JP2017199697A - Electrical equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely fix a connector element in an electrical equipment in which a connector element such as an AC plug and a conversion plug is constituted so as to be interchangeable with respect to an electrical equipment body.SOLUTION: Disclosed is electrical equipment 100 in which a plug 3 is detachably provided on a mounting surface 21x of an electrical equipment body 2. This electrical equipment includes: a first engaging structure 5 composed of a plug-side first engagement part 51 and a body-side first engagement part 52 which are engaged with each other in a direction perpendicular to the mounting surface 21x in a state where the plug 3 is mounted on the mounting surface 21x; and a second engaging structure 6 composed of a plug-side second engagement part 61 and a body-side engagement part 62 which are engaged with each other in the surface direction of the mounting surface 21x in the state where the plug 3 is mounted on the mounting surface 21x.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an electric device in which connector elements such as an AC plug and a conversion plug are detachably provided on the electric device main body.

  As a conventional electric device, for example, as shown in Patent Document 1 and Patent Document 2, an AC plug provided in the main body of the electric device can be fitted with a conversion plug suitable for a foreign outlet so that it can be adapted to an outlet in each country. There is something to do.

  However, in the electric device having this configuration, when the conversion plug is attached and used, the AC plug provided in the electric device main body becomes an unnecessary part. For this reason, it is considered that a connector element such as an AC plug or a conversion plug is configured to be replaceable with respect to the electric device main body. That is, the structure which removes AC plug from an electric equipment main body, and attaches a conversion plug is considered.

  Specifically, as shown in FIG. 8, a configuration is considered in which the connector element is slid and mounted on the mounting surface of the electric device main body. More specifically, the configuration is such that the protrusion formed on the connector element is slid along the slide groove formed in the electric device body, and is fixed by a lock mechanism at a predetermined fixing position. The locking mechanism is composed of a locking portion such as a movable locking claw provided in the electric device main body, and a locked portion such as a recess provided in the connector element and locked by the locking claw. Yes. In addition, the latching | locking part is provided with respect to the electric equipment main body by the spring etc. so that a movement is possible.

  However, in the above configuration, in the direction of removing the connector element, the electric device main body and the connector element are fixed only by the locking claw and the locked portion of the locking mechanism. (Moving parts such as locking parts, locked parts, etc.) may be insufficiently fixed due to wear or deterioration of the connector elements, which may cause rattling of the connector elements or poor contact with the electrical equipment body side. . Moreover, there is a possibility that the connector element is unexpectedly detached due to an external impact. In order to solve these problems, it is conceivable that the lock mechanism has a complicated structure, a plurality of lock mechanisms are provided, or the size of the lock mechanism increases. However, the size of the electric device main body increases and the number of parts increases. It's expensive and not a good idea.

JP 2012-16228 A JP 2007-52998 A

  Therefore, the present invention has been made to solve the above-described problems, and in an electrical device configured to be able to replace a connector element such as an AC plug or a conversion plug with respect to the electrical device body, the connector element is securely fixed. The main task is to be able to do it.

  That is, the electrical device according to the present invention is an electrical device in which a connector element is detachably provided on a mounting surface set in the electrical device body, and the mounting is performed in a state where the connector element is mounted on the mounting surface. A first engagement structure comprising a connector-side first engagement portion and a body-side first engagement portion that engage with each other in a direction perpendicular to the surface; and the attachment in a state where the connector element is attached to the attachment surface. A connector-side second engagement portion and a body-side second engagement portion that are engaged with each other in the surface direction of the surface.

Since such an electrical device has a first engagement structure that engages in the direction perpendicular to the mounting surface and a second engagement structure that engages in the surface direction of the mounting surface, the connector element is connected to the electrical device. It can be securely fixed to the main body.
In other words, in the present invention, the connector-side first engagement portion provided on the connector element and the main-unit-side first engagement portion provided on the electric device main body are engaged with each other in the direction perpendicular to the mounting surface. Even if a force is applied in the vertical direction, the connector element is unlikely to come off from the electric device body. Further, in the surface direction of the mounting surface, the connector side second engaging portion provided in the connector element and the main body side second engaging portion provided in the electric device main body engage with each other. Even if a force is applied in the surface direction, the connector element is unlikely to come off from the electric device body.

The connector-side second engagement portion is preferably on the attachment direction side along the surface direction of the attachment surface from the main body-side second engagement portion in a state where the connector element is attached to the attachment surface. .
In this case, in the surface direction of the attachment surface, the connector side second engagement portion provided in the connector element and the main body side second engagement portion provided in the electric device main body engage with each other. Even if a force is applied in the surface direction of the surface, the connector element is difficult to come off from the electric device body.

It is desirable to provide a lock mechanism for removably fixing the connector element to the mounting surface.
In this case, since the lock mechanism is further provided in addition to the first engagement structure and the second engagement structure, the connector element can be more firmly fixed to the electric device main body. For this reason, not only is it difficult for the connector element to come off from the electric device body, but it is also possible to prevent the connector element from rattling.

  It is desirable that the connector element is attached to the attachment surface by rotating the connector element in contact with the electric device main body. Thus, by setting it as the structure which rotates and attaches a connector element with respect to an electric equipment main body, a 1st engagement structure and a 2nd engagement structure can be designed easily without difficulty.

  It is preferable that the connector element is attached by rotating the connector element in contact with a side surface of the electric device main body connected to the attachment surface. In this way, the first engagement structure and the second engagement structure can be designed easily and easily by adopting a configuration in which the connector element is attached by rotating it in contact with the side surface of the main body of the electric device. it can.

  It is desirable that the connector element is positioned with respect to the electric device main body in the first half stage of rotation when attaching the connector element, and the connector element is fixed to the mounting surface by the lock mechanism in the second half stage of rotation. . In this case, both positioning and fixing can be realized simply by rotating the connector element with respect to the electric device main body, so that the work of attaching the connector element to the electric device main body can be simplified.

  The electrical device main body includes a circuit board having a receiving terminal provided so as to be able to contact the contact terminal of the connector element, and in the state where the connector element is fixed to the mounting surface, the receiving terminal is the contact terminal. It is desirable that the connector element is configured to move in the removal direction by the elastic restoring force of the receiving terminal when the lock mechanism is released. In this case, when the connector element is removed, the connector element is lifted from the electric device main body simply by releasing the lock mechanism, so that the work of removing the connector element can be facilitated.

  In the configuration in which the receiving terminal is simply moved in the removal direction by the elastic restoring force of the receiving terminal, the behavior of the connector element is not fixed when the lock mechanism is released, and there is a possibility of jumping and dropping from the electric device body. For this reason, when the lock mechanism is released, it is preferable that the connector element rotate and move in the removal direction with the predetermined contact portion as the rotation center by the elastic return force of the receiving terminal. In this case, since the behavior of the connector element when the lock is released is fixed, it is easy to remove the connector element so that it does not fall.

  It is desirable that the direction in which the contact terminal presses the receiving terminal when attaching the connector element is a direction substantially perpendicular to the substrate plane of the circuit board. If this is the case, the configuration in which the receiving terminal is directly attached to the circuit board is facilitated. In the conventional configuration in which the connector element is slid and attached, when the direction in which the receiving terminal is pressed is a direction along the board plane of the circuit board (a direction parallel to the board plane), the receiving terminal is connected to the circuit board. In the structure directly attached to the housing, excessive stress is applied to those connecting portions, so that they easily break down and are usually fixed to the case of the electric device main body.

The connector-side second engagement portion is an insertion portion having a hollow portion that is inserted into an opening formed on a mounting surface of the electric device main body, and the contact terminal is provided in the hollow portion. Is desirable. In this case, the contact terminal is not damaged when the connector element is attached or detached.
Moreover, since the connector side 2nd engaging part also has the function to protect so that the contact terminal of a connector element may not be damaged, it is not necessary to provide such a member separately.

  It is desirable that the connector-side second engagement portion moves in contact with a guide portion provided in the electric device main body. If this is the case, the connector-side second engagement portion can be moved in contact with the guide portion, so that it can be easily and reliably engaged with the body-side second engagement portion.

  The guide portion is preferably formed in an arc shape. If this is the case, the main body-side second engaging portion can be moved in contact with the arcuate guide portion, so that it can be more easily and reliably engaged with the main body second engaging portion.

  According to the present invention configured as described above, an electrical device configured such that a connector element such as an AC plug or a conversion plug is replaceable with respect to the electrical device body has a first engagement structure and a second engagement structure. Therefore, the connector element can be securely fixed to the electric device body.

The side view which shows typically the electric equipment main body of the AC adapter in this embodiment. The partial expansion perspective view which mainly shows the attachment surface in the embodiment. The perspective view of the plug in the embodiment. The side view and rear view of the plug in the embodiment. The schematic diagram which shows the rotation first half step of the plug in the embodiment. The schematic diagram which shows the intermediate stage of the rotation first half of the plug in the same embodiment, and the second half rotation. The schematic diagram which shows the rotation latter half stage of the plug in the embodiment. The figure which shows the fixing method of the connector element with respect to the conventional electric equipment main body.

Hereinafter, an embodiment of an electric apparatus according to the present invention will be described with reference to the drawings.
In the following, an AC adapter will be described as an electric device. However, the charger may be a battery charger such as a lithium ion battery used for a mobile phone or a digital camera, or may have a plug. As long as it is an electric device, it can be applied to any device.

  The AC adapter 100 of the present embodiment is configured such that a plurality of different connector elements 3 can be exchanged for the electric device main body 2. As the connector element 3 of the present embodiment, for example, a plug of a type having two pins used in Japan or the United States, for example, two pins and one ground pin used in a foreign country other than Japan or the United States are used. The type of plug that is present is conceivable.

  As shown in FIG. 1, the electric device main body 2 is provided with, for example, a substantially rectangular box-shaped case 21 and each element of an electric circuit provided inside the case 21 and constituting a transformer circuit, a rectifier circuit, and the like (not shown). Circuit board 22 is provided. The case 21 is configured by overlapping a first case element 211 and a second case element 212 made of resin. The circuit board 22 is attached in the second case element 212. In FIG. 1 and the like, a cable extending from the side surface of the case 21 and connected to, for example, a power supply target device is omitted, and some internal structures are also omitted.

  The electric device main body 2 configured as described above is configured such that a plug 3 as a connector element is externally attached in a replaceable manner. Specifically, an attachment surface 21x to which the plug 3 is attached is formed on one surface of the case 21 of the electric device body 2, specifically on the outer surface of the bottom wall of the second case element 212 (upper surface in FIG. 1) ( (See FIG. 2).

  As shown in FIGS. 3 and 4, the plug 3 includes a plug main body 31 that is externally attached to the mounting surface 21 x of the electric device main body 2, a pair of plug pins 32 a and 32 b that protrude from the plug main body 31, and a pair And a pair of contact portions 33a and 33b which are contact terminals connected to the receiving terminals 22a and 22b of the circuit board 22 and connected to the plug pins 32a and 32b. The plug 3 may have three pins having a ground pin in addition to the pair of plug pins 32a and 32b.

  Specifically, the plug 3 is attached to the attachment surface 21x of the second case element 212, and the pair of contact portions 33a and 33b of the plug 3 are in direct contact with and electrically connected to the receiving terminals 22a and 22b of the circuit board 22. Is done. Here, the receiving terminal may be in the electric device main body instead of the circuit board.

  The plug body 31 of the plug 3 is formed of an insulating resin and is externally attached to the mounting surface 21x of the second case element 212. Specifically, the plug body 31 has an insertion portion 311 that is inserted into two openings 21H (see FIG. 2) formed in the attachment surface 21x.

  Here, as shown in FIG. 2, the receiving terminals 22a and 22b of the circuit board 22 are located inside the two openings 21H of the mounting surface 21x. That is, the receiving terminals 22a and 22b of the circuit board 22 are configured so as not to extend outside the mounting surface 21x of the second case element 212 by being positioned inside the opening 21H. Thus, the receiving terminals 22a and 22b are protected from external contact.

  The insertion portion 311 of the plug body 31 is formed on the base end surface of the plug body 31 and has a shape corresponding to the opening 21H. In the present embodiment, since the two opening portions 21H are formed on the attachment surface 21x, the two insertion portions 311 are also formed corresponding to the two opening portions 21H. The base end surface of the plug main body 31 is a surface opposite to the tip end surface on which the pair of plug pins 32a and 32b are provided, and is a surface on which the pair of contact portions 33a and 33b are provided.

  In the present embodiment, the pair of contact portions 33 a and 33 b are provided in a hollow portion 311 s formed in the insertion portion 311. That is, one contact portion 33 a is provided in the hollow portion 311 s of one insertion portion 311, and the other contact portion 33 b is provided in the hollow portion 311 s of the other insertion portion 311. Thus, by providing the contact portions 33a and 33b in the hollow portion 311s of the insertion portion 311, the contact portions 33a and 33b are protected from external contact.

  Further, since the receiving terminals 22a and 22b of the circuit board 22 are inserted into the hollow portion 311s of the insertion portion 311 when the plug 3 is attached to the attachment surface 21x, the opposite side walls 311m and 311n of the insertion portion 311 are provided. It functions as a protective structure that guides and protects the receiving terminals 22a and 22b.

  Here, each of the pair of receiving terminals 22a and 22b is made of a conductive metal plate, and is directly fixed to the circuit board 22 and connected to an electric circuit. The pair of receiving terminals 22a and 22b is such that one receiving terminal 22a is in press contact with one contact portion 33a of the plug 3 and the other receiving terminal 22b is in a state where the plug 3 is fixed to the mounting surface 21x. The other contact portion 33b of the plug 3 is pressed and contacted. At this time, the receiving terminals 22a and 22b are in press contact with the tip surfaces of the contact portions 33a and 33b.

  In the present embodiment, the plug 3 is attached to the electric device main body 2 by rotating the plug 3 in contact with the electric device main body 2.

  Specifically, as shown in FIGS. 5 to 7, a predetermined part of the plug 3 is brought into contact with a predetermined part of the electric device main body 2, and the plug 3 is connected to the electric device main body 2 with the contact part as a rotation center. Is rotated, the insertion portion 311 of the plug 3 is inserted into the opening 21H of the electric device main body 2 and attached. In this attached state, the contact portions 33 a and 33 b of the plug 3 are in press contact with the receiving terminals 22 a and 22 b of the circuit board 22.

  Here, the predetermined part which becomes the rotation center of the plug 3 is the front end surface of the rear side wall 312 formed behind the two insertion parts 311 inserted into the opening 21H (see FIG. 5). Moreover, the predetermined part used as the rotation center of the electric equipment main body 2 is the corner | angular part 212r of the side wall 212n (refer FIG. 2) formed between the two opening parts 21H in the 2nd case element 212 (refer FIG. 5). . In addition, the corner | angular part 212r of this embodiment is formed in the recessed part 21M formed in the side wall 212n (refer FIG. 5). Further, in a state where the plug 3 is attached to the electric device main body 2, the rear side wall 312 is accommodated in the recess 21M.

  And in this embodiment, as shown in FIGS. 1-3, the lock mechanism 4 which fixes the plug 3 to the attachment surface 21x of the electric equipment main body 2 so that attachment or detachment is possible is provided.

  The lock mechanism 4 fixes the plug 3 to the mounting surface 21x in a state where the contact portions 33a and 33b of the plug 3 are in contact with the receiving terminals 22a and 22b of the circuit board 22 and the receiving terminals 22a and 22b are elastically deformed. It is.

  Specifically, the locking mechanism 4 is provided so as to be slidable between a locking position and an unlocking position in the second case element 212 and a locking portion 41 (see FIG. 3) provided on the rear end surface of the plug body 31. And a locked portion 42 (see FIGS. 1 and 2) to which the locking portion 41 is locked in the locked position. The locked portion 42 slides in a direction perpendicular to the rotation axis when the plug 3 is attached to the electric device body 2 and is urged to the lock position by the urging force of the elastic body 43 such as a spring. Yes. In the present embodiment, the lock position is located closer to the rotation shaft (rotation center) than the unlock position.

  Further, as shown in FIG. 2, the locked portion 42 has a locked plate 421 having a flat plate shape, and the locked plate 421 is locked by the locked portion 41. A stop hole 421H and an inclined surface 421a for guiding the locking portion 41 to the locked hole 421H are provided.

  Then, when a predetermined part of the plug 3 is brought into contact with a predetermined part of the electric device main body 2 (see FIG. 5) and the plug 3 is rotated with respect to the electric device main body 2 around the contact part, The stop part 41 contacts the inclined surface 421a of the locked part 42 (see FIG. 6). Further, when the plug 3 is pressed in the mounting direction, the locking portion 41 slides on the inclined surface 421a, the locked plate 421 slides to the unlock position, and the locking portion 41 is pushed to a predetermined position. The locked plate 421 slides to the locked position by the urging force of the elastic body 43, the locking portion 41 locks in the locked hole 421H, and the plug 3 is locked to the mounting surface 21x (see FIG. 7). ).

  In the present embodiment, the plug 3 is positioned with respect to the mounting surface 21x of the electric device main body 2 in the first half of the rotation when the plug 3 is rotated and attached to the electric device main body 2, and is locked in the second half of the rotation. The plug 3 is fixed to the mounting surface 21 by the mechanism 4.

  Specifically, in the first half of the rotation, when the plug 3 is rotated with respect to the electric device main body 2, a part of the insertion portion 311 of the plug 3 is inserted into the opening portion 21H of the attachment surface 21x. Thus, a part of insertion part 311 is inserted in the opening part 21H, and the plug 3 is positioned with respect to the attachment surface 21x. That is, the contact portions 33 a and 33 b of the plug 3 are positioned with respect to the receiving terminals 22 a and 22 b of the circuit board 22. The first half stage of rotation is a stage until the locking part 41 of the locking mechanism 4 comes into contact with the inclined surface 421a of the locked part 42 (FIG. 5 → FIG. 6). Further, it may be a stage until the contact portions 33 a and 33 b of the plug 3 come into contact with the receiving terminals 22 a and 22 b of the circuit board 22.

  On the other hand, in the latter half stage of rotation, the plug 3 positioned in the first half stage of rotation is further rotated (FIG. 6 → FIG. 7), and the entire insertion portion 311 of the plug 3 is inserted into the opening portion 21H of the mounting surface 21x. Is done. At this time, as described above, the locking portion 41 of the locking mechanism 4 is locked by being locked to the locked portion 42. Further, in the latter half stage of rotation, the receiving terminals 22a and 22b of the circuit board 22 come into contact with the contact portions 33a and 33b of the plug 3 and elastically deform. The direction in which the contact portions 33a and 33b press the receiving terminals 22a and 22b in the latter half of the rotation is substantially perpendicular to the substrate plane of the circuit board 22 (see FIG. 7).

  In the present embodiment, when the lock mechanism 4 is released, that is, when the locked plate of the locked portion 42 is operated to the unlock position, the plug 3 is moved by the elastic return force of the receiving terminals 22a and 22b. Move in the direction of removal. Specifically, when the lock mechanism 4 is released, the plug 3 moves toward the removal direction with the predetermined contact portion (the front end surface of the rear side wall 312) as the rotation center by the elastic return force of the receiving terminals 22a and 22b. It rotates (see FIG. 6). As a result, the plug 3 is in a position where the locking portion 41 of the locking mechanism 4 contacts the inclined surface 421a of the locked portion 42, or the contact portions 33a and 33b are in contact with the receiving terminals 22a and 22b. The receiving terminals 22a and 22b are in a position deformed only by the dead weight of the plug 3. This makes it easy to remove the plug 3 from the electric device body 2.

  As shown in FIGS. 5 to 7, the electric device 100 according to the present embodiment is provided separately from the lock mechanism 4 and is perpendicular to the mounting surface 21 x in a state where the plug 3 is mounted on the mounting surface 21 x. First engagement structure 5 including connector side first engagement portion 51 and main body side first engagement portion 52 that engage with each other in the direction (vertical direction in FIG. 5 and the like), lock mechanism 4 and first engagement structure The connector side second engaging portion 61 and the main body side are provided separately from 5, and engage with each other in the surface direction of the mounting surface 21x (left-right direction in FIG. 5 and the like) with the plug 3 mounted on the mounting surface 21x. And a second engagement structure 6 including a second engagement portion 62. 5 and 7, the locked portion 42 of the lock mechanism 4 is not shown.

  The plug-side first engagement portion 51 is formed by recesses formed on the left and right outer surfaces of the rear side wall 312 of the plug 3, respectively, and engages toward the plug removal side in a state where the plug 3 is attached to the attachment surface 21x. A surface 51a is provided.

  Moreover, the main body side first engaging portion 52 is configured by convex portions respectively formed on the left and right inner surfaces of the concave portion 21M of the second case element 212 facing each other, and the plug 3 is attached to the attachment surface 21x. The plug-side first engagement portion 51 has an engagement surface 52a that faces the engagement surface 51a.

  The first engagement structure 5 is engaged as the plug 3 is rotated in the attachment direction. The plug-side first engagement portion 51 and the main body-side first engagement portion 52 are formed so that the plug 3 can rotate with the contact portion as a rotation center. That is, the first engagement structure 5 also functions as a guide mechanism for maintaining the rotation posture of the plug 3 with respect to the electric device body 2 when the plug 3 is rotated with respect to the electric device body 2. The first engagement structure 5 also contributes to the positioning of the plug 3 with respect to the mounting surface 21x in the first half stage of rotation described above.

  The plug-side second engagement portion 61 is configured by the insertion portion 311 of the plug 3, and in a state where the plug 3 is attached to the attachment surface 21x, the plug-side second engagement portion 61 is engaged in the removal direction along the surface direction of the attachment surface 21x. A surface 61a is provided.

  Moreover, the main body side second engaging portion 62 is configured by the guide portion 7 formed on the rotation center side of each opening 21H in the second case element 212, and the plug 3 is attached to the attachment surface 21x. The plug-side second engagement portion 61 has an engagement surface 62a facing the engagement surface 61a. The guide portion 7 is formed so that the plug 3 can rotate with the contact portion as the rotation center. Specifically, the insertion portion 311 which is the plug-side second engagement portion 61 has the contact portion as the rotation center. It is formed in the shape of an arc with respect to the contact part so that it can rotate.

  The second engagement structure 6 is engaged as the plug 3 is rotated in the attachment direction. The plug-side second engagement portion 61 and the main body-side second engagement portion 62 are formed so that the plug 3 can rotate about the contact portion as a rotation center. That is, the second engagement structure 6 also functions as a guide mechanism for maintaining the rotation posture of the plug 3 with respect to the electric device main body 2 when the plug 3 is rotated with respect to the electric device main body 2. The second engagement structure 6 also contributes to the positioning of the plug 3 with respect to the mounting surface 21x in the first half stage of rotation described above. Further, the plug-side second engagement portion 61 is located on the attachment direction side along the surface direction of the attachment surface 21x from the main body-side second engagement portion 62 in a state where the plug 3 is attached to the attachment surface 21x. Yes.

  When the first engagement structure 5 and the second engagement structure 6 are rotated by bringing a predetermined portion (rear side wall 312) of the plug 3 into contact with a predetermined portion (corner portion 212r) of the electric device body 2, the plug 3 The plug-side first engagement portion 51 is engaged with the body-side first engagement portion 52 of the second case element 212, while the plug 3 insertion portion 311 (plug-side second engagement portion) is the second case element 212. It moves in contact with the guide portion 7. Thereby, the rotational movement of the plug 3 with respect to the electric equipment main body 2 is guided. Furthermore, the first engagement structure 5 and the second engagement structure 6 are engaged by fixing the plug 3 to the electric device main body 2 by the lock mechanism 4.

<Effect of this embodiment>
According to the AC adapter 100 according to the present embodiment configured as described above, in addition to the lock mechanism 4, the first engagement structure 5 that engages in the direction perpendicular to the attachment surface 21x and the surface direction of the attachment surface 21x. Since the second engaging structure 6 is engaged, the plug 3 can be reliably fixed to the electric device main body 2 without relying on the lock mechanism 4.

  Further, since the plug 3 is configured to be attached to the attachment surface 21x by rotating the plug 3 in contact with the electric device main body 2, the first engagement structure 5 and the second engagement structure 6 cannot be forced. And can be designed easily. That is, when the engagement structure is configured to be slid along the surface direction of the mounting surface as in the conventional method and the engagement structure is engaged in the slide direction, the engagement structure is engaged during the slide movement. However, in this embodiment, even if an engagement structure in two directions orthogonal to each other is provided, the engagement structure obstructs the attachment of the plug by rotating and attaching the plug 3. It will never be.

  Further, when the lock mechanism 4 is released, the plug 3 is configured to move toward the removal direction by the elastic return force of the receiving terminals 22a and 22b. Since 3 is lifted from the electric device main body 2, the work of removing the plug 3 can be facilitated. Here, since the plug 3 is configured to rotate in the removal direction around the predetermined contact portion as the rotation center, the behavior of the plug 3 when the lock mechanism 4 is released is determined, and the plug 3 falls. It will be easy to remove.

The present invention is not limited to the above embodiment.
For example, in the embodiment, the locking portion 41 of the locking mechanism 4 is provided in the plug 3 and the locked portion 42 is provided in the electric device main body 2, but they may be provided in reverse.

  Moreover, in the said embodiment, although the 1st engagement structure and the 2nd engagement structure functioned as a guide mechanism, you may comprise so that each engagement structure may not function as a guide mechanism. At this time, a guide mechanism may be provided separately from the engagement structure.

  In addition, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

100 ... Electric equipment (AC adapter)
2 ... Electrical device main body 21 ... Case 21H ... Opening portion 21x ... Mounting surface 22 ... Circuit boards 22a, 22b ... Receiving terminals 3 ... Plug (connector element)
33a, 33b ... contact part (contact terminal)
311 ... Insertion part 4 ... Fixing mechanism 5 ... First engagement structure 51 ... Plug side first engagement part 52 ... Main body side first engagement part 6 ... Second engagement Combined structure 61... Plug side second engaging portion 62... Main body side second engaging portion

Claims (3)

An electrical device in which a connector element is detachably provided on a mounting surface set in the electrical device body,
A first engagement structure comprising a connector-side first engagement portion and a body-side first engagement portion that engage with each other in a direction perpendicular to the attachment surface in a state where the connector element is attached to the attachment surface;
A second engagement structure including a connector-side second engagement portion and a body-side second engagement portion that engage with each other in the surface direction of the attachment surface in a state where the connector element is attached to the attachment surface. ,
The connector-side second engagement portion is on the attachment direction side along the surface direction of the attachment surface from the main body-side second engagement portion in a state where the connector element is attached to the attachment surface,
A locking mechanism for removably fixing the connector element to the mounting surface;
The electric device body includes a circuit board having a receiving terminal provided so as to be able to contact the contact terminal of the connector element,
In a state where the connector element is fixed to the mounting surface, the receiving terminal is elastically deformed in contact with the contact terminal,
An electrical apparatus configured such that when the locking mechanism is released, the connector element is moved in a removal direction by an elastic return force of the receiving terminal.   The electrical device according to claim 1, wherein when the lock mechanism is released, the connector element rotates and moves in a removal direction about a predetermined contact portion as a rotation center by an elastic return force of the receiving terminal.   The electric device according to claim 1 or 2, wherein a direction in which the contact terminal presses the receiving terminal when the connector element is attached is a direction substantially perpendicular to a substrate plane of the circuit board.