CN209882381U - Electronic device and vehicle-mounted information device - Google Patents
Electronic device and vehicle-mounted information device Download PDFInfo
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- CN209882381U CN209882381U CN201920516737.7U CN201920516737U CN209882381U CN 209882381 U CN209882381 U CN 209882381U CN 201920516737 U CN201920516737 U CN 201920516737U CN 209882381 U CN209882381 U CN 209882381U
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Abstract
An electronic apparatus and a vehicle-mounted information apparatus, which can improve the operability without enlarging an opening part for passing a flexible flat cable. The FFC (30) has: a corrugated portion formed by bending 3 times; and a starting end bent portion (33), wherein the starting end bent portion (33) is formed by bending a portion between the starting end portion (31) connected to the first substrate (11) and the corrugated portion. In the FFC (30), the first flat section (34) among the first flat section (34), the second flat section (36), the third flat section (38), and the end flat section (40) has the longest length, the lengths of the respective flat sections between the first flat section (34) and the end flat section (40) become gradually shorter, and the length of the end flat section (40) becomes the shortest.
Description
Technical Field
The present invention relates to an electronic device and a vehicle-mounted information device including a flexible flat cable (hereinafter, referred to as "FFC").
Background
The FFC of patent document 1 is a member for electrically connecting an electronic device to a substrate placed below the electronic device in a stacked manner, and has a corrugated portion folded at one end. One end of the FFC on the corrugated portion side is vertically connected to a substrate disposed below the electronic device in an overlapping manner. The other end of the FFC is inserted through an opening formed in the lower surface of the electronic device and connected to a substrate housed in the electronic device.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2018-18983
In the conventional electronic device configured as described above, the operator connects the FFC to the substrate in the electronic device through the opening of the electronic device. Therefore, if the opening is enlarged in order to facilitate the FFC to pass through the opening of the electronic device, there is a technical problem that the performance of the electronic device in terms of EMC (Electromagnetic Compatibility) is degraded. On the other hand, if the opening is made smaller in order to improve the EMC performance of the electronic device, there is a problem that the workability of inserting the FFC into the opening is deteriorated.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to improve operability without increasing an opening through which a flexible flat cable passes.
The utility model discloses an electronic equipment includes: a flexible flat cable electrically connecting the first substrate and the second substrate; a first housing for the first substrate to be disposed; and a second housing having an opening through which the flexible flat cable passes and assembled to the first housing in a state where the second substrate is accommodated in a direction perpendicular to the first substrate, the flexible flat cable having a corrugated portion and a start-end bent portion, wherein the corrugated portion is bent n times, n being an integer of 3 or more, the start-end bent portion is formed by bending a portion connected between the start-end portion of the first substrate and the corrugated portion, the first bent portion on the start-end portion side of the corrugated portion is set as a first bent portion, the last bent portion on the terminal portion side connected to the second substrate is set as an nth bent portion, a flat surface portion from the start-end bent portion to the first bent portion is set as a first flat surface portion, a flat surface portion from the (n-1) th bent portion to the nth bent portion is set as an nth flat surface portion, and a flat surface portion from the nth bent portion to the terminal portion is set as a terminal flat surface portion, the length from the first flat portion to the first flat portion among the end flat portions is longest, the length of each flat portion between the first flat portion and the end flat portion becomes gradually shorter, and the length of the end flat portion is shortest.
Furthermore, the utility model discloses an electronic equipment includes: a flexible flat cable electrically connecting the first substrate and the second substrate; a first housing for the first substrate to be disposed; and a second housing having an opening through which the flexible flat cable is passed and assembled to the first housing in a state where the second substrate is accommodated in a direction perpendicular to the first substrate, the flexible flat cable having a corrugated portion and a start-end bent portion, wherein the corrugated portion is bent n times, n being an integer of 3 or more, the start-end bent portion is formed by bending a portion connected between a start end portion of the first substrate and the corrugated portion, an initial bent portion on the start end portion side of the corrugated portion is set as a first bent portion, a last bent portion on a terminal end portion side connected to the second substrate is set as an nth bent portion, a planar portion from the start-end bent portion to the first bent portion is set as a first planar portion, a planar portion from an (n-1) th bent portion to the nth bent portion is set as an nth planar portion, and a planar portion from the nth bent portion to the terminal end portion is set as a terminal planar portion, in a state where each of the flat portions from the first flat portion to the end flat portion is folded in the direction of gravity, the first bent portion to the nth bent portion are located at positions outside of the other odd-numbered bent portions, and the second bent portion is located at positions outside of the other even-numbered bent portions.
The length of the first flat portion of the flexible flat cable is twice or more the length of the second flat portion, and the length of the flat portion from the leading end portion to the leading end bent portion is shorter than the length of the second flat portion.
The second housing has an abutting portion in a shape in which an edge of the opening portion is bent, and the abutting portion abuts against the first flat surface portion of the flexible flat cable in a state in which the terminal portion is connected to the second substrate.
The direction from the first bent portion to the leading end bent portion of the flexible flat cable is the same as the direction from the n-th bent portion to the terminal portion, the first substrate has a leading end connecting portion to which the leading end portion is connected, the leading end connecting portion is located closer to the leading end bent portion than the first bent portion in the planar direction of the first substrate, and the second substrate has a terminal end connecting portion to which the terminal portion is connected, the terminal end connecting portion is located closer to the leading end bent portion than the first bent portion in the planar direction of the first substrate.
The end connecting portion of the second substrate is located closer to the first bent portion than the start connecting portion in the plane direction of the first substrate.
Furthermore, the utility model discloses an on-vehicle information equipment has used aforementioned electronic equipment.
According to the present invention, even if the flexible flat cable is deformed by its own weight during assembly, the projection distance of the corrugated portion does not change, and therefore, the opening portion of the second housing through which the corrugated portion passes need not to be increased. Further, since the corrugated portion of the flexible flat cable is self-standing, the operation of inserting the corrugated portion through the opening portion of the second housing is facilitated, and the operability is improved.
Drawings
Fig. 1 is a plan view showing a configuration example of a vehicle-mounted information apparatus according to embodiment 1.
Fig. 2 is a cross-sectional view of the in-vehicle information apparatus according to embodiment 1 taken along line a-a of fig. 1.
Fig. 3 is a perspective view showing a configuration example of the in-vehicle information apparatus according to embodiment 1.
Fig. 4 is a perspective view showing a state in which the first housing and the second housing of the in-vehicle information apparatus according to embodiment 1 are disassembled.
Fig. 5 is a diagram illustrating an assembly procedure of the in-vehicle information device according to embodiment 1.
Fig. 6A and 6B are perspective views showing a configuration example of the FFC according to embodiment 1.
Fig. 7 is a side view showing a structural example of the FFC according to embodiment 1.
Fig. 8 is a side view showing a modification of the FFC according to embodiment 1.
(symbol description)
1 an in-vehicle information device (electronic device); 10a first housing; 10a opening part; 11a first substrate; 11a start connection part; 12 a liquid crystal display; 13 a touch panel; 14 a protective cover; 20a second housing; 20a opening part; 20b an abutting portion; 21a second substrate; 21a, 21b, 21c end connections; 30. 50 FFC; 31. 51 starting end part; 32. 52 a start end plane part; 33. 53 starting end bending part; 34. 54 a first planar portion; 35. 55 a first bend; 36. 56 a second planar portion; 37. 57 a second bent portion; 38. 58 a third planar portion; 39. 59 a third bent portion; 40. 64 terminal flat portions; 41. 65 terminal portion; 60 a fourth flat surface portion; 61 a fourth bending part; 62 a fifth planar segment; 63 a fifth bending part.
Detailed Description
Embodiment mode 1
Fig. 1 is a plan view showing a configuration example of a vehicle-mounted information apparatus 1 according to embodiment 1. Fig. 2 is a sectional view of the in-vehicle information apparatus 1 according to embodiment 1 cut along the line a-a in fig. 1. Fig. 3 is a perspective view showing a configuration example of the in-vehicle information apparatus 1 according to embodiment 1. Fig. 4 is a perspective view showing a state in which the first casing 10 and the second casing 20 of the in-vehicle information apparatus 1 according to embodiment 1 are disassembled. In fig. 3 and 4, the upper surface of the second casing 20 is not shown.
The in-vehicle information apparatus 1 is an electronic apparatus that is mounted in a vehicle and has a navigation function, an audio function, or the like. The vehicle-mounted information apparatus 1 is configured by assembling a cover-shaped first housing 10 and a box-shaped second housing 20. The first case 10 and the second case 20 are made of a metal plate or the like.
A liquid crystal display 12 is provided in an opening 10a formed on the front surface side of the first casing 10, and a touch panel 13 and a protective cover 14 are provided on a display screen of the liquid crystal display 12. In the first casing 10, a first substrate 11 for controlling the operation of the liquid crystal display 12 is provided on the rear surface side of the liquid crystal display 12 in parallel with the liquid crystal display 12. In embodiment 1, the lateral direction of the liquid crystal display 12 and the first substrate 11 is defined as the X-axis direction, the vertical direction is defined as the Y-axis direction, and the direction perpendicular to the liquid crystal display 12 and the first substrate 11 is defined as the Z-axis direction. In a state where the in-vehicle information apparatus 1 is mounted on the vehicle, a direction opposite to the Y-axis direction becomes a gravity direction. In contrast, when the vehicle-mounted information apparatus 1 is assembled, the direction opposite to the Z-axis direction is the gravity direction.
The second housing 20 accommodates a second board 21 for realizing a navigation function, an audio function, and the like of the in-vehicle information apparatus 1. The second substrate 21 is accommodated in the second housing 20 so as to face a direction perpendicular to the first substrate 11 accommodated in the first housing 10. The first substrate 11 housed in the first casing 10 and the second substrate 21 housed in the second casing 20 are electrically connected by the FFC 30, and can receive and transmit signals. An opening 20a is formed in the second casing 20 for the FFC 30 to pass through.
The FFC 30 is a belt-like member in which a plurality of conductors are covered with an insulator, and has flexibility. Both ends of the FFC 30 are the start end portion 31 and the end portion 41 where the conductor is exposed. The start end 31 of the FFC 30 is electrically connected to the start end connection portion 11a, which is a connector mounted on the first substrate 11. The end 41 of the FFC 30 is electrically connected to an end connection portion 21a, which is a connector mounted on the second substrate 21.
The FFC 30 includes: a corrugated portion bent n times (n is an integer of 3 or more); and a starting bent portion 33, the starting bent portion 33 being formed by bending a portion between the starting portion 31 connected to the first substrate 11 and the corrugated portion. The FFC 30 of embodiment 1 has a corrugated portion that is bent three times at the first bent portion 35, the second bent portion 37, and the third bent portion 39. The first bend on the leading end 31 side of the corrugated portion is referred to as a first bend 35, and the last bend on the terminal end 41 side is referred to as a third bend 39. Further, a flat surface portion from the starting end portion 31 to the starting bent portion 33 is defined as a starting flat surface portion 32, a flat surface portion from the starting bent portion 33 to the first bent portion 35 is defined as a first flat surface portion 34, a flat surface portion from the first bent portion 35 to the second bent portion 37 is defined as a second flat surface portion 36, and a flat surface portion from the second bent portion 37 to the third bent portion 39 is defined as a third flat surface portion 38. A flat surface portion from the third bent portion 39 to the end portion 41 is an end flat surface portion 40.
When the first flat surface portion 34 is not in contact with any position in a state where the FFC 30 is connected to the first substrate 11 and the second substrate 21, the first flat surface portion 34 is likely to vibrate in the direction indicated by the arrow B in fig. 2. When the first flat portion 34 vibrates in the direction of arrow B, it repeatedly collides with the opening 20a, that is, the edge of the metal plate, the edge of the second substrate 21, and the like, and may break. Further, noise is generated at the time of repeated collisions. Therefore, in order to prevent the first flat surface portion 34 from vibrating, it is preferable that the first flat surface portion 34 always be in contact with the contact portion 20b as the edge of the opening portion 20a as shown in fig. 2. That is, it is preferable that the positional relationship between the abutting portion 20b and the terminal connecting portion 21a is determined so that the first flat surface portion 34 abuts against the abutting portion 20 b. With the above configuration, the first plane part 34 is stretched like a string to be in a tensioned state, and therefore, does not vibrate in the direction of the arrow B, and can prevent disconnection and noise. In fig. 2, the abutting portion 20b is not an edge of the metal plate, but a portion where an edge of the opening portion 20a is bent, and therefore, disconnection of the first flat portion 34 is further prevented.
Fig. 5 is a diagram illustrating an assembly procedure of the in-vehicle information apparatus 1 according to embodiment 1.
As shown in fig. 5, the first casing 10 is disposed such that the first substrate 11 faces upward. Further, the leading end portion 31 of the FFC 30 formed with the leading end folded portion 33 and the bellows portion is connected to the leading end connecting portion 11a of the first substrate 11. Further, since the assembly direction indicated by the arrow D in fig. 5 is also the gravity direction, the bellows portion of the FFC 30 may descend by its own weight with the leading end bent portion 33 as a fulcrum. Fig. 5 shows the FFC 30 in a state of being lowered by its own weight by a two-dot chain line.
Next, the second housing 20 is assembled to the first housing 10 at the opening 20a side in the assembling direction indicated by the arrow D in fig. 5. When the second casing 20 is assembled to the first casing 10, the bellows portion of the FFC 30 enters the second casing 20 through the opening portion 20 a. Since the bellows portion can stand independently, the operator does not need to pass through the opening 20a while supporting the bellows portion, thereby improving operability. Further, the end portion 41 of the FFC 30 passing through the opening portion 20a is connected to the end connection portion 21a of the second substrate 21.
Next, the FFC 30 will be described in detail.
Fig. 6A and 6B are perspective views showing a configuration example of the FFC 30 according to embodiment 1. Fig. 7 is a side view showing a configuration example of the FFC 30 according to embodiment 1. Here, the length of the leading end flat surface portion 32 is a length from the leading end portion 31 to the leading end bent portion 33. The length of the first flat surface portion 34 is from the initial bent portion 33 to the first bent portion 35. The length of the second flat portion 36 is from the first bent portion 35 to the second bent portion 37. The length of the third flat surface portion 38 is the length from the second folded portion 37 to the third folded portion 39. The length of the end flat portion 40 is the length from the third bent portion 39 to the end portion 41. Of the first flat portion 34, the second flat portion 36, the third flat portion 38, and the end flat portion 40, the first flat portion 34 is the longest, the second flat portion 36 and the third flat portion 38 are successively shorter, and the end flat portion 40 is the shortest.
Further, a distance of a portion from the first bent portion 35 to the distal end portion 41 constituting the bellows portion, which is projected from the direction of gravity of the arrow D onto a vertical plane, is defined as a projection distance E.
When the vehicle-mounted information apparatus 1 is assembled, the size (indicated by arrow C in fig. 4) of the opening 20a through which the corrugated portion passes needs to be larger than the projection distance E. As described above, the lengths of the second flat surface portion 36, the third flat surface portion 38, and the terminal flat surface portion 40 constituting the corrugated portion become gradually shorter from the first folded portion 35 to the terminal portion 41. Thus, even if the bellows portion is lowered in the direction of gravity indicated by the arrow D with the leading end bent portion 33 as a fulcrum and deformed by its own gravity when the in-vehicle information apparatus 1 is assembled, the third bent portion 39 and the like of the bellows portion do not fly out of the projection distance E. Therefore, the opening 20a can be made as the minimum necessary size, and the EMC performance of the in-vehicle information apparatus 1 can be maintained.
When the operator inserts the bellows portion through the opening 20a while pulling the distal end portion 41 of the FFC 30 in the direction of the arrow F when assembling the in-vehicle information apparatus 1, the bellows portion becomes long, and the projection distance E becomes short. In this case, the opening 20a can be made smaller than the size indicated by the arrow C in fig. 4, so that the EMC performance of the in-vehicle information apparatus 1 is improved.
In the FFC 30, the length of the first flat portion 34 is preferably twice or more the length of the second flat portion 36, and the length of the leading end flat portion 32 is preferably shorter than the length of the second flat portion 36. By lengthening the length of the first flat portion 34 to be twice or more of the longest second flat portion 36 in the bellows portion, the rigidity of the first flat portion 34 becomes minimum, and thus the flexure becomes easiest. Thus, when the operator pulls the distal end portion 41 of the FFC 30 in the direction of the arrow F when assembling the in-vehicle information apparatus 1, the first flat surface portion 34 is bent before the bellows portion becomes long, and therefore, the first flat surface portion 34 is easily brought into contact with the contact portion 20b, and operability can be improved. Further, by making the length of the leading end flat portion 32 smaller than the second flat portion 36, the rigidity of the leading end flat portion 32 is increased. Thus, even when the first flat surface portion 34 is deflected, the start-end flat surface portion 32 is not deflected, and therefore the start-end portion 31 is not detached from the start-end connecting portion 11 a.
As shown in fig. 7, in the FFC 30, the direction G from the first folded portion 35 toward the starting folded portion 33 is the same as the direction H from the third folded portion 39 toward the terminal portion 41. The start connecting portion 11a and the end connecting portion 21a are located closer to the start bent portion 33 than the first bent portion 35. Accordingly, when the operator pulls the terminal portion 41 toward the terminal connection portion 21a, i.e., in the direction H, at the time of connecting the terminal portion 41 and the terminal connection portion 21a, the first flat portion 34 is bent, and therefore, even if the FFC 30 is pulled, the start end portion 31 does not fall off from the start end connection portion 11 a. On the other hand, when the end connection portion 21b is located on the opposite side of the start-end bent portion 33 so as to sandwich the first bent portion 35 as in the end connection portion 21b of fig. 7, the end portion 41 is pulled in the opposite side of the direction H and connected to the end connection portion 21 b. When the terminal portion 41 is pulled in the direction opposite to the direction H, the bellows portion is lengthened, so that the first flat portion 34 is pulled in the direction opposite to the direction G, and therefore, the leading end portion 31 is easily detached from the leading end connecting portion 11 a.
The end connection portion 21a is located closer to the first bent portion 35 than the start connection portion 11a in the planar direction of the first board 11, that is, in the same direction as the arrow G, H in fig. 7. Accordingly, in a state where the start end portion 31 is connected to the start end connection portion 11a and the end portion 41 is connected to the end connection portion 21a, a load is not applied to the FFC 30, and the start end portion 31 and the end portion 41 do not fall off from the start end connection portion 11a and the end connection portion 21 a. On the other hand, when the terminal connecting portion 21c is located on the opposite side of the first bent portion 35 so as to sandwich the start connecting portion 11a in the plane direction of the first substrate 11 as in the terminal connecting portion 21c of fig. 7, the terminal portion 41 is stretched in the above-described direction H and connected to the terminal connecting portion 21c at a position passing through the start bent portion 33. Therefore, the first flat surface portion 34 is warped to apply a load to the leading bent portion 33, and therefore the leading end portion 31 is easily detached from the leading end connecting portion 11 a.
As described above, the FFC 30 of embodiment 1 has: a corrugated portion formed by bending 3 times; and a starting bent portion 33, the starting bent portion 33 being formed by bending a portion between the starting portion 31 and the bellows portion connected to the first substrate 11. In the FFC 30, the first flat portion 34 among the first flat portion 34, the second flat portion 36, the third flat portion 38, and the end flat portion 40 has the longest length, the lengths of the respective flat portions between the first flat portion 34 and the end flat portion 40 become gradually shorter, and the length of the end flat portion 40 becomes the shortest. With the above configuration, when the vehicle-mounted information apparatus 1 is assembled, even if the FFC 30 is deformed by its own weight, the projected distance E of the bellows portion does not change, and therefore, it is not necessary to increase the opening portion 20a of the second housing 20 through which the bellows portion passes. Further, since the bellows portion of the FFC 30 can stand up by itself, the operation of inserting the bellows portion through the opening portion 20a of the second casing 20 is facilitated, and the operability is improved.
The first flat portion 34 of the FFC 30 according to embodiment 1 is twice or more as long as the second flat portion 36, and the length from the starting end portion 31 to the starting end flat portion 32 of the starting bent portion 33 is shorter than the length of the second flat portion 36. With the above configuration, when the vehicle-mounted information apparatus 1 is assembled, the leading end flat portion 32 is less likely to be bent, and the leading end portion 31 is less likely to fall off from the leading end connecting portion 11 a.
The second housing 20 of embodiment 1 has a contact portion 20b having a shape in which the edge of the opening portion 20a is bent, and the first flat surface portion 34 of the FFC 30 in a state in which the distal end portion 41 is connected to the second substrate 21 is in contact with the contact portion 20 b. With the above configuration, even if the vehicle vibrates, the first flat surface portion 34 does not vibrate because it abuts against the abutting portion 20b, and therefore, disconnection and noise can be prevented.
In the FFC 30 according to embodiment 1, the direction G from the first folded portion 35 to the leading folded portion 33 is the same as the direction H from the third folded portion 39 to the terminal portion 41. The first case 10 has a leading end connecting portion 11a, and the leading end connecting portion 11a is located closer to the leading end bent portion 33 than the first bent portion 35 in the planar direction of the first case 10. The second housing 20 has a terminal connecting portion 21a, and the terminal connecting portion 21a is located closer to the first bent portion 35 than the first bent portion 33 in the planar direction of the first housing 10. With the above configuration, the leading end 31 is less likely to fall off from the leading end connecting portion 11 a.
Further, the end connection portion 21a of the second case 20 according to embodiment 1 is located closer to the first bent portion 35 than the start end connection portion 11a in the planar direction of the first case 10. With the above configuration, the leading end 31 is less likely to fall off from the leading end connecting portion 11 a.
Here, a modified example of the FFC 30 will be described.
Fig. 8 is a side view showing an FFC50 according to a modification of embodiment 1.
The FFC50 has a corrugated portion that is folded five times at the first folded portion 55, the second folded portion 57, the third folded portion 59, the fourth folded portion 61, and the fifth folded portion 63. Further, the FFC50 has a starting bent portion 53, and the starting bent portion 53 is formed by bending a portion between the starting portion 51 connected to the starting connecting portion 11a of the first substrate 11 and the corrugated portion. The first bend on the leading end 51 side of the corrugated portion is referred to as a first bend 55, and the last bend on the terminal end 65 side connected to the terminal connecting portion 21a of the second substrate 21 is referred to as a fifth bend 63. A flat surface portion from the starting end portion 51 to the starting end bent portion 53 is set as a starting end flat surface portion 52. A flat portion from the starting bent portion 53 to the first bent portion 55 is defined as a first flat portion 54, a flat portion from the first bent portion 55 to the second bent portion 57 is defined as a second flat portion 56, a flat portion from the second bent portion 57 to the third bent portion 59 is defined as a third flat portion 58, a flat portion from the third bent portion 59 to the fourth bent portion 61 is defined as a fourth flat portion 60, and a flat portion from the fourth bent portion 61 to the fifth bent portion 63 is defined as a fifth flat portion 62. A flat surface portion from the fifth bent portion 63 to the end portion 65 is an end flat surface portion 64.
The shape of the FFC50 in a state before the FFC50 is connected to the first substrate 11 and the second substrate 21 will be described. Here, when the in-vehicle information apparatus 1 is assembled, each flat portion from the first flat portion 54 to the end flat portion 64 of the FFC50 is in a state of being folded in the direction of gravity indicated by the arrow D. In the above state, of the odd-numbered first bent portion 55, the third bent portion 59, and the fifth bent portion 63 of the bellows portion, the first bent portion 55 is located on the outermost side, and the third bent portion 59 and the fifth bent portion 63 are located on the inner side of the first bent portion 55. In the even-numbered folds of the corrugated portion, that is, the second fold portion 57 and the fourth fold portion 61, the second fold portion 57 is located at the outermost position, and the fourth fold portion 61 is located at the inner side of the second fold portion 57. Preferably, the terminal portion 65 is located inward of the even-numbered folded portion and inward of the odd-numbered folded portion.
With the above configuration, even if the bellows portion is deformed by its own weight by being lowered in the direction of gravity indicated by the arrow D with the start-end bent portion 53 as a fulcrum when the vehicle-mounted information device 1 is assembled, the third bent portion 59 and the like of the bellows portion do not fly out of the projection distance E. Therefore, the EMC performance of the in-vehicle information apparatus 1 can be maintained without enlarging the opening portion 20a of the second housing 20. Further, since the bellows portion of the FFC50 can stand by itself, the operation of inserting the bellows portion through the opening portion 20a of the second casing 20 is facilitated, and the operability is improved.
In the FFC50, as in the FFC 30, the length of the first flat surface portion 54 is also twice or more the length of the second flat surface portion 56, and by setting the length of the start-end flat surface portion 52 shorter than the length of the second flat surface portion 56, the start-end flat surface portion 52 is less likely to be bent, and the start-end portion 51 is less likely to fall off from the start-end connecting portion 11.
Further, by bringing the first flat surface portion 54 into contact with the abutting portion 20b at all times, disconnection and vibration can be prevented when the vehicle vibrates.
Further, the direction from the first bent portion 55 to the leading bent portion 33 is the same as the direction from the fifth bent portion 63 to the terminal portion 65, and the leading end portion 51 is less likely to fall off from the leading end connecting portion 11a by positioning the leading end connecting portion 11a and the terminal end connecting portion 21a closer to the leading bent portion 53 than the first bent portion 55.
Further, by positioning the terminal connecting portion 21a of the second case 20 on the first bent portion 55 side with respect to the start connecting portion 11a, the start end portion 51 is less likely to fall off from the start connecting portion 11 a.
In the above description, the FFCs 30 and 50 are applied to the in-vehicle information apparatus 1 having the navigation function, the audio function, and the like, but may be applied to an electronic apparatus other than the in-vehicle apparatus.
In the above description, as shown in fig. 2, the FFC 30 or 50 is disposed on the in-vehicle information apparatus 1 such that the first bent portion 35 or 55 is positioned above the leading bent portion 33 or 53, but conversely, the FFC 30 or 50 may be disposed on the in-vehicle information apparatus 1 such that the first bent portion 35 or 55 is positioned below the leading bent portion 33 or 53.
The utility model discloses can warp the arbitrary constitutional element of embodiment in this utility model's within range, or omit the arbitrary constitutional element of embodiment.
Claims (11)
1. An electronic device, comprising:
a flexible flat cable electrically connecting the first substrate and the second substrate;
the first shell is used for arranging the first substrate; and
a second housing having an opening through which the flexible flat cable passes and assembled to the first housing in a state where the second substrate is accommodated in a direction perpendicular to the first substrate,
the flexible flat cable has: a corrugated portion bent n times, n being an integer of 3 or more; and a start end bent portion formed by bending a portion between the start end portion connected to the first substrate and the corrugated portion,
when a first bend portion on the start end portion side of the bellows portion is set as a first bend portion, a last bend portion on a terminal portion side connected to the second substrate is set as an nth bend portion, a flat surface portion from the start end bend portion to the first bend portion is set as a first flat surface portion, a flat surface portion from an (n-1) th bend portion to the nth bend portion is set as an nth flat surface portion, and a flat surface portion from the nth bend portion to the terminal portion is set as a terminal flat surface portion, a length from the first flat surface portion to the first flat surface portion in the terminal flat portion is longest, a length of each flat surface portion between the first flat surface portion and the terminal flat surface portion is gradually shortened, and a length of the terminal flat surface portion is shortest.
2. The electronic device of claim 1,
the length of the first flat portion of the flexible flat cable is two times or more the length of the second flat portion, and the length of the flat portion from the leading end portion to the leading end bent portion is shorter than the length of the second flat portion.
3. The electronic device of claim 1,
the second housing has an abutting portion in a shape in which an edge of the opening portion is bent, and the abutting portion abuts against the first flat surface portion of the flexible flat cable in a state in which the terminal portion is connected to the second substrate.
4. The electronic device of claim 1,
the direction from the first bent portion to the leading end bent portion of the flexible flat cable is the same as the direction from the nth bent portion to the terminal portion,
the first substrate has a starting end connecting portion to which the starting end portion is connected, the starting end connecting portion being located closer to the starting end bent portion than the first bent portion in a planar direction of the first substrate,
the second substrate has a terminal connecting portion to which the terminal portion is connected, and the terminal connecting portion is located closer to the initial bent portion than the first bent portion in a plane direction of the first substrate.
5. The electronic device of claim 4,
the end connecting portion of the second substrate is located closer to the first bent portion than the start-end connecting portion in the plane direction of the first substrate.
6. An electronic device, comprising:
a flexible flat cable electrically connecting the first substrate and the second substrate;
the first shell is used for arranging the first substrate; and
a second housing having an opening through which the flexible flat cable passes and assembled to the first housing in a state where the second substrate is accommodated in a direction perpendicular to the first substrate,
the flexible flat cable has: a corrugated portion bent n times, n being an integer of 3 or more; and a start end bent portion formed by bending a portion between the start end portion connected to the first substrate and the corrugated portion,
in the case where a first bent portion on the leading end side of the corrugated portion is set as a first bent portion, a last bent portion on the distal end side connected to the second substrate is set as an nth bent portion, a flat portion from the leading end bent portion to the first bent portion is set as a first flat portion, a flat portion from an (n-1) th bent portion to the nth bent portion is set as an nth flat portion, and a flat portion from the nth bent portion to the distal end portion is set as a distal flat portion,
in a state where each of the flat surface portions from the first flat surface portion to the end flat surface portion is folded in a direction of gravity, the first bent portion from the first bent portion to the nth bent portion is located at a position outside of the other odd-numbered bent portions, and the second bent portion is located at a position outside of the other even-numbered bent portions.
7. The electronic device of claim 6,
the length of the first flat portion of the flexible flat cable is two times or more the length of the second flat portion, and the length of the flat portion from the leading end portion to the leading end bent portion is shorter than the length of the second flat portion.
8. The electronic device of claim 6,
the second housing has an abutting portion in a shape in which an edge of the opening portion is bent, and the abutting portion abuts against the first flat surface portion of the flexible flat cable in a state in which the terminal portion is connected to the second substrate.
9. The electronic device of claim 6,
the direction from the first bent portion to the leading end bent portion of the flexible flat cable is the same as the direction from the nth bent portion to the terminal portion,
the first substrate has a starting end connecting portion to which the starting end portion is connected, the starting end connecting portion being located closer to the starting end bent portion than the first bent portion in a planar direction of the first substrate,
the second substrate has a terminal connecting portion to which the terminal portion is connected, and the terminal connecting portion is located closer to the initial bent portion than the first bent portion in a plane direction of the first substrate.
10. The electronic device of claim 9,
the end connecting portion of the second substrate is located closer to the first bent portion than the start-end connecting portion in the plane direction of the first substrate.
11. An in-vehicle information apparatus to which the electronic apparatus of claim 1 or 6 is applied.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018177160A JP7113710B2 (en) | 2018-09-21 | 2018-09-21 | Electronic equipment and in-vehicle information equipment |
| JP2018-177160 | 2018-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209882381U true CN209882381U (en) | 2019-12-31 |
Family
ID=68960409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920516737.7U Active CN209882381U (en) | 2018-09-21 | 2019-04-16 | Electronic device and vehicle-mounted information device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7113710B2 (en) |
| CN (1) | CN209882381U (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57154229U (en) * | 1981-03-20 | 1982-09-28 | ||
| JPH0636620A (en) * | 1992-07-14 | 1994-02-10 | Nec Gumma Ltd | Flexible flat cable |
| JP4255386B2 (en) | 2004-01-06 | 2009-04-15 | アルパイン株式会社 | Electronic device having flexible wiring member |
| JP6650369B2 (en) | 2016-07-28 | 2020-02-19 | 株式会社Ｊｖｃケンウッド | Electronics |
-
2018
- 2018-09-21 JP JP2018177160A patent/JP7113710B2/en active Active
-
2019
- 2019-04-16 CN CN201920516737.7U patent/CN209882381U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020047878A (en) | 2020-03-26 |
| JP7113710B2 (en) | 2022-08-05 |
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