Open-type mutual inductor housing

Abstract

The utility model discloses an open mutual inductor shell, including upper casing, lower casing and rotating rod, the lateral wall on upper casing is equipped with the fixed connection end with the lateral wall of rotating rod, the lateral wall on lower casing is equipped with the base of protruding, be equipped with the through hole of the through of rotating rod on the base, be equipped with the moving hole of the axial movement of connection end along the through hole and the rotating hole of the circumferential movement of connection end along the through hole on the through hole, rotating hole and moving hole intercommunication, and moving hole and the one or two orifices intercommunication of through hole, compared with prior art, the utility model is not easy to appear the fracture or appear irreversible deformation when assembling, guarantees the opening and closing effect, and the connecting strength between upper casing and lower casing is stronger, guarantees the normal use of the utility model.

Description

Technical Field

[0001] This utility model belongs to the field of current transformer technology, specifically relating to an openable current transformer housing. Background Technology

[0002] Open-type instrument transformers are devices that proportionally transform voltage or current, converting high voltage or large current into standard low voltage or standard small current to achieve standardization and miniaturization of measuring instruments, protection devices, and automatic control equipment. Instrument transformers can also be used to isolate high-voltage systems to ensure the safety of personnel and equipment.

[0003] Open-type instrument transformers consist of an upper housing and a lower housing. In some transformers, the upper and lower housings are hinged and snap-fitted together for easy opening and closing and fixation. The upper and lower housings are typically hinged by a snap-fit ​​rod on the lower housing and a C-shaped snap fastener on the upper housing that engages with the snap-fit ​​rod. However, this hinged structure is prone to snap breakage or irreversible deformation during assembly, affecting opening and closing. Furthermore, the snap fasteners also pose a risk of breakage during use. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a transformer housing that is more convenient to open and close than the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an openable transformer housing, including an upper housing and a lower housing, and a rotating rod. The upper housing has a connecting end fixed to the side wall of the rotating rod on its side wall. The lower housing has a protruding base on its side wall. The base has a through hole for the rotating rod to pass through. The through hole has a moving hole for the connecting end to move axially along the through hole and a rotating hole for the connecting end to move circumferentially along the through hole. The rotating hole communicates with the moving hole, and the moving hole communicates with one or both openings of the through hole.

[0006] Using the above scheme, when assembling the upper and lower shells, the rotating rod is aligned with the through hole and the connecting end is aligned with the moving hole. The rotating rod is then moved axially along the through hole until the connecting end is aligned with the rotating hole, which allows the upper shell to rotate relative to the lower shell.

[0007] Compared with existing technologies, this utility model is less prone to breakage or irreversible deformation during assembly, ensuring the opening and closing effect. Furthermore, the connection strength between the upper and lower shells is stronger, ensuring the normal use of this utility model.

[0008] As a further feature of this invention, the rotating rod includes a limiting end disposed at its end, the diameter of which is larger than the diameter of the through hole.

[0009] Using the above scheme, when the limiting end and the through hole form a limiting position, the connecting end is aligned with the rotating hole, which facilitates assembly.

[0010] As a further feature of this utility model, the through hole is a blind hole, and the movable hole is connected to the opening of the through hole; when the end of the rotating rod away from the limiting end abuts against the bottom of the through hole, the limiting end and the opening of the through hole form a limiting.

[0011] The above solution facilitates the assembly of the upper and lower shells.

[0012] As a further feature of this invention, a first protrusion is provided on the wall of the movable hole, the first protrusion is provided at the connection between the movable hole and the rotating hole, and a second protrusion is provided on the connection end, which can form a limiting position with the first protrusion.

[0013] Using the above scheme, it is preferable that the outer walls of both protrusion one and protrusion two are arc-shaped surfaces. During assembly, when the connecting end moves within the moving hole to a position close to the rotating hole, protrusion one and protrusion two abut against each other. The operator needs to apply a certain force to move the connecting end to the position aligned with the rotating hole. Through the cooperation of protrusion one and protrusion two, the connecting end will not detach from the rotating hole unless the upper housing is subjected to a force applied by the operator to move along the axial direction of the rotating rod, thus ensuring the normal practicality of this utility model.

[0014] As a further feature of this invention, the angle between the connection between the movable hole and the rotating hole and the hole wall of the rotating hole away from the movable hole is 150° to 180°.

[0015] The above scheme facilitates the rotation of the upper shell relative to the lower shell.

[0016] As a further feature of this utility model, a locking block is provided on the surface of the lower housing facing away from the base, and a U-shaped locking end is provided on the surface of the upper housing facing away from the connecting end to engage with the locking block.

[0017] The above solution facilitates the fixing of the upper and lower shells.

[0018] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0019] Appendix Figure 1 This is an overall view of a specific embodiment of the present utility model;

[0020] Appendix Figure 2 This is a schematic diagram of the upper shell of a specific embodiment of the present utility model;

[0021] Appendix Figure 3 This is a schematic diagram of the lower shell of a specific embodiment of the present utility model;

[0022] Appendix Figure 4This is a cross-sectional view of the through hole in a specific embodiment of the present invention.

[0023] Upper housing 1, connecting end 11, second protrusion 111, snap-fit ​​end 12, lower housing 2, base 21, through hole 211, moving hole 212, first protrusion 2121, rotating hole 213, snap-fit ​​block 22, rotating rod 3, limiting end 31. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise specified, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They 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.

[0026] Specific embodiments of this utility model are shown in the accompanying drawings.

[0027] An openable transformer housing includes an upper housing 1, a lower housing 2, and a rotating rod 3. The upper housing 1 has a connecting end 11 fixed to the side wall of the rotating rod 3 on its side wall. The lower housing 2 has a protruding base 21 on its side wall. The base 21 has a through hole 211 for the rotating rod 3 to pass through. The through hole 211 has a moving hole 212 for the connecting end 11 to move axially along the through hole 211 and a rotating hole 213 for the connecting end 11 to move circumferentially along the through hole 211. The rotating hole 213 communicates with the moving hole 212. The through hole 211 is a blind hole, and the moving hole 212 communicates with the opening of the through hole 211.

[0028] When assembling the upper housing 1 and the lower housing 2, align the rotating rod 3 with the through hole 211 and the connecting end 11 with the moving hole 212, so that the rotating rod 3 moves along the axial direction of the through hole 211 until the connecting end 11 is aligned with the rotating hole 213, so that the upper housing 1 can rotate relative to the lower housing 2.

[0029] Compared with the prior art, this embodiment is less prone to breakage or irreversible deformation during assembly, ensuring the opening and closing effect. Furthermore, the connection strength between the upper shell 1 and the lower shell 2 is stronger, ensuring the normal use of this embodiment.

[0030] The rotating rod 3 includes a limiting end 31 at its end, the diameter of which is larger than the diameter of the through hole 211. When the limiting end 31 and the through hole 211 form a limiting position, the connecting end 11 is aligned with the rotating hole 213 for easy assembly.

[0031] When the end of the rotating rod 3 away from the limiting end 31 abuts against the bottom of the through hole 211, the limiting end 31 and the opening of the through hole 211 form a limiting position. This facilitates the assembly of the upper shell 1 and the lower shell 2.

[0032] A protrusion 2121 is provided on the wall of the movable hole 212. The protrusion 2121 is located at the connection between the movable hole 212 and the rotating hole 213. The connecting end 11 is provided with a protrusion 2111 that can limit the movement of the protrusion 2121. In this embodiment, the outer walls of both the protrusion 2121 and the protrusion 211 are arc-shaped. During assembly, when the connecting end 11 moves within the movable hole 212 to a position close to the rotating hole 213, the protrusion 2121 and the protrusion 211 abut against each other. The operator needs to apply a certain force to move the connecting end 11 to the position aligned with the rotating hole 213. Through the cooperation of the protrusion 2121 and the protrusion 211, the connecting end 11 will not detach from the rotating hole 213 when the upper housing 1 is not subjected to the force applied by the operator to move along the axial direction of the rotating rod 3, thus ensuring the normal practicality of this embodiment.

[0033] The angle between the connection point of the movable hole 212 and the rotating hole 213 and the wall of the rotating hole 213 away from the movable hole 212 is 180°. This facilitates the rotation of the upper housing 1 relative to the lower housing 2.

[0034] The lower housing 2 has a locking block 22 on the side facing away from the base 21, and the upper housing 1 has a U-shaped locking end 12 on the side facing away from the connecting end 11, which engages with the locking block 22, so as to facilitate the fixing of the upper housing 1 and the lower housing 2.

[0035] This utility model is not limited to the specific embodiments described above. Those skilled in the art can implement this utility model using other specific embodiments based on the content disclosed in this utility model. Any simple changes or modifications made to the design structure and concept of this utility model will fall within the protection scope of this utility model.

Claims

1. An open-type transformer housing comprising an upper housing and a lower housing, characterized in that: It also includes a rotating rod. The side wall of the upper housing is provided with a connecting end that is fixed to the side wall of the rotating rod. The side wall of the lower housing is provided with a protruding base. The base is provided with a through hole for the rotating rod to pass through. The through hole is provided with a moving hole for the connecting end to move axially along the through hole and a rotating hole for the connecting end to move circumferentially along the through hole. The rotating hole communicates with the moving hole, and the moving hole communicates with one or both openings of the through hole.

2. An open-type transformer housing according to claim 1, characterized in that: The rotating rod includes a limiting end at one end, the diameter of which is larger than the diameter of the through hole.

3. An open-type transformer housing according to claim 2, characterized in that: The through hole is a blind hole, and the movable hole is connected to the opening of the through hole; when the end of the rotating rod away from the limiting end abuts against the bottom of the through hole, the limiting end and the opening of the through hole form a limiting.

4. An open-type transformer housing according to claim 3, characterized in that: The movable hole has a first protrusion on its wall. The first protrusion is located at the connection between the movable hole and the rotating hole. The connection end has a second protrusion that can limit the movement of the first protrusion.

5. The openable transformer housing according to claim 4, characterized in that: The angle between the connection point of the movable hole and the rotating hole and the hole wall of the rotating hole away from the movable hole is 150° to 180°.

6. The openable transformer housing according to claim 5, characterized in that: The lower housing has a locking block on the side facing away from the base, and the upper housing has a U-shaped locking end on the side facing away from the connecting end that engages with the locking block.

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