Transformer with copper sheets clamped and inserted

Abstract

The utility model relates to a transformer with copper sheets clamped and inserted, which comprises at least one cylindrical winding framework and magnetic cores assembled at two ends of the winding framework, two ends of the winding framework are respectively provided with a baffle plate, a winding groove is formed between the two baffle plates, a plurality of slots are arranged on the side wall of the winding groove at intervals, a copper sheet is clamped and inserted in each slot, and the copper sheets are inserted into the slots. And insulating films are arranged on two surfaces of the copper sheet. According to the transformer, the slots are formed in the side walls of the winding grooves, the copper sheets only need to be clamped and inserted in the slots, a baffle does not need to be additionally arranged on the winding grooves to place the copper sheets, mixing and matching of the copper sheets and the coil winding can be completed, the overall structure of the assembled transformer is more compact, the size is smaller under the same specification, and miniaturization of products is facilitated; in addition, the whole structure of the winding framework is simpler, and the production and mold opening cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field more specifically refers to a kind of transformer of clamping copper sheet. BACKGROUND

[0002] Transformer is the commonly used electronic component applied to various circuit boards to change ac voltage, usually including framework, primary winding, secondary winding and magnetic core formed by coil winding on framework, wherein, not all winding can only be composed of coil, part of transformer is assembled by multiple copper sheets and several groups of coils in sequence. For example, the prior application of the applicant, a kind of transformer capable of improving primary-secondary coupling degree (authorization announcement number: CN215496336U), it includes the transformer framework in the shape of cylinder and the magnetic core assembled on the upper and lower ends of the transformer framework, the transformer framework is provided with a plurality of baffles around from top to bottom, the winding slot for winding primary winding is formed between adjacent two baffles, the baffle includes top baffle, bottom baffle and at least one intermediate baffle, each baffle is provided with a slot for inserting secondary copper sheet.

[0003] Although the above-mentioned transformer can use coil winding and copper sheet mixedly, it is necessary to set baffles on the framework to fix and install copper sheet, especially when setting copper sheet in the winding slot, it is necessary to add intermediate baffle in the winding slot to set slot in the intermediate baffle. The design of the intermediate baffle greatly increases the length of the whole winding slot, and further increases the overall volume of the transformer, which is contrary to the current trend of miniaturization of electronic components. SUMMARY

[0004] Therefore, the utility model provides a kind of transformer of clamping copper sheet to solve the above-mentioned problems.

[0005] The utility model adopts the following technical solutions:

[0006] A kind of transformer of clamping copper sheet, including at least one winding framework in the shape of cylinder and the magnetic core assembled in both ends of winding framework, the both ends of winding framework are respectively provided with a baffle, winding slot is formed between two baffles, the side wall of winding slot is spaced apart and is provided with a plurality of slots, copper sheet is clamped in each slot, both sides of copper sheet are provided with insulating film.

[0007] Further, each slot is composed of two arc hollow parts and a recessed slot, the two arc hollow parts are symmetrically arranged on both sides of the circumferential side wall of the winding slot, and one end of the two arc hollow parts is communicated with the recessed slot, respectively.

[0008] Preferably, the copper sheet is a C-shaped copper sheet with an opening, and the opening of the copper sheet extends a pin for inserting a circuit board at each end.

[0009] Preferably, the other ends of the two arc-shaped hollows are spaced apart to form a positioning part for supporting the copper sheet.

[0010] Further, the outer side of the baffle is respectively provided with an assembling part for placing the copper sheet.

[0011] Preferably, the winding framework is two winding frameworks which are superimposed, and the two copper sheets on the adjacent baffles of the superimposed two winding frameworks are provided with a separation sheet.

[0012] From the above description of the structure of the utility model, compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model discloses a winding groove is provided with a slot in the side wall, and the copper sheet only needs to be clamped in the slot, so that the copper sheet and the coil winding can be mixed and matched without setting a baffle on the winding groove to place the copper sheet, and the overall structure of the assembled transformer is more compact, the volume is smaller under the same specification, and the product is miniaturized.

[0014] 2. The winding framework of the utility model can be single or multiple superimposed, and the adjacent copper sheets of the adjacent two winding frameworks can be selected according to the performance of the transformer, so that the transformer can meet the needs of various circuit boards. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the two winding framework superimposed transformers of the utility model.

[0016] Figure 2 It is a structure schematic view of the two winding framework superimposed transformers of the utility model. Figure 1

[0017] Figure 3 It is a structure schematic view of the two winding framework superimposed transformers of the utility model. Figure 1

[0018] Figure 4 It is a structure schematic view of the two winding framework superimposed transformers of the utility model.

[0019] Figure 5 It is a structure schematic view of the two winding framework superimposed transformers of the utility model.

[0020] Figure 6 It is a structure schematic view of the two winding framework superimposed transformers of the utility model.

[0021] Figure 7 It is a structure schematic view of the two winding framework superimposed transformers of the utility model.

[0022] ​​Wherein, the figure mark is: winding framework 10, magnetic core 20, copper sheet 30, baffle 11, winding slot 12, assembly part 111, slot 30, arc hollow part 31, recessed clamping groove 32, positioning part 33, isolation sheet 40. DETAILED DESCRIPTION

[0023] The specific implementation of the embodiments of the present application will be described below with reference to the accompanying drawings.

[0024] Referring to Figures 1 to 3 A transformer with clamped copper sheets comprises at least one winding framework 10 in the shape of a cylinder and magnetic cores 20 assembled at both ends of the winding framework 10. Each of the two ends of the winding framework 10 is provided with a baffle 11, and the two baffles 11 form a winding slot 12 therebetween. A plurality of slots 30 are arranged at intervals on the side wall of the winding slot 12, and a copper sheet 30 is clamped in each slot 30. The two surfaces of the copper sheet 30 are provided with insulating films (not shown in the figure).

[0025] Referring to Figure 3 Specifically, the outer side of each of the two baffles 11 of the winding framework 10 is provided with an assembly part 111 for accommodating the copper sheet 30. The copper sheet 30 is a C-shaped copper sheet 30 with an opening, and the two ends of the opening of the copper sheet 30 extend with pins for plugging into a circuit board.

[0026] Referring to Figures 4 to 6 Each slot 30 on the winding slot 12 is composed of two arc hollow parts 31 and a recessed clamping groove 32. The two arc hollow parts 31 are symmetrically arranged on the two sides of the circumferential side wall of the winding slot 12, and one end of each of the two arc hollow parts 31 communicates with the recessed clamping groove 32. The recessed clamping groove 32 has a groove bottom, which is lower than the outer side wall surface of the winding slot 12, and the groove bottom of the recessed clamping groove 32 can be used to hang the copper sheet 30. The other end of each of the two arc hollow parts 31 is separated by a positioning part 33, and the surface of the positioning part 33 is flush with the outer side wall surface of the winding slot 12. The positioning part 33 is used to hold the opening of the copper sheet 30, thereby playing a role in positioning the copper sheet 30.

[0027] Referring to Figure 1 , Figure 2 and Figure 7 The winding framework 10 of the present application can be a single winding framework 10 or a plurality of winding frameworks 10 stacked to form a transformer framework with higher power. In the present embodiment, two winding frameworks 10 are preferably stacked to form a transformer main framework, and two magnetic cores 20 are assembled at both ends of the main framework. An isolation sheet 40 is arranged between the two copper sheets 30 on the adjacent baffles 11 of the two stacked winding frameworks 10. The thickness of the isolation sheet 40 can be selected according to the performance requirements of the transformer, and the isolation sheet 40 is preferably made of insulating material.

[0028] The utility model discloses when assembling, only need to be inserted in the slot 30 of the winding groove 12 lateral wall with copper sheet 30, then can form winding on winding groove 12 with copper wire, need not extra set up baffle 11 on winding groove 12 to deposit copper sheet 30, can complete copper sheet 30, coil winding's mix and match, and the whole structure of transformer after assembling is more compact, under the same winding, the volume is smaller, is favorable to the miniaturization of product.

[0029] The above is only the specific implementation of the utility model, but the design concept of the utility model is not limited to this, and any non-essential change of the utility model by using this concept should belong to the act of infringing the protection scope of the utility model.

Claims

1. A transformer with insertable copper sheets, comprising at least one cylindrical winding frame and magnetic cores assembled at both ends of the winding frame, wherein a baffle is provided at each end of the winding frame, and a winding groove is formed between the two baffles, characterized in that: The sidewall of the winding groove is provided with a number of slots at intervals, and a copper sheet is inserted into each slot. The copper sheet has an insulating film on both sides.

2. A transformer with insertable copper sheets according to claim 1, characterized in that: Each slot consists of two arc-shaped hollow sections and a recessed slot. The two arc-shaped hollow sections are symmetrically arranged on both sides of the circumferential sidewall of the winding groove, and one end of each arc-shaped hollow section is connected to the recessed slot.

3. A transformer with insertable copper sheets according to claim 2, characterized in that: The copper sheet is a C-shaped copper sheet with an opening, and pins for connecting to a circuit board extend from both ends of the opening.

4. A transformer with insertable copper sheets according to claim 3, characterized in that: A positioning portion for holding the opening of the copper sheet is formed at a distance between the other ends of the two arc-shaped hollow portions.

5. A transformer with insertable copper sheets according to claim 1, characterized in that: The outer side of the baffle is provided with an assembly part for placing copper sheets.

6. A transformer with insertable copper sheets according to claim 5, characterized in that: The winding skeleton consists of two winding skeletons stacked together, with a spacer plate between two copper sheets on adjacent baffles of the stacked two winding skeletons.

Images