CN210516439U - Transformer capable of realizing reliable grounding of magnetic core - Google Patents
Transformer capable of realizing reliable grounding of magnetic core Download PDFInfo
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- CN210516439U CN210516439U CN201921948265.9U CN201921948265U CN210516439U CN 210516439 U CN210516439 U CN 210516439U CN 201921948265 U CN201921948265 U CN 201921948265U CN 210516439 U CN210516439 U CN 210516439U
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- magnetic core
- transformer
- grounding
- pin
- stitch
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Abstract
The utility model relates to a realize transformer of magnetic core reliable ground connection, including the inside sunken wire winding groove that is provided with in middle part of the skeleton of transformer, first magnetic core, second magnetic core, coil and stitch, the coil is around establishing in the wire winding groove, the center of skeleton of transformer link up and is provided with the magnetic core hole, first magnetic core and second magnetic core are pegged graft in the inside in this magnetic core hole from the both ends in magnetic core hole respectively, a stitch for ground connection runs through the skeleton of transformer and makes its both ends expose in the skeleton of transformer, and a first end that is used for the stitch of ground connection is used for ground connection, a second end that is used for the stitch of ground connection extends to second magnetic core and electrically conductive connection, the junction coating of a second end and the second magnetic core for the stitch of ground connection has electrically conductive glue. The utility model discloses realize that the transformer of the reliable ground connection of magnetic core has cancelled and has reserved the lead wire, has avoided hanging manual work such as lead wire or subsides copper foil to realized full automated production, improved the transformer quality when improving production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the transformer, especially, relate to a realize transformer of magnetic core reliable ground connection.
Background
The high-frequency transformer is one of important electronic components in various electronic product circuits, a lead wire led out from a primary pin on the high-frequency transformer is mainly used for connecting a magnetic core of the transformer and a grounding pin, and the lead wire conducts the magnetic core and the grounding pin, namely a distributed capacitor is added between a coil of the high-frequency transformer and a ground wire, so that noise generated during the operation of the coil of the high-frequency transformer can be effectively led into the ground wire, and the EMI (electro-magnetic interference) of a product is reduced. Currently, the industry generally adopts a way of reserving a lead and adding a conductive adhesive or pasting a copper foil and adding a lead to ground: 1. the consistency of the mode of reserving the lead and adding the conductive adhesive is poor, the position of the lead is easy to deviate, the conductive adhesive cannot contact the lead, poor grounding can be caused, the quality risk is high, automatic assembly cannot be conducted during magnetic core assembly, and the production efficiency is low; 2. the copper foil pasting mode has good consistency and quality stability, but the material cost is high, the magnetic core cannot be automatically assembled, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a realize transformer of magnetic core reliable ground connection, the mode uniformity that aims at solving the reservation lead wire among the prior art and add some conductive adhesive is not good and the unable leading-in automatic equipment of mode of copper foil leads to the technical problem that production is very inefficiency.
In order to achieve the above object, an embodiment of the present invention provides a transformer for realizing reliable grounding of a magnetic core, which comprises a transformer bobbin, a first magnetic core, a second magnetic core, a coil and pins, the middle part of the transformer framework is inwards sunken to be provided with a winding groove, the coil is wound in the winding groove, the center of the transformer framework is provided with a magnetic core hole in a through way, the first magnetic core and the second magnetic core are respectively inserted into the magnetic core hole from two ends of the magnetic core hole, the pins for grounding penetrate through the transformer framework to enable two ends of the pins to be exposed out of the transformer framework, and a first end of the pin for grounding is used for grounding connection, a second end of the pin for grounding extends to the second magnetic core and is connected in an electrically conductive manner, and at the same time, and the connecting part of the second end part of the pin for grounding and the second magnetic core is coated with conductive glue.
Optionally, the second end of the pin for grounding and the first end of the pin for grounding are in the same vertical line arrangement, and the top of the second end of the pin for grounding is conductively connected with the second magnetic core.
Optionally, the second end of the pin for grounding is bent with respect to the first end of the pin for grounding, and a side of the second end of the pin for grounding is electrically connected to the second magnetic core.
Optionally, the second end of the pin for grounding is bent at 90 degrees relative to the first end of the pin for grounding.
Optionally, the conductive glue is silver paste or graphite.
Optionally, the transformer bobbin includes an upper baffle, a winding portion, and a lower baffle, the upper baffle, the winding portion, and the lower baffle are combined with each other to form the winding slot, the winding portion is hollow and penetrates through the upper baffle and the lower baffle respectively to form the magnetic core hole, and the pin is disposed on the lower baffle.
Optionally, the cross-sectional areas of the upper flap and the lower flap are larger than the cross-sectional area of the winding portion.
Optionally, the upper baffle and the lower baffle are provided with magnetic core fixing retaining walls on two sides close to the magnetic core hole, and magnetic core clamping grooves are formed between the magnetic core fixing retaining walls on the two sides.
Optionally, the outer surface of the coil is wrapped with an insulating tape.
The embodiment of the utility model provides an above-mentioned one or more technical scheme in the transformer of realization magnetic core reliable ground connection have one of following technological effect at least: compared with the prior art, the utility model discloses the transformer that realizes the reliable ground connection of magnetic core has cancelled and has reserved the lead wire, has avoided hanging the manual work such as lead wire or pasting the copper foil, specifically through running through the transformer skeleton with the stitch that is used for ground connection and make its both ends expose in the transformer skeleton to the first end of the stitch that is used for ground connection, and the second end of the stitch that is used for ground connection extends to the second magnetic core and conductive connection, thereby realizes reliable ground connection; meanwhile, the connecting part of the second end part of the pin for grounding and the second magnetic core is coated with conductive glue, so that the function of enhancing connection and fixation with the second magnetic core is achieved. It can be seen that the utility model discloses realize the transformer of the reliable ground connection of magnetic core has following advantage: 1. the product can realize full-automatic production: the magnetic core can be assembled automatically, and the operation procedures of winding, soldering, dispensing, testing and the like can be combined for integrated automatic production; 2. the magnetic core grounding process of hanging and reserving the lead wires is cancelled, so that the labor can be greatly saved, the dependence on personnel and hands is reduced, the production efficiency is improved, and the quality of the transformer is improved; 3. the processing cost and the material cost are lower, and the cost is lower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a perspective view of a transformer for realizing reliable grounding of a magnetic core according to an embodiment of the present invention.
Fig. 2 is an exploded schematic view of a transformer for realizing reliable grounding of a magnetic core according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a first state of the transformer bobbin and the pin connection provided by the embodiment of the present invention.
Fig. 4 is a schematic diagram of a second state of the transformer bobbin and the pin connection provided by the embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-transformer framework 11-winding slot 12-magnetic core hole
13-upper baffle 14-winding part 15-lower baffle
16-magnetic core fixed retaining wall 17-magnetic core clamping groove 2-first magnetic core
3-second magnetic core 4-coil 5-pin
51-first end 52-second end 6-conductive glue
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In an embodiment of the present invention, as shown in fig. 1-2, a transformer for realizing reliable grounding of a magnetic core includes a transformer bobbin 1, a first magnetic core 2, a second magnetic core 3, a coil 4 and a pin 5.
The middle of the transformer framework 1 is provided with a winding groove 11 in an inward concave manner, the coil 4 is wound in the winding groove 11, the center of the transformer framework 1 is provided with a magnetic core hole 12 in a penetrating manner, and the first magnetic core 2 and the second magnetic core 3 are respectively inserted into the magnetic core hole 12 from two ends of the magnetic core hole 12.
Furthermore, the utility model discloses realize that the transformer of the reliable ground connection of magnetic core has cancelled and has reserved the lead wire, has avoided hanging manual work such as lead wire or subsides copper foil, through to being used for ground connection stitch 5 structure improves, realizes being used for ground connection stitch 5 with 3 direct contact of second magnetic core switches on and realize ground connection, need not extra earth connection. Specifically, the pin 5 for grounding penetrates through the transformer bobbin 1 so that two ends thereof are exposed out of the transformer bobbin 1, the first end 51 of the pin 5 for grounding is used for grounding connection, and the second end 52 of the pin 5 for grounding extends to the second magnetic core 3 and is conductively connected, so that reliable grounding is realized; meanwhile, the connection part of the second end 52 of the pin 5 for grounding and the second magnetic core 3 is coated with the conductive glue 6, which plays a role in enhancing the connection and fixation of the pin 5 for grounding and the second magnetic core 3. It can be seen that the utility model discloses realize the transformer of the reliable ground connection of magnetic core has following advantage: 1. the product can realize full-automatic production: the magnetic core can be assembled automatically, and the operation procedures of winding, soldering, dispensing, testing and the like can be combined for integrated automatic production; 2. the magnetic core grounding process of hanging and reserving the lead wires is cancelled, so that the labor can be greatly saved, the dependence on personnel and hands is reduced, the production efficiency is improved, and the quality of the transformer is improved; 3. the processing cost and the material cost are lower, and the cost is lower.
In another embodiment of the present invention, as shown in fig. 4, in order to avoid the operation trouble of the processing procedure, the second end 52 of the pin 5 for grounding and the first end 51 of the pin 5 for grounding of the transformer for realizing reliable grounding of the magnetic core are in the same vertical line arrangement, and the top of the second end 52 of the pin 5 for grounding is conductively connected with the second magnetic core 3. In addition, in order to increase the contact area between the pin 5 for grounding and the second magnetic core 3, the end surface area of the second end 52 of the pin 5 for grounding may be larger than the end surface area of the first end 51 of the pin 5 for grounding, i.e. the pin 5 for grounding is in a nail structure, which can be easily realized by those skilled in the art and will not be described in detail.
In another embodiment of the present invention, as shown in fig. 3, in order to increase the contact area between the pin 5 and the second magnetic core 3 for grounding, thereby improving the conductivity between them and avoiding poor contact, the second end 52 of the pin 5 for grounding of the transformer for realizing reliable grounding of the magnetic core is bent with respect to the first end 51 of the pin 5 for grounding, and the side of the second end 52 of the pin 5 for grounding is conductively connected with the second magnetic core 3.
Preferably, the second end 52 of the pin 5 for grounding is bent at 90 degrees with respect to the first end 51 of the pin 5 for grounding. Of course, in other embodiments, the bending angle of the second end 52 of the pin 5 for grounding can be selected according to practical situations, which can be easily realized by those skilled in the art and will not be described in detail.
In addition, in other embodiments, the second end portion 52 of the pin 5 for grounding may also be bent at will, for example, into a circular ring shape, a rectangular shape, etc. to increase the contact area between the pin 5 for grounding and the second magnetic core 3, which can be easily implemented by those skilled in the art and will not be described in detail.
Of course, in other embodiments, the second end 52 of the pin 5 for grounding may not be bent, but the structure of the second magnetic core 3 may be changed, so that the side surface of the second end 52 of the pin 5 for grounding is in surface contact with the second magnetic core 3 for conducting connection, which can be easily implemented by those skilled in the art and will not be described in detail.
In another embodiment of the utility model, this realize the transformer of the reliable ground connection of magnetic core conductive glue 6 is silver thick liquid or graphite, it is right control in the aspect of conductive glue 6's material selection, make the utility model discloses the product yield of the transformer of the reliable ground connection of realization magnetic core is high and the performance also has great improvement than like product.
In another embodiment of the present invention, as shown in fig. 3, the transformer bobbin 1 of the transformer for realizing reliable grounding of the magnetic core includes an upper baffle 13, a winding portion 14 and a lower baffle 15, wherein the upper baffle 13, the winding portion 14 and the lower baffle 15 are combined with each other to form the winding slot 11, the winding portion 14 is hollow and penetrates through the upper baffle 13 and the lower baffle 15 to form the magnetic core hole 12, and the pin 5 is disposed on the lower baffle 15.
Further, the cross-sectional areas of the upper flap 13 and the lower flap 15 are larger than the cross-sectional area of the winding portion 14.
Preferably, the upper baffle 13 and the lower baffle 15 are provided with magnetic core fixing retaining walls 16 at two sides close to the magnetic core hole 12, and a magnetic core slot 17 is formed between the magnetic core fixing retaining walls 16 at two sides.
Specifically, in this embodiment, the first magnetic core 2 and the second magnetic core 3 are frame-shaped structures, the first magnetic core 2 and the second magnetic core 3 are respectively inserted into the magnetic core hole 12 from two ends of the magnetic core hole 12, and meanwhile, two opposite sides of the first magnetic core 2 and the second magnetic core 3 are clamped in the magnetic core clamping grooves 17 formed by the magnetic core fixing retaining walls 16 at two sides and are fixedly disposed on the transformer bobbin 1. Of course, in other embodiments, the structures of the bobbin 1, the first magnetic core 2 and the second magnetic core 3 may adopt other existing bobbin structures and magnetic core structures, and the mutual installation positions between them may also be selected according to actual needs, which can be easily implemented by those skilled in the art and will not be described in detail.
In another embodiment of the utility model, this realize the transformer of magnetic core reliable ground connection the surface parcel of coil 4 has insulating sticky tape, can promote the utility model discloses realize the electrical insulation performance of the transformer of magnetic core reliable ground connection.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a realize reliable ground connection's of magnetic core transformer, includes skeleton, first magnetic core, second magnetic core, coil and stitch, its characterized in that: the transformer comprises a transformer framework, a coil, a first magnetic core, a second magnetic core, a stitch and a conductive glue, wherein the middle part of the transformer framework is inwards sunken to form a winding groove, the coil is wound in the winding groove, the center of the transformer framework is provided with a magnetic core hole in a penetrating manner, the first magnetic core and the second magnetic core are respectively inserted into the magnetic core hole from two ends of the magnetic core hole, the stitch for grounding penetrates through the transformer framework to enable two ends of the stitch to be exposed out of the transformer framework, the first end of the stitch for grounding is used for grounding connection, the second end of the stitch for grounding extends to the second magnetic core and is in conductive connection, and meanwhile, the joint of the second end of the stitch for grounding and the second magnetic core is coated with the conductive glue.
2. The transformer of claim 1, wherein the transformer comprises: the second end of the pin for grounding and the first end of the pin for grounding are in the same vertical line arrangement, and the top of the second end of the pin for grounding is in conductive connection with the second magnetic core.
3. The transformer of claim 1, wherein the transformer comprises: the second end part of the pin for grounding is arranged in a bent mode relative to the first end part of the pin for grounding, and the side face of the second end part of the pin for grounding is in conductive connection with the second magnetic core.
4. The transformer of claim 3, wherein the transformer comprises: the second end of the pin for grounding is bent at 90 degrees relative to the first end of the pin for grounding.
5. The transformer of claim 1, wherein the transformer comprises: the conductive glue is silver paste or graphite.
6. The transformer of any one of claims 1 to 5, wherein: the transformer framework comprises an upper baffle, a winding portion and a lower baffle, the upper baffle, the winding portion and the lower baffle are combined with each other to form the winding slot, the winding portion is hollow and penetrates through the upper baffle and the lower baffle respectively to form the magnetic core hole, and pins are arranged on the lower baffle.
7. The transformer of claim 6, wherein: the cross sectional areas of the upper baffle and the lower baffle are larger than the cross sectional area of the winding part.
8. The transformer of claim 6, wherein: the upper shield with the baffle is being close to down the both sides in magnetic core hole all are provided with the fixed barricade of magnetic core, both sides be formed with the magnetic core draw-in groove between the fixed barricade of magnetic core.
9. The transformer of any one of claims 1 to 5, wherein: and the outer surface of the coil is wrapped with an insulating adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921948265.9U CN210516439U (en) | 2019-11-12 | 2019-11-12 | Transformer capable of realizing reliable grounding of magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921948265.9U CN210516439U (en) | 2019-11-12 | 2019-11-12 | Transformer capable of realizing reliable grounding of magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210516439U true CN210516439U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921948265.9U Active CN210516439U (en) | 2019-11-12 | 2019-11-12 | Transformer capable of realizing reliable grounding of magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210516439U (en) |
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2019
- 2019-11-12 CN CN201921948265.9U patent/CN210516439U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Transformer for realizing reliable grounding of magnetic core Effective date of registration: 20211102 Granted publication date: 20200512 Pledgee: Bank of Guangzhou Co.,Ltd. Huizhou Branch Pledgor: GUANGDONG LIWANG HIGH-TECH CO.,LTD. Registration number: Y2021980011779 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |