Electronic device and method for preventing incorrect connection of power conversion adapter

Abstract

To provide an electronic apparatus, etc. which can contribute to prevention of wrong connection of a power supply conversion adapter to an electronic apparatus body without adding a complicated electronic circuit.SOLUTION: In an electronic apparatus, power is supplied from an external power supply to an electronic apparatus body via a power conversion adapter. The power conversion adapter comprises: a plug; a power cable; and an action part attached to the power cable. The electronic apparatus body comprises: a power supply jack which is attachably / detachably, mechanically and electrically connected with the plug; an electronic circuit; and a switch which performs electric connection / disconnection between the power supply jack and the electronic circuit. The action part is constituted to act on the switch when the plug is connected with the power supply jack. The switch is constituted to electrically connect between the power supply jack and the electronic circuit when it is acted by the action part.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to an electronic device configured to be powered from a power conversion adapter to an electronic device main body, and a method for preventing incorrect connection of the power conversion adapter.

Background Art

[0002] An electronic device configured to be powered from a power conversion adapter to an electronic device main body is designed to exhibit predetermined performance when being powered from the power conversion adapter to the electronic device main body. For example, in order to prevent the noise generated by the electronic device main body from being conducted to the commercial power supply and to prevent the noise generated by other electronic devices connected to the commercial power supply from being conducted to its own electronic device main body, the electronic device main body and the power conversion adapter are configured to cooperate to have a noise filter function. Further, when an overcurrent flows due to a possible failure of the electronic device main body, the power conversion adapter is configured to include an overcurrent protection circuit that stops power supply when a current exceeding the normal consumption current of the electronic device main body flows, in order to suppress the spread of damage.

[0003] In addition, since the noise components generated by the electronic device main body differ depending on the use of the electronic device and the consumption current of the electronic device main body also differs depending on the use of the electronic device, the performance of the electronic device main body is guaranteed when combined with the attached power conversion adapter. Therefore, the electronic device is usually specified in the instruction manual or the like to connect a predetermined power conversion adapter attached to the electronic device main body to the electronic device main body.

[0004] However, in Japan, the power plug of the power conversion adapter and the power jack of the electronic device are often determined by the general standard of JEITA (Japan Electronics and Information Technology Industries Association)'s RC-5320A. Therefore, there have been cases where the power plug of a power conversion adapter other than the attached one is connected to the power jack of the electronic device body for use. When a power conversion adapter other than the attached one is connected to the electronic device body for use, malfunctions may occur in the operation of the electronic device itself or peripheral devices, and the predetermined performance may not be achieved. In the event of an abnormality, the protection function may not work properly, resulting in significant damage.

[0005] Therefore, there is a technology to prevent the use of a power conversion adapter other than the attached one by connecting it to the electronic device body. For example, Patent Document 1 discloses a method for preventing incorrect connection of an adapter that monitors the input voltage and noise level from the adapter, determines whether the input voltage and noise level are within each reference value, and cuts off the power supply from the adapter when they are not within the reference values. Patent Document 2 also discloses a method for preventing incorrect connection of an adapter that receives identification information corresponding to an adapter that supplies power to its own device from a terminal, determines whether the received identification information corresponds to predetermined identification information, and cuts off the power supply from the adapter to its own device when it is determined that they do not correspond.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0007] The following analysis is provided by the inventor of the present application.

[0008] In the methods for preventing incorrect connection of the adapters in Patent Documents 1 and 2, in the device, it is necessary to add a complex electronic circuit for monitoring the input voltage and noise level, receiving identification information, and determining (judging) incorrect connection of the adapter.

[0009] The main problem of the present invention is to provide an electronic device and a method for preventing incorrect connection of a power conversion adapter to the main body of an electronic device, which can contribute to preventing incorrect connection of the power conversion adapter to the main body of the electronic device without adding a complex electronic circuit.

Means for Solving the Problem

[0010] An electronic device according to a first aspect is an electronic device configured to be powered from an external power source to the main body of the electronic device via a power conversion adapter, wherein the power conversion adapter includes a power plug, a power cord electrically connected to the power plug, and an operating portion attached to the power cord, and the main body of the electronic device includes a power jack configured to be removably and mechanically and electrically connected to the power plug of the power conversion adapter, an electronic circuit, and a switch configured to make and break an electrical connection between the power jack and the electronic circuit, and the operating portion is configured to be able to act on the switch when the power plug is connected to the power jack, and the switch is configured to electrically connect between the power jack and the electronic circuit when receiving the action of the operating portion.

[0011] The method for preventing incorrect connection of a power conversion adapter according to the second perspective is a method for preventing incorrect connection of the power conversion adapter in an electronic device configured to be powered from an external power source to the electronic device main body via the power conversion adapter. The power conversion adapter includes a power plug, a power cord electrically connected to the power plug, and an operating portion attached to the power cord. The electronic device main body includes a power jack configured to be mechanically and electrically detachably connected to the power plug of the power conversion adapter, an electronic circuit, and a switch configured to electrically connect and disconnect between the power jack and the electronic circuit. The method for preventing incorrect connection includes connecting the power plug to the power jack and causing the operating portion to act on the switch to electrically connect between the power jack and the electronic circuit.

Effect of the Invention

[0012] According to the first and second perspectives, it is possible to contribute to preventing incorrect connection of the power conversion adapter to the electronic device main body without adding a complicated electronic circuit.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0014] Hereinafter, embodiments will be described with reference to the drawings. In the present application, when reference numerals are attached to the drawings, they are solely for the purpose of assisting understanding and are not intended to limit the illustrated embodiments. Further, the following embodiments are merely examples and do not limit the present invention.

[0015] [Embodiment 1] The electronic device according to Embodiment 1 will be described with reference to the drawings. FIG. 1 is a schematic diagram showing the configuration of the electronic device according to Embodiment 1 with the electronic device main body and the power conversion adapter connected. FIG. 2 is a schematic diagram showing the configuration of the electronic device according to Embodiment 1 with the electronic device main body and the power conversion adapter separated. FIG. 3 is a schematic diagram showing the configuration of the power jack of the electronic device main body and the power plug of the power conversion adapter of the electronic device according to Embodiment 1 connected.

[0016] The electronic device 1 is an electrical product configured to be powered from an external power source (not shown; commercial power source, cigarette socket power source, etc.) to the electronic device main body 10 via the power conversion adapter 20 (see FIG. 1). As the electronic device 1, for example, small electronic devices such as a notebook personal computer, a game machine, a network device, a telephone, and a facsimile device can be used. The electronic device 1 includes an electronic device main body 10 and a power conversion adapter 20.

[0017] The electronic device main body 10 is the main body of the electronic device 1 having a power jack 11 as a power input part (see FIG. 1). The electronic device main body 10 includes a power jack 11, a switch 12, an electronic circuit 13, a housing 14, and a cord fixing part 15.

[0018] The power jack 11 is a connection part (connector) that is detachably mechanically and electrically connected to the power plug 21 of the power conversion adapter 20 (see Fig. 1). The power jack 11 is housed (mounted) in the housing 14 such that the insertion port of the power jack 11 aligns with the hole 14a of the housing 14. The power plug 21 of the power conversion adapter 20 inserted through the hole 14a of the housing 14 is inserted into the insertion port of the power jack 11. A DC power supply (for example, DC12V) from the power conversion adapter 20 is supplied to the power jack 11. The power jack 11 is electrically connected to the electronic circuit 13 via the switch 12 within the electronic device main body 10.

[0019] The switch 12 is a device that makes and breaks (opens and closes) the electrical connection between the power jack 11 and the electronic circuit 13 (see Fig. 1). The switch 12 electrically connects the power jack 11 and the electronic circuit 13 when it receives the action of the operating part 26. The switch 12 includes a switch system 12a that can receive the action of the operating part 26 of the power conversion adapter 20. The switch 12 is configured to turn on when the switch system 12a is pushed by the operating part 26 and turn off when it is not pushed. A part (tip) of the switch system 12a can protrude to the outside through the hole 14a when the switch system 12a is not pushed by the operating part 26 (see Figs. 2 and 3).

[0020] The electronic circuit 13 is an electric circuit that includes electronic active elements corresponding to the functions of the electronic device main body 10 as components (see Fig. 1). The electronic circuit 13 includes a DC-DC converter 13a and a main circuit 13b.

[0021] The DC-DC converter 13a is a component configured to convert the voltage (for example, DC12V) from the switch 12 into multiple types (even one type is possible) of voltages and output it to the main circuit 13b (see Fig. 1). The DC-DC converter 13a converts the power input from the power jack 11 into multiple types (even one type is possible) of voltages used by the main circuit 13b. In the example of Fig. 1, the DC-DC converter 13a converts to 1.0V, 3.3V, and 5.0V, but other voltages are also possible.

[0022] The main circuit 13b is an electronic circuit that forms the main part of the functions of the electronic device main body 10 (see FIG. 1). The main circuit 13b is configured such that a plurality of types of voltages are input from the DCDC converter 13a.

[0023] The housing 14 is a structure that houses (mounts) the power jack 11, the electronic circuit 13, and the switch 12 (see FIG. 1). The housing 14 is provided with a hole portion 14a that leads to the insertion port of the power jack 11 from the outside. The housing 14 is provided with a hole portion 14b that leads to the switch 12 from the outside. The housing 14 is provided with a cord fixing portion 15 for fixing the power cord 22 so that the power plug 21 of the power conversion adapter 20 does not come off from the power jack 11.

[0024] The cord fixing portion 15 is a portion that removably fixes the power cord 22 of the power conversion adapter 20 (see FIG. 1). The cord fixing portion 15 is disposed outside the housing 14 in the vicinity of the hole portion of the housing 14. A pair of cord fixing portions 15 are disposed so as to straddle the hole portion 14b of the housing 14. The cord fixing portion 15 may, for example, sandwich and fix the power cord 22 of the power conversion adapter 20.

[0025] The power conversion adapter 20 is an accessory of the electronic device 1 provided with the power plug 21 as a power output portion (see FIG. 1). For the power conversion adapter 20, an AC-DC adapter, a DC-DC adapter, etc. can be used according to the type of external power supply. The power conversion adapter 20 includes a power plug 21, a power cord 22, a power conversion portion 23, a power cable 24, an outlet plug 25, and an operating portion 26.

[0026] The power plug 21 is a connection portion (connector) that is removably and mechanically and electrically connected to the power jack 11 of the electronic device main body 10 (see FIG. 1). The power plug 21 is electrically connected to the power conversion portion 23 via the power cord 22.

[0027] The power cord 22 is a cord that electrically connects between the power plug 21 and the power conversion unit 23 (see FIG. 1).

[0028] The power conversion unit 23 is a functional unit that converts an external power source (for example, AC100V) into a power source (for example, DC12V) used in the electronic device main body 10 (see FIG. 1). The power conversion unit 23 is electrically connected to the power plug 21 via the power cord 22. In the example of FIG. 1, the power conversion unit 23 is electrically connected to the outlet plug 25 via the power cable 24. The power conversion unit 23 may be integrally configured with the outlet plug without using a power cable. Also, the power conversion unit 23 may be electrically connected to another connection part (for example, a cigarette socket) instead of the outlet plug 25 according to the type of the external power source.

[0029] The power cable 24 is a cable that electrically connects the power conversion unit 23 and the outlet plug 25 (see FIG. 1).

[0030] The outlet plug 25 is a connection part (connector) that electrically and mechanically connects to an outlet of an external power source (not shown) (see FIG. 1). By connecting the outlet plug 25 to the outlet of the commercial power source, the AC100V flowing through the outlet is supplied to the power conversion unit 23 via the power cable 24.

[0031] The acting part 26 is a structural part configured to be able to act on the switch 12 when the power plug 21 is connected to the power jack 11 (see FIG. 1). The acting part 26 is directly attached to the power cord 22. The acting part 26 is attached near the power plug 21 of the power cord 22. The acting part 26 is configured to act on the switch 12 when the power cord 22 is fixed to the cord fixing part 15. As the acting part 26, for example, a three-dimensional structure such as a spherical protrusion or a rectangular parallelepiped can be used. The acting part 26 is configured to push in the switch system 12a when the power cord 22 is fixed to the cord fixing part 15 so that the acting part 26 is arranged between the pair of cord fixing parts 15.

[0032] Next, the operation of the electronic device according to Embodiment 1 will be described with reference to the drawings (FIGS. 1 to 3).

[0033] First, starting from the state where the electronic device main body 10 and the power conversion adapter 20 are separated as shown in FIG. 2, the power plug 21 of the power conversion adapter 20 is connected to the power jack 11 of the electronic device main body 10 as shown in FIG. 3. At this time, since the switch 12 in which the acting portion 26 of the power conversion adapter 20 is not acting is off, even though the power plug 21 and the power jack 11 are connected, power is not supplied from the power conversion adapter 20 to the electronic circuit 13, and the main circuit 13b of the electronic circuit 13 does not operate.

[0034] Next, the power cord 22 of the power conversion adapter 20 is fixed to the cord fixing portion 15 of the electronic device main body 10 as shown in FIG. 1. In this state, since the switch system 12a of the switch 12 of the electronic device main body 10 is acted on (pressed) by the acting portion 26 of the power conversion adapter 20, the switch 12 is turned on, and the power (for example, DC12V) input to the power jack 11 is supplied to the electronic circuit 13. The DCDC converter 13a of the electronic circuit 13 generates 1.0V, 3.3V, and 5.0V used in the main circuit 13b, and the main circuit 13b can operate.

[0035] According to Embodiment 1, since the power plug 21 of the power conversion adapter 20 is connected to the power jack 11 of the electronic device main body 10, and power is supplied from the power conversion adapter 20 to the electronic circuit 13 of the electronic device main body 10 when the acting portion 26 of the power conversion adapter 20 acts on the switch 12 of the electronic device main body 10, it is possible to contribute to preventing incorrect connection of the power conversion adapter to the electronic device main body 10 without adding a complicated electronic circuit.

[0036] Also, according to Embodiment 1, even if the power plug of another power conversion adapter without the operating unit 26 is connected to the power jack 11 of the electronic device main body 10, power supply to the electronic circuit 13 of the electronic device main body 10 can be prevented. Therefore, malfunction or failure does not occur in the electronic device 1 itself or other surrounding electronic devices due to incorrect connection, and harm and damage can be avoided.

[0037] Also, according to Embodiment 1, by preventing incorrect connection of the power conversion adapter to the electronic device main body 10, connection of the power conversion adapter 20 attached to the electronic device main body 10 to the electronic device main body 10 is promoted, and a state in which the predetermined performance of the electronic device 1 can be exhibited can be ensured.

[0038] Furthermore, according to Embodiment 1, even if another power conversion adapter without the operating unit 26 is connected to the electronic device main body 10, power supply from the other power conversion adapter to the electronic circuit 13 of the electronic device main body 10 is not performed. Therefore, malfunctions due to noise or the like can be avoided, the convenience of the user is improved, and it can also contribute to reducing inquiries from users to the manufacturer of the electronic device 1.

[0039] [Embodiment 2] The electronic device according to Embodiment 2 will be described with reference to the drawings. FIG. 4 is a schematic diagram showing the configuration of a state in which the electronic device main body and the power conversion adapter of the electronic device according to Embodiment 2 are connected.

[0040] Embodiment 2 is a modification of Embodiment 1. In Embodiment 1 (see FIG. 1), the power cord 22 of the power conversion adapter 20 is fixed to the cord fixing portion 15 of the electronic device main body 10. At that time, the acting portion 26 provided on the power cord 22 acts on (presses) the switch system 12a of the switch 12 to supply power. However, in Embodiment 2, the cord fixing portion is abolished, and an elastic material such as rubber or plastic that is flexible and has a large frictional force against the housing 14 and is difficult to come off is used to dispose the acting portion 27, and the acting portion 27 has a three-dimensional shape such as a cylinder or a rectangular parallelepiped. The acting portion 27 is detachably attached to the hole portion 14c. The switch system 12a is pushed in by the acting portion when the acting portion 27 is attached to the hole portion 14c. By connecting the power plug 21 of the power conversion adapter 20 to the power jack 11 of the electronic device main body 10 and inserting and fixing the acting portion 27 into the hole portion 14c of the housing 14, the acting portion 27 acts on (presses) the switch system 12a of the switch 12, and the switch 12 is turned on, and the power from the power jack 11 can be supplied to the electronic circuit 13. Other configurations of Embodiment 2 are the same as those of Embodiment 1.

[0041] According to Embodiment 2, similar to Embodiment 1, it is possible to contribute to preventing incorrect connection of the power conversion adapter to the electronic device main body 10 without adding a complicated electronic circuit, and the appearance of the electronic device main body 10 can be made simpler than in Embodiment 1.

[0042] [Embodiment 3] The electronic device according to Embodiment 3 will be described with reference to the drawings. FIG. 5 is a schematic diagram showing the configuration of a state in which the electronic device main body and the power conversion adapter of the electronic device according to Embodiment 3 are connected.

[0043] Embodiment 3 is a modification of Embodiment 2. Instead of directly attaching the operating part 28 to the power cord 22, the operating part 28 is attached to the power cord 22 via a strap 29 (for example, a string, a cord, etc.). The operating part 28 is configured to be inserted into the hole 14d of the housing 14 and can be, for example, a plug-shaped structure. Further, the operating part 28 can be provided with a stopper 28a configured to prevent it from falling out of the hole 14d. By connecting the power plug 21 of the power conversion adapter 20 to the power jack 11 of the electronic device main body 10 and inserting the operating part 28 into the hole 14d of the housing 14, the operating part 28 acts on (presses) the switch system 12a of the switch 12 of the electronic device main body 10, and the power from the power jack 11 can be supplied to the electronic circuit 13.

[0044] According to Embodiment 3, similar to Embodiment 2, it can contribute to preventing incorrect connection of the power conversion adapter to the electronic device main body 10 without adding a complicated electronic circuit, and it becomes unnecessary to accurately position the attachment position of the operating part 28 with respect to the power cord 22.

[0045] [Embodiment 4] The electronic device according to Embodiment 4 will be described with reference to the drawings. FIG. 6 is a schematic diagram showing the configuration of a state in which the electronic device main body and the power conversion adapter of the electronic device according to Embodiment 4 are connected.

[0046] The electronic device 1 is a device configured to be powered from an external power source to the electronic device main body 10 via the power conversion adapter 20. The electronic device 1 includes a power conversion adapter 20 and an electronic device main body 10.

[0047] The power conversion adapter 20 includes a power plug 21, a power cord 22 electrically connected to the power plug 21, and an operating part 26 attached to the power cord 22.

[0048] The main body 10 of the electronic device is provided with a power jack 11 configured to be detachably and mechanically and electrically connected to a power plug 21 of the power conversion adapter 20, an electronic circuit 13, and a switch 12 configured to make and break an electrical connection between the power jack 11 and the electronic circuit 13.

[0049] The actuating portion 26 is configured to be able to act on the switch 12 when the power plug 21 is connected to the power jack 11. The switch 12 is configured to electrically connect between the power jack 11 and the electronic circuit 13 when receiving the action of the actuating portion 26.

[0050] According to the fourth embodiment, since the power plug 21 of the power conversion adapter 20 is connected to the power jack 11 of the main body 10 of the electronic device, and power is supplied from the power conversion adapter 20 to the electronic circuit 13 of the main body 10 of the electronic device when the actuating portion 26 of the power conversion adapter 20 acts on the switch 12 of the main body 10 of the electronic device, it is possible to contribute to preventing incorrect connection of the power conversion adapter to the main body 10 of the electronic device without adding a complicated electronic circuit.

[0051] Some or all of the above embodiments may be described as follows in the appended claims, but are not limited thereto.

[0052] [Appended Claim 1] An electronic device configured to be supplied with power from an external power source via a power conversion adapter, wherein the power conversion adapter comprises a power plug, a power cord electrically connected to the power plug, an actuating portion attached to the power cord, and wherein the main body of the electronic device comprises a power jack configured to be detachably and mechanically and electrically connected to the power plug of the power conversion adapter, an electronic circuit, and a switch configured to make and break an electrical connection between the power jack and the electronic circuit. comprising The acting part is configured to be able to act on the switch when the power plug is connected to the power jack. The switch is configured to electrically connect between the power jack and the electronic circuit when receiving the action of the acting part. Electronic device. [Appendix 2] The acting part is directly attached to the power cord. The electronic device according to Appendix 1. [Appendix 3] The power conversion adapter includes a strap configured to attach the acting part to the power cord. The electronic device according to Appendix 1. [Appendix 4] The electronic device body includes a housing that houses the power jack, the electronic circuit, and the switch. The housing has a hole that leads to the switch from the outside. The switch includes a switch system capable of receiving the action of the acting part of the power conversion adapter, and is configured to be turned on when the switch system is pushed by the acting part and turned off when not pushed. The electronic device according to Appendix 2 or 3. [Appendix 5] A part of the switch system protrudes outside through the hole when the switch system is not pushed. The electronic device according to Appendix 4. [Appendix 6] The electronic device body is disposed outside the housing near the hole, and includes a cord fixing part configured to detachably fix the power cord of the power conversion adapter. The acting part is configured to push in the switch system when the power cord is fixed to the cord fixing part. The electronic device according to Appendix 4 or 5. [Appendix 7] The code fixing parts are arranged in a pair so as to straddle the hole part. When the power cord is fixed to the code fixing parts such that the acting part is arranged between the pair of code fixing parts, the acting part is configured to push in the switch system. The electronic device according to Supplementary Note 6. [Supplementary Note 8] The acting part is configured to be detachably attached to the hole part. When the acting part is attached to the hole part, the switch system is configured to be pushed in by the acting part. The electronic device according to Supplementary Note 4. [Supplementary Note 9] The acting part includes a stopper configured to prevent it from falling out of the hole part. The electronic device according to Supplementary Note 8. [Supplementary Note 10] The electronic circuit a main circuit configured to receive a plurality of types of voltages; a converter that converts the voltage from the switch into the plurality of types of voltages and outputs it toward the main circuit; and includes The electronic device according to any one of Supplementary Notes 1 to 9. [Supplementary Note 11] A misconnection prevention method for preventing misconnection of the power conversion adapter in an electronic device configured to be powered from an external power source to the electronic device main body via the power conversion adapter, The power conversion adapter a power plug; a power cord electrically connected to the power plug; an acting part attached to the power cord; and includes The electronic device main body a power jack configured to be detachably mechanically and electrically connected to the power plug of the power conversion adapter; an electronic circuit; a switch configured to make and break the electrical connection between the power jack and the electronic circuit comprising The misconnection prevention method includes the steps of connecting the power plug to the power jack and operating the actuating portion on the switch to electrically connect between the power jack and the electronic circuit A misconnection prevention method.

[0053] Note that each disclosure of the above patent documents is incorporated herein by reference and can be used as the basis or part of the present invention as necessary. Within the scope of the entire disclosure of the present invention (including the claims and the drawings), further modifications and adjustments of the embodiments or examples can be made based on its basic technical concept. Also, within the scope of the entire disclosure of the present invention, various combinations or selections (including non-selections if necessary) of various disclosure elements (including each element of each claim, each element of each embodiment or example, each element of each drawing, etc.) are possible. That is, the present invention naturally includes various deformations and modifications that could be made by those skilled in the art in accordance with the entire disclosure including the claims and the drawings and the technical concept. Also, regarding the numerical values and numerical ranges described in the present application, even if not explicitly stated, any intermediate value, lower numerical value, and small range are considered to be described. Furthermore, each disclosure item of the above-cited documents is, if necessary, considered to be included in (belong to) the disclosure of the present application and can be used in combination with the description items of this book as part of or all of the disclosure of the present invention in accordance with the spirit of the present invention.

Explanation of Reference Numerals

[0054] 1 Electronic device 10 Electronic device main body 11 Power jack 12 Switch 12a Switch system 13 Electronic circuit 13a DCDC converter 13b Main circuit 14 Housing 14a, 14b, 14c, 14d Hole portions 15 Cord fixing portion 20 Power conversion adapter 21 Power plug 22 Power cord 23 Power conversion unit 24 Power cable 25 Socket plug 26, 27, 28 Actuating part 28a Stopper 29 Strap

Claims

1. An electronic device configured to be powered from an external power source via a power conversion adapter, wherein the power conversion adapter comprises a power plug, a power cord electrically connected to the power plug, an operating portion attached to the power cord, and a strap configured to attach the operating portion to the power cord, and the electronic device body comprises a power jack configured to be removably and mechanically and electrically connected to the power plug of the power conversion adapter, an electronic circuit, and a switch configured to make and break an electrical connection between the power jack and the electronic circuit, and the operating portion is configured to be able to act on the switch when the power plug is connected to the power jack, and the switch is configured to electrically connect between the power jack and the electronic circuit when receiving the action of the operating portion. Electronic device.

2. The operating portion is directly attached to the power cord. The electronic device according to Claim 1.

3. The electronic device body comprises a housing for housing the power jack, the electronic circuit, and the switch, the housing has a hole portion leading to the switch from the outside, the switch comprises a switch system capable of receiving the action of the operating portion of the power conversion adapter, and is configured to be turned on when the switch system is pushed by the operating portion and turned off when not pushed. The electronic device according to Claim 2.

4. The electronic device body is disposed outside the housing in the vicinity of the hole portion, and comprises a cord fixing portion configured to removably fix the power cord of the power conversion adapter, and the operating portion is configured to push in the switch system when the power cord is fixed to the cord fixing portion. The electronic device according to Claim 3.

5. A pair of the cord fixing portions are disposed so as to straddle the hole portion, and the operating portion is configured to push in the switch system when the power cord is fixed to the cord fixing portion such that the operating portion is disposed between the pair of cord fixing portions. The electronic device according to Claim 4.

6. The operating portion is configured to be removably attached to the hole portion. ​ ​ The switch system is configured to be pushed in by the actuating portion when the actuating portion is attached to the hole portion. The electronic device according to claim 3.

7. The actuating portion includes a stopper configured to prevent the actuating portion from falling out of the hole portion. The electronic device according to claim 6.

8. The electronic circuit a main circuit configured to receive a plurality of types of voltages; a converter that converts the voltage from the switch into the plurality of types of voltages and outputs the converted voltage to the main circuit; and includes The electronic device according to claim 1 or 2.

9. A misconnection prevention method for preventing misconnection of the power conversion adapter in an electronic device configured to be powered from an external power source to the electronic device main body via the power conversion adapter, The power conversion adapter a power plug; a power cord electrically connected to the power plug; an actuating portion attached to the power cord; a strap configured to attach the actuating portion to the power cord; and includes The electronic device main body a power jack configured to be removably and mechanically and electrically connected to the power plug of the power conversion adapter; an electronic circuit; a switch configured to electrically connect and disconnect between the power jack and the electronic circuit; and includes The misconnection prevention method connecting the power plug to the power jack; actuating the actuating portion on the switch to electrically connect between the power jack and the electronic circuit; and includes a misconnection prevention method.

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