KR20080003401U - A charger of mobile phone - Google Patents

Abstract

The present invention discloses a battery pack charger for a mobile communication terminal.

The battery pack charger for a mobile communication terminal according to the present invention includes a slot into which a battery pack having a connection terminal is inserted and a chamber in which a printed circuit board is installed, which is disposed to one side of the slot and is connected to a power cable for receiving power supply from the outside. A holder case which is installed in the chamber, a connector housing in which a terminal hole is formed on an exposed surface side of which one side is exposed to the slot side, and a contact end bent in a triangular shape protruding toward the slot side through the terminal hole; A curved portion that is bent into a “U” shape extending from the other end thereof, a horizontal portion extending horizontally from the curved portion to contact one side of the connector housing, and bent vertically from the horizontal portion, the end of which is electrically connected to the printed circuit board. And a charging terminal forming a vertical portion to be connected, wherein the connector housing is provided with a number of charging terminals. A locking hole penetrating perpendicularly to one side of the flat portion is formed, and the charging terminal has a locking plate portion which is formed in an expanded size compared to the hole for the terminal so that one end extending from the contacting end is prevented from being separated into the slot. The locking piece is formed at one end of the horizontal portion to be fitted into the locking hole.

The battery pack charger for a mobile communication terminal according to the present invention configured as described above has a locking plate portion in which one end of the contact end portion passed through the terminal hole of the connecting housing is extended to the width of the terminal hole. Forming the engaging piece and by changing the simple structure to be located in the engaging hole of the connecting housing has the advantage of preventing the deformation and position shift of the charging terminal due to frequent contact with the battery pack to achieve long life.

In particular, by providing a stable charging environment provides a useful effect that can increase the customer satisfaction and competitiveness of the product according to the quality improvement.

Mobile phone, charger, battery, terminal

Description

Battery pack charger for mobile communication terminal {A charger of mobile phone}

1 is an exploded perspective view showing the main configuration of the battery pack charger according to the prior art,

2 is an exploded perspective view showing a battery pack charger for a mobile communication terminal according to the present invention;

3 is an exploded perspective view showing a main configuration of a battery pack charger for a mobile communication terminal according to the present invention;

Figure 4 is a cross-sectional view for explaining the use of the use example of the charger according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: battery pack charger 10: holder case

11: slot 13: chamber

20: connector housing 21: hole for the terminal

23: engaging hole 30: charging terminal

31: contact end 33: curved portion

35: horizontal portion 35a: locking piece

37: vertical part 39: locking plate part

p: printed circuit board

The present invention relates to a battery pack charger for charging a battery pack of a mobile communication terminal, and more particularly to ensure long life by reducing the departure and fatigue of the charging terminal due to frequent contact with the battery pack. The present invention relates to a battery pack charger of a mobile communication terminal.

In recent years, technologies of various mobile devices, which are easy to carry and have enhanced transmission and reception of voice information and data, have been rapidly developed and distributed. Communication terminals are not only transmitting voice and text information, but also various kinds of multimedia technologies such as camera and video communication functions, MP3 and DMB, etc. are being applied in addition to various data transmission / reception functions.

On the other hand, the mobile communication terminal is provided with a detachable battery pack, the battery pack is charged through a charger, the charger is provided in the form of mounting the mobile communication terminal greatly depending on the type to perform the charging The cradle is largely divided into a holder-type charger that separates the battery pack from the mobile communication terminal and charges it separately.

Looking at the structure of a conventional battery pack charger, a holder case for forming a slot that can be inserted into the battery pack on one side while forming an outer body, and is mounted inside the holder case to a printed circuit board having a charging circuit One end is connected and the other end is composed of a connector housing having a charging terminal for applying a current in contact with the connection terminal of the battery pack.

1 is a perspective view showing a main configuration of a battery pack charger according to the prior art, the figure is provided with a holder case (not shown) forming a slot for inserting a battery pack, and is provided on one inner side of the holder case, The connector housing 110 is provided in the form of a hollow block, and the contact terminal (not shown) of the battery pack (not shown) mounted in the connector housing 110 and inserted into the slot of the holder case. The charging terminal 130 in contact with is shown.

That is, the charging terminal 130 has one end protruding toward the slot side through the terminal hole 111 formed through the connector housing 110 to form a contact end 131 that is bent in a triangle shape. One end extending vertically from the contact end portion 131 is bent in a “U” shape to be elastically supported when the contact end portion 131 is pressed inward, that is, to the right side when viewed in the drawing. The curved portion 113 for forming is formed.

In addition, the horizontal portion 115 which is horizontally constrained by being vertically bent at an end extending vertically from the curved portion 113 and fitted into the fitting portion 135 of the connector housing 110 is vertically constrained. The vertical portion 117 extends downward from the end of the horizontal portion 115 and is connected to the printed circuit board installed at one side of the holder case 101 by soldering.

On the other hand, the printed circuit board (p) is a configuration that is connected to a power cable (not shown) for receiving power from the outside.

In the battery pack charger having such a configuration, when the battery pack is inserted into the slot of the holder case, the contact terminal formed on one side of the battery pack presses the contact end 131 of the charging terminal 130 to maintain an electrical contact state. Charging is performed.

However, in the conventional battery pack charger for a mobile communication terminal having the above configuration, the contact end 131 of the charging terminal 130 is pressed by the battery pack inserted into the slot 103 of the holder case 101. It is elastically deformed in the opposite direction, in which case when the user suddenly separates the battery pack on the slot 103 of the holder case 101 by the repulsive force by the sudden elastic recovery force of the contact end portion 131 for the terminal hole One end caught in the inner side of 111 has a problem of jumping out toward the slot 103 through the terminal hole 111 of the connector housing 110.

In addition, when the pressing force caused by the battery pack is excessively acted, the position of the charging terminal 130 is distorted, resulting in a problem of contact failure with the battery pack.

That is, when the battery pack is inserted into the slot 103, the connection terminal of the battery pack is primarily elastically deformed while the contact terminal 131, which is a protruding portion of the charging terminal 130, is first pressed and then the curved portion ( 113) is the secondary elastic deformation to cancel the pressing force, if the pressing force is repeatedly applied to the charging terminal 130 its own elastic force is reduced by fatigue (疲勞 fatigue) consequently the charging terminal 130 The whole is pushed by the pressing force.

Therefore, since the charging terminal 130 is deformed to the connector housing 110 side by the pressing force, as a result, the contact end portion 131 is not accurately disposed in the terminal hole 111 and is distorted or displaced in the vertical direction so that reliability of the product Not only was it degraded, but there was a problem that the complaints from consumers were aggravated.

The present invention is devised to solve the above problems, the present invention is to ensure that the charging terminal provided inside the holder case in which the battery pack is stored to be firmly positioned to prevent deformation and departure by the pressing force of the battery pack. The purpose of the present invention is to provide a battery pack charger for a mobile communication terminal that can be prevented to ensure the reliability and long life of the product.

Battery pack charger for a mobile communication terminal according to the present invention for realizing the above object, the battery pack having a connection terminal is inserted into the slot and one side of the slot is connected to a power cable for receiving power supply from the outside A holder case in which a chamber in which a printed circuit board is installed is formed, a connector housing formed in the chamber, and a terminal hole is formed on an exposed surface side of which one side is exposed to the slot side, and a protruding toward the slot side through the terminal hole. The curved end portion is bent in a triangular shape and the curved portion that is bent in the "U" shape extending from the other end thereof, and the horizontal portion extending from this curved portion to contact one side of the connector housing and vertically bent at this horizontal portion. A charging terminal whose end forms a vertical portion electrically connected to the printed circuit board, The connector housing has a locking hole that is vertically penetrated to one side where the horizontal portion of the charging terminal contacts, and the charging terminal is extended in size compared to the hole for the terminal so that one end extending from the contact end is prevented from being separated into the slot side. It is characterized in that the engaging piece is formed on one end of the horizontal plate corresponding to be fitted to the locking plate portion and the locking hole is formed.

As a preferable feature of the present invention, the locking piece is formed by cutting one end of the horizontal portion several times, or is configured by welding one end of the member of the length member to the horizontal portion 35 by welding.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in this specification and claims are consistent with the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to best describe his or her own design. It must be interpreted as meaning and concept.

Hereinafter, a preferred embodiment of a battery pack charger for a mobile communication terminal according to the present invention will be described with reference to the accompanying drawings.

2 is an exploded perspective view showing a battery pack charger for a mobile communication terminal according to the present invention, Figure 3 is an exploded perspective view showing the main configuration of the battery pack charger for a mobile communication terminal according to the present invention.

As shown therein, the battery pack charger 1 for a mobile communication terminal of the present invention is largely composed of a holder case 10, a connector housing 20, and a charging terminal 30.

The holder case 10 has an inlet of a slot 11 into which a battery pack B of a mobile communication terminal such as a mobile phone is fitted on one side thereof, and a lid 17 that is selectively detachably coupled to the inlet. Fitted, one side is provided as a cover 19 for the assembly of the various electrical components configured therein is provided to be selectively removable.

The holder case 10 has a chamber 13 formed in a shape partitioned with the slot 11 therein, the chamber 13 is a power cable (pc) that is supplied with power from the outside is electrically printed The circuit board p is installed. Here, the printed circuit board (p) is formed with a charging circuit (not shown) and one side is provided with a connection port (cp) to be connected to the power cable (pc) as shown in the figure. Since the structure of the printed circuit board p is implemented by a known technique, detailed description thereof will be omitted.

The holder case 10 configured as described above inserts the battery pack B for charging into the slot 11, and then covers the cover 17 with the slot 11 to prevent the holder 11 from being inserted into the slot 11. Charging is performed by inserting the battery pack B into electrical contact with the contact end 31 of the charging terminal 30 to be described later.

The connector housing 20 is installed in the chamber 13 and has a structure in which a hole 21 for a terminal is formed on an exposed surface of which one side is exposed to the slot 11 side. The connector housing 20 is molded into an injection molding as a kind of support structure for supporting the charging terminal 30 to be described later.

In the connector housing 20 having such a configuration, at least two or more terminal holes 21 having at least two holes are formed at equal intervals on the exposed surface exposed to the slot 11 side. Looking up, the engaging hole 23 is formed in a straight line corresponding to the terminal hole 21 in the upper side. Here, the terminal hole 21 is formed as a through hole of a long hole, and the locking hole 23 is formed as a through hole having a relatively smaller size than the terminal hole 21.

The connector housing 20 configured as described above is provided in the form of being fitted into the slot 11 formed in the holder case 10 and the partition wall (not shown) for partitioning the chamber 13, and welding if necessary. It can also be fixed in place using an adhesive.

The charging terminal 30 forms a contact end portion 31 that is bent in a triangular shape protruding toward the slot 11 through the terminal hole 21 of the connector housing 20.

Here, both ends of the contact end portion 31 extend vertically to contact the inner surface of the connector housing 20 with respect to the inner side of the connector housing 20, one end of which is the upper end portion of the terminal hole 21. The locking plate portion 39 having an expanded size is formed integrally with the above, and the locking plate portion 39 at this time has an enlarged size compared to the hole 21 for the terminal. Deviation to the slot 11 side through () is essentially prevented.

In addition, the other end of the contact end 31 is connected to the curved portion 33 is formed in the "U" shape, the curved portion 33 at this time elastic displacement with respect to the external force applied from the slot 11 side It acts as a shock absorber.

The curved portion 33 is a horizontal portion 35 is formed to be bent in the horizontal direction is extended, the horizontal portion 35 at this time to the fitting portion 29 provided on the upper inner surface of the connector housing 20 It is fitted to prevent the flow in the vertical direction.

The horizontal portion 35 has a structure in which a locking piece 35a fitted to the locking hole 23 is formed at a position corresponding to the locking hole 23 of the connector housing 20. The 35a may be formed by cutting one end of the horizontal portion 35 in a predetermined shape, or may be configured by welding one end of the length member to the horizontal portion 35 by welding.

In addition, the curved portion 33 is bent in a vertical direction and extends downward, and a vertical portion 37 is formed, the end of which is electrically connected to the printed circuit board p by soldering or the like.

An example of using the battery pack charger for a mobile communication terminal configured as described above will be described with reference to FIG. 4 as follows.

First, the battery pack B is separated from a mobile communication terminal such as a mobile phone and then inserted into the slot 11 of the holder case 10 which is the main body of the battery pack charger 1 of the present invention. In this case, the battery pack B inserted into the slot 11 is positioned in such a state that the connection terminal (not shown) formed at one side thereof may be electrically contacted with the contact terminal 31 of the charging terminal 30. It will have to be inserted.

Subsequently, when the lid 17 is coupled to the slot 11 inlet of the holder case 10, the battery pack B is pressed in the direction in which the slot 11 is inserted into the contact end of the charging terminal 30 ( The charging is achieved by electrical connection with 31).

Meanwhile, the charging terminal 30 primarily causes elastic deformation while the contact end 31 protruding in a triangular shape is first pressed by the entry of the battery pack B, and the elastic displacement of the contact end 31 is caused. By the secondary elastic deformation of the curved portion 33 is canceled by the pressing force by the battery pack (B).

At this time, when the pressing force that is not reduced in the curved portion 33 is transmitted to the horizontal portion 35, the locking piece 35a of the horizontal portion 35 is caught in the locking hole 23 of the connector housing 20. Since the state is stably prevented from being pushed in the direction in which the pressing force acts, it is possible to prevent the poor connection with the battery pack (B) due to the position shift of the charging terminal (30).

On the other hand, the present invention is not limited to the embodiments described, it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention.

Therefore, such modifications or variations will have to belong to the utility model registration claims of the present invention.

The battery pack charger for a mobile communication terminal of the present invention constructed and operated as described above forms a locking plate portion which extends one end of the contact end portion passed through the terminal hole of the connecting housing to the width of the terminal hole. Forming a locking piece at one end and the simple structure change to place it in the locking hole of the connecting housing has the advantage of preventing the deformation and positional shift of the charging terminal due to frequent contact with the battery pack to improve the long life.

In particular, by providing a stable charging environment provides a useful effect that can increase the customer satisfaction and competitiveness of the product according to the quality improvement.

Claims (2)

A chamber in which a slot 11 into which a battery pack B having a connection terminal is inserted and a printed circuit board p arranged at one side of the slot 11 and connected to a power cable for receiving a power supply from the outside is installed. A holder case 10 in which 13 is formed; A connector housing (20) installed in the chamber (13) and having a terminal hole (21) formed on an exposed surface side of which one side thereof is exposed to the slot (11) side; The contact end 31 bent in a triangular shape protruding toward the slot 11 through the terminal hole 21 and the curved portion 33 bent in a “U” shape extending from the other end thereof and the curved portion ( A horizontal portion 35 extending horizontally from 33) and contacting one side of the connector housing 20 and a vertical portion 37 which is bent vertically at the horizontal portion and whose ends are electrically connected to the printed circuit board p. It includes a charging terminal 30 to form a, The connector housing 20 has a locking hole 23 penetrating perpendicularly to one side of the horizontal portion 35 of the charging terminal 30 is in contact, The charging terminal 30 has a locking plate portion 39 and the locking hole which are formed in an extended size compared to the terminal hole 21 so that one end extending from the contact end 31 is prevented from being separated into the slot 11 side. Battery pack charger for a mobile communication terminal, characterized in that the engaging piece (35a) is formed at one end of the horizontal portion (35) corresponding to be fitted to (23). 2. The movement according to claim 1, wherein the locking piece (35a) is formed by cutting one end of the horizontal portion (35) several times, or is formed by welding one end of the length member to the horizontal portion (35) by welding. Battery pack charger for communication terminals.

Images