Transformer

Abstract

The utility model discloses a transformer which comprises a magnetic core and a framework arranged on the magnetic core in a sleeved mode, fixed baffles are arranged at the two ends of the framework, a plurality of movable baffles arranged at intervals are arranged on the framework in a sleeved mode, the framework is divided into a plurality of winding areas through the movable baffles, and coils are wound in the winding areas. The movable baffle is movably connected with the framework and used for moving along the framework to adjust the width of the winding area. The coil is wound on the winding area between the fixed baffle and the movable baffle to form the resonant inductor, the movable baffle is movably connected with the framework, and the width of the winding area can be adjusted by moving the movable baffle along the framework, so that the breadth size of the resonant inductor can be adjusted, and the leakage inductance of the resonant inductor can be adjusted.

Description

Technical Field

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

[0002] A transformer is an electrical device used to change the voltage level of alternating current while maintaining the conservation of power. It is mainly composed of two or more coils (usually coils wound with copper wire) that transfer energy through magnetic coupling.

[0003] Traditional transformers require a pair or half a pair of magnetic cores to make resonant inductors. The width of the resonant inductor area is fixed and the leakage inductance cannot be adjusted. Utility Model Content

[0004] The main purpose of the utility model is to provide a transformer, aiming to solve the problem that the traditional transformer uses a pair or half a pair of magnetic cores to make a resonant inductor, the width of the resonant inductor is fixed, and the leakage inductance cannot be adjusted.

[0005] To achieve the above object, the utility model provides a transformer, comprising a magnetic core, a frame sleeved on the magnetic core, fixed baffles are provided at both ends of the frame, a plurality of movable baffles are sleeved on the frame at intervals, the plurality of movable baffles separate the frame into a plurality of winding areas, and a wire package is wound in the winding area;

[0006] The movable baffle is movably connected to the frame, and the movable baffle is used to move along the frame to adjust the width of the winding area.

[0007] Optionally, a side surface of the frame is provided with a plurality of socket groups along its length direction, the socket groups include a plurality of sockets arranged circumferentially along the frame, and the movable baffle is provided with pins connected with the sockets.

[0008] Optionally, adhesive is applied between the movable baffle and the frame, and the movable baffle and the frame are fixed by the adhesive.

[0009] Optionally, several jack groups are arranged at equal intervals.

[0010] Optionally, a slide groove is provided on the side of the frame along its length direction, and the movable baffle is provided with a sliding block extending into the slide groove.

[0011] Optionally, a telescopic positioning rod extending radially along the frame is provided on the movable baffle, and the telescopic positioning rod is used to be telescoped toward the frame to fix or release the movable baffle.

[0012] Optionally, the top and the bottom of both end surfaces of the magnetic core are provided with limiting grooves, and the fixed baffle is provided with limiting blocks abutting against the limiting grooves.

[0013] Optionally, the number of the movable baffles is set to at least two.

[0014] Compared with the prior art, the utility model has the following beneficial effects: a resonant inductor is formed by winding a wire package on the winding area between a fixed baffle and a movable baffle, and since the movable baffle is movably connected to the frame, the width of the winding area can be adjusted by moving the movable baffle along the frame, thereby adjusting the width of the resonant inductor to achieve the adjustment of the leakage inductance of the resonant inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is an overall exploded schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the decomposition of the skeleton of the utility model.

[0019] Description of Figure Numbers:

[0020] 1. Magnetic core; 2. Skeleton; 3. Wire package; 4. Base; 11. Limiting groove; 21. Fixed baffle; 22. Movable baffle; 23. Winding area; 24. Socket; 41. Wire hole; 211. Limiting block; 221. Latch; 222. Half baffle.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] 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.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. 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 utility model.

[0025] The utility model provides a transformer. Figures 1 to 3 This is a specific embodiment of the transformer provided by the utility model.

[0026] Reference Figures 1 to 3 The transformer comprises a magnetic core 1, a frame 2 sleeved on the magnetic core 1, fixed baffles 21 are provided at both ends of the frame 2, a plurality of movable baffles 22 are sleeved on the frame 2, and the plurality of movable baffles 22 separate the frame 2 into a plurality of winding areas 23, and a wire package 3 is wound in the winding area 23;

[0027] The movable baffle 22 is movably connected to the frame 2 , and the movable baffle 22 is used to move along the frame 2 to adjust the width of the winding area 23 .

[0028] In this embodiment, a resonant inductor is formed by winding a coil 3 on a winding area 23 between a fixed baffle 21 and a movable baffle 22. Since the movable baffle 22 is movably connected to the frame 2, the width of the winding area 23 can be adjusted by moving the movable baffle 22 along the frame 2, thereby adjusting the width of the resonant inductor to adjust the leakage inductance of the resonant inductor. A conventional transformer uses a pair or half of a pair of magnetic cores 1 as a resonant inductor, and the extra pair or half of the magnetic core 1 needs to be equipped with a frame 2 and a coil 3, which has the problems of large size and high cost. In this embodiment, the resonant inductor is made by using the first winding area 23, and no extra magnetic core 1 is required, so the size is small and the cost is low.

[0029] In one embodiment, the side surface of the frame 2 is provided with a plurality of sockets 24 groups along the length direction thereof, and the sockets 24 groups include a plurality of sockets 24 arranged circumferentially along the frame 2, and the movable baffle 22 is provided with a plug 221 plugged with the plug 24. In this embodiment, the movable baffle 22 and the frame 2 are detachably arranged, and the plug 221 of the movable baffle 22 is usually inserted into different groups of sockets 24 on the frame 2, so that the movable baffle 22 can be moved, and the position of the movable baffle 22 can be adjusted, thereby adjusting the width of the winding area 23. Since the position of the socket 24 group is fixed, the adjustable position of the movable baffle 22 is also fixed, and the adjustable width of the winding area 23 is also some fixed values. The advantage of this arrangement is that the adjustment accuracy is high and the adjustment process is simple and convenient.

[0030] Furthermore, adhesive is applied between the movable baffle 22 and the frame 2, and the movable baffle 22 and the frame 2 are fixed by the adhesive. In this embodiment, the movable baffle 22 and the frame 2 can be further fixed by the adhesive to prevent the movable baffle 22 from falling off during the operation of the transformer, which may cause the transformer to fail to work normally. The adhesive application process is as follows: before assembling the movable baffle 22, select the group of sockets 24 corresponding to the installation position of the movable baffle 22 according to the specifications of the required transformer, and then apply adhesive on the fitting surface of the movable baffle 22 (and the frame 2) and the latch 221, and then install the movable baffle 22.

[0031] In another embodiment, a slide groove is provided on the side of the frame 2 along its length direction, and the movable baffle 22 is provided with a slider (not shown in the figure) extending into the slide groove. In this embodiment, the movable baffle 22 can slide along the frame 2 through the cooperation of the slide groove and the slider, so that the width of the winding area 23 can be adjusted. The advantage of this arrangement is that the width of the winding area 23 can be adjusted arbitrarily without being limited to a few fixed values, and a plurality of movable baffles 22 can share a slide groove, and the processing cost is low.

[0032] Furthermore, the movable baffle 22 is provided with a telescopic positioning rod (not shown in the figure) extending radially along the frame 2, and the telescopic positioning rod is used to be extended toward the frame 2 to fix or release the movable baffle 22. In this embodiment, the telescopic positioning rod is connected to the movable baffle 22 by a thread, and the telescopic positioning rod can be extended and retracted by rotating the telescopic positioning rod. When the telescopic positioning rod is extended, its end abuts against the side of the frame 2, and the movable baffle 22 can be fixed by the friction between the telescopic positioning rod and the frame 2.

[0033] Specifically, the movable baffle 22 includes two half baffles 222 symmetrically mounted on the frame 2, and the two half baffles 222 are spaced apart. In this embodiment, by dividing the movable baffle 22 into two half baffles 222, when installing and removing the movable baffle 22, it is not necessary to remove the frame 2, and installation and removal are more convenient.

[0034] Furthermore, the top and bottom of both end surfaces of the magnetic core 1 are provided with limiting grooves 11, and the fixed baffle 21 is provided with limiting blocks 211 abutting against the limiting grooves 11. In this embodiment, the cooperation between the limiting blocks 211 and the limiting grooves 11 can improve the assembly stability of the skeleton 2 and the magnetic core 1, making the overall structure more stable and avoiding vibration and looseness during operation.

[0035] Furthermore, the transformer further includes a base 4 disposed on one side of the magnetic core 1, and the base 4 is provided with a wire hole 41 plugged into the pin of the wire package 3. In this embodiment, the pin of the wire package 3 is used to connect to the PCB board, and the pin of the wire package 3 can be fixed through the wire hole 41 to ensure that the connection between the pin of the wire package 3 and the PCB board is stable and reliable, and to avoid loosening of the connection between the pin of the wire package 3 and the PCB board due to external vibration.

[0036] Further, the number of the movable baffles 22 is set to at least two. Optionally, the number of the movable baffles 22 is two, and the two movable baffles 22 sequentially separate the frame 2 into a first winding area 23 located between the fixed baffle 21 and the movable baffle 22, and a second winding area 23 located between the movable baffles 22, the first winding area 23 is wound around the coil 3 to form a resonant inductor, and the second winding area 23 is wound around the coil 3 to form a main transformer.

[0037] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transformer, characterized in that: It comprises a magnetic core and a frame sleeved on the magnetic core, wherein both ends of the frame are provided with fixed baffles, and the frame is sleeved with a plurality of movable baffles arranged at intervals, wherein the plurality of movable baffles separate the frame into a plurality of winding areas, and a wire package is wound in the winding area; The movable baffle is movably connected to the frame, and the movable baffle is used to move along the frame to adjust the width of the winding area.

2. The transformer according to claim 1, characterized in that A plurality of socket groups are provided on the side of the frame along the length direction thereof. The socket groups include a plurality of sockets arranged along the circumference of the frame. The movable baffle is provided with pins connected with the sockets.

3. The transformer according to claim 2, characterized in that: Adhesive is applied between the movable baffle and the frame, and the movable baffle and the frame are fixed by the adhesive.

4. The transformer according to claim 1, characterized in that A sliding groove is arranged on the side of the frame along its length direction, and a sliding block extending into the sliding groove is arranged on the movable baffle.

5. The transformer according to claim 4, characterized in that The movable baffle is provided with a telescopic positioning rod extending radially along the frame, and the telescopic positioning rod is used to telescope toward the frame to fix or release the movable baffle.

6. The transformer according to claim 1, characterized in that The movable baffle comprises two half baffles symmetrically mounted on the frame, and the two half baffles are arranged at an interval.

7. The transformer according to claim 1, characterized in that The top and the bottom of both end surfaces of the magnetic core are provided with limiting grooves, and the fixed baffle is provided with limiting blocks abutting against the limiting grooves.

8. The transformer according to claim 1, characterized in that The transformer also includes a base arranged on one side of the magnetic core, and the base is provided with a wire hole plugged with the outlet pin of the wire package.

9. The transformer according to claim 1, characterized in that: The number of the movable baffles is set to be at least two.

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