Electric wire holding structure and electronic device

Abstract

Provided is an electric wire holding structure capable of wiring an electric wire with a simple structure without interfering with the movement of a movable member. The electric wire holding structure is provided with: electric wires (11-14) extending so as to traverse the prism bar (7); and a wire holder (8) that holds the wires (11-14). The wire holder (8) has: a base section (21) disposed at a position away from the movement region of the prism bar (7) in the + Z direction; and a pair of holding pieces (23, 25) extending to opposite sides from each other in the Y direction at positions away from the base portion (21) in the Z direction. The holding pieces (23, 25) are configured so as to be elastically deformable. An electric wire accommodating space (S) for accommodating the electric wires (11-14) is formed between the holding pieces (23, 25) and the base part (21). An electric wire insertion slit (26) having a minimum width (D) smaller than the minimum outer diameter of the electric wires (11-14) is formed between the holding piece (23) and the holding piece (25).

Description

Technical Field

[0001] The present invention relates to an electric wire holding structure and an electronic device, and in particular to a structure for fixing electric wires near a movable component. Background Art

[0002] Various wires are wired inside electronic devices according to the types of voltages and signals. However, when movable parts are arranged inside the electronic devices, it is necessary to prevent the wires from interfering with the movement of the movable parts. In the past, when wires were wired near the movable parts, a bridge component for bridging the wires was provided near the movable parts, and the wires were fixed to the bridge component so that the wires did not interfere with the movement of the movable parts (for example, refer to Patent Document 1). However, in recent years, the demand for compact electronic devices and reduction in the number of components has increased, and a method for wiring wires near movable parts without using such a bridge component is required.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Registered Utility Model No. 3098046 Summary of the invention

[0006] Problems to be solved by the invention

[0007] The present invention has been made in view of the above problems in the prior art, and an object of the present invention is to provide an electric wire holding structure and an electronic device having the electric wire holding structure, which can route electric wires with a simple structure without interfering with the movement of movable parts.

[0008] Means for solving problems

[0009] According to a first aspect of the present invention, there is provided an electric wire holding structure capable of routing electric wires with a simple structure without interfering with the movement of a movable member. The electric wire holding structure includes at least one electric wire extending in a manner of crossing the movable member. The at least one electric wire includes a first portion and a second portion closer to the movable member than the first portion. The electric wire holding structure further includes an electric wire holding frame for holding the at least one electric wire between the first portion and the second portion of the at least one electric wire. The electric wire holding frame includes: a base portion, which is arranged at a position away from the moving area of ​​the movable member in the first direction; and a pair of holding pieces, which extend to opposite sides from each other in a second direction perpendicular to the first direction at a position away from the base portion in the first direction. At least one of the pair of holding pieces is configured to be elastically deformable. A wire storage space for storing the at least one electric wire is formed between the pair of holding pieces and the base portion. A wire insertion slit having a minimum width smaller than the minimum outer diameter of the at least one electric wire is formed between the pair of holding pieces.

[0010] According to a second aspect of the present invention, there is provided an electronic device having the above-mentioned electric wire holding structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a perspective view showing a part of the components of a camera as the electronic device in the first embodiment of the present invention.

[0012] Figure 2 Yes Figure 1 The vicinity of a wire holder of a gear unit in the camera is shown in an enlarged perspective view.

[0013] Figure 3 Yes Figure 2 The vicinity of the wire holder of the gear unit is shown in a top view together with the wires.

[0014] Figure 4 Yes Figure 2 The vicinity of the wire holder of the gear unit is shown in an enlarged front view.

[0015] Figure 5 It is a perspective view showing an enlarged view of the vicinity of the wire holder of the gear unit in the second embodiment of the present invention.

[0016] Figure 6 It is a perspective view showing an enlarged view of the vicinity of a wire holder of a gear unit according to a third embodiment of the present invention. DETAILED DESCRIPTION

[0017] Below, refer to Figures 1 to 6Embodiments of the wire holding structure and the electronic device having the wire holding structure of the present invention are described in detail. Figures 1 to 6 In the present invention, the same or equivalent components are marked with the same reference numerals and repeated descriptions are omitted. Figures 1 to 6 In the following description, unless otherwise specified, terms such as "first" and "second" are used only to distinguish components from each other and do not indicate a specific order or sequence.

[0018] Figure 1 1 is a perspective view showing a part of the components of a camera as an electronic device in the first embodiment of the present invention. The electronic device in the present embodiment is described as a camera, but this is only an example, and the wire holding structure of the present invention can be applied to any electronic device that needs to route wires near a movable part. In addition, in the present embodiment, for convenience, Figure 1 The +Z direction is referred to as “up” or “above”, and the -Z direction is referred to as “down” or “below”.

[0019] like Figure 1 As shown, the camera includes: a circuit board 1 on which various electronic components are mounted; a frame 3 on which a motor and a switch 2 are mounted; a gear unit 5 on which a plurality of gears 4 driven by a motor are mounted; and a prism rod 7 that rotates around an axis 6 to move a prism (not shown) for a viewfinder. In addition, the camera includes four wires 11 to 14 connected to the circuit formed on the circuit board 1. These wires 11 to 14 extend in a manner that crosses the prism rod 7 as a movable part, and are held near the prism rod 7 by a wire holder 8 formed on the gear unit 5. In this embodiment, the wire 11 to 14 and the wire holder 8 that holds these wires 11 to 14 constitute the wire holding mechanism of the present invention.

[0020] Figure 2 1 is a perspective view showing the vicinity of the wire holder 8 of the gear unit 5 in an enlarged manner. Figure 3 1 is a top view showing the vicinity of the wire holder 8 together with the wires 13. Figure 4 FIG. 2 is a front view showing the vicinity of the wire retainer 8 in an enlarged manner. Figures 2 to 4 As shown, the wire holder 8 includes: a base 21 extending in the +Z direction; a first arm 22 extending in the +Z direction near the base 21; a first holding piece 23 extending from the end of the first arm 22 on the +Z direction side in the +Y direction; a second arm 24 extending in the +Z direction near the base 21; and a second holding piece 25 extending from the end of the second arm 24 on the +Z direction side in the -Y direction.

[0021] As described above, the prism bar 7 rotates around the shaft 6, but the base 21 of the wire holder 8 is located at a position away from the rotation area (movement area) of the prism bar 7 in the +Z direction. The first holding piece 23 and the second holding piece 25 are separated from the upper end of the base 21, and a wire storage space S extending in the Y direction is formed between the first holding piece 23 and the base 21 and between the second holding piece 25 and the base 21. The wires 11 to 14 are stored in the wire storage space S.

[0022] The end of the first holding piece 23 on the +Y direction side and the end of the second holding piece 25 on the -Y direction side are opposed to each other, and a wire insertion slot 26 is formed therebetween. The width D of the wire insertion slot 26 along the Y direction (see Figure 3 and Figure 4 ) is smaller than the minimum outer diameter of the wires 11 to 14 housed in the wire housing space S. In this specification, the "minimum outer diameter" of the wire refers to the outer diameter of the wire when there is only one wire housed in the wire housing space S, and refers to the smallest outer diameter among the outer diameters of the plurality of wires when a plurality of wires are housed in the wire housing space S.

[0023] exist Figure 3 In order to facilitate understanding, only the wire 13 is shown in the figure. The following description will be made using the wire 13 as a representative. However, the other wires 11, 12, and 14 are also configured in the same manner as the wire 13. A portion 13A (the first portion) of the wire 13 is arranged along the side surface of the gear unit 5, and a portion 13B (the second portion) closer to the prism rod 7 than the portion 13A is bent in the +X direction and finally meets the circuit board 1 (see Figure 1 The wire holder 8 is configured to hold the wire 13 between the first portion 13A and the second portion 13B of the wire 13. The wire insertion slit 26 of the wire holder 8 in the present embodiment extends in the X direction in a manner intersecting the wire 13 extending obliquely in this manner.

[0024] Here, in order to move the wires 11 to 14 in the wire storage space S in the Y direction (the second direction), the width H of the wire storage space S of the wire holder 8 in the Z direction (the first direction) (see Figure 4 ) is preferably greater than the minimum outer diameter of the wires 11 to 14. In addition, it is preferred that the width H of the wire storage space S is less than twice the minimum outer diameter of the wires 11 to 14. If the width H of the wire storage space S is less than twice the minimum outer diameter of the wires 11 to 14, the order of the wires 11 to 14 in the Y direction will not be changed, so it is easy to arrange the wires 11 to 14 in the wire storage space S of the wire holder 8.

[0025] In the present embodiment, a notch P is formed on the -Y direction side of the base 21 of the wire holder 8, so that the first arm portion 22 supporting the first holding piece 23 is extended in the Z direction. In the present embodiment, any holding piece 23, 25 is configured to be elastically deformable, but by lengthening the Z direction length of the first arm portion 22 supporting the first holding piece 23, the elasticity of the first arm portion 22 is improved, so that the first holding piece 23 is more easily elastically deformed than the second holding piece 25.

[0026] In the wire holder 8 having such a structure, when the wires 11 to 14 are respectively pressed into the wire insertion slits 26 formed between the retaining pieces 23 and 25, the retaining pieces 23 and 25 (particularly the retaining piece 23) are elastically deformed, whereby the wires 11 to 14 pass through the wire insertion slits 26 and enter the wire storage space S. Since the width D of the wire insertion slits 26 is smaller than the minimum outer diameter of the wires 11 to 14, the wires entering the wire storage space S will not be exposed from the wire storage space S unless the retaining pieces 23 and 25 are accidentally deformed. In addition, since the width H of the wire storage space S is greater than or equal to the minimum outer diameter of the wires 11 to 14 and less than twice the minimum outer diameter, the wires 11 to 14 can be arranged in the wire storage space S and can be easily moved in the Y direction.

[0027] In addition, in this embodiment, if Figure 4 As shown, a communication space Q is formed on the +Y direction side of the wire storage space S. When the wires 11 to 14 are routed on the circuit board 1 arranged on the +Y direction side relative to the wire holder 8, the wires (wires 11 and 12) located on the +Y direction side can be arranged in such a communication space Q, so the degree of freedom of routing the wires 11 to 14 is improved.

[0028] In the existing structure, if the wires are fixed to the bridge component, it is difficult to move the wires flexibly, and therefore it is difficult to solder the wires to the circuit board afterwards. However, if it is a wire holding structure like the present embodiment, after the wires 11 to 14 are held on the wire holding frame 8, the wires 11 to 14 can be moved relatively freely in the wire storage space S, and therefore it is also easy to solder the wires 11 to 14 to the circuit board 1 afterwards.

[0029] Figure 51 is a perspective view showing the vicinity of the wire holder 108 of the gear unit 5 in the second embodiment of the present invention in an enlarged manner. In the wire holder 108, a wire insertion slit 126 extending in a direction substantially perpendicular to the direction in which the wires 11 to 14 extend is formed between the first holding piece 23 and the second holding piece 25. In this way, when the wire insertion slit 126 extends in a direction substantially perpendicular to the direction in which the wires 11 to 14 extend, it is difficult for the wires 11 to 14 stored in the wire storage space S to be aligned in the direction in which the wire insertion slit 126 extends, thereby further suppressing the wires 11 to 14 entering the wire storage space from falling off from the wire holder 8.

[0030] Figure 6 1 is a perspective view showing the vicinity of the wire holder 208 of the gear unit 5 in the third embodiment of the present invention in an enlarged manner. In the wire holder 208, a wire insertion slit 226 extending in the X direction is formed between the first holding piece 23 and the second holding piece 25. A protrusion 227 protruding toward the second holding piece 25 facing the first holding piece 23 is formed. In this case, the minimum width of the wire insertion slit 226 is the width between the top of the protrusion 227 of the first holding piece 23 and the second holding piece 25 facing the first holding piece 23, and the minimum width is set to be smaller than the minimum outer diameter of the wires 11 to 14.

[0031] By forming such a protrusion 227, the resistance when inserting the wires 11 to 14 into the wire storage space S becomes only the contact with the protrusion 227, so it is easy to put the wires 11 to 14 into the wire storage space S. In addition, in order to reduce damage or resistance to the wires 11 to 14, the protrusion 227 is preferably formed by a curved surface such as a spherical surface.

[0032] As described above, according to the first aspect of the present invention, there is provided an electric wire holding structure capable of routing electric wires with a simple structure without interfering with the movement of a movable member. Specifically, the electric wire holding structure of the present invention can have the following structure.

[0033] (Structure 1)

[0034] The wire holding structure has at least one wire extending in a manner of crossing the movable part. The at least one wire includes a first portion and a second portion closer to the movable part than the first portion. The wire holding structure also has a wire holding frame for holding the at least one wire between the first portion and the second portion of the at least one wire. The wire holding frame has: a base portion, which is arranged at a position away from the moving area of ​​the movable part in the first direction; and a pair of holding pieces, which extend to opposite sides from each other along a second direction perpendicular to the first direction at a position away from the base portion along the first direction. At least one of the pair of holding pieces is configured to be elastically deformable. A wire storage space for storing the at least one wire is formed between the pair of holding pieces and the base. A wire insertion slit having a minimum width smaller than the minimum outer diameter of the at least one wire is formed between the pair of holding pieces.

[0035] According to such a structure, when the electric wire enters the electric wire storage space through the electric wire insertion slit by elastically deforming the holding piece, the electric wire will not be exposed from the electric wire storage space unless the holding piece is accidentally deformed, so the electric wire can be held between the base of the electric wire holder located at a position away from the moving area of ​​the movable part and the pair of holding pieces. Therefore, the electric wire can be routed without interfering with the movement of the movable part, and the electric wire holding mechanism can be made compact and the number of parts can be reduced.

[0036] (Structure 2)

[0037] In the above-mentioned structure 1, it is preferred that the width of the above-mentioned wire storage space between the above-mentioned pair of retaining pieces and the above-mentioned base along the above-mentioned first direction is not less than the minimum outer diameter of the above-mentioned at least one wire and less than 2 times of the minimum outer diameter. By setting the width of the wire storage space to such a range, the wires can be arranged in the wire storage space and can be easily moved in the wire storage space.

[0038] (Structure 3)

[0039] In the above-mentioned structure 1 or 2, it is preferable that the minimum width of the above-mentioned electric wire insertion slit is configured to allow the above-mentioned at least one electric wire to pass therethrough by press-fitting.

[0040] (Structure 4)

[0041] In any one of the above structures 1 to 3, it is preferred that at least one of the pair of holding pieces is connected to an arm extending along the first direction at a position away from the base along the second direction. Such an arm can increase elasticity, so that the holding piece is easily elastically deformed.

[0042] (Structure 5)

[0043] In any one of the above-mentioned structures 1 to 4, it is preferred that the above-mentioned wire insertion slit extends in a direction intersecting the above-mentioned at least one wire held by the above-mentioned wire holder. According to such a structure, the wires stored in the wire storage space are difficult to be aligned in the direction in which the wire insertion slit extends, thereby preventing the wires entering the wire storage space from falling off from the wire holder.

[0044] (Structure 6)

[0045] In the above-mentioned structure 5, the above-mentioned wire insertion slit may extend in a direction perpendicular to the direction in which the above-mentioned at least one wire held in the above-mentioned wire holder extends. According to such a structure, the wires stored in the wire storage space are more difficult to be aligned in the direction in which the wire insertion slit extends, thereby further suppressing the wires entering the wire storage space from falling off from the wire holder.

[0046] (Structure 7)

[0047] In any one of the above structures 1 to 6, at least one of the pair of retaining pieces may have a protrusion protruding toward the opposing retaining piece. By forming such a protrusion, the resistance when inserting the wire into the wire storage space becomes only the contact with the protrusion, so it is easy to put the wire into the wire storage space.

[0048] (Structure 8)

[0049] In the above-mentioned structure 7, in order to reduce damage to the electric wire and resistance, it is preferable that the above-mentioned protrusion is formed of a curved surface.

[0050] According to a second aspect of the present invention, there is provided an electronic device having the above-mentioned electric wire holding structure.

[0051] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can of course be implemented in various different forms within the scope of the technical concept.

[0052] This application claims priority based on Japanese Patent Application No. 2022-103187 filed on June 28, 2022. The disclosure of the application is incorporated herein by reference in its entirety.

[0053] Industrial Applicability

[0054] The present invention is suitable for use in a structure for fixing electric wires near a movable part.

[0055] Description of symbols

[0056] 1: circuit board; 5: gear unit; 6: shaft; 7: prism rod (movable part); 8, 108, 208: wire holder; 11-14: wire; 13A: first part; 13B: second part; 21: base; 22: first arm; 23: first retaining piece; 24: second arm; 25: second retaining piece; 26, 126, 226: wire insertion slit; 227: protrusion; S: wire storage space.

Claims

1. An electric wire holding structure, comprising: at least one electric wire extending in a manner to cross the movable member and including a first portion and a second portion closer to the movable member than the first portion; and an electric wire holder for holding the at least one electric wire between the first portion and the second portion of the at least one electric wire, The wire holder has: a base portion disposed at a position away from a movement region of the movable member in a first direction; and a pair of holding pieces extending in opposite directions from each other along a second direction perpendicular to the first direction at positions away from the base along the first direction, At least one of the pair of holding pieces is configured to be elastically deformable. A wire storage space for storing the at least one wire is formed between the pair of retaining pieces and the base. An electric wire insertion slit having a minimum width smaller than a minimum outer diameter of the at least one electric wire is formed between the pair of holding pieces.

2. The electric wire holding structure according to claim 1, wherein: A width of the wire storage space between the pair of holding pieces and the base along the first direction is not less than a minimum outer diameter of the at least one wire and less than twice the minimum outer diameter.

3. The electric wire holding structure according to claim 1, wherein: The minimum width of the electric wire insertion slit is configured to allow the at least one electric wire to pass therethrough by press-fitting.

4. The electric wire holding structure according to claim 1, wherein: At least one of the pair of holding pieces is connected to an arm portion extending along the first direction at a position away from the base portion along the second direction.

5. The electric wire holding structure according to claim 1, wherein: The electric wire insertion slit extends in a direction intersecting the at least one electric wire held by the electric wire holder.

6. The electric wire holding structure according to claim 5, wherein: The electric wire insertion slit extends in a direction perpendicular to a direction in which the at least one electric wire held by the electric wire holder extends.

7. The electric wire holding structure according to claim 1, wherein: At least one of the pair of holding pieces has a protrusion that protrudes toward the opposing holding piece.

8. The electric wire holding structure according to claim 7, wherein: The protrusion is formed by a curved surface.

9. An electronic device, wherein: This electronic device has the electric wire holding structure according to any one of claims 1 to 8.

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