Novel transformer pin structure
By improving the transformer pin structure and adopting a clamp and protective box design, the problems of small contact area and easy corrosion were solved, achieving low resistance, fast installation and efficient maintenance, and extending the equipment life.
Patent Information
- Application Number
- CN202522460432.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-11-20
AI Technical Summary
The limited contact area of existing transformer pin structures leads to increased resistance, localized temperature rise, low installation and maintenance efficiency, and easy corrosion and damage to the structure.
Two clamps are used to lock together by a bolt group. An adjuster is installed in the clamp. The clamp and bolt group are fitted with a protective box. The clamp consists of a clamping section and a plug-in section. The protective box has a sealing function and is protected by insulating materials and sealing gaskets.
It increases the contact area, reduces resistance and localized heating, simplifies installation steps, improves maintenance efficiency, prevents corrosion, and extends service life.
Smart Images
Figure CN223728582U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field, concretely is novel transformer pin structure. BACKGROUND
[0002] Please refer to Figure 1 , the existing cable and transformer butt joint, it is realized through pin structure, pin structure mainly includes two pairs of clamps, the end of clamping close to each other all is fixedly installed with the link plate, the opening side of clamping is fixedly installed with a pair of ear plate, and the ear plate all is set with a pair of through -hole, and the through -hole of alignment is locked through bolt group, thereby the conductor of one clamp is connected with cable, another clamp is connected with the pin of transformer, and two link plates are connected and fixed through two pairs of bolt group.
[0003] The existing problems are: the contact area of two link plates is limited, which can cause the increase of resistance and the increase of local temperature; the operation amount of the link plate connected by two pairs of bolt group is large, and the installation and maintenance efficiency is low; and the structure is exposed to the environment, and the parts are easy to rust and damage.
[0004] Therefore, in order to solve the above problems, a novel transformer pin structure is provided. CONTENT OF UTILITY MODEL
[0005] The utility model aims at providing novel transformer pin structure, butt joint area is big, convenient operation, and has the isolation effect, so as to solve the problem put forward in the above background technology.
[0006] In order to achieve the above object, the utility model provides the following technical scheme:
[0007] Novel transformer pin structure, including two clamps that are inserted and installed together, each clamp is locked by a pair of bolt group, and the bolt group is installed with an adjuster between the two clamps close to each other, the bolt group, clamp and adjuster are provided with the same protection box;The clamp includes an ear plate and a variable diameter pipe, a through groove is formed in the side of the variable diameter pipe along the axial direction, the ear plate is fixedly installed on both sides of the through groove, the ear plate is provided with a pair of through holes for passing through the bolt group, and the variable diameter pipe is integrally processed by the clamping section and the insertion section connected at the end.
[0008] Specifically, the clamping section is straight cylindrical, and the inner diameter of the insertion section close to the clamping section is smaller than the inner diameter of the clamping section.
[0009] Specifically, the angle between the side surface of the insertion section and the axis is 1°, the top inner diameter of the insertion section is smaller than the bottom inner diameter, and the lower insertion section is inserted in the inside of the upper insertion section when the adjuster is tensioned.
[0010] Specific, the protection box includes box body, buckle ring and hook, the number of box body is two and is hinged through the hinge, the both ends of box body are both communicated and install arc-shaped support, the side wall of one of box body away from the hinge is fixedly installed with hook, the side wall of another box body away from the hinge is fixedly installed with buckle ring, the hook is clamped with buckle ring when two box bodies are buckled.
[0011] Specific, the protection box further includes sealing gasket and sealing ring, the circumferential inner side of arc-shaped support is fixedly installed with sealing gasket, and the buckling surface of one of box body is fixedly installed with sealing ring.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] Through the plug-in mode of two plug-in sections large-area contact, the resistance can be reduced, and the local heating is reduced, the regulator is used to replace the traditional double bolt group connection, the installation steps can be simplified, and the installation and maintenance efficiency is improved, in addition, the protection measures of the sealing butt joint of the protection box can isolate the erosion of external environment, and delay the rusting and aging of parts. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the front view of the existing transformer pin structure;
[0015] Figure 2 It is the front view of the utility model assembly;
[0016] Figure 3 It is the section view of the utility model clamp part;
[0017] Figure 4 It is the schematic view of the utility model protection box.
[0018] In the drawing: 1 bolt group, 2 clamp, 21 ear plate, 22 clamping section, 23 plug-in section, 3 regulator, 4 protection box, 41 sealing ring, 42 buckle ring, 43 arc-shaped support, 44 sealing gasket, 45 hook, 46 box body. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0020] Embodiment content:
[0021] Please refer to Figure 2The utility model provides a novel transformer pin structure, including two clamps 2 installed together in the plug, each clamp 2 is locked through a pair of bolt group 1, each pair of bolt group 1 is symmetrically distributed up and down, and bolt group 1 is the existing component that is composed of bolt, nut and gasket, one clamp 2 is used to clamp the conductor of cable, and the other clamp 2 is used to connect the pin of transformer.
[0022] Adjuster 3 is installed between the bolt group 1 of the two clamps 2 close to each other, and adjuster 3 is made of insulating material, for example epoxy resin-based composite material, and adjuster 3 is the existing component that is composed of adjusting tube, lifting ring, locking nut and the like, the number of lifting rings is two, and each lifting ring is fixedly installed with a screw rod, the screw threads of the two screw rods are opposite, and screw holes for screwing screw rods are formed at both ends of the adjusting tube, and the two lifting rings are moved towards each other or away from each other by screwing the adjusting tube, a pushing force or a pulling force is applied between the two bolt groups 1, and the distance between the two clamps 2 is adjusted, and after the distance is adjusted, the locking nut on the screw rod is locked against the adjusting tube.
[0023] In addition, the bolt group 1, the clamp 2 and the adjuster 3 are sleeved with the same protective box 4, the protective box 4 plays an isolation protection role, avoids the erosion and damage of the external environment to the components, ensures the connection strength, and also facilitates disassembly and maintenance during maintenance.
[0024] Please refer to Figure 3 The structure of the clamp 2 is as follows:
[0025] The material of the clamp 2 is preferably aluminum alloy, and the clamp 2 includes an ear plate 21 and a variable-diameter tube, one side of the variable-diameter tube is provided with a through groove along the axial direction, the two sides of the through groove are fixedly installed with the ear plate 21, and the ear plate 21 is provided with a pair of through holes for passing through the bolt group 1; the through groove is provided so that the variable-diameter tube can have a certain opening and closing amplitude, which is beneficial to sleeving on the conductor and the pin, and the two side ear plates 21 can be locked by the bolt group 1 installed in the through hole.
[0026] The variable-diameter tube is integrally processed from the clamping section 22 and the plug-in section 23 connected at the end, which can ensure the uniformity of the wall thickness and the use strength.
[0027] The clamping section 22 is a straight cylinder, and the inner diameter of the plug-in section 23 close to the clamping section 22 is smaller than that of the clamping section 22; the clamping section 22 is used for plug-in connection with the conductor and the pin, and the plug-in section 23 with the smaller inner diameter than the clamping section 22 also has a limiting effect, which is convenient to know whether the plug-in is sufficient.
[0028] The included angle between the side surface of the plug-in section 23 and the axis is 1°, and the inner diameter of the top of the plug-in section 23 is smaller than that of the bottom, and the lower plug-in section 23 is inserted into the inside of the upper plug-in section 23 when the adjuster 3 is tensioned, and such shape setting is beneficial to the plug-in cooperation of the plug-in section 23; and the contact area after plug-in is large, which effectively reduces the resistance value and temperature at the butt joint.
[0029] Please refer to Figure 4 , the structure of the protective box 4:
[0030] The protective box 4 includes two box bodies 46 hinged by a hinge, and an arc-shaped bracket 43 is installed on both ends of the box body 46. One of the box bodies 46 is fixedly installed with a clasp 45 on the side wall away from the hinge, and the other box body 46 is fixedly installed with a buckle 42 on the side wall away from the hinge. The clasp 45 is clamped with the buckle 42 when the two box bodies 46 are buckled.
[0031] When the two box bodies 46 are buckled, a complete isolation box is formed, and when the two arc-shaped brackets 43 are buckled, a complete isolation ring is formed. The clasp 45 has elasticity and can avoid opening the box body 46 when clamped in the buckle 42. Only when the clasp 45 is manually pushed back to separate it from the buckle 42 can the box body 46 be opened, which is convenient for installation and disassembly.
[0032] The protective box 4 also includes a sealing gasket 44 and a sealing ring 41. The sealing gasket 44 is fixedly installed on the inner side of the circumference of the arc-shaped bracket 43, and the sealing ring 41 is fixedly installed on the buckling surface of one of the box bodies 46. When the two box bodies 46 are buckled, the sealing gasket 44 is used to contact the conductor and the pin, and the sealing ring 41 is located between the buckling surfaces of the two box bodies 46 to improve the performance of sealing and isolation.
[0033] Working principle of the embodiment:
[0034] Preparation: The cable end is stripped to expose the conductor, the conductor is inserted into the clamping section 22 of the upper clamp 2 until it reaches the upper end of the upper insertion section 23, and the two bolt groups 1 are installed and locked after ensuring the insertion depth.
[0035] Insert the pin into the clamping section 22 of the lower clamp 2 until it reaches the lower end of the lower insertion section 23, and install the two bolt groups 1 after ensuring the insertion depth.
[0036] The regulator 3 is in the initial state of long distance, and the lifting rings at both ends of the regulator 3 are pressed during the installation of the bolt group 1, and the pre-insertion of the upper insertion section 23 and the lower insertion section 23 is completed.
[0037] Main assembly: By rotating the adjusting pipe in the regulator 3, the two lifting rings are moved closer to each other, a pulling force is applied between the two bolt groups 1, and the purpose of shortening the distance between the two clamps 2 is achieved until the two insertion sections 23 are tightly inserted.
[0038] After the adjustment is completed, the locking nut in the regulator 3 is tightly locked with the adjusting pipe.
[0039] Isolation and protection: Install the protective box 4 outside the bolt group 1, the clamp 2 and the regulator 3.
[0040] The connecting strength is ensured, the quick dismounting is realized, and the reliability, durability and service life of the transformer pin structure are effectively improved.
[0041] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be regarded as limiting the claims to which they relate.
[0042] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A new transformer pin configuration, characterized by: The utility model provides a kind of two clamps (2) of plug-in installation, each described clamp (2) is locked by a pair of bolt group (1), adjusting device (3) is installed between mutually close bolt group (1) in two described clamps (2), bolt group (1), clamp (2) and adjusting device (3) are covered with same protective box (4);Described clamp (2) includes lug plate (21) and reducing pipe, one side of the reducing pipe is opened with through slot along axial direction, both sides of the through slot are fixedly installed with lug plate (21), the lug plate (21) is opened with a pair of through hole for passing bolt group (1), the reducing pipe is integrally processed by end connection clamping section (22) and plug-in section (23).
2. The novel transformer pin configuration according to claim 1, characterized in that: The clamping section (22) is straight cylinder, the inner diameter of the plug-in section (23) close to the clamping section (22) is less than the inner diameter of the clamping section (22).
3. The novel transformer pin configuration according to claim 2, characterized in that: The angle between the side surface of the plug-in section (23) and the axis is 1°, and the top inner diameter of the plug-in section (23) is less than the bottom inner diameter, the lower plug-in section (23) is inserted in the inside of the upper plug-in section (23) when the adjusting device (3) is tensioned.
4. The novel transformer pin configuration according to claim 1, characterized in that: The protective box (4) includes box body (46), buckle ring (42) and clamping hook (45), the number of the box body (46) is two and is hinged by hinge, arc-shaped support (43) is installed at both ends of the box body (46) in communication, the side wall of one of the box body (46) away from the hinge is fixedly installed with clamping hook (45), the side wall of another of the box body (46) away from the hinge is fixedly installed with buckle ring (42), the clamping hook (45) and the buckle ring (42) are clamped when two box body (46) are buckled.
5. The novel transformer pin configuration according to claim 4, characterized in that: The protective box (4) further includes sealing gasket (44) and sealing ring (41), the circumferential inner side of the arc-shaped support (43) is fixedly installed with sealing gasket (44), the sealing ring (41) is fixedly installed on the buckling surface of one of the box body (46).