Wireless charging type range finder

By setting a magnetic unit and coil between the rangefinder and the charging device, and wireless charging is performed using the principle of electromagnetic induction, the problem of laser rangefinder requiring frequent charging or replacement of batteries is solved, and convenient and efficient power supply and functional expansion are achieved.

CN120528050APending Publication Date: 2025-08-22ASIA OPTICAL CO INC
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Patent Information

Application Number
CN202410195562.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-02-21
Publication Date
2025-08-22

AI Technical Summary

Technical Problem

The existing laser rangefinder needs to be charged or replaced after multiple uses, which is inconvenient to use, especially in golf courses without charging facilities.

Method used

Wireless charging technology is adopted, by setting a magnetic unit and a coil between the rangefinder body and the charging device, wireless charging is performed using the principle of electromagnetic induction to avoid battery replacement.

Benefits of technology

It realizes a fast, portable and efficient charging method, extends the battery life of the rangefinder, reduces battery pollution, enriches the functions of the rangefinder and increases interactivity.

✦ Generated by Eureka AI based on patent content.

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Abstract

A wireless charging type range finder comprises at least one range finder body, a charging device and a magnetic unit. The range finder body comprises a range finding unit, a first control unit, a first power supply and a first coil. The range finding unit, the first power supply and the first coil are electrically connected to the first control unit. The charging device comprises a second control unit, a second power supply and a second coil. The second power supply and the second coil are electrically connected to the second control unit. The magnetic unit is combined with the range finder body and the charging device, so that the first coil corresponds to the second coil. The current of the second power supply passes through the second coil, and the current is generated in the first coil through the electromagnetic effect between the second coil and the first coil to charge the first power supply.
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Description

Technical Field

[0001] The present invention relates to the technical field of rangefinder equipment, and in particular to a wireless charging rangefinder with a wireless charging function. Background Art

[0002] Existing optical distance measuring devices have a wide range of applications, including engineering, measurement, and even recreational sports. Golfers often rely on measuring the distance between the ball's impact point and the fairway, or between the impact point and the green or hole, to determine the appropriate size of wood or iron club to use. In addition to traditional methods using an assistant (caddie) to assist with calculations, laser rangefinders have recently become widely used by golf enthusiasts to directly measure the required distance.

[0003] Existing laser rangefinders run out of power after multiple uses and therefore need to be recharged or have their batteries replaced before use. Since golf courses are outdoor venues and lack charging facilities, users must carry extra batteries, which is very inconvenient. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a wireless charging rangefinder that can be charged wirelessly using a mobile charging device, thereby solving the inconvenience caused by the user having to carry additional batteries in the prior art.

[0005] One embodiment of a wireless charging rangefinder according to the present invention includes at least one rangefinder body and a magnetic unit. The rangefinder body includes a rangefinder unit, a first control unit, a first power supply, a first coil, an objective lens unit, and an eyepiece unit. The rangefinder unit, the first power supply, and the first coil are electrically connected to the first control unit. An optical axis passes through the objective lens unit and the eyepiece unit. The magnetic unit allows the first coil to correspond to a second coil of a charging device, thereby allowing the rangefinder body to be charged by the charging device.

[0006] In another embodiment, it further includes a charging device, which includes a second control unit, a second power supply and a second coil. The second power supply and the second coil are electrically connected to the second control unit. The current of the second power supply passes through the second coil, and the electromagnetic effect between the second coil and the first coil generates a current in the first coil to charge the first power supply.

[0007] In another embodiment, the magnetic unit includes a first magnetic component and a second magnetic component. The first magnetic component is disposed on the rangefinder body, and the second magnetic component is disposed on the charging device. The first magnetic component and the second magnetic component attract each other to combine the charging device with the rangefinder body.

[0008] In another embodiment, the first magnetic component is arranged on the rangefinder body having a first shell, the first shell having a first connecting wall, the first coil is arranged on the first connecting wall, and the charging device further includes a second shell, the second shell having a second connecting wall, and the second coil is arranged on the second connecting wall.

[0009] In another embodiment, the magnetic unit further includes a second magnetic component, the first magnetic component and the second magnetic component attract each other so that the second combining wall of the charging device is combined with the first combining wall of the rangefinder body, the first magnetic component is arranged on the first combining wall of the first shell of the rangefinder body or a side wall opposite to the first combining wall, and the second magnetic component is arranged on the second combining wall of the second shell of the charging device or a side wall opposite to the second combining wall, the first combining wall has the largest surface area of ​​the first shell, and the normal of the first combining wall intersects with the optical axis.

[0010] In another embodiment, the rangefinder body further includes an anti-shake unit, which is combined with the distance measuring unit and electrically connected to the first control unit. When the rangefinder body shakes, the anti-shake unit keeps the distance measuring unit at a predetermined measuring position.

[0011] In another embodiment, the charging device further includes a location information generating unit electrically connected to the second control unit. The location information generating unit receives satellite signals to generate location data.

[0012] In another embodiment, the charging device further includes a charging device communication unit electrically connected to the second control unit. The charging device communication unit forms a signal connection with the electronic device, and the location data is transmitted to the electronic device via the charging device communication unit.

[0013] In another embodiment, the rangefinder body further includes a power detection unit electrically connected to the first control unit. The power detection unit detects the power level of the first power source. When the power level of the first power source reaches a set value, the first control unit generates a control signal.

[0014] In another embodiment, the rangefinder body further includes a rangefinder communication unit, which is electrically connected to the first control unit. The charging device further includes a charging device communication unit, which is electrically connected to the second control unit. The charging device communication unit and the rangefinder communication unit form a signal connection. The control signal is transmitted to the second control unit via the rangefinder communication unit and the charging device communication unit, and the second control unit stops the second power supply from supplying power to the second coil.

[0015] In another embodiment, the charging device further includes a display unit electrically connected to the second control unit.

[0016] In another embodiment, the charging device further includes a plurality of environmental sensors, including a temperature sensor, a humidity sensor, and a wind direction sensor.

[0017] In another embodiment, the charging device further includes a power management module and a charging interface, the charging interface is connected to the power management module, the power management module is electrically connected to the second controller, and the charging interface is connected to an external power source to charge the second power source through the power management module.

[0018] In another embodiment, it further includes a plurality of rangefinder bodies, and one of the electrical devices charges the plurality of rangefinder bodies.

[0019] The wireless charging rangefinder of the present invention utilizes a first coil in the rangefinder body and a second coil in the charging device. The first and second coils couple, utilizing the principle of electromagnetic induction, to transfer power from the charging device's second power source to the rangefinder body's first power source for charging. This provides fast, portable, and efficient wireless charging without removing the battery, providing long-lasting, reliable power to the rangefinder, extending battery life and reducing battery contamination. Furthermore, the device can be expanded with external, power-intensive practical functions, enriching its functionality and increasing its interactivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 1 is a system block diagram of an embodiment of a wireless charging rangefinder according to the present invention.

[0021] Figure 2 FIG. 1 is a perspective view of an embodiment of a wireless charging rangefinder according to the present invention.

[0022] Figure 3 for Figure 2 The usage status diagram of the wireless charging rangefinder.

[0023] Figure 4 for Figure 2 A perspective view of the wireless charging rangefinder body.

[0024] Figure 5 for Figure 2 A perspective view of a charging device for a wireless charging rangefinder.

[0025] Figure 6 for Figure 5 Partial cross-sectional view of a charging device.

[0026] Figure 7 The figure is a schematic diagram of the communication connection between the wireless charging rangefinder of the present invention and a mobile phone.

[0027] Figure 8 This is a schematic diagram of multiple rangefinder bodies of the present invention being wirelessly charged by one charging device. DETAILED DESCRIPTION

[0028] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , which shows an embodiment of the wireless charging type rangefinder of the present invention. The wireless charging type rangefinder 1 of this embodiment includes at least a rangefinder body 10 , a charging device 20 and a magnetic unit 30 .

[0029] The rangefinder body 10 includes a rangefinder unit 11, a first control unit 12, a first power supply 13, a first coil 14, a first housing 15, an objective lens unit 10a, and an eyepiece unit 10b. The rangefinder unit 11, the first control unit 12, the first power supply 13, and the first coil 14 are disposed within the first housing 15 and are electrically connected to the first control unit 12. An optical axis O passes through the objective lens unit 10a and the eyepiece unit 10b. The rangefinder unit 11 includes a light source, a beam projection lens, a beam receiving lens, and a sensor, thereby performing distance measurement. The first control unit 12 is a microprocessor, and the first power supply 13 is a lithium battery. The first control unit 12 and the first coil 14 are disposed on a circuit board. The first power supply 13 supplies power to the rangefinder unit 11 and the first control unit 12, enabling the user to measure distance using the rangefinder unit 11.

[0030] The charging device 20 includes a second control unit 21, a second power source 22, a second coil 23, and a second housing 24. The second control unit 21, second power source 22, and second coil 23 are disposed within the second housing 24. The second power source 22 and second coil 23 are electrically connected to the second control unit 21. In this embodiment, the second control unit 21 is a microprocessor or a single chip, and the second power source 22 is a lithium battery. The second control unit 21 and second coil 23 are disposed on a circuit board.

[0031] like Figure 4 and Figure 6As shown, the magnetic unit 30 connects the rangefinder body 10 and the charging device 20. In this embodiment, the magnetic unit 30 includes a first magnetic component 31 and a second magnetic component 32. The first magnetic component 31 is disposed on the inner surface of the first connecting wall 151 of the first housing 15 of the rangefinder body 10, and the second magnetic component 32 is disposed on the inner surface of the second connecting wall 241 of the second housing 24 of the charging device 20. When a user places the first connecting wall 151 of the first housing 15 and the second connecting wall 241 of the second housing 24 facing each other, the first magnetic component 31 and the second magnetic component 32 attract each other, coupling the charging device 20 to the rangefinder body 10. The first connecting wall 151 is the wall with the largest surface area of ​​the first housing 15, providing ample space for installation, maximizing the suction area, and increasing suction stability. A normal line N of the first connecting wall 151 is skewed or intersecting with the optical axis O. In this embodiment, the normal line N of the first connecting wall 151 is perpendicular to the optical axis O. In other embodiments, the normal N of the first coupling wall 151 may intersect or even be orthogonal to the optical axis O. The first coil 14 is disposed on the inner surface of the first coupling wall 151, and the second coil 23 is disposed on the inner surface of the second coupling wall 241. When the first magnetic component 31 and the second magnetic component 32 attract each other, causing the first coupling wall 151 to abut against the second coupling wall 241, the first coil 14 corresponds to the second coil 23. The current of the second power source 22 generates a magnetic field through the second coil 23, and the electromagnetic coupling effect between the second coil 23 and the first coil 14 generates a current in the first coil 14 due to the magnetic field, thereby charging the first power source 13.

[0032] Although the present embodiment arranges the first coil 14 and the first magnetic component 31 on the first coupling wall 151 so that the first coil 14 corresponds to the second coil 23 for electromagnetic coupling, the present invention is not limited thereto. In another embodiment, the first magnetic component 31 may be arranged on a side wall opposite the first coupling wall 151. By increasing the magnetic flux density of the first magnetic component 31, the magnetic field of the first magnetic component 31 passes through the rangefinder body 10 and generates a magnetic attraction with the second magnetic component 32 arranged on the second coupling wall 241 of the second housing 24 of the charging device 20, thereby similarly achieving the function of coupling the charging device 20 to the rangefinder body 10. Similarly, in yet another embodiment, the second magnetic component 32 may be arranged on a side wall opposite the second coupling wall 241.

[0033] Although the magnetic unit 30 of this embodiment utilizes a magnetic adsorption structure to achieve coupling of the charging device 20 to the rangefinder body 10 , the present invention is not limited thereto. In other embodiments, the first shell 15 and the second shell 24 may utilize a snap-fit ​​mechanism or a latch mechanism to couple the charging device 20 to the rangefinder body 10 , with the first coupling wall 151 and the second coupling wall 241 disposed opposite each other.

[0034] like Figure 1 As shown, the rangefinder body 10 of this embodiment further includes an anti-shake unit 16. This unit is coupled to the distance-measuring unit 11 and electrically connected to the first control unit 12. When the rangefinder body 10 is shaken, the anti-shake unit 16 maintains the distance-measuring unit 11 at a predetermined measuring position. The anti-shake unit 16 may include a coil, a magnet, and a magnetic sensing element (Hall sensor). The coil couples with the magnet to achieve position compensation. The magnetic sensing element detects the position of the magnet and feeds the position detection result back to the second control unit 12.

[0035] If the magnetic induction component (Hall sensor) of the anti-shake device in the prior art is too close to the first magnetic component 31, it may affect the magnetic induction component (Hall sensor). Therefore, when using the magnetic adsorption function, it may affect the ranging unit and cause its optical axis to deviate. Therefore, the magnetic adsorption structure of the prior art cannot coexist with the anti-shake function. The magnetic unit 30 of this embodiment fully considers the distance between the first magnetic component 31 and the magnetic induction component (Hall sensor), or considers the magnetic background of the first magnetic component 31, and accordingly adjusts the magnetic induction component (Hall sensor) so that the anti-shake unit can still normally compensate for the hand-held vibration under magnetic interference.

[0036] like Figure 1 、 Figure 5 and Figure 6 As shown, the charging device 20 further includes a position information generating unit 25, a charging device communication unit 26, a display unit 27 and a plurality of environmental sensors 28. The position information generating unit 25, the charging device communication unit 26, the display unit 27 and the plurality of environmental sensors 28 are electrically connected to the second control unit 21. The position information generating unit 25 receives satellite signals and generates position data. For example, the position information generating unit 25 can be a satellite positioning chip module, which receives signals such as the US Global Positioning System (GPS) or China's BeiDou Navigation Satellite System (BeiDou Navigation Satellite System) and generates position coordinate data. Combined with a map of a golf course, for example, the user can know the current position. The charging device communication unit 26 forms a signal connection with the rangefinder body 10 or an external electronic device, such as Figure 7 As shown, the charging device 20 is electrically connected to a mobile phone M. Multiple environmental sensors 28 monitor the environment. In this embodiment, the environmental sensors 28 include a temperature sensor, a humidity sensor, and a wind direction sensor, generating environmental data such as temperature, humidity, and wind direction. Position coordinate data and environmental data such as temperature, humidity, and wind direction can be displayed on a display unit 27 or transmitted to the mobile phone M for display via the charging device communication unit 26. The display unit 27 can be a touch screen that, in addition to displaying information, also allows the user to enter configuration data.

[0037] The charging device 20 further includes a power management module 29 and a charging interface 29a. The charging interface 29a is disposed in the second housing 24 and connected to the power management module 29. The power management module 29 comprises a charging circuit and is electrically connected to the second controller 21. The power management module 29 detects the power level of the second power source 22 and generates power data of the second power source 22, which can be displayed on the display unit 27. The charging interface 29a has a receptacle electrical connector, such as a USB Type-C connector, and is connected to an external power source (e.g., mains electricity) via a cable. Power from the external power source is transmitted via the charging interface 29a to the power management module 29 to charge the second power source 22.

[0038] The rangefinder body 10 further includes a rangefinder communication unit 17 and a power detection unit 18. Both the rangefinder communication unit 17 and the power detection unit 18 are electrically connected to the first control unit 12. The power detection unit 18 detects the power level of the first power source 13 and generates power data. The first control unit 12 compares the power data with a set value. When the power level of the first power source 13 reaches the set value, the first control unit 12 generates a control signal. The rangefinder communication unit 17 is signal-connected to the charging device communication unit 26. The control signal is transmitted via the rangefinder communication unit 17 and the charging device communication unit 26 to the second control unit 21, which then stops the second power source 22 from supplying power to the second coil 23. For example, the power detection unit 18 generates the control signal three seconds after detecting that the power level of the first power source 13 has reached 100%. The power data can also be transmitted to the second control unit 21 via the rangefinder communication unit 17 and the power detection unit 18, which then transmits it to the display unit 27 to display the power level of the first power source 13. The rangefinder communication unit 17 and the charging device communication unit 26 may be implemented using, for example, Bluetooth communication technology or WiFi communication technology.

[0039] like Figure 8 As shown, in another embodiment, a plurality of rangefinder bodies 10 can be charged by a single charging device 20. The charging device 20 can be mounted on a golf cart W. The charging device 20 has a larger second housing 24 and is provided with multiple second coils. When charging is required, the multiple rangefinder bodies 10 are attached to the charging device 20 using a magnetic attraction structure, and charging is performed corresponding to the multiple second coils.

[0040] The wireless charging rangefinder of the present invention utilizes a first coil in the rangefinder body and a second coil in the charging device. The first and second coils couple, utilizing the principle of electromagnetic induction, to transfer power from the charging device's second power source to the rangefinder body's first power source for charging. This provides fast, portable, and efficient wireless charging without removing the battery, providing long-lasting, reliable power to the rangefinder, extending battery life and reducing battery contamination. At the same time, practical functions that require large power consumption (such as but not limited to using the location information generating unit 25 to receive satellite signals to generate location data, the charging device communication unit 26 to form a signal connection with the electronic device, and the location data to be transmitted to the electronic device or multiple environmental sensors 28 via the charging device communication unit 26, and the environmental sensors 28 include but are not limited to temperature sensors, humidity sensors and wind direction sensors, etc.) are externally expanded to enrich its functions and increase the interactivity of the rangefinder. In another embodiment of the present case, the location information generating unit 25 and the environmental sensors 28 can be arranged in the rangefinder body 10 or the rangefinder communication unit 17 can form a signal connection with the charging device 20 or an external electronic device. For example, the rangefinder body 10 can be electrically connected to the mobile phone M. Because these functions are relatively power-consuming, the aforementioned relatively power-consuming functions are only enabled when the charging device 20 charges the rangefinder body 10.

[0041] The above description is only a preferred embodiment of the present invention, and it cannot be used to limit the scope of implementation of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the patent of the present invention. In addition, any embodiment of the present invention or the scope of the patent application does not need to achieve all the purposes, advantages or features disclosed by the present invention. In addition, the abstract and the title are only used to assist in searching patent documents and are not used to limit the scope of rights of the present invention. In addition, the terms "first", "second", etc. mentioned in this specification or the scope of the patent application are only used to name the components (element) or to distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of components.

Claims

1. A wireless charging rangefinder, characterized in that: include: At least one rangefinder body, comprising a rangefinder unit, a first control unit, a first power supply, a first coil, an objective lens unit, and an eyepiece unit, wherein the rangefinder unit, the first power supply, and the first coil are electrically connected to the first control unit, and an optical axis passes through the objective lens unit and the eyepiece unit; as well as The magnetic unit enables the first coil to correspond to the second coil of the charging device, thereby enabling the rangefinder body to be charged by the charging device.

2. The wireless charging rangefinder according to claim 1, wherein: The device further includes a charging device, which includes a second control unit, a second power source, and a second coil. The second power source and the second coil are electrically connected to the second control unit. The current of the second power source passes through the second coil, and the electromagnetic effect between the second coil and the first coil generates a current in the first coil, thereby charging the first power source.

3. The wireless charging rangefinder according to claim 2, wherein: The at least one rangefinder body further includes a first shell having a first combining wall, the first coil is disposed on the first combining wall, and the charging device further includes a second shell having a second combining wall, the second coil is disposed on the second combining wall.

4. The wireless charging rangefinder according to claim 3, wherein: The magnetic unit further includes a second magnetic component, the first magnetic component and the second magnetic component attract each other so that the second combining wall of the charging device is combined with the first combining wall of the rangefinder body, the first magnetic component is arranged on the first combining wall of the first shell of the rangefinder body or a side wall opposite to the first combining wall, and the second magnetic component is arranged on the second combining wall of the second shell of the charging device or a side wall opposite to the second combining wall, the first combining wall has the largest surface area of ​​the first shell, and the normal of the first combining wall is skewed or intersects with the optical axis.

5. The wireless charging rangefinder according to claim 3, wherein: The at least one rangefinder body further includes an anti-shake unit, which is combined with the distance measuring unit and electrically connected to the first control unit. When the rangefinder body shakes, the anti-shake unit keeps the distance measuring unit at a predetermined measuring position.

6. The wireless charging rangefinder according to claim 2, wherein: The charging device further includes a location information generating unit, which is electrically connected to the second control unit, and the location information generating unit receives satellite signals to generate location data; wherein the charging device further includes a charging device communication unit, which is electrically connected to the second control unit, and the charging device communication unit forms a signal connection with the electronic device, and the location data is transmitted to the electronic device via the charging device communication unit; wherein the charging device further includes a display unit, which is electrically connected to the second control unit.

7. The wireless charging rangefinder according to claim 2, wherein: The rangefinder body further includes a power detection unit, which is electrically connected to the first control unit. The power detection unit detects the power level of the first power source. When the power level of the first power source reaches a set value, the first control unit generates a control signal. The rangefinder body further includes a rangefinder communication unit, which is electrically connected to the first control unit. The charging device further includes a charging device communication unit, which is electrically connected to the second control unit. The charging device communication unit and the rangefinder communication unit form a signal connection. The control signal is transmitted to the second control unit via the rangefinder communication unit and the charging device communication unit, and the second control unit stops the second power source from supplying power to the second coil.

8. The wireless charging rangefinder according to claim 2, wherein: The charging device or the rangefinder body further includes a plurality of environmental sensors, which include a temperature sensor, a humidity sensor, and a wind direction sensor.

9. The wireless charging rangefinder according to claim 2, wherein: The charging device further includes a power management module and a charging interface, the charging interface is connected to the power management module, the power management module is electrically connected to the second controller, and the charging interface is connected to an external power source to charge the second power source through the power management module.

10. The wireless charging rangefinder according to claim 2, wherein: It further includes a plurality of rangefinder bodies, and a charging device is used to charge the plurality of rangefinder bodies.