An adjustable device for assembling the magnetic core of a planar transformer

Abstract

The present invention discloses an adjustable device for assembling a planar transformer core, which belongs to the application field of core bonding. The adjustable device of the present invention comprises a main body assembly, a limit plate, an upper pressure plate assembly, a cam adjustment assembly, a lower cover plate, and a lower pressure plate assembly. The cam adjustment assembly can adjust the position of the core in two horizontal directions, the slots of the limit plate can limit the position of the core, and the upper / lower pressure plates can press the two parts of the planar core and the PCB against each other. The packaging structure of the present invention has the advantages of small size, adjustable horizontal position of the core, high bonding consistency, easy operation, and high efficiency, thereby improving the reliability of the core bonding during use.

Description

Technical Field

[0001] The invention belongs to the field of magnetic core bonding, in particular to an adjustable device and precision assembly for mounting a planar magnetic core. Background Art

[0002] Due to limitations in the core sintering process, the tolerance on shape and dimensions is generally no less than 1%. To accommodate larger cores, the PCB slot dimensions are typically larger. However, with the increasing integration and miniaturization of power supplies, the space available for core installation is shrinking, along with the safety distance from surrounding components. This requires the core to be centrally mounted, not sideways. Especially when the chip's plastic encapsulation process is used in power modules, the core must be centered within the PCB slot, and the side gap between the PCB slot and the core must be filled with a low-modulus glue. Otherwise, the core will be susceptible to cracking due to temperature fluctuations after plastic encapsulation.

[0003] Traditional core bonding processes generally use clips to clamp the core, or use tooling to slot the core and PCB. However, this cannot avoid the phenomenon of eccentric bonding of the core due to dimensional tolerances of the core. Summary of the Invention

[0004] The object of the present invention is to provide an adjustable device for assembling a planar transformer core in order to solve the problems existing in the prior art.

[0005] The technical solution for achieving the purpose of the present invention is: an adjustable device for assembling a planar transformer core, the device comprising a main body component, a limit plate, an upper pressure plate assembly, a cam adjustment assembly and a lower pressure plate assembly; the PCB is installed in a groove on the upper surface of the main body component, and the cam adjustment assembly is installed in a groove on the lower surface of the main body component, for placing the magnetic core in the center of the PCB slot and enabling position adjustment of the magnetic core in two horizontal directions; the limit plate is installed on the upper surface of the main body component and is provided with a slot for limiting the first magnetic rod of the magnetic core, and the limit plate is used to press the PCB and the main body component; the upper pressure plate assembly and the lower pressure plate assembly are respectively installed on the upper and lower sides of the main body component, for respectively pressing the second magnetic rod of the magnetic core against the first magnetic rod and the second magnetic rod of the magnetic core against the PCB board.

[0006] Furthermore, the device also includes a lower cover plate, which is installed on the lower surface of the main body assembly and is located below the cam adjustment assembly to prevent the cam adjustment assembly from falling.

[0007] Furthermore, the main body component includes a main body, a positioning pin, a snap assembly and a limit plate clamping assembly; positioning pins and snap assembly are installed on the upper and lower sides of the main body to respectively realize the positioning and height clamping of the upper pressure plate assembly and the lower pressure plate assembly; the limit plate clamping assembly is used to realize the clamping between the limit plate, PCB and the main body.

[0008] Furthermore, the main body is processed with a limit plate and a positioning column of the PCB to achieve precise assembly between the limit plate, the PCB and the main body assembly.

[0009] Furthermore, the buckle assembly includes a buckle, a buckle fixing seat, a buckle shaft and a first spring; the buckle fixing seat is installed on the main body, and the buckle is movably connected to the buckle fixing seat through the buckle shaft, one end of the buckle is connected to the buckle fixing seat through the first spring, and the other end is a wedge-shaped structure pressure plate, which is higher than the upper surface of the buckle fixing seat, and a slot is formed between the two; in actual application, the upper pressure plate assembly or the lower pressure plate assembly is pressed in through the positioning pin guide, and the wedge-shaped structure of the buckle is squeezed to generate an external thrust, driving the buckle to rotate to the open position with the buckle shaft as the rotation center so that the upper pressure plate assembly or the lower pressure plate assembly is smoothly pressed in. During this process, the first spring is gradually compressed. After being pressed in, the thrust of the first spring rebounds, so that the wedge-shaped structure pressure plate on the buckle presses the upper pressure plate assembly or the lower pressure plate assembly, thereby achieving rapid fixation.

[0010] The cam is secured to the bottom of the support rail and is secured to a position 520 degrees Celsius above the support rail, and the cam is secured to the bottom of the support rail when the cam is engaged with the support rail.

[0011] Furthermore, the cam adjustment assembly includes left and right slider assemblies and front and rear slider assemblies; the left and right slider assemblies include left and right sliders, a top block, a side push block and a third spring, the left and right sliders are provided with a magnetic core limiting groove, the side push block is installed on two adjacent sides of the magnetic core limiting groove, and the second magnetic rod of the magnetic core located in the magnetic core limiting groove is pressed by the third spring from two perpendicular horizontal directions to ensure that the magnetic core will not loosen; the front and rear slider assemblies include front and rear sliders, a cam and a fourth spring, the front and rear sliders are provided with left and right slider assembly limiting grooves, a cam is provided at the left bottom of the groove, and a fourth spring is provided on the right side wall, the left and right slider assemblies are embedded in the left and right slider assembly limiting grooves and are located between the cam and the fourth spring, and are connected to the fourth spring; in actual application, the front and rear sliders reserve adjustment margins on the left and right installation spaces for installing the left and right sliders, and the left and right sliders are moved by pushing out the right spring, limiting the left cam, and changing the radius of the major and minor axes of the rotating cam, thereby realizing the movement of the magnetic core in the left and right directions.

[0012] Furthermore, the front and rear sliders are fixed to the grooves on the lower surface of the main body through the front cam and the rear spring in the same installation manner as the left and right slider assemblies, thereby realizing overall front and rear direction adjustment.

[0013] Furthermore, the upper pressure plate assembly includes an upper pressure plate, an equal height limit bolt, a fifth spring and an upper pressure block; the upper pressure block is installed under the upper pressure plate through the equal height limit bolt, and the equal height limit bolt is covered with a fifth spring; the upper pressure plate assembly is positioned by the positioning pin on the main body assembly, and is tightened in the height direction by the snap assembly; after fixing, the upper pressure block passes through the slot of the limit plate to press the first magnetic rod and the second magnetic rod of the magnetic core; similarly, the composition style of the lower pressure plate assembly is the same as the upper pressure plate assembly, and its upper pressure block passes through the slot on the lower cover plate to press the second magnetic rod and the PCB of the magnetic core.

[0014] Compared with the prior art, the present invention has the following significant advantages:

[0015] 1) The packaging structure of the present invention has the advantages of small size, easy operation, single curing, and high bonding consistency, thereby significantly improving the reliability of the magnetic core bonding during use.

[0016] 2) The side push block structure is used to fix the magnetic core, which is compatible with magnetic cores of different dimensions. Then a cam mechanism is used to adjust the horizontal position of the magnetic core, and the elastic force of the upper and lower pressure plate assemblies is used to tighten it, thereby achieving the precise bonding requirements of plastic-sealed power supply magnetic cores.

[0017] The present invention is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 An exploded view of an adjustable device assembled on a planar transformer core in one embodiment.

[0019] Figure 2 FIG. 4 is a cross-sectional view of a planar magnetic core after bonding in one embodiment. FIG.

[0020] Figure 3 Schematic diagram of the main components of the device in one embodiment.

[0021] Figure 4 Schematic diagram of the installation of the magnetic core of a device in one embodiment, wherein Figure (a) is an overall installation diagram and Figure (b) is a cross-sectional diagram.

[0022] Figure 5 Schematic diagram of the installation of the left and right adjustment mechanism of the device in one embodiment, wherein Figure (a) is the overall installation diagram and Figure (b) is a cross-sectional diagram.

[0023] Figure 6 This is a schematic diagram of the installation of the front and rear adjustment mechanism of the device in one embodiment.

[0024] Figure 7 Schematic diagram of the upper cover assembly of the device in one embodiment.

[0025] Figure 8 FIG. 4 is an overall cross-sectional view of a device in one embodiment. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The general planar magnetic core types are EE, EI, UI, etc., and the present invention uses EI core for illustration. Figure 2 As shown in the cross-sectional view, the magnetic core 5 consists of an E-rod 5.1 and an I-rod 5.2. The core bonding requires that the cylindrical portion of the E-rod be positioned at the center of the slot in the PCB 4, with the inner surface of the E-rod 5.1 firmly attached to the lower surface of the PCB. Magnetic bead adhesive is typically used to bond the E-rod 5.1 and I-rod 5.2 to achieve the desired air gap and core inductance.

[0030] In one embodiment, Figure 1 As shown, the adjustable device for assembling the planar transformer core of the present invention includes a main body component 1, a limit plate 2, an upper pressure plate assembly 3, a cam adjustment assembly 6 and a lower pressure plate assembly 8; the PCB4 is installed in the groove on the upper surface of the main body component 1, and the cam adjustment assembly 6 is installed in the groove on the lower surface of the main body component 1, for placing the magnetic core in the center of the slot of the PCB4, and can realize the position adjustment of the magnetic core in two horizontal directions; the limit plate 2 is installed on the upper surface of the main body component 1, and is provided with a slot for limiting the magnetic core I rod, and the limit plate 2 is used to press the PCB4 and the main body component 1; the upper pressure plate assembly 3 and the lower pressure plate assembly 8 are respectively installed on the upper side and the lower side of the main body component 1, for respectively realizing the pressing of the magnetic core E rod and the I rod, and the pressing of the magnetic core E rod and the PCB board.

[0031] Furthermore, in one embodiment, the device also includes a lower cover plate 7, which is installed on the lower surface of the main body component 1 and is located below the cam adjustment component 6, for preventing the cam adjustment component 6 from falling. The lower cover plate is provided with a slot for the pressure block of the lower pressure plate assembly 8 to pass through and press the magnetic core E rod 5.1 and the PCB 4.

[0032] Furthermore, in one embodiment, Figure 3 As shown, the main body component 1 includes a main body 1.1, a positioning pin 1.2, a snap assembly 1.3 and a limit plate clamping assembly 1.4; the main body 1.1 is installed with a positioning pin 1.2 and a snap assembly 1.3 on the upper and lower sides, respectively realizing the positioning of the upper pressure plate assembly 3 and the lower pressure plate assembly 8 and the clamping in the height direction; the limit plate clamping assembly 1.4 is used to realize the clamping between the limit plate 2 and the main body 1.1 and the PCB 4.

[0033] The main body 1.1 is processed with positioning columns for the limit plate 2 and PCB 4 to achieve precise assembly between the limit plate 2, PCB 4 and the main body component 1.

[0034] The buckle assembly 1.3 includes a buckle 1.3.1, a buckle fixing seat 1.3.2, a buckle shaft 1.3.3 and a first spring 1.3.4; the buckle fixing seat 1.3.2 is installed on the main body 1.1, and the buckle 1.3.1 is movably connected to the buckle fixing seat 1.3.2 through the buckle shaft 1.3.3. One end of the buckle 1.3.1 is connected to the buckle fixing seat 1.3.2 through the first spring 1.3.4, and the other end is a wedge-shaped structure pressure plate, which is higher than the upper surface of the buckle fixing seat 1.3.2, and a card groove is formed between the two; In actual application, the upper pressure plate assembly 3 or the lower pressure plate assembly 8 is pressed in through the guidance of the positioning pin 1.2, squeezing the wedge-shaped structure of the buckle 1.3.1 to generate an outward thrust, driving the buckle 1.3.1 to rotate to the open position with the buckle shaft 1.3.3 as the rotation center, so that the upper pressure plate assembly 3 or the lower pressure plate assembly 8 is pressed in smoothly. During this process, the first spring 1.3.4 is gradually compressed. After being pressed in, the thrust of the first spring 1.3.4 rebounds, causing the wedge-shaped structure pressure plate on the buckle 1.3.1 to press the upper pressure plate assembly 3 or the lower pressure plate assembly 8 to achieve rapid fixation.

[0035] The limit plate clamping assembly 1.4 is arranged in the slide groove at the edge position on the main body 1.1, and includes a clamping body 1.4.1, a slide 1.4.2, a second spring 1.4.3 and a lower fixed plate 1.4.4; the clamping body 1.4.1 includes a clamping plate and a connecting column installed at the lower part of the clamping plate, and the clamping plate is located on the upper side of the main body 1.1. After the connecting column passes through the slide groove, it is connected with the slide 1.4.2 and the lower fixed plate 1.4.4 in sequence, and the slide 1.4.2 is fitted with the lower surface of the main body 1.1 to realize that the limit plate clamping assembly 1.4 slides along the slide groove, and the part of the connecting column located on the lower side of the main body 1.1 is covered with a second spring 1.4.3; in actual application, the limit plate clamping assembly 1.4 is pushed to the outermost side through the slide groove of the main body 1.1, and the PCB is placed in sequence on the main body 1.1 through the positioning pins. 4. Pull up the limiting plate 2, press the main body 1.4.1, place the connecting column in the opening corresponding to the limiting plate 2, and quickly press the pressing plate of the pressing main body 1.4.1 and the limiting plate 2 through the tension rebound of the spring 1.4.3, that is, the limiting plate 2, PCB 4 and the main body 1.1 are pressed.

[0036] Furthermore, in one embodiment, Figures 4 to 6As shown, the cam adjustment assembly 6 includes a left and right slider assembly 6.1 and a front and rear slider assembly 6.2; the left and right slider assembly 6.1 includes left and right sliders 6.1.1, a top block 6.1.2, a side push block 6.1.3 and a third spring 6.1.4. The left and right sliders 6.1.1 are provided with a core limiting groove, and the side push blocks 6.1.3 are installed on two adjacent sides of the core limiting groove, and the core E rod 5.1 located in the core limiting groove is pressed by the third spring 6.1.4 from two vertical horizontal directions to ensure that the core will not loosen; the front and rear slider assembly 6.2 includes front and rear sliders 6.2.1, a cam 6.2.2 and a fourth spring 6.2.3, the front The rear slider 6.2.1 is provided with a left and right slider assembly limiting groove, a cam 6.2.2 is provided at the left bottom of the groove, and a fourth spring 6.2.3 is provided on the right side wall. The left and right slider assemblies 6.1 are embedded in the left and right slider assembly limiting grooves and are located between the cam 6.2.2 and the fourth spring 6.2.3, and are connected to the fourth spring 6.2.3; in actual application, the front and rear sliders 6.2.1 reserve adjustment margins on the left and right installation spaces for installing the left and right sliders 6.1.1. The left and right sliders are moved by pushing out the right spring, limiting the left cam, and changing the radius of the major and minor axes of the rotating cam, thereby realizing the movement of the left and right sliders, and then realizing the movement of the magnetic core in the left and right directions.

[0037] Similar to the left and right slider assemblies 6.1, the front and rear sliders 6.2.1 are fixed to grooves on the lower surface of the main body 1.1 via a front cam and rear spring, enabling overall fore-aft adjustment. Because the left and right slider assemblies 6.1 are integrally embedded within the front and rear slider assemblies 6.2, fore-aft and lateral adjustments are independent of each other, allowing for position adjustment in both horizontal directions.

[0038] Furthermore, in one embodiment, Figure 7 As shown, the upper pressure plate assembly 3 includes an upper pressure plate 3.1, an equal height limit bolt 3.2, a fifth spring 3.3 and an upper pressure block 3.4; the upper pressure block 3.4 is installed under the upper pressure plate 3.1 through the equal height limit bolt 3.2, and the equal height limit bolt 3.2 is covered with the fifth spring 3.3; the upper pressure plate assembly 3 is positioned by the positioning pin 1.2 on the main body assembly 1, and is tightened in the height direction by the snap assembly 1.3; after fixing, the upper pressure block 3.4 passes through the slot of the limit plate 2 to press the magnetic core I rod 5.2 and the magnetic core E rod 5.1; similarly, the composition style of the lower pressure plate assembly 8 is the same as the upper pressure plate assembly 3, and its upper pressure block passes through the slot on the lower cover to press the magnetic core E rod 5.1 and PCB4.

[0039] like Figure 8As shown, the PCB4 and the main component 1 are pressed together by the spring force F1 generated by the limit plate pressing assembly 1.4; the magnetic core E rod 5.1 and the PCB4 are pressed together by the spring force F2 of the lower pressure plate assembly 8; the magnetic core E rod 5.1 and the magnetic core I rod 5.2 are pressed together by the spring force F3 generated by the upper pressure plate assembly 3. The requirement F1>F2>F3 is achieved by changing the number, compression amount and elastic coefficient of the springs.

[0040] The adjustable device for assembling a planar transformer core according to the present invention has the following specific installation and use steps:

[0041] (1) Place the magnetic core 5.1 into the limiting grooves of the front and rear slider assemblies 6.1 on the main assembly 1 and press both sides tightly.

[0042] (2) Use a dispensing machine to apply adhesive glue on the bonding surface of the magnetic core.

[0043] (3) Place the PCB 4 through the positioning posts of the main assembly 1.

[0044] (4) Rotate the left and right, front and back cams of the cam adjustment assembly 6 and visually place the magnetic core E rod 5.1 in the center of the slot of the PCB 4.

[0045] (5) Use low modulus caulking glue to fill the gap between the magnetic core E rod 5.1 and the groove of PCB 4.

[0046] (6) The limit plate 2 is placed through the positioning column of the main component 1, and the limit plate is dragged to tighten the component 1.4 to fix it.

[0047] (7) Press the lower cover assembly 8 into the main assembly 1 so that the magnetic core E rod 5.1 is in close contact with and fixed to the lower surface of the PCB 4.

[0048] (8) Apply magnetic bead glue on the upper surface of the magnetic core E rod 5.1.

[0049] (9) Place the magnetic core I rod 5.2 into the limiting groove of the limiting plate 2.

[0050] (10) Press in the upper cover assembly 3 so that the magnetic core E rod 5.1 and I rod 5.2 are tightly attached by the magnetic bead glue.

[0051] (11) Place the assembled parts in a high temperature furnace for curing.

[0052] In summary, the packaging structure of the present invention has the advantages of small size, adjustable horizontal position of the magnetic core, high bonding consistency, convenient operation, high efficiency, etc., thereby improving the reliability of the magnetic core bonding during use.

[0053] The technical solutions of the present invention are not limited to the above embodiments. Any technical solutions obtained by modifying or equivalently replacing the technical solutions of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable device for assembling a planar transformer core, characterized in that: The device comprises a main body component (1), a limiting plate (2), an upper pressure plate component (3), a cam adjustment component (6) and a lower pressure plate component (8); the PCB (4) is installed in a groove on the upper surface of the main body component (1), and the cam adjustment component (6) is installed in a groove on the lower surface of the main body component (1), and is used to place the magnetic core in the center of the slot of the PCB (4), and can realize the position adjustment of the magnetic core in two horizontal directions; the limiting plate (2) is installed on the upper surface of the main body component (1), and is provided with a slot for limiting the first magnetic rod of the magnetic core, and the limiting plate (2) is used to press the PCB (4) and the main body component (1); the upper pressure plate component (3) and the lower pressure plate component (8) are respectively installed on the upper side and the lower side of the main body component (1), and are respectively used to realize the pressing between the two magnetic rods of the magnetic core and the pressing between the second magnetic rod of the magnetic core and the PCB board; The cam adjustment assembly (6) includes a left and right slider assembly (6.1) and a front and rear slider assembly (6.2); the left and right slider assembly (6.1) includes left and right sliders (6.1.1), a top block (6.1.2), a side push block (6.1.3) and a third spring (6.1.4); the left and right sliders (6.1.1) are provided with a magnetic core limiting groove; the side push block (6.1.3) is installed on two adjacent sides of the magnetic core limiting groove, and presses the second magnetic rod (5.1) of the magnetic core located in the magnetic core limiting groove from two perpendicular horizontal directions through the third spring (6.1.4) to ensure that the magnetic core does not loosen; the front and rear slider assembly (6.2) includes front and rear sliders (6.2.1), a cam (6.2.2) and a fourth spring ( 6.2.3), the front and rear sliders (6.2.1) are provided with left and right slider assembly limiting grooves, a cam (6.2.2) is provided at the left bottom of the groove, and a fourth spring (6.2.3) is provided on the right side wall, and the left and right slider assemblies (6.1) are embedded in the left and right slider assembly limiting grooves and are located between the cam (6.2.2) and the fourth spring (6.2.3), and are connected to the fourth spring (6.2.3); in actual application, the front and rear sliders (6.2.1) reserve adjustment margins on the left and right installation spaces for installing the left and right sliders (6.1.1), and the left and right sliders are moved by the right spring pushing, the left cam limiting action, and the radius change of the major and minor axes of the rotating cam, thereby realizing the movement of the left and right sliders, and then realizing the movement of the magnetic core in the left and right directions.

2. The adjustable device for assembling a planar transformer core according to claim 1, characterized in that: The device also includes a lower cover plate (7), which is installed on the lower surface of the main body component (1) and is located below the cam adjustment component (6) to prevent the cam adjustment component (6) from falling.

3. The adjustable device for assembling a planar transformer core according to claim 1 or 2, characterized in that: The main body assembly (1) comprises a main body (1.1), a positioning pin (1.2), a snap assembly (1.3) and a limit plate pressing assembly (1.4); the main body (1.1) is provided with positioning pins (1.2) and snap assembly (1.3) on the upper and lower sides thereof, respectively realizing positioning of the upper pressure plate assembly (3) and the lower pressure plate assembly (8) and pressing in the height direction; the limit plate pressing assembly (1.4) is used to realize pressing of the limit plate (2) and the main body (1.1).

4. The adjustable device for assembling a planar transformer core according to claim 3, characterized in that: Positioning columns for the limit plate (2) and the PCB (4) are processed on the main body (1.1), thereby achieving precise assembly between the limit plate (2), the PCB (4) and the main body component (1).

5. The adjustable device for assembling a planar transformer core according to claim 3, characterized in that: The buckle assembly (1.3) comprises a buckle (1.3.1), a buckle fixing seat (1.3.2), a buckle shaft (1.3.3) and a first spring (1.3.4); the buckle fixing seat (1.3.2) is mounted on the main body (1.1); the buckle (1.3.1) is movably connected to the buckle fixing seat (1.3.2) via the buckle shaft (1.3.3); one end of the buckle (1.3.1) is connected to the buckle fixing seat (1.3.2) via the first spring (1.3.4); the other end is a wedge-shaped pressure plate, which is higher than the upper surface of the buckle fixing seat (1.3.2), and a slot is formed between the two. In actual application, the upper pressure plate assembly (3) or the lower pressure plate assembly (8) is pressed in through the positioning pin (1.2), and the wedge-shaped structure of the buckle (1.3.1) is squeezed to generate an external thrust, which drives the buckle (1.3.1) to rotate to an open position with the buckle shaft (1.3.3) as the rotation center, so that the upper pressure plate assembly (3) or the lower pressure plate assembly (8) is pressed in smoothly. During this process, the first spring (1.3.4) is gradually compressed. After being pressed in, the thrust of the first spring (1.3.4) rebounds, so that the wedge-shaped structure pressure plate on the buckle (1.3.1) presses the upper pressure plate assembly (3) or the lower pressure plate assembly (8), thereby achieving rapid fixation.

6. The adjustable device for assembling a planar transformer core according to claim 3, characterized in that: The limit plate clamping assembly (1.4) is arranged in a slide groove at an edge position on the main body (1.1), and includes a clamping body (1.4.1), a slide (1.4.2), a second spring (1.4.3) and a lower fixed plate (1.4.4); the clamping body (1.4.1) includes a clamping plate and a connecting column installed at the lower part of the clamping plate, the clamping plate is located on the upper side of the main body (1.1), and the connecting column passes through the slide groove and is fixedly connected to the slide (1.4.2) and the lower fixed plate (1.4.4) in turn, and the slide (1.4.2) fits with the lower surface of the main body (1.1), so that the limit plate clamping assembly (1.4) can slide along the slide groove. , the portion of the connecting column located on the lower side of the main body (1.1) is sleeved with a second spring (1.4.3); in actual application, the limit plate clamping assembly (1.4) is pushed to the outermost side through the slide groove of the main body (1.1), and the PCB (4) and the limit plate (2) are sequentially placed on the main body (1.1) through the positioning pin, and the main body (1.4.1) is pulled up to be clamped, and the connecting column is placed in the opening corresponding to the limit plate (2), and the tension rebound of the spring (1.4.3) is used to achieve rapid clamping of the clamping plate of the clamping main body (1.4.1) and the limit plate (2), that is, mutual clamping between the limit plate (2), PCB (4) and the main body (1.1) is achieved.

7. The adjustable device for assembling a planar transformer core according to claim 1, characterized in that: The front and rear sliders (6.2.1) are fixed to the grooves on the lower surface of the main body (1.1) through the front cam and the rear spring in the same installation manner as the left and right slider assemblies (6.1), thereby realizing overall front and rear direction adjustment.

8. The adjustable device for assembling a planar transformer core according to claim 3, characterized in that: The upper pressure plate assembly (3) comprises an upper pressure plate (3.1), an equal height limit bolt (3.2), a fifth spring (3.3) and an upper pressure block (3.4); the upper pressure block (3.4) is installed below the upper pressure plate (3.1) through the equal height limit bolt (3.2), and the equal height limit bolt (3.2) is sleeved with the fifth spring (3.3); the upper pressure plate assembly (3) is positioned by the positioning pin (1.2) on the main assembly (1) and is pressed in the height direction by the snap assembly (1.3); after being fixed, the upper pressure block (3.4) passes through the slot of the limit plate (2) to press the first magnetic rod (5.2) and the second magnetic rod (5.1) of the magnetic core; similarly, the composition style of the lower pressure plate assembly (8) is the same as that of the upper pressure plate assembly (3), and its upper pressure block passes through the slot on the lower cover plate to press the second magnetic rod (5.1) and the PCB (4) of the magnetic core.

9. The adjustable device for assembling a planar transformer core according to any one of claims 4 to 8, characterized in that: The PCB (4) and the main body component (1) are pressed together by a spring force F1 generated by a limit plate pressing component (1.4); the second magnetic rod (5.1) of the magnetic core and the PCB (4) are pressed together by a spring force F2 of a lower pressing plate component (8); and the second magnetic rod (5.1) of the magnetic core and the first magnetic rod (5.2) of the magnetic core are pressed together by a spring force F3 generated by an upper pressing plate component (3), with the requirement that F1>F2>F3.

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