Safety transformer framework suitable for automatic winding

Abstract

The utility model relates to the technical field of transformers, in particular to a safety transformer framework suitable for automatic winding, which comprises a winding framework, the upper end and the lower end of the winding framework are respectively connected with an upper end plate and a lower end plate, the upper surface of the upper end plate is provided with an upper clamping groove, and the upper clamping groove is matched with an upper magnetic core of a transformer magnetic core in a clamping manner. A primary side protrusion and a secondary side protrusion are arranged at the two ends of the lower surface of the lower end plate respectively, a lower clamping groove is formed between the primary side protrusion and the secondary side protrusion, and the lower clamping groove is matched with a lower magnetic core of the transformer magnetic core in a clamping mode. The two ends of the lower end plate are provided with a primary side winding wire duct and a secondary side winding wire duct respectively. The primary side protrusion and the secondary side protrusion are arranged at the two ends of the lower surface of the lower end plate respectively, and the primary side winding wire groove and the secondary side winding wire groove are formed in the two ends of the lower end plate respectively, so that the tin climbing distance of the lead-out wire after tin soldering is increased, it can be guaranteed that the transformer meets the safety standard without installing a sleeve on the lead-out wire, and the transformer is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, and more specifically to a safety transformer frame suitable for automatic winding. Background Art

[0002] At present, some transformers have very strict requirements on safety distance. The conventional methods to solve the problem of transformer safety distance are mainly the following: the first is to increase the outer size of the winding frame; the second is to increase the secondary side base; the third is to use three layers of insulated wire on the secondary side and wrap it with a retaining wall. However, these methods not only increase the size of the transformer and increase the difficulty of winding, but also have low efficiency, resulting in high production costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a safety transformer frame suitable for automatic winding.

[0004] The utility model discloses a safety transformer frame suitable for automatic winding, and the technical solution adopted is:

[0005] A safety transformer skeleton suitable for automated winding comprises a winding skeleton, wherein the upper and lower ends of the winding skeleton are respectively connected to an upper end plate and a lower end plate, an upper clamping groove is provided on the upper surface of the upper end plate, and the upper clamping groove is clamped with an upper magnetic core of a transformer core, and a primary side protrusion and a secondary side protrusion are respectively provided on the two ends of the lower surface of the lower end plate, a lower clamping groove is formed between the primary side protrusion and the secondary side protrusion, and the lower clamping groove is clamped with the lower magnetic core of the transformer core; a primary side winding wire groove and a secondary side winding wire groove are respectively provided at the two ends of the lower end plate, and the primary side winding wire groove and the secondary side winding wire groove are respectively provided corresponding to the primary side pins and the secondary side pins at the two ends of the lower end plate; a plurality of slots are provided on the inner side surface of the center hole of the winding skeleton, and winding positioning pieces can be detachably connected in the center hole and the slots.

[0006] Furthermore, the distance between the secondary side pin and the transformer core is greater than 8 mm.

[0007] Furthermore, the length of the lower end plate is greater than the length of the upper end plate.

[0008] Furthermore, a magnetic core insertion hole is provided at the center of the winding frame, and the upper center column of the upper magnetic core and the lower center column of the lower magnetic core are relatively plugged and matched in the magnetic core insertion hole.

[0009] Furthermore, the magnetic core insertion hole at the center of the winding frame is a circular through hole, and the upper center column of the upper magnetic core and the lower center column of the lower magnetic core are both cylindrical structures.

[0010] Furthermore, a plurality of secondary side pins are evenly arranged on the lower end plate, and a secondary side winding wire slot is provided between two adjacent secondary side pins.

[0011] Furthermore, the winding positioning member includes a positioning tube, a supporting ring is fixed on the positioning tube, the positioning tube slides in the center hole, and a locking part is connected to the positioning tube, and the locking part is plugged and matched in a plurality of slots.

[0012] Furthermore, the locking part includes a center frame fixed to the inner wall of the positioning tube, the middle part of the center frame is threadedly connected to the middle part of the locking screw, the upper end of the locking screw passes through the top of the positioning tube, the lower end of the locking screw is rotatably connected to a lifting ring, the lifting ring is rotatably connected to one end of multiple inclined rods, the other ends of the multiple inclined rods are rotatably connected to multiple sliding inserts one by one, the inner ends of the multiple sliding inserts slide on the multiple transverse guide rods of the center frame, the middle parts of the multiple sliding inserts slide in the multiple transverse sliding holes of the positioning tube, and the outer ends of the multiple sliding inserts are inserted into the multiple slots on the inner side of the center hole of the winding skeleton.

[0013] Furthermore, a compression spring is sleeved on the locking screw, and the compression spring is located between the center frame and the lifting ring.

[0014] Furthermore, the inner end of the sliding insert is open and the outer end is closed; the inner side surface of the closed end of the sliding insert is connected to the cross guide rod via a tensioning spring.

[0015] It can be seen from the above scheme that the utility model is a safety transformer skeleton suitable for automatic winding, by respectively arranging a primary side protrusion and a secondary side protrusion at both ends of the lower surface of the lower end plate, and respectively arranging a primary side winding wire groove and a secondary side winding wire groove at both ends of the lower end plate, thereby increasing the creeping distance of the lead wire after soldering, and the lead wire does not need to be installed with a bushing to ensure that the transformer complies with safety regulations. It has a simple structure and is easy to use. By changing the skeleton structure, it is convenient to fully realize automatic operation of transformer winding without increasing the volume of the transformer. It is also simple to process, saves manpower, and is conducive to improving production and processing efficiency.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 A schematic diagram of a combination of a transformer skeleton and a transformer core in a first direction provided by an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of a second direction;

[0020] Figure 3 for Figure 1 Schematic diagram of the third direction;

[0021] Figure 4 for Figure 1 A schematic diagram of a fourth direction;

[0022] Figure 5 A schematic diagram of a transformer skeleton provided by an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of a transformer core provided by an embodiment of the utility model;

[0024] Figure 7 A partial structural cross-sectional view provided for an embodiment of the utility model;

[0025] Figure 8 A schematic diagram of the structure of a winding positioning member provided in an embodiment of the utility model;

[0026] Fig. 9 A schematic diagram of the structure of a locking portion provided in an embodiment of the utility model;

[0027] Fig.10 A cross-sectional view of a locking portion provided in an embodiment of the utility model.

[0028] Icons: winding skeleton 1; upper end plate 2; lower end plate 3; upper magnetic core 4; lower magnetic core 5; primary side pin 6; secondary side pin 7; winding positioning piece 8; positioning tube 9; supporting ring 10; locking part 11; center frame 12; locking screw 13; lifting ring 14; inclined rod 15; sliding insert 16; compression spring 17; tension spring 18. DETAILED DESCRIPTION

[0029] In order to clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention, it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0031] See also Figure 1-10The utility model discloses a safety transformer skeleton suitable for automatic winding, comprising a winding skeleton 1, the winding skeleton 1 is used for winding winding coils, the upper and lower ends of the winding skeleton 1 are respectively connected to an upper end plate 2 and a lower end plate 3, the upper end plate 2 and the lower end plate 3 provide mechanical support, so that the winding on the winding skeleton 1 can be firmly fixed therein, the upper end plate 2 and the lower end plate 3 are made of solid materials, such as metal or insulating materials, to ensure the stability and reliability of the structure of the entire winding skeleton 1; an upper clamping groove is provided on the upper surface of the upper end plate 2, the upper clamping groove is clamped with the upper magnetic core 4 of the transformer core, and a primary side protrusion and a secondary side protrusion are respectively provided at the two ends of the lower surface of the lower end plate 3, a lower clamping groove is formed between the primary side protrusion and the secondary side protrusion, and the lower clamping groove is clamped with the lower magnetic core 5 of the transformer core, so as to facilitate the winding skeleton 1, the upper end plate 2 The connection and installation between the lower end plate 3 and the transformer core can be carried out after installation, and the upper core 4 and the lower core 5 of the transformer core can be fixed; the primary winding wire groove and the secondary winding wire groove are respectively arranged at the two ends of the lower end plate 3, and the primary winding wire groove and the secondary winding wire groove are respectively arranged corresponding to the primary side pin 6 and the secondary side pin 7 at the two ends of the lower end plate 3, so as to play the role of gathering and guiding the lead wires to prevent the lead wires from being cross-entangled; a plurality of slots are arranged on the inner side surface of the center hole of the winding skeleton 1, and a winding positioning piece 8 can be detachably connected in the center hole and the slot. When winding is required, it can be connected to the winding machine through the winding positioning piece 8, so as to carry out winding processing on the whole of the present invention. After winding, the winding positioning piece 8 can be separated from the winding skeleton 1. The winding positioning piece 8 and the winding skeleton 1 adopt a structure that is easy to disassemble and connect, and has strong practicality. In a safety transformer skeleton suitable for automatic winding of the utility model, a primary side protrusion and a secondary side protrusion are respectively arranged at both ends of the lower surface of the lower end plate 3, and a primary side winding wire groove and a secondary side winding wire groove are respectively arranged at both ends of the lower end plate 3, thereby increasing the creeping distance of the lead wire after soldering, the secondary side lead wire adopts a three-layer insulated wire wrapped with tape, and the lead wire does not need to be installed with a casing to ensure that the transformer complies with safety regulations. The utility model has a simple structure and is easy to use. By changing the skeleton structure, it is convenient to realize fully automatic operation of transformer winding without increasing the volume of the transformer, and the processing is simple, saving manpower, which is conducive to improving production and processing efficiency.

[0032] The distance between the secondary side pin 7 and the transformer core is greater than 8 mm. A distance greater than 8 mm helps to provide better electrical insulation and safety. It can reduce the risk of potential electrical contact and short circuit between the secondary side pin 7 and the transformer core, and reduce the possibility of electrical energy leakage that may occur during transformer operation.

[0033] The length of the lower end plate 3 is greater than that of the upper end plate 2. The length of the lower end plate 3 is greater than that of the upper end plate 2, which can increase the structural stability of the winding skeleton 1. By increasing the length of the lower end plate 3, a larger support area and rigidity can be provided, making the entire winding skeleton 1 more solid and stable, and reducing the possibility of deformation and vibration.

[0034] A magnetic core insertion hole is provided at the center of the winding frame 1, and an upper center column of the upper magnetic core 4 and a lower center column of the lower magnetic core 5 are relatively plugged and matched in the magnetic core insertion hole.

[0035] The magnetic core insertion hole at the center of the winding frame 1 is a circular through hole, and the upper center column of the upper magnetic core 4 and the lower center column of the lower magnetic core 5 are both cylindrical structures.

[0036] A plurality of secondary pins 7 are evenly arranged on the lower end plate 3 , and a secondary winding wire groove is provided between two adjacent secondary pins 7 to facilitate the guiding of the lead wires.

[0037] The winding positioning member 8 comprises a positioning tube 9, on which a supporting ring 10 is fixed. The positioning tube 9 slides in the center hole. A locking portion 11 is connected to the positioning tube 9, and the locking portion 11 is plugged and matched in a plurality of slots.

[0038] When winding is needed, the positioning tube 9 is inserted into the center hole of the winding skeleton 1, and supported on the bottom of the lower end plate 3 through the supporting ring 10, and then the locking part 11 is controlled to be plugged into the multiple slots to achieve a stable connection between the winding positioning piece 8 and the winding skeleton 1. At this time, the winding positioning piece 8 is installed on the winding machine to facilitate the winding work of the winding skeleton 1 inside the utility model. After the winding is completed, the locking part 11 is controlled to disengage from the multiple slots.

[0039] The locking portion 11 includes a center frame 12 fixed to the inner wall of the positioning tube 9, the middle part of the center frame 12 is threadedly connected to the middle part of the locking screw 13, the upper end of the locking screw 13 passes through the top of the positioning tube 9, the lower end of the locking screw 13 is rotatably connected to the lifting ring 14, the lifting ring 14 is rotatably connected to one end of multiple inclined rods 15, and the other ends of the multiple inclined rods 15 are rotatably connected to multiple sliding inserts 16 one by one, the inner ends of the multiple sliding inserts 16 slide on the multiple transverse guide rods of the center frame 12, the middle parts of the multiple sliding inserts 16 slide in the multiple transverse sliding holes of the positioning tube 9, and the outer ends of the multiple sliding inserts 16 are inserted into the multiple slots on the inner side of the center hole of the winding skeleton 1.

[0040] When the locking portion 11 is controlled to be inserted and matched in the multiple slots, the relative positions of the positioning tube 9 and the winding skeleton 1 are first adjusted so that the outer ends of the multiple sliding inserts 16 correspond to the multiple slots on the inner side of the central hole of the winding skeleton 1, and then the locking screw 13 is rotated to change the contact position between the locking screw 13 and the center frame 12, so that the lifting ring 14 can be driven to move up and down by the locking screw 13. When the lifting ring 14 is controlled to move in the direction of the center frame 12, the lifting ring 14 can drive one end of the multiple inclined rods 15 connected to it to move upward, and the other end of the multiple inclined rods 15 drives the multiple sliding inserts 16 to move in the multiple transverse guides of the center frame 12. The rod moves in the direction away from the center frame 12. At this time, multiple sliding inserts 16 are inserted into multiple slots on the inner side of the center hole of the winding skeleton 1, and the positioning tube 9 is inserted into the center hole of the winding skeleton 1 to define the longitudinal position of the locking part 11 and the winding skeleton 1. Multiple sliding inserts 16 are inserted into multiple slots on the inner side of the center hole of the winding skeleton 1 to define the lateral position of the locking part 11 and the winding skeleton 1, thereby achieving a stable connection between the locking part 11 and the winding skeleton 1, which is convenient for winding work, and its disassembly and installation are very convenient, the stability is good during winding, and it is convenient to improve the tightness of the winding.

[0041] A compression spring 17 is sleeved on the locking screw 13, and the compression spring 17 is located between the center frame 12 and the lifting ring 14. When the lifting ring 14 moves toward the center frame 12, the compression spring 17 can be compressed, thereby improving the stability of the lifting ring 14 after moving toward the center frame 12, and finally improving the stability of the multiple sliding inserts 16 inserted into the multiple slots on the inner side of the center hole of the winding skeleton 1.

[0042] The inner end of the sliding insert 16 is open and the outer end is closed; the inner side surface of the closed end of the sliding insert 16 is connected to the cross guide rod through a tensioning spring 18, which is beneficial to improve the stability between the sliding insert 16 and the cross guide rod and prevent loosening during the winding process.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A safety transformer frame suitable for automatic winding, characterized in that: The invention comprises a winding skeleton (1), wherein the upper and lower ends of the winding skeleton (1) are respectively connected to an upper end plate (2) and a lower end plate (3); an upper clamping groove is provided on the upper surface of the upper end plate (2), and the upper clamping groove is clamped with an upper magnetic core (4) of a transformer magnetic core; a primary side protrusion and a secondary side protrusion are respectively provided on the two ends of the lower surface of the lower end plate (3); a lower clamping groove is formed between the primary side protrusion and the secondary side protrusion, and the lower clamping groove is clamped with a lower magnetic core (5) of the transformer magnetic core; a primary side winding wire groove and a secondary side winding wire groove are respectively provided on the two ends of the lower end plate (3), and the primary side winding wire groove and the secondary side winding wire groove are respectively provided corresponding to the primary side pin (6) and the secondary side pin (7) at the two ends of the lower end plate (3); a plurality of slots are provided on the inner side surface of the central hole of the winding skeleton (1), and winding positioning pieces (8) are detachably connected in the central hole and the slots.

2. The safety transformer skeleton suitable for automatic winding according to claim 1, characterized in that: The distance between the secondary side pin (7) and the transformer magnetic core is greater than 8 mm.

3. The safety transformer skeleton suitable for automatic winding according to claim 1 is characterized in that: The length of the lower end plate (3) is greater than the length of the upper end plate (2).

4. The safety transformer skeleton suitable for automatic winding according to claim 1, characterized in that: A magnetic core insertion hole is provided at the center of the winding frame (1), and an upper center column of the upper magnetic core (4) and a lower center column of the lower magnetic core (5) are relatively plugged and matched in the magnetic core insertion hole.

5. The safety transformer skeleton suitable for automatic winding according to claim 4, characterized in that: The magnetic core insertion hole at the center of the winding frame (1) is a circular through hole, and the upper center column of the upper magnetic core (4) and the lower center column of the lower magnetic core (5) are both cylindrical structures.

6. The safety transformer skeleton suitable for automatic winding according to claim 1, characterized in that: A plurality of secondary side pins (7) are evenly arranged on the lower end plate (3), and a secondary side winding wire slot is provided between two adjacent secondary side pins (7).

7. The safety transformer skeleton suitable for automatic winding according to claim 1, characterized in that: The winding positioning member (8) comprises a positioning tube (9), a supporting ring (10) is fixed on the positioning tube (9), the positioning tube (9) slides in the center hole, a locking portion (11) is connected to the positioning tube (9), and the locking portion (11) is plugged into and fitted in a plurality of slots.

8. The safety transformer skeleton suitable for automatic winding according to claim 7, characterized in that: The locking portion (11) comprises a center frame (12) fixed to the inner wall of the positioning tube (9), the middle part of the center frame (12) is threadedly connected to the middle part of the locking screw (13), the upper end of the locking screw (13) passes through the top of the positioning tube (9), the lower end of the locking screw (13) is rotatably connected to a lifting ring (14), the lifting ring (14) is rotatably connected to one end of a plurality of inclined rods (15), the other ends of the plurality of inclined rods (15) are rotatably connected to a plurality of sliding inserts (16) one by one, the inner ends of the plurality of sliding inserts (16) slide on a plurality of transverse guide rods of the center frame (12), the middle parts of the plurality of sliding inserts (16) slide in a plurality of transverse sliding holes of the positioning tube (9), and the outer ends of the plurality of sliding inserts (16) are inserted into a plurality of slots on the inner side of the center hole of the winding skeleton (1).

9. The safety transformer skeleton suitable for automatic winding according to claim 8, characterized in that: A compression spring (17) is sleeved on the locking screw (13), and the compression spring (17) is located between the center frame (12) and the lifting ring (14).

10. The safety transformer skeleton suitable for automatic winding according to claim 9, characterized in that: The inner end of the sliding insert (16) is open and the outer end is closed; the inner side surface of the closed end of the sliding insert (16) is connected to the cross guide rod via a tensioning spring (18).

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