Electronic device

The electronic device employs a two-step detachment mechanism for the battery holder to prevent accidental battery ejection while maintaining a compact form factor.

JP2025141131APending Publication Date: 2025-09-29KK TOKAI RIKA DENKI SEISAKUSHO +1
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Patent Information

Application Number
JP2024040915
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-15
Publication Date
2025-09-29

AI Technical Summary

Technical Problem

Existing electronic devices lack a mechanism to prevent batteries from unintentionally falling out due to unintended operations while occupying minimal space.

Method used

A disk-shaped battery holder with a lid that requires a two-step operation to detach, involving a linear displacement followed by a rotational movement, to securely retain the battery and minimize space usage.

Benefits of technology

Prevents battery ejection from unintended operations effectively while maintaining a compact design by requiring a deliberate two-step detachment process.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an electronic device in which a mechanism for suppressing a detachment of a battery due to an unintended operation is provided in a space-saving manner.SOLUTION: An engagement between a first engagement part 231 and a rotation regulation part 12 is released by performing a first detachment operation OD1. An engagement between a second engagement part 232 and a detachment regulation part 13 is released by performing a second detachment operation OD2 while maintaining a state where the first detachment operation OD1 is performed. By performing the second detachment operation OD2, a lid 20 is made possible to be detached from a case part 10. The first detachment operation OD1 is an operation for displacing the lid 20 in a direction along a central axis Ax of a base part 21. The second detachment operation OD2 is an operation for rotating the lid 20 about the central axis Ax.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] The present disclosure relates to electronic devices. [Background technology]

[0002] Patent Document 1 describes a battery holder that holds a battery and a case body. The battery holder and case body are fixed in an engaged state. The engagement between the battery holder and case body can be released by sliding the battery holder in two different directions relative to the case body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-120634 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide an electronic device that has a space-saving mechanism for preventing the battery from falling off due to unintentional operation. [Means for solving the problem]

[0005] One example embodiment provided by the present disclosure is a case section defining a space for detachably accommodating a disk-shaped battery; a lid attached to the case portion to close the space; It is equipped with The lid body is A disk-shaped base and a claw portion formed to protrude radially from the base and engage with the case portion to restrict displacement of the battery in a first direction away from the space; It is equipped with The claw portion is a first engagement portion that engages with a rotation restriction portion provided in the case portion to restrict displacement of the base portion in the circumferential direction; a second engaging portion that engages with a separation restricting portion provided in the case portion to restrict displacement of the base portion in the first direction; It is equipped with The engagement between the first engagement portion and the rotation restriction portion is released by performing a first operation, and the engagement between the second engagement portion and the separation restriction portion is released by performing a second operation while maintaining the state in which the first operation is performed, When the second operation is performed, the lid body can be detached from the case portion, the first operation is an operation of displacing the lid body in a direction along the central axis of the base, The second operation is an operation of rotating the lid body around the central axis.

[0006] According to the above configuration, in the electronic device of this embodiment, the lid cannot be detached from the case unless a second operation, which is an operation in a different direction from the first operation, is performed while maintaining the first operation. This prevents the battery from falling off due to unintended operation. Furthermore, since the first operation is an operation of linearly displacing the lid along the central axis and the second operation is an operation of rotating the lid around the central axis, unintended battery removal can be further prevented. Additionally, since the lid is only displaced in a direction along the central axis of the base through the first and second operations, the space occupied by the mechanism for preventing battery removal can be prevented from increasing in a direction intersecting the central axis of the base. Therefore, an electronic device can be provided in which a mechanism for preventing battery removal due to unintended operation is provided in a space-saving manner. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 illustrates an electronic device according to an embodiment. [Figure 2] FIG. 2 illustrates an example of the electronic device when the cover is attached. [Figure 3]FIG. 3 is an enlarged view of the engaging portion and the case portion when the cover is in the attached state. [Figure 4] FIG. 4 illustrates a first detachment operation and a second detachment operation for the cover to transition from the attached state to the detached state. [Figure 5] FIG. 5 is a schematic diagram illustrating the case portion and the engagement portion in the attached state. [Figure 6] FIG. 6 is a schematic diagram illustrating the case portion and the engaging portion during transition from the attached state to the detached state. [Figure 7] FIG. 7 is a schematic diagram illustrating the case and the engagement portion during transition from an attached state to a detached state. [Figure 8] FIG. 8 is a schematic diagram illustrating the case portion and the engaging portion in the detached state. [Figure 9] FIG. 9 illustrates the cover according to this embodiment. [Figure 10] FIG. 10 is a plan view of the lid. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments will be described with reference to the accompanying drawings. In the drawings used in the following description, the scale has been appropriately changed so that each element can be recognized.

[0009] In the accompanying drawings, arrow F indicates the forward direction of the illustrated structure. Arrow B indicates the rearward direction of the illustrated structure. Arrow U indicates the upward direction of the illustrated structure. Arrow D indicates the downward direction of the illustrated structure. Arrow R indicates the rightward direction of the illustrated structure. Arrow L indicates the leftward direction of the illustrated structure. These directional expressions are used for convenience of explanation and do not limit the posture or direction of the illustrated structure in actual use.

[0010] In addition, the term "front-rear direction" used in this specification means a direction along the aforementioned front and rear directions, and the term "up-down direction" means a direction along the aforementioned up-down directions.

[0011] 1 illustrates an electronic device 1 according to an embodiment. The electronic device 1 is configured so that a disk-shaped battery B can be housed inside the electronic device 1.

[0012] The electronic device 1 includes a case 10. The case 10 defines a space for detachably accommodating a battery B. In this embodiment, the case 10 has a space formed as a cylindrical recess, and the battery B can be accommodated in this space.

[0013] The electronic device 1 includes a lid 20. The lid 20 is configured to be attached to the case 10 to close the space. The lid 20 includes a base 21 and claws 22. The base 21 is formed in a disk shape. The claws 22 are formed to protrude radially from the base 21. The claws 22 are formed with engagement portions 23.

[0014] The electronic device 1 includes a cover 30. The cover 30 is configured to be able to house the case 10, the lid 20, and the battery B therein.

[0015] FIG. 2 illustrates the electronic device 1 when the lid 20 is attached. In the attached state, upward displacement of the lid 20 relative to the case 10 is restricted. Specifically, upward displacement is restricted by engagement of the engagement portions 23 formed on the claws 22 with the case 10. This also restricts upward displacement of the battery B, which would cause it to leave the storage space. The upward direction is an example of the first direction. In the attached state, the battery B and the lid 20 are biased upward by a biasing member (not shown).

[0016] In order for the lid body 20 to transition from the detached state (detached state) of the lid body 20 illustrated in FIG. 1 to the attached state, a first attachment operation OA1 and a second attachment operation OA2 must be performed.

[0017] The first attachment operation OA1 is an operation for displacing the lid body 20 downward along the central axis Ax of the base portion 21. As illustrated in FIG. 3 , the case portion 10 has a notch 11 extending in the vertical direction. The first attachment operation OA1 is performed so that the claw portion 22 passes through the notch 11. The case portion 10 has a detachment prevention portion 13 extending along the circumferential direction of the lid body 20. Once the claw portion 22 passes through the notch 11, it becomes possible to perform the second attachment operation OA2, which rotates the lid body 20 clockwise along the detachment prevention portion 13.

[0018] FIG. 4 illustrates a cross section of the case 10 as viewed from the radial direction of the base 21 along line AA in FIG. 3. A rotation restricting portion 12 is formed in the case 10. When the engaging portion 23 abuts against the rotation restricting portion 12, clockwise rotation of the lid 20 is restricted. The detachment restricting portion 13 includes a first detachment restricting portion 131 that has a bottom and opens downward. When the operating force is released in this state, the engaging portion 23 is displaced upward by the upward biasing force of the biasing member and engages with the first detachment restricting portion 131. As a result, as illustrated in FIG. 4, the engaging portion 23 engages with the case 10, and the lid 20 assumes the attached state.

[0019] The engaging portion 23 is formed with a first engaging portion 231 and a second engaging portion 232. The first engaging portion 231 is formed as a surface that extends along the radial direction of the base portion 21 and the central axis Ax. The second engaging portion 232 is formed as a surface that extends along the radial direction of the base portion 21 and intersects with the central axis Ax.

[0020] In the attached state, the first engagement portion 231 engages with the rotation restriction portion 12 provided on the case portion 10, thereby restricting the displacement of the base portion 21 in the counterclockwise direction around the central axis Ax.

[0021] In the attached state, the second engagement portion 232 engages with the first removal prevention portion 131 provided on the case portion 10, thereby preventing the base portion 21 from being displaced upward.

[0022] 5 illustrates a first detachment operation OD1 and a second detachment operation OD2 for transitioning the lid body 20 from the attached state to the detached state. The first detachment operation OD1 is an operation for displacing the lid body 20 downward along the central axis Ax of the base 21. The downward direction is an example of the second direction. The first detachment operation OD1 is an example of a first operation. The second detachment operation OD2 is an operation for rotating the lid body 20 counterclockwise around the central axis Ax. The second detachment operation OD2 is an example of a second operation.

[0023] Next, the engagement between the engaging portion 23 and the case portion 10 during the transition from the attached state to the detached state will be described with reference to FIGS.

[0024] The engagement between the first engagement portion 231 and the rotation restricting portion 12 is released by performing a first detaching operation OD1. In this embodiment, the first detaching operation OD1 is an operation in which the lid body 20 is displaced downward, and therefore, as illustrated in Fig. 6, the first engagement portion 231 is positioned below the lower end of the rotation restricting portion 12. This releases the engagement between the first engagement portion 231 and the rotation restricting portion 12, and also makes it possible for the lid body 20 to rotate counterclockwise relative to the case portion 10 around the central axis Ax.

[0025] When the first detachment operation OD1 is released, the lid body 20 is displaced upward because it is biased upward. As a result, the first engagement portion 231 is also displaced upward, and the first engagement portion 231 and the rotation restriction portion 12 engage with each other again.

[0026] The engagement between the second engagement portion 232 and the separation restriction portion 13 is released by performing a second separation operation OD2 while maintaining the state in which the first separation operation OD1 has been performed. When the second separation operation OD2 is performed, the engagement portion 23 is displaced in the direction of the notch 11.

[0027] 7, the detachment restricting portion 13 includes a second detachment restricting portion 132 extending along the circumferential direction of the base portion 21. During the second detachment operation OD2, when the engaging portion 23 is positioned between the first detachment restricting portion 131 and the notch portion 11, the second engaging portion 232 engages with the second detachment restricting portion 132. This restricts upward displacement of the second engaging portion 232, and maintains a state in which the lid body 20 cannot be detached from the case portion 10.

[0028] By performing the second removal operation OD2, the lid body 20 can be removed from the case part 10. When the second removal operation OD2 is completed, the engagement part 23 faces the cutout part 11, as illustrated in FIG. 8. At this time, the second engagement part 232 is not engaged with the first removal restriction part 131 or the second removal restriction part 132. This allows the lid body 20 to be displaced upward, and the claw part 22 passes through the cutout part 11, allowing the lid body 20 to be removed from the case part 10.

[0029] The second separation restricting portion 132 is formed with a tapered portion 1321. As illustrated in Figs. 6 to 8, in this embodiment, the tapered portion 1321 is formed in the second separation restricting portion 132 so as to slope downward from the notched portion 11 to the rotation restricting portion 12.

[0030] Because the tapered portion 1321 is formed in the second removal restriction portion 132, the second attachment operation OA2 can be performed in the first attachment operation OA1 without displacing the lid body 20 downward as much as in the first removal operation OD1. In other words, in the first attachment operation OA1, the operation of rotating the lid body 20 can be performed without displacing the lid body 20 downward as much as in the first removal operation OD1. For this reason, the second attachment operation OA2 is easier to perform than the second removal operation OD2. As a result, the lid body 20 is configured to be easier to attach to the case unit 10 than to remove from the case unit 10.

[0031] The tapered portion 1321 may be formed only on a part of the second separation restriction portion 132 as in this embodiment, or may be formed on the entire surface of the second separation restriction portion 132.

[0032] In an electronic device 1 that incorporates a battery B, it is desirable to provide a mechanism that makes it difficult for the battery B to fall out due to unintentional operation. On the other hand, it is desirable to prevent the increase in the space occupied by the mechanism within the electronic device 1 from increasing.

[0033] In the electronic device 1 of this embodiment, the lid 20 cannot be detached from the case 10 unless the second detachment operation OD2, which is an operation in a different direction from the first detachment operation OD1, is performed while maintaining the state in which the first detachment operation OD1 has been performed. This makes it possible to prevent the battery B from falling off due to an unintentional operation.

[0034] Furthermore, the first detachment operation OD1 is an operation for linearly displacing the lid body 20 along the central axis Ax, and the second detachment operation OD2 is an operation for rotating the lid body 20 around the central axis Ax, which further prevents the battery B from falling out due to unintentional operations. In addition, the lid body 20 is not displaced in any direction other than along the central axis Ax of the base 21 through the first detachment operation OD1 and the second detachment operation OD2, which prevents the space occupied by the mechanism for preventing the battery B from falling out from increasing in a direction intersecting the central axis Ax of the base 21.

[0035] Therefore, it is possible to provide an electronic device 1 in which a mechanism for preventing the battery B from falling off due to an unintentional operation is provided in a space-saving manner.

[0036] In this embodiment, the first detachment operation OD1 is an operation of displacing the lid body 20 downward, which is the opposite direction to the first direction, i.e., the upward direction. When the lid body 20 and the case part 10 are detached, the lid body 20 is displaced upward relative to the case part 10. However, because the first detachment operation OD1 is an operation of displacing the lid body 20 in the opposite direction to the detachment direction, a clear intention is required for the operation. Simply displacing the lid body 20 upward relative to the case part 10 releases the engagement between the first engagement part 231 and the rotation restriction part 12, which more reliably prevents the battery B from falling off due to an unintentional operation.

[0037] As illustrated in FIG. 9, the electronic device 1 may include an intermediate cover 40. The intermediate cover 40 is an example of a cover. The intermediate cover 40 is configured to be detachable from the case portion 10. When the intermediate cover 40 is attached to the case portion 10, it is arranged to cover the lid body 20.

[0038] FIG. 10 illustrates the appearance of the lid body 20 as viewed in the direction along the central axis Ax. The lid body 20 includes a protruding portion 24. The protruding portion 24 protrudes upward from the base portion 21.

[0039] The intermediate cover 40 has a recessed portion 41 that is recessed upward. When the intermediate cover 40 covers the lid body 20, the protruding portion 24 is accommodated in the recessed portion 41. Thereby, the recessed portion 41 restricts the lid body 20 from rotating in the direction of the second detachment operation OD2. It is desirable that the recessed portion 41 has a dimension that can be fitted with the protruding portion 24.

[0040] According to the above configuration, even if the first detachment operation OD1 is inadvertently performed when the intermediate cover 40 is arranged to cover the lid body 20, the lid body 20 is restricted from rotating in the direction of the second detachment operation OD2. Thereby, it is possible to suppress the second detachment operation OD2 from being inadvertently performed unless the intermediate cover 40 is removed from the lid body 20.

[0041] As illustrated in FIG. 10, the protruding portion 24 includes a first protruding portion 241 and a second protruding portion 242. The first protruding portion 241 and the second protruding portion 242 have different dimensions from each other. In the present embodiment, assuming that the dimension of the width in the front-rear direction of the first protruding portion 241 is W1 and the dimension of the width in the front-rear direction of the second protruding portion 242 is W2, the first protruding portion 241 and the second protruding portion 242 are formed such that W1 < W2.

[0042] As illustrated in FIG. 9, the recessed portion 41 includes a first recessed portion 411 and a second recessed portion 412. The first recessed portion 411 and the second recessed portion 412 are open on the surface facing the case portion 10. As a result, the first recessed portion 411 and the second recessed portion 412 form convex portions on the surface opposite to the said surface. The first recessed portion 411 and the second recessed portion 412 have different dimensions from each other. If the dimension of the width in the front-rear direction in the first recessed portion 411 is W3, and the dimension of the width in the front-rear direction in the second recessed portion 412 is W4, then the first recessed portion 411 and the second recessed portion 412 are formed such that W3 < W4.

[0043] The dimension of the first recessed portion 411 is determined to be able to accommodate the first protruding portion 241. In the present embodiment, since the dimension W3 of the width in the front-rear direction in the first recessed portion 411 is larger than the dimension W1 of the width in the front-rear direction in the first protruding portion 241, the first recessed portion 411 can accommodate the first protruding portion 241.

[0044] The dimension of the first recessed portion 411 is determined to be unable to accommodate the second protruding portion 242. In the present embodiment, since the dimension W3 of the width in the front-rear direction in the first recessed portion 411 is smaller than the dimension W2 of the width in the front-rear direction in the second protruding portion 242, the first recessed portion 411 cannot accommodate the second protruding portion 242.

[0045] The dimension of the second recessed portion 412 is determined to be able to accommodate the second protruding portion 242 when the first protruding portion 241 is accommodated in the first recessed portion 411. In the present embodiment, since the dimension W4 of the width in the front-rear direction in the second recessed portion 412 is larger than the dimension W2 of the width in the front-rear direction in the second protruding portion 242, the second recessed portion 412 can accommodate the second protruding portion 242. Also, the second recessed portion 412 is formed at a position where it can accommodate the second protruding portion 242 when the first protruding portion 241 is accommodated in the first recessed portion 411.

[0046] 9, a separate member 50 can be disposed on the surface of the middle cover 40 that does not face the case portion 10. The first recessed portion 411 and the second recessed portion 412, which are the two recessed portions 41, have different dimensions, which increases the degree of freedom in the location of disposing the separate member 50 while ensuring the function of suppressing the unintended second detachment operation OD described above.

[0047] As illustrated in FIG. 10 , the claw portion 22 includes a first claw portion 221 and a second claw portion 222. The rotation restricting portion 12 includes a first rotation restricting portion that engages with the first claw portion 221 and a second rotation restricting portion that engages with the second claw portion 222. As illustrated in FIG. 1 , the notch portion 11 includes a first notch portion 111 and a second notch portion 112. The first notch portion 111 is formed to allow the first claw portion 221 to pass through. The second notch portion 112 is formed to allow the second claw portion 222 to pass through. The first notch portion 111 is an example of a first restricting portion. The second notch portion 112 is an example of a second restricting portion.

[0048] The second claw portion 222 is not located on a line L1 passing through the first claw portion 221 and the central axis Ax of the base portion 21. As illustrated in Fig. 10, the second claw portion 222 is not located on a line L1 passing through the first claw portion 221 and the central axis Ax. The first claw portion 221 is not located on a line L2 passing through the second claw portion 222 and the central axis Ax.

[0049] When the dimensions of the first recessed portion 411 and the second recessed portion 412 and the first protruding portion 241 and the second protruding portion 242 are different, it is necessary to uniquely determine the posture in which the lid body 20 is assembled to the case portion 10 in order for the intermediate cover 40 to be assembled so as to cover the lid body 20. Since the second claw portion 222 is not positioned on the line L1 passing through the first claw portion 221 and the central axis Ax of the base portion 21, the posture in which the lid body 20 is assembled to the case portion 10 is uniquely determined.

[0050] The configurations described above are merely examples to facilitate understanding of the present disclosure. Each configuration example can be appropriately modified or combined with other configurations without departing from the spirit of the present disclosure. [Explanation of symbols]

[0051] 1 electronic device, 10 case portion, 111 first notch portion (first rotation restricting portion), 112 second notch portion (second rotation restricting portion), 12 rotation restricting portion, 13 removal restricting portion, 20 lid body, 21 base portion, 22 claw portion, 221 first claw portion, 222 second claw portion, 23 engaging portion, 231 first engaging portion, 232 second engaging portion, 24 protruding portion, 241 first protruding portion, 242 second protruding portion, 40 intermediate cover (cover), 41 recessed portion, 411 first recessed portion, 412 second recessed portion, B battery, OD1 first removal operation, OD2 second removal operation

Claims

1. a case section defining a space for detachably accommodating a disk-shaped battery; a lid attached to the case portion to close the space; It is equipped with The lid body is A disk-shaped base and a claw portion formed to protrude radially from the base and engage with the case portion to restrict displacement of the battery in a first direction away from the space; It is equipped with The claw portion is a first engagement portion that engages with a rotation restriction portion provided in the case portion to restrict displacement of the base portion in the circumferential direction; a second engaging portion that engages with a separation restricting portion provided in the case portion to restrict displacement of the base portion in the first direction; It is equipped with The engagement between the first engagement portion and the rotation restriction portion is released by performing a first operation, and the engagement between the second engagement portion and the separation restriction portion is released by performing a second operation while maintaining the state in which the first operation is performed, When the second operation is performed, the lid body can be detached from the case portion, the first operation is an operation of displacing the lid body in a direction along the central axis of the base, The second operation is an operation of rotating the lid body around the central axis. electronic equipment.

2. The first operation is an operation of displacing the lid body in a second direction that is a direction opposite to the first direction. The electronic device according to claim 1 .

3. The device further includes a cover disposed to cover the lid, The cover includes a protrusion that protrudes in the first direction, The cover has a recess formed therein that is recessed in the first direction, When the cover covers the lid body, the protrusion is received in the recess and restricts the lid body from rotating in the second operation direction.

3. The electronic device according to claim 1 or 2.

4. The protrusion includes a first protrusion and a second protrusion having different sizes; The recessed portion includes a first recessed portion and a second recessed portion having different sizes, a size of the first recessed portion is determined so as to be able to accommodate the first protruding portion but not to accommodate the second protruding portion; The dimensions of the second recessed portion are determined so that the second protruding portion can be accommodated therein when the first protruding portion is accommodated in the first recessed portion. The electronic device according to claim 3 .

5. The claw portion includes a first claw portion and a second claw portion, the rotation restricting portion includes a first rotation restricting portion that engages with the first claw portion and a second rotation restricting portion that engages with the second claw portion, The second claw portion is not located on a straight line passing through the first claw portion and the central axis.

5. The electronic device according to claim 4.

Citation Information

Patent Citations

  • Electronic apparatus

    JP2023120634A