CN201608033U - Splicing type surface-mounted transformer framework - Google Patents

Splicing type surface-mounted transformer framework Download PDF

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Publication number
CN201608033U
CN201608033U CN200920260699XU CN200920260699U CN201608033U CN 201608033 U CN201608033 U CN 201608033U CN 200920260699X U CN200920260699X U CN 200920260699XU CN 200920260699 U CN200920260699 U CN 200920260699U CN 201608033 U CN201608033 U CN 201608033U
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low
pressure side
side skeleton
voltage coil
transformer framework
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Expired - Fee Related
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CN200920260699XU
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Chinese (zh)
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许登贤
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Abstract

The utility model discloses a splicing type surface-mounted transformer framework, which comprises a high voltage coil slot arranged on the periphery, a high voltage side framework, formed at one end, of a connecting cavity, a low voltage side framework inserted into the connecting cavity, and a magnetic core hole penetrating through the high voltage side framework and the low voltage side framework. Surface-mounted low voltage coils are arranged inside the low voltage side framework, the surface-mounted low voltage coils are embedded into the low voltage side framework by means of insert injection molding technique, the upper surfaces and the lower surfaces of the coils can be exposed from the surface of the low voltage side framework, and two surface-mounted lead feet of the surface-mounted low voltage coils respectively extend out from lead foot seats on two sides of the low voltage side framework. The transformer framework can conveniently detect unqualified products with deformed coils caused by extrusion of flowing of colloid in injection molding, simultaneously avoids exposing the coils, saves cost of design and mold making of some frameworks by being assembled and manufactured by means of splicing, and has fine consistency of the coils and easy processing.

Description

The spliced transformer framework that mounts
Technical field
The utility model belongs to the transformer technology field, specifically is a kind of spliced transformer framework that mounts of embedded mounted with low-voltage coil.
Background technology
Transformer framework is used to carry high pressure winding and low pressure winding, and traditional transformer framework comprises plastic skeleton, and the magnetic core hole is arranged in the skeleton, and the pin seat is extended at two ends, and skeleton is provided with high-voltage line ring recess and low-voltage line ring recess.In the subsequent handling,, with the terminal and corresponding pin welding of each coil, can constitute transformer again by the coil winding machine high and low line pressure circle of coiling in the high and low pressure coil area respectively.Its operation is loaded down with trivial details, and efficient is low, and repeatedly coiling usually causes skeleton low-pressure side pin stress deformation, and is smooth bad.
Given this, the patent No. is that the Chinese utility model of ZL 200720172351.6 has proposed a kind of transformer framework with mounted with low-voltage coil, it installs to structure of formation on the plastic skeleton with the mounted with low-voltage coil cover of moulding in advance, mounted with low-voltage coil can directly paste PCB by its pin, certain convenience is provided for the coiling of follow-up high-tension coil and the attachment process of transformer.But the consistency of the mounted with low-voltage coil of this scheme coiling moulding is undesirable, and in the subsequent handling, the mounted with low-voltage coil that is sleeved on the transformer framework is loosening easily.
Summary of the invention
Main purpose of the present utility model provides a kind of spliced transformer framework that mounts, the loosening easily and exposed defective with the mounted with low-voltage coil that solves existing transformer framework, and further make the producer can easily detect mounted with low-voltage coil in process of production whether to be out of shape, to guarantee the qualification rate of product.
The further purpose of the utility model improves the consistency and the workability of the mounted with low-voltage coil that mounts transformer framework.
For reaching above-mentioned main purpose, the utility model provides a kind of spliced transformer framework that mounts, it comprises: periphery is established the high-voltage line ring recess and is at one end formed a high-pressure side skeleton of connection chamber, be plugged in the low-pressure side skeleton that keeps mounted with low-voltage coil in the described connection chamber, and the magnetic core hole of perforation described high-pressure side skeleton and low-pressure side skeleton, described mounted with low-voltage coil is embedded in the described low-pressure side skeleton by the inserts Shooting Technique, and the upper surface of each circle coil or lower surface can expose from the surface of this low-pressure side skeleton, and two of mounted with low-voltage coil mount pin and stretch out from the pin seat of low-pressure side skeleton both sides respectively.
In order to reach consistency and the workability that improves the mounted with low-voltage coil mount transformer framework, the utility model provides mounted with low-voltage coil to adopt by copper coin and has struck out behind the shaped strip copper scheme that the one coil member is made in bending again.And a kind of shaped strip copper that is used to make mounted with low-voltage coil further is provided, this shaped strip copper comprises:
Openend is relatively and at a distance of the first and second two of certain intervals
Figure G200920260699XD00021
The shape part;
Be positioned at two
Figure G200920260699XD00022
Between the openend of shape part, two ends are respectively with first
Figure G200920260699XD00023
The head end and second of shape part The sweep that the tail end of shape part joins, this sweep is connected to form successively by three parallel straight shape copper strips, and the length of middle straight shape copper strips equals The top margin of shape part and the length sum of a side, the length of every straight shape copper strips on both sides equals
Figure G200920260699XD00026
The top margin of shape part and the length sum of 1/2 side;
Be positioned at second
Figure G200920260699XD00027
Two lead-out wire parts of shape part both sides, they are respectively with first
Figure G200920260699XD00028
The tail end and second of shape part
Figure G200920260699XD00029
The head end of shape part joins; With,
Respectively by two lead-out wires part to
Figure G200920260699XD000210
Extended two the pin parts that mount to be formed in the shape part outside.
The utility model adopts the inserts Shooting Technique that mounted with low-voltage coil and plastic skeleton are combined as a whole, mounted with low-voltage coil buries and overlays in the plastics that constitute skeleton, can not become flexible, can directly be affixed on PCB by its pin, greatly facilitate follow-up high-tension coil coiling and with the attachment process of circuit board, the smooth bad problem of transformer framework low-pressure side pin stress deformation that can avoid traditional handicraft repeatedly to wind the line causing.
The upper surface of each circle coil of its mounted with low-voltage coil or lower surface can expose from the surface of low-pressure side skeleton, can judge easily after injection mo(u)lding whether coil is out of shape, thereby be subjected to can detect because of injection moulding easily the time colloid extruding of flowing to make the substandard product of winding deformation.And after assembling, the exposed parts that is used on the mounted with low-voltage coil detect is coated by the connection chamber of skeleton end, high-pressure side, has avoided coil exposed outside.
Because adopting high-pressure side skeleton and low-pressure side skeleton two parts grafting assembling makes, can be combined into different transformers with different high-pressure side skeletons with a kind of low-pressure side skeleton, perhaps be combined into different transformers with different low-pressure side skeletons, thereby can save design, the die sinking expense of some skeleton with a kind of high-pressure side skeleton.
Because mounted with low-voltage coil is the one coil member of copper coin punching out bending and molding, so high conformity can be produced in batches, reduces cost.
Description of drawings
Fig. 1 is the spliced structural representation that mounts transformer framework of exemplary embodiments;
Fig. 2 is its explosive view, has dotted out embedded mounted with low-voltage coil among the figure;
The explosive view of Fig. 3 for seeing from the skeleton bottom side;
Fig. 4 is the structural representation of the mounted with low-voltage coil in Fig. 1 exemplary embodiments, and wherein, 12 is the high pressure pin, and it is with the mounted with low-voltage coil moulding;
Fig. 5 is the schematic diagram intention that is used for the section copper strip of shop drawings 4 mounted with low-voltage coil;
Fig. 6 is the structural representation of another embodiment, wherein is provided with snap device.
Embodiment
Be described further below in conjunction with the embodiment accompanying drawing.
With reference to Fig. 1-4, the spliced transformer framework that mounts of present embodiment is made with the inserted mode assembling by a high-pressure side skeleton 1 and a low-pressure side skeleton 2, and is provided with the magnetic core hole 3 that connects high-pressure side skeleton 1 and low-pressure side skeleton 2.
Wherein, skeleton 1 periphery in high-pressure side is established high-voltage line ring recess 11, one end outwards forms connection chamber 13, the other end extends outward a pin seat 18, pin seat 18 1 sides are provided with a high pressure pin 12, another high pressure pin 12 is arranged on pin seat 22 1 sides on the low-pressure side skeleton 2, and the bottom of high-pressure side skeleton 1 is provided with lead-in wire groove 17,19, is used to hold the lead-in wire from high-tension coil to high pressure pin 12.High pressure pin 12 comprises mounting pin and being used for and high-tension coil (when this high-tension coil is meant and makes transformer of being used for being connected with PCB, be wound on the coil in the high-voltage line ring recess 11) welding foot of welding, wherein, mount pin and adopt ∪ shape pin, with the contact area of increase, mount the pin that pin also can adopt other analogous shapes such as " Qian " shape with PCB.
Connection chamber 13 is surrounded by base plate, biside plate and top board, is formed with the groove 16 for pin seat 22 insertions of low-pressure side skeleton 2 between the lower end of base plate and biside plate.
Magnetic core cover 14 is set in the connection chamber 13, after low- pressure side skeleton 2 and 1 assembling of high-pressure side skeleton, the described magnetic core cover 14 magnetic core holes that are positioned on the low-pressure side skeleton 2.This magnetic core cover 14 can fully guarantee to assemble the spacing between back low-voltage coil 21 and the iron core, guarantees can not punctured by high-tension current.
Keep a mounted with low-voltage coil 21 in the low-pressure side skeleton 2, the two sides of low-pressure side skeleton 2 respectively form a pin seat 22 at the place, base.Mounted with low-voltage coil 21 is embedded in the described low-pressure side skeleton 2 by the inserts Shooting Technique and the upper surface 211 ' of each circle coil exposes from the upper surface of this low-pressure side skeleton 2, and two of mounted with low-voltage coil 21 mount pin 212 and stretch out from the pin seat 22 of low-pressure side skeleton 2 both sides respectively.Can judge easily by the upper surface 211 ' that exposes whether mounted with low-voltage coil 21 is out of shape, guarantee the qualification rate of product.
On the lateral wall of low-pressure side skeleton 2, the position relative with the room between mounted with low-voltage coil 21 every adjacent two circles is provided with through hole 23 or recess, the cross section of through hole 23 and recess can be bar shaped or circle etc., this through hole 23 or recess be when injection mo(u)lding because of the positioning salient on low-pressure side skeleton 2 moulds forms, plastics were pinched together with the adjacent turn of coil when this positioning salient was used to avoid injection mo(u)lding.
Low-pressure side skeleton 2 is plugged in the connection chamber 13 of high-pressure side skeleton 1, fastens as one with high-pressure side skeleton 1, constitutes the spliced transformer framework that mounts.Fastening means can adopt fastening means commonly used, as adopting tight fit mode, adhesive means, buckle mode etc.Do not design snap device in Fig. 1-3 illustrated embodiment, can adopt tight fit mode or adhesive means to realize the fastening of low-pressure side skeleton 2 and high-pressure side skeleton 1.Mesolow side skeleton 2 embodiment illustrated in fig. 6 adopts the buckle mode fastening with high-pressure side skeleton 1, its snap device comprises with holes 15 ' book sheet 15 that is arranged on connection chamber 13 porch on the high-pressure side skeleton 1 and the projection 25 that is arranged on relevant position on the low-pressure side skeleton 2, when book sheet 15 is pushed by projection 25 deformation can take place, make in the hole 15 ' on the projection 25 embedding book sheets 15.Show one group of snap device among Fig. 6, many groups also can be set, can also adopt the snap device of other form.
With reference to Fig. 2,4, mounted with low-voltage coil 21 in the low-pressure side skeleton 2 comprise coiler part 211, two lead-out wires 213 and two and mount pin 212, wherein, coiler part 211 has 2.75 circles, article two, the outer extreme direction towards described low-pressure side skeleton 2 stretches out lead-out wire 213 from the two ends of this coiler part 211 respectively, and becomes the angle of 85-95 degree with the cross section of this coiler part 211.Mounted with low-voltage coil 21 is that the copper coin by certain thickness (as 0.2-1.5mm) strikes out behind the shaped strip copper one coil member that bending is again made, and has high conformity, can produce the characteristics that cost is low in batches.As required, the number of turn of coiler part 211 can be the arbitrary numerical value in 1.75~10 circles, but be not limited to this, the designer can be provided with the number of turn of coiler part 211 as required flexibly, and the sectional area of copper strips, cross sectional shape all can be provided with according to actual needs flexibly.Mounted with low-voltage coil also can adopt copper cash coiling moulding.
Shown in Figure 5 is a kind of shaped strip copper 5 that can adopt the above-mentioned mounted with low-voltage coil 21 of impact style bending and molding, and this shaped strip copper can be made by a copper coin punching press.With reference to Fig. 5, this shaped strip copper 5 comprises: first
Figure G200920260699XD00051
Shape part
51, second
Figure G200920260699XD00052
Shape part
55, sweep 52, two lead-out wire parts 54 and 56, two are to be formed mounts pin part 53 and 57.First
Figure G200920260699XD00053
Shape part 51 and second
Figure G200920260699XD00054
The openend of shape part 55 is relatively and at a distance of certain intervals.Sweep 52 is positioned at first
Figure G200920260699XD00055
Shape part 51 and second
Figure G200920260699XD00056
Between the openend of shape part 55, two ends are respectively with first
Figure G200920260699XD00057
The head end of shape part 51 and second
Figure G200920260699XD00058
The tail end of shape part 55 joins.This sweep 52 is connected to form successively by three parallel straight copper strips 521,522,523, and the length of middle straight copper strips 522 equals The top margin 511 of shape part and the length sum of a side 512, the equal in length of straight copper strips 522 and straight copper strips 523, for
Figure G200920260699XD000510
The top margin 511 of shape part and the length sum of 1/2 side 512.Article two, lead-out wire part 56,54 is positioned at second Shape part 55 both sides are respectively with first
Figure G200920260699XD000512
The tail end of shape part 51 and second
Figure G200920260699XD000513
The head end of shape part 55 joins.Two to be formed mount pin part 53 and 57 respectively by two lead-out wire parts 54 and 56 to
Figure G200920260699XD000514
Extend in the shape part outside.
In the shaped strip copper of Fig. 5, the latter half is to be used in bending, Shooting Technique, the part that is connected with equipment, after injection mo(u)lding, this part can be cut, wherein treating that cut-off part adopts pre-breaking process to handle, promptly, the cut-off part quilt for the treatment of of copper strips cuts off a part in advance, and the subsides PCB of pin does not need once more the scolding tin envelope to cut off mouth after being in moulding like this.In addition, comprised also in the shaped strip copper of Fig. 5 that a high pressure to be formed mounts pin part 50.
Above-mentioned two
Figure G200920260699XD000515
Shape part (being the rectangle part of openings at one side) can be with the oval part of an end opening
Figure G200920260699XD000516
Or
Figure G200920260699XD000517
Or the like approximate shape substitute.

Claims (10)

1. spliced transformer framework that mounts, it is characterized in that, comprise: periphery is established high-voltage line ring recess (11) and is at one end formed a high-pressure side skeleton (1) of connection chamber (13), be plugged in the low-pressure side skeleton (2) that keeps mounted with low-voltage coil (21) in the described connection chamber (13), and the magnetic core hole (3) of perforation described high-pressure side skeleton (1) and low-pressure side skeleton (2), described mounted with low-voltage coil (21) is embedded in the described low-pressure side skeleton (2) by the inserts Shooting Technique, and two of mounted with low-voltage coil (21) mount pin (212) and stretch out from the pin seat (22) of low-pressure side skeleton (2) both sides respectively.
2. the spliced transformer framework that mounts according to claim 1, it is characterized in that: in the connection chamber (13) of described high-pressure side skeleton (1) end magnetic core cover (14) is set, after low-pressure side skeleton (2) and high-pressure side skeleton (1) assembling, described magnetic core cover (14) is positioned at the magnetic core hole on the low-pressure side skeleton (2).
3. the spliced transformer framework that mounts according to claim 1 is characterized in that: on the lateral wall of described low-pressure side skeleton (2) with every adjacent two circles of mounted with low-voltage coil (21) between relative position, room recess or through hole (23) are arranged.
4. the spliced transformer framework that mounts according to claim 1, it is characterized in that: described mounted with low-voltage coil (21) comprises coiler part (211), two lead-out wires (213) and two and mounts pin (212), wherein, coiler part (211) has 1.75~10 circles, article two, the outer extreme direction towards described low-pressure side skeleton (2) stretches out lead-out wire (213) from the two ends of this coiler part (211) respectively, and becomes the angle of 85-95 degree with the cross section of this coiler part (211).
5. the spliced transformer framework that mounts according to claim 4, it is characterized in that: the coiler part of described mounted with low-voltage coil (21) has 2.75 circles, and this mounted with low-voltage coil (21) is to strike out behind the shaped strip copper one coil member that bending is again made by copper coin.
6. the spliced transformer framework that mounts according to claim 1, it is characterized in that: the connection chamber (13) of described high-pressure side skeleton (1) end is surrounded by base plate, biside plate and top board, is formed with the groove (16) for pin seat (22) insertion of low-pressure side skeleton (2) between the lower end of base plate and biside plate.
7. the spliced transformer framework that mounts according to claim 1, it is characterized in that: establish snap device between described high-pressure side skeleton (1) and the low-pressure side skeleton (2), described snap device comprises the book sheet (15) of (15 ') with holes that be arranged on last connection chamber (13) porch of high-pressure side skeleton (1) and is arranged on the projection (25) that low-pressure side skeleton (2) is gone up the relevant position.
8. the spliced transformer framework that mounts according to claim 1 is characterized in that: the upper surface (211 ') of each circle of described mounted with low-voltage coil (21) or lower surface expose from the surface of low-pressure side skeleton (2).
9. the spliced transformer framework that mounts according to claim 1 is characterized in that: mounting pin is U-shaped pin or " Qian " shape pin.
10. a shaped strip copper that is used to make mounted with low-voltage coil is characterized in that, this shaped strip copper comprises:
Openend is relatively and at a distance of the first and second two of certain intervals
Figure F200920260699XC00021
Shape part (51,55);
Be positioned at two
Figure F200920260699XC00022
Between the openend of shape part (51,55), two ends are respectively with first
Figure F200920260699XC00023
The head end and second of shape part
Figure F200920260699XC00024
The sweep (52) that the tail end of shape part joins, this sweep (52) is connected to form successively by three parallel straight shape copper strips (521,522,523), and the length of middle straight shape copper strips (522) equals
Figure F200920260699XC00025
The top margin (511) of shape part (51 or 55) and the length sum of a side (512), the length of every straight shape copper strips (521,523) on both sides equals
Figure F200920260699XC00026
The top margin (511) of shape part and the length sum of 1/2 side (512);
Be positioned at second
Figure F200920260699XC00027
Two lead-out wire parts (54,56) of shape part (55) both sides, they are respectively with first The tail end and second of shape part (51)
Figure F200920260699XC00029
The head end of shape part (55) joins; With,
Respectively by two lead-out wires parts (54,56) to
Figure F200920260699XC000210
Extended two the pin parts (53,57) that mount to be formed in the shape part outside.
CN200920260699XU 2009-11-26 2009-11-26 Splicing type surface-mounted transformer framework Expired - Fee Related CN201608033U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360800A (en) * 2011-08-01 2012-02-22 深圳冠顺微电子有限公司 Winding method and structure for transformer, and transformer
CN106057438A (en) * 2016-07-05 2016-10-26 海宁联丰东进电子有限公司 Flat wire vertical winding type large-current power inductor
CN110265210A (en) * 2019-07-12 2019-09-20 东莞铭普光磁股份有限公司 A kind of current transformer
CN110634672A (en) * 2019-08-19 2019-12-31 许文豪 Transformer winding framework
CN112823402A (en) * 2018-12-28 2021-05-18 株式会社Mst科技 Power factor correction coil device and manufacturing method thereof
CN113764155A (en) * 2021-09-15 2021-12-07 深圳市航智精密电子有限公司 PCB type current sensor accessory, production method thereof and current sensor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360800A (en) * 2011-08-01 2012-02-22 深圳冠顺微电子有限公司 Winding method and structure for transformer, and transformer
CN102360800B (en) * 2011-08-01 2014-04-02 朱威 Winding method and structure for transformer, and transformer
CN106057438A (en) * 2016-07-05 2016-10-26 海宁联丰东进电子有限公司 Flat wire vertical winding type large-current power inductor
CN106057438B (en) * 2016-07-05 2018-11-30 海宁联丰东进电子有限公司 A kind of Flat wire vertical geometric pattern high current power inductance
CN112823402A (en) * 2018-12-28 2021-05-18 株式会社Mst科技 Power factor correction coil device and manufacturing method thereof
CN110265210A (en) * 2019-07-12 2019-09-20 东莞铭普光磁股份有限公司 A kind of current transformer
CN110634672A (en) * 2019-08-19 2019-12-31 许文豪 Transformer winding framework
CN113764155A (en) * 2021-09-15 2021-12-07 深圳市航智精密电子有限公司 PCB type current sensor accessory, production method thereof and current sensor
CN113764155B (en) * 2021-09-15 2024-02-20 深圳市航智精密电子有限公司 PCB type current sensor accessory, production method thereof and current sensor

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Granted publication date: 20101013

Termination date: 20121126