Combined mutual inductor shell
By using a combined transformer housing design and multiple protective coatings, the problems of complex and easily damaged traditional transformer housing structures are solved, achieving convenient maintenance and environmental adaptability, and extending service life.
Patent Information
- Application Number
- CN202422930493.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Traditional instrument transformers have complex housing structures, high maintenance costs, and are easily damaged in harsh environments, affecting their performance and lifespan.
It adopts a modular structural design, including a main shell and a base. The main shell is divided into first and second shells, with reinforcing ribs and multiple protective coatings on the surface.
It improves the ease of maintenance and structural strength, enhances environmental adaptability, ensures stable operation of the instrument transformer in harsh environments, and extends its service life.
Smart Images
Figure CN223665268U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electrical equipment technology, and more particularly to a combined transformer housing. Background Technology
[0002] Instrument transformers are crucial equipment in power systems. With continuous technological advancements and the evolving needs of power system development, instrument transformer manufacturing technology has significantly improved, resulting in a variety of specifications and product series. The choice of material for the instrument transformer housing has a significant impact on its performance and service life. With the continuous progress of materials science and the development of instrument transformer technology, the materials used for instrument transformer housings have also undergone several evolutions. Therefore, traditional instrument transformer housings have the following drawbacks:
[0003] 1. Traditional current transformer designs are often complex in structure, requiring the disassembly of a large number of components during maintenance, resulting in high maintenance costs and long maintenance time.
[0004] 2. Traditional current transformers are easily damaged in harsh environments, affecting their performance and lifespan. Summary of the Invention
[0005] The purpose of this invention is to solve the above-mentioned problems by proposing a combined transformer housing.
[0006] To achieve the above objectives, the following technical solution was adopted:
[0007] A combined current transformer housing includes a housing body and a base. The housing body is divided into a first housing and a second housing. The first housing has several reinforcing ribs inside. Four first threaded holes are respectively provided on the left and right sides of the first housing. A second threaded hole is provided below the first threaded holes, indicating that the second housing is connected to the first housing. The base includes a top cover and a bottom base. Two third threaded holes are provided on the upper side of the top cover. Two fourth threaded holes are provided on the lower side of the top cover. The top cover is installed below the housing body. Two external interfaces are provided on the front of the bottom base. Several fifth threaded holes are provided at the outermost two ends of the bottom base. The bottom base is installed below the top cover.
[0008] Preferably, the shape of the first outer shell matches that of the second outer shell, the outer side of the reinforcing rib inside the first outer shell protrudes, while the outer side of the reinforcing rib inside the second outer shell is recessed, and they fit together. An insulating pad is provided on the inner side of the reinforcing rib.
[0009] Preferably, the first outer shell has a protrusion at its lower part, the second outer shell has a notch at its lower part, the protrusion matches the notch, a plurality of first interfaces are installed on the protrusion, and the left and right sides of the second outer shell have first threaded holes that match the first outer shell.
[0010] Preferably, the shape of the top cover matches the outer shell body, and the top of the top cover is provided with a plurality of circular holes, in which a second interface is installed, and the second interface matches the first interface.
[0011] Preferably, the third threaded hole is located at a forward position, offset from the second threaded hole, and the third threaded hole matches the second threaded hole. The side of the bottom base is provided with a fourth threaded hole that matches the top cover.
[0012] Preferably, the surfaces of the outer shell and the base are coated with a sun-protective layer, a waterproof layer, and an anti-corrosion layer, which are applied sequentially to the surfaces of the outer shell and the base.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the combined structure of the current transformer housing and the interface separation design can improve the convenience of maintenance, making it easier to access and replace internal components. Moreover, the interior of the housing body is provided with multiple reinforcing ribs, which not only improves the structural strength but also helps heat dissipation and provides support for the iron core and coil to a certain extent. The application of multiple protective coatings on the surface of the current transformer housing improves the environmental adaptability of the current transformer, enabling it to operate stably in various harsh environments and preventing sensor damage, thereby affecting performance and lifespan. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a combined current transformer housing according to Embodiment 1 of the present invention;
[0015] Figure 2 This is a schematic diagram of the main body of a combined current transformer housing according to Embodiment 1 of the present invention;
[0016] Figure 3 This is a schematic diagram of the base of a combined current transformer housing according to Embodiment 1 of the present invention;
[0017] Figure 4 This is a schematic diagram of the coating on the housing of a combined current transformer according to Embodiment 1 of the present invention; Detailed Implementation
[0018] Hereinafter, a combined current transformer housing of the present invention will be specifically described with reference to the accompanying drawings.
[0019] like Figure 1As shown, a combined current transformer housing includes a housing body 1 and a base 2. The housing body 1 is divided into a first housing 11 and a second housing 12. The first housing 11 has several reinforcing ribs 13 inside. The first housing 11 has four first threaded holes 14 on its left and right sides respectively. The second threaded holes 15 are provided below the first threaded holes 14. The second housing 12 is connected to the first housing 11. The base 2 includes a top cover 21 and a bottom base 222. The top cover 21 has two third threaded holes 23 on its upper side and two fourth threaded holes 24 on its lower side. The top cover 21 is installed below the housing body 1. The bottom base 22 has two external interfaces 25 on its front and several fifth threaded holes 26 at its outermost two ends. The bottom base 22 is installed below the top cover 21.
[0020] like Figure 2 As shown, the shape of the first outer shell 11 matches that of the second outer shell 12. The outer side of the reinforcing rib 13 inside the first outer shell 11 protrudes, while the outer side of the reinforcing rib 13 inside the second outer shell 12 is recessed and fits together. An insulating pad 16 is provided on the inner side of the reinforcing rib 13. A protrusion 17 is provided below the first outer shell 11, and a notch 18 is provided below the second outer shell 12. The protrusion 17 matches the notch 18. Several first interfaces 19 are installed on the protrusion 17. First threaded holes 14 that match the first outer shell 11 are provided on the left and right sides of the second outer shell 12.
[0021] like Figure 3 As shown, the shape of the top cover 21 matches the outer shell body 1, and the top of the top cover 21 is provided with several round holes 27. The second interface 28 is installed in the round holes 27, and the second interface 28 matches the first interface 19. The third threaded hole 23 is located at the front position and is offset from the second threaded hole 15. The third threaded hole 23 matches the second threaded hole 15. The side of the bottom base 22 is provided with a fourth threaded hole 24 that matches the top cover 21.
[0022] like Figure 4 As shown, the surfaces of the outer shell 1 and the base 2 are coated with a layer, the outermost layer is a sun protection layer 3, the middle layer is a waterproof layer 4, and the innermost layer is an anti-corrosion layer 5.
[0023] In this embodiment, as Figure 1As shown, firstly, the insulating pads 16 are installed inside the main body 1 of the outer casing. Then, the internal components such as the core of the current transformer are installed on the reinforcing ribs 13 of the first outer casing 11. The winding of the current transformer is connected to the first interface 19 below the first outer casing 11. Then, the second outer casing 12 is installed on the first outer casing 11 and connected by bolts. After the main body 1 of the outer casing is installed, the external interface 25 and the second interface 28 are connected by wires. Then, the fourth threaded hole 24 is installed by bolts. The top cover 21 is connected to the bottom base 22. After the main body 1 of the outer casing and the base 2 are installed, the anti-corrosion layer 5, the waterproof layer 4 and the sun protection layer 3 are applied to the surface in sequence. Then, the first interface 19 below the main body 1 of the outer casing 1 is aligned with the second interface 28 on the top of the base 2 and they are joined. The second threaded hole 15 and the third threaded hole 23 are connected by bolts to connect and fix the main body 1 of the outer casing and the base 2. Finally, the current transformer is installed in the predetermined position and the current transformer is fixed by bolts passing through the fifth threaded hole 26.
[0024] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Those skilled in the art may find other optimizations and additional functions in this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A combined current transformer housing, characterized in that: The system includes a main shell (1) and a base (2). The main shell (1) is divided into a first shell (11) and a second shell (12). The first shell (11) has several reinforcing ribs (13) inside. The first shell has four first threaded holes (14) on its left and right sides respectively. The first threaded holes (14) are provided with second threaded holes (15) below them, indicating that the second shell (12) is connected to the first shell (11). The base (2) includes a top cover (21) and a bottom cover (22). The base (22) has a third threaded hole (23) on the upper side of the top cover (21) and a fourth threaded hole (24) on the lower side of the top cover (21). The top cover (21) is installed below the outer shell body (1). The bottom base (22) has an external interface (25) on the front. The bottom base (22) has several fifth threaded holes (26) at its outermost two ends. The bottom base (22) is installed below the top cover (21).
2. The transformer housing as described in claim 1, characterized in that: The shape of the first outer shell (11) matches that of the second outer shell (12). The outer side of the reinforcing rib (13) inside the first outer shell (11) protrudes, while the outer side of the reinforcing rib (13) inside the second outer shell (12) is recessed, and they fit together. An insulating pad (16) is provided on the inner side of the reinforcing rib (13).
3. The transformer housing as described in claim 2, characterized in that: The first outer shell (11) has a protrusion (17) on its lower side, and the second outer shell (12) has a notch (18) on its lower side. The protrusion (17) matches the notch (18). The protrusion (17) is equipped with a plurality of first interfaces (19). The left and right sides of the second outer shell (12) are provided with first threaded holes (14) that match the first outer shell (11).
4. The transformer housing as described in claim 3, characterized in that: The shape of the top cover (21) matches the outer shell body (1), and the top of the top cover (21) is provided with a plurality of round holes (27), and a second interface (28) is installed in the round holes (27), which matches the first interface (19).
5. The transformer housing as described in claim 1, characterized in that: The third threaded hole (23) is located at the front and is offset from the second threaded hole (15). The third threaded hole (23) matches the second threaded hole (15). The side of the bottom base (22) is provided with a fourth threaded hole (24) that matches the top cover (21).
6. The transformer housing as described in claim 1, characterized in that: The outer shell body (1) and the base (2) are coated with a sun protection layer (3) on the outermost layer, a waterproof layer (4) in the middle, and an anti-corrosion layer (5) on the innermost layer.