JP6226808B2 - Electronics - Google Patents

Description

  The present invention relates to a connection structure between an electronic device and a plug.

  For example, a micro USB (Universal Serial Bus) standard connector is widely used as a connector that can supply power to a mobile phone. The micro USB connector is highly versatile and can supply power from a mobile battery to a mobile phone, so it can be expected to be used when it is difficult to secure a power source due to natural disasters such as earthquakes, typhoons, and lightning strikes. From such a viewpoint, an electronic device that can supply power using a highly versatile connector such as a micro USB connector has been studied.

  On the other hand, the functions required for the connection structure between the connector and the plug of the electronic device include prevention of plug disconnection, reduction of load (stress) applied to the connector and the plug, ease of plug insertion operation into the connector, so-called “squeezing” Etc. ”. “Squeeze” refers to an operation or action that applies an excessive load to the plug and connector when the plug is connected to the connector.

  Further, with the recent miniaturization of electronic devices, connectors and plugs are very miniaturized, as represented by micro USB connectors, and the strength of the plugs tends to decrease. Furthermore, the structure is simplified for miniaturization, and no locking mechanism is provided to prevent the plug from being pulled out. For this reason, when a load is applied to the connector and the plug due to carrying of an electronic device to which the plug is connected or an inadvertent pulling action of the plug cable, the plug is easily disconnected or the plug and the connector are easily deformed or damaged.

  For example, Patent Document 1 below proposes an electronic device having a structure in which a plug and a device main body are fixed using separate parts such as screws. Patent Document 2 proposes an electronic device having a structure in which a plug removal prevention structure is provided at a position protruding from the outermost shape of the device body. Patent Document 3 proposes an electronic device having a structure in which a connecting portion of a plug connected to a connector is housed in the device main body, and only the plug cable is pulled out from the main body.

Japanese Patent No. 4842463 JP-A-7-220806 JP 2009-093958 A

  As described above, in the conventional electronic device plug connection structure, when a load is applied to the connector and the plug by carrying the electronic device to which the plug is connected or by inadvertently pulling the plug cable, There is a problem that the plug and connector are likely to be deformed or damaged.

  Further, with the configuration of Patent Document 1, it is not possible to easily increase the number of parts and to perform plug insertion / extraction operations. In the configuration of Patent Document 2, it is necessary to operate so as to avoid the disconnection prevention structure when the plug is inserted / removed, and there is a problem that the plug insertion / extraction operability deteriorates. In Patent Document 3, it is necessary to disassemble the device body when a plug is inserted and removed, and this also makes it difficult to perform the plug insertion and removal operation.

  SUMMARY An advantage of some aspects of the invention is that it provides an electronic device capable of preventing a plug from being pulled out and reducing a load on the plug.

Electronic device according to the present onset Ming, a plug connection opening provided in the apparatus main body, and a connector disposed at the back of the plug connecting opening, to the connector from the entrance of the plug connecting opening And a plug sliding portion that guides the plug inserted into the plug connection opening to the connector, and the plug sliding portion moves the mold portion of the plug into the plug sliding portion. A plug body guide portion that guides the inside of the plug portion, and the inner periphery of the plug body guide portion has a gap between the plug body guide portion and the inserted mold portion of the plug. and resulting size, when the terminal portion of the plug inserted into the plug connecting opening is connected to the connector, also a state in which a part of the mold portion of the plug is inserted into the device body It is.

  According to the present invention, when the terminal portion of the plug inserted into the plug connection opening is connected to the connector, a part of the mold portion of the plug is inserted into the device body, so that “squeezing” is Thus, the plug can be prevented from coming off and the load on the plug can be reduced.

It is a perspective view which shows the structure of the electronic device which concerns on embodiment of this invention. It is an enlarged view of the opening part for plug connection which the electronic device which concerns on embodiment of this invention has. It is a perspective view of the board | substrate which comprises the electronic device which concerns on embodiment of this invention. It is a perspective view of the housing | casing lower cover which comprises the electronic device which concerns on embodiment of this invention. It is an enlarged view of the part which comprises the opening part for plug connection in a housing | casing lower cover. It is a perspective view of the plug connected to the electronic device which concerns on embodiment of this invention. It is a 5th page figure of the electronic device which concerns on embodiment of this invention. It is sectional drawing of the electronic device which concerns on embodiment of this invention. FIG. 9 is an enlarged view of a portion corresponding to the plug connection opening in the cross section shown in FIG. 8.

  FIG. 1 is a perspective view showing a configuration of an electronic device 100 according to an embodiment of the present invention. As shown in FIGS. 1 (a) to 1 (c), an electronic device 100 includes a substrate 5 having a connector 2 in a device main body 1 composed of a resin-molded housing upper lid 1A and housing lower lid 1B. It has a housed configuration. Further, as shown in FIGS. 1C and 1D, the device main body 1 is provided with a plug connection opening 9 for connecting the plug 3 to the connector 2. That is, the substrate 5 accommodated in the device main body 1 is disposed so that the connector 2 is located at a position corresponding to the plug connection opening 9. FIG. 2 is an enlarged view of the plug connection opening 9 provided in the electronic device 100 (region A in FIG. 1C).

  3 and 4 are perspective views of the substrate 5 and the housing lower lid 1B, respectively. FIG. 5 is an enlarged view of a portion (region B in FIG. 4) constituting the plug connection opening 9 in the housing lower lid 1B.

  As shown in FIG. 4, the housing lower lid 1 </ b> B is provided with a boss 6, a rib 7, and a snap fit 8 as a fixing structure of the substrate 5. Further, as shown in FIG. 3, the substrate 5 is provided with holes (boss fixing holes) through which the bosses 6 pass at the end portions. In the housing lower lid 1B, the rib 7 is disposed along the outer shape of the substrate 5 in a state where the boss 6 is inserted into the boss fixing hole 5A, and the snap fit 8 is provided at the end of the substrate 5 in that state. It is arranged at the position where it is caught.

  Therefore, by inserting the boss 6 of the housing lower lid 1 </ b> B into the boss fixing hole 5 </ b> A of the substrate 5, the horizontal position of the substrate 5 is fixed so that the outer shape of the substrate 5 follows the rib 7. Further, the position of the substrate 5 in the vertical direction is fixed by the snap fit 8 being hooked on the end of the upper surface of the substrate 5. The boss 6 is provided with a substrate sinking prevention rib 6A that abuts against the lower surface of the substrate 5. The substrate 5 is sandwiched between the substrate sinking prevention rib 6A and the snap fit 8 so that the vertical direction Is prevented from being displaced.

  The ribs 7 along the outer shape of the substrate 5 may also be provided on the housing upper lid 1A side. When the housing upper lid 1A is attached to the housing lower lid 1B, the rib 7 of the housing upper lid 1A comes into contact with the upper surface of the substrate 5, so that the vertical movement of the substrate 5 is restricted, and the substrate 5 snaps. Detachment from the fit 8 is prevented. In addition, the fixing method of the board | substrate 5 is not restricted to said example, For example, the fixing method using inclusions, such as a screw and an adhesive agent, and the fixing method using press-fit and magnetic force may be sufficient.

  FIG. 6 is a perspective view illustrating an example of the plug 3 connected to the electronic device 100. The plug 3 is provided at the tip of the cable 4, and a plug terminal portion 3 </ b> A inserted into the connector 2 protrudes from a plug mold portion 3 </ b> B of the plug 3. The plug mold portion 3B is composed of a plug body 3B1 and a plug boot 3B2 that protects the cable 4. The size (shape and dimensions) of the plug body 3B1 is a size that conforms to a predetermined standard (standard). (The size of the plug mold part 3B in the following description refers to the size of the plug body 3B1). The connector 2 and the plug 3 do not have to have a connection locking mechanism as in the micro USB standard connector structure.

  FIG. 7 is a five-side view illustrating an appearance of the electronic device 100. 8 is a cross-sectional view including the plug connection opening 9 in the electronic apparatus 100, and corresponds to a cross section taken along the line CC in FIG. FIG. 9 is an enlarged cross-sectional view of the plug connection opening 9 and corresponds to a region D in FIG. 7 to 9 show a state in which the plug 3 is inserted into the opening 9 for plug connection.

  Hereinafter, a connection structure between the electronic device 100 and the plug 3 will be described. The electronic device 100 is provided with a plug connection opening 9 for connecting the plug 3 to the connector 2 of the board 5 in the device main body 1, and the connector 2 is located at the back of the plug connection opening 9. doing. That is, the connector 2 is disposed at a position shifted inward from the outermost shape of the device body 1. Therefore, when the plug terminal portion 3A of the plug 3 is connected to the connector 2, a part of the plug body 3B1 of the plug mold portion 3B is inserted into the device body 1 as shown in FIGS. .

  Inside the plug connection opening 9, a plug is inserted between the inlet of the plug connection opening 9 and the connector 2 so that the plug 3 inserted into the plug connection opening 9 is guided to the connector 2. A plug sliding portion 10 for sliding 3 is disposed. The inner periphery of the plug connection opening 9 and the plug sliding portion 10 is slightly larger than the size (standard size) of the plug mold portion 3B of the plug 3. Further, in the present embodiment, the plug sliding portion 10 is configured by a rib 11 (hereinafter referred to as “plug sliding rib”) integrally formed on the housing upper lid 1A and the housing lower lid 1B.

  As shown in FIG. 9, the plug sliding portion 10 (plug sliding rib 11) guides the plug body 3 </ b> B <b> 1 of the plug 3 inserted into the plug connection opening 9 to the inside of the plug sliding portion 10. 10 A of plug parts, the plug terminal guide part 10B which guides the plug terminal part 3A of the plug 3 which reached | attained the back of the plug sliding part 10 to the position of the connector 2, and the back of the opening part 9 for plug connection were inserted. The plug 3 is provided with a plug stop portion 10 </ b> C that stops at an appropriate position where the plug terminal portion 3 </ b> A and the connector 2 are connected (so as not to enter further).

  Further, as shown in FIG. 9, the housing upper lid 1 </ b> A and the housing lower lid 1 </ b> B are provided with ribs 7 that sandwich the vicinity of the connector 2 on the connector 2 or the substrate 5. The rib 7 functions as a holding mechanism that holds the connector 2 or the substrate 5 and thereby fixes the connector 2 at a fixed position.

  As shown in FIG. 5, the plug sliding rib 11 is provided so as to extend in the insertion / removal direction of the plug 3, but the plug stop portion 10 </ b> C is erected vertically to the insertion / removal direction of the plug 3. 5 shows only the housing lower lid 1B, the plug sliding rib 11 is provided on both the housing upper lid 1A and the housing lower lid 1B, and the housing upper lid 1A is used as the housing lower lid. By being attached to 1B, a plug sliding portion 10 that is slightly larger than the outer shape of the plug mold portion 3B is formed as shown in FIG.

  Further, the plug main body guide portion 10A and the plug terminal guide portion 10B are shaped so as to spread outward from the back of the plug sliding portion 10 so that the plug main body 3B1 and the plug terminal portion 3A are guided to specific positions, respectively. It has become. That is, the plug main body guide portion 10A and the plug terminal guide portion 10B have a so-called “leading shape” having a tapered shape.

  When the plug 3 is inserted into the plug connection opening 9, the plug mold portion 3B of the plug 3 is guided to the inside of the plug sliding portion 10 by the plug body guide portion 10A. The plug mold portion 3B inserted inside the plug sliding portion 10 has a posture such that the plug terminal portion 3A faces the connector 2 by sliding the plug body 3B1 along the plug sliding portion 10. It will be corrected. When the plug terminal portion 3A reaches the depth of the plug sliding portion 10, the plug terminal portion 3A is guided toward the connector 2 by the plug terminal guide portion 10B. When the plug terminal portion 3A is inserted into the connector 2, the plug body 3B1 comes into contact with the plug stop portion 10C and the sliding of the plug mold portion 3B is stopped.

  Therefore, the user can easily insert the plug 3 into the connector 2 by inserting the plug 3 into the plug connection opening 9 and sliding the plug mold portion 3B along the plug sliding portion 10. Can be connected. Further, since the plug body 3B1 and the plug terminal portion 3A of the plug 3 are guided to appropriate positions by the plug body guide portion 10A and the plug terminal guide portion 10B, the occurrence of “twisting” can be prevented, and the connector 2 and the plug terminal Damage to the portion 3A can be prevented.

  When the plug terminal portion 3A of the plug 3 is connected to the connector 2 of the electronic device 100, a part of the plug body 3B1 of the plug 3 is inserted into the device body 1. For this reason, a portion to which a load is applied from the outside to the plug 3 connected to the electronic device 100 is limited, so that the load applied to the plug 3 can be reduced. Even if a load is applied to the plug 3, the load is dispersed by the plug sliding portion 10 (plug sliding rib 11) of the device body 1, so that the load applied to the connector 2 and the plug terminal portion 3A is reduced and durable. A highly structured structure. In addition, since an insertion / extraction stroke at the time of plug 3 connection can be provided, an effect of suppressing plug 3 removal can be expected.

  In the present embodiment, the example in which the plug sliding portion 10 is configured by ribs (plug sliding ribs) has been described, but the shape of the plug sliding portion 10 is not limited thereto. Any structure that can correct the posture of the plug body 3B1 of the plug 3 inserted into the plug connection opening 9 may be constituted by, for example, a post (plug sliding post). In this case, it is preferable that the plug sliding post is provided with a portion that functions in the same manner as the plug body guide portion 10A, the plug terminal guide portion 10B, and the plug stop portion 10C.

  Further, when the shape of the plug mold portion 3B of the plug 3 is not vertically symmetrical, the plug 3 is turned upside down if the shapes of the plug connection opening 9 and the plug sliding portion 10 are the same as the plug mold portion 3B. Incorrect insertion can be prevented. Furthermore, by arranging the connector 2 at a position deeper than the outermost shape of the device main body 1, not only the design effect that the connector 2 cannot be seen from the outside but also the effect of preventing foreign matter from entering the connector 2 is achieved. can get.

  Note that the inner peripheral size of the plug connection opening 9 and the plug sliding portion 10 is preferably larger than the size (standard size) of the plug mold portion 3B of the plug 3. If the inner peripheries of the plug connection opening 9 and the plug sliding portion 10 are much larger than the size of the plug mold portion 3B, the effect of correcting the posture of the plug 3 is impaired. If the size is almost the same as that of the plug mold portion 3B, it becomes difficult to insert the plug 3, and the insertion / extraction operability is lowered.

  The plug body guide portion 10A functions to roughly align the plug terminal portion 3A and the connector 2 by correcting the posture of the plug mold portion 3B. The plug terminal guide portion 10B It functions to accurately align the portion 3A and the connector 2. Therefore, it is preferable that the clearance (gap size) between the plug terminal portion 3A and the plug terminal guide portion 10B is smaller than the clearance between the plug body 3B1 and the plug body guide portion 10A.

  The sizes of the plug connection opening 9 and the plug sliding portion 10 and the sizes of the plug body guide portion 10A and the plug terminal guide portion 10B of the plug sliding portion 10 take into account variations in component manufacturing and component assembly during mass production. Thus, it is preferable to set the size appropriately.

  Further, as the structure of the plug 3 connected to the electronic device 100 of the present embodiment, as shown in the example of FIG. 6, a light in which the direction in which the cable 4 is pulled out from the plug 3 is perpendicular to the insertion / extraction direction of the plug 3 An angle type is preferable, and the plug 3 can be more effectively prevented from coming off.

  Furthermore, by forming the plug sliding portion 10 with the plug sliding rib 11 (or plug sliding post) integrally molded with the housing upper lid 1A and the housing lower lid 1B, an increase in the number of parts can be suppressed. At the same time, the device main body 1 can be reduced in size. In addition, when the housing upper lid 1A and the housing lower lid 1B are used as recycled resources, there is an advantage that the product does not need to be disassembled / separated and can be easily fragmented and crushed.

  In the present embodiment, the plug 2 insertion / extraction stroke (the length of the plug sliding portion 10) is ensured by shifting the position of the connector 2 from the surface of the device body 1 to the inside. The insertion / extraction stroke of the plug 3 may be secured by shifting the portion 9 from the surface of the device main body 1 to the outside (the plug connection opening 9 protrudes from the surface of the device main body 1). In the present embodiment, the example in which the plug 3 insertion / extraction direction is parallel to the surface of the substrate 5 is shown. However, the connector 2 is erected on the substrate 5, and the plug 3 insertion / extraction direction is The present invention may be applied vertically, and the present invention is also applicable to the electronic device 100 having such a configuration. Further, in the above description, the micro USB standard is exemplified as an example of the standard of the connector 2 and the plug 3, but the application of the present invention is not limited to this, and can be widely applied to plug connection structures of all standards.

  In the present invention, the embodiments can be appropriately modified and omitted within the scope of the invention.

  100 electronic device, 1 device body, 1A housing upper lid, 1B housing lower lid, 2 connector, 3 plug, 3A plug terminal, 3B plug mold, 3B1 plug body, 3B2 plug boot, 4 cable, 5 substrate, 5A Boss fixing hole, 6 Boss, 6A Substrate sinking prevention rib, 7 Rib, 8 Snap fit, 9 Plug connection opening, 10 Plug sliding part, 10A Plug body guide part, 10B Plug terminal guide part, 10C Plug stop part 11 Plug sliding ribs.

Claims (7)

A plug connection opening provided in the device body;
A connector disposed at the back of the opening for plug connection ;
A plug sliding portion disposed between an entrance of the plug connection opening and the connector, and guiding a plug inserted into the plug connection opening to the connector ;
The plug sliding portion has a guide-shaped plug body guide portion that guides the mold portion of the plug to the inside of the plug sliding portion,
The size of the inner periphery of the plug body guide part is a size that creates a gap between the plug body guide part and the mold part of the inserted plug,
An electronic device characterized in that when a terminal portion of the plug inserted into the plug connection opening is connected to the connector, a part of a mold portion of the plug is inserted into the device main body. . The plug mold portion inserted into the plug connection opening is slid along the plug body guide portion , so that the terminal portion of the plug becomes a position corresponding to the connector.
The electronic device according to claim 1 . The plug sliding portion, said being apparatus main body integrally formed
The electronic device according to claim 1 or 2 . The plug sliding portion is constituted by a rib or a post.
The electronic device as described in any one of Claims 1-3. The plug sliding portion includes a lead-in plug terminal guide portion that guides the terminal portion of the plug to the position of the connector.
The electronic device according to any one of claims 1 to 4 . A gap between the plug main body guide portion and the inserted mold portion of the plug is larger than a gap between the plug terminal guide portion and the inserted plug terminal portion.
The electronic device according to claim 5. The electronic device according to claim 1 , wherein the device main body includes a holding mechanism that sandwiches the connector or a board on which the connector is mounted, and fixes the connector at a certain position.

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