Transformer structure

Abstract

The utility model discloses a transformer structure which comprises a framework, a first E-shaped magnetic core, a second E-shaped magnetic core, a protection piece and a coil winding arranged on the framework. Each of the first E-shaped magnetic core and the second E-shaped magnetic core comprises a magnetic core body, a middle column and eccentric columns arranged on two side edges of the middle column which are integrally arranged, the middle columns of the first E-shaped magnetic core and the second E-shaped magnetic core respectively extend into the connecting holes of the framework, and first epoxy resin glue is arranged between the middle columns of the first E-shaped magnetic core and the second E-shaped magnetic core; the first E-shaped magnetic core and the second E-shaped magnetic core are detachably sleeved with the protection piece. The upper protective sleeve is matched with the lower protective sleeve through the matching of the connecting convex part and the connecting groove; therefore, the noise generated when the transformer works is greatly reduced, the use stability of the coil is ensured, the use effect is improved, the structural design is ingenious and reasonable, the service life of the transformer is prolonged, the usability is good, the application range is wide, and therefore the fixing effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technology of transformers, and in particular to a transformer structure. Background Art

[0002] At present, transformers are essential devices in life and industrial production. The existence of transformers is becoming increasingly important. While emphasizing functionality, the structural rationality of transformers also needs to be considered; the design and use of transformers are particularly important. It can convert the alternating current and high-voltage mains commonly used in external circuits into low-voltage direct current for some low-power devices. The coils of traditional transformers are all single-layer designed. In different application scenarios, transformers with high power are required. For the current single-layer coil transformers with the same magnetic core material, when higher power requirements are put forward, the height of the coil will increase accordingly, and the volume of the product will also become larger.

[0003] In the prior art, a transformer with a double-layer structure has emerged on the market. It positions a winding frame equipped with a coil on another skeleton equipped with a coil, and assembles and connects the two through a fixing structure to achieve the high-power design of the transformer; however, when the transformer is used for a long time, the fixing effect of the skeleton on the magnetic core gradually weakens, easily causing the magnetic core to fall off and affecting the operation of the transformer. In addition, the outside of the skeleton does not have a protection mechanism, making the coil wound on the skeleton exposed, with a poor protection effect on the coil, and the coil is easily damaged during actual use.

[0004] Secondly, since the three magnetic core columns of the two magnetic cores are in contact correspondingly, when the transformer is working, the two magnetic cores will vibrate, resulting in collisions between the contact surfaces of the two magnetic cores, thereby generating noise and affecting the use effect of the transformer.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the Utility Model

[0006] In view of this, in view of the deficiencies existing in the prior art, the main purpose of the present utility model is to provide a transformer structure, which effectively solves the problem that the coil wound on the skeleton in the traditional technology is exposed, with a poor protection effect on the coil, and the coil is easily damaged during actual use through the structural design among the first E-shaped magnetic core, the second E-shaped magnetic core and the protective member.

[0007] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0008] A transformer structure includes a skeleton, a first E-shaped magnetic core, a second E-shaped magnetic core, a protective member and a wire-wound winding arranged on the skeleton;

[0009] A connection hole for the central leg of the E-shaped core to pass through is provided on the skeleton; both the first E-shaped core and the second E-shaped core include a core body integrally provided, a central leg, and offset legs provided on both sides of the central leg. The central legs of the first E-shaped core and the second E-shaped core respectively extend into the connection holes of the skeleton, and a first epoxy resin adhesive is provided between the central legs of the first E-shaped core and the second E-shaped core;

[0010] The protective member is detachably sleeved outside the first E-shaped core and the second E-shaped core; the protective member includes an upper protective sleeve and a lower protective sleeve. A connecting convex portion is provided at one end of the upper protective sleeve close to the first E-shaped core, and a connecting groove for fitting with the connecting convex portion is provided at one end of the lower protective sleeve close to the second E-shaped core. The upper protective sleeve is adapted to the lower protective sleeve through the cooperation of the connecting convex portion and the connecting groove.

[0011] As a preferred solution, the first E-shaped core and the second E-shaped core are arranged vertically opposite to form a structure in the shape of the Chinese character 'ri'.

[0012] As a preferred solution, a second epoxy resin adhesive is provided between the inner side of the upper end face and / or the lower end face of the core body and the outer side of the upper end face and / or the lower end face of the skeleton; a third epoxy resin adhesive is provided between the inner side surface of the offset leg and the left and right outer sides of the wire coil winding. With the structural design of the second epoxy resin adhesive and the third epoxy resin adhesive, the connection stability between the first E-shaped core, the second E-shaped core, and the wire coil winding of the skeleton is further improved.

[0013] As a preferred solution, the skeleton includes a main body portion; the main body portion is arranged inside the protective member, and the wire coil winding is wound around the main body portion and surrounds the portions of the first E-shaped core and the second E-shaped core embedded in the main body portion.

[0014] As a preferred solution, a first PIN position, a second PIN position, a third PIN position, a fourth PIN position, and a fifth PIN position are provided at left and right intervals at the bottom of the main body portion. The first PIN position, the second PIN position, the third PIN position, and the fifth PIN position all retain pins and are exposed outside the protective member, and the fourth PIN position is cut short and does not exceed the bottom end face of the main body portion.

[0015] As a preferred solution, the outer peripheral surface of the first E-shaped core is completely covered with a first insulating tape; the outer peripheral surface of the second E-shaped core is completely covered with a second insulating tape.

[0016] As a preferred solution, heat dissipation layers are provided on the outside of both the upper protective sleeve and the lower protective sleeve.

[0017] As a preferred solution, a plurality of heat dissipation holes are provided on the heat dissipation layer.

[0018] As a preferred solution, the heat dissipation layer is heat dissipation silica gel; silica gel has good heat resistance and thermal conductivity, and the heat dissipation layer is provided with heat dissipation holes, which can effectively dissipate heat.

[0019] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it is mainly through the structural design of the protective protector, the protective protector is detachably sleeved outside the first E-type magnetic core and the second E-type magnetic core; the upper protective sleeve is matched with the lower protective sleeve through the matching of the connecting protrusion and the connecting groove; in this way, the outer sides of the first E-type magnetic core, the second E-type magnetic core and the skeleton can be strengthened to enhance the fixing effect, and at the same time, the protective protector can protect the wire winding wound on the skeleton to avoid damage to the wire winding;

[0020] Secondly, a first epoxy resin glue is arranged between the middle columns of the first E-type magnetic core and the second E-type magnetic core to play a role in buffering and noise reduction, reduce the contact area of the two magnetic cores, and greatly reduce the noise generated when the transformer is working, thereby ensuring the stability of the coil and improving the use effect. The structural design is ingenious and reasonable, which prolongs the service life of the transformer, has good usability and a wide range of applications.

[0021] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0023] Figure 2 It is an exploded view of an embodiment of the utility model;

[0024] Figure 3 This is a structural diagram of a protective member according to an embodiment of the utility model;

[0025] Figure 4 It is a structural diagram of a first E-type magnetic core and a second E-type magnetic core according to an embodiment of the present utility model.

[0026] Description of the accompanying drawings:

[0027] 10. Skeleton 11. First PIN position

[0028] 12. Second PIN digit 13. Third PIN digit

[0029] 14. Fifth PIN position 15. Pin

[0030] 20. First E-type magnetic core 30. Second E-type magnetic core

[0031] 21. Magnetic core 22. Middle column

[0032] 23. Partial column 24. First epoxy resin glue

[0033] 25. Second epoxy resin glue 26. Third epoxy resin glue

[0034] 40. Protective component 41. Upper protective sleeve

[0035] 42. Lower protective sleeve 411. Connecting convex part

[0036] 412. Upper cavity 421. Connecting groove

[0037] 422. Lower cavity 423. Relief hole

[0038] 43. Heat dissipation layer 44. Heat dissipation hole

[0039] 50. Coil winding. Detailed implementation manner

[0040] Please refer to Figures 1 to 4 as shown, which shows the specific structure of the embodiment of the present utility model.

[0041] In the description of the present utility model, it should be noted that for orientation terms, such as terms "upper", "lower", "front", "rear", "left", "right", etc., indicating orientation and position relationships are based on the orientation or position relationships shown in the drawings or during normal wearing and use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0042] A transformer structure includes a skeleton 10, a first E-shaped magnetic core 20, a second E-shaped magnetic core 30, a protective component 40, and a coil winding 50.

[0043] A connecting hole for the middle column 22 of the E-shaped magnetic core to pass through is provided on the skeleton 10; preferably, the skeleton 10 includes a main body part; the main body part is arranged inside the protective component 40, the coil winding 50 is wound around the main body part, and surrounds the parts of the first E-shaped magnetic core 20 and the second E-shaped magnetic core 30 embedded in the main body part. Preferably, first PIN positions 11, second PIN positions 12, third PIN positions 13, fourth PIN positions, and fifth PIN positions 14 are provided at left and right intervals at the bottom of the main body part. The first PIN positions 11, second PIN positions 12, third PIN positions 13, and fifth PIN positions 14 all retain pins 15 and are exposed outside the protective component 40, and the fourth PIN position is cut short and does not exceed the bottom end face of the main body part.

[0044] The first E-type magnetic core 20 and the second E-type magnetic core 30 each include an integrally arranged magnetic core body 21, a middle column 22, and side columns 23 arranged on both sides of the middle column 22. The middle columns 22 of the first E-type magnetic core 20 and the second E-type magnetic core 30 extend into the connection holes of the frame 10 respectively, and a first epoxy resin glue 24 is arranged between the middle columns 22 of the first E-type magnetic core 20 and the second E-type magnetic core 30.

[0045] Preferably, a second epoxy resin glue 25 is arranged between the inner side of the upper end face and / or the lower end face of the magnetic core body 21 and the outer side of the upper end face and / or the lower end face of the skeleton 10; a third epoxy resin glue 26 is arranged between the inner side face of the partial column 23 and the left and right outer sides of the wire winding group 50. The structural design of the second epoxy resin glue 25 and the third epoxy resin glue 26 further improves the connection stability between the first E-type magnetic core 20, the second E-type magnetic core 30, and the wire winding group 50 of the skeleton 10.

[0046] Preferably, the first E-shaped magnetic core 20 and the second E-shaped magnetic core 30 are arranged opposite to each other in a vertical direction to form a Japanese-shaped structure. Preferably, the outer peripheral surface of the first E-shaped magnetic core 20 is completely covered with a first insulating tape; the outer peripheral surface of the second E-shaped magnetic core 30 is completely covered with a second insulating tape.

[0047] The protective member 40 is detachably mounted on the first E-type magnetic core 20 and the second E-type magnetic core 30; the protective member 40 includes an upper protective sleeve 41 and a lower protective sleeve 42, wherein the upper protective sleeve 41 is provided with a connection protrusion 411 at one end close to the first E-type magnetic core 20, and the lower protective sleeve 42 is provided with a connection groove 421 for matching with the connection protrusion 411 at one end close to the second E-type magnetic core 30, and the upper protective sleeve 41 is matched with the lower protective sleeve 42 through the matching of the connection protrusion 411 and the connection groove 421. The lower protective sleeve 42 is provided with clearance holes 423 at the positions corresponding to the first PIN position 11, the second PIN position 12, the third PIN position 13, the fourth PIN position, and the fifth PIN position 14. The upper protective sleeve 41 has an upper cavity 412 , and the lower protective sleeve 42 has a lower cavity 422 . The upper protective sleeve 41 is connected to the lower protective sleeve 42 to form a receiving cavity for covering the frame 10 , the first E-type magnetic core 20 and the second E-type magnetic core 30 .

[0048] Preferably, a heat dissipation layer 43 is provided on the outside of the upper protective cover 41 and the lower protective cover 42. Preferably, a plurality of heat dissipation holes 44 are provided on the heat dissipation layer 43. The plurality of heat dissipation holes 44 are respectively connected to the corresponding upper cavity 412 or the lower cavity 422. Preferably, the heat dissipation layer 43 is heat dissipation silica gel; silica gel has good heat resistance and thermal conductivity, and the heat dissipation holes 44 on the heat dissipation layer 43 can effectively dissipate heat.

[0049] The design focus of the present utility model lies in that mainly through the structural design of the protective member, the protective member is detachably sleeved outside the first E-shaped magnetic core and the second E-shaped magnetic core; the upper protective sleeve is adapted to the lower protective sleeve through the cooperation of the connecting convex part and the connecting groove; thus, the outside of the first E-shaped magnetic core, the second E-shaped magnetic core and the skeleton can be strengthened, so as to enhance the fixing effect, and at the same time, the protective member can protect the wire-wound winding on the skeleton to avoid damage to the wire-wound winding;

[0050] Secondly, there is a first epoxy resin glue arranged between the middle columns of the first E-shaped magnetic core and the second E-shaped magnetic core to play a role in buffering and noise reduction, reduce the contact surface between the two magnetic cores, greatly reduce the noise generated when the transformer works, ensure the use stability of the coil, improve the use effect, the structural design is ingenious and reasonable, extend the service life of the transformer, have good usability and wide application range.

[0051] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A transformer structure, characterized in that: It includes a skeleton, a first E-shaped magnetic core, a second E-shaped magnetic core, a protective component, and a wire coil winding arranged on the skeleton; A connection hole for the central column of the E-shaped magnetic core to pass through is provided on the skeleton; both the first E-shaped magnetic core and the second E-shaped magnetic core include a magnet core body integrally provided, a central column, and offset columns arranged on both sides of the central column. The central columns of the first E-shaped magnetic core and the second E-shaped magnetic core respectively extend into the connection holes on the skeleton, and a first epoxy resin glue is provided between the central columns of the first E-shaped magnetic core and the second E-shaped magnetic core; The protective component is detachably sleeved outside the first E-shaped magnetic core and the second E-shaped magnetic core; the protective component includes an upper protective sleeve and a lower protective sleeve. A connection convex part is provided at one end of the upper protective sleeve close to the first E-shaped magnetic core, and a connection groove for matching with the connection convex part is provided at one end of the lower protective sleeve close to the second E-shaped magnetic core. The upper protective sleeve is adapted to the lower protective sleeve through the cooperation of the connection convex part and the connection groove.

2. The transformer structure according to claim 1, wherein: The first E-shaped magnetic core and the second E-shaped magnetic core are arranged opposite to each other up and down to form a structure in the shape of a Chinese character 'Ri'.

3. A transformer structure according to claim 1, characterized in that: A second epoxy resin glue is provided between the inner side of the upper end face and / or the lower end face of the magnet core body and the outer side of the upper end face and / or the lower end face of the skeleton; a third epoxy resin glue is provided between the inner side surface of the offset column and the left and right outer sides of the wire coil winding.

4. A transformer structure according to claim 1, characterized in that: The skeleton includes a main body part; the main body part is arranged inside the protective component, and the wire coil winding is wound around the main body part and surrounds the parts of the first E-shaped magnetic core and the second E-shaped magnetic core embedded in the main body part.

5. A transformer structure according to claim 4, characterized in that: First PIN positions, second PIN positions, third PIN positions, fourth PIN positions, and fifth PIN positions are provided at left and right intervals at the bottom of the main body part. The first PIN position, the second PIN position, the third PIN position, and the fifth PIN position all retain pins and are exposed outside the protective component, and the fourth PIN position is cut short and does not exceed the bottommost end face of the main body part.

6. A transformer structure according to claim 1, wherein: The outer peripheral surface of the first E-shaped magnetic core is completely covered with a first insulating tape; the outer peripheral surface of the second E-shaped magnetic core is completely covered with a second insulating tape.

7. A transformer structure according to claim 1, wherein: Heat dissipation layers are provided on the outer parts of the upper protective sleeve and the lower protective sleeve.

8. A transformer structure according to claim 7, characterized in that: A number of heat dissipation holes are provided on the heat dissipation layer.

9. A transformer structure according to claim 8, characterized in that: The heat dissipation layer is heat dissipation silica gel.

Images