JP7192956B2 - Electronics - Google Patents

Description

The present invention relates to an electronic device with a wireless function.

For example, Patent Literature 1 discloses a mobile terminal housing, a plate-shaped antenna element, and an antenna storage section that houses the antenna element and extends slidably toward the outside of the mobile terminal housing with respect to the mobile terminal housing. Disclosed is an antenna device for a mobile terminal having

Japanese Patent Application Laid-Open No. 2008-011270

The mobile terminal antenna device disclosed in Patent Document 1 has a dedicated component that functions as an antenna.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic device with a wireless function in which a non-dedicated part functions as an antenna.

One embodiment of the present invention is a switch unit that is slidable between an ON position and an OFF position and that also functions as an antenna for wireless communication; a power supply unit for supplying power; and an operated unit operated by an operating portion of the switch unit, wherein the power supply unit starts supplying power when the switch unit moves from the OFF position to the ON position. and an operated portion, wherein the power supply member is disposed at a location facing the operated portion via the switch portion located at the ON position .

According to the present invention, it is possible to provide an electronic device with a wireless function in which a non-dedicated component functions as an antenna.

1 is a plan view showing an example of an electronic device with a wireless function according to one embodiment of the present invention; FIG. 1B is a front view of the electronic device shown in FIG. 1A; FIG. It is a block diagram which shows an example of a structure of an electronic device. FIG. 4 is a diagram showing the positional relationship between members arranged inside the housing section when the electronic device is in an OFF state; 3B is an enlarged view showing the periphery of the switch section shown in FIG. 3A; FIG. FIG. 3 is an enlarged view showing the periphery of the switch section in the ON state of the electronic device; 3D is a diagram showing the periphery of the switch section shown in FIG. 3C; FIG. 4 is a plan view showing an example of the configuration of a switch section; FIG. 4B is a front view showing the switch unit shown in FIG. 4A; FIG. FIG. 5 is a cross-sectional view showing another example of the configuration of the switch section; FIG. 11 is a cross-sectional view of the periphery of the main body, showing still another example of the configuration of the switch section; 4E is a cross-sectional view taken along line 4E-4E shown in FIG. 4D; FIG. 4 is a flow chart showing an example of radio sensitivity detection in radio communication;

An embodiment of the present invention will be described with reference to the drawings. Note that some of the members are omitted for clarity in some of the drawings.

The electronic device 10 in this embodiment is, for example, a small wearable device having a wireless function. The wearable device may be a wearable sensor that a person can wear around a belt of clothing with a clip (not shown).

FIG. 1A is a plan view showing an example of an electronic device 10 with a wireless function according to an embodiment of the invention. FIG. 1B is a front view showing electronic device 10 shown in FIG. 1A. The electronic device 10 has a housing section 20 . The housing part 20 has a lower case 21 and an upper case 23 covering the lower case 21 . The upper case 23 has a recess 23a in which a switch section 70, which will be described later, is arranged. The recessed portion 23a is recessed from the outer peripheral surface of the housing portion 20 toward the inside thereof. A bottom portion 23d of the concave portion 23a is provided with a through hole 23b passing through the thick portion 24 of the housing portion 20, and the inside and outside of the housing portion 20 are communicated through the through hole 23b (see FIG. 3B). Further, the housing part 20 includes an outer case 20a made of resin and an inner case 20b made of metal (see FIGS. 3B and 3C).

An ON presentation section 130a is provided in the concave section 23a of the housing section 20 (see FIGS. 3C and 3D). The ON presentation unit 130a is provided to present to the user that the electronic device 10 is in the ON state, that is, that the power supply unit 50, which will be described later, is ON. ” character. The ON presentation unit 130a is not limited to characters, and may be any presentation that can identify the state of the electronic device 10, such as an illustration or color.

Next, the configuration of the electronic device 10 housed in the housing section 20 will be described.
FIG. 2 is a block diagram showing an example of the configuration of the electronic device 10. As shown in FIG. The electronic device 10 has a sensor section 30 , a storage section 40 , a power supply section 50 , a radio section 60 , an operation section 75 and a control section 80 . The electronic device 10 also has a circuit board 90 on which a switch 51 (described later) of the power supply section 50 is mounted, and a holding member 110 electrically connected to the circuit board 90 by a soldering section 100 (see FIG. 3A).

The sensor unit 30 has, for example, an acceleration sensor 31 that detects the acceleration of the electronic device 10, an angular velocity sensor 33 that detects the angular velocity of the electronic device 10, and a geomagnetic sensor 35 that detects geomagnetism. Based on the data detected by these sensors 31, 33, and 35, the sensor unit 30 acquires, for example, the posture of the electronic device 10 as information on the movement of the person wearing it. The sensor unit 30 may have other sensors such as a temperature sensor, an atmospheric pressure sensor, a GPS sensor, etc., and can acquire various sensor information.

The storage unit 40 may be a non-volatile memory such as a flash memory, and stores various programs and data necessary for the operation of the control unit 80 .

The power supply unit 50 has a switch 51, a rechargeable battery 53, and a power supply circuit (not shown). The switch 51 is, for example, a push-type switch that is turned on or off by the switch unit 70 to start or stop power supply. The rechargeable battery 53 can be charged from the outside via, for example, a USB cable. A primary battery may be used instead of the rechargeable battery 53 . The power supply circuit is electrically connected to the circuit board 90 and supplies power from the rechargeable battery 53 to each part of the electronic device 10 . When the switch 51 is turned on, the power supply section 50 supplies power to each section of the electronic device 10 via the circuit board 90 .

The switch unit 70 is a switch for power ON/OFF switching operation. The power ON/OFF switching operation includes an operation for turning on the power supply unit 50 to start the electronic device 10 and an operation for turning off the power supply unit 50 to stop the electronic device 10 .

The wireless unit 60 includes a communication interface for information/data transmitted and received between the electronic device 10 and an external device (not shown). The wireless unit 60 uses an antenna 61, for example, wireless LAN technology according to the IEEE802.11a/11b/11g/11n standard, Bluetooth (registered trademark), short-range wireless communication technology according to Bluetooth LE (Low Energy), etc. Performs data communication with external devices such as smartphones and personal computers (PCs). Data communication may be performed with the server device via a communication network such as the Internet.

Note that the radio section 60 is not limited to the communication mode described above, and may only receive information/data or only transmit information/data.

The operation portion 75 includes the switch portion 70 . A user inputs an operation to the operation unit 75 to execute various functions of the electronic device 10 .

The control unit 80 is, for example, a CPU (Central Processing Unit). The control unit 80 reads the operation programs and various data stored in the storage unit 40 and sequentially executes the operation programs, thereby controlling the operation of each unit of the electronic device 10 .

The configuration of the switch section 70 will be described with reference to FIGS. 4A and 4B.
The switch portion 70 has a main body portion 71 and a shaft member 73 connected to the main body portion 71 . The body portion 71 and the shaft member 73 extend in the direction of the longitudinal axis C, which is the direction in which the switch portion 70 slides. The body portion 71 is thicker than the shaft member 73 and provided at the base end portion 72 a of the shaft member 73 . The outer contour shape of the main body portion 71 is adapted to the outer contour shape of the housing portion 20 , that is, the outer frame when the main body portion 71 is arranged in the housing portion 20 .

The body portion 71 has, on its upper surface, a curved surface portion 71a and a flat portion 71b on the shaft member 73 side of the curved surface portion 71a. The curved surface portion 71a has a gently curved surface as shown in FIG. 4B. When the switch section 70 is slid, the pads of the user's fingers, for example, are placed on the curved surface section 71a. The flat portion 71b is formed of a flat surface and is positioned lower than the highest position of the curved surface of the curved surface portion 71a with respect to the height direction perpendicular to the flat surface. A wall portion 71c serving as a step is formed between the curved surface portion 71a and the flat portion 71b.

The flat portion 71b is provided with an OFF presentation portion 130b. The OFF presentation unit 130b is provided to present to the user that the electronic device 10 is in the OFF state, that is, that the electronic device 10 is OFF, and includes, for example, "OFF". As with the ON presentation unit 130a, the OFF presentation unit 130b may also provide a presentation that allows the state of the electronic device 10 to be identified.

The shaft member 73 has an elongated columnar shape extending in the direction of the longitudinal axis C and extends from the body portion 71 . The shaft member 73 has a base end portion 72a connected to the body portion 71 and a tip end portion 72b on the opposite side.

The shaft member 73 has a sealing groove 73a, a fall prevention groove 73b, a first groove 73c, and a second groove 73d in order from the base end portion 72a of the shaft member 73 toward the tip. These grooves 73 a , 73 b , 73 c , 73 d are arranged at predetermined intervals in the direction of the longitudinal axis C of the shaft member 73 . The grooves 73a and 73b are circumferential grooves formed over the entire circumference of the outer peripheral surface of the shaft member 73, and the grooves 73c and 73d are grooves constricted in the radial direction of the shaft member 73. As shown in FIG.

As shown in FIGS. 3A to 3C, a ring-shaped sealing member 123a is fitted into the sealing groove 73a. The sealing member 123a is a member that seals between the outer peripheral surface of the shaft member 73 and the thick portion 24 of the housing portion 20 in the through hole 23b through which the shaft member 73 is inserted. The sealing member 123a is, for example, a resin component such as rubber packing.

A falling-off preventing member 123b is fitted in the falling-off preventing groove 73b. The falling-off prevention member 123b is, for example, a ring member made of metal.

A tip portion 72 b of the shaft member 73 serves as a contact point with the rod 51 a of the switch 51 of the power supply section 50 . As shown in FIG. 4A, the distal end portion 72b has an obliquely tapered shape.

For example, the body portion 71 is made of a resin material, and the shaft member 73 is made of a metal material. The shaft member 73 is, for example, insert-molded into the body portion 71 so as to be integrated with the body portion 71 . Note that the insert molding is only an example and is not limited to this.

In this embodiment, the switch section 70, particularly the shaft member 73, functions as an antenna 61 for the above-described wireless communication with an external device. That is, in the electronic device 10, the switch unit 70 has both a power ON/OFF switching function and an antenna function. The electronic device 10 does not have an antenna as a dedicated component.

As shown in FIGS. 3A to 3C, the holding member 110 is made of a spring material such as a plate spring or a coil spring, and biases the shaft member 73 . The holding member 110 has electrical conductivity. The shaft member 73 can be electrically connected to the circuit board 90 via the holding member 110 and the soldering portion 100 . An engaging portion 111 that can be engaged with the groove 73c or the groove 73d of the shaft member 73 is formed on the non-soldered side of the holding member 110 . The engaging portion 111 and the grooves 73c and 73d have complementary shapes.

Next, states of the switch section 70 in the housing section 20 of the electronic device 10 and wireless communication states corresponding to the states will be described with reference to FIGS. 1A and 3A to 3D.

As shown in FIG. 1A, when the electronic device 10 is in the OFF state, the OFF presentation portion 130b provided on the flat portion 71b of the body portion 71 of the switch portion 70 is exposed to the outside of the electronic device 10. .

3A and 3B show the relationship between the switch section 70, the switch 51, and the holding member 110 in the OFF state of the electronic device 10. FIG. The shaft member 73 of the switch section 70 is inserted through the through hole 23 b of the housing section 20 , and the distal end portion of the shaft member 73 is housed inside the housing section 20 .

As shown in FIG. 3B, in the OFF state, a gap portion 23c is formed between the bottom portion 23d of the recess portion 23a and the main body portion 71 so that the switch portion 70 can be slid to turn on the power supply portion 50. It is

In the OFF state, the second groove 73 d of the shaft member 73 of the switch section 70 is engaged with the engaging section 111 of the holding member 110 . In other words, the engaging portion 111 of the holding member 110 is caught in the second groove 73d to keep the rod 51a of the switch 51 of the power supply section 50 and the distal end portion 72b of the shaft member 73 of the switch section 70 from contacting each other. ing. In this state, the shaft member 73 is in the second position out of contact with the switch 51, and the switch 51 is OFF at this time. That is, power is not supplied from the power supply unit 50 to each unit of the electronic device 10 . The wireless communication function of the wireless unit 60 is also turned off.

In the OFF state, the ring-shaped sealing member 123a fitted in the sealing groove 73a is positioned between the outer peripheral surface of the shaft member 73 and the housing portion 20 at the through hole 23b through which the shaft member 73 is inserted in order to maintain watertightness. is sealed with the thick portion 24 of the . In addition, the falling-off preventing member 123b fitted in the falling-off preventing groove 73b is hooked on the edge of the through-hole 23b on the inner peripheral surface side of the housing part 20 in order to prevent the switch part 70 from falling off from the housing part 20. .

3C and 3D show the relationship between the switch section 70, the switch 51, and the holding member 110 when the power supply section 50 is in the ON state.

In the ON state, the switch portion 70 is slid toward the distal end of the shaft member 73 by a gap portion 23c between the bottom portion 23d of the recess portion 23a and the main body portion 71. The ON presentation unit 130a is exposed to the outside. The OFF presentation portion 130b provided on the flat portion 71b of the main body portion 71 of the switch portion 70 is not exposed to the outside due to the sliding.

In the ON state, the first groove 73c of the shaft member 73 of the switch portion 70 is engaged with the engaging portion 111 of the holding member 110. As shown in FIG. That is, the engaging portion 111 of the holding member 110 is caught in the first groove 73c, so that the rod 51a of the switch 51 of the power supply section 50 and the distal end portion 72b of the shaft member 73 of the switch section 70 come into contact with each other, and the rod 51a is disengaged. Holds the pressed state. In this state, the shaft member 73 is in the first position in contact with the rod 51 a of the switch 51 , that is, power is supplied from the power supply section 50 to each section of the electronic device 10 . The wireless communication function by the wireless unit 60 is also ON.

Even in the ON state, the ring-shaped sealing member 123a fitted in the sealing groove 73a is positioned between the outer peripheral surface of the shaft member 73 and the housing portion 20 at the through hole 23c through which the shaft member 73 is inserted in order to maintain watertightness. is sealed with the thick portion 24 of the .

When the housing unit 20 is viewed from the direction perpendicular to the direction in which the switch unit 70 slides, that is, when viewed from the front to the back of the paper in FIGS. 3A to 3C, the ON even in the OFF state Even in this state, the switch section 70 is always arranged within the projection plane of the housing section 20 . That is, the switch section 70 does not protrude outward from the outer frame of the housing section 20 . In the electronic device 10 , the antenna 61 does not protrude outside the housing section 20 .

The operation when the electronic device 10 is operated from the OFF state to the ON state will be described below.

When turning the electronic device 10 from the OFF state to the ON state, for example, the user places the pad of a finger on the curved surface portion 71a of the body portion 71 of the switch portion 70 and moves it toward the electronic device 10 (in order). direction). As a result, the switch section 70 is slid. By this sliding operation, the switch section 70 slides along the direction of the central axis C in the concave section 23 a and is pushed toward the inside of the housing section 20 . At this time, the body portion 71 contacts the bottom portion 23d of the concave portion 23a. The abutment prevents the body portion 71 of the switch portion 70 from being inserted into the housing portion 20 .

Simultaneously with the abutment, the tip portion 72b of the shaft member 73 comes into contact with the switch 51 to turn the switch 51 ON. As a result, power is supplied from the power supply unit 50 to each unit of the electronic device 10 via the circuit board 90 . Electric power is supplied to the shaft member 73 through the soldering portion 100 and the holding member 110 as a power supply point. That is, since power is also supplied to the antenna 61 , the wireless communication function of the wireless unit 60 is also ON, and wireless signals can be transmitted and received to and from an external device through the shaft member 73 functioning as the antenna 61 .

Thus, the switch unit 70 switches the state of the power supply unit 50 of the electronic device 10 when the electronic device 10 is operated from the OFF state to the ON state, and functions as an antenna for transmitting and receiving wireless signals.

Due to the sliding movement of the switch portion 70, the engaging portion 111 of the holding member 110 slides from the outer peripheral surface of the shaft member 73 and shifts from the second groove 73d to the first groove 73c. Simultaneously with the abutment, the engaging portion 111 of the holding member 110 is caught in the first groove 73c, and the power supply portion 50 is kept in the ON state. The user recognizes that the power supply unit 50 has been turned on by obtaining a click feeling generated when the holding member 110 is caught in the first groove 73c.

Further, by sliding the switch section 70, the OFF presentation section 130b is covered with the housing section 20 and is not exposed to the outside. Instead, the ON presentation section 130a is exposed to the outside to present that the power supply section 50 is ON.

Next, the operation when the electronic device 10 is operated from the ON state to the OFF state will be described.

When turning the electronic device 10 from the ON state to the OFF state, for example, the user places the pad of the finger on the curved surface portion 71a of the body portion 71 of the switch portion 70 and moves it away from the electronic device 10 (reverse direction). direction). As a result, the switch section 70 is pulled and slid with respect to the housing section 20 . At this time, the falling-off prevention member 123b is caught by the edge of the through-hole 23b, and this catch prevents the switch section 70 from falling out of the housing section 20. As shown in FIG. Simultaneously with the sliding movement, the pressure of the tip portion 72b of the shaft member 73 against the power supply section 50 is released, and the power supply section 50 is turned off. As a result, power supply is stopped, and radio signals are no longer transmitted and received from the radio unit 60 to the external device through the shaft member 73 functioning as the antenna 61 .

As the switch portion 70 slides in the opposite direction, the engaging portion 111 of the holding member 110 slides from the outer peripheral surface of the shaft member 73 and shifts from the first groove 73c to the second groove 73d. At the same time when the drop-off prevention member 123b is caught, the engaging portion 111 of the holding member 110 is caught by the second groove 73d, and the power source portion 50 is held in the OFF state. The user recognizes that the power supply unit 50 has been turned off by obtaining a click feeling generated when the holding member 110 is caught in the second groove 73d.

Further, by sliding the switch section 70, the ON presentation section 130a is covered with the body section 71 and is not exposed. Instead, the OFF presentation section 130b is exposed to the outside to present that the power supply section 50 is OFF.

The switch portion 70 functioning as the antenna 61 does not protrude outward from the outer frame of the housing portion 20 before, during, or after the switching operation. Further, the sealing member 123a always seals between the outer peripheral surface of the shaft member 73 and the thick portion 24 of the housing portion 20 in the through hole 23b through which the shaft member 73 is inserted.

Thus, the switch section 70 functions as a functional member having a function of switching the power supply of the electronic device 10, and further has a function of an antenna. In other words, the switch section 70 has a power switching function for turning ON/OFF the power supply section 50 and an antenna function for wireless communication. The switch unit 70 has both a power switching function and an antenna function.

As described above, in the present embodiment, the electronic device 10 with a wireless function that includes the wireless unit 60 is provided with the switch unit 70 that can be slid to switch the state of the electronic device 10. An electronic device 10 is provided in which 70 functions as an antenna 61 for wireless communication by radio section 60 . Since the switch unit 70 has both a switching function and an antenna function, there is no need for a dedicated component having an antenna function. Therefore, the number of parts of the electronic device 10 can be reduced. Moreover, the volume occupied by the antenna in the electronic device 10 can be reduced, and the electronic device 10 can be made smaller and lighter.

The switch section 70 is arranged within the outer frame of the housing section 20 of the electronic device 10 . Moreover, the switch part 70 does not expand and contract but slides, and is always arranged within the outer frame of the housing part 20 even when it slides. In other words, the switch section 70 does not protrude outside the outer peripheral surface of the housing section 20 regardless of whether the power supply section 50 is in the ON state or in the OFF state. Therefore, the antenna does not become an obstacle both when the electronic device 10 is not in use and when it is in use. In addition, since there is no protrusion (protrusion), the appearance of the electronic device 10 is also excellent in design.

In addition, since the sealing member 123a prevents liquid from entering the electronic device 10 from the outside of the electronic device 10, the waterproofness of the electronic device 10 can be ensured.

Further, even if the switch portion 70 is pulled toward the housing portion 20 as an OFF operation, the falling-off prevention member 123b is caught by the edge of the through hole 23b, thereby preventing the switch portion 70 from falling off from the housing portion 20. FIG.

Insert molding, press-fitting, or bonding is performed to integrate the main body portion 71 made of resin and the shaft member 73 made of metal with the main body portion 71 . Thereby, the switch part 70 can be manufactured easily. Since the shaft member 73 is made of metal, the entire length of the shaft member 73 can also be used as an antenna. A base end portion 72 a of the shaft member 73 that is made of metal and functions as the antenna 61 is arranged inside the main body portion 71 that is exposed to the outside of the housing portion 20 . Therefore, stable receiving sensitivity can be obtained.

The ON presentation section 130a and the OFF presentation section 130b allow the user to visually recognize whether the power supply section 50 is ON or OFF. Also, the switching of presentation by the ON presentation unit 130a and the OFF presentation unit 130b can be performed in conjunction with the switching operation by slide movement.

The user can grasp the completion of the switching operation from the feeling of clicking generated when the holding member 110 is caught in the first groove 73c or the second groove 73d during the power ON/OFF switching operation.

The holding member 110 supplies the power supplied from the power supply unit 50 to the holding member 110 to the shaft member 73 when the power supply unit 50 is in the ON state. The radio section 60 wirelessly communicates via the shaft member 73 functioning as the antenna 61 . Therefore, the holding member 110 can also be used as a power supply point, and the number of parts of the electronic device 10 can be reduced.

Note that the body portion 71 and the shaft member 73 may be formed of a common resin material by integral molding. In this case, as shown in FIG. 4C, the shaft member 73 is subjected to metal plating, vapor deposition, sputtering, printing, or the like. Alternatively, as shown in FIGS. 4D and 4E, of the resin-made main body 71 and shaft member 73, only the functional portion 76 that functions as an antenna is plated, vapor-deposited, sputtered, or printed with metal. you can The functional portion 76 is preferably, for example, an exposed portion of the switch portion 70 that is exposed to the outside of the housing portion 20 . Exposed portions include, for example, outer peripheral surfaces such as the front surface, back surface, and side surfaces of the main body portion 71 . The functional portion 76 may be arranged inside the body portion 71, for example. Although not shown, the functional portion 76 is arranged on the outer peripheral surface of the shaft member 73 and electrically connected to a conductive portion such as a metal film that is electrically connected to the holding member 110 . The functional portion 76 is electrically connected to the wireless portion 60 via the conductive portion and the holding member 110 and functions as an antenna when the electronic device 10 is in the ON state.

If the body portion 71 and the shaft member 73 are made of a common resin material, and the portion that functions as an antenna in the switch portion 70 is plated, vapor-deposited, sputtered, or printed with metal, the switch portion 70 can be quickly and easily constructed. can be manufactured to

Next, acquisition of stable reception sensitivity in wireless communication will be described.
One example of obtaining stable reception sensitivity is noise countermeasures. As a countermeasure against noise, it is conceivable that various circuits are always housed inside a metal housing (for example, the inner case 20b) having electrical shielding properties. However, the housing of the antenna in the housing may lead to a significant drop in reception sensitivity. Therefore, in order to ensure a realistic reception sensitivity for use of wireless communication, it is necessary to extend the antenna, in this embodiment, the switch section 70, to the outside of the housing section each time the device is used.

However, in the present embodiment, as shown in FIGS. 3C and 3D, the base end portion 72a of the shaft member 73 is arranged inside the main body portion 71 exposed to the outside of the housing portion 20 . In other words, the shaft member 73 protrudes from the inner case 20b inside the housing portion 20 in the sliding movement direction. When the power supply unit 50 is turned on and wireless communication is performed, the wireless signal is transmitted from the proximal end of the shaft member 73 functioning as the antenna 61 arranged inside the main body unit 71 exposed to the outside of the housing unit 20. The data is transmitted/received from the unit 72a to/from the external device. Therefore, it is not affected by the shielding characteristics of the inner case 20b of the housing part 20, and it is possible to eliminate the need to draw out the antenna, that is, the switch part 70, and obtain stable reception sensitivity. Further, the tip side portion of the shaft member 73 excluding the base end portion 72 a is arranged inside the housing portion 20 . Therefore, desired noise countermeasures are achieved.

Next, continuation or temporary suspension of wireless communication will be described.
During wireless communication, the user may unintentionally cover the switch unit 70 with his or her hand. Alternatively, an obstacle (for example, a building) to wireless communication may be interposed between the electronic device 10 and the external device. Under such circumstances, radio sensitivity in radio communication is temporarily lowered, radio communication becomes difficult to establish, power is wasted, and battery life may be shortened.

This countermeasure will be described below with reference to FIG. FIG. 5 is a diagram illustrating an example of a wireless sensitivity determination flow.

Under the condition that the power supply unit 50 is ON, the wireless unit 60 detects wireless sensitivity in wireless communication (step S101). The control unit 80 determines whether or not the radio sensitivity detected by the radio unit 60 is greater than or equal to the threshold (step S102). If it is determined that the wireless sensitivity is less than the threshold (No), wireless communication is suspended (step S103). On the other hand, if it is determined that the wireless sensitivity is equal to or higher than the threshold (Yes), wireless communication is continued or started (step S104). After step S103 or step S104, the process returns to step S101.

The above processing is repeatedly executed while the power supply unit 50 is ON. Determination of radio sensitivity may be performed all the time, or may be performed at predetermined time intervals.

In this manner, the control unit 80 can switch between continuation of wireless communication and suspension of wireless communication based on the determination result of wireless sensitivity. As a result, wireless communication is performed only when the wireless sensitivity is good, and wasteful power consumption during wireless communication can be suppressed. Therefore, the life of the power supply unit 50 can be extended.

In the above description, the shaft member 73 has been described as being a straight shaft. good.

Moreover, the structure of the switch part 70 can take the structure of a slide switch, a push switch, a seesaw switch, etc. FIG.

Further, although the switch unit 70 is an operation input switch for the user to switch the power of the electronic device 10 ON/OFF, the operation for switching the operation of the electronic device 10 is not limited to this, and may be various switching operations. It's okay. For example, the operation may be an operation to put the radio unit 60 into a limited state in order to limit the radio speed, and an operation to put it into an unrestricted state in which the radio speed is not limited.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the scope of the invention. Further, each embodiment may be implemented in combination as appropriate, in which case the combined effect can be obtained. Furthermore, various inventions are included in the above embodiments, and various inventions can be extracted by combinations selected from a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiments, if the problem can be solved and effects can be obtained, the configuration with the constituent elements deleted can be extracted as an invention.

The invention described in the original claims of the present application is appended below.
[1] An electronic device with a wireless function that includes a wireless unit, and includes a switch unit that can be moved by a user operation in order to switch the state of the electronic device, and the switch unit enables wireless communication by the wireless unit. An electronic device that acts as an antenna for
[2] The switch section is disposed within an outer frame of a housing of the electronic device, and is provided with a body section exposed from the housing and extending from the body section in a sliding movement direction of the switch section, a shaft member arranged in the housing, wherein the shaft member switches the state of the electronic device between a first state and a second state when the main body is slid; [1] The electronic device described in .
[3] Further comprising: a holding member that contacts the shaft member and biases the shaft member; and a power supply unit that is arranged in the housing and supplies power for the wireless communication, wherein the holding member , the electronic device according to [2], which functions as a power supply section from the power supply section to the shaft member.
[4] The power supply unit has a switching unit that switches between the first state and the second state, and the first state is the first position where the shaft member is in contact with the switching unit. A state in which the power supply unit is ON, and the second state is a state in which the shaft member is in a second position in which the switching unit is not in contact with the power supply unit, and the power supply unit is OFF. 3].
[5] The shaft member has a first groove and a second groove arranged at mutually different positions on the outer peripheral surface of the shaft member, and when the holding member is engaged with the first groove, the holding member holds the shaft member in the first position, and when the holding member engages the second groove, the holding member holds the shaft member in the second position, [ 4]. [6] The housing includes an outer case made of resin and an inner case made of metal, the shaft member is made of a metal material, and the shaft member extends from the inner case in the slide movement direction. The electronic device according to any one of [2] to [5], which protrudes.
[7] The body portion is made of a resin material, the shaft member is made of a metal material, the shaft member functions as the antenna of the switch portion, and the shaft member is attached to the body portion. Any one of [2] to [6], wherein the shaft member is insert-molded, the shaft member is press-fitted into the main body portion, or the shaft member is adhered to the main body portion. Electronics as described.
[8] The body portion and the shaft member are made of a common resin material, and the functional portion of the switch portion functioning as the antenna is subjected to any one of metal plating, vapor deposition, sputtering, and printing. The electronic device according to any one of [2] to [6].
[9] A control unit that controls execution of the wireless communication by the wireless unit, the control unit detects the wireless sensitivity in the wireless communication, and compares the detected wireless sensitivity with a predetermined threshold. any one of [1] to [8], continuing the wireless communication if the wireless sensitivity is greater than or equal to the threshold value, and stopping the wireless communication if the wireless sensitivity is less than the threshold value. The electronic device described in .

DESCRIPTION OF SYMBOLS 10... Electronic equipment, 20... Case part, 30... Sensor part, 40... Storage part, 50... Power supply part, 60... Wireless part, 61... Antenna, 70... Switch part, 71... Main part, 73... Shaft member, 75 --- operation section, 80 --- control section, 90 --- circuit board, 100 --- soldering section, 110 --- holding member, 130a --- ON presentation section, 130b --- OFF presentation section.

Claims (7)

a switch unit movable between an ON position and an OFF position, the switch unit also functioning as an antenna for wireless communication;
a power supply unit for supplying power to the switch unit via a power supply member;
an operated portion that is operated by an operating portion of the switch portion, the operated portion that starts power supply from the power supply portion when the switch portion moves from the OFF position to the ON position;
with
The electronic device according to claim 1, wherein the power supply member is arranged at a position facing the operated portion via the switch portion located at the ON position . 2. The electronic device according to claim 1 , wherein power supply by said power supply section is started when said operated section is pressed by said operating section of said switch section that moves from said OFF position toward said ON position . 3. The power supply unit according to claim 1, wherein when the operated portion of the switch portion that moves from the ON position toward the OFF position is released from being pressed down, the power supply unit stops supplying power. electronics. 4. The apparatus according to claim 2 , wherein a moving direction of said operating portion of said switch portion moving from said OFF position toward said ON position intersects with a moving direction of said operated portion pressed by said operating portion. electronics. The switch section has a rod-shaped shaft member,
The electronic device according to any one of claims 1 to 4 , wherein the power supply member is a spring member configured to contact a side surface of the shaft member and bias the shaft member . A first groove and a second groove are respectively formed at different positions along the extending direction of the shaft member on the outer peripheral surface of the shaft member,
The power supply member engages with the first groove when the switch is at the ON position, and the power supply member engages with the second groove when the switch is at the OFF position. 6. The electronic device according to claim 5 . further comprising a housing that accommodates at least the power supply unit, the operated unit, and one end side of the switch unit;
7. The electronic device according to any one of claims 1 to 6 , wherein the ON position of the switch section is a position where the one end side of the switch section is located inside the housing more than the OFF position. machine.

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