CN218274230U

CN218274230U - High-frequency transformer with shielding function

Info

Publication number: CN218274230U
Application number: CN202221998267.0U
Authority: CN
Inventors: 倪黄平; 张荣国; 杨士双
Original assignee: Shanghai Tianrong Electric Appliance Co ltd
Current assignee: Shanghai Tianrong Electric Appliance Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-10
Anticipated expiration: 2032-07-29

Abstract

The utility model provides a high frequency transformer with shielding function relates to transformer technical field, including the transformer body, the protective housing is installed in the outside of transformer body, the both sides of protective housing have all been seted up and have been held the chamber, the inside of protective housing has been seted up between holding the chamber and has been connected the chamber, the inside sliding connection who connects the chamber has a pair of first shield plate, sliding connection has the second shield plate between a pair of first shield plate, one side swing joint of a pair of first shield plate has the third shield plate, the second shield plate, the third shield plate all can with hold chamber block of each other, a plurality of radiating grooves have been seted up to the bottom of protective housing. The utility model discloses a through the use of first shield plate, second shield plate and third shield plate, can reduce the electromagnetism to the interference of transformer, make it normally work.

Description

High-frequency transformer with shielding function

Technical Field

The utility model belongs to the technical field of the transformer, more specifically say, in particular to high frequency transformer with shielding function.

Background

The transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and an iron core. The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization, and the like.

The high-frequency transformer with shielding function disclosed in chinese utility model patent application publication CN210073546U indicates that the high-frequency current and voltage changes in the high-frequency switching power supply, the conducting of the conducting wire, and the coupling form of the parasitic inductance and the parasitic capacitance conducts EMI, and the change of the current and the voltage forms radiated EMI along with the change of the magnetic field and the electric field, so that the switching power supply in all topology forms has the problem of electromagnetic interference, which seriously affects the operation of the transformer.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a high-frequency transformer with a shielding function is provided to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high frequency transformer with shielding function to solve present transformer and easily receive electromagnetic interference's problem.

The utility model discloses high frequency transformer's with shielding function purpose and efficiency are reached by following concrete technical means:

the utility model provides a high frequency transformer with shielding function, includes the transformer body, the protective housing is installed in the outside of transformer body, the both sides of protective housing have all been seted up and have been held the chamber, the inside of protective housing has been seted up between holding the chamber and has been connected the chamber, the inside sliding connection in connection chamber has a pair of first shield plate, and is a pair of sliding connection has the second shield plate between the first shield plate, and is a pair of one side swing joint of first shield plate has the third shield plate, second shield plate, third shield plate all can with hold chamber block of each other, a plurality of radiating grooves have been seted up to the bottom of protective housing.

Furthermore, the pair of first shielding plate, the second shielding plate and the third shielding plate are all metal copper plates.

Furthermore, a pair of the first shielding plate is provided with a sliding strip on one side close to each other, sliding grooves are formed in two sides of the second shielding plate, and the sliding strip can slide in the sliding grooves.

Furthermore, it is a pair of the connecting block is all installed to one side of first shield plate, the connecting block is "L" shape, the connecting hole has all been seted up to the both sides of third shield plate, the one end and the connecting hole block of each other of connecting block.

Furthermore, a limiting groove is formed in each of two sides of the third shielding plate, the bottom end depth of the limiting groove is larger than the top end depth, the limiting groove is connected with the connecting hole, and one end of the connecting block can slide in the limiting groove.

Furthermore, a groove is formed in one end of the connecting block, a connecting column is connected to the groove in a sliding mode, a spring is connected between the connecting column and the groove, and one end of the connecting column is connected with a rotating shaft.

Further, a pair of threaded rods is installed to one side of third shield plate, the spread groove has been seted up to one side symmetry of guard box, just the internally mounted of spread groove has the connecting axle, and the outside cover of connecting axle is equipped with the fixed plate, just the through-hole has been seted up to the inside of fixed plate, the threaded rod can slide in the through-hole, the outside interlock of threaded rod is connected with the nut.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a spout and the use of draw runner, can interconnect a pair of first shield plate and second shield plate, remove a pair of first shield plate to connecting the chamber after, the second shield plate also naturally with hold chamber looks block, and simultaneously, because the connecting block can surround its junction rotation with first shield plate, so after first shield plate passes through connecting the chamber, rotatable connecting block, make it keep in the state that is parallel to each other with first shield plate, through the spacing groove, the use of connecting hole, can be connected third shield plate and first shield plate, and simultaneously, can also make the third shield plate enclose round the connecting block rotatory, make it laminate with first shield plate, the bottom degree of depth because of the spacing groove is greater than the top degree of depth, rethread spring, the fluting, the use of spliced pole and pivot, make the connecting block can be easier be connected with the connecting hole through the spacing groove, through the threaded rod, the fixed plate, through-hole and nut use, can fix third shield plate and protection box mutually, finally accomplish first shield plate in pairs, the installation of second shield plate and third shield plate, because of them can reduce the normal work of transformer, so.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a first perspective view of the first shield plate, the second shield plate, and the third shield plate of the present invention.

Fig. 3 is an enlarged schematic view of the structure at a in fig. 2 of the present invention.

Fig. 4 is a second perspective view of the first shield plate, the second shield plate, and the third shield plate of the present invention.

Fig. 5 is an enlarged schematic view of the structure at B in fig. 4 of the present invention.

Fig. 6 is an exploded view of the connection block of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a transformer body; 2. a protective box; 3. an accommodating chamber; 4. a connecting cavity; 5. connecting grooves; 6. a fixing plate; 7. a first shield plate; 8. a second shielding plate; 9. a third shield plate; 10. a slide bar; 11. a nut; 12. a threaded rod; 13. connecting blocks; 14. a limiting groove; 15. a rotating shaft; 16. connecting columns; 17. a spring.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 6:

the utility model provides a high frequency transformer with shielding function, including transformer body 1, protective housing 2 is installed in transformer body 1's the outside, protective housing 2's both sides have all been seted up and have been held chamber 3, protective housing 2's inside has been seted up and has been connected chamber 4 between holding chamber 3, the inside sliding connection who connects chamber 4 has a pair of first shield plate 7, sliding connection has second shield plate 8 between a pair of first shield plate 7, one side swing joint of a pair of first shield plate 7 has third shield plate 9, second shield plate 8, third shield plate 9 all can with hold chamber 3 block of each other, a plurality of radiating grooves have been seted up to protective housing 2's bottom, through first shield plate 7, second shield plate 8 and third shield plate 9's use, can reduce the interference of electromagnetism to the transformer, make it normally work.

The pair of first shielding plates 7, the second shielding plates 8 and the third shielding plates 9 are all metal copper plates.

Wherein, a pair of first shield plate 7 all installs draw runner 10 in the one side that is close to each other, and the spout has all been seted up to the both sides of second shield plate 8, and draw runner 10 can slide in the inside of spout, can interconnect a pair of first shield plate 7 and second shield plate 8, removes a pair of first shield plate 7 to connecting chamber 4 back, and second shield plate 8 also naturally with holding 3 looks blocks in chamber.

Wherein, connecting block 13 is all installed to one side of a pair of first shield plate 7, and connecting block 13 is "L" shape, and the connecting hole has all been seted up to the both sides of third shield plate 9, and the one end of connecting block 13 can block mutually with the connecting hole, can be connected third shield plate 9 with first shield plate 7, and simultaneously, can also make third shield plate 9 surround connecting block 13 rotatory, makes it laminate mutually with first shield plate 7.

Wherein, limiting groove 14 has all been seted up to the both sides of third shield plate 9, and limiting groove 14's bottom degree of depth is greater than the top degree of depth, and limiting groove 14 links to each other with the connecting hole, and the one end of connecting block 13 can slide in limiting groove 14's inside.

Wherein, the fluting has been seted up to the one end of connecting block 13, and sliding connection has spliced pole 16 in the fluting, is connected with spring 17 between spliced pole 16 and the fluting, and the one end of spliced pole 16 is connected with pivot 15 for connecting block 13 can be more easily be connected with the connecting hole through spacing groove 14.

Wherein, a pair of threaded rod 12 is installed to one side of third shield plate 9, and spread groove 5 has been seted up to one side symmetry of protective housing 2, and the internally mounted of spread groove 5 has the connecting axle, and the outside cover of connecting axle is equipped with fixed plate 6, and the through-hole has been seted up to the inside of fixed plate 6, and threaded rod 12 can slide in the through-hole, and the outside interlock of threaded rod 12 is connected with nut 11, can be fixed third shield plate 9 and protective housing 2 mutually.

The specific use mode and function of the embodiment are as follows:

when the product is used, whether the connection part of the product is fastened or not is firstly detected, the product is placed at a designated position after the product is ensured to be intact, then the pair of first shielding plates 7 and the pair of second shielding plates 8 can be connected with each other through the sliding grooves and the sliding strips 10, the pair of first shielding plates 7 are moved to the connecting cavity 4, the second shielding plates 8 are naturally clamped with the accommodating cavity 3, the third shielding plates 9 are connected with the first shielding plates 7 through the connecting blocks 13, meanwhile, the third shielding plates 9 can rotate around the connecting blocks 13 to be attached to the first shielding plates 7, finally, the third shielding plates 9 and the protective box 2 can be fixed through the threaded rods 12, the fixing plates 6, the through holes and the screw nuts 11, and finally, the first shielding plates 7, the second shielding plates 8 and the third shielding plates 9 are installed, so that the interference of electromagnetism on a transformer can be reduced, and the transformer can work normally.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A high-frequency transformer with a shielding function is characterized in that: including transformer body (1), protective housing (2) are installed in the outside of transformer body (1), the both sides of protective housing (2) have all been seted up and have been held chamber (3), the inside of protective housing (2) has been seted up between holding chamber (3) and has been connected chamber (4), the inside sliding connection of connecting chamber (4) has a pair of first shield plate (7), and is a pair of sliding connection has second shield plate (8), and is a pair of between first shield plate (7) one side swing joint of first shield plate (7) has third shield plate (9), second shield plate (8), third shield plate (9) all can with hold chamber (3) block of each other, a plurality of radiating grooves have been seted up to the bottom of protective housing (2).

2. The high-frequency transformer with a shield function according to claim 1, characterized in that: the pair of first shielding plates (7), the second shielding plates (8) and the third shielding plates (9) are all metal copper plates.

3. The high-frequency transformer with shielding function according to claim 1, characterized in that: a pair of the first shielding plates (7) are provided with sliding strips (10) on one sides close to each other, sliding grooves are formed in the two sides of the second shielding plates (8), and the sliding strips (10) can slide in the sliding grooves.

4. The high-frequency transformer with a shield function according to claim 1, characterized in that: it is a pair of connecting block (13) are all installed to one side of first shield plate (7), connecting block (13) are "L" shape, the connecting hole has all been seted up to the both sides of third shield plate (9), the block of each other can be blocked with the connecting hole to the one end of connecting block (13).

5. The high-frequency transformer with a shield function according to claim 4, characterized in that: limiting grooves (14) are formed in the two sides of the third shielding plate (9), the bottom end depth of each limiting groove (14) is larger than the top end depth, each limiting groove (14) is connected with the corresponding connecting hole, and one end of each connecting block (13) can slide in the corresponding limiting groove (14).

6. The high-frequency transformer with a shield function according to claim 4, characterized in that: the connecting device is characterized in that a groove is formed in one end of the connecting block (13), a connecting column (16) is connected in the groove in a sliding mode, a spring (17) is connected between the connecting column (16) and the groove, and a rotating shaft (15) is connected to one end of the connecting column (16).

7. The high-frequency transformer with shielding function according to claim 1, characterized in that: a pair of threaded rod (12) is installed to one side of third shield plate (9), spread groove (5) have been seted up to the one side symmetry of guard box (2), just the internally mounted of spread groove (5) has the connecting axle, and the outside cover of connecting axle is equipped with fixed plate (6), just the through-hole has been seted up to the inside of fixed plate (6), threaded rod (12) can slide in the through-hole, the outside interlock of threaded rod (12) is connected with nut (11).