Electronic device

Abstract

To provide an electronic apparatus capable of eliminating the need for a circuit for protecting against a reverse current flow and avoiding simultaneous use of a plurality of power sources having terminal structures different from each other.SOLUTION: A beacon terminal 100 includes an inner case 160 including a cable accommodating portion 166 that accommodates a USB cable 181 inserted into a USB connector 152, and a battery accommodating portion 165 that accommodates a battery 180 contacting springs 145 and 150, and the cable accommodating portion 166 is provided so as to overlap with the battery accommodating portion 165. As a result, when the USB cable 181 is inserted into the USB connector 152, the USB cable 181 overlaps the position of the battery 180, such that simultaneous use of the battery 180 and an external power source can be avoided. Since the selective connection between the battery 180 and the external power source is physically secured, a backflow protection element is not required.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to an electronic device.

Background Art

[0002] A notebook computer having a battery storage section for storing either a battery pack or an AC adapter is known (see, for example, Patent Document 1). The notebook computer can operate on power from either the battery pack or the AC adapter. In Patent Document 1, the battery pack and the AC adapter share a terminal structure. That is, the battery pack and the AC adapter have the same shape, and the main body connection terminals of the battery pack and the main body connection terminals of the AC adapter are provided at similar positions, and both are connected to the connection terminals of the notebook computer.

[0003] Also, a power tool that drives a motor using power supplied from a battery pack is known (see, for example, Patent Document 2). When the battery pack is removed from the power tool, a cable and a connector extending from a controller inside the power tool are exposed to the outside. An external PC can be connected to the connector via an adapter and a USB cable. Data communication can be performed from an external PC to the controller mounted on the power tool via the USB cable. In Patent Document 2, the USB connection cannot supply power to operate the motor of the power tool and is used only as an auxiliary for data transfer.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in an electronic device, when it is possible to use both power supply by a primary battery and external power supply by a USB cable, a circuit configuration for protecting against reverse current flow is required for simultaneous power supply of the primary battery and the external power supply for safety measures (prevention of leakage and ignition). However, since a circuit for protecting against reverse current flow is required, the manufacturing cost of the electronic device increases.

[0006] An object of the present invention is to provide an electronic device that can eliminate the need for a circuit for protecting against reverse current flow and can avoid simultaneous use of a plurality of power supplies having different terminal structures.

Means for Solving the Problems

[0007] To achieve the above object, an electronic device disclosed in the specification is an electronic device operable by a current supplied from a power supply cable or a battery, and includes a first terminal for supplying a current from the power supply cable, a second terminal for supplying a current from the battery, a first housing portion for housing the power supply cable inserted into the first terminal, and a second housing portion for housing the battery in contact with the second terminal, and a first case having the second housing portion provided so as to overlap the first housing portion wherein the position of the first terminal is different from the position of the second accommodating portion in the height direction of the electronic device characterized by this.

Effects of the Invention

[0008] According to the present invention, it is possible to eliminate the need for a circuit for protecting against reverse current flow and to avoid simultaneous use of a plurality of power supplies having different terminal structures.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0011] FIG. 1(A) is a circuit diagram of an electronic device equipped with a reverse current protection element. FIG. 1(B) is a circuit diagram of the electronic device according to the present embodiment.

[0012] The electronic device 1a in FIG. 1(A) includes a power supply connector 2, a load element 3, a battery 4, and reverse current protection elements 5a and 5b. The electronic device 1b according to the present embodiment includes a power supply connector 2, a load element 3, and a battery 4, but does not include the reverse current protection elements 5a and 5b.

[0013] Each of the electronic devices 1a and 1b is a device equipped with two or more types of power supply sources such as a power supply connector 2 and a battery 4, and is, for example, a beacon terminal, a mobile printer, a smartphone, a notebook computer, or a power tool.

[0014] The power supply connector 2 is a DC (Direct Current) connector, a USB (Universal Serial Bus) connector, or the like. The load element 3 is a load such as a processor, a memory, various sensors, a wireless module, or a motor. The battery 4 is, for example, a primary battery that can only discharge direct current power, or a secondary battery that repeats charging and discharging. The primary battery is a dry battery, a button battery, or the like. The secondary battery is a lithium-ion battery, a nickel-metal hydride battery, a nickel-cadmium battery, or the like. Note that the number of batteries 4 is not necessarily four, and it is not necessary to connect two batteries 4 in parallel. For example, each of the electronic devices 1a and 1b may be driven by one battery 4.

[0015] The reverse current protection elements 5a and 5b are, for example, diodes. The reverse current protection element 5a is connected between the power supply connector 2 and the load element 3 so that the current from the power supply connector 2 flows to the load element 3 and the current from the battery 4 does not flow to the power supply connector 2. The reverse current protection element 5b is connected between the battery 4 and the load element 3 so that the current from the battery 4 flows to the load element 3 and the current from the power supply connector 2 does not flow to the battery 4.

[0016] When using both the drive by the power supply from the battery 4 and the drive by the external power supply from the power supply connector 2, in the conventional electronic device 1a, a circuit configuration for preventing the reverse flow of current was required for the simultaneous power supply of the battery 4 and the power supply connector 2 (external power supply) for safety measures (prevention of liquid leakage and ignition). That is, when the current flows backward to the battery 4 or the power supply connector 2, the battery 4, the power supply connector 2, or the external power supply connected to the power supply connector 2 malfunctions, so the reverse current protection elements 5a and 5b are provided to prevent this.

[0017] The electronic device 1b according to this embodiment is configured such that a DC cable or a USB cable from an external power supply cannot be connected to the power supply connector 2 unless all or part of the battery 4 (two batteries 4 within the region X in the example of FIG. 1(B)) is removed. In this way, since the selective connection between the battery 4 and the external power supply is physically ensured, the reverse current protection elements 5a and 5b are unnecessary. And because of the physical structure of the electronic device 1b, the battery 4 and the external power supply cannot be used simultaneously, so safety measures can be taken. At the same time, the miniaturization of the substrate mounted on the electronic device 1b, the weight reduction of the electronic device 1b, and the cost reduction effect due to the reduction of the reverse current protection elements 5a and 5b can be obtained.

[0018] Hereinafter, the beacon terminal 100 will be described as an example of the electronic device 1b according to this embodiment. Note that the electronic device according to this embodiment is not limited to the beacon terminal 100, and may be a mobile printer, a smartphone, a notebook personal computer, a power tool, or the like.

[0019] FIG. 2 is an exploded perspective view of the beacon terminal 100 according to this embodiment. FIG. 3(A) is a cross-sectional view of the beacon terminal 100 with a battery mounted. FIG. 3(B) is a cross-sectional view of the beacon terminal 100 with a USB cable connected.

[0020] The beacon terminal 100 can operate with current from either the battery 180 or the USB cable 181. In the beacon terminal 100, the USB cable 181 cannot be connected unless a part of the battery 180 (the two in the middle) is removed. The battery 180 is a primary battery or a secondary battery. Instead of the USB cable 181, a cable of an external power supply that supplies direct current (DC) may be connected. An external power supply cable such as the USB cable 181, a DC cable, or an AC cable is an example of a power supply cable. When a converter is provided in the main body, an AC power supply may be connected. In this embodiment, four batteries 180 are used, and the series connection of two batteries 180 is used in two-line parallel connection. Thereby, it is possible to use for a long period (for example, about 5 years) without replacing the battery.

[0021] As shown in FIG. 2, the beacon terminal 100 includes a QR (Quick Response) label 101, a top case 110 (second case), a waterproof and moisture-permeable sheet 120, an LED lens 130, a printed circuit board 140, a spring 150, an inner case 160 (first case), rubber packings 170a, 170b (first waterproof member, second waterproof member), a battery cap 190, and a bracket 200. Further, as shown in FIGS. 3(A) and 3(B), the beacon terminal 100 includes a stopper anchor 151, a USB connector 152, and a flexible cable 153.

[0022] The QR label 101 is a label for identifying the beacon terminal 100 and is attached to the center of the upper surface of the top case 110.

[0023] The top case 110 is box-shaped with an opening (see FIG. 6) and is a waterproof case that covers each element such as the printed circuit board 140 and the inner case 160. The upper surface of the top case 110 is provided with an opening 111 for taking in outside air and an opening 112 for exposing the LED lens 130.

[0024] The waterproof and moisture-permeable sheet 120 is annular and is a sheet that allows air and water vapor to pass through but does not allow water to pass through. Double-sided tapes 121 with waterproof performance are provided on the inner and outer circumferences of the waterproof and moisture-permeable sheet 120. The waterproof and moisture-permeable sheet 120 is fixed to the back surface of the top case 110 (the surface facing the battery 180 in FIG. 3(A)) so as to close the opening 111 with the double-sided tape 121. Thereby, the temperature and humidity of the air that has passed through the waterproof and moisture-permeable sheet 120 can be measured by the temperature and humidity sensor 242 (see FIG. 4(A)) mounted on the printed circuit board 140.

[0025] The LED lens 130 is a lens that functions as a transparent window for the illuminance sensor 244 (see Fig. 4(A)) mounted on the printed circuit board 140 to measure the external brightness, and further functions as a transparent window for visually recognizing the light emission of the LED 245 (see Fig. 4(A)) mounted on the printed circuit board 140. A part of the LED lens 130 protrudes from the opening 112 of the top case 110. The LED lens 130 is fixed to the back surface of the top case 110 with a waterproof double-sided tape (not shown).

[0026] Fig. 4(A) is a front view configuration diagram of the printed circuit board 140, and Fig. 4(B) is a back view configuration diagram of the printed circuit board 140. The front surface 141 of the printed circuit board 140 is the upper surface (the surface facing the top case 110) of the printed circuit board 140 in Fig. 2, and the back surface 142 of the printed circuit board 140 is on the back side of the front surface 141 of the printed circuit board 140.

[0027] The front surface 141 of the printed circuit board 140 is mounted with a wireless module 240, an antenna 241, a temperature and humidity sensor 242, a noise sensor 243, an illuminance sensor 244, an LED 245, and a cable connection terminal 250. The wireless module 240 and the antenna 241 function as a wireless communication unit that performs wireless communication such as Bluetooth (registered trademark) or wireless LAN with an external device. The back surface 142 of the printed circuit board 140 is mounted with an acceleration gyro sensor 246 and a tact switch 247. The printed circuit board 140 has openings 248 and 249 that respectively penetrate the protrusions 162 and 163 (see Fig. 2) of the inner case 160.

[0028] The wireless module 240 outputs a beacon signal via the antenna 241. The temperature and humidity sensor 242 measures the temperature and humidity of the air. The noise sensor 243 measures the noise level. The illuminance sensor 244 converts the incident light into an electric current and measures the brightness. The LED 245 emits light according to various light emission conditions. The operation of the beacon terminal 100 can be visually confirmed by the light emission of the LED 245. The acceleration gyro sensor 246 measures the movement (change in speed) and rotation of the beacon terminal 100. The tact switch 247 indicates switching of various settings. The cable connection terminal 250 is a terminal for electrically connecting the flexible cable 153 (see FIGS. 3(A) and 3(B)) to the printed circuit board 140.

[0029] Returning to FIG. 2, the spring 150 (second terminal) is an electrode that contacts one end of the battery 180, is fixed to the inner case 160, and is not connected to the printed circuit board 140. The spring 145 (second terminal), which is an electrode that contacts the other end of the battery 180, is fixed to the printed circuit board 140.

[0030] The push button 161 is a button for turning on and off the tact switch 247 mounted on the printed circuit board 140 and is attached to the inner case 160.

[0031] The inner case 160 has a claw portion 164 for fixing the printed circuit board 140. The inner case 160 houses the battery 180. The inner case 160 is fixed to the top case 110 with screws.

[0032] The rubber packing 170a is provided between the top case 110 and the inner case 160. The rubber packing 170a is attached around the side surface of the inner case 160 to prevent water from entering between the top case 110 and the inner case 160. The rubber packing 170b is provided between the inner case 160 and the battery cap 190. The rubber packing 170b is attached around the side surface of the inner case 160 to prevent water from entering between the inner case 160 and the battery cap 190. That is, the rubber packings 170a and 170b prevent water from entering the printed circuit board 140.

[0033] The battery cap 190 is attached to ensure waterproof performance when the battery 180 is used. When the power is supplied by the battery 180, the battery cap 190 can be attached to ensure waterproof performance (see Fig. 3(A)).

[0034] The bracket 200 is used for the user to fix the beacon terminal 100 to the wall or ceiling with the screw 210. The bracket 200 is fixed to the wall or ceiling, but the structure of the beacon terminal 100 other than the bracket 200 can be removed from and attached to the bracket 200 by sliding.

[0035] The stopper anchor 151 (see Figs. 3(A) and 3(B)) is a block for fixing the USB connector 152 (the first terminal), and prevents the USB connector 152 from moving when the USB cable 181 is connected by being pushed in. The flexible cable 153 electrically connects the USB connector 152 to the printed circuit board 140.

[0036] Fig. 5(A) is a plan view of the inner case 160. Fig. 5(B) is a plan view of the first modified example of the inner case 160, and Fig. 5(C) is a plan view of the second modified example of the inner case 160. Figs. 5(A) to 5(C) show the structure of the inner case 160 when viewed from the lower side of Fig. 2 (from the side of the bracket 200).

[0037] In Fig. 5(A), the inner case 160 includes four battery accommodation portions 165 (second accommodation portions) for accommodating four batteries 180, and a cable accommodation portion 166 (first accommodation portion) for accommodating a USB cable 181. The number of the battery accommodation portions 165 is not limited to four, and one or more may be provided. The cable accommodation portion 166 is formed so as to overlap with two battery accommodation portions 165 in a plan view. In this case, when using the USB cable 181, it is necessary to remove the batteries from at least the two middle battery accommodation portions 165. The cable accommodation portion 166 may be provided at a position where at least the power supply by the battery can be cut off when the USB cable 181 is connected. An opening 167 for inserting the USB cable 181 into the USB connector 152 is formed at one end of the cable accommodation portion 166. Further, as shown in Fig. 3(A), the battery accommodation portion 165 is provided horizontally, while the cable accommodation portion 166 is provided so as to be inclined by an angle α (first angle: for example, 5 degrees or more and 45 degrees or less) with respect to the horizontal. That is, the position of the cable accommodation portion 166 is different from the position of the battery accommodation portion 165 not only in the horizontal directions (X direction and Y direction) but also in the height direction (Z direction).

[0038] In Fig. 5(A), the cable accommodation portion 166 is formed along the X direction. However, as shown in Fig. 5(B), the cable accommodation portion 166 may be formed along the Y direction. In this case, the opening 167 is provided on the inner wall of the outermost battery accommodation portion 165, and the USB cable 181 is inserted into the USB connector 152 along the Y direction through the opening 167. Due to this structure, in the example of Fig. 5(B), it is necessary to remove all four batteries from the battery accommodation portions 165 in order to connect the USB cable 181. Further, as shown in Fig. 5(C), the opening 167 may be provided on the inner wall of the battery accommodation portion 165 so as to straddle the boundary portion between the two central battery accommodation portions 165. In this case, since the opening 167 accommodates the tip of the USB cable 181, the cable accommodation portion 166 is formed around the opening 167. The USB cable 181 is inserted into the USB connector 152 along the Z direction. In the case of this structure, it is necessary to remove at least the two central batteries in order to connect the USB cable 181.

[0039] FIG. 6 is a perspective view of the beacon terminal 100 when using the USB cable 181. FIG. 6 shows the structure of the beacon terminal 100 when viewed from the lower side of FIG. 2 (from the side of the bracket 200).

[0040] In FIG. 6, the inner case 160 shown in FIG. 5(A) is used. That is, the inner case 160 includes four battery accommodating portions 165 and a cable accommodating portion 166. On the outer peripheral edge 116 of the opening side (the side opposite to the upper surface) of the top case 110, four claw portions 115 that engage with the bracket 200 are provided. The four claw portions 115 are provided in two on each of the two opposite sides of the outer peripheral edge 116.

[0041] The bracket 200 includes a plurality of protrusions 201 that engage with the claw portions 115, a plurality of through holes 202 and 203 through which a cable or the like passes, a notch portion 204 through which the USB cable 181 passes, and a plurality of through holes 205 for screwing the bracket 200. The USB cable 181 may pass through any of the through holes 202 and 203 instead of the notch portion 204. Further, the plurality of through holes 202 and 203 function as escape portions so that the convex portion 191 of the battery cap 190 described later does not contact the bracket 200. Furthermore, when the bracket 200 is attached to a wall or a ceiling, the plurality of through holes 202 and 203 function as wiring openings for connecting a cable drawn from the wall or the ceiling to the USB connector 152 or the printed circuit board 140.

[0042] The plurality of protrusions 201 are provided on the inner walls of the four side surfaces 206 of the bracket 200. Thereby, the top case 110 can be attached to the bracket 200 even when rotated 90 degrees, 180 degrees, or 270 degrees with respect to the bracket 200.

[0043] FIG. 7(A) shows the state before the top case 110 is attached to the bracket 200, and FIG. 7(B) shows the state after the top case 110 is attached to the bracket 200. By sliding the top case 110 in the left direction in FIG. 7(A), the claw portion 115 engages with the protrusion 201, so that the top case 110 can be attached to the bracket 200. In this way, no special tools or the like are required to attach the top case 110 to the bracket 200. When removing the top case 110 from the bracket 200, slide the top case 110 in the right direction in FIG. 7(A). As a result, the claw portion 115 is disengaged from the protrusion 201, so that the top case 110 can be removed from the bracket 200.

[0044] FIG. 8 is a perspective view of the beacon terminal 100 when the battery 180 is used. FIG. 8 shows the structure of the beacon terminal 100 when viewed from the lower side (from the bracket 200 side) of FIG. 2. FIG. 9 shows the state where the battery cap 190 is attached to the top case 110.

[0045] In FIG. 8 as well, the inner case 160 shown in FIG. 5(A) is used. The structures of the top case 110 and the bracket 200 are the same as those in FIG. 6.

[0046] The battery cap 190 is used to fix the battery 180 inside the inner case 160. Four convex portions 191 are provided on the outer peripheral edge 192 of the battery cap 190. The four convex portions 191 are provided two by two on two opposite sides of the outer peripheral edge 192.

[0047] As shown in FIG. 9, the four convex portions 191 are arranged so as to face the four claw portions 115 respectively. When the battery cap 190 is attached to the top case 110, the heights of the outer peripheral edge 116 of the top case 110 and the outer peripheral edge 192 of the battery cap 190 are substantially the same. And the height h1 of the convex portion 191 of the battery cap 190 is set slightly (for example, about 1 mm) higher than the height h2 of the claw portion 115 of the top case 110.

[0048] When the battery 180 is not installed, the weight of the beacon terminal 100 is light. Therefore, even if the top case 110 is accidentally dropped, the claw portion 115 of the top case 110 hits the floor and is less likely to break or bend. On the other hand, when the battery 180 is installed, the weight of the beacon terminal 100 becomes heavy. If the top case 110 is dropped in this state, the claw portion 115 of the top case 110 hits the floor and is more likely to break or bend. In order to reduce the possibility that the claw portion 115 of the top case 110 hits the floor and breaks or bends, the height h1 of the convex portion 191 is set slightly higher than the height h2 of the claw portion 115.

[0049] FIG. 10 is a diagram showing the positional relationship between the battery 180 and the printed circuit board 140. In FIG. 10, the inner case 160 is omitted.

[0050] As shown in FIG. 10, the printed circuit board 140 is inclined with respect to the battery 180 by an angle θ (second angle: for example, 5 degrees or more) so that the wireless module 240 and the antenna 241 mounted on the printed circuit board 140 are separated from the battery 180. If the battery 180, which is a conductor, approaches the wireless module 240 and the antenna 241 too closely, the wireless antenna characteristics will deteriorate. Therefore, the printed circuit board 140 is inclined by an angle θ with respect to the battery 180 so as to separate the wireless module 240 and the antenna 241 from the battery 180 (conductor). Thereby, deterioration of the wireless antenna characteristics can be suppressed.

[0051] As shown in FIGS. 3(A) and 3(B), a rib 169 is provided on the surface 168 of the inner case 160 facing the printed circuit board 140 so that the printed circuit board 140 is inclined with respect to the battery 180 by an angle θ. This can also suppress deterioration of the wireless antenna characteristics. The printed circuit board 140 is supported from below by a part of the surface 168 and the rib 169 so as to be inclined at an angle θ, and is fixed from above by the claw portion 164 (see FIG. 2) of the inner case 160.

[0052] As described above, the beacon terminal 100 according to the present embodiment includes an inner case 160 having a cable accommodating portion 166 that accommodates a USB cable 181 inserted into a USB connector 152, and a battery accommodating portion 165 that accommodates a battery 180 that contacts springs 145 and 150. In a plan view, the cable accommodating portion 166 is formed so as to overlap the battery accommodating portion 165. As a result, when the USB cable 181 is inserted into the USB connector 152, the USB cable 181 overlaps the position of the battery 180. For this reason, unless all or part of the battery 180 (the two middle batteries 180 in the examples of FIGS. 5(A) and 5(C); all the batteries 180 in the example of FIG. 5(B)) is removed, the USB cable 181 from an external power source cannot be connected to the USB connector 152. In this way, since the selective connection between the battery 180 and the external power source is physically ensured, a reverse current protection element is not required. And since the battery 180 and the external power source cannot be used simultaneously due to the physical structure of the beacon terminal 100, safety measures (prevention of liquid leakage and ignition) can be achieved. At the same time, the size of the printed circuit board 140 can be reduced, the weight of the beacon terminal 100 can be reduced, and the cost can be reduced due to the reduction of the reverse current protection element.

[0053] Also, in a plan view, the cable accommodating portion 166 overlaps the battery accommodating portion 165, but the position of the cable accommodating portion 166 or the USB connector 152 is different from the position of the battery accommodating portion 165 in the height direction of the beacon terminal 100 (see FIGS. 3(A) and 3(B)). As a result, when the USB cable 181 is connected to the USB connector 152, it crosses the battery accommodating portion 165. Therefore, the simultaneous use of the battery 180 and the external power source can be avoided due to the physical structure of the beacon terminal 100. Similarly, in a plan view, the cable accommodating portion 166 overlaps the battery accommodating portion 165, but the cable accommodating portion 166 or the USB connector 152 is provided so as to be inclined by a first angle with respect to the battery accommodating portion 165 (see FIGS. 3(A) and 3(B)). As a result, when the USB cable 181 is connected to the USB connector 152, it crosses the battery accommodating portion 165. Therefore, the simultaneous use of the battery 180 and the external power source can be avoided due to the physical structure of the beacon terminal 100.

[0054] Also, according to the present embodiment, the printed circuit board 140 is inclined by an angle θ with respect to the battery 180 housed in the battery housing portion 165 so that the wireless module 240 and the antenna 241 are separated from the battery 180. Therefore, deterioration of the wireless antenna characteristics can be suppressed.

[0055] Furthermore, on the surface 168 of the inner case 160 facing the printed circuit board 140, a rib 169 is provided so that the printed circuit board 140 is inclined by an angle θ with respect to the battery 180. Also by this, deterioration of the wireless antenna characteristics can be suppressed.

[0056] Also, according to the present embodiment, projections 201 are provided on each side surface of the bracket 200, and claw portions 115 that engage with the projections 201 are provided on two opposing sides of the outer peripheral edge 116 of the top case 110. Thereby, the top case 110 can be attached to the bracket 200 even when rotated 90 degrees, 180 degrees, or 270 degrees with respect to the bracket 200.

[0057] Also, according to the present embodiment, claw portions 115 are provided on the outer peripheral edge 116 of the top case 110, and convex portions 191 are provided on the outer peripheral edge 192 of the battery cap 190. And the height h1 of the convex portion 191 is higher than the height h2 of the claw portion 115. For this reason, when the top case 110 drops, the claw portion 115 of the top case 110 hits the floor, and the possibility of being broken or bent can be reduced.

[0058] Furthermore, according to the present embodiment, since the rubber packing 170a is disposed between the inner case 160 and the top case 110, and the rubber packing 170b is disposed between the inner case 160 and the battery cap 190, it is possible to suppress water from entering between the inner case 160 and the top case 110 and between the inner case 160 and the battery cap 190.

[0059] Furthermore, the present invention is not limited to the above-described embodiments, and various modifications can be made and implemented without departing from the gist thereof.

Explanation of Reference Numerals

[0060] 100 Beacon terminal 101 QR label 110 Top case 120 Waterproof and moisture-permeable sheet 130 LED lens 140 Printed circuit board 145, 150 Spring 160 Inner case 165 Battery housing part 166 Cable housing part 170a, 170b Rubber packing 190 Battery cap 200 Bracket

Claims

1. An electronic device operable by a current supplied from a power supply cable or a battery, a first terminal for supplying current from the power supply cable, a second terminal for supplying current from the battery, and a first case having a first accommodating portion for accommodating the power supply cable inserted into the first terminal and a second accommodating portion for accommodating the battery contacting the second terminal, wherein the first accommodating portion is provided so as to overlap the second accommodating portion, and the position of the first terminal is different from the position of the second accommodating portion in the height direction of the electronic device. An electronic device characterized by this.

2. The electronic device according to claim 1, wherein the first terminal is provided so as to be inclined by a first angle with respect to the second accommodating portion.

3. The electronic device according to claim 1, wherein an opening for connecting the power supply cable to the first terminal is provided on an inner wall of the second accommodating portion.

4. comprising a substrate having a wireless communication unit for performing wireless communication with an external device, wherein the substrate is inclined by a second angle with respect to the battery accommodated in the second accommodating portion so that the wireless communication unit is away from the battery. The electronic device according to any one of claims 1 to 3.

5. a second case covering the first terminal, the second terminal, and the first case, and a bracket attached to the second case, wherein protrusions are provided on each side surface of the bracket, and claw portions engaging with the protrusions are provided on two opposing sides of an outer peripheral edge of the second case. The electronic device according to any one of claims 1 to 4.

6. a second case covering the first terminal, the second terminal, and the first case, and a cap for fixing the battery in the second accommodating portion, wherein claw portions are provided on an outer peripheral edge of the second case, and convex portions are provided on an outer peripheral edge of the cap, and the height of the convex portions is higher than the height of the claw portions. The electronic device according to any one of claims 1 to 4.

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