KR20020086426A - Structure of electric contact between two devices - Google Patents

Abstract

PURPOSE: An electric contact structure between two devices is provided to electrically contact connectors composed in the two devices accurately and easily using a magnetic force and electrically contact between the two devices easily irrespective of the housing shape of each device. CONSTITUTION: The first magnet(101) of a battery side is composed in a housing(100c) of a battery. The second magnet(102) of the battery side is composed in the housing(100c) of the battery, and is opposite with the first magnet(101) of the battery side in a surface polarity. The first magnet(201) of a charger side is composed in a housing(200c) of a charger, and is opposite with the first magnet(101) of the battery side in the surface polarity. The second magnet(202) of the charger side is composed in the housing(200c) of the charger, and is separated from the first magnet(201) of the charger side by an interval which is identical to an interval between the first magnet(101) of the battery side and the second magnet(102) of the battery side and is opposite with the first magnet(201) of the charger side in the surface polarity. A charge connector(10) of the battery side is composed in the housing(100c) of the battery. A charge connector(13) of the charger side is composed in a point in which the charge connector(10) of the battery side is contacted when the first magnet(101) of the battery side and the first magnet(201) of the charger side are contacted by a magnetic force and the second magnet(102) of the battery side and the second magnet(202) of the charger side are contacted by the magnetic force.

Description

STRUCTURE OF ELECTRIC CONTACT BETWEEN TWO DEVICES

This application is a Korean priority claim application based on a prior patent application No. 10-2002-0061159 by the applicant.

The present invention relates to an electrical contact structure between two devices, and more particularly, between two devices in which electrical connection and disconnection are frequently performed, so that electrical contact can be easily secured regardless of the housing shape of each device. The electrical contact structure between the two devices of the structure.

In particular, batteries and chargers for mobile telephone terminals are mentioned as an example of an apparatus in which electrical connection and disconnection are frequent, and the shape of the housing varies.

A battery for a mobile phone terminal consists of a cell, a protection circuit and a contact terminal. Among them, the cell and the protection circuit are mounted inside the battery housing, and the contact terminals protrude outside. In addition, the contact terminal is electrically connected to the protection circuit by the leader line. One of the contact terminals protruding from the back of the battery housing is the battery charging terminal. The battery-side charging terminal is usually composed of three to four, including not only two power input terminals but also a battery type identification terminal and a contact state determination terminal.

On the other hand, the charging terminal on the charger side is a contact terminal that is exposed and fixedly installed on the outside of the charger housing and is formed in the terminal socket corresponding to the number of the battery charging terminals, and is electrically connected to the charging circuit inside the charger housing by the lead wire. . At this time, the position, spacing and size of the charger-side charging terminal is a position, spacing and size that can be exactly in contact with the battery-side charging terminal when the battery and the charger is fastened by the fastening means.

Conventionally, the housing shape of a battery for a mobile phone terminal is different because various designs are developed according to a manufacturer or a model. In addition, since the lower shape of the housing of the charger for charging the battery is also formed to match the shape of the housing of the battery, it is different for each manufacturer and model. This is because the housing shape of the battery and the housing shape of the charger must be matched with each other so that the battery side charging terminal and the charger side charging terminal can be easily contacted. In addition, a mechanical fastening means is formed between the battery and the charger to improve contact between the battery charging terminal and the charger charging terminal. In the related art, the fastening means can be fastened to the battery housing and the housing of the charger. It was common to form irregularities.

However, these fastening means also differed in their position, shape and structure depending on the design of the battery housing. The diversification of the shape of the battery housing, the difference in the fastening structure between the battery and the charger, and the difference in the charging terminal according to the above-mentioned problems are not only compatible between batteries and chargers of different manufacturers, but also between batteries and chargers of the same manufacturer. It has caused.

Conventionally, magnets have been used as a means for fastening hands free with a mobile phone or battery and a charger. However, the magnet that connects the handsfree to the mobile phone or the battery and the charger attaches one magnet of one polarity to either the handsfree or the cell phone, and attaches one ferromagnetic material such as an iron plate or a magnet of opposite polarity to the other. Approaching it had a structure that is fastened by the attraction of each other.

However, the conventional structure in which the attraction force acts at one point cannot be used as an electrical contact means between the charging terminals even though it can be used as a fastening means for the battery and the charger. Referring to FIG. 2A, even when the magnet housings 100b and the charger housing 200b are provided with one magnet having opposite polarities, the battery housing 100b and the charger housing 200b are disposed at one point (magnet 101). And the contact point of 201) are simply attached to each other by the action of the attraction force, and the x point, which is one point on the battery housing 100b, cannot be prevented from being rotated around the point where the attraction force acts (contacts of the magnets 101 and 201). The contact point x ', which is the corresponding point on the charger housing 200b, is not always in contact. Therefore, even if the battery side charging terminal and the charger side charging terminal are provided at a predetermined corresponding point of the battery housing 100b and the charger housing 200b, they cannot always be in regular contact. This description can be applied as is between devices in which all electrical contacts are made.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to provide an electrical contact structure between two devices capable of contacting contact terminals provided in two devices accurately and easily using magnetic force.

Another object of the present invention is to provide an electrical contact structure between two devices that can easily attach electrical contact terminals between two devices, regardless of the housing shape of each device.

1 is a perspective view of a battery and a charger for a mobile phone terminal for explaining an embodiment of an electrical contact structure between two devices according to the present invention.

2A to 2D are reference perspective views for explaining a mutual contact state when a plurality of magnets are arranged by cutting only a portion of the battery and the housing of the charger contacted during charging in the form of a plate in FIG. .

3A to 3D are perspective views illustrating an electrical contact structure between the battery side charging terminal and the charger side charging terminal added to the flat plate shown in FIGS. 2A to 2D.

4A to 4C are magnet structures and arrangement diagrams for explaining the electrical contact structure between the battery and the charger in the case of using a single-sided bipolar magnet with a magnet.

* Description of the symbols for the main parts of the drawings *

10: battery side charging terminal 11: battery side lead wire

13 charger side charging terminal 14 charger side leader line

100a to 100d: battery housing 200a to 200d: charger housing

101: battery side first magnet 102: battery side second magnet

103, 104: battery side auxiliary magnet 105: battery side cross-section multi-pole magnet

201: Charger side first magnet 202: Charger side second magnet

203, 204: Battery side auxiliary magnet 205: Charger side cross-section multipole magnet

The electrical contact structure between the two devices according to the present invention is

Housing of device 1;

A housing of device 2;

A device 1 side first magnet provided in the housing of the device 1;

An apparatus 1 side second magnet provided in a housing of the apparatus 1 and having a surface polarity opposite to that of the apparatus 1 side first magnet;

An apparatus 2 side first magnet provided in a housing of the apparatus 2 and having a surface polarity opposite to that of the apparatus 1 side first magnet;

The apparatus 2 is disposed in the housing of the apparatus 2 and is spaced apart from the apparatus 2 side first magnet by an interval equal to the distance between the apparatus 1 side first magnet and the apparatus 1 side second magnet, wherein the apparatus 2 side first magnet is disposed. A device 2 side second magnet, the surface polarity of which is opposite;

A device 1 side contact terminal provided in the housing of the device 1; and

Of the points on the housing of the device 2, the device 1 side first magnet and the device 2 side first magnet are in contact with each other by magnetic force, and the device 1 side second magnet and the device 2 side second magnet are in contact with each other by magnetic force. At this time, the device 2 side contact terminal provided at the point where the device 1 side contact terminal contact; characterized in that it comprises a.

The device 1 is a battery for a mobile phone terminal, the device 1 side contact terminal is a battery side charging terminal, the device 2 is a charger, the device 2 side contact terminal is characterized in that the charger side charging terminal.

The device 1 is a battery for a mobile phone terminal, the contact terminal on the device 1 side is a speaker output terminal and a microphone input terminal of the mobile terminal extending the microphone input terminal to the back of the battery housing, device 2 is a hands-free device The two-side contact terminal is a hands-free speaker input terminal and a hands-free microphone output terminal.

The housing of the device 1 further includes 1 to 5 device 1 side auxiliary magnets for accurate and stable contact between contact terminals, the device 1 side first magnet and the device 2 side of the points on the housing of the device 2. At each point on the device two-side housing that the device one side auxiliary magnet contacts, when the first magnet is contacted by magnetic force and the device one side second magnet and the device two side second magnet are contacted by magnetic force, the Corresponding to the device 1 side auxiliary magnet, the device 2 side auxiliary magnet whose polarity is opposite to the device 1 side auxiliary magnet may be further provided.

As the magnets, a single-sided multipole magnetized magnet in which a plurality of N poles and S poles are formed in part on the same surface of one magnetic body piece can be used.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiment illustrated in the drawings illustrates a case of using a permanent magnet piece as a magnet, but an embodiment using an electromagnet as a magnet can be easily implemented by those skilled in the art. In addition, although the embodiment shown in the drawings illustrates a battery and a charger for a mobile telephone terminal as two devices, this is for convenience of description, and the electrical contact structure according to the present invention is applied between all two devices requiring electrical connection. It can be.

1 is a perspective view of a battery and a charger for a mobile phone terminal for explaining an embodiment of the electrical contact structure between the two devices according to the present invention, Figures 2a to 2d is a contact during charging of the battery and the charger in Figure 1 After the various portions of the magnets are cut in the form of a flat plate, and the various numbers of magnets are arranged, a reference perspective view for explaining the mutual contact state when the plates are approached between each other is shown. FIGS. 3A to 3D show a battery in the flat plate shown in FIGS. 4A to 4C are perspective views illustrating the electrical contact structure between the charging terminal and the charger side charging terminal, and FIGS. 4A to 4C are magnets for explaining the electrical contact structure between the battery and the charger when the cross-sectional two-pole magnet is used as a magnet. The structure and its layout are respectively shown.

Applicant uses two magnets with different surface magnetic poles to provide two different polarities of magnets 101 and 102 in the battery housing 100b, as shown in FIG. 2B, and the charger housing 200b. Equipped with magnets 201 and 202 having two polarities opposite to each other, but separated by the same distance from the two magnets 101 and 102 provided in the battery housing 100b, the point x is one point on the battery at each approach. Experimentally confirmed that X always comes into contact with x 'on the charger. It is possible to prevent rotation about any one point by the attraction force between the battery housing and the charger housing at two points (contact between magnet 101 and magnet 201 and contact between magnet 102 and magnet 202) simultaneously. Because.

More specifically, in FIG. 2B, the battery-side first magnet 101, which is the N pole, is always attached to the charger-side first magnet 201 that is the S pole, and the battery-side second magnet 102, which is the S pole, is always the N-pole charger. It is attached to the side second magnet 202. Since the attraction force acts simultaneously at each attachment point, the displacement centered on the contact point between the battery side first magnet 101 and the charger side first magnet 201 is applied to the battery side second magnet ( The attraction force of the 102 and the charger-side second magnet 202 prevents it, and conversely, the displacement of the battery is shifted around the contact point between the battery-side second magnet 102 and the charger-side second magnet 202. The attraction of the first magnet 101 and the charger-side first magnet 201 is blocked. This fact is that if two magnets of opposite polarity spaced apart by the same distance are provided for each housing of the two devices, and the contact terminals of each device are formed at the point of contact with each other on the housing, each time the two devices are approached, It means that the contact terminals of the device can be exactly contacted.

2C and 2D, the battery housing 100b further includes battery side auxiliary magnets 103 and 104 in addition to the battery side first and second magnets, and the battery side auxiliary magnets 103 and 104. At each point on the charger housing 200b in contact with the c), the charger side auxiliary magnets 203 and 204 having opposite polarities to the battery side auxiliary magnets 103 and 104 may be further provided. Although the object of the present invention can be achieved by providing two magnets of different polarities in the battery and the charger housing, as shown in FIGS. 2C and 2D for more stable and more accurate electrical contact between the contact terminals. Further, one auxiliary magnet (symbol 103 in FIG. 2C) or two (symbols 103 and 104 in FIG. 2D) are further provided in the housing 100b of the battery, and the auxiliary magnets 103 and 104 are positioned on the battery housing. At the point on the housing of the corresponding charger, one auxiliary magnet (symbol 203 in FIG. 2C) or two (symbols 203 and 204 in FIG. 2D) which are opposite in polarity to the auxiliary magnet on the battery housing are also provided.

2C and 2D illustrate a case in which one or two auxiliary magnets are added, but three to eight auxiliary magnets may be added as necessary, and the number of the auxiliary magnets is unnecessary unless it is a special use. In particular, when using neodymium magnets (NdFeB magnets), which have recently been used for a wide range of applications, the number of auxiliary magnets is most suitable. This is because neodymium magnets, which are rare earth magnets, have a very large magnetic energy even in a small size.

As the magnets 101 to 104 and 201 to 204 provided in the housing 101 of the battery and the charger, as shown in FIGS. 2B to 2D, a plurality of permanent magnet pieces in which one pole is magnetized in one magnetic body piece are used. However, as shown in FIG. 4A or 4C, a single-sided multipole magnetized magnet in which the N pole and the S pole are magnetized partly on the same surface of one magnetic body 105 or 205 may be used. For convenience, only the cross-sectional dipole magnetization magnet is shown in FIG. 4A, but more magnets may be magnetized on the same plane as the number of auxiliary magnets.

Preferably, the contact areas of the magnets are the same, but are not necessarily limited thereto.

3A to 3C show a battery side charging terminal 10 and its lead line 11 in the battery housing shown in FIGS. 2B to 2D, and a charger side charging terminal 13 and its lead line (in the charger housing) 14) is shown.

Referring to FIG. 3A, the positions of the battery-side first magnets 101 and the second magnets 102 on the battery housings and the charger-side first magnets 201 and the second magnets 202 are positioned on the charger housings. If the charging terminals 10 and 13 provided in the housing are arranged to allow contact, the battery side charging terminal 10 automatically contacts the charger side charging terminal 13 whenever the battery is approached near the charger. .

As shown in FIG. 3B or 3C, when adding auxiliary magnets (103, 203) or two (103, 104, 203, 204) to the battery housing and the charger housing one by one, easier and more precise charging Electrical contact between terminals 10 and 13 occurs.

In this case, when the contact surface of the charger housing 200c is formed to be close to a flat or planar shape, the battery side charging terminal can be easily contacted with the charger side charging terminal regardless of the size or shape of the housing 100c of the battery. will be. In addition, when only the number of charging terminals and the distance between the charging terminals match, it is possible to charge batteries of various shapes by one charger.

Contact terminals that can be electrically connected by the present invention include both power transmission terminals and analog or digital signal transmission terminals.

The contact terminal structure according to the present invention can be used for contact terminals between all devices having frequent electrical connection and disconnection. In particular, the terminal speaker output terminal and the terminal microphone input terminal of the mobile phone terminal are extended to the housing rear surface of the battery through the housing rear surface of the mobile phone terminal, and a speaker output terminal and a microphone input terminal separate from the charging terminal are formed on the battery housing rear surface. After that, correspondingly, if the hands-free housing upper surface of the hands-free speaker input terminal and the hands-free microphone output terminal, the present invention can be applied to the electrical contact structure between the voice signal transmission terminal between the mobile phone terminal and the hands-free It is.

When the charger having a contact terminal structure according to the present invention is installed in a bus, subway, restaurant, or the like, due to its compatibility, there is an advantage that the battery can be easily charged from outside the home or office.

As mentioned above, although one Example of this invention was described with reference to an accompanying drawing, The technical idea of this invention and its protection scope are not limited to this, and it extends to all the Example which is substantially the same as the matter of a claim. will be.

According to the present invention, not only can the contact terminals provided in the two devices be electrically contacted accurately and easily by using magnetic force, but also the electrical contact between the two devices can be easily achieved regardless of the housing shape of each device. There are advantages to it.

Claims (4)

Housing of device 1; A housing of device 2; A device 1 side first magnet provided in the housing of the device 1; An apparatus 1 side second magnet provided in a housing of the apparatus 1 and having a surface polarity opposite to that of the apparatus 1 side first magnet; An apparatus 2 side first magnet provided in a housing of the apparatus 2 and having a surface polarity opposite to that of the apparatus 1 side first magnet; The apparatus 2 is disposed in the housing of the apparatus 2 and is spaced apart from the apparatus 2 side first magnet by an interval equal to the distance between the apparatus 1 side first magnet and the apparatus 1 side second magnet, wherein the apparatus 2 side first magnet is disposed. A device 2 side second magnet, the surface polarity of which is opposite; A device 1 side contact terminal provided in the housing of the device 1; and Of the points on the housing of the device 2, the device 1 side first magnet and the device 2 side first magnet are in contact with each other by magnetic force, and the device 1 side second magnet and the device 2 side second magnet are in contact with each other by magnetic force. And the device 2 side contact terminal provided at a point where the device 1 side contact terminal contacts. The method of claim 1, The housing of the device 1 further includes 1 to 5 device 1 side auxiliary magnets, wherein the device 1 side first magnet and the device 2 side first magnet among the points on the housing of the device 2 are in contact with each other by magnetic force. When the first side second magnet and the second side magnet are contacted by magnetic force, at each point where the first side auxiliary magnet contacts, the polarity of the second side magnet is opposite to the first side secondary magnet. Electrical contact structure between the two devices, characterized in that further provided one by one. The method according to claim 1 or 2, Wherein the device 1 is a battery for a mobile telephone terminal, the device 1 side contact terminal is a battery side charging terminal, the device 2 is a charger, and the device 2 side contact terminal is a charger side charging terminal. The method according to claim 1 or 2, The device 1 is a battery for a mobile phone terminal, the contact terminal on the device 1 side is a speaker output terminal and a microphone input terminal of the mobile terminal extending the microphone input terminal to the back of the battery housing, device 2 is a hands-free device The two-side contact terminal is a hands-free speaker input terminal and a hands-free microphone output terminal.