A transformer easy to assemble and position

Abstract

The invention discloses a transformer which is easy to assemble and position, comprising a skeleton, a magnetic core and a coil; the magnetic core comprises two E-shaped magnetic core pieces which are spliced ​​with each other front and back, the skeleton is arranged between the two E-shaped magnetic core pieces, the E-shaped magnetic core piece comprises a core body and side edges and a middle column arranged on the core body, the skeleton is provided with a through hole, the middle columns of the two E-shaped magnetic core pieces are connected through the through hole, the upper end of the skeleton has a positioning edge extending toward the core body, the core body is provided with a positioning groove which matches a positioning part, and the lower end of the skeleton has a positioning part, and the lower end of the core body is limited by the upper end of the positioning part; in this way, through the design of the skeleton and the magnetic core, the positioning groove is matched and connected with the positioning edge, and the positioning part is matched and connected with the lower end of the magnetic core, so as to realize the positioning operation of the magnetic core on the skeleton, the assembly is firm, which is beneficial to the subsequent operation of fixing the magnetic core and the skeleton by colloid, the structural design is ingenious and reasonable, the quality is stable and consistent, the production efficiency of the transformer is improved, the cost is low, and the application range is wide.

Description

Technical Field

[0001] The invention relates to the field of transformer technology, and in particular to a transformer which is easy to assemble and position. Background Art

[0002] With the development of science and technology, the size of electronic products is getting smaller and smaller, and the size of magnetic components is also required to be smaller and thinner. At present, transformers are indispensable devices in life and industrial production. The existence of transformers is becoming more and more important. While emphasizing functionality, transformers also need to consider structural rationality. The design and use of transformers are particularly important. They can convert the AC and high-voltage mains electricity commonly used in external circuits into low-voltage DC power for use in some low-power equipment.

[0003] Traditional transformers are generally composed of a frame, a coil and a magnetic core. In the process of producing the transformer, the enameled wire is first wound on the frame to form a coil. Then the magnetic core is installed on the frame body and fixed by colloid. However, its structural design is poor, and it is difficult to position the magnetic core on the frame, which makes the assembly of the magnetic core on the frame not firm, resulting in instability between the magnetic core and the frame in subsequent fixing operations, affecting the effect of the colloid, inconsistent quality, and increasing the production cost of the transformer. The production efficiency is low and the scope of application is small.

[0004] In addition, the pins of the transformer are easily pulled out and fall off the transformer, making it impossible for the transformer to be connected to the PCB board or causing a loose connection with the PCB board, thereby affecting the normal use of the transformer and poor stability of use.

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

[0006] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a transformer that is easy to assemble and position. The present invention realizes the positioning operation of the magnetic core on the skeleton by designing the skeleton and the magnetic core, utilizing the matching connection of the positioning groove and the positioning edge, and cooperating with the positioning part to connect with the lower end of the magnetic core, so as to facilitate the subsequent fixing operation of the magnetic core and the skeleton through colloid, and has stable and consistent quality, thereby improving the production efficiency of the transformer and having a wide range of applications.

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

[0008] A transformer that is easy to assemble and position, comprising a skeleton, a magnetic core and a coil; wherein: the skeleton has a winding groove, and the coil is wound in the winding groove; the magnetic core comprises two E-shaped magnetic core pieces that are spliced ​​to each other front and back, the skeleton is arranged between the two E-shaped magnetic core pieces, the E-shaped magnetic core piece comprises a core body and side edges and a middle column arranged on the core body, the side edges are respectively arranged on the left and right sides of the core body, the middle column is arranged in the middle of the core body and is located between the left and right side edges, the skeleton is provided with a through hole that passes through front and back, the middle columns of the two E-shaped magnetic core pieces are connected from the through hole, the upper end of the skeleton has a positioning edge extending toward the core body, the core body is provided with a positioning groove that matches the positioning portion, and the lower end of the skeleton has a positioning portion, and the lower end of the core body is limited by the upper end of the positioning portion.

[0009] As a preferred solution, a first cushion block is provided between the inner end surface of the positioning groove and the lower end of the positioning edge.

[0010] As a preferred solution, a second cushion block is provided between the lower end of the core body and the upper end of the positioning portion.

[0011] As a preferred solution, the left and right sides of the positioning edge are both provided with extended edges, and the extended edges are extended obliquely outward from bottom to top. Correspondingly, the inner wall surface of the positioning groove is extended obliquely outward from bottom to top.

[0012] As a preferred solution, a plurality of pins and a plurality of reinforcing columns are provided at the lower end of the positioning portion, the plurality of reinforcing columns are arranged at left and right intervals at the lower end of the positioning portion, and the plurality of pins are respectively provided between two adjacent reinforcing columns.

[0013] As a preferred solution, the pin is provided with a plurality of barbs arranged at intervals along the periphery of the pin, the barbs are arranged at the upper part of the pin, the positioning portion is provided with a mounting hole matching the pin, and the pin is inserted into the mounting hole from top to bottom.

[0014] As a preferred solution, a plurality of reinforcing members arranged in a left-right spacing manner are provided at the lower end of the positioning portion.

[0015] As a preferred solution, the reinforcement is U-shaped and includes two vertical plates and one horizontal plate. The two vertical plates are respectively arranged on the left and right sides of the horizontal plate, and the upper end of the vertical plate is abutted against the lower end of the positioning portion.

[0016] As a preferred solution, a third pad is connected to the lower ends of the plurality of reinforcement members.

[0017] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that the present invention mainly realizes the positioning operation of the magnetic core on the skeleton by designing the skeleton and the magnetic core, using the matching connection of the positioning groove and the positioning edge, and coordinating the connection of the positioning part with the lower end of the magnetic core, so as to achieve the positioning operation of the magnetic core on the skeleton. The assembly is firm, which is conducive to the subsequent fixing operation of the magnetic core and the skeleton by colloid. The structural design is ingenious and reasonable, the quality is stable and consistent, the production efficiency of the transformer is improved, the cost is low, and the application range is wide.

[0018] Secondly, the setting of the first pad and the second pad improves the connection firmness of the magnetic core on the frame, thereby improving the overall strength of the transformer and ensuring the use stability of the transformer. At the same time, the setting of the extended edge improves the strength of the positioning edge and ensures the firm connection between the positioning groove and the positioning edge.

[0019] Furthermore, the setting of the reinforcing column ensures the strength of the connection between the frame and the PCB board. At the same time, the setting of the barb prevents the pin from falling off due to the pulling force, ensuring good contact between the transformer and the PCB board, and good usability;

[0020] In addition, the provision of the reinforcement improves the structural strength of the frame and ensures the strength and stability of the connection between the frame and the PCB board. At the same time, the provision of the third pad further ensures the strength and stability of the connection between the frame and the PCB board.

[0021] In order to more clearly illustrate the structural features and effects 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 front view of an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A first partial enlarged schematic diagram of A of the structure shown;

[0024] Figure 3 yes Figure 1 A second partial enlarged schematic diagram of position B of the structure shown;

[0025] Figure 4 is a cross-sectional view of an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 A first partial enlarged schematic diagram of a portion C of the structure shown;

[0027] Figure 6 yes Figure 4 A second partial enlarged schematic diagram of point D of the structure shown.

[0028] Description of the accompanying drawings: 11 skeleton, 111 through hole, 112 positioning edge, 113 positioning part, 114 extended edge, 115 reinforcement column, 116 mounting hole, 12 magnetic core, 121 E-shaped magnetic core piece, 122 core body, 123 side, 124 middle column, 125 positioning groove, 14 first pad, 141 main body, 142 connecting block, 143 guide slope, 15 second pad, 16 pin, 161 barb, 17 reinforcement, 171 vertical plate, 172 horizontal plate, 18 third pad. DETAILED DESCRIPTION

[0029] Please refer to Figures 1 to 6 As shown, it shows the specific structure of an embodiment of the present invention.

[0030] A transformer that is easy to assemble and position includes a frame 11, a magnetic core 12 and a coil (not shown in the figure); wherein:

[0031] The frame 11 has a winding groove, and the coil is wound in the winding groove;

[0032] The magnetic core 12 includes two E-shaped magnetic core pieces 121 connected to each other front and back, and the skeleton 11 is arranged between the two E-shaped magnetic core pieces 121. The E-shaped magnetic core piece 121 includes a core body 122 and side edges 123 and a middle column 124 arranged on the core body. The side edges 123 are arranged on the left and right sides of the core body 122 respectively, and the middle column 124 is arranged in the middle of the core body 122 and between the side edges 123 on the left and right sides. The skeleton 11 is provided with a front-to-back through Through hole 111, the middle columns 124 of the two E-shaped magnetic core pieces 121 are connected from the through hole 111, the upper end of the skeleton 11 has a positioning edge 112 extending toward the core body 122, and the core body 122 is provided with a positioning groove 125 matching the positioning portion, here, the left and right sides of the positioning edge 112 are provided with an extension edge 114, and the extension edge 114 is extended outwardly from bottom to top, and correspondingly, the inner wall surface of the positioning groove 125 is extended outwardly from bottom to top;

[0033] Moreover, the lower end of the skeleton 11 has a positioning portion 113, and the lower end of the core body 122 is limited by the upper end of the positioning portion 113; in this way, through the design of the skeleton and the magnetic core, the positioning groove is matched with the positioning edge and connected, and the positioning portion is connected with the lower end of the magnetic core to realize the positioning operation of the magnetic core on the skeleton. The assembly is firm, which is conducive to the subsequent fixing operation of the magnetic core and the skeleton through colloid. The structural design is ingenious and reasonable, the quality is stable and consistent, the production efficiency of the transformer is improved, the cost is low, and the application range is wide.

[0034] In this embodiment, a first cushion block 14 is arranged between the inner end surface of the positioning groove 125 and the lower end of the positioning edge 112, and the first cushion block 14 includes a block body 141 and a connecting block 142 arranged on the left and right sides of the block body 141, and the connecting block 142 is arranged to extend obliquely, and the two ends of the block body 141 are limited by the inner end surface of the positioning groove 125 and the lower end of the positioning edge 112, and the two ends of the connecting block 142 are limited by the inner wall of the positioning groove 125 and the lower end of the extension edge 114; in addition, a second cushion block 15 is arranged between the lower end of the core body 122 and the upper end of the positioning portion 113, and the second cushion block 15 is extended to the left and right; in this way, the arrangement of the first cushion block and the second cushion block improves the connection firmness of the magnetic core on the skeleton, thereby improving the overall strength of the transformer and ensuring the stability of the transformer in use.

[0035] Preferably, the inner sides of the block body 141 and the connecting block 142 are both provided with guiding inclined surfaces 143 to facilitate assembly and positioning between the first cushion block and the positioning edge, and the operation is simple.

[0036] In addition, a plurality of pins 16 and a plurality of reinforcing columns 115 are provided at the lower end of the positioning portion 113, the plurality of reinforcing columns 115 are arranged at a left-right spacing at the lower end of the positioning portion 113, and the plurality of pins 16 are respectively arranged between two adjacent reinforcing columns 115; and, the pins 16 are provided with a plurality of barbs 161 arranged at a spacing along the periphery of the pins, the barbs 161 are arranged at the upper part of the pins 16, and the positioning portion 113 is provided with mounting holes 116 matching the pins, and the pins 16 are inserted into the mounting holes 116 from top to bottom; in this way, the provision of the reinforcing columns ensures the strength of the connection between the skeleton and the PCB board, and at the same time, the provision of the barbs avoids the phenomenon of the pins falling off due to the pulling force, thereby ensuring good contact between the transformer and the PCB board and good usability.

[0037] In addition, the lower end of the positioning portion 113 is provided with a plurality of reinforcing members 17 arranged in a left-right spacing manner, and the reinforcing members 17 are respectively arranged between two adjacent reinforcing columns 115 and located on the side of the pin 16. In this embodiment, the reinforcing member 17 is U-shaped, and the reinforcing member 17 includes two vertical plates 171 and a horizontal plate 172. The two vertical plates 171 are respectively arranged on the left and right sides of the horizontal plate 172, and the upper ends of the vertical plates 171 are abutted against the lower end of the positioning portion 113. Here, the lower end surface of the horizontal plate 172 is flush with the lower end surface of the reinforcing column 115; preferably, the lower ends of the plurality of reinforcing members 17 and the lower ends of the plurality of reinforcing columns are connected with a third pad 18. In this way, the arrangement of the reinforcing members improves the structural strength of the skeleton, ensures the strength and stability of the connection between the skeleton and the PCB board, and the arrangement of the third pad further ensures the strength and stability of the connection between the skeleton and the PCB board.

[0038] The design focus of the present invention is that it mainly realizes the positioning operation of the magnetic core on the skeleton by designing the skeleton and the magnetic core, using the matching connection of the positioning groove and the positioning edge, and coordinating the connection of the positioning part with the lower end of the magnetic core, so as to realize the positioning operation of the magnetic core on the skeleton, and the assembly is firm, which is conducive to the subsequent operation of fixing the magnetic core and the skeleton by colloid. The structural design is ingenious and reasonable, the quality is stable and consistent, the production efficiency of the transformer is improved, the cost is low, and the application range is wide;

[0039] Secondly, the setting of the first pad and the second pad improves the connection firmness of the magnetic core on the frame, thereby improving the overall strength of the transformer and ensuring the use stability of the transformer. At the same time, the setting of the extended edge improves the strength of the positioning edge and ensures the firm connection between the positioning groove and the positioning edge.

[0040] Furthermore, the setting of the reinforcing column ensures the strength of the connection between the frame and the PCB board. At the same time, the setting of the barb prevents the pin from falling off due to the pulling force, ensuring good contact between the transformer and the PCB board, and good usability;

[0041] In addition, the provision of the reinforcement improves the structural strength of the frame and ensures the strength and stability of the connection between the frame and the PCB board. At the same time, the provision of the third pad further ensures the strength and stability of the connection between the frame and the PCB board.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A transformer that is easy to assemble and position, characterized in that: It comprises a frame, a magnetic core and a coil; wherein: the frame has a winding groove, and the coil is wound in the winding groove; the magnetic core comprises two E-shaped magnetic core pieces spliced ​​front and back to each other, the frame is arranged between the two E-shaped magnetic core pieces, the E-shaped magnetic core piece comprises a core body and side edges and a middle column arranged on the core body, the side edges are arranged on the left and right sides of the core body respectively, the middle column is arranged in the middle of the core body and is located between the left and right side edges, the frame is provided with a through hole that penetrates front and back, and the middle columns of the two E-shaped magnetic core pieces are connected from the through hole; The upper end of the frame has a positioning edge extending toward the core, the core is provided with a positioning groove matching the positioning portion, and the lower end of the frame has a positioning portion, the lower end of the core is limited by the upper end of the positioning portion; The left and right sides of the positioning edge are both provided with extended edges, and the extended edges are extended obliquely outward from bottom to top, and correspondingly, the inner wall surface of the positioning groove is extended obliquely outward from bottom to top; a first cushion block is provided between the inner end surface of the positioning groove and the lower end of the positioning edge, and the first cushion block includes a block body and connecting blocks provided on the left and right sides of the block body, and the connecting block is extended obliquely, and the inner sides of the block body and the connecting block are both provided with guiding inclined surfaces, and the two ends of the block body are limited by the inner end surface of the positioning groove and the lower end of the positioning edge, and the two ends of the connecting block are limited by the inner wall of the positioning groove and the lower end of the extended edge; a second cushion block is provided between the lower end of the core body and the upper end of the positioning portion, and the second cushion block is extended left and right; The lower end of the positioning portion is provided with a plurality of pins and a plurality of reinforcing columns, the plurality of reinforcing columns are arranged at a left-right spacing at the lower end of the positioning portion, and the plurality of pins are respectively arranged between two adjacent reinforcing columns; and the pins are provided with a plurality of barbs arranged at a spacing along the periphery of the pins, the barbs are arranged at the upper part of the pins, the positioning portion is provided with a mounting hole matching the pins, and the pins are inserted into the mounting hole from top to bottom.

2. A transformer that is easy to assemble and position according to claim 1, characterized in that: The lower end of the positioning portion is provided with a plurality of reinforcing members arranged in a left-right spacing manner.

3. A transformer that is easy to assemble and position according to claim 2, characterized in that: The reinforcing member is in a U shape and comprises two vertical plates and a horizontal plate. The two vertical plates are respectively arranged on the left and right sides of the horizontal plate, and the upper end of the vertical plate is abutted against the lower end of the positioning portion.

4. A transformer that is easy to assemble and position according to claim 3, characterized in that: The lower ends of the plurality of reinforcement members are connected with a third cushion block.

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