KR102099470B1 - Laser pointer charged by non-contact method and wireless charger for laser pointer - Google Patents

Abstract

The present invention, the housing; A beam generator installed at one end of the housing; A battery for supplying power to the beam generator; A secondary coil that receives a wireless power signal from a wireless power transmission device; And a wireless charging device for a laser pointer and a laser pointer that is charged by a controller control unit rectifying a wireless power signal received through the secondary coil and supplying power to the battery.

Description

Laser pointer charged in a non-contact manner and wireless charging device for laser pointers {LASER POINTER CHARGED BY NON-CONTACT METHOD AND WIRELESS CHARGER FOR LASER POINTER}

The present invention relates to a laser pointer and a wireless charging device for laser pointers that are charged in a non-contact manner with improved usability.

In general, a laser pointer is a mechanism that can be used to indicate a specific content using a strong laser beam densely concentrated as a point, and is often used for presentations by using a machine, an OHP, or a computer in a conference or lecture.

Conventional laser pointers have a fixed terminal on the circumferential surface of the housing and are mounted on the body portion that embeds a battery for power supply in the interior space, and a beam generator that is mounted on the tip of the body portion and irradiates the laser beam through the battery for power supply And it is screwed to the back of the body portion is made of a rear end cap provided with a movable terminal for operating the laser beam through the fixed terminal, as well as replacing the battery for power supply.

Accordingly, when a laser pointer is to be used, when the movable terminal fixed to the rear end cap is pressed at a predetermined separation distance on the circumferential surface of the fixed terminal provided in the body portion, the movable terminal contacts the fixed terminal and the laser The beam is irradiated.

In the case of such a laser pointer, when the battery is discharged, the battery must be replaced or if it is not replaced, it cannot be used due to insufficient power. In addition, when giving a presentation with a laser pointer, in order to page up or down the presentation material, a separate communication unit must be coupled to the USB terminal of an external device (ie a notebook computer), and a separate communication unit must also be installed in the laser pointer.

The present invention has been devised to solve the above-described problems, and is to provide a laser pointer and a wireless charging device used therein for allowing a laser pointer to be charged in a non-contact manner using a wireless power charging system.

In addition, the control unit generated by the laser pointer is transmitted to the wireless power transmission device using a communication unit built in the laser pointer, and the wireless power transmission device transmits the control command to an external device such as a laptop, thereby increasing user convenience. It is possible to provide a laser pointer that is charged in a non-contact manner and a wireless charging device for the laser pointer.

In order to solve the above problems, a laser pointer that is charged in a non-contact manner, which is an embodiment of the present invention, is provided with a housing; A beam generator installed at one end of the housing; A battery for supplying power to the beam generator; A secondary coil that receives a wireless power signal from a wireless power transmission device; And a control unit rectifying a wireless power signal received through the secondary coil to supply power to the battery.

According to an aspect of an embodiment of the present invention, the housing is cylindrical, and the secondary coil is a metal pattern on the FPCB, and may be installed along the side surface of the housing.

According to an aspect of an embodiment of the present invention, the secondary coil is installed on the bottom surface of the housing, and the laser pointer further includes a shielding shield installed to absorb or shield the magnetic field generated from the secondary coil. can do.

According to an aspect of an embodiment of the present invention, the laser pointer is configured to be mounted and detachable on the housing, and a shielding shield absorbing or shielding the magnetic field generated from the secondary coil, the control unit and the secondary coil It may further include a built-in cap.

According to an aspect of an embodiment of the present invention, the cap may further include an auxiliary battery charged with electric power supplied by the controller.

According to an aspect of an embodiment of the present invention, the laser pointer further includes a user input unit for generating a control command for an external electronic device and a communication unit for transmitting the control command to the wireless power transmission device, The control unit may transmit the control command to the wireless power transmission device through the communication unit.

Another embodiment of the present invention, a wireless charging device for a laser pointer includes: a housing including a recess for receiving a laser pointer on an upper surface; A primary coil installed in the recess to transmit a wireless power signal to a secondary coil of a non-contact rechargeable laser pointer; A display unit for displaying whether the wireless power receiving device is normally charged; A connector unit for receiving external power; And a transmission control unit for generating a wireless power signal using the external power received through the connector unit and transmitting it to the secondary coil of the laser pointer through the primary coil.

According to an aspect of another embodiment of the present invention, the wireless charging device for a laser pointer further includes a communication unit for receiving a control command from the laser pointer, and the transmission control unit uses the connector unit to operate the laser. The control command transmitted from the pointer can be controlled to be wired to an external electronic device.

According to an aspect of another embodiment of the present invention, it may include one of a page down signal, a page up signal, a scroll signal, a volume down signal, a volume up signal, and a mute signal.

According to an aspect of another embodiment of the present invention, the recess portion may be formed in a shape that accommodates the bottom surface of the laser pointer and allows the laser pointer to stand and be charged.

According to an aspect of another embodiment of the present invention, when the secondary coil of the laser pointer is attached to the circumferential surface of the laser pointer, the recess portion may be formed in a shape to partially receive the laser pointer while lying down. .

According to an embodiment of the present invention having the above-described configuration, as the laser pointer is charged in a non-contact manner, there is no need to replace the battery, so maintenance costs are reduced and charging and use are convenient.

In addition, when used together with a notebook, the commands of page up and page down can be output through a laser pointer, without the need to install a separate communication module in the notebook.

In addition, according to an embodiment of the present invention, the primary coil is attached to the recessed portion of the wireless power transmission device, and a secondary coil is installed at the portion inserted into the recessed portion of the housing of the laser pointer, thereby charging position Since it is automatically aligned and magnetic leakage is prevented, the wireless power transmission efficiency is increased.

1A is a perspective view of a laser pointer that is an embodiment of the present invention.
1B is a cross-sectional view of a laser pointer that is an embodiment of the present invention.
1C is a block diagram for explaining the electronic configuration of a laser pointer charged in a non-contact manner, which is an embodiment of the present invention.
Figure 2 is a block diagram for explaining the electronic configuration of a wireless charging device for a laser pointer that is another embodiment of the present invention.
3A and 3B are views for explaining a state in which the laser pointer is charged in the wireless charging device for a laser pointer described in FIG. 2.
4 is a view for explaining an example of using a laser pointer and a non-contact wireless charging device that is an embodiment of the present invention.

Hereinafter, the laser pointer 100 and the wireless charging device 200 for a laser pointer that are charged in a non-contact manner, which is an embodiment of the present invention, will be described in detail with reference to the drawings.

1A is a perspective view of a laser pointer related to an embodiment of the present invention. As shown, a beam generating unit 110 is installed at the tip, and a user input unit 120 is installed at the side of the housing. The user input unit 120 includes an on-off switch for turning on / off the operation of the beam generator 110, and when presenting from an external electronic device (laptop or PC), page down, page up, volume down, volume up, mute ( It may include a button switch for generating a control command, such as silence).

1A, a cap 100-1 may be attached to the laser pointer according to the present invention. This cap is an optional element in the present invention, and the components included in the cap may be integrally formed with the body 100-2 according to the purpose of use.

On the other hand, when there is no cap 100-1, an internal battery 150 and a secondary coil 130 for charging the internal battery 150 are installed inside the laser pointer 100 as a main body. The secondary coil 130 may be installed on the circumferential surface of the housing (see FIG. 3A) or may be installed on the rear end (bottom) of the housing (see FIG. 3B). When installed on the circumferential surface, the secondary coil 130 may be formed of a metal pattern on the FPCB.

Meanwhile, the secondary coil 130 may further include a shielding shield 170 for absorbing or shielding the magnetic field generated from the secondary coil 130. At this time, the shield shield 170 is formed to surround the secondary coil 130, it is possible to prevent the leakage magnetic field to adversely affect the substrate (ie, the control unit 160).

In the laser pointer 100, which is configured as described above, in one embodiment of the present invention, the laser beam is generated in the beam generating unit 110 as the user operates the on / off switch, and the user may page up or When a down command is issued, this control command is transmitted to the notebook, and the presentation screen is changed. This operation will be described in more detail with reference to FIG. 4.

1B shows a cross-sectional view of a removable (ie, separable cap and body) laser pointer. As shown in Figure 1b, the body 100-2, only the beam generating unit 110, the battery 150, the user input unit 120 and a substrate (not shown) for controlling it are built, and the cap 100- 1), the secondary coil 130, the shield shield 170, a separate substrate 160 (with a separate charging control unit and rectifying unit), and the auxiliary battery 150-1 may be formed. Then, the cap (100-2) and the main body (100-1) is, through the contact terminal 180, is electrically connected when both are fastened.

In other words, when fastening, when the wireless power signal is received through the secondary coil 130 built in the cap 100-1, the auxiliary battery 150-1 and the battery 150 are charged. In addition, when the cap 100-1 and the main body 100-2 are separated, the auxiliary battery 150-1 is used using the cap 100-1 even while using the laser pointer through the main body 100-2. ). In addition, the shielding shield 170 is configured to absorb or shield the magnetic field generated from the secondary coil 130, so that the substrate and the like are not affected by the magnetic field generated by the secondary coil 130, thereby improving operational stability. Will be strengthened. By configuring such a separate cap 100-1, the laser pointer can be operated using an auxiliary battery attached to the cap 100-1 even when the battery charge is insufficient.

Meanwhile, the auxiliary battery 150-1 in the cap 100-1 is a selectable element. That is, without the auxiliary battery 150-1, the secondary coil 130 and the shielding shield 170 may be built in the cap 100-1 to charge the battery 150.

As described above, in the case of including the cap 100-1, even if the power receiving module, which is the main cause of the failure, fails, there is no need to replace and repair the main body 100-2, only the cap 100-1. Since it is replaced or repaired, it is possible not only to reduce the repair cost, but also to use the laser pointer for a certain period while replacing or repairing the cap 100-1.

Hereinafter, an electronic configuration of a laser pointer charged in a non-contact manner, which is an embodiment of the present invention, will be described with reference to FIG. 1C.

1C is a block diagram illustrating an electronic configuration of a laser pointer charged in a non-contact manner, which is an embodiment of the present invention. As illustrated, the laser pointer 100, which is an embodiment of the present invention, includes a beam generating unit 110, a communication unit 115, a user input unit 120, a secondary coil 130, a rectifying unit 140, and a battery ( 150) and a control unit 160.

Here, the secondary coil 130 receives wireless power transmitted from a wireless power charging device (herein, a wireless charging device for a laser pointer 200 (see FIG. 2)), charging state information and a laser pointer 100 Is a component for transmitting ID information of a pulse signal or a pulse width modulation method. That is, through the electromagnetic induction method, the varying magnetic force (wireless power signal) from the primary coil 210 is converted into AC power.

Here, the converted AC power is changed from the rectifying unit 140 to a DC power source, so that the battery 150 is charged under the control of the control unit 160.

Meanwhile, as described with reference to FIG. 1A, the laser pointer 100 according to the present invention may transmit a control command, in which case the communication unit 115 may be used. That is, when a control command is generated through the user input unit 120 of the laser pointer 100, the control command is transmitted to the communication unit 230 of the wireless charging device 200 for a laser pointer through the communication unit 115. . At this time, the transmission control unit 240 of the wireless charger is supplied with power through the connector unit 300 (for example, a USB connector), and transmits this control command to a laptop (external electronic device) by wire, and this control command The notebook that received the will operate according to this command.

By configuring in this way, it is possible to improve not only the ease of charging the laser pointer, but also the convenience of use. This will be described in more detail with reference to FIG. 4.

Hereinafter, a configuration of a wireless charging device for a laser pointer, which is another embodiment of the present invention, will be described in more detail with reference to FIG. 2.

2 is a block diagram illustrating an electronic configuration of a wireless charging device for a laser pointer, which is another embodiment of the present invention. As shown, the wireless charging device 200 for a laser pointer, which is another embodiment of the present invention, the primary coil 210 for transmitting the power signal, the display unit 220, the communication unit 230, and the transmission control unit 240 It may include.

The transmission control unit 240 transmits the wireless power signal through the primary coil 210 using the power from the connector 300. The laser pointer 100 of FIG. 1 receives this wireless power signal to charge the battery 150 and the auxiliary battery 150-1. At this time, the external power may be the USB connector part of the notebook, and in this case, not only can the power be supplied from the notebook, but also the control command from the laser pointer can be transmitted to the notebook through the USB connector part. This will be described in more detail in FIG. 4.

The display unit 220 functions to display the charging state of the laser pointer 100, which is a charging target. That is, the current charging state may be indicated by using the charging state information of the laser pointer 100 received through the primary coil 210. The display unit 220 may indicate a charging state for each laser pointer 100, or may indicate a charging state of the entire laser pointer 100 (ie, when charging multiple laser pointers).

The communication unit 230 is a component for receiving a control command from the laser pointer and transmitting the control command to a laptop or the like. In the detailed description of the present invention, the control command from the laser pointer 100 is received through the communication unit 230, and this control command is transmitted to the notebook through the connector unit 300. In addition, synchronization is performed through the communication unit. You can wirelessly transmit it to your laptop.

The external configuration and charging state of the wireless charging device 200 for a laser pointer having the above-described electronic configuration will be described in more detail with reference to FIG. 3.

3A and 3B are diagrams for explaining a state in which the laser pointer 100 is charged in the wireless charging device 200 for a laser pointer described in FIG. 2. As shown, in FIG. 3A, the laser pointer 100 is charged in the lying state, and in FIG. 3B, it is charged in the erected state.

As shown in FIGS. 3A and 3B, a recess portion for receiving a portion of the laser pointer 100 is formed on the top surface of the non-contact wireless charger 200, and the primary coil 210 is provided in the recess portion Can be installed. Then, the laser pointer 100 is laid or erected on this recess. Then, when charging is started, the charging state can be known by the LED display unit 220 installed on the side corresponding to each recess.

Hereinafter, a usage form of a laser pointer and a non-contact wireless charging device having the above-described configuration will be described in detail with reference to FIG. 4.

4 is a view for explaining an example of using a laser pointer and a non-contact wireless charging device that is an embodiment of the present invention. As shown, a non-contact wireless charging device 200 and a projector C according to the present invention are wired connected to the laptop A on the table B. The screen on the laptop A is displayed on the screen through the projector C. In this state, the presenter will hold and use the laser pointer 100 mounted on the non-contact wireless charger 200.

At this time, in order to change the screen displayed on the screen D, when a control command is generated through the user input unit 120 of the laser pointer 100, the control command is a non-contact wireless charging device 200 through wireless communication. Will be sent to The non-contact wireless charging device 200 receiving the control command transmits the control command to the notebook computer A through USB. The laptop (A) receiving the control command changes the screen to change the screen (D) screen.

By configuring in this way, since it is possible to transmit a control command to the notebook using a laser pointer without having to connect a separate communication gender to the notebook, it is possible to increase user convenience.

According to one embodiment of the present invention having the above-described configuration, since the laser pointer can be charged in a non-contact manner, charging is convenient. In addition, when used with a notebook, the commands of page up and page down can be output through a laser pointer, without the need to install a separate communication module in the notebook.

In addition, according to an embodiment of the present invention, since the primary coil is attached to the recessed portion of the wireless power transmission device, and the secondary coil is installed at the portion inserted into the recessed portion of the housing of the laser pointer, the wireless power Transmission efficiency is increased.

The laser pointer charged in the non-contact manner described above and the wireless charging device for the laser pointer are not limited to the configuration and method of the above-described embodiments, and the above embodiments are implemented so that various modifications can be made. All or some of the examples may be configured by selectively combining.

100: laser pointer
110: beam generating unit
120: user input
130: secondary coil
140: rectifier
150: secondary battery
160: control unit
200: wireless charging device for laser pointers
210: primary coil
220: display unit
230: Communication Department
240: transmission control
300: connector (USB connector)

Claims (11)

housing;
A beam generator installed at one end of the housing;
A battery for supplying power to the beam generator;
A secondary coil that receives a wireless power signal from a wireless power transmission device;
A control unit rectifying a wireless power signal received through the secondary coil to supply power to the battery;
A user input unit for generating a control command for an external electronic device;
A communication unit for transmitting the control command to the wireless power transmission device; And
A cap configured to be mounted and detachably mounted on the housing, wherein the cap includes the secondary coil, the control unit, and an auxiliary battery charged with electric power supplied by the control unit.
The control unit transmits the control command to the wireless power transmission device through the communication unit,
The housing, the beam generating unit, the battery, the user input unit and the communication unit is included in the main body,
The main body and the cap are electrically connected through a contact terminal, a laser pointer charged in a non-contact manner.
According to claim 1,
The housing is cylindrical,
The secondary coil, which is a metal pattern on an FPCB, is a laser pointer charged in a non-contact manner.
According to claim 1,
A laser pointer charged in a non-contact manner, further comprising a shielding shield installed to absorb or shield the magnetic field generated from the secondary coil.
According to claim 1,
The cap further includes a shielding shield that absorbs or shields a magnetic field generated from the secondary coil, and the laser pointer charged in a non-contact manner.
delete delete A housing including a recess for receiving a laser pointer on an upper surface;
A primary coil installed in the recess to transmit a wireless power signal to a secondary coil of a non-contact rechargeable laser pointer;
A display unit for displaying whether the wireless power receiver is normally charged;
A connector unit for receiving external power;
A transmission control unit for generating a wireless power signal using the external power received through the connector unit and transmitting it to the secondary coil of the laser pointer through the primary coil; And
And a communication unit for receiving a control command from the laser pointer,
The transmission control unit controls the wired transmission of a control command transmitted from the laser pointer to an external electronic device using the connector unit,
The secondary coil is installed in a portion inserted into the recess of the laser pointer, a wireless charging device for a laser pointer.
delete The method of claim 7,
The control command,
A wireless charging device for a laser pointer, comprising one of a page down signal, a page up signal, a scroll signal, a volume down signal, a volume up signal, and a mute signal.
The method of claim 7,
The recess portion,
A wireless charging device for a laser pointer that is formed in a shape that accommodates the bottom surface of the laser pointer and allows the laser pointer to stand and be charged.
The method of claim 7,
The recess portion,
When the secondary coil of the laser pointer is attached to the circumferential surface of the laser pointer, a wireless charging device for a laser pointer, which is formed in a shape such that the laser pointer is partially accommodated while lying down.

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