Wireless charging mouse device, wireless charging mouse, lower shell of wireless charging mouse, and method for producing lower shell

A wireless charging mouse device, a wireless charging mouse, a lower shell of the wireless charging mouse, and a method for producing the lower shell are provided. The wireless charging mouse includes an upper shell, a lower shell, and an electronic module located between the upper shell and the lower shell. The lower shell includes an upper board, a lower board, and a wireless charging assembly located between the upper board and the lower board. A side surface of the upper board is fixed to a side surface of the lower board by gluing or melting. The upper board has a connection hole. The wireless charging assembly includes a circuit board and a wireless charging coil. A connection structure of the circuit board is exposed from the upper board by passing through the connection hole, so as to be electrically coupled to the electronic module.

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This application claims the benefit of priority to Taiwan Patent Application No. 110139175, filed on Oct. 22, 2021. The entire content of the above identified application is incorporated herein by reference.

FIELD OF THE DISCLOSURE

The present disclosure relates to a mouse, and more particularly to a wireless charging mouse device, a wireless charging mouse, a lower shell of the wireless charging mouse, and a method for producing the lower shell.

BACKGROUND OF THE DISCLOSURE

In a manufacturing process of a conventional wireless charging mouse, a coil circuit board of the conventional wireless charging mouse (i.e., a circuit board used to control a coil) is embedded in a lower shell by plastic injection, so as to prevent the coil circuit board from occupying an internal space of the conventional wireless charging mouse. However, since the coil circuit board cannot withstand high temperature and high pressure, the coil circuit board often deforms or cracks during a plastic injection process. Therefore, a production yield of the conventional wireless charging mouse is inadequate, which results in an increased production cost.

SUMMARY OF THE DISCLOSURE

In response to the above-referenced technical inadequacy, the present disclosure provides a wireless charging mouse device, a wireless charging mouse, a lower shell of the wireless charging mouse, and a method for producing the lower shell, so as to effectively overcome the problem of “a production cost of a conventional wireless charging mouse being too high due to inadequate production yield”.

In one aspect, the present disclosure provides a wireless charging mouse. The wireless charging mouse includes an upper shell, an electronic module, and a lower shell. The lower shell is detachably disposed on the upper shell, so that the lower shell and the upper shell jointly form an accommodating space. The electronic module is located in the accommodating space. The lower shell includes an upper board, a lower board, and a wireless charging assembly. The upper board and the lower board each have an installation region and a connection region that surrounds the installation region. A side surface of the upper board located in the connection region thereof is fixed to a side surface of the lower board located in the connection region thereof by gluing or melting, so that a portion of the upper board located in the installation region thereof and a portion of the lower board located in the installation region thereof jointly form an installation space. The upper board is configured to carry the electronic module, and has a connection hole in spatial communication with the installation space and the accommodating space. The wireless charging assembly is disposed in the installation space. The wireless charging assembly includes a circuit board and a wireless charging coil that is electrically coupled to the circuit board. A connection structure of the circuit board is exposed from the upper board by passing through the connection hole, so as to be electrically coupled to the electronic module.

In another aspect, the present disclosure provides a method for producing a lower shell of a wireless charging mouse for being applied a production line. The method includes implementing a first fixing step, an installation step, a cover step, and a second fixing step. The first fixing step includes: fixing a wireless charging coil on a circuit board, so that the wireless charging coil is electrically coupled to the circuit board. The wireless charging coil and the circuit board are jointly defined as a wireless charging assembly. The installation step includes: installing the wireless charging assembly on a lower board. The lower board has an installation region and a connection region that surrounds the installation region, and the wireless charging assembly is located in the installation region of the lower board. The cover step includes: covering the wireless charging assembly with an upper board, so that the wireless charging assembly is located between the upper board and the lower board. The upper board has an installation region and a connection region that surrounds the installation region. The installation region of the upper board corresponds in position to the installation region of the lower board, and the connection region of the upper board corresponds in position to the connection region of the lower board. The upper board has a connection hole corresponding in position to the circuit board. The second fixing step includes: fixing a portion of the upper board located in the connection region thereof and a portion of the lower board located in the connection region thereof by gluing or melting, so that a connection structure of the circuit board is exposed from the upper board by passing through the connection hole.

In yet another aspect, the present disclosure provides a lower shell of a wireless charging mouse produced by the above-mentioned method.

In still another aspect, the present disclosure provides a wireless charging mouse that includes an upper shell, an electronic module, and a lower shell. The lower shell is produced by the above-mentioned method.

In still yet another aspect, the present disclosure provides a wireless charging mouse device. The wireless charging mouse device includes a wireless charging mouse and a wireless charging mouse pad. The wireless charging mouse includes an upper shell, an electronic module, and a lower shell. The lower shell is detachably disposed on the upper shell, so that the lower shell and the upper shell jointly form an accommodating space. The electronic module is located in the accommodating space. The lower shell includes an upper board, a lower board, and a wireless charging assembly. The upper board and the lower board each have an installation region and a connection region that surrounds the installation region. A side surface of the upper board located in the connection region thereof is fixed to a side surface of the lower board located in the connection region thereof by gluing or melting, so that a portion of the upper board located in the installation region thereof and a portion of the lower board located in the installation region thereof jointly form an installation space. The upper board is configured to carry the electronic module, and has a connection hole in spatial communication with the installation space and the accommodating space. The wireless charging assembly is disposed in the installation space. The wireless charging assembly includes a circuit board and a wireless charging coil that is electrically coupled to the circuit board. A connection structure of the circuit board is exposed from the upper board by passing through the connection hole, so as to be electrically coupled to the electronic module. The wireless charging mouse pad is configured to be electromagnetically coupled to the wireless charging mouse, and the wireless charging mouse pad includes a resonance coil. The resonance coil is configured to be electromagnetically coupled to the wireless charging coil, so that the electronic module is configured to be supplied with power through electrical energy that is converted from electromagnetic energy received from the wireless charging coil.

Therefore, in the wireless charging mouse device, the wireless charging mouse, the lower shell of the wireless charging mouse, and the method for producing the lower shell provided by the present disclosure, by virtue of “the side surface of the upper board located in the connection region thereof being fixed to the side surface of the lower board located in the connection region thereof by gluing or melting, so that the portion of the upper board located in the installation region thereof and the portion of the lower board located in the installation region thereof jointly form the installation space” and “the wireless charging assembly being disposed in the installation space and being exposed from the upper board by passing through the connection hole, so as to be electrically coupled to the electronic module,” the lower shell is so configured as to allow the production yield to be effectively increased and the production cost to be effectively reduced.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

First Embodiment

Referring toFIG.1toFIG.7, a first embodiment of the present disclosure provides a wireless charging mouse device100. As shown inFIG.1toFIG.3, the wireless charging mouse device100includes a wireless charging mouse1and a wireless charging mouse pad2. The wireless charging mouse pad2can supply electrical energy to the wireless charging mouse1in a wireless manner (e.g., electromagnetic coupling).

It should be noted that the wireless charging mouse1and the wireless charging mouse pad2in the present embodiment are jointly defined as the wireless charging mouse device100, but the present disclosure is not limited thereto. For example, the wireless charging mouse1can be independently used (e.g., implemented, manufactured, or sold) or can be used in cooperation with other components. The following description describes the structure and connection relationship of each component of the wireless charging mouse device100.

As shown inFIG.2,FIG.3, andFIG.5, the wireless charging mouse1includes an upper shell11, a lower shell12detachably disposed on the upper shell11, and an electronic module13located between the upper shell11and the lower shell12. In addition, it should be noted that the wireless charging mouse1in the present embodiment also includes other components, such as a scroll wheel, a plurality of buttons, and others that are required for general operation of a mouse. Since these components are not the focus of the present disclosure, details thereof will not be described herein. Features and characteristics of the present embodiment will be described in more detail below.

Further, the lower shell12is detachably disposed on the upper shell11, and the lower shell12and the upper shell11can jointly form an accommodating space S1. The accommodating space S1can be used to accommodate the electronic module13. In a practical application, the electronic module13can be, for example, an optical track sensor, and the optical track sensor can be used to determine a moving direction and a moving distance of the wireless charging mouse1, so as to locate a cursor. In addition, the upper shell11and the lower shell12can be fixed by screws, buckles, etc. The upper shell11is substantially in an arched structure (e.g., a semi-elliptical shape), and the lower shell12is in a plate-like structure.

More specifically, as shown inFIG.5toFIG.7, the lower shell12includes an upper board121and a lower board122that are fixed to each other, and a wireless charging assembly123that is disposed between the upper board121and the lower board122. The upper board121and the lower board122each have an installation region A1and a connection region A2that surrounds the installation region A1. That is, the connection region A2surrounds a periphery of the installation region A1(as shown inFIG.9andFIG.10). A side surface of the upper board121located in the connection region A2thereof is fixed to a side surface of the lower board122located in the connection region A2thereof by gluing or melting, so that a portion of the upper board121located in the installation region A1thereof and a portion of the lower board122located in the installation region A1thereof jointly form an installation space S12for accommodating the wireless charging assembly123.

In a practical application, the upper board121and the lower board122are fixed to each other by ultrasonic melting or coating of adhesives in their respective connection regions A2. As shown inFIG.5toFIG.7, the lower board122has an accommodating groove G122in the installation region A1thereof. A depth of the accommodating groove G122is preferably greater than or equal to a thickness of the wireless charging assembly123, so that the wireless charging assembly123can be accommodated in the accommodating groove G122, and is just in contact with or is not in contact with the upper board121. In other words, when the upper board121and the lower board122are fixed to each other, the wireless charging assembly123can be clamped by the lower board122and the upper board121at the same time, and movement of the wireless charging assembly123is restricted. Alternatively, the wireless charging assembly123can be supported by the lower board122, and is capable of moving (slightly) in the accommodating groove G122.

Naturally, in certain embodiments of the present disclosure (not shown), the depth of the accommodating groove G122can also be less than the thickness of the wireless charging assembly123. That is, a top surface of the wireless charging assembly123in the accommodating groove G122is higher than a side surface of the lower board122facing the upper board121, and the wireless charging assembly123can slightly prop up the upper board121and the lower board122.

In addition, in a practical application where the upper board121and the lower board122are fixed to each other by gluing, the upper board121and the lower board122can also be coated with adhesives (or be arranged with adhesive strips) on side surfaces of their respective installation regions A1, so that the side surface of the upper board121located in the installation region A1thereof and the side surface of the lower board122located in the installation region A1thereof can be fixed two opposite sides of the wireless charging assembly123by gluing. Accordingly, the movement of the wireless charging assembly123can be restricted.

Preferably, as shown inFIG.7, a side wall of the accommodating groove G122is not in contact with an outer edge of the wireless charging assembly123, and a shortest distance D1is defined between the outer edge of the wireless charging assembly123and the side wall of the accommodating groove G122. The shortest distance D1is within a range from 0.1 mm to 0.2 mm, so as to prevent the wireless charging assembly123from being damaged due to the process of melting or gluing the upper board121and the lower board122(e.g., ultrasonic vibration or tape cutting).

It should be noted that the upper board121and the lower board122that are fixed by gluing or melting cannot be separated, so that the upper board121, the lower board122, and the wireless charging assembly123(i.e., the lower shell12) are integrally formed as a single one-piece structure. In addition, when the lower shell12is fixed onto the upper shell11, a side surface of the upper board121away from the lower board122is located in the accommodating space S1and can be used to carry the electronic module13.

As shown inFIG.5toFIG.7, the upper board121of the lower shell12has a connection hole K in spatial communication with the installation space S12and the accommodating space Si. That is, the connection hole K is located in the installation region A1of the upper board121. Accordingly, the connection hole K can allow the structure of the wireless charging assembly123to partially pass through, so as to establish an electrical coupling with the electronic module13(as shown inFIG.5).

In a practical application, an area occupied by the connection hole K on a connection side surface1211of the upper board121facing the electronic module13(not including holes for light from the optical track sensor to pass through) is less than or equal to 10×5 mm2(i.e., 50 mm2) In this way, the lower shell12is almost a closed structure, and thus has a better service life (e.g., preventing dust and liquid from affecting the wireless charging assembly123). The aforementioned “almost closed structure” means that an area of all holes that are in spatial communication with an inside of the lower shell12(i.e., the installation space S12) is less than 50 mm2.

As shown inFIG.4,FIG.6, andFIG.7, the wireless charging assembly123includes a circuit board1231and a wireless charging coil1232that is electrically coupled to the circuit board1231. The wireless charging coil1232can be electromagnetically coupled to the wireless charging mouse1, and the circuit board1231can be used to control parameters (e.g., an output current and an output voltage) of the wireless charging coil1232during an electromagnetic coupling.

In a practical application, an area of the circuit board1231is preferably greater than an area of the wireless charging coil1232, and is less than or equal to an area of a bottom portion of the accommodating groove G122of the lower board122. The wireless charging coil1232is a ring structure, and is arranged on the circuit board1231. A shortest distance D2is defined between an outer edge of the wireless charging coil1232and an outer edge of the circuit board1231(as shown inFIG.7), and the shortest distance D2is preferably within a range from 1 mm to 2 mm, so as to prevent the wireless charging coil1232from being damaged during the melting process of the upper board121and the lower board122(e.g., fracture).

In addition, in the present embodiment, the circuit board1231further has a connection structure L (e.g., pin). The connection structure L can be exposed from the upper board121by passing through the connection hole K, so as to be electrically coupled to the electronic module13. Accordingly, the electronic module13can be supplied with power through electrical energy that is converted from electromagnetic energy received from the wireless charging coil1232.

In a practical application, a region defined by orthogonally projecting the connection hole K onto the lower board122is preferably located in a region defined by orthogonally projecting the circuit board1231onto the lower board122. In other words, in a top view of the lower board122, a position of the connection hole K is on the circuit board1231, so that the connection structure L of the circuit board1231can directly pass through the connection hole K.

As shown inFIG.1andFIG.4, the wireless charging mouse pad2can be electromagnetically coupled to the wireless charging mouse1, so as to provide the electrical energy for the wireless charging mouse1. The wireless charging mouse pad2in the present embodiment includes a main body21, a resonance coil22disposed in the main body21, and a power supply module23that is electrically coupled to the resonance coil22.

The power supply module23can be electrically coupled to an external power source (e.g., utility power), so as to convert said power source into a voltage and a current required by each internal component of the wireless charging mouse device100. In practical use, according to actual requirements, the power supply module23can have circuits and components related to voltage transformation, rectification, filtering, etc. The resonance coil22can convert electrical energy provided by the power supply module23into electromagnetic energy, which is then transmitted to the wireless charging coil1232. The electronic module13can convert the electromagnetic energy into electrical energy through the wireless charging coil1232, so as to be supplied with power. In other words, the wireless charging coil1232in the present embodiment is a receiving resonance coil.

It should be noted that, since how the wireless charging mouse pad2converts the electrical energy into the electromagnetic energy and how the wireless charging mouse1converts the electromagnetic energy into the electrical energy are known to those skilled in the art and are not the focus of the present disclosure, details thereof will not be described herein.

In practice, the lower shell12of the wireless charging mouse1can be an independent component that allows for replacement or sale, so that power supply-related components of the wireless charging mouse1can be quickly repaired. For example, when the wireless charging assembly123is burnt out, the lower board122is damaged, or the wireless charging assembly123is exposed, a user can make repairs by replacing the lower shell12. In other words, the lower shell12can be independently used (e.g., implemented, manufactured, or sold) or can be used in cooperation with other components.

Second Embodiment

Referring toFIG.8toFIG.11, a second embodiment of the present disclosure provides a method for producing a lower shell of a wireless charging mouse. That is, the lower shell12of the first embodiment is produced by said method. Therefore, reference can be made to the descriptions and drawings (i.e.,FIG.1toFIG.7) of the first embodiment in due course. As shown inFIG.8, the method can be applied to a production line (e.g., a production line of the wireless charging mouse), and the method includes step S101to step S107. However, in a practical application, any one of the above steps can be omitted or replaced by a designer.

A first fixing step S101is implemented, which includes: fixing a wireless charging coil1232on a circuit board1231, so that the wireless charging coil1232is electrically coupled to the circuit board1231(as shown inFIG.9). The wireless charging coil1232and the circuit board1231are jointly defined as a wireless charging assembly123, and the wireless charging coil1232is located in a region of the circuit board1231.

In other words, an area of the circuit board1231is larger than an area of the wireless charging coil1232, and a shortest distance D2is defined between an outer edge of the wireless charging coil1232and an outer edge of the circuit board1231is preferably within a range from 1 mm to 2 mm (as shown inFIG.7).

An installation step S103is implemented, which includes: installing the wireless charging assembly123on a lower board122(as shown inFIG.9). The lower board122has an installation region A1and a connection region A2that surrounds the installation region A1, and the wireless charging assembly123is located in the installation region A1of the lower board122.

In a practical application, as shown inFIG.9andFIG.11, the lower board122has an accommodating groove G122in the installation region A1thereof, and the accommodating groove G122can be used to accommodate the wireless charging assembly123. Preferably, a side wall of the accommodating groove G122is not in contact with an outer edge of the wireless charging assembly123, so that the outer edge of the wireless charging assembly123and the side wall of the accommodating groove G122have a shortest distance D1there-between (as shown inFIG.7). The shortest distance D1is within a range from 0.1 mm to 0.2 mm, but the present disclosure is not limited thereto.

For example, in another embodiment of the present disclosure (not shown), a volume of the accommodating groove G122can also be substantially equal to a volume of the wireless charging assembly123, so that the wireless charging assembly123fills a space of the accommodating groove G122. In other words, the side wall of the accommodating groove G122is in contact with the outer edge of the wireless charging assembly123.

A cover step S105is implemented, which includes: covering the wireless charging assembly123with an upper board121, so that the wireless charging assembly123is located between the upper board121and the lower board122(as shown inFIG.11).

In detail, as shown inFIG.9andFIG.10, the upper board121has an installation region A1and a connection region A2that surrounds the installation region A1. The installation region A1and the connection region A2of the upper board121substantially correspond in area to the installation region A1and the connection region A2of the lower board122.

When the upper board121is disposed onto the lower board122and covers the wireless charging assembly123, the installation region A1of the upper board121corresponds in position to the installation region A1of the lower board122, and the connection region A2of the upper board121corresponds in position to the connection region A2of the lower board122.

In addition, as shown inFIG.11, the upper board121has a connection hole K corresponding in position to the circuit board1231. That is, the connection hole K is located in the installation region A1of the upper board121.

A second fixing step S107is implemented, which includes: fixing a portion of the upper board121located in the connection region A2thereof and a portion of the lower board122located in the connection region A2thereof by gluing or melting, so that a connection structure L of the circuit board1231is exposed from the upper board121by passing through the connection hole K and is electrically coupled to an electronic module (e.g., an optical track sensor).

More specifically, as shown inFIG.10andFIG.11, in a practical application where ultrasonic melting is performed, a side surface of one of the upper board121and the lower board122facing another one of the upper board121and the lower board122has a protruding portion M (multiple ones of the protruding portion M are illustrated in the drawings). The protruding portion M is preferably located on the upper board121or the lower board122, and is adjacent to an outer edge of the wireless charging assembly123. The protruding portion M can be melted by ultrasonic vibration, so that the upper board121and the lower board122are fixed to each other. Two blocks on both sides of the upper board121shown inFIG.11are each an ultrasonic melting mechanism200.

Moreover, the present embodiment is exemplified by the lower board122having the protruding portion M (that is, the side surface of the lower board122facing the upper board121has the protruding portion M), but the present disclosure is not limited thereto. For example, in another embodiment of the present disclosure (not shown), the upper board121can also have the protruding portion M.

In more detail, the protruding portion M in the present embodiment is a tapered structure protruding from the lower board122toward the upper board121, a height of the protruding portion M is within a range from 0.35 mm to 0.45 mm, and a width of the protruding portion M is within a range from 0.35 mm to 0.45 mm Therefore, when the protruding portion M is melted by the ultrasonic vibration, the lower board122and the upper plate board121have ideal manufacturing reliability.

It should be noted that, in the present embodiment, the protruding portions M shown in the drawings are each an independent bump (i.e., non-continuous), but the present disclosure is not limited thereto. For example, in another embodiment of the present disclosure (as shown inFIG.12andFIG.13), the lower shell12can have one protruding portion M that is an annular rib, or numerous protruding portions M that are elongated ribs. A width of a cross section (or a bottom portion) of the annular rib or each of the elongated ribs is within a range from 0.35 mm to 0.45 mm, and a height of the cross section (or the bottom portion) of the annular rib or each of the elongated ribs is within a range from 0.35 mm to 0.45 mm.

In a practical application where gluing is performed, a portion of the lower board122in the connection region A2thereof and a portion of the upper board121in the connection region A2thereof can be fixed to each other by having a glue liquid (e.g., an adhesive agent) or a glue element (e.g., a double-sided tape) disposed there-between. Naturally, in situations where gluing is performed, a portion of the lower board122in the installation region A1thereof and a portion of the upper board121in the installation region A1thereof can also be fixed to each other by having the above-mentioned glue liquid or glue element disposed there-between, so that the two opposite sides of the wireless charging assembly123can be fixed by the lower plate122and the upper plate121. In addition, in a practical application, the protruding portion M can also be omitted (as shown inFIG.7).

Moreover, in certain embodiments of the present disclosure (not shown), the accommodating groove G122can also be omitted from the lower board122. When the lower board122and the upper board121are fixed to each other, the lower board122and the upper board121can clamp the wireless charging assembly123, and the wireless charging assembly123can (slightly) prop up the lower board122and the upper board121.

It should be noted that, in an exemplary embodiment, a thickness of each of the upper board121and the lower board122is preferably within a range from 0.8 mm to 1.6 mm, which allows the upper board121and the lower board122to have an ideal structural strength. In addition, whether the circuit board1231adopts a fiberglass board (FR-4) or a flexible printed circuit board (FPC), a final product (i.e., the lower shell12) is configured to not occupy an internal space of the wireless charging mouse1.

In more detail, when the circuit board1231is the fiberglass board, a thickness of the lower shell12is substantially within a range from 1.8 mm to 2.6 mm. Moreover, when the circuit board1231is the flexible printed circuit board, a thickness of the lower shell12is substantially within a range from 1.8 mm to 2.2 mm. It can be seen from the foregoing descriptions that the thickness of the lower shell12is less than or equal to 2.6 mm, which allows a space jointly formed by the lower shell12and the upper shell11(i.e., the accommodating space S1in the first embodiment) to be effectively used.

It should be noted that, although the flexible printed circuit board has lighter and thinner structural characteristics compared to the fiberglass board, since the lower shell is conventionally produced by a plastic injection process, the circuit board in the lower shell of the wireless charging mouse is unable to adopt the flexible printed circuit board. This is because the flexible printed circuit board cannot be used in a high temperature and high pressure environment during the plastic injection process. In other words, the method for producing the lower shell provided in the present disclosure solves the problem of not being able to use the flexible printed circuit board in a conventional approach. Further, in the method of the present disclosure, the lower shell can have a lighter and thinner structure, especially for the lower shell that is configured to use the flexible printed circuit board.

[Beneficial Effects of the Embodiments]

In conclusion, in the wireless charging mouse device, the wireless charging mouse, the lower shell of the wireless charging mouse, and the method for producing the lower shell provided by the present disclosure, by virtue of “the side surface of the upper board located in the connection region thereof being fixed to the side surface of the lower board located in the connection region thereof by gluing or melting, so that the portion of the upper board located in the installation region thereof and the portion of the lower board located in the installation region thereof jointly form the installation space” and “the wireless charging assembly being disposed in the installation space and being exposed from the upper board by passing through the connection hole, so as to be electrically coupled to the electronic module,” the lower shell is so configured as to allow the production yield to be effectively increased and the production cost to be effectively reduced.