformer housing in Embodiment 1;
[0019] Figure 2 The diagram shown is a structural schematic of the internal structure of the protective shell above the base;
[0020] Figure 3 What is shown is Figure 2 Schematic diagram of the structure of region A in the middle;
[0021] Figure 4 The diagram shown is a cross-sectional view of the internal structure of the base;
[0022] Figure 5 What is shown is Figure 4 Schematic diagram of the structure of region B in the middle;
[0023] Figure 6 The diagram shows the structure of the electronic tag body and its base.
[0024] In the diagram: 1. Base; 2. Protective shell; 201. Slot; 3. Electronic tag body; 4. Movable block; 5. Limiting block; 6. Limiting groove; 7. Elastic element; 8. Upper limit bar; 9. Guide post; 10. Slider; 11. Slide groove; 12. Positioning element; 13. Internal threaded hole; 14. Side baffle. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0026] Example 1
[0027] This utility model provides an electronic tag device built into the housing of a current transformer, such as... Figures 1 to 6 As shown, the electronic tag device built into the transformer housing includes a base 1, a protective shell 2, and a fixing assembly. The base 1 is used to store the electronic tag body 3, and the protective shell 2 is used to protect the electronic tag body 3. The fixing assembly includes a movable block 4, a limiting block 5, a limiting groove 6, an elastic element 7, and a guide post 9. There are two sets of movable blocks 4 arranged symmetrically, and each set of movable blocks 4 is slidably installed inside the base 1. The outer surface of each set of movable blocks 4 is symmetrically fixedly connected to the limiting block 5, and the inner surface of the base 1 is provided with a limiting groove 6 corresponding to the outer surface of the limiting block 5. An elastic element 7 is sandwiched between the base 1 and the movable block 4. One end of the elastic element 7 is connected to the movable block 4, and the other end of the elastic element 7 is fixedly connected to the inner wall of the base 1. Guide posts 9 are symmetrically installed on the front and rear sides of each set of movable blocks 4. The guide posts 9 are fixedly connected to the base 1 and can be inserted into the interior of the protective shell 2.
[0028] In this embodiment, the protective shell 2 has two sets of slots 201 inside, and each set of movable blocks 4 is inserted into the slot 201. When the movable block 4 is inserted into the slot 201, the opposite surfaces of the movable block 4 and the slot 201 are in close contact. The base 1 is also fixedly installed with an upper limit bar 8. When the movable block 4 is inserted into the slot 201, the opposite inclined surfaces of the movable block 4 and the upper limit bar 8 are in contact, so that the movable block 4 is blocked inside the base 1 and will not slip out of the base 1.
[0029] By fitting the protective shell 2 vertically onto the base 1, the protective shell 2 presses against the inclined portion of the movable block 4, causing the movable block 4 to slide into the interior of the base 1 under pressure. As the protective shell 2 continues to press down on the inclined portion of the movable block 4, the movable block 4 slides completely into the interior of the base 1, thus enabling the protective shell 2 to be fitted onto the base 1, completing the splicing operation between the base 1 and the protective shell 2.
[0030] In use, after the operator places the electronic tag body 3 inside the base 1, the protective shell 2 is placed directly above the base 1 and moved vertically downwards. This allows the guide post 9 to insert into the interior of the protective shell 2, and the bottom surface of the protective shell 2 gradually contacts the inclined surface of the movable block 4. As the protective shell 2 continues to move downwards, the bottom surface of the protective shell 2 presses against the inclined surface of the movable block 4, causing the movable block 4 to slide completely into the interior of the base 1. At this point, the elastic element 7 is compressed and deformed. When the guide post 9 is fully inserted into the interior of the protective shell 2, that is, when the bottom surface of the protective shell 2 is flush with the outer surface of the base 1... When the surfaces come into contact, the compressed elastic element 7 releases its elastic potential energy, causing the movable block 4 to move in the opposite direction. This allows the movable block 4 to be inserted into the slot 201, and the outer surface of the movable block 4 to adhere to the inner wall of the slot 201, thereby fixing the protective shell 2 onto the base 1. When it is necessary to remove the protective shell 2 to maintain or update the information of the electronic tag body 3, the movable block 4 can be pressed in the opposite direction to remove the protective shell 2 from the base 1. This allows for quick information updates and backups of the electronic tag body 3 inside the base 1, ensuring the accuracy of the information and avoiding security incidents caused by information lag.
[0031] In order for the electronic tag body 3 to be securely embedded inside the base 1, such as Figures 1 to 5 As shown, a slider 10 is fixedly connected to the bottom of the electronic tag body 3, and a groove 11 is provided inside the base 1, allowing the slider 10 to slide within the groove 11. An internal threaded hole 13 is also provided inside the base 1, and the positioning member 12 is installed into the internal threaded hole 13 via a threaded connection. A side baffle 14 is slidably installed inside the base 1. When the electronic tag body 3 is inserted into the base 1, the opposite surfaces of the side baffle 14 and the electronic tag body 3 come into contact with each other, thereby locking the electronic tag body 3 inside the base 1.
[0032] Pull the side baffle 14 upwards to remove the protrusion at the bottom of the side baffle 14 from the slide groove 11. Then, insert the electronic tag body 3 into the interior of the base 1 along the slide groove 11. When the electronic tag body 3 is completely stored inside the base 1, slide the side baffle 14 downwards so that the protrusion at the bottom engages with the slide groove 11. Then, use the positioning piece 12 to pass through the electronic tag body 3 and thread it into the interior of the base 1. This securely installs the electronic tag body 3 inside the base 1, preventing the electronic tag body 3 from loosening or shifting inside the base 1 under external force. This reduces the risk of information reading errors or failures caused by loosening or shifting of the tag, thereby improving the overall safety of the power system. It also helps protect the electronic tag from physical damage and extends its service life.
[0033] Specifically, the protective shell 2 is made of transparent plastic. The transparent material allows inspectors to clearly observe the status and information of the electronic tag body 3 without removing the protective shell 2, which greatly facilitates daily inspection and maintenance work and improves work efficiency. The protective shell 2 can also effectively prevent fallen leaves, dust and other impurities from the external environment from falling onto the electronic tag body 3. The electronic tag body 3 is a miniature electronic device that stores the identity data of the current transformer through RFID (Radio Frequency Identification) technology. The elastic element 7 is specifically set as a spring. The positioning element 12 is a screw.
[0034] Example 2
[0035] This utility model provides an electronic tag, including the above-mentioned electronic tag device built into the housing of the current transformer.
[0036] Working principle: In actual use, first pull the side baffle 14 to pull the protrusion at the bottom out of the slide groove 11, and then insert the electronic tag body 3 into the interior of the base 1 along the slide groove 11. After the electronic tag body 3 is fully inserted into the interior of the base 1, slide the side baffle 14 down so that the protrusion at the bottom is locked into the slide groove 11 again. Use the positioning part 12 to make it pass through the electronic tag body 3 and threaded into the interior of the base 1, thereby firmly installing the electronic tag body 3 inside the base 1, avoiding the electronic tag body 3 from loosening or shifting inside the base 1 under the action of external force, and reducing the risk of information reading errors or failures caused by the tag loosening or shifting.
[0037] Then, the protective shell 2 is removed and placed directly above the base 1. The protective shell 2 is then lowered so that its bottom surface begins to contact the inclined part of the movable block 4. As the protective shell 2 continues to move downward, it presses down on the inclined end of the movable block 4 and pushes the movable block 4 to slide into the base 1. When the guide post 9 is fully inserted into the interior of the protective shell 2, the compressed elastic element 7 releases its elastic potential energy, causing the movable block 4 to move in the opposite direction. This allows the movable block 4 to be inserted into the slot 201, and the outer surface of the movable block 4 to be in contact with the inner wall of the slot 201. Thus, the protective shell 2 is fixedly installed on the base 1. The protective shell 2 can effectively prevent impurities such as fallen leaves and dust from the external environment from falling onto the electronic tag body 3, reducing maintenance costs caused by impurities.
[0038] When it is necessary to update or back up the electronic tag body 3 inside the base 1, press the movable block 4 to move it into the base 1, and the protective shell 2 can be removed from the base 1. This allows for convenient encryption, updating, or backup of the electronic tag, ensuring the accuracy and timeliness of information and preventing security incidents caused by information delays or errors.
[0039] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. An electronic tag device built into the housing of a current transformer, characterized in that, include: The base (1) is used to store the electronic tag body (3); A protective outer shell (2) is used to protect the electronic tag body (3); The fixed component includes a movable block (4), a limiting block (5), a limiting groove (6), an elastic element (7), and a guide post (9). The movable block (4) is connected to the base (1), the limiting block (5) is connected to the movable block (4), the limiting groove (6) is provided in the base (1), the elastic element (7) is sandwiched between the movable block (4) and the base (1), and the guide post (9) is connected to the base (1).
2. The electronic tag device built into the transformer housing according to claim 1, characterized in that, The protective shell (2) has a slot (201) inside, and the movable block (4) is used to be inserted into the slot (201).
3. The electronic tag device built into the housing of the current transformer according to claim 1, characterized in that, The base (1) is internally connected to an upper limit bar (8), and the upper limit bar (8) and the relative inclined surfaces of the movable block (4) are in contact.
4. The electronic tag device built into the transformer housing according to claim 1, characterized in that, The bottom of the electronic tag body (3) is integrally formed with a slider (10), and the base (1) is provided with a groove (11) inside. The slider (100) slides against the inner wall of the groove (11).
5. The electronic tag device built into the housing of the current transformer according to claim 1, characterized in that, The base (1) has an internal threaded hole (13), and the positioning member (12) is installed into the internal threaded hole (13) by threaded connection.
6. The electronic tag device built into the housing of the current transformer according to claim 1, characterized in that, The base (1) is provided with a side baffle (14), and the side baffle (14) and the electronic tag body (3) are attached to each other.
7. An electronic tag, characterized in that, The device includes an electronic tag device built into the housing of a current transformer as described in any one of claims 1 to 6, wherein the electronic tag body (3) of the electronic tag is stored between the base (1) and the protective housing (2).