WO2020000345A1

WO2020000345A1 - Bottom plate of electronic device, and inductor and transformer having bottom plate

Info

Publication number: WO2020000345A1
Application number: PCT/CN2018/093560
Authority: WO
Inventors: 朱勇; 陈记铭
Original assignee: 深圳市孚泰电子材料技术有限公司
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2020-01-02

Abstract

Disclosed in the present application are a bottom plate of an electronic device, and an inductor and a transformer having the bottom plate. In the present application, a plate body of the bottom plate is opened thereon with several pin holes used for the insertion connection of pins of the electronic device and a guiding groove penetrating the plate body. One end opening of the guiding groove communicates with the pin holes, and the other end opening is disposed at a side edge of the plate body. During the process of mounting the bottom plate, when the pins of the electronic device (comprising but not limited to the inductor and the transformer) needs to be embedded into the pin holes, the pins are abutted against the guiding groove of the bottom plate, and then the pins are pushed, so that the pins slide along the guiding groove and are embedded in the pin holes, thus achieving the insertion connection of the pins and the pin holes. The manner with which the pins need to align with hole sites for insertion is changed to be the manner by which of the pins are pushed into the holes, which facilitates the embedding of the pins in the pin holes. On one hand, the efficiency of an operation in which a bottom plate is mounted on an electronic device is improved, and on the other hand, feasibility is provided for achieving the automation of the operation of mounting the bottom plate on the electronic device.

Description

Backplane of electronic device and inductor and transformer with the same

Technical field

The present application relates to the technical field of electronic devices, and in particular, to a base plate of an electronic device.

Background technique

Electronic devices are an important part of the field of electronic technology. For example, inductors and transformers are commonly used electronic components in the field of electronic technology. The use of inductors in circuits usually includes filtering, buffering and current limiting. The uses of transformers usually include: Electrical isolation, voltage or impedance conversion between adjacent systems, generation of phase shifts, storage and transmission of energy, and voltage and current detection.

The bottom of inductors and transformers is usually installed with a bottom plate. The method of installing the bottom plate is manual installation. When installing the bottom plate, the staff first aligns the pins on the bottom of the inductor or transformer with the pin holes on the bottom plate. The pins pass through the pin holes to realize the insertion of the pins in the pin holes, and then the glue is used to bond the bottom plate to the inductor or the transformer coil, so that the bottom plate is installed at the bottom of the inductor or transformer.

However, it takes a lot of man-hours to align the pins with the pin holes when the worker installs the bottom plate, which reduces the installation efficiency of the worker to install the bottom plate, so it needs to be improved.

technical problem

The present application provides a bottom plate of an electronic device, and an inductor and a transformer with the bottom plate, which solve the problems of low installation efficiency when the existing bottom plate is installed on an electronic device such as an inductor or a transformer, and is not conducive to the realization of automatic installation.

Technical solutions

A bottom plate of an electronic device provided in the present application. The bottom plate includes a board body. The board body is provided with a plurality of pin holes for inserting with the pins of the electronic device. The board body is provided with A guide groove penetrating the plate body, one end opening of the guide groove is communicated with the pin hole, and the other end opening is arranged on the side of the plate body.

As a further improvement of the bottom plate, the size of the guide groove gradually increases in a direction away from the pin hole.

As a further improvement of the bottom plate, the guide groove is provided in a meandering manner.

Another base plate of an electronic device provided in the present application, the base plate includes: a board body, the board body is provided with a plurality of pairs of pin holes for inserting with the pins of the electronic device, and in each pair of pins In the hole, two pin holes extend in a direction close to or away from each other. The extension direction of the pin hole is defined as its length direction, and the direction perpendicular to the length direction of the pin hole is its width direction. The direction parallel to the length of the pin hole on the pin is the length direction of the pin, and the direction parallel to the width of the pin hole on the pin to be inserted is defined as the width direction of the pin. The ratio of the length to the width is greater than the ratio of the length to the width of the pin, and the width of the pin hole is adapted to the width dimension of the pin.

As a further improvement of the bottom plate, the distance between the innermost edges of each pair of pin holes is smaller than the distance between two corresponding pins to be plugged.

As a further improvement of the bottom plate, the distance between the innermost edges of each pair of pin holes is greater than the distance between two corresponding pins to be plugged.

As a further improvement of the bottom plate, the length of the pin hole is 1.5 to 3 times its width.

As a further improvement of the bottom plate, one end of the plate body is provided with a chamfer for identifying a start end of a coil of an electronic device, and the plate body is provided with a fake foot hole for installing a fake foot, and the pin hole The shape is at least one of circular and square.

An inductor provided in the present application, the inductor includes: an inductor body and the base plate according to any one of the above, the inductor body is mounted on the base plate, and the pins of the inductor body extend into The bottom plate is fixed in the pin hole.

A transformer provided in the present application includes a transformer body and a base plate according to any one of the above. The transformer body is assembled on the electronic device base plate, and the pins of the transformer body extend into the lead of the base plate. Foot holes are fixed inside.

Beneficial effect

The beneficial effects of this application are:

In a base plate provided in the present application, a guide groove is formed on one end of the guide groove, which communicates with the pin hole at one end, and the other end opening is provided on the side of the board body. When the pins of the device (including but not limited to inductors and transformers) are embedded in the pin holes, the pins are pushed so that the pins slide along the guide grooves and are embedded in the pin holes to achieve the insertion of the pins and the pin holes. Changing the way the pins need to be aligned with the holes is changed to the way that the pins are pushed into the holes, which is convenient for the pins to be embedded in the pin holes. On the one hand, the efficiency of the electronic device mounting substrate is improved. The machine cannot accurately realize the automatic jack for products with a small gap between the pin and the pin hole, which limits the automation process of the electronic device mounting base plate. The solution of this application provides feasibility for the automation of electronic device mounting base plate work. .

Further, the size of the guide groove is gradually increased in a direction away from the pin hole, and the size of the opening of the guide groove near the side of the plate body is increased, which is convenient for the staff to push the pin into the guide groove and further facilitate the introduction of the lead. The foot is embedded in the pin hole.

In a bottom plate provided in the present application, a plurality of pairs of pin holes for inserting with pins of an electronic device are provided thereon. In each pair of pin holes, two pin holes are close to or away from each other. Extending the direction increases the size of the length of the pin hole, so that the length of the pin hole is much longer than the length of the pin, which reduces the precision requirements of the hole between the pin and the pin hole. The feet are embedded in the pin holes, which provides another feasible idea for improving the efficiency of the electronic device mounting substrate work and realizing the automation of the electronic device mounting substrate work.

Further, in an embodiment, the distance between the outermost edges of each pair of pin holes is smaller than the distance between two corresponding pins to be inserted. Press the feet toward each other to shorten the distance between the two corresponding pins, so that the two corresponding pins can be embedded in a pair of pin holes. After inserting the pins into the pin holes, release the pin in the pressed state. Under the action of the elastic force of the pin, the pin is in tight contact with the hole wall of the pin hole, which makes it difficult for the pin to move in the larger pin hole, which solves the problem of the pin when the gap between the pin and the pin hole is too large It is easy to move in the pin hole, which leads to the problem of poor positioning.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of an inductor in Embodiment 1 of the present application; FIG.

2 is a bottom view of the inductor in the first embodiment of the present application;

FIG. 3 is a schematic structural diagram of a base plate in Embodiment 1 of the present application; FIG.

4 is a schematic structural diagram of a second base plate in Embodiment 1 of the present application;

FIG. 5 is a schematic structural diagram of a third base plate in Embodiment 1 of the present application; FIG.

FIG. 6 is a schematic diagram of mounting pins and a bottom plate of an inductor in Embodiment 1 of the present application; FIG.

7 is a front view of a transformer in Embodiment 2 of the present application;

8 is a bottom view of a transformer in Embodiment 2 of the present application;

FIG. 9 is a schematic diagram of a coil pin and a bottom plate installation in Embodiment 2 of the present application; FIG.

FIG. 10 is a schematic structural diagram of another base plate in Embodiment 2 of the present application.

Embodiments of the invention

detailed description

The present invention will be further described in detail below through specific embodiments in combination with the accompanying drawings. In the different embodiments, similar elements are labeled with associated similar elements. In the following embodiments, many details are described so that the present application can be better understood. However, those skilled in the art can effortlessly realize that some of these features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to this application are not shown or described in the description. This is to avoid that the core part of this application is overwhelmed by too much description. For those skilled in the art, these are described in detail. The related operations are not necessary, they can fully understand the related operations according to the description in the description and the general technical knowledge in the field.

In addition, the features, operations, or features described in the specification may be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be sequentially swapped or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the description and drawings are only for clearly describing a certain embodiment, and are not meant to be a necessary order, unless otherwise stated that a certain order must be followed.

The serial numbers of components in this document, such as "first", "second", etc., are only used to distinguish the described objects and do not have any order or technical meaning. The terms “connection” and “connection” in this application include direct and indirect connections (connections) unless otherwise specified.

Zh

Embodiment one:

The first embodiment provides an inductor, in particular an inductor with a bottom plate.

Please refer to FIG. 1, the inductor 1 includes a magnetic core 3, and the magnetic core 3 includes a plurality of magnetic sheets assembled with each other. A number of turns of copper wires are wound on the magnetic core 3 to form a coil 4, and an end of the coil 4 is formed with On pin 6.

Please refer to FIG. 2 and FIG. 3. The inductor 1 further includes a bottom plate 2. The bottom plate 2 includes a plate body 21. In this embodiment, the shape of the plate body 21 is rectangular. In other embodiments, other shapes such as a circle may be used. The board body 21 is provided with a pin hole 5, and the pin 6 of the coil 4 passes through the pin hole 5. The coil 4 and the board body 21 are bonded by glue. The pin hole 5 is located on the two diagonal lines of the board body 21. Each end is provided with a first pin hole 51 and a second pin hole 52, and corresponding pins 6 are named a first pin 61 and a second pin 62. Of course, as a variant, The number and positions of pins 6 and 5 can be set flexibly to meet the needs of the product. The plate body 21 is provided with a guide groove 7 penetrating the plate body 21. One end of the guide groove 7 communicates with the pin hole 5, and the other end is provided on the side of the plate body 21.

In this embodiment, a wiring opening 8 is opened in the middle of the board body 21, and the wire on the coil 4 passes through the wiring opening 8 from the position near the first pin hole 51 to the position near the second pin hole 52 and forms a first Two pins 62.

The size of the guide groove 7 can be kept constant along its extending direction, or it can be gradually increased in a direction away from the pin hole 5. Please refer to FIG. 4. In one embodiment, two corresponding sides of the rectangular plate body 21 Two pin holes 5 are opened, and each of the pin holes 5 on the board 21 is provided with a guide groove 7 correspondingly. The guide groove 7 may gradually increase in a direction away from the pin hole 5, for example, the guide groove 7 may be trapezoidal. The size of the opening of the end of the guide groove 7 near the side of the plate body 21 is increased, which is convenient for a worker to push the pin 6 into the guide groove 7 through the opening, and further facilitates inserting the pin 6 into the pin hole 5.

In this embodiment, in the bottom plate shown in FIGS. 1-3, the size of the first guide groove 71 communicating with the first pin hole 51 is consistent along the extending direction, and the second guide communicating with the second pin hole 52 is the same. The size of the groove 72 gradually increases in a direction away from the pin hole 5, so that the opening size of the second guide groove 72 near the side of the plate body 21 is increased, which is convenient for a worker to push the pin 6 into the second guide through the opening. The groove 72 further facilitates inserting the pin 6 into the pin hole 5.

In addition, please refer to FIG. 4. In another type of base plate, a pair of pin holes 5 are provided on two corresponding sides of the rectangular plate body 21, and each of the pin holes 5 on the plate body 21 is provided with a guide groove 7 correspondingly. The sizes of the guide grooves 7 on both sides of the plate body 21 gradually increase along the direction in which the guide grooves 7 are away from the pin holes 5. In the bottom plate 21 of other embodiments, the size of the guide groove 7 on one side of the plate body 21 may also be set, and the size of the guide groove 7 on the other side of the plate body 21 gradually increases along the direction in which the guide groove 7 is away from the pin hole 5. Big.

In addition, please refer to FIG. 5. In the third base plate 21, the guide groove 7 may also be designed to have a constant size.

Further, the shape of the guide groove 7 may be provided in a straight line, or may be provided in a meandering shape. Referring to FIG. 3, in a bottom plate of this embodiment, the first guide groove 71 is arranged in a straight line, the second guide groove 72 is meandered, and the meandering guide groove 7 can effectively reduce the lead 6 along the guide groove. 7 The possibility of sliding and disengaging from the pin hole 5 effectively improves the stability of the cooperation between the pin 6 and the pin hole 5.

In addition, please refer to FIG. 5. In another base plate, two corresponding sides of the rectangular plate body 21 are respectively provided with a guide groove 7, and the guide grooves 7 are arranged in a straight line.

Please refer to FIG. 6. In one embodiment, when a pair of pins 6 needs to be embedded in a pair of pin holes 5, the pair of pins 6 are respectively aligned with the guide groove 7 on the board 21, and then Push the two pins 6 towards each other so that the pins 6 slide into the pin holes 5 along the guide groove 7 to achieve the installation of the pins 6 in the pin holes 5 and align the pins 6 with the hole positions. The method of inserting is changed to the method of pushing the pin 6 into the hole, which is convenient for inserting the pin 6 into the pin hole 5.

A chamfer 9 is provided at one end of the plate body 21, and the chamfer 9 is used to identify the starting end of the coil 4, which is convenient for the staff to determine the starting end of the coil 4. The chamfer 9 can be set to be oblique, circular, and wavy. Wait.

The board body 21 is provided with a fake foot hole position 10, and the fake foot hole position 10 is used to install a functional fake foot. In this embodiment, the fake foot hole position 10 is not provided with a pin hole 5 on the board body 21. The two ends of the angle line are provided respectively, and are symmetrically arranged with the pin hole 5, and copper nails are used for the artificial feet.

The shape of the pin hole 5 is at least one of a circle (including an oval, a perfect circle, a waist circle, etc.) and a square (including a square, a rectangle, etc.). When the pin 6 to be inserted is a circular wire, Use round pin holes 5. When the pins 6 to be plugged are formed by flat wires, use square pin holes 5. When the wire shapes of pins 6 are different, use pin holes 5 and pins of appropriate shapes. The 6 coordination makes it easier for the pin 6 to be placed in the pin hole 5.

Zh

Embodiment two:

The second embodiment provides a transformer, specifically a transformer with a bottom plate.

Referring to FIG. 7, the transformer 11 includes a magnetic core 3, and a coil 4 is wound around the magnetic core 3. The coil 4 includes a primary coil and a plurality of secondary coils.

Referring to FIG. 8, the inductor 1 further includes a bottom plate 2, and the bottom plate 2 includes a plate body 21. In this embodiment, the shape of the plate body 21 is rectangular. In other embodiments, other shapes such as a circle may be used. The plate body 21 is provided with a pair of pin holes 5. The pins 6 of the coil 4 pass through the pin holes 5. The coil 4 and the plate body 21 are bonded by glue.

In each pair of pin holes 5, two pin holes 5 extend in a direction approaching or distant from each other, and the extension direction of the pin hole 5 is defined as a length direction, that is, a direction in which the two pin holes 5 approach or move away from each other. Is the length direction, as shown by a in FIGS. 8 and 10. The direction perpendicular to the length direction of the pin hole 5 is the width direction, as shown by b in FIGS. 8 and 10. Define the direction of the pin 6 to be inserted that is parallel to the length direction of the pin hole 5 as the length direction of the pin 6, and define the direction of the pin 6 to be inserted that is parallel to the width direction of the pin hole 5 as the width of the pin 6 direction.

In this embodiment, the length direction of the pin hole 5 is parallel to the length direction of the rectangular base plate 2, and the width direction of the pin hole 5 is parallel to the width direction of the rectangular base plate 2. In order to facilitate the insertion of the pin 6 into the pin hole 5, in this embodiment, the ratio of the length to the width of the pin hole 5 is greater than the ratio of the length to the width of the pin 6. The width of the pin hole 5 is matched with the width of the pin 6. The matching means that the width of the pin hole 5 is slightly larger than the width of the pin 6.

In this embodiment, when the width of the pin hole 5 matches the radial size of the pin 6, on the one hand, the hole wall of the pin hole 5 will not prevent the pin 6 from being embedded in the pin hole 5, and on the other hand After the pin 6 and the pin hole 5 are plugged in, the hole wall of the pin hole 5 limits the pin 6 in the width direction, so that the pin 6 cannot easily move in the width direction of the pin hole 5.

Further, please refer to FIG. 8 continuously. In one embodiment, a distance a1 between the outermost edges of each pair of pin holes 5 is smaller than a distance between two corresponding pins 6 to be inserted. It should be noted that the outermost edge of the pin hole 5 refers to the outermost part of the pin hole 5 in the length direction, and the distance a1 refers to the straight line distance between the outer edges of the two pin holes 5, as shown in FIG. 8. a1. To explain the distance a1 in FIG. 8, the pins 6 in the corresponding pin holes 5 are omitted.

Please refer to FIG. 9, a pair of pin holes 5 are formed symmetrically at the bottom of the coil 4, and the distance between the outermost edges of the pair of pin holes 5 is smaller than the distance between the two corresponding pins 6 to be inserted. When the pin 6 of the coil 4 needs to be inserted into the pin hole 5, the two corresponding pins 6 are pushed toward each other to shorten the distance between the two corresponding pins 6 so that the two corresponding pins 6 can Embedded in a pair of pin holes 5. After inserting the pin 6 into the pin hole 5, loosen the pin 6 in the pressed state, and the pin 6 is pressed against the outer edge of the hole wall of the pin hole 5 by the elastic force of the pin 6 to make it difficult for the pin 6 to The large-sized pin hole 5 moves, which solves the problem that the pin 6 is easy to move in the pin hole 5 when the gap between the pin 6 and the pin hole 5 is too large, resulting in insecure positioning.

In addition, in other embodiments, the distance between the innermost edges of each pair of pin holes 5 may also be greater than the distance between two corresponding pins 6 to be plugged. Please refer to FIG. 8, the distance between the innermost edges of each pair of pin holes 5 is shown as a2 in FIG. 8. The innermost edge of the pin holes 5 refers to the innermost part of the pin holes 5 in the length direction, and the distance a2 It also refers to the linear distance between the innermost edges of the two pin holes 5.

When a pair of pins 6 needs to be inserted into the pin hole 5, push the two corresponding pins 6 away from each other, and increase the distance between the two corresponding pins 6, so that the two corresponding pins 6 can Embedded in a pair of pin holes 5, after pin 6 is inserted into pin hole 5, release pin 6 in the open state, pin 6 is in the hole wall of pin hole 5 under its own elastic force. The tightness of the edges makes it difficult for pin 6 to move within larger pin hole 5, which solves the problem that pin 6 easily moves in pin hole 5 when the gap between pin 6 and pin hole 5 is too large, resulting in poor positioning. Firm question.

Further, the length of the pin hole 5 is 1.5 to 3 times its width. In this embodiment, the length of the pin hole 5 is twice its width.

Please refer to FIG. 10. In another type of base plate, the plate body 21 is circular. The plate body 21 is provided with three pairs of pin holes 5 spaced apart. The three pairs of pin holes 5 are radially distributed, and two corresponding pin holes 5 Extending towards each other, the distance between the outermost edges of each pair of pin holes 5 is smaller than the distance between the two corresponding pins 6 to be plugged, so that the pins inserted in each pair of pin holes 5 6 is in tight contact with the outer edge of the hole wall of the pin hole 5.

A chamfer 9 is provided at one end of the plate body 21. For the shape and function of the chamfer 9, please refer to the first embodiment.

Each of the four corners of the rectangular plate 21 shown in FIG. 8 is provided with a dummy foot hole position 10. For the function of the dummy foot hole position 10, refer to the first embodiment.

The shape of the pin hole 5 is at least one of a circle (including an oval, a perfect circle, a waist circle, etc.) and a square (including a square, a rectangle, etc.). In this embodiment, the shape of the pin hole 5 is both For the waist shape, please refer to the first embodiment for the method of selecting the shape of the pin hole 5.

Zh

The above embodiments 1 and 2 have only explained the bottom plate structure by using inductors and transformers as examples. The bottom plate structure shown in this application can also be applied to electronic devices other than inductors and transformers. The above uses specific examples to illustrate the present invention, but is only used to help understand the present invention, and is not intended to limit the present invention. For those skilled in the art to which the present invention pertains, according to the idea of the present invention, several simple deductions, deformations, or replacements can also be made.

Claims

A bottom plate of an electronic device is characterized in that it includes a board body, and the board body is provided with a plurality of pin holes for inserting with the pins of the electronic device and a guide groove penetrating the board body. An opening at one end communicates with the pin hole, and an opening at the other end is disposed on a side of the board body.
The base plate of the electronic device according to claim 1, wherein a size of the guide groove is gradually increased in a direction away from the pin hole.
The base plate for an electronic device according to claim 1, wherein the guide groove is provided in a meandering manner.
A bottom plate of an electronic device is characterized in that it includes a board body, and the board body is provided with a plurality of pairs of pin holes for inserting pins of the electronic device. In each pair of pin holes, two lead holes are provided. The pin holes extend in directions that are close to or away from each other. The extension direction of the pin hole is defined as its length direction. The direction perpendicular to the length direction of the pin hole is its width direction. The direction parallel to the length direction of the pin hole is the length direction of the pin, and the direction parallel to the width direction of the pin hole on the pin to be inserted is defined as the width direction of the pin. The ratio of the length of the pin hole to the width is greater than The ratio of the length of the pin to the width, and the width of the pin hole is adapted to the width dimension of the pin.
The base plate of the electronic device according to claim 4, a distance between an outermost edge of each pair of pin holes is smaller than a distance between two corresponding pins to be inserted.
The backplane of the electronic device according to claim 4, a distance between the innermost edges of each pair of pin holes is greater than a distance between two corresponding pins to be plugged.
The base plate of the electronic device according to claim 4, wherein a length of the pin hole is 1.5 to 3 times a width thereof.
The base plate for an electronic device according to any one of claims 1 to 7, wherein one end of the board body is provided with a chamfer for identifying a coil start end of the electronic device, and the board body is provided with an opening for mounting The position of the prosthetic foot of the prosthetic foot. The shape of the pin hole adopts at least one of a circle and a square.
An inductor, comprising: an inductor body and a base plate according to any one of claims 1 to 8, the inductor body is mounted on the base plate, and the pins of the inductor body extend It is fixed into the pin hole of the bottom plate.
A transformer, comprising: a transformer body and the electronic device base plate according to any one of claims 1 to 8, the transformer body is assembled on the electronic device base plate, and the pins of the transformer body are extended. It is fixed into the pin hole of the bottom plate.