JP6664781B1 - Plug converter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plug conversion device capable of protecting a terminal with a simple structure. SOLUTION: A first male terminal 22 and a first receiving portion 215 are provided on one end surface 2A of a first unit 2, and a second male terminal 32 and a second receiving portion 311 are provided on one end surface 3A of a second unit 3. Accordingly, the first male terminal 22 is received by the second receiving portion 311 and the second male terminal 22 is assembled by assembling the first unit 2 and the second unit 3 with the one end surfaces 2A, 3A facing each other. 32 is received by the first receiving unit 215. The male terminals 22 and 32 in each unit 2 and 3 can be protected by the other unit, and it is not necessary to provide a cover or the like for protection. Therefore, the male terminals 22 and 32 can be protected with a simple configuration. [Selection diagram] Fig. 1

Description

  The present invention relates to a plug conversion device.

  In general, the shapes of the plug and the plug receptacle differ depending on the country or region, and when home appliances or the like for a certain country or region are used in another country or region, plug conversion is required. Therefore, as an apparatus for plug conversion, an overseas outlet adapter composed of a first adapter and a second adapter has been proposed (for example, see Patent Document 1). In the overseas outlet adapter described in Patent Literature 1, the first adapter and the second adapter have plug terminals and ground pins having different shapes from each other, and are configured to be attachable to each other, so that various shapes are provided. It can correspond to the plug receiver.

JP 2003-142216 A

  In the overseas outlet adapter described in Patent Document 1, the first adapter and the second adapter are connected and carried by inserting the plug terminal of the second adapter into the plug receiving portion of the first adapter. You can do it. However, the plug terminal of the first adapter is exposed in a state where the two adapters are connected, and there has been an inconvenience that the plug terminal cannot be protected during storage or carrying. At this time, although a configuration for protecting the plug terminal by attaching a cap or the like is also conceivable, the entire device becomes large and the number of parts increases. Therefore, it has been desired to protect terminals with a simple configuration in a plug conversion device that can be stored or carried.

  An object of the present invention is to provide a plug conversion device that can protect terminals with a simple configuration.

A plug conversion device according to the present invention includes a first unit that can be plug-converted by projecting a first male terminal from one end surface of a main body part formed in a columnar shape and providing a first female terminal on the other end surface. A second unit that is protrudable from one end surface of the pillar-shaped main body and has a second female terminal provided on the other end surface, and that can be plug-converted by providing a second female terminal. A pin member for forming a plug having a predetermined shape together with the first male terminal is provided on a side surface of the main body, and is configured to be attachable to the first unit, and is provided on one end surface of the first unit. , together with the first receiving portion capable of receiving the second male terminal is formed, on one end face of the second unit, the second receiving portion capable of receiving said first male terminal is formed The pin member is configured to be switchable between a housing state housed in the main body of the second unit and a protrusion state protruding from the side surface, and protrudes from the one end surface in the housing state, In one unit, a third receiving portion capable of receiving the pin member in the accommodated state is formed, the first male terminal is constituted by a pair of convex terminal fittings, and the third receiving portion is The first male terminal is formed between the pair of terminal fittings .

According to the present invention as described above, the first male terminal and the first receiving portion are provided on one end surface of the first unit, and the second male terminal and the second receiving portion are provided on one end surface of the second unit. As a result, the first male terminal is received by the second receiving portion, and the second male terminal is received by the first receiving portion by assembling the first unit and the second unit with one end surfaces thereof facing each other. Thus, the male terminal of each unit can be protected by the counterpart unit, and there is no need to provide a cover or the like for protection. Therefore, the male terminal can be protected with a simple configuration. Further, when the first unit and the second unit are assembled, the pin member is received by the third receiving portion and is protected by the first unit. Therefore, the pin member can be protected with a simple configuration. Further, the space between the pair of terminal fittings in the first male terminal can be effectively used.

  At this time, in the plug conversion device of the present invention, the first male terminal is constituted by a pair of convex terminal fittings, and the first receiving portion is provided between the pair of terminal fittings in the first male terminal. Preferably, it is formed. According to such a configuration, the space between the pair of terminal fittings in the first male terminal can be effectively used.

  According to the plug converter of the present invention as described above, the first male terminal and the first receiving portion are provided on one end surface of the first unit, and the second male terminal and the second receiving portion are provided on one end surface of the second unit. Is provided, the male terminal can be protected with a simple configuration.

It is a perspective view showing the plug converter concerning the embodiment of the present invention. It is a perspective view showing the 1st unit of the plug conversion device. FIG. 3 is a perspective view showing the first unit. It is sectional drawing which shows the said 1st unit. FIG. 3 is a perspective view showing the first unit. FIG. 3 is a perspective view showing the first unit. It is a perspective view showing the 2nd unit of the plug conversion device. It is a perspective view showing the 2nd unit. It is a perspective view showing the 2nd unit. It is a perspective view showing the 2nd unit. It is a perspective view showing signs that the 1st unit and the 2nd unit were assembled. It is a perspective view showing signs that the 1st unit and the 2nd unit were assembled. It is a perspective view showing signs that the 1st unit and the 2nd unit were assembled.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The plug conversion device 1 of the present embodiment includes a first unit 2 and a second unit 3, as shown in FIG.

[Configuration of First Unit]
The first unit 2 includes a main body 21, a first male terminal 22, a first female terminal 23, and a pin member 24, as shown in FIGS.

  The main body 21 is entirely formed in a columnar shape (an oval cross section in the present embodiment) by an insulating resin member, and is constituted by a main main body 211 and a pair of movable portions 212. Hereinafter, the height direction of the columnar body 21 is defined as the Z direction, the longitudinal direction of the oval shape is defined as the X direction, and the direction substantially orthogonal to the Z direction and the X direction is defined as the Y direction. When the first unit 2 and the second unit 3 are assembled as shown in FIG. 1, the X direction, the Y direction, and the Z direction of the first unit 2 are used as a reference.

  The main body 211 includes a pair of protrusions 211A protruding toward the one end surface 2A of the body 21 in the Z direction, a groove 211B formed between the pair of protrusions 211A, and an outer side in the X direction of the protrusion 211A. And a formed notch portion 211C. The groove portion 211B has a shape penetrating in the Y direction and opening to the one end surface 2A side.

  The pair of movable parts 212 are arranged in the notch part 211C, are movable in the X direction with respect to the main body part 211, and are connected to each other via a spring member 26 as shown in FIG. The spring member 26 applies an urging force in a direction such that the pair of movable portions 212 move away from each other. As shown in FIG. 5, when the predetermined maximum distance between the pair of movable parts 212 is reached, the pair of movable parts 212 abuts on the main body part 211, so that the distance does not further increase. I have. The pair of movable parts 212 have protrusions 212A that can penetrate the main body part 211 and face in the X direction. The outer portion in the X direction of the movable portion 212 has a shape that conforms to the shape of the outer peripheral surface of the main body portion 211.

  In the pair of protrusions 211A, receiving portions 213 in the form of an A-type plug receiving shape are formed on side surfaces (surfaces in the Y direction) 2B and 2D of the main body portion 21. Further, an accommodation groove 214 that extends along the Z direction and accommodates the pin member 24 is formed on the side surface 2D.

  As shown in FIG. 5, in a state where the pair of movable portions 212 are separated by a predetermined distance, an A-type plug is inserted from one end surface 2A of the main body portion 21 into a gap between the protrusion portion 211A and the movable portion 212. It can be plugged in. That is, the first receiving portion 215 having an A type plug receiving shape is formed on the one end surface 2A. A pair of metal fitting recesses 216 are formed in the other end surface 2C of the main body 21 (the surface facing the opposite side to the one end surface 2A), and a pin member 35 described later is provided between the pair of metal fitting recesses 216. A hole-shaped receiving portion 217 for receiving the hole is formed.

  The first male terminal 22 protrudes from one end surface 2A of the pair of movable parts 212. The first male terminal 22 includes a pair of convex terminal fittings having shapes corresponding to the C type, the SE type, the B type, and the CB type. Since the movable portion 212 is provided so as to be movable in the X direction as described above, the distance between the pair of terminal fittings constituting the first male terminal 22 can be adjusted to correspond to each type. Has become.

  A pair of terminal fittings constituting the first male terminal 22 are arranged in the X direction, and a first receiving portion 215, which is a pair of holes, is formed therebetween. A pair of holes constituting the first receiving portion 215 are also arranged in the X direction.

  The first female terminal 23 includes a pair of metal fitting recesses 216 formed on the other end surface 2 </ b> C of the main body 21 and terminal metal fittings provided in each of the pair of metal fitting recesses 216. The first female terminal 23 only needs to be in accordance with the shape of the insertion plug of the electric device to be used, and for example, may be configured as an A-type plug receiver. Further, the first male terminal 22 and the first female terminal 23 are electrically connected by a connection fitting 25 built in the main body 21. Accordingly, the first male terminal 22 can be inserted into a plug receiver provided on a wall surface of a building or the like, and an insertion plug can be inserted into the first female terminal 23 to use an electric device. At this time, a transformer may be used if necessary.

  The pin member 24 is made of an insulating resin and has an O2 type ground pin shape. The pin member 24 is pivotally supported by the main body portion 211 on the other end surface 2C side of the main body portion 21, and is accommodated in the accommodation groove 214 of the main body portion 21 (FIG. 3), and protrudes from the side surface 2B in the Y direction. And a protruding state extending along (FIG. 6).

[Configuration of Second Unit]
7 and 8, the second unit 3 includes a main body 31, a second male terminal 32, a second female terminal 33, pin members 34 and 35, and connection fittings.

  The main body 31 is entirely formed in a columnar shape (an oval cross section in the present embodiment) with an insulating resin member. The cross-sectional shape and size of the main body 31 of the second unit 3 substantially match the cross-sectional shape and size of the main body 21 of the first unit 2. Hereinafter, the height direction of the columnar main body 31 is defined as the z direction, the longitudinal direction of the oval shape is defined as the x direction, and the direction substantially orthogonal to the z direction and the x direction is defined as the y direction.

  A second receiving portion 311 having a plug receiving shape corresponding to the first male terminal 22 is formed on one end surface 3A of the main body 31 in the z direction. Note that the spacing of the terminal fittings constituting the first male terminal 22 is adjustable, but the second receiving portion 311 is capable of receiving when these terminal fittings have an appropriate spacing. Often, in this embodiment, it is acceptable when the interval is at its maximum. On each of two side surfaces (surfaces facing in the y direction) 3B, 3D of the main body 31, accommodation grooves 312, 313 for accommodating the pin members 34, 35 are formed along the z direction. A pair of metal fitting recesses 314 is formed in the other end surface 3C of the main body 31 (the surface facing the opposite side to the one end surface 3A).

  The second male terminal 32 protrudes from one end surface 3A of the main body 31. The second male terminal 32 is constituted by a pair of convex terminal fittings having shapes corresponding to the A type and the O type. These terminal fittings are rotatably attached to the main body 31 with the z direction as the axial direction, and can be switched between the A type and the O type by rotating. Further, the terminal fittings constituting the second male terminal 32 are arranged between the second receiving portions 311 which are a pair of holes arranged in the x direction.

  The second female terminal 33 includes a pair of metal recesses 314 formed on the other end face 3 </ b> C of the main body 31 and terminal metal fittings provided in each of the pair of metal recesses 314. As with the first female terminal 23, the second female terminal 33 may be any as long as it conforms to the shape of the insertion plug of the electrical device to be used. Further, the second male terminal 32 and the second female terminal 33 are electrically connected by a connection fitting built in the main body 31. Thus, the second male terminal 32 can be inserted into a plug receiver provided in a building or the like, and the insertion plug can be inserted into the second female terminal 33 to use an electric device. At this time, a transformer may be used if necessary.

  The pin members 34 and 35 are made of insulating resin and have B3 type and BF type ground pin shapes, respectively. The pin members 34 and 35 are pivotally supported by the main body 31 at the center of the main body 31 in the z direction, and are housed in the housing grooves 312 and 313 of the main body 31 (FIG. 9), respectively, It is possible to switch between a protruding state protruding from 3D and extending along the y direction (FIGS. 7 and 8). The pin members 34 and 35 partially protrude from the one end face 3A in the housed state.

  In the plug conversion device 1, the first unit 2 or the second unit 3 is used alone or the first unit 2 and the second unit 3 are used in an appropriate combination depending on the application. The use state of each unit for each application will be described below.

[Storage or carrying]
When the plug converter 1 is stored or carried without being used, the first unit 2 and the second unit 3 are assembled as shown in FIG. That is, the first male terminal 22 is brought closer to the second receiving portion by bringing the one end surface 2A of the first unit 2 and the one end surface 3A of the second unit 3 close to each other while causing the units 2 and 3 to approach each other. While being received (inserted) by 311, the second male terminal 32 is received (inserted) by the first receiving portion 215. At this time, the pin members 34 and 35 are in the housed state. Portions of the pin members 34 and 35 protruding from the one end face 3A are received in the grooves 211B of the main body 21. That is, the groove 211B functions as a third receiving portion. The assembly is completed when the one end faces 2A, 3A abut against each other.

  In such an assembled state, the first male terminal 22 is arranged in the second unit 3, and the second male terminal 32 is arranged in the first unit 2. That is, these male terminals 22 and 32 are not exposed and are protected by the unit of the other party.

[When using A type]
When converting from the A type to the desired type, the plug conversion device 1 uses the second unit 3 alone as shown in FIG. At this time, the two flat terminal fittings constituting the second male terminal 32 are rotated to make them substantially parallel.

[When using O type]
When converting the O type to the desired type, the plug conversion device 1 uses the second unit 3 alone as shown in FIG. At this time, the two flat terminal fittings constituting the second male terminal 32 are rotated so that they are inclined with respect to each other.

[When using C type, SE type, B type or CB type]
When the plug conversion device 1 converts a C type, SE type, B type or CB type to a desired type, the first unit 2 is used alone as shown in FIGS. At this time, the pair of movable parts 212 are appropriately moved to adjust the distance between the pair of terminal fittings constituting the first male terminal 22.

[When using O2 type]
When converting the O2 type to the desired type, the plug conversion device 1 is assembled with the first unit 2 and the second unit 3 as shown in FIG. That is, with the other end surface 2C of the first unit 2 and the side surface 3D of the second unit 3 facing each other, the side surface 2D is directed toward the one end surface 3A, and these units 2, 3 are made to approach each other in the Z direction. Thereby, the pin member 35 is received (inserted) by the receiving portion 217. When the other end face 2C and the side face 3D abut, the assembly is completed. At this time, the terminal fittings constituting the second male terminal 32 are rotated to be inclined with respect to each other. Further, the pin member 24 is set in a protruding state.

  In such an assembled state, the O2 type plug is constituted by the second male terminal 32 and the pin member 24. The pin member 24 is made of an insulating resin, and does not actually function as an earth pin.

[When using B3 type]
When converting the B3 type to the desired type, the plug conversion device 1 is assembled with the first unit 2 and the second unit 3 as shown in FIG. That is, while the side surface 2D of the first unit 2 and the one end surface 3A of the second unit 3 face each other, the side surface 3B is directed toward the one end surface 2A, and these units 2, 3 are made to approach each other in the Y direction. Thereby, the second male terminal 32 is received (inserted) by the receiving section 213. When the side surface 2D and the one end surface 3A come into contact with each other, the assembly is completed. At this time, the pair of terminal fittings constituting the first male terminal 22 are brought closest to each other.

  Further, the pin member 35 of the second unit 3 is set in the housed state, and a portion of the pin member 35 protruding from the one end face 3A is received in the groove 211B. That is, the groove portion 211B functions as a receiving portion for receiving a part of the pin member 35 not only during storage or carrying, but also when using the B3 type.

  The movable portion 212 has a cutout portion 212B so as not to interfere with the second male terminal 32 inserted into the receiving portion 213. Thereby, even in a state where the first unit 2 and the second unit 3 are assembled, the pair of terminal fittings constituting the first male terminal 22 can be brought closest to each other.

  In such an assembled state, the first male terminal 22 and the pin member 34 form a B3 type plug. The pin member 34 is made of an insulating resin, and does not actually function as a ground pin.

[When using BF type]
When converting the plug conversion device 1 from the BF type to the desired type, the first unit 2 and the second unit 3 are assembled as shown in FIG. That is, while the side surface 2B of the first unit 2 and the one end surface 3A of the second unit 3 face each other, the side surface 3D is directed toward the one end surface 2A, and these units 2 and 3 are made to approach each other in the Y direction. Thereby, the second male terminal 32 is received (inserted) by the receiving section 213. When the side surface 2B and the one end surface 3A are in contact with each other, the assembly is completed. At this time, a pair of terminal fittings constituting the first male terminal 22 is most separated from each other.

  In addition, the pin member 34 of the second unit 3 is set in the housed state, and a portion of the pin member 34 protruding from the one end surface 3A is received in the groove 211B. That is, the groove 211 </ b> B functions as a receiving part for receiving a part of the pin member 34 not only at the time of storage or carrying, but also at the time of using the BF type.

  In such an assembled state, the first male terminal 22 and the pin member 35 constitute a BF type plug. The pin member 35 is made of an insulating resin, and does not actually function as a ground pin.

  According to the present embodiment, the following effects can be obtained. That is, the first male terminal 22 and the first receiving portion 215 are provided on one end surface 2A of the first unit 2, and the second male terminal 32 and the second receiving portion 311 are provided on one end surface 3A of the second unit 3. By assembling the first unit 2 and the second unit 3 with the end faces 2A and 3A facing each other, the first male terminal 22 is received by the second receiving portion 311 and the second male terminal 32 is It is received by the first receiving unit 215. As a result, the male terminals 22, 32 in each of the units 2, 3 can be protected by the counterpart unit, and there is no need to provide a cover or the like for protection. Therefore, the male terminals 22 and 32 can be protected with a simple configuration.

  Further, the first male terminal 22 is received in the second receiving portion 311 and the second male terminal 32 is received in the first receiving portion 215, and the main body 21 of the first unit 2 and the main body 31 of the second unit 3 are connected. By being formed in a columnar shape of the same shape, the appearance when these units 2 and 3 are assembled can be made clear and the design can be improved.

  Further, since the first receiving portion 215 is formed between the pair of terminal fittings constituting the first male terminal 22, the space between the pair of terminal fittings can be effectively used.

  In addition, since the groove 211B is formed in the first unit 2 and the pin members 34 and 35 of the second unit 3 are received, the pin members 34 and 35 are protected by the first unit 2. Therefore, the pin members 34 and 35 can be protected with a simple configuration.

  Further, since the groove 211B for receiving the pin members 34 and 35 is formed between the pair of terminal fittings constituting the first male terminal 22, the space between the pair of terminal fittings can be effectively used. .

  In addition, since the receiving portion 213 that can receive the second male terminal 32 of the second unit 3 is formed in the main body 21 of the first unit 2, two units using the existing second male terminal 32 are used. A few parts can be assembled, and it is not necessary to form a new part in the first unit 2 for the assembly. Further, since the second male terminal 32 has a protruding shape, the receiving portion 213 can be formed in a concave shape, and it is not necessary to form a protruding portion on the first unit 2 for assembly. Thus, the two units 2 and 3 can be assembled with a simple configuration.

  Further, since the pin members 34 and 35 having different shapes are provided on the two side surfaces 3B and 3D of the second unit 3, it is possible to determine which of the two side surfaces 3B and 3D faces the first male terminal 22 side. By making a selection, it is possible to determine which pin member 34, 35 is to be used, and it is possible to configure a plug having two different shapes.

  As described above, the present invention has been described with reference to the embodiment. However, the present invention is not limited to the above-described embodiment, and includes other configurations and the like that can achieve the object of the present invention. Are also included in the present invention.

  For example, in the above embodiment, the first receiving portion 215 is formed between a pair of terminal fittings constituting the first male terminal 22, and the first male terminal 22 and the second male terminal 32 are stored or carried when carrying. Although a total of four terminal fittings are arranged in the X direction, the present invention is not limited to such a configuration. For example, even when stored or carried, the facing direction of the pair of terminal fittings forming the first male terminal and the facing direction of the pair of terminal fittings forming the second male terminal are arranged substantially orthogonally. Good. That is, the first receiving portion may not be disposed between the pair of terminal fittings constituting the first male terminal.

  Further, in the above-described embodiment, the method of using the plug conversion device for each type of plug receiver has been specifically described. However, the plug conversion device only needs to be compatible with an appropriate type of plug receiver, and has an appropriate shape. What is necessary is just to have a male terminal and a pin member, and to be constituted so that two units can be suitably assembled.

  In addition, the best configuration and method for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, although the present invention has been particularly shown and described with particular reference to particular embodiments, it will be understood that other modifications may be made without departing from the spirit and scope of the invention. Those skilled in the art can make various modifications in terms of material, quantity, and other detailed configurations. Therefore, the description of the shapes, materials, and the like disclosed above is merely illustrative for the purpose of facilitating the understanding of the present invention, and does not limit the present invention. The description by the name of the member excluding some or all of the limitations such as is included in the present invention.

DESCRIPTION OF SYMBOLS 1 Plug converter 2 1st unit 21 Main part 211B Groove part (3rd receiving part)
215 first receiving portion 22 first male terminal 23 first female terminal 24 pin member 2A one end surface 2B, 2D side surface 2C other end surface 3 second unit 31 main body portion 311 second receiving portion 32 second male terminal 33 second female terminal 34, 35 Pin member 3A One end face 3B, 3D side face 3C Other end face

Claims (2)

A first unit that can be plug-converted by a first male terminal protruding from one end surface of a main body part formed in an overall columnar shape and a first female terminal provided on the other end surface;
A second unit that can be plug-converted by projecting a second male terminal from one end surface of the main body portion formed in a columnar shape and providing a second female terminal on the other end surface;
The second unit is configured such that a pin member for forming an insertion plug having a predetermined shape together with the first male terminal is provided on a side surface of the main body, and is configured to be attachable to the first unit.
A first receiving portion capable of receiving the second male terminal is formed on one end surface of the first unit, and a second receiving portion capable of receiving the first male terminal is formed on one end surface of the second unit. Is formed ,
The pin member is configured to be switchable between a housing state housed in the main body of the second unit and a protrusion state protruding from the side surface, and protrudes from the one end surface in the housing state,
In the first unit, a third receiving portion capable of receiving the pin member in the accommodated state is formed ,
The first male terminal is constituted by a pair of convex terminal fittings,
The said 3rd receiving part is formed between the pair of said terminal fittings in the said 1st male terminal, The plug converter characterized by the above-mentioned. The first male terminal is constituted by a pair of convex terminal fittings,
The said 1st receiving part is formed between a pair of said terminal fittings in the said 1st male terminal, The plug converter of Claim 1 characterized by the above-mentioned.

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