Plug-in mounting structure of terminal housing

Abstract

The utility model discloses a terminal shell's plug -in installation structure relates to fixing tool technical field, including the iron core, the skeleton is installed to the iron core top surface, the skeleton is equipped with the terminal shell on, and the outer periphery of iron core is equipped with the wedge -shaped groove along the axial direction, and the wedge -shaped groove is through the top surface and the bottom surface of iron core, the guide convex strip is equipped in the wedge -shaped groove, the utility model discloses the cooperation between iron core, skeleton and terminal shell realizes the assembly and stable function, not only can be in the installation stage through the positioning block and the sunken groove, the guide convex strip and the wedge -shaped groove, the corresponding plug -in of positioning convex strip and limiting slot, shortens the assembly cycle, still through the thermal expansion and cold contraction effect after low -temperature assembly, makes each part form the close self -locking, offsets the vibration when equipment operation, avoids the relative displacement of terminal shell and iron core, skeleton, guarantees equipment stable operation, and in the assembly process does not need to rely on the special connecting piece of custom -made or external auxiliary support, realizes reliable fixation through the self -structure, satisfies the assembly core demand of high -efficient, stable.

Description

Technical Field

[0001] This utility model relates to the field of fixing equipment technology, and in particular to the plug-in installation structure of terminal housing. Background Technology

[0002] In the field of fixture technology, the plug-in mounting structure of terminal housings is widely used in various equipment that require stable assembly of iron cores, frames and terminal housings; Traditional terminal shell plug-in installation structures have several shortcomings: During the assembly of the frame and core, the lack of an efficient positioning and alignment structure makes it difficult for the frame and core to quickly and accurately align, requiring considerable time for adjustment and calibration, significantly extending the overall assembly cycle. In the connection between the terminal shell and the core / frame, existing connection methods cannot achieve a reliable self-locking effect. During equipment operation, external forces such as vibration can easily cause relative displacement between the terminal shell and the core / frame, leading to component loosening and affecting the stable operation of the equipment. Furthermore, traditional structures often rely on custom-made connectors or additional external auxiliary supports to effectively fix the core, frame, and terminal shell, increasing assembly costs and complexity, making it difficult to meet the requirements for efficient and stable assembly. Therefore, improvements are needed to address these issues. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a plug-in installation structure for terminal housings.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a plug-in mounting structure for a terminal housing, comprising an iron core, a frame mounted on the top surface of the iron core, a terminal housing disposed on the frame, and a wedge-shaped groove axially formed on the outer circumferential surface of the iron core, the wedge-shaped groove penetrating the top and bottom surfaces of the iron core; the terminal housing comprises a main body and a mounting portion extending below the main body, the mounting portion comprising a guide protrusion extending axially, the guide protrusion being disposed within the wedge-shaped groove.

[0005] Preferably, the mounting portion includes a first mounting plate extending axially and axially, and the guide protrusion is formed on the inner wall of the first mounting plate.

[0006] Preferably, the mounting part further includes a second mounting plate, which extends downward from below the main body and is formed on the radially inner side of the first mounting plate; a limiting groove is formed in the middle of the second mounting plate; a positioning protrusion extending axially is provided on the outer peripheral surface of the skeleton; the positioning protrusion is disposed in the limiting groove.

[0007] Preferably, the two second mounting plates are integrally formed from both sides of the first mounting plate.

[0008] Preferably, the lower end faces of the two second mounting plates abut against the top surface of the iron core.

[0009] Preferably, the top surface of the iron core is provided with a plurality of grooves, and the lower end surface of the frame is provided with a positioning block that is inserted into the grooves.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves assembly and stabilization functions through the cooperation between the iron core, the frame and the terminal shell; it can not only shorten the assembly cycle during the installation stage by correspondingly inserting the positioning block and the countersunk groove, the guide convex strip and the wedge groove, and the positioning convex strip and the limiting groove, but also make each component form a tight self-lock through the thermal expansion and contraction effect after low temperature assembly, which can offset the vibration during equipment operation, prevent relative displacement between the terminal shell and the iron core and the frame, and ensure stable operation of the equipment; and during the assembly process, it does not need to rely on customized special connectors or external auxiliary supports, and achieves reliable fixation through its own structure, thus meeting the core requirements of efficient and stable assembly. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is an exploded view of the overall structure proposed in this utility model; Figure 3 This is a half-sectional schematic diagram of the overall structure proposed in this utility model; Figure 4 This is a schematic diagram of the terminal shell and guide block structure proposed in this utility model.

[0012] The numbers in the diagram are: 1. Iron core; 2. Skeleton; 3. Terminal shell; 4. Wedge groove; 5. Guide protrusion; 6. Limiting groove; 7. Positioning protrusion; 8. Countersunk groove; 9. Positioning block. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figure 1-4The terminal housing insertion and installation structure of this utility model includes an iron core 1, which facilitates the subsequent installation of a frame 2 and a terminal housing 3. A frame 2 is installed on the top surface of the iron core 1, facilitating the limiting connection with external components during overall equipment use. Both the frame 2 and the positioning block 9 are integrally formed by an external mold. Both the frame 2 and the positioning block 9 are cast with polytetrafluoroethylene (PTFE) to prevent interference with the magnetic flux structure of the iron core 1. PTFE can operate stably for extended periods from -260℃ to +250℃ and maintains rigidity and chemical inertness even in liquid nitrogen environments, ensuring subsequent assembly and process requirements. The frame 2 is equipped with a terminal housing 3, and a wedge-shaped groove 4 is axially formed on the outer circumferential surface of the iron core 1. The wedge-shaped groove 4 facilitates the subsequent sliding connection of the terminal housing 3 and limits its position. The wedge-shaped groove 4 penetrates the top and bottom surfaces of the iron core 1. The terminal housing 3 includes a main body and a mounting part extending below the main body. The terminal housing 3 facilitates the subsequent connection of external cables to provide magnetic flux to the iron core 1. The shell 3 and the components mounted on the bottom surface of the terminal shell 3 are integrally formed by an external mold. The terminal shell 3 and the corresponding components are cast with polytetrafluoroethylene liquid to prevent affecting the magnetic flux structure of the iron core 1. The mounting part includes a guide protrusion 5 extending axially. The guide protrusion 5 is arranged in a wedge groove 4. The guide protrusion 5 facilitates the quick installation and positioning of the terminal shell 3 on the iron core 1 by cooperating with the wedge groove 4. The mounting part includes a first mounting plate extending axially. The guide protrusion 5 is formed on the inner wall of the first mounting plate. The mounting part also includes a second mounting plate, which extends downward from below the main body and is formed on the radial inner side of the first mounting plate. A limiting groove 6 is opened in the middle of the second mounting plate. The limiting groove 6 facilitates the sliding of the guide protrusion 5. The outer peripheral surface of the frame 2 is provided with a positioning protrusion 7 extending axially. The positioning protrusion 7 is arranged in the limiting groove 6. The positioning protrusion 7 facilitates the quick sliding connection and positioning of the terminal shell 3 by cooperating with the wedge groove 4.

[0015] In this utility model, two second mounting plates are integrally formed from both sides of the first mounting plate. The lower end surfaces of the two second mounting plates abut against the top surface of the iron core 1. The top surface of the iron core 1 is provided with several grooves 8, which facilitate the quick positioning of the frame 2 by the iron core 1. The lower end surface of the frame 2 is equipped with positioning blocks 9 that are inserted into the grooves 8, which facilitate the quick positioning of the frame 2 in the subsequent installation process with the iron core 1.

[0016] Working principle: In use of this invention, the iron core 1 is placed in an external clamping device and horizontally clamped. The frame 2 is clamped using an external clamping tool. Then, the positioning block 9 of the frame 2 is sprayed through an external liquid nitrogen spray tank. Alternatively, the frame 2 can be briefly placed in liquid nitrogen. The low temperature enhances the intermolecular interaction force within the frame 2, causing the positioning block 9 and positioning protrusion 7 to shrink. Then, the frame 2 is inserted into the sink 8 and positioning block 9. The frame 2 and iron core 1 are allowed to return to normal temperature (during the temperature recovery process, the external clamping device is used to clamp the frame 2). The frame 2 and the iron core 1 are tightly clamped. Then, the clamping of the iron core 1 is rotated from the horizontal direction to the vertical direction (frame 2 facing upward). Then, the terminal shell 3 is briefly placed in liquid nitrogen. At the same time, the positioning protrusion 7 area of ​​the frame 2 is sprayed through the pressurized liquid nitrogen tank. The terminal shell 3 is connected to the iron core 1 and the frame 2 through the guide protrusion 5 and the limiting groove 6 respectively with the wedge groove 4 and the positioning protrusion 7. Wait for the temperature to rise (after the temperature rises, the plasticity of the terminal shell 3 will squeeze the wedge groove 4, and the positioning protrusion 7 of the frame 2 will squeeze the terminal shell 3 to form a perfect locking limit of its own structure).

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plug-in mounting structure for a terminal housing, comprising an iron core (1), characterized in that: The iron core (1) is mounted with a frame (2) on its top surface. A terminal shell (3) is disposed on the frame (2). A wedge-shaped groove (4) is provided on the outer peripheral surface of the iron core (1) along the axial direction. The wedge-shaped groove (4) penetrates the top and bottom surfaces of the iron core (1). The terminal shell (3) includes a main body and a mounting part extending below the main body. The mounting part includes a guide protrusion (5) extending along the axial direction. The guide protrusion (5) is disposed in the wedge-shaped groove (4).

2. The plug-in mounting structure of the terminal housing according to claim 1, characterized in that: The mounting portion includes a first mounting plate extending along the axial direction and the guide protrusion (5) is formed on the inner wall of the first mounting plate.

3. The plug-in mounting structure of the terminal housing according to claim 2, characterized in that: The mounting part further includes a second mounting plate, which extends downward from the bottom of the main body and is formed on the radial inner side of the first mounting plate; a limiting groove (6) is provided in the middle of the second mounting plate; a positioning protrusion (7) extending axially is provided on the outer peripheral surface of the skeleton (2); the positioning protrusion (7) is disposed in the limiting groove (6).

4. The plug-in mounting structure of the terminal housing according to claim 3, characterized in that: The two second mounting plates are integrally formed from both sides of the first mounting plate.

5. The plug-in mounting structure of the terminal housing according to claim 3, characterized in that: The lower end faces of the two second mounting plates abut against the top surface of the iron core (1).

6. The plug-in mounting structure of the terminal housing according to claim 5, characterized in that: The top surface of the iron core (1) is provided with several grooves (8), and the lower end surface of the frame (2) is provided with a positioning block (9) that is inserted into the grooves (8).

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