Shielding structure of electronic transformer

Abstract

The utility model discloses an electronic transformer shielding structure which comprises an electronic transformer body, a shielding base is arranged at the bottom of the electronic transformer body, and a shielding shell matched with the shielding base is arranged at the top of the shielding base. The top of the shielding base is fixedly connected with a positioning clamping groove, and the shielding shell can be clamped and fixed with the positioning clamping groove; the shielding shell comprises two side shielding shells and a top shielding shell, and the side shielding shells are matched with the positioning clamping grooves; the inner surfaces of the two side shielding shells are symmetrically and fixedly connected with two U-shaped heat conduction pieces, and the U-shaped heat conduction pieces are matched with the electronic transformer body. According to the electronic transformer, through the arrangement of the side shielding shell, the top shielding shell, the fin radiator, the U-shaped heat conduction piece and the T-shaped heat conduction piece, heat generated by the electronic transformer can be conducted to the outside of the shielding shell, heat dissipation of the electronic transformer is facilitated, and therefore the service life of the electronic transformer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic transformers, in particular to a shielding structure of an electronic transformer. Background Art

[0002] Electronic transformer is a new type of electric energy conversion equipment. It not only has the basic functions of traditional power transformers such as voltage conversion, electrical isolation and energy transfer, but also can realize other additional functions such as power quality regulation, system flow control and reactive power compensation. The reason why power electronic transformer can realize these additional functions is mainly because it can flexibly process and control the amplitude and phase of the voltage or current of the primary and secondary sides of the transformer after introducing power electronic conversion technology and control technology, and can control the system flow according to actual needs.

[0003] At present, the shielding structure of electronic transformers is designed to reduce or eliminate electromagnetic interference in the transformer.

[0004] The prior art publication number is CN218100942U, which is an electronic transformer shielding structure. The shielding cover is sleeved on the outside of the electronic transformer. The four inner sides of the shielding cover are respectively provided with positioning springs for pressing the four sides of the electronic transformer. An elastic insulating pad is provided between the inner bottom surface of the shielding cover and the top surface of the electronic transformer. A socket corresponding to the pin of the electronic transformer is provided on the shielding bottom plate. An insulating sleeve is provided in the socket. The pin of the electronic transformer extends to the outside of the shielding bottom plate through the insulating sleeve. Connecting fins are respectively provided on the four sides of the shielding bottom plate. A pressing slot is provided on the shielding cover. The connecting fins are bent and riveted correspondingly in the pressing slot to fix the shielding cover and the shielding bottom plate together.

[0005] The electronic transformer has good shielding performance through the cooperation of the shielding outer cover and the shielding bottom plate, but there are still some defects in actual use. The main reason is that the electronic transformer is enclosed in the shielding outer cover, which blocks the air circulation, causing heat accumulation and unable to dissipate, which will affect the heat dissipation effect of the electronic transformer and thus affect its service life. Therefore, improvements are proposed. Utility Model Content

[0006] The utility model is an electronic transformer shielding structure proposed to solve the shortcomings in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electronic transformer shielding structure, comprising an electronic transformer body, a shielding base is provided at the bottom of the electronic transformer body, and a shielding shell matching the shielding base is provided at the top of the shielding base;

[0008] The top of the shielding base is fixedly connected with a positioning slot, and the shielding shell can be fixedly connected with the positioning slot;

[0009] The shielding shell comprises two side shielding shells and a top shielding shell, and the side shielding shells match the positioning card slots;

[0010] The inner surfaces of the two side shielding shells are symmetrically and fixedly connected with two U-shaped heat conducting parts, and the U-shaped heat conducting parts are matched with the electronic transformer body, and the inner walls on both sides of the two side shielding shells are provided with positioning slide grooves;

[0011] The bottom of the top shielding shell is symmetrically fixedly connected with two auxiliary slide bars, and the auxiliary slide bars match the positioning slide grooves, and the inner top of the top shielding shell is provided with a T-shaped heat conducting member;

[0012] A finned heat sink is fixedly embedded in one side outer wall of the two side shielding shells and the top shielding shell, and the finned heat sink is respectively connected to the adjacent U-shaped heat conducting member and the T-shaped heat conducting member.

[0013] Furthermore, the four U-shaped heat-conducting parts all include a U-shaped frame, and the U-shaped frame is fixedly connected to the side shielding shell, multiple L-shaped graphene sheets are fixedly embedded on both sides of the outer surface of the U-shaped frame, and the L-shaped graphene sheets are fixedly connected to adjacent fin heat sinks, and the inner walls on both sides of the U-shaped frame are fixedly connected to first thermal conductive pads, so as to facilitate the conduction of heat generated by the electronic transformer body to the fin heat sink.

[0014] Furthermore, a second heat-conducting gasket is fixedly mounted on one side of the outer surface of the U-shaped frame, and the second heat-conducting gasket can be in contact with the coil surface of the electronic transformer body, which is conducive to conducting the heat generated by the coil.

[0015] Furthermore, the T-shaped heat conductive component includes a third heat conductive gasket, the top of the third heat conductive gasket is fixedly connected with a straight graphene sheet, and the top of the straight graphene sheet and the adjacent fin heat sink are jointly fixedly connected with a heat conductive aluminum plate, so that the heat generated at the top of the electronic transformer body can be conducted to the fin heat sink.

[0016] Furthermore, a plurality of through holes extending from the top of the shielding base to the bottom are provided, and the through holes match the pins of the electronic transformer body. The provision of the through holes facilitates the pins to penetrate the shielding base for installation.

[0017] Furthermore, the outer surfaces of the three fin heat sinks are each provided with a plurality of air holes penetrating to the other side. The increase of the air holes can increase the heat dissipation area of ​​the fin heat sink and improve the heat dissipation effect.

[0018] Beneficial effects of the utility model:

[0019] 1. When the utility model is in use, the electronic transformer shielding structure can conduct the heat generated by the electronic transformer to the outside of the shielding shell through the side shielding shell, the top shielding shell, the finned heat sink, the U-shaped heat conductive member and the T-shaped heat conductive member, which is beneficial to the heat dissipation of the electronic transformer, thereby improving the service life of the electronic transformer.

[0020] 2. When the utility model is in use, the electronic transformer shielding structure, through the auxiliary slide bar, positioning slide groove, positioning slot, side shielding shell and top shielding shell, is conducive to the assembly and disassembly of the shielding structure, and is convenient for the maintenance or replacement of the electronic transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 : Schematic diagram of the overall structure of the utility model;

[0023] Figure 2 :The utility model Figure 1 The enlarged view of point A in the middle;

[0024] Figure 3 : A top view of the side shielding shell of the utility model;

[0025] Figure 4 : The front view of the U-shaped frame of the utility model;

[0026] Figure 5 : A cross-sectional view of the top shielding shell of the present utility model.

[0027] The reference numerals are as follows:

[0028] 1. Electronic transformer body; 2. Top shielding shell; 3. Fin heat sink; 4. Side shielding shell; 5. Positioning slot; 6. Through hole; 7. Shielding base; 8. Auxiliary slide bar; 9. Positioning slide slot; 10. U-shaped frame; 11. L-shaped graphene sheet; 12. First thermal pad; 13. Second thermal pad; 14. Aluminum plate; 15. Third thermal pad; 16. Straight graphene sheet; 17. Air hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figures 1 to 5 As shown, it involves an electronic transformer shielding structure, including an electronic transformer main body 1, a shielding base 7 is provided at the bottom of the electronic transformer main body 1, and a shielding shell matching the shielding base 7 is provided at the top of the shielding base 7, which has a shielding effect.

[0031] The top of the shielding base 7 is fixedly connected with a positioning slot 5, and the shielding shell can be fixedly connected with the positioning slot 5. The top of the shielding base 7 is provided with a plurality of through holes 6 extending to the bottom, and the through holes 6 match the pins of the electronic transformer body 1. The setting of the through holes 6 is conducive to the pin installation of the electronic transformer body 1.

[0032] The shielding shell includes two side shielding shells 4 and a top shielding shell 2, and the side shielding shells 4 match the positioning card slots 5, a T-shaped heat conductive piece is provided on the inner top of the top shielding shell 2, and the inner surfaces of the two side shielding shells 4 are symmetrically fixedly connected with two U-shaped heat conductive pieces, and the U-shaped heat conductive pieces are matched with the electronic transformer body 1, and the two side shielding shells 4 and one side outer wall of the top shielding shell 2 are fixedly embedded with finned heat sinks 3, and the finned heat sinks 3 are respectively connected to adjacent U-shaped heat conductive pieces and T-shaped heat conductive pieces, so that the heat generated by the electronic transformer body 1 can be conducted to the finned heat sink 3, and heat exchange is performed with the air through the finned heat sink 3 to improve the heat dissipation effect.

[0033] The four U-shaped heat-conducting parts all include a U-shaped frame 10, and the U-shaped frame 10 is fixedly connected to the side shielding shell 4, a plurality of L-shaped graphene sheets 11 are fixedly embedded on both sides of the outer surface of the U-shaped frame 10, and the L-shaped graphene sheet 11 is fixedly connected to the adjacent fin heat sink 3, the inner walls on both sides of the U-shaped frame 10 are fixedly connected to the first thermal conductive gasket 12, and a second thermal conductive gasket 13 is fixedly installed on one side of the outer surface of the U-shaped frame 10.

[0034] The T-shaped heat conducting member comprises a third heat conducting gasket 15 , a straight graphene sheet 16 is fixedly connected to the top of the third heat conducting gasket 15 , and a heat conducting aluminum plate 14 is fixedly connected between the top of the straight graphene sheet 16 and the adjacent fin heat sink 3 .

[0035] The inner walls on both sides of the two side shielding shells 4 are provided with positioning grooves 9, and the bottom of the top shielding shell 2 is symmetrically fixedly connected with two auxiliary slide bars 8, and the auxiliary slide bars 8 match the positioning grooves 9. The auxiliary slide bars 8 and the positioning grooves 9 cooperate to assist the side shielding shells 4 and the top shielding shells 2 in docking.

[0036] The outer surfaces of the three fin heat sinks 3 are each provided with a plurality of air holes 17 penetrating to the other side. The air holes 17 cooperate with the fin heat sink 3 to achieve a good heat dissipation effect.

[0037] Working principle: During assembly, first install the top shielding shell 2, let the third thermally conductive gasket 15 abut against the top of the electronic transformer body 1, then install the side shielding shell 4, align the positioning slide groove 9 with the auxiliary slide bar 8 and insert it until the two U-shaped heat-conducting parts are inserted into the electronic transformer body 1, the first thermally conductive gasket 12 abuts against the inner wall and outer wall of the electronic transformer body 1, the second thermally conductive gasket 13 abuts against the coil, and then align the pin with the through hole 6 and insert it, and then snap the two side shielding shells 4 into the positioning slot 5; during use, the heat generated by the electronic transformer body 1 is conducted to the L-shaped graphene sheet 11 through the first thermally conductive gasket 12 and the second thermally conductive gasket 13, and then conducted to the fin heat sinks 3 on both sides, and the heat generated by the electronic transformer body 1 is conducted to the top fin heat sink 3 through the third thermally conductive gasket 15, the straight graphene sheet 16 and the aluminum plate 14.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electronic transformer shielding structure, comprising an electronic transformer body (1), characterized in that: A shielding base (7) is provided at the bottom of the electronic transformer body (1), and a matching shielding shell is provided at the top of the shielding base (7); The top of the shielding base (7) is fixedly connected with a positioning slot (5), and the shielding shell can be fixedly connected with the positioning slot (5); The shielding shell comprises two side shielding shells (4) and a top shielding shell (2), and the side shielding shells (4) match the positioning slots (5); Two U-shaped heat-conducting parts are symmetrically and fixedly connected to the inner surfaces of the two side shielding shells (4), and the U-shaped heat-conducting parts are matched with the electronic transformer body (1), and positioning sliding grooves (9) are provided on the inner walls on both sides of the two side shielding shells (4); The bottom of the top shielding shell (2) is symmetrically fixedly connected with two auxiliary slide bars (8), and the auxiliary slide bars (8) match the positioning slide grooves (9), and the inner top of the top shielding shell (2) is provided with a T-shaped heat conducting member; A finned heat sink (3) is fixedly embedded in one side outer wall of the two side shielding shells (4) and the top shielding shell (2), and the finned heat sink (3) is respectively connected to an adjacent U-shaped heat conducting member and a T-shaped heat conducting member.

2. The electronic transformer shielding structure according to claim 1, characterized in that: The four U-shaped heat conducting parts all include a U-shaped frame (10), and the U-shaped frame (10) is fixedly connected to the side shielding shell (4), a plurality of L-shaped graphene sheets (11) are fixedly embedded on both sides of the outer surface of the U-shaped frame (10), and the L-shaped graphene sheets (11) are fixedly connected to adjacent fin heat sinks (3), and first heat conducting pads (12) are fixedly connected to the inner walls on both sides of the U-shaped frame (10).

3. The electronic transformer shielding structure according to claim 2, characterized in that: A second heat-conducting gasket (13) is fixedly mounted on one side of the outer surface of the U-shaped frame (10).

4. The electronic transformer shielding structure according to claim 1, characterized in that: The T-shaped heat conducting member comprises a third heat conducting gasket (15), the top of the third heat conducting gasket (15) is fixedly connected to a straight graphene sheet (16), and the top of the straight graphene sheet (16) and an adjacent fin heat sink (3) are jointly fixedly connected to a heat conducting aluminum plate (14).

5. The electronic transformer shielding structure according to claim 1, characterized in that: The top of the shielding base (7) is provided with a plurality of through holes (6) penetrating to the bottom, and the through holes (6) match the pins of the electronic transformer body (1).

6. The electronic transformer shielding structure according to claim 1, characterized in that: The outer surfaces of the three fin heat sinks (3) are each provided with a plurality of air holes (17) penetrating to the other side.

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