KR100440449B1 - Auxiliary battery device of portable audio or video player equipped with means for preventing formation of reverse voltage - Google Patents

Abstract

The present invention discloses a secondary battery device for a mobile audio or video player. The auxiliary battery device according to the present invention includes a projection-shaped poly rib made of an insulator to prevent the negative electrode from being connected to the positive electrode terminal when the auxiliary battery is inserted in the opposite direction to form a reverse voltage. Can be prevented. Therefore, overheating of the battery and damage to the circuit of the player main body due to the formation of the reverse voltage can be prevented. In addition, the secondary battery device of the present invention can be applied to various player bodies by forming an electrical connection and a mechanical coupling with the player body through an integrated connection plug and a support plug.

Description

Auxiliary battery device of portable audio or video player equipped with means for preventing formation of reverse voltage}

The present invention relates to a secondary battery device of a mobile audio or video player, and more particularly, to a secondary battery device having a means for preventing the formation of reverse voltage, and applicable to various mobile audio or video players. will be.

Mobility An audio or video player uses batteries or rechargeable batteries as the main power source for mobility. Due to the limitation of the capacity of the battery or rechargeable battery as the main power source, it is common to use a secondary battery. The auxiliary battery is used in the auxiliary battery unit. Such an auxiliary battery device includes an auxiliary battery case having a positive terminal and a negative terminal and a connection plug for transmitting electrical signals from the electrode terminals to the player body.

To date, the secondary battery unit of a portable audio or video player has a sliding battery case door (sliding type) or a sliding type (rotating type), which is cumbersome for users to install or replace batteries or rechargeable batteries in the auxiliary battery case. Demanded physical force. In addition, the conventional secondary battery device has a structure that is coupled to the side of the player body is difficult to apply to a variety of player devices, especially when the shape of the player body is circular and the thickness of the player body is not applicable. In addition, in the conventional secondary battery apparatus, when the electrodes of the secondary battery are reversed, that is, when the secondary battery is built in the reverse direction, a reverse voltage may be generated to overheat the battery or damage the circuit of the player body. However, in the prior art, there is no example in which a means for preventing the reverse voltage from being formed in the auxiliary battery is provided. Hereinafter, with reference to the drawings will be described in more detail the structure of a conventional secondary battery device. 1 is a view illustrating a structure of a conventional secondary battery device and a coupling form with a player body.

As shown in FIG. 1, the conventional secondary battery device 10 has a space for accommodating the battery 16. The battery 16 is stored after the user pushes the sliding door 15 open and closed by a sliding method (sliding method) by hand. On the other hand, there is another conventional secondary battery device having a rotary door instead of a sliding door. In addition, the conventional secondary battery device 10 is provided with a coupling screw 13 for coupling with the player body (20). The coupling screw 13 is coupled to the coupling groove 23 of the main body 20 by the operation of the coupling screw adjustment knob 14. In addition, the auxiliary battery device 10 has two plugs 11 and 12 connected to two electrode terminals for electrical connection with the main body 20, and these plugs 11 and 12 respectively have a screw connection. It is connected to the connection terminals 21 and 22 of the main body 20. This conventional secondary battery device requires a user's cumbersome physical force to open and close the door. In addition, since it is coupled to the side of the player body, if it is not formed to the same thickness as the main body, it has an aesthetic appearance, and it is not applicable to a body without a flat side, for example, a round CD player, and so on There is a limit that cannot be. In addition, the conventional secondary battery device is not provided with a means for preventing the formation of reverse voltage, so that the secondary battery is improperly built may cause overheating of the battery or damage to the circuit of the player body.

It is an object of the present invention to provide a secondary battery device with means which can prevent the formation of reverse voltage which may occur due to incorrect insertion of the secondary battery.

In addition, an object of the present invention is a secondary battery of a mobile audio or video player having a structure that can be stably combined with various player bodies, in particular, a structure that can be easily combined with a circular player body and a player body having a thin thickness. To provide a device.

In addition, other objects and advantages of the present invention will be clearly understood by the following detailed description of the present invention.

1 is a view illustrating a structure of a conventional secondary battery device and a coupling form with a player body.

2 is a state diagram representing a state in which the upper cover is closed when the auxiliary battery is inserted in the normal direction in the auxiliary battery device according to an embodiment of the present invention.

FIG. 3 is a state diagram illustrating an open state of an upper cover in the auxiliary battery device of FIG. 2.

4 is an exploded perspective view illustrating a coupling relationship of an upper cover, a case body, and a push knob unit in the auxiliary battery device of FIG. 2.

FIG. 5 is a state diagram illustrating a state in which a top cover is closed when an auxiliary battery is inserted in a reverse direction in a normal battery device according to an embodiment of the present invention.

Figure 6 is a plan view of the inside of the upper cover with a projection-shaped poly rib of the insulator in the auxiliary battery device according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

30: auxiliary battery unit 31: case body

32: Battery or rechargeable battery 33: (-) electrode terminal

35: first protrusion 39: upper cover

41: side of top cover 49: top of top cover

50: positive electrode terminal 51: hook of the upper cover

53: Reverse Voltage Formation Prevention Pol Rib

55: second protrusion 59: push knob

60: hook 61 of the push knob portion: torsion coil spring

65: connection line 67: connection plug

69: support plug 71: plug integration means

The present invention provides a secondary battery device for a mobile audio or video player. A secondary battery device according to the present invention includes a secondary battery internal case body capable of accommodating a battery or a rechargeable battery used as a secondary battery in a mobile audio or video player therein; A door formed at a side or top of the case body to install or replace an auxiliary battery in the case body; And an insulator formed in the shape of a protrusion near the (+) electrode terminal formed on the case body or the door so that the (-) electrode of the auxiliary battery does not connect to the (+) electrode terminal when the auxiliary battery is inserted in the reverse direction. And a plurality of pole ribs. A negative electrode terminal made of a compression spring connected to the negative electrode of the secondary battery is installed at an inner bottom of the case inside the auxiliary battery internal case, and is provided on the case body or the door opposite to the negative electrode terminal. Preferably, a positive electrode terminal connected to the positive electrode of the auxiliary battery is provided.

The auxiliary battery device of the present invention may further include an insulating plate covering the (+) electrode terminal region except for a portion in contact with the (+) electrode of the auxiliary battery, the poly rib is formed on the surface of the insulating plate do. In addition, the compression spring formed on the inner bottom of the auxiliary battery built-in case body may be a compression coil spring or a compression leaf spring.

In addition, the auxiliary battery device according to the present invention may further include a connection plug electrically connected to two electrode terminals formed in the case under the auxiliary battery built-in case body and electrically connected to an audio or video player body. have. The connection plug is preferably formed to engage with the case body and move integrally with the support plug by a line connected to the lower portion of the case body. The support plug is coupled to the audio or video player body together with the connection plug to support the connection of the connection plug to the player. As a result, the connection plug can be prevented from being rotated and released from the player body.

The auxiliary battery device according to the present invention is to prevent the (+) electrode terminal and the (-) electrode formed in the case body from being connected to each other when the auxiliary battery is built in the case in the opposite direction, that is, in the reverse direction ( +) Poles in the shape of insulators are formed inside the case body near the electrode terminals. The protrusion-shaped poly ribs provided in the auxiliary battery device according to the present invention can be applied to the auxiliary battery device that has been used in the related art, and preferably, the upper cover of the auxiliary battery built-in case as described below is used as a door. It can be applied to the secondary battery device of the structure. Hereinafter, an auxiliary battery device having the latter structure will be described as an example.

Hereinafter, the present invention will be described in detail with reference to the drawings. However, the auxiliary battery device described below and represented in the drawings is to present a specific embodiment of the present invention. Those skilled in the art to which the present invention pertains can readily derive various changes and modifications from the embodiments according to the present invention described below without departing from the spirit and scope of the present invention. Accordingly, it should be understood that such various changes and modifications fall within the scope of the present invention.

2 is a state diagram representing a state in which the upper cover is closed after the auxiliary battery is built in the normal direction in the auxiliary battery device according to an embodiment of the present invention, and FIG. 3 is a state in which the top cover is opened in the auxiliary battery device of FIG. 2. 4 is an exploded perspective view illustrating a coupling relationship between an upper cover, a case body, and a push knob in the auxiliary battery device of FIG. 2. On the other hand, Figure 5 is a state diagram representing a state in which the upper cover is closed after the secondary battery is built in the reverse direction, Figure 6 is a plan view showing the inside of the upper cover with the upper cover poly ribs.

As shown in the drawings, the auxiliary battery device 30 according to an embodiment of the present invention includes a case body 31, an upper cover 39 and a connecting line (3) containing a secondary battery 32 such as a battery or a rechargeable battery ( 65 is connected to the case body 31 and includes a plug portion 71 for electrical connection with the player body.

The inner bottom of the auxiliary battery built-in case body 31 is provided with a compression coil spring 33 that is typically used as a negative electrode terminal. The compression coil spring 33 serves to push up the auxiliary battery 32 when the upper cover 39 is opened. In the drawings, a compression coil spring is used as a negative electrode terminal, but a compression leaf spring may be used instead.

The case body 31 may be formed by dividing the inner cylinder and the outer cylinder or may be formed as a single cylinder. In FIG. 2 and FIG. 3, the inner and outer cylinders are divided, and FIG. 4 is illustrated as a single cylinder for the sake of simplicity. As will be described later, it is preferable to use a case body divided into an inner cylinder and an outer cylinder in order to connect the conducting wire coming out from the positive electrode terminal to the connecting line 65.

As clearly shown in FIG. 4, first and second protrusions 37 and 55 protruding from the case body 31 in the vertical direction of the case body are formed to face each other. The first and second protrusions 37 and 55 may be formed in two parallel plate shapes and the two parallel plates may be horizontally connected to each other at a lower portion thereof. In addition, holes 37 and 57 are formed in the plates of the first and second protrusions 37 and 55, respectively.

The auxiliary battery built-in case upper cover 39 includes a side portion 41 coupled to the first protrusion 35 and the upper portion 49 covering the auxiliary battery built-in case body 31. The side part 41 of the upper cover 39 is provided with a hole 43 corresponding to the hole 37 of the first protrusion 35. Accordingly, the side portion 41 and the first protrusion 35 of the upper cover are coupled by two pins 45 connected by the spring 47. As such, the upper cover 49 coupled to the first protrusion 35 by pin coupling becomes a structure capable of rotating around the pin 45 coupled thereto. Although the shape of the pin is simply represented in FIG. 4, it is very easy for a person having ordinary skill in the art to design a pin in a shape suitable for joining, and thus a detailed description of the pin will be omitted. Shall be.

The upper 49 of the upper cover 39 has a positive electrode terminal 50 formed on an inner surface thereof to be connected to the positive electrode of the built-in auxiliary battery. The positive electrode terminal 50 is connected to the connecting line 65 along the extended lead. The conductive wires extending from the positive electrode terminal 50 may be formed in any shape. In the auxiliary battery device of the present invention, the upper cover 39 has a structure in which the pin 45 can be pivoted about its axis. In contact with the inner cylinder of the case body 31 with the side 41 of the upper cover closed, for example, an extended conductor is formed along the inner cylinder surface of the side 41 of the upper cover and the case body 31. Can be connected to the connecting line 65.

As one of the features of the present invention, an insulator-shaped pole rib 53 is formed on the upper cover 39, so that the negative electrode of the secondary battery is positive when the secondary battery is reversely inserted. It is possible to prevent the reverse voltage from forming by contacting the electrode terminal. That is, as shown in FIG. 5, when the auxiliary battery is inserted in the direction opposite to the normal direction, the negative electrode of the auxiliary battery is not connected to the positive electrode terminal due to the rib 53. For this purpose, the height of the rib 53 used in the present invention should be larger than the height of the (+) electrode terminal when the (+) electrode terminal slightly protrudes in the shape of a protrusion, and the height of the (+) electrode terminal and (+ ) It must be smaller than the sum of the heights of the protrusions of the electrode. This is because the positive electrode and the positive electrode terminal are not connected even when the auxiliary battery is inserted in the normal direction when the height of the rib 53 is larger than the sum. In addition, as shown in FIG. 6, the (+) electrode terminal typically does not form a conductor only at a portion in contact with the (+) electrode, but a conductor drawn out from the (+) electrode terminal should also be connected to the player body (+ It can be formed in a wide range including the contact portion with the electrode. In Figure 6 this is shown as 50 '. In this case, since the rib 53 cannot be formed directly on the surface of the upper cover, an insulating plate 54 can be formed first to cover the positive electrode terminal region other than the portion in contact with the positive electrode, and then the poly rib is formed thereon. 53 can be formed.

Moreover, the hook 51 is provided in the upper part 49 of the position which opposes the side part 41 of the upper cover 39 downward. The bent direction of the hooks 51 provided is outside of the case.

The push knob portion is coupled to the second protrusion 55 by a pin 63. The push knob portion extends upward from the push knob 59 and the push knob 59, which are touched by the user. 60 and a torsion coil spring 61. The hook 60 of the push knob portion is engaged with the hook 51 of the upper cover and is bent inward to correspond to the bending direction of the hook 51 of the upper cover. The torsion coil spring 61 is mounted inside the push knob part by the ring of the coil being fitted to the pin. In the mounted state, one end is supported by the case body and the other end is supported by the push knob 59.

As shown in FIG. 2, the auxiliary battery device 30 of the present invention having such a structure serves as a door for accommodating the auxiliary battery in the case body, and the hook of the upper cover (when the upper cover is closed). 51) and the hook 60 of the push knob portion is fitted. This hook engagement can be maintained by the effect of the force acting in the outward direction by the elasticity of the torsion coil spring 61 of the push knob portion pushes the hook 60 of the push knob portion inward. If the torsion coil spring 61 is not present, when the auxiliary battery device is inclined in the direction of the second protrusion 55, the hook coupling may be dismantled. Next, in order to replace the hook-up battery and to open the top cover by disassembling the hook as described above, the user simply touches the push knob 59 with a finger. Then, as shown in Figure 3, the push knob 59 enters inward while the hook 60 of the push knob part is opened outwards, and the hook coupling is disassembled. As the hook coupling is dismantled, the auxiliary battery 32 and the upper cover 39 freed from the hook coupling are forced upward by the elasticity of the compression coil spring 33 installed on the inner bottom of the case body 31. 39 is opened and the auxiliary battery 32 is slightly raised. At this time, the torsion coil spring 61 of the push knob portion exerts an elastic force on the push knob 59 in the outward direction in the open state, but the force causes a physical change, that is, the push knob portion is in the closed position. It is better to choose the spring's elasticity so that it doesn't get enough. That is, the torsion coil spring 61 functions to keep the push knob portion in the current state, that is, the position of the open state or the closed state, by appropriate selection of its elasticity. If there is no torsion coil spring 61 in the open state, when the auxiliary battery device is inclined in the direction of the first protrusion 35, the position of the push knob becomes a closed position, which makes it inconvenient to close the upper cover, that is, the door.

In order to close the upper cover 39 in the open state, the upper cover 39 is simply rotated and pressed downward. Then, as the hook 51 of the upper cover 39 presses down the inner portion of the push knob portion below the hook 60 of the push knob portion, this force and the elastic force of the torsion coil spring 61 are combined to push the push knob portion. Hook 60 is moved inward to form a hook coupling.

Therefore, the auxiliary battery device of the present invention can open and close the upper cover by a simple operation, that is, by pressing the push knob to open the upper cover (door) and pressing the upper cover downward to close the upper cover.

In addition, the auxiliary battery device 30 according to an embodiment of the present invention may have a connection plug 67 for electrical connection with the player body. The connection plug 67 is connected to the (+) electrode terminal 50 and the (-) electrode terminal 33 by a connection line 65 provided at the lower portion of the case body 31. The connection plug 67 is coupled to a corresponding connector formed in the player body, and is a connection means for transmitting the power of the auxiliary battery to the player body. The connecting means consisting of only one connecting plug 67 is an element which makes it easy to be separated from the main body by causing the auxiliary battery device to rotate about it. Therefore, the support plug 69 is integrally installed by the plug integrating means 71 together with the connection plug 67 in order to prevent rotation and detachment of the auxiliary battery device. The plug integrating means 71 is a means for integrally moving the support plug 69 and the connecting plug 67, and can be formed in the same way as the means for integrating two headphone or earphone jacks.

As described above, unlike the conventional auxiliary battery device that forms an electrical connection while maintaining a mechanical coupling with the side of the player body, the auxiliary battery device of the present invention is connected with a connection plug that can be mechanically coupled with the electrical connection at the same time. By using a support plug capable of supporting the engagement of the plug, it is possible not only to form a firm coupling with the player body but also to engage the player body of various shapes.

The secondary battery device of the mobile audio or video player according to the present invention includes a projection-shaped rib made of an insulator so that the negative electrode is connected to the positive electrode terminal when the secondary battery is inserted in the opposite direction. It can prevent the formation of reverse voltage. Therefore, overheating of the battery and damage to the circuit of the player main body due to the formation of the reverse voltage can be prevented. In addition, the secondary battery device according to the present invention has a structure that can be stably combined with a variety of player body, in particular a circular player body and a structure that can be easily combined with a player body having a thin thickness to a variety of player body Can be used.

Claims (7)

A secondary battery internal case body configured to accommodate a battery or a rechargeable battery used as a secondary battery in a portable audio or video player therein; A door formed at a side or top of the case body to install or replace an auxiliary battery in the case body; The insulator is formed in the shape of a protrusion near the (+) electrode terminal formed on the case body or the door to prevent the (-) electrode of the auxiliary battery from connecting to the (+) electrode terminal when the auxiliary battery is inserted in the reverse direction. Plurality of pole ribs; And And a connecting plug electrically connected to the two electrode terminals formed in the case under the auxiliary battery inner case body and electrically connected to an audio or video player body. The method of claim 1, A negative electrode terminal made of a compression spring connected to the negative electrode of the secondary battery is installed at an inner bottom of the case inside the auxiliary battery internal case, and is provided on the case body or the door opposite to the negative electrode terminal. A secondary battery device, characterized in that the (+) electrode terminal connected to the (+) electrode of the auxiliary battery is provided. The method of claim 1, And an insulating plate covering the (+) electrode terminal region except for a portion in contact with the (+) electrode of the auxiliary battery, wherein the poly rib is formed on a surface of the insulating plate. . The method of claim 1, Secondary battery device, characterized in that the compression spring formed on the inner bottom of the secondary battery built-in case body is a compression coil spring or compression plate spring. delete The method of claim 1, And a support plug for supporting the connection of the connection plug to the player by being coupled to the audio or video player body together with the connection plug to prevent the connection plug from rotating and disengaging from the player body. Secondary battery unit. The method of claim 6, The connection plug is coupled to the case body by a line connected to the lower portion of the case body, wherein the connection plug and the support plug is characterized in that the auxiliary battery is formed to move integrally.