JP6814980B2 - Tabletop - Google Patents

Description

The present invention relates to a power strip.

As a conventional example, the table tap described in Patent Document 1 will be illustrated. In this conventional example, a plurality of blade receiving ports for connecting a power plug having a pair of blades are provided on one surface of the tap body. The plurality of blade sockets are all arranged in a row at equal intervals without distinguishing them as a pair with two holes, and the user can freely select the insertion position of the power plug.

The table tap of this conventional example also has a USB terminal composed of a female connector to which a USB (Universal Serial Bus) plug can be connected. The insertion port for inserting the USB plug is provided on a surface (side surface) different from one surface of the tap body provided with a plurality of blade receiving ports.

JP-A-2015-23016

By the way, in the table tap of this conventional example, the USB terminal is exposed through the insertion port of the tap body in the state where the USB plug is not inserted. For example, when a person is eating or drinking near this table tap placed on a desk, if a liquid such as a drink is spilled or a residue (solid matter) such as food is dropped, these will be different. There was a possibility of entering through the entrance. That is, there is a possibility that the intrusion of foreign matter may damage the peripheral electronic components constituting the circuit for generating DC power, resulting in a decrease in reliability.

The present invention has been made in view of the above reasons, and an object of the present invention is to provide a table tap capable of preventing the reliability from being lowered by a foreign substance that has entered the inside of the vessel.

The table tap according to one aspect of the present invention includes a body having a first insertion port and a second insertion port, a connection portion, a conductive portion, a connector, a conversion circuit, a first substrate, and a second. It includes a substrate. The conductor of the first plug inserted into the first insertion port is electrically connected to the connection portion. The conductive portion electrically connects the external power supply and the connection portion, and supplies AC power received from the external power supply to the conductor of the first plug. The conductor of the second plug inserted into the second insertion port is electrically connected to the connector. The conversion circuit converts the AC power into DC power and supplies it to the conductor of the second plug through the connector. The connector is mounted on the first substrate. Electronic components that make up the conversion circuit are mounted on the second substrate. The first substrate and the second substrate do not overlap each other when viewed from one of the insertion directions in which the conductor of the second plug is inserted, and the first insertion port and the second insertion port do not overlap with each other. They are housed in the vessel side by side along the line-up direction.

The present invention has an advantage that it is possible to prevent the reliability from being lowered by a foreign substance that has entered the inside of the vessel.

FIG. 1 is an exploded perspective view of a table tap according to an embodiment of the present invention as viewed from above. FIG. 2 is a perspective view of the same table tap as viewed from above. FIG. 3 is an exploded perspective view of the same table tap as viewed from below. FIG. 4 is a plan view of the same table tap with the outer cover removed. FIG. 5A is a plan view of the outer body of the same table tap. FIG. 5B is a cross-sectional view taken along the line AA of FIG. 5A. FIG. 6 is a bottom view of the same outer cover. FIG. 7A is a plan view of a main part of the same table tap. FIG. 7B is a front view of a main part of the same table tap. FIG. 8A is a side view of the cover of the same table tap. FIG. 8B is a bottom view of the cover as above. FIG. 9 is a perspective view of the cover as viewed from below. FIG. 10 shows a main part of the same table tap, and is a perspective view when only one cover is in the second position. FIG. 11 shows a main part of the same table tap, and is a perspective view when both covers are in the second position. FIG. 12 shows a main part of the same table tap, and is a perspective view when the USB plug is inserted into one of the second insertion ports. FIG. 13 shows a main part of the same table tap, and is a perspective view when the USB plug is inserted into the other second insertion port. FIG. 14 shows a main part of the same table tap, and is a perspective view when two USB plugs are inserted into both second insertion ports. FIG. 15A is a sectional view taken along line BB in FIG. 7A. FIG. 15B is an enlarged view of a main part of FIG. 15A.

(1) Outline The configurations described below are merely examples of the present invention, and the present invention is not limited to the following configurations, and the technical idea relating to the present invention may be other than the following configurations. As long as it does not deviate from the above, various changes can be made according to the design and the like.

The table tap 1 of the present embodiment includes a long body 10 along one direction. As shown in FIG. 2, the table tap 1 has four outlets to which a power cord plug 101 (first plug) for an electric appliance or the like can be connected. That is, the body 10 has four insertion ports 21 into which the conductors of the insertion plug 101 (a pair of plug blades 101A and the ground terminal 101B) are inserted. The table tap 1 includes a connection portion (512,522,532) to which the conductor of the insertion plug 101 inserted into each insertion port 21 is electrically connected. By connecting the power cord 6 drawn from the body 10 to, for example, an outlet provided on a wall or the like, AC power from an external power source (for example, a commercial AC power source) can be supplied. That is, for example, even if the electric appliance is installed at a place away from the outlet provided on the wall, the electric appliance can be used as a table tap by inserting the electric appliance insertion plug 101 into the insertion port 21 of the table tap 1. AC power can be received via 1. The power cord 6 may have a harness plug connected to a joint box instead of a power plug connected to an outlet provided on a wall or the like.

The body 10 further has an outlet 22 (see FIG. 7A). Further, the table tap 1 includes a conductive portion, a connector 7, a conversion circuit, a first substrate 11, and a second substrate 12. The conductive portion electrically connects the external power supply and the connection portion (512,522,532), and supplies the AC power received from the external power supply to the conductor of the plug 101. The "conductive portion" referred to here corresponds to, for example, a power cord 6, a conductive portion 511, 521, 531 and a fixed piece 513, 523, 533. The connector 7 is housed in the body 10, and is electrically connected to the conductor 1020 (see FIG. 13) of the plug 102 inserted into the insertion port 22, so that DC power is supplied to the conductor 1020. The conversion circuit converts AC power into DC power and supplies it to the conductor 1020 of the plug 102 through the connector 7.

In the present embodiment, the “plug 102” inserted into the insertion port 22 is, for example, a USB (Universal Serial Bus) plug 102 (second plug) (see FIGS. 12 to 14). Therefore, the connector 7 is a USB connector 7 (socket) to which the USB plug 102 is inserted and can be connected. In short, the table tap 1 is provided with USB ports (two as an example) so as to be able to supply DC power for charging a battery built in, for example, a mobile terminal device. However, the connector 7 may be, for example, a VGA connector to which a VGA (Video Graphics Array) terminal is connected, in addition to the USB connector to which the USB plug 102 is connected.

In the following description, in the table tap 1, in order to distinguish between the insertion port 21 and the insertion port 22, they are referred to as "first insertion port 21" and "second insertion port 22". Further, in the following, for the sake of simplification of the description, in the table tap 1, the component for supplying AC power through the first insertion port 21 is referred to as "first block 1A". Further, in the table tap 1, a component for supplying DC power through the second insertion port 22 is referred to as a "second block 1B". The first block 1A corresponds to the portion on the left side of the two-dot chain line A1 in FIGS. 1 and 2 in the body 10. The second block 1B corresponds to the portion on the right side of the alternate long and short dash line A1.

In the present embodiment, as shown in FIG. 4, the USB connector 7 is mounted on the first board 11, and the electronic component 15 constituting the conversion circuit is mounted on the second board 12. The first board 11 and the second board 12 do not overlap each other when viewed from one of the insertion directions in which the conductor 1020 of the USB plug 102 is inserted, and the first insertion port 21 and the second insertion port 22 do not overlap with each other. They are housed in the body 10 side by side along the line-up direction.

In this configuration, the first substrate 11 and the second substrate 12 are housed in the body 10 side by side in the above-mentioned arrangement direction. Therefore, even if a foreign substance (for example, a liquid such as a drink) enters the body 10 through the second insertion port 22, the foreign substance directly hits the second substrate 12 on which various electronic components 15 are mounted. Can be suppressed. As a result, it is possible to prevent the reliability from being lowered due to the foreign matter that has entered the body 10.

(2) Details (2.1) Overall configuration Hereinafter, the table tap 1 of the present embodiment will be described in detail with reference to FIGS. 1 to 15. In the following, unless otherwise specified, the vertical, horizontal, and front-back directions of the table tap 1 are defined and described with reference to the up-down, left-right, and front-back arrows shown in FIG. That is, as an example, the longitudinal direction of the body 10 of the table tap 1 is the left-right direction, and the lateral direction (width direction) of the body 10 is the front-back direction. The insertion direction in which the conductor 1020 of the USB plug 102 is inserted is downward. However, these directions are not intended to limit the usage direction of the table tap 1. In addition, the arrows indicating each direction in the drawing are shown only for the sake of explanation, and are not accompanied by an entity. In the present embodiment, the description will be made on the assumption that the table tap 1 is placed on a horizontal surface such as a desk, but the present embodiment is not particularly limited.

The table tap 1 has a long body 10 along the left-right direction as described in the column of "(1) Outline". The body 10 has a substantially rectangular box-shaped outer cover 2 that is long in the left-right direction and has an open lower surface, and a substantially rectangular box-shaped outer body 3 that is long in the left-right direction and has an open upper surface. There is. Further, the body 10 has four inner covers 4A and an inner body 4B. The outer cover 2 and the outer body 3 are attached so that their open surfaces face each other. The four inner covers 4A and the inner body 4B are housed by the outer cover 2 and the outer body 3.

As described in the column of "(1) Outline", the table tap 1 is composed of a first block 1A and a second block 1B with the two-dot chain line A1 of FIGS. 1 and 2 as a boundary line. The alternate long and short dash line A1 is illustrated for convenience of explanation and is an imaginary line without an entity.

In the outer cover 2, the portion on the left side of the alternate long and short dash line A1 is the first outer cover 2A of the first block 1A, and the portion on the right side of the alternate long and short dash line A1 is the second outer cover 2B of the second block 1B. The first outer cover 2A and the second outer cover 2B are integrally formed. The "wall portion" of the body 10 corresponds to the top plate 20B described later, and the "first wall portion" corresponds to the top plate 20A and the top plate 20B described later, and the "first wall portion" of the body 10 corresponds to the top plate 20B. The "two wall portions" correspond to the bottom plates 30A and 30B and face the first wall portion.

In the outer body 3, the portion on the left side of the alternate long and short dash line A1 is the first outer body 3A of the first block 1A, and the portion on the right side of the alternate long and short dash line A1 is the second outer body 3B of the second block 1B. The first outer body 3A and the second outer body 3B are integrally formed. In the following, the first block 1A will be described first, and then the second block 1B will be described.

(2.2) First block (2.2.1) Overall configuration of the first block The first block 1A is connected to an external power source (for example, a commercial AC power source) by inserting a plug 101 of an electric appliance. It has four outlets that can supply AC power. Specifically, the first block 1A includes a first outer cover 2A, a first outer body 3A, four inner covers 4A, an inner body 4B, a terminal block 5, a power cord 6, and two suction portions 9 (9A, 9B). ) Is provided.

(2.2.2) First Outer Cover The first outer cover 2A is made of a thermoplastic resin such as ABS resin. As shown in FIG. 1, the first outer cover 2A is formed of a top plate 20A, a pair of first side plates 21A, 21A, and a second side plate 22A in a flat box shape in which the lower surface and the right surface are open. .. Both the right ends of the top plate 20A and the pair of first side plates 21A are connected to the second outer cover 2B of the second block 1B.

The top plate 20A has a rectangular plate shape that is long in the left-right direction when viewed from one side in the up-down direction. The top plate 20A has four through holes 201 penetrating in the thickness direction (vertical direction) thereof (see FIG. 1). The four through holes 201 are provided at equal intervals along the left-right direction. Each through hole 201 has a rectangular shape when viewed from one side in the vertical direction.

The top plate 20A has a pair of bosses 202 and one boss 203 (see FIGS. 3 and 6) protruding downward on the lower surface thereof. Each boss is cylindrical and has screw holes. The pair of bosses 202 are provided near the front and rear ends in the vicinity of the left end on the lower surface of the top plate 20A, respectively. The boss 203 is provided at substantially the center in the front-rear direction between the third through hole 201 and the fourth through hole 201 from the left. These three bosses make one-to-one contact with each of the three bosses described later of the first outer body 3A.

Further, the top plate 20A has four sets of a pair of hooking portions 204 projecting downward on the lower surface thereof (that is, a total of eight). As shown in FIG. 6, the hooking portions 204 of each set are provided at the front edge and the trailing edge of the corresponding through holes 201 among the four through holes 201. Each hook portion 204 is formed in a rectangular plate shape when viewed from one side in the front-rear direction. The hook portion 204 has a claw 204A at its tip that projects in a direction approaching the pair of hook portions 204.

Further, as shown in FIGS. 3 and 6, the top plate 20A has four sets of a pair of positioning walls 205 projecting downward on the lower surface thereof (that is, a total of eight). Each set of positioning walls 205 is provided on the left and right edges of the corresponding through holes 201. Each positioning wall 205 is formed in a substantially rectangular plate shape when viewed from one side in the left-right direction. The front and rear ends of each positioning wall 205 are integrally formed with respect to the inner surfaces of the first side plates 21A and 21A facing each other.

Further, the top plate 20A has a first receiving portion 206 for receiving the power cord 6 together with a second receiving portion 308 described later of the first outer body 3A near the left end on the lower surface thereof. The first receiving portion 206 has a pair of walls 206A protruding downward. The pair of walls 206A face each other in the left-right direction. Each wall 206A has a semicircular groove 206B at its lower end that is recessed upward in a semicircular shape when viewed from one side in the left-right direction (see FIG. 3).

The pair of first side plates 21A project downward from both ends of the top plate 20A in the front-rear direction. Each first side plate 21A is formed in an elongated rectangular plate shape when viewed from one side in the front-rear direction. The second side plate 22A projects downward from the left end of the top plate 20A. The second side plate 22A is formed in a substantially rectangular plate shape as a whole when viewed from one side in the left-right direction, and has a first semicircular groove 220 recessed upward in a semicircular shape (FIG. 3). reference). When the first outer cover 2A is attached to the first outer body 3A, the first semicircular groove 220 forms one through hole together with the second semicircular groove 320 described later of the first outer body 3A.

(2.2.3) First Outer Body The first outer body 3A is made of a thermoplastic resin such as ABS resin, like the first outer cover 2A. As shown in FIGS. 3 and 5A, the first outer body 3A is formed of a bottom plate 30A, a pair of first side plates 31A and 31A, and a second side plate 32A in a flat box shape with an open upper surface and a right surface. ing. The right ends of both the bottom plate 30A and the pair of first side plates 31A are connected to the second outer body 3B of the second block 1B.

The bottom plate 30A has a rectangular plate shape that is long in the left-right direction when viewed from one side in the up-down direction. The bottom plate 30A has a pair of bosses 303 and one boss 302 projecting upward on the upper surface thereof (see FIG. 5A). Each boss has a cylindrical shape and has an insertion hole 304 penetrating in the vertical direction. The pair of bosses 303 are provided near the front and rear ends in the vicinity of the left end on the upper surface of the bottom plate 30A, and are configured to be in contact with the tips of the pair of bosses 202 of the first outer cover 2A. The boss 302 is configured to come into contact with the tip of the boss 203 of the first outer cover 2A.

Further, the bottom plate 30A has a positioning cylinder 305 projecting upward on its upper surface (see FIG. 5A). The positioning cylinder 305 is formed in a cylindrical shape with an open upper end surface. The positioning cylinder 305 is aligned with the boss 303 in the left-right direction at substantially the center of the bottom plate 30A in the front-rear direction.

The bottom plate 30A has a plurality of ribs 306 for positioning the middle body 4B and the terminal block 5 on the upper surface thereof (see FIG. 5A). Further, the bottom plate 30A has two sets (that is, a total of four) of a pair of locking portions 307 for fixing the middle body 4B on the upper surface thereof. The plurality of ribs 306 have a rectangular plate shape and project upward. The locking portions 307 of each set are arranged so as to face each other in the front-rear direction. Each locking portion 307 is formed in a rectangular plate shape when viewed from one side in the front-rear direction. Each locking portion 307 has a claw 307A that protrudes in a direction approaching the paired locking portion 307 at its tip.

Further, the bottom plate 30A has a second receiving portion 308 for receiving the power cord 6 together with the first receiving portion 206 of the first outer cover 2A near the left end of the upper surface thereof (see FIG. 5A). The second receiving portion 308 has a pair of standing pieces 308A facing each other in the front-rear direction and a connecting piece 308B connecting the pair of standing pieces 308A. The second receiving portion 308 further has two protrusions 308C protruding from each standing piece 308A toward the other standing piece 308A. In short, the second receiving portion 308 has a total of four protrusions 308C.

Each standing piece 308A has a rectangular plate shape when viewed from one side in the front-rear direction, and projects upward. The connecting piece 308B has a semicircularly recessed recess at the upper end when viewed from one side in the left-right direction. The tip portion of the sheath 60 that bundles the three electric wires 61 to 63 (see FIG. 4) of the power cord 6 is placed in the recess in the body 10. The four protrusions 308C are in contact with the tip portion of the sheath 60 and regulate the displacement of the power cord 6 with respect to the front-rear direction. The first receiving portion 206 of the first outer cover 2A is housed in a storage space surrounded by a second side plate 32A, a pair of standing pieces 308A, and a connecting piece 308B. The tip portion of the sheath 60 is displaced in the vertical direction by the connecting piece 308B and the pair of walls 206A of the first receiving portion 206. In short, the first outer cover 2A and the first outer body 3A are configured to stably support the sheath 60 of the power cord 6 in the body 10.

Further, the bottom plate 30A has two storage recesses 36 (36A, 36B) for accommodating the two suction portions 9A and 9B, respectively, near both ends of the lower surface in the left-right direction (see FIG. 3). ). Specifically, the suction portion 9A is housed in the storage recess 36A provided near the left end of the lower surface of the bottom plate 30A, and the suction portion 9B is housed in the storage recess 36B provided near the right end of the lower surface of the bottom plate 30A. It is housed inside. Each accommodation recess 36 is formed in a rectangular shape when viewed from one side in the vertical direction, and is recessed upward.

Further, the bottom plate 30A is formed so that the surface of the region corresponding to each accommodation recess 36 is one step higher than the surrounding surface on the upper surface thereof. In other words, the bottom plate 30A has two projecting bases 37 (37A, 37B) protruding upward in a rectangular shape on the upper surface thereof (see FIG. 5A). Each protrusion 37 and the rear first side plate 31A face each other so that a gap is formed between them. On the other hand, each protrusion 37 and the front first side plate 31A are integrally formed without a gap.

The bottom plate 30A has a locking claw 360 that protrudes downward and further protrudes inward at a position closer to the front on the inner bottom surface of each storage recess 36 (see FIG. 3). Further, the bottom plate 30A has a locking hole 361 penetrating to the rear end surface of the projecting base 37 on the inner side surface on the rear side of each accommodation recess 36 (see FIG. 5A).

Here, as shown in FIG. 5A, the bottom plate 30A of the present embodiment has a pair of drainage ports 18 (18A, 18A) and a pair of drainage ports 18 that connect the external space of the body 10 and the internal space of the body 10. It has (18B, 18B). The pair of drainage ports 18A penetrate in the vertical direction in the vicinity of the front end on the upper end surface of the protrusion base 37A, and are arranged side by side in the horizontal direction. The pair of drainage ports 18B penetrate in the vertical direction in the vicinity of the front end on the upper end surface of the protrusion base 37B, and are arranged side by side in the horizontal direction. The pair of drainage ports 18A are arranged on the left and right sides of the locking claws 360 in the storage recess 36A when the bottom plate 30A is viewed from below. Further, the pair of drainage ports 18B are also arranged on the left and right sides of the locking claws 360 in the storage recess 36B when the bottom plate 30A is viewed from below.

The pair of first side plates 31A project upward from both ends of the bottom plate 30A in the front-rear direction. Each first side plate 31A is formed in an elongated rectangular plate shape when viewed from one side in the front-rear direction. The second side plate 32A projects upward from the left end of the bottom plate 30A. The second side plate 32A is formed in a rectangular plate shape when viewed from one side in the left-right direction, and has a second semicircular groove 320 (see FIG. 4) recessed downward in a semicircular shape. The second semicircular groove 320 forms one through hole together with the first semicircular groove 220 of the first outer cover 2A. The power cord 6 is pulled out from the inside of the body 10 through the wire hole.

(2.2.4) Inner cover Each inner cover 4A is made of a thermosetting resin such as urea resin. As shown in FIGS. 1 and 4, each inner cover 4A is formed in a flat rectangular parallelepiped shape as a whole. Each inner cover 4A has a main body portion 40 having a rectangular outer shape when viewed from above, and a flange portion 41 protruding outward from the peripheral edge of the main body portion 40. The flange portion 41 is not formed near the center of the front edge and the trailing edge of the main body 40 in the left-right direction. In other words, each inner cover 4A has recesses 42, 42 recessed toward the main body 40 at its front end and rear end (only the front recess 42 is shown in FIG. 1).

As shown in FIG. 1, the main body 40 of each inner cover 4A has a first insertion port 21. Specifically, the first insertion port 21 is composed of a pair of blade insertion holes 210 and a terminal insertion hole 211 as an example. The pair of blade insertion holes 210 are holes for inserting the pair of blades 101A of the insertion plug 101, respectively, and penetrate the main body 40 in the vertical direction. The terminal insertion hole 211 is a hole for inserting the ground terminal 101B of the insertion plug 101, and penetrates the main body 40 in the vertical direction.

The main body 40 of each inner cover 4A has three accommodating portions recessed upward so that the connection portions 512 and 522 and the grounding connection portion 532 of the terminal block 5 described later can be accommodated one-to-one on the lower surface thereof. ing. The connecting portions 512 and 522 and the grounding connecting portion 532 are housed in the three accommodating portions so as to face the pair of blade insertion holes 210 and the terminal insertion holes 211, respectively.

The dimensional relationship is defined so that the external dimensions of the main body 40 when viewed from one side in the vertical direction are slightly smaller than the opening dimensions of the through hole 201 of the first outer cover 2A. Each inner cover 4A is inserted into the through hole 201 and attached to the first outer cover 2A so that the upper end surface of the main body 40 is substantially flush with the upper surface of the top plate 20A of the first outer cover 2A. .. Specifically, a pair of hooking portions 204 provided on the front edge and a trailing edge of the through hole 201 pass through a pair of recesses 42 of the inner cover 4A, and the claws 204A of each hooking portion 204 of the main body portion 40. Each inner cover 4A is attached to the first outer cover 2A by being hooked on the lower surface. In short, each inner cover 4A is prevented from falling off by a pair of hooking portions 204. Further, since the flange portion 41 is caught on the peripheral edge portion of the through hole 201, it is also prevented that the inner cover 4A falls off through the through hole 201 in the upward direction.

(2.2.5) Terminal block As shown in FIG. 4, the terminal block 5 has a first terminal plate 51, a second terminal plate 52, and a third terminal plate 53. Each of the first terminal plate 51, the second terminal plate 52, and the third terminal plate 53 is formed by, for example, bending a single metal plate made of brass. In the present embodiment, one of the first terminal plate 51 and the second terminal plate 52 is a voltage pole, the other is a ground side pole, and the third terminal plate 53 is a ground pole.

As shown in FIG. 4, the first terminal plate 51 has a strip-shaped conductive portion 511 extending along the left-right direction and four connecting portions 512 arranged at equal intervals along the left-right direction. There is. Further, the first terminal plate 51 has a rectangular plate-shaped fixing piece 513 and a rectangular plate-shaped protrusion 514. The conductive portion 511 is housed in the middle body 4B with its thickness direction oriented along the front-rear direction. The four connecting portions 512 are connected to the conductive portion 511 and are electrically connected to the conductive portion 511. Each connection portion 512 is a blade receiving spring having a pair of contact pieces, and the plug blade 101A and the connection portion 512 are electrically connected by sandwiching the plug blade 101A of the insertion plug 101 between the pair of contact pieces. Will be done.

The fixed piece 513 projects forward at substantially the center of the conductive portion 511 in the left-right direction. The fixing piece 513 is oriented so that its thickness direction is along the vertical direction. The fixing piece 513 has a screw hole penetrating along the thickness direction thereof. The electric wire 61 of the power cord 6 is fixed to the first terminal plate 51 by, for example, inserting a screw 515 inserted into a hole of a crimp terminal attached to the tip thereof into a screw hole of a fixing piece 513 and fixing the screw. Is electrically connected to.

The protrusion 514 projects forward at a position closer to the right end than the substantially center in the left-right direction of the conductive portion 511. Like the fixed piece 513, the protruding piece 514 is oriented so that its thickness direction is along the vertical direction. The protrusion 514 has a hole penetrating along the thickness direction thereof. One of the pair of lead wires 120 extending from the second substrate 12 is electrically connected to the first terminal plate 51 by being inserted into the hole of the protrusion piece 514 and fixed by solder or the like. ..

Similar to the first terminal plate 51, the second terminal plate 52 has a strip-shaped conductive portion 521 extending in the left-right direction and four connecting portions 522 arranged at equal intervals in the left-right direction. doing. Further, the second terminal plate 52 has a rectangular plate-shaped fixing piece 523 and a rectangular plate-shaped protrusion 524. The conductive portion 521 is housed in the middle body 4B with its thickness direction directed along the front-rear direction. The four connecting portions 522 are connected to the conductive portion 521 and are electrically connected to the conductive portion 521. Each connection portion 522 is a blade receiving spring having a pair of contact pieces, and the plug blade 101A and the connection portion 522 are electrically connected by sandwiching the plug blade 101A of the insertion plug 101 between the pair of contact pieces. Will be done.

The fixed piece 523 projects rearward at substantially the center of the conductive portion 521 in the left-right direction. The fixing piece 523 is oriented so that its thickness direction is along the vertical direction. The fixing piece 523 has a screw hole penetrating along the thickness direction thereof. The electric wire 62 of the power cord 6 is fixed to the second terminal plate 52 by, for example, inserting a screw 525 inserted into a hole of a crimp terminal attached to the tip thereof into a screw hole of a fixing piece 523 and fixing the screw. Is electrically connected to.

The protrusion 524 projects to the right at the right end of the conductive portion 521. Like the fixed piece 523, the protruding piece 524 is oriented so that its thickness direction is along the vertical direction. The protrusion 524 has a hole penetrating along the thickness direction thereof. The other of the pair of lead wires 120 extending from the second substrate 12 is electrically connected to the second terminal plate 52 by being inserted into the holes of the protrusions 524 and fixed by solder or the like. ..

As shown in FIG. 4, the third terminal plate 53 includes a strip-shaped grounding conductive portion 531 extending in the left-right direction and four grounding connecting portions 532 arranged at equal intervals in the left-right direction. have. Further, the third terminal plate 53 has a rectangular plate-shaped fixing piece 533. The grounding conductive portion 531 is housed in the middle body 4B with its thickness direction directed along the front-rear direction. The four grounding connection portions 532 are connected to the grounding conductive portion 531 and are electrically connected to the grounding conductive portion 531. Each grounding connection portion 532 is a blade receiving spring having a pair of contact pieces, and the grounding terminal 101B and the grounding connection portion 532 are connected by sandwiching the grounding terminal 101B of the plug 101 between the pair of contact pieces. It is electrically connected.

The fixing piece 533 projects rearward at a position closer to the right end than the substantially center in the left-right direction of the grounding conductive portion 531. The fixing piece 533 is oriented so that its thickness direction is along the vertical direction. The fixing piece 533 has a screw hole penetrating along the thickness direction thereof. The electric wire 63 of the power cord 6 is fixed to the third terminal plate 53 by, for example, inserting a screw 535 inserted into a hole of a crimp terminal attached to the tip thereof into a screw hole of a fixing piece 533 and fixing the screw. Is electrically connected to.

In the table tap 1 of the present embodiment, the power plug of the power cord 6 is connected to an outlet provided on a wall or the like to generate electric power from a power source such as a commercial AC power source (for example, 100 V, 60 Hz). Can be supplied to.

(2.2.6) Middle body The middle body 4B is made of a thermosetting resin such as urea resin, like the inner cover 4A. The middle body 4B is formed in the shape of a flat rectangular box with an open upper surface. The middle body 4B is configured to individually accommodate the first terminal plate 51, the second terminal plate 52, and the third terminal plate 53 of the terminal block 5. The middle body 4B has an insulating wall that projects upward from the inner bottom surface thereof. The insulating wall is formed so as to electrically insulate the adjacent connecting portions 512 and the connecting portions 522 corresponding to the first insertion ports 21. Further, the insulating wall is formed so as to electrically insulate four grounding connection portions 532 arranged along the left-right direction from the connection portions 512 and 522 of each set.

(2.2.7) Adsorption section Each of the suction sections 9A and 9B has a flat rectangular plate-shaped permanent magnet 91 and a yoke 92, as shown in FIG. The lower surface of the yoke 92 and both front and rear surfaces are open, and the yoke 92 has an inverted U shape when viewed from one of the front and rear directions. Each of the permanent magnet 91 and the yoke 92 has a hole penetrating in the thickness direction at the center in the front-rear direction and the left-right direction. With the permanent magnet 91 housed in the yoke 92, for example, a crimping pin is inserted through the holes of the permanent magnet 91 and the yoke 92, and the end of the pin is crimped so that the permanent magnet 91 is accommodated in the yoke 92. It is fixed to. The yoke 92 has a projecting piece 920 (see FIG. 4) projecting rearward at its rear end. Each suction portion 9 locks the projecting piece 920 to the locking hole 361 of the housing recess 36, and further locks the front end of the yoke 92 to the locking claw 360 of the housing recess 36, whereby the first outer It is attached to the body 3A. The table tap 1 can be attached to an iron desk, a locker, or the like by the suction portions 9A and 9B and the suction portion 9C of the second block 1B described later.

(2.3) Second block (2.3.1) Overall configuration of the second block The second block 1B has two USB ports capable of supplying DC power by inserting the USB plug 102. .. Specifically, the second block 1B has a second outer cover 2B, a second outer body 3B, two USB connectors 7 (7A, 7B), and a pair of covers 8 (8A, 8B). doing. Further, the second block 1B includes a first substrate 11, a conversion circuit, and a second substrate 12. Further, the second block 1B includes two elastic materials 13 and 13, a display element 14, and a suction portion 9 (9C).

(2.3.2) First Board and Second Board As shown in FIGS. 1 and 4, two USB connectors 7 (7A, 7B) are located near the left end of the upper surface (mounting surface) of the first board 11. It is a printed wiring board mounted on. The first substrate 11 has a substantially rectangular plate shape that is elongated along the left-right direction when viewed from one side in the up-down direction. The first substrate 11 has recesses 111 and 111 recessed inward at the right ends of its front edge and trailing edge. Further, the first substrate 11 has recesses 112 and 112 recessed inward at the left ends of its front edge and trailing edge. Further, the first substrate 11 has an insertion hole 110 penetrating in the thickness direction thereof at the center in the front-rear direction and at a position slightly to the right (see FIG. 1). The insertion hole 110 is a hole through which the boss 207 (see FIG. 3) in the second outer cover 2B can be inserted.

On the mounting surface of the first substrate 11, a display element 14 that emits display light according to the supply state of DC power to the conductor 1020 of the USB plug 102 is mounted. In the present embodiment, the display element 14 is mounted on the first substrate 11 at an end portion (right end portion) opposite to the second substrate 12 in the arrangement direction in which the first substrate 11 and the second substrate 12 are arranged side by side. There is. The display element 14 is, for example, a surface mount type LED (Light Emitting Diode) chip, and is connected in series to the USB connector 7. That is, the display element 14 lights up when the USB plug 102 is connected to the USB connector 7 and becomes energized, and turns off when the USB plug 102 is not connected to any of the USB connectors 7. Therefore, through the display element 14, it is possible to confirm the energization and determine whether or not there is a circuit abnormality on the substrate. Further, a resistor is connected in series to the display element 14 to limit the current flowing through the display element 14.

Each USB connector 7 is, for example, a connector (socket) that can be connected to a USB type A plug (see FIGS. 12 to 14). However, the type of USB connector is not particularly limited. In the present embodiment, the USB connectors 7A and 7B are arranged on the first substrate 11 so that their orientations are aligned. That is, the orientations of the plastic substrates on which the four terminals (VBUS, -DATA, + DATA, GND) in the USB connectors 7A and 7B are formed are aligned so that they are arranged closer to the same side in the left-right direction. ing. Therefore, the USB marks on the surfaces of the two USB plugs 102 face the same direction (for example, to the right) in the left-right direction when connected to the two USB connectors 7A and 7B, respectively. Become.

The power supply terminal (VBUS) and ground terminal (GND) of each USB connector 7 are connected to a wiring conductor (for example, copper foil) formed on the first substrate 11 by solder. Each USB connector 7 is electrically connected to the DC output end on the second board 12 side via a wiring conductor of the first board 11 and a plurality of lead wires 121 (see FIG. 4).

The second board 12 is a printed wiring board on which a plurality of electronic components 15 constituting a conversion circuit are mounted. The conversion circuit uses, for example, AC power (for example, 100V) received from the terminal block 5 side to generate a high-frequency AC voltage, and then generates a DC voltage rectified and smoothed by a diode, an electrolytic capacitor, or the like. Then, the conversion circuit outputs a stabilized DC voltage (for example, 5V) by performing switching adjustment with respect to the generated DC voltage. In short, the conversion circuit is configured to convert AC power from the terminal block 5 side into DC power. As shown in FIG. 4, the pair of AC input ends of the conversion circuit are connected to the protrusion 514 of the first terminal plate 51 and the protrusion 524 of the second terminal plate 52 in the terminal block 5 via the lead wires 120 and 120. Are electrically connected to each other. The conversion circuit supplies a stabilized DC voltage of 5 V to the first substrate 11 side through the DC output terminal.

(2.3.3) Second outer cover The second outer cover 2B is formed integrally with the first outer cover 2A of the first block 1A, and constitutes the outer cover 2 together with the first outer cover 2A. .. Therefore, the second outer cover 2B is made of a thermoplastic resin such as ABS resin, like the first outer cover 2A. As shown in FIG. 1, the second outer cover 2B is formed of a top plate 20B, a pair of first side plates 21B and 21B, a second side plate 22B, and a connecting plate 23B in a flat box shape in which the lower surface and the left surface are open. It is formed. Both the left ends of the connecting plate 23B and the pair of first side plates 21B are connected to the first outer cover 2A of the first block 1A.

The top plate 20B has a rectangular plate shape that is long in the left-right direction when viewed from one side in the up-down direction. The top plate 20B has two paired second insertion ports 22 on its first end surface 2001 (upper surface). Each second insertion port 22 penetrates in the thickness direction of the top plate 20B. Each second insertion port 22 has a rectangular shape when viewed from one side in the vertical direction. The second outlets 22, 22 are provided side by side in the left-right direction so that their respective longitudinal directions are along the front-rear direction. In the following, when the two second outlets 22 are distinguished from each other, one of the second outlets 22 arranged closer to the first block 1A is referred to as a "second outlet 221", and the other is referred to as a "second outlet 221". It is also called "second outlet 222" (see FIG. 7A).

The top plate 20B has a weir portion 23 protruding upward from the region surrounding each of the second insertion ports 22 in the first end surface 2001 (see FIG. 7A). Each weir 23 has a rectangular frame shape due to four walls when viewed from one side in the vertical direction. Hereinafter, the four walls are referred to as a front wall 231 and a rear wall 232, a first side wall (opposing wall) 233, and a second side wall 234. Both the first side wall 233 and the second side wall 234 are elongated in the front-rear direction. The width dimension of the first side wall 233 in the left-right direction is smaller than the width dimension of the second side wall 234 in the left-right direction.

Each weir 23 has a flat upper end surface 230 (upper end surfaces of the four walls 231 to 234) (see FIG. 7B). The upper end surface 230 is located higher than the surrounding flat first end surface 2001. The two weirs 23 adopt a structure that is plane-symmetrical in the left-right direction. That is, in the two weirs 23, the two narrow first side walls 233 are adjacent to each other and face each other. On the other hand, the two wide second side walls 234 are located apart from each other.

Further, the top plate 20B has a groove 240 as shown in FIG. 7A. The groove 240 extends along the front-rear direction. The groove 240 is formed by the first side wall 233 of the two weirs 23 which are adjacent to each other and face each other. That is, the bottom surface of the groove 240 is a part of the first end surface 2001.

As shown in FIG. 7A, the top plate 20B has an accommodating portion 241 provided so as to be adjacent to the second side wall 234 of each weir portion 23. The accommodating portions 241,241 are recessed downward so that the two elastic members 13 can be accommodated one-to-one. Each accommodating portion 241 is elongated along the left-right direction when viewed from one of the up-down directions.

Further, as shown in FIG. 7A, the top plate 20B has recesses 242 and 242 recessed downward on the front edge and the trailing edge of the first end surface 2001. The recesses 242 and 242 are the two diagonal corners of the four corners in one rectangular projection area in which both the covers 8A and 8B with respect to the first end surface 2001 are combined when viewed from one of the vertical directions. It is provided near the left front corner and the right rear corner). Each recess 242 extends along the left-right direction when viewed from one of the up-down directions. Each recess 242 is configured to guide the guide piece 87, which will be described later, of the corresponding cover 8 along the left-right direction.

As shown in FIG. 7A, the top plate 20B has a through hole 243 penetrating in the thickness direction near the right end. The through hole 243 has an elongated rectangular shape in the front-rear direction when viewed from one side in the vertical direction. The through hole 243 is arranged so as to face the display element 14 mounted on the first substrate 11. A translucent lamp cover 16 is attached to the top plate 20B so as to close the through hole 243. The lamp cover 16 is made of a translucent resin such as an acrylic resin. The light radiated from the display element 14 is emitted to the outside of the body 10 through the lamp cover 16.

As shown in FIG. 6, the top plate 20B has a boss 207 protruding downward on its lower surface 2002. The boss 207 is cylindrical and has screw holes. The boss 207 is provided on the left side of the through hole 243. The boss 207 comes into contact with the boss 310 described later of the second outer body 3B.

Further, as shown in FIG. 6, the top plate 20B has a plurality of regulating ribs protruding downward on the lower surface 2002 thereof. Specifically, the top plate 20B has a pair of first regulation ribs 251 and a pair of second regulation ribs 252, a pair of third regulation ribs 253, and a pair of fourth regulation ribs 254. These regulation ribs are configured to sandwich the first substrate 11 in the vertical direction together with the regulation ribs 371 to 374 (described later) provided on the second outer body 3B, and the first substrate 11 with respect to the vertical direction. Regulate displacement.

As shown in FIG. 6, the two first regulation ribs 251 are formed so as to be aligned in the front-rear direction at the right end of the lower surface 2002 of the top plate 20B. Each first regulation rib 251 has a strip-like shape extending long in the vertical direction, and is integrally formed with the second side plate 22B. The vertical dimension of each first regulation rib 251 is substantially equal to the vertical dimension of the second side plate 22B (see FIG. 3). Each first regulation rib 251 faces the right end of the first substrate 11. Each first regulation rib 251 may be in contact with the right end of the first substrate 11 or may be slightly separated.

As shown in FIG. 6, the second regulation rib 252, the third regulation rib 253, and the fourth regulation rib 254 are arranged in this order from the right end on the front edge and the rear edge of the lower surface 2002 of the top plate 20B. There is.

The two second regulation ribs 252 have a strip-like shape extending long in the vertical direction and face each other in the front-rear direction. Each second regulation rib 252 is formed integrally with the first side plate 21B. The vertical dimension of each second regulation rib 252 is substantially equal to the vertical dimension of the first side plate 21B (see FIG. 3). Further, each second regulation rib 252 is formed in a substantially L shape when viewed from one side in the left-right direction. That is, each second regulation rib 252 has a recess 252A (see FIG. 3) recessed in a direction away from the other second regulation rib 252 at an end facing the other second regulation rib 252. There is. Displacement of the first substrate 11 in the front-rear direction and the upward direction is regulated by being housed in the recess 252A of each second regulation rib 252. Each second regulation rib 252 is in contact with the first substrate 11.

The two third regulation ribs 253 have a rectangular plate shape (see FIG. 3) when viewed from one side in the left-right direction, and face each other in the front-rear direction. Each third regulation rib 253 is formed integrally with the first side plate 21B. The vertical dimension of each third regulation rib 253 is substantially equal to, for example, the vertical dimension of the USB connector 7. The lower end of each third regulation rib 253 faces the upper surface of the first substrate 11. Each third regulation rib 253 is in contact with the first substrate 11.

The two fourth regulation ribs 254 have a T-shape when viewed from one side in the vertical direction and face each other in the front-rear direction. The ends of the T-shaped fourth regulating ribs 254 extending along the front-rear direction are integrally formed with the first side plate 21B. The vertical dimension of each of the fourth regulation ribs 254 is substantially equal to, for example, the vertical dimension of the USB connector 7. The lower end of each of the fourth regulation ribs 254 faces the upper surface of the first substrate 11. Each fourth regulation rib 254 is in contact with the first substrate 11.

Further, as shown in FIG. 6, the top plate 20B has a plurality of reinforcing ribs protruding toward the first substrate 11 on the lower surface 2002 thereof. Specifically, the top plate 20B has one first reinforcing rib 261 and two sets of a pair of second reinforcing ribs 262 (that is, a total of four). These reinforcing ribs are provided around the second insertion ports 22, 22 and suppress the deformation of the top plate 20B in the vertical direction due to the insertion and removal of the USB plug 102. The first reinforcing rib 261 has a rectangular plate shape, and is arranged between the two second insertion ports 22 when viewed from the lower surface 2002 of the top plate 20B. The pair of second reinforcing ribs 262 of each set has a rectangular plate shape, and is arranged in the vicinity of the front edge and the trailing edge of the corresponding second insertion port 22, respectively.

Here, as shown in FIGS. 3 and 6, the top plate 20B of the present embodiment has a first convex wall 171 and a second convex wall 172 on its lower surface 2002. The first convex wall 171 and the second convex wall 172 are formed so as to project downward from the lower surface 2002. The first convex wall 171 and the second convex wall 172 form a partition wall 17 together with the third convex wall 173 described later of the second outer body 3B. The first convex wall 171 is formed in an L-shaped plate shape when viewed from one side in the left-right direction (see FIG. 3). That is, the first convex wall 171 is composed of a first portion 171A extending in the front-rear direction and a second portion 171B extending in the vertical direction from the front end of the first portion 171A. The second portion 171B is formed integrally with the first side plate 21B on the front side. The second convex wall 172 faces the second portion 171B of the first convex wall 171 in the front-rear direction. The second convex wall 172 is formed integrally with the first side plate 21B on the rear side.

The lower end of the second portion 171B of the first convex wall 171 and the lower end of the second convex wall 172 both extend to the lower end of the first side plate 21B. Specifically, the second portion 171B and the second convex wall 172 of the first convex wall 171 project below the notch portion 270 (which constitutes the slit 27) described later of each first side plate 21B. It extends without.

Further, as shown in FIG. 6, a convex wall is not formed between the rear end of the first portion 171A of the first convex wall 171 and the second convex wall 172, and a gap exists. Therefore, when the third convex wall 173 of the second outer body 3B is combined with the first convex wall 171 and the second convex wall 172 in the vertical direction, the insertion port 174 for passing the plurality of lead wires 121 (see FIG. 3). Is formed.

Further, as shown in FIG. 6, the top plate 20B has five extending ribs 255 protruding downward in the region on the left side of the first convex wall 171 and the second convex wall 172 of the lower surface 2002. There is. Each of the five extending ribs 255 extends long in the vertical direction and slightly protrudes from the lower end of the first side plate 21B. These extending ribs 255 are configured to sandwich the second substrate 12 in the vertical direction together with a plurality of supporting ribs 375 described later in the second outer body 3B, and regulate the displacement of the second substrate 12 in the vertical direction. ..

As shown in FIGS. 3 and 6, the connecting plate 23B connects the left end of the top plate 20B and the right end of the top plate 20A on the first block 1A side below the left end. The connecting plate 23B is formed in a rectangular plate shape and is slightly inclined with respect to the vertical direction. The connecting plate 23B has a boss 208 projecting downward on its inner surface (lower surface). The boss 208 is cylindrical and has screw holes. The boss 208 comes into contact with the boss 311 described later of the second outer body 3B.

The first side plates 21B and 21B project downward from both ends of the top plate 20B in the front-rear direction. Each first side plate 21B is formed in the shape of an elongated rectangular plate along the left-right direction when viewed from one of the front-rear directions. At the left end of the first side plates 21B and 21B, the lower half is continuously connected to the right end of the first side plates 21A and 21A of the first outer cover, and the upper half is continuously connected to the front and rear ends of the connecting plate 23B. .. The vertical dimension of each first side plate 21B is larger than the vertical dimension of the first side plate 21A.

As shown in FIG. 7B, each first side plate 21B has a recess 280 on its second end surface 2003 (outer surface) for forming a guide groove 28 together with the second outer body 3B. The recess 280 is slightly recessed upward from the lower end of the first side plate 21B. The recess 280 is elongated in the left-right direction. When viewed from one side in the front-rear direction, the recess 280 has a straight line drawn straight down from the center position (that is, the groove 240) between the two second insertion ports 22 in the left-right direction in the left-right direction of the recess 280. It is arranged so as to pass through the center.

Here, the recess 280 has a pair of notches 270. Each notch 270 is recessed further upward than the upper surface in the recess 280. The pair of notch portions 270 are arranged so as to be arranged along the left-right direction on the upper surface in the recess 280. The pair of notch portions 270 are arranged so as to be symmetrical with respect to the straight line when viewed from one of the front-rear directions. The guide groove 28 and the slit 27 will be described in detail in the section “(2.3.5) Slit and guide groove”.

(2.3.4) Second outer body The second outer body 3B is formed integrally with the first outer body 3A of the first block 1A, and constitutes the outer body 3 together with the first outer body 3A. .. Therefore, the second outer body 3B is made of a thermoplastic resin such as ABS resin, like the first outer body 3A. As shown in FIG. 5A, the second outer body 3B is formed of a bottom plate 30B, a pair of first side plates 31B, and a second side plate 32B in a flat box shape in which the upper surface and the left surface are open.

The pair of first side plates 31B project upward from both ends of the bottom plate 30B in the front-rear direction. Each first side plate 31B is formed in an elongated rectangular plate shape when viewed from one side in the front-rear direction. At the left end thereof, each first side plate 31B is continuously connected to the right end of the first side plate 31A of the first outer body 3A of the first block 1A. The vertical dimension of each first side plate 31B is equal to the vertical dimension of the first side plate 31A. The second side plate 32B projects upward from the right end of the bottom plate 30B. The second side plate 32B is formed in a rectangular plate shape when viewed from one side in the left-right direction.

The bottom plate 30B has a rectangular plate shape that is long in the left-right direction when viewed from one side in the up-down direction. The bottom plate 30B has two bosses 310 and 311 projecting upward on its upper surface (see FIG. 5A). Each boss has a cylindrical shape and has an insertion hole 304 penetrating in the vertical direction.

The boss 310 is provided near the right end on the upper surface of the bottom plate 30B, and is configured to come into contact with the tip of the boss 207 on the top plate 20B of the second outer cover 2B. Here, since the boss 207 on the top plate 20B is in contact with the boss 310 in a state of being inserted into the insertion hole 110 (see FIG. 1) provided in the first substrate 11, the first substrate 11 is Displacement in the front-back and left-right directions is regulated.

The boss 311 is provided near the left end on the upper surface of the bottom plate 30B, and is configured to come into contact with the tip of the boss 208 on the connecting plate 23B of the second outer cover 2B. Here, since the left end of the second substrate 12 is in contact with the boss 311, further displacement to the left is restricted.

The bottom plate 30B has one accommodating recess 36 (36C) on its lower surface for accommodating the suction portion 9 (9C) (see FIG. 3). The storage recess 36C is provided near the right end of the lower surface of the bottom plate 30B. The storage recess 36C is formed in a rectangular shape when viewed from one side in the vertical direction, and is recessed upward.

Further, the bottom plate 30B is formed so that the surface of the region corresponding to the accommodating recess 36C is one step higher than the surrounding surface on the upper surface thereof. In other words, the bottom plate 30B has a protruding base 37 (37C) that protrudes upward in a rectangular shape on the upper surface thereof (see FIGS. 5A and 5B). The protrusion 37C and the rear first side plate 31B face each other so that a gap is formed between them. On the other hand, the projecting base 37C and the front first side plate 31A are integrally formed without a gap. The bottom plate 30B also has a locking claw 360 and a locking hole 361 on the inner bottom surface of the accommodating recess 36C, similarly to the accommodating recesses 36A and 36B of the bottom plate 30A.

Here, as shown in FIGS. 5A and 5B, the bottom plate 30B is a pair of drainage ports (drainage) connecting the external space of the body 10 and the internal space of the body 10 in the same manner as the drainage ports 18A and 18B of the bottom plate 30A. It has holes) 18 (18C, 18C). The pair of drainage ports 18C penetrate in the vertical direction near the front end of the upper end surface of the protrusion base 37C, and are arranged side by side in the horizontal direction.

Further, as shown in FIG. 5A, the bottom plate 30B has a plurality of regulating ribs protruding upward on the upper surface thereof. Specifically, the bottom plate 30B has a pair of first regulation ribs 371, a pair of second regulation ribs 372, a pair of third regulation ribs 373, and a pair of fourth regulation ribs 374. These regulating ribs are configured to sandwich the first substrate 11 in the vertical direction together with the plurality of regulating ribs 251 to 254 of the second outer cover 2B, and regulate the displacement of the first substrate 11 in the vertical direction.

As shown in FIG. 5A, the first regulation rib 371, the second regulation rib 372, the third regulation rib 373, and the fourth regulation rib 374 are in this order from the right end at the front edge and the trailing edge of the upper surface of the bottom plate 30B. Is located in.

As shown in FIG. 5A, the two first regulation ribs 371 face each other in the front-rear direction near the right end of the upper surface of the bottom plate 30B (left side of the protrusion 37C). Each first regulation rib 371 extends long in the vertical direction and is formed integrally with the first side plate 31B. Each first regulation rib 371 is formed in a T shape when viewed from one side in the vertical direction.

The vertical dimension of each first regulation rib 371 is larger than the vertical dimension of the first side plate 31B. That is, the upper end of each first regulation rib 371 protrudes above the upper end of the first side plate 31B (see FIG. 1). Further, as shown in FIG. 1, each first regulation rib 371 has a support recess 371A that supports the first substrate 11 at the upper end thereof. That is, the upper end rear portion of the first regulation rib 371 on the front side and the upper end front portion of the first regulation rib 371 on the rear side are cut out. By placing the first substrate 11 on the bottom surface of the support recesses 371A and 371A, the displacement in the front-rear direction and the downward direction is restricted. Further, each first regulation rib 371 has a support projecting piece 371B projecting to the left, as shown in FIG. Since the left end surface of each recess 111 of the first substrate 11 is in contact with the support projecting piece 371B, the displacement of the first substrate 11 to the right is also restricted.

As shown in FIG. 5A, the two second regulation ribs 372 face each other in the front-rear direction at a position slightly to the right of the center in the left-right direction of the upper surface of the bottom plate 30B. Each of the second regulation ribs 372 has a strip-like shape extending long in the vertical direction, and is formed integrally with the first side plate 31B. The upper end of each second regulation rib 372 protrudes above the upper end of the first side plate 31B (see FIG. 1). However, the vertical dimension of the second regulation rib 372 is smaller than the vertical dimension of the first regulation rib 371, and the distance from the upper surface of the bottom plate 30B to the inner bottom surface of the support recess 371A of the first regulation rib 371. Approximately equal.

The lower surface of the first substrate 11 is in contact with the second regulation ribs 372 and 372. That is, the second regulation rib 372 regulates the downward displacement of the first substrate 11 together with the other regulation ribs 371, 373, and 374.

Here, as shown in FIG. 4, the second regulation ribs 372 and 372 are slightly to the right of the USB connector 7B on the right side mounted on the first substrate 11 when viewed from one side in the vertical direction. It is placed in position. Therefore, the stress received by the first substrate 11 when the USB plug 102 is inserted can be effectively released to the body 10 side. In short, the deformation of the first substrate 11 can be suppressed.

As shown in FIG. 5A, the two third regulation ribs 373 face each other in the front-rear direction at a position on the left side of the second regulation rib 372. Each third regulation rib 373 has a strip-like shape extending long in the vertical direction, and is integrally formed with the first side plate 31B. The vertical dimension of the third regulation rib 373 is substantially equal to the vertical dimension of the second regulation rib 372. The lower surface of the first substrate 11 is in contact with the third regulation ribs 373 and 373. That is, the third regulation rib 373 regulates the downward displacement of the first substrate 11 together with the other regulation ribs 371, 372 and 374.

Here, as shown in FIG. 4, the third regulation ribs 373 and 373 are arranged at positions between the USB connectors 7A and 7B mounted on the first substrate 11 when viewed from one of the vertical directions. Has been done. Therefore, the stress received by the first substrate 11 when the USB plug 102 is inserted can be effectively released to the body 10 side. In short, the third regulation rib 373, together with the second regulation rib 372, can suppress the deformation of the first substrate 11.

As shown in FIG. 5A, the two fourth regulation ribs 374 face each other in the front-rear direction near the center of the upper surface of the bottom plate 30B in the left-right direction. Each of the fourth regulation ribs 374 extends long in the vertical direction and is formed integrally with the first side plate 31B. Further, each of the fourth regulation ribs 374 is formed in a T shape when viewed from one side in the vertical direction.

The upper end of each of the fourth regulation ribs 374 protrudes above the upper end of the first side plate 31B (see FIG. 1). Further, each of the fourth regulation ribs 374 has a support recess 374A at the upper end thereof that supports the first substrate 11. That is, the upper end rear portion of the fourth regulation rib 374 on the front side and the upper end front portion of the fourth regulation rib 374 on the rear side are cut out. By placing the first substrate 11 on the bottom surface of the support recesses 374A and 374A, the displacement in the front-rear direction and the downward direction is restricted. Further, each fourth regulation rib 374 has a support projecting piece 374B projecting to the right, as shown in FIG. Since the right end surface in each recess 112 of the first substrate 11 is applied to the support projecting piece 374B, the displacement of the first substrate 11 to the left is also restricted.

Further, as shown in FIG. 4, the fourth regulation ribs 374 and 374 are arranged at positions slightly to the left of the USB connector 7A mounted on the first substrate 11 when viewed from one side in the vertical direction. Has been done. Therefore, the stress received by the first substrate 11 when the USB plug 102 is inserted can be effectively released to the body 10 side. In short, the fourth regulation rib 374 can suppress the deformation of the first substrate 11 together with the other regulation ribs 372 and 373.

Here, as shown in FIG. 5A, the bottom plate 30B of the present embodiment has a third convex wall 173 on its lower surface. The third convex wall 173 is formed so as to project upward from the lower surface of the bottom plate 30B. The third convex wall 173 constitutes a partition wall 17 together with the first convex wall 171 and the second convex wall 172 of the second outer cover 2B. The third convex wall 173 is formed in a substantially rectangular plate shape when viewed from one side in the left-right direction. The third convex wall 173 is formed so that the upper end thereof protrudes above the upper end of the first side plate 31B and is further arranged above the upper surface of the first substrate 11. The vertical dimension of the third convex wall 173 is slightly larger than, for example, the vertical dimension of the first regulation rib 371.

The lower part of the front end and the lower part of the rear end of the third convex wall 173 are integrally formed with the first side plates 31B and 31B, respectively. The third convex wall 173 has recesses recessed downward at its front end and rear end, respectively, and the second portion 171B and the second convex wall 172 of the first convex wall 171 are fitted into these recesses. There is. The partition wall 17 composed of these convex walls 171 to 173 is provided between the first substrate 11 and the second substrate 12 in the arrangement direction (horizontal direction) in which the first substrate 11 and the second substrate 12 are lined up. (See Fig. 4). Further, the partition wall 17 has an insertion port 174 penetrating in the left-right direction. A plurality of lead wires 121 that electrically connect the input end of the first substrate 11 and the DC output end of the second substrate 12 are wired so as to pass through the insertion port 174.

Further, as shown in FIG. 5A, the bottom plate 30B has seven support ribs 375 protruding upward in the region on the left side of the third convex wall 173 on the upper surface thereof. Of the seven support ribs 375, two are the front first side plate 31B, two are the rear first side plate 31B, two are the third convex wall 173, and the last one is the boss 311. Each is integrally formed. None of the seven support ribs 375 extend to the upper end of the first side plate 31B, and are sufficiently shorter than the vertical dimensions of the first side plate 31B (for example, about half the dimensions of the first side plate 31B). have. In other words, the support rib 375 has a size sufficiently shorter than the vertical dimensions of the second regulation rib 372 and the third regulation rib 373 on which the first substrate 11 is placed.

The seven support ribs 375 are configured to sandwich the second substrate 12 placed on the upper end thereof together with the five extending ribs 255 of the second outer cover 2B in the vertical direction. In short, the support rib 375 and the extension rib 255 regulate the displacement of the second substrate 12 in the vertical direction. Further, since the front end and the rear end of the second substrate 12 are in contact with a plurality of small protrusions slightly protruding inward from each of the first side plates 31B, the displacement of the second substrate 12 in the front-rear direction is also large. It is regulated. Further, since the right end of the second substrate 12 is in contact with the third convex wall 173 of the partition wall 17 and the left end thereof is in contact with the boss 311, the displacement of the second substrate 12 in the left-right direction is also restricted.

In short, the body 10 of the present embodiment supports the first substrate 11 and the second substrate 12 in a state of being arranged in the left-right direction, and further, the partition wall 17 accommodates the first substrate 11 and the second substrate 12. It is configured to separate the spaces that are being created. Further, in terms of the height position in the vertical direction, the first substrate 11 is supported in the body 10 at a position higher than that of the second substrate 12. As a result, the two USB connectors 7 mounted on the first board 11 face each other as close as possible to the second insertion port 22. On the other hand, since the second substrate 12 is arranged as close to the bottom plate 30B as possible, a space capable of accommodating a plurality of electronic components 15 mounted on the upper surface of the second substrate 12 is formed in the body 10. Has been done.

(2.3.5) Slit and Guide Groove By the way, as shown in FIG. 1, the outer body 3 has a fitting protrusion 312 slightly protruding upward at the peripheral edge of the open upper surface thereof. The fitting projection 312 is formed over the entire peripheral edge thereof. The fitting projection 312 is provided inside the outer surface of the outer body 3 (for example, the outer surface of the first side plate 31B). The fitting projection 312 is fitted into the outer cover 2 from the open lower surface of the outer cover 2, and the outer surface of the outer body 3 and the outer surface of the outer cover 2 are substantially flush with each other.

Here, as described above, each of the first side plates 21B of the second outer cover 2B has a recess 280 in its second end surface 2003. However, the fitting protrusion 312 is configured to be arranged inside the body 10 with respect to the recess 280 when viewed from one side in the vertical direction. In other words, a part of the fitting protrusion 312 is exposed through the recess 280 (see FIG. 7B). In short, by combining the outer cover 2 and the outer body 3, a guide groove 28 that is elongated in the left-right direction and is recessed inward is formed.

Further, as described above, each of the first side plates 21B of the second outer cover 2B is provided with cutouts 270 and 270 which are recessed one step higher than the upper surface in the recess 280. However, as shown in FIG. 7B, the fitting projection 312 does not extend upward enough to close the notch 270 when viewed from one side in the front-rear direction. Therefore, by combining the outer cover 2 and the outer body 3, a slit 27 that penetrates the side plate of the body 10 in the thickness direction is formed.

(2.3.6) Cover and elastic material The pair of covers 8 are the same molded product, and have the same shape and the same dimensions as each other. Each cover 8 is made of a thermoplastic resin such as ABS resin. Each cover 8 is attached to the body 10 and is located between a first position that covers the second insertion port 22 to be covered and a second position that exposes the second insertion port 22. It is configured to be slidable with respect to the body 10. In the present embodiment, the number of the second outlets 22 is two, and the number of the covers 8 is also two. That is, the number of the second outlets 22 to be covered by each cover 8 is one. Hereinafter, the cover 8 whose cover target is the second insertion port 221 on the left side is referred to as "cover 8A", and the cover 8 whose cover target is the second insertion port 222 on the right side is referred to as "cover 8B".

Each cover 8 is configured to be slidable independently of the other covers 8 with respect to the second insertion port 22 to be covered. That is, the cover 8A and the cover 8B are movable independently of each other. Hereinafter, the direction in which the cover 8 slides may be referred to as a “sliding direction”. The "sliding direction" is a direction along (without intersecting) both the first facing surface 810 (lower surface) of the main body 81 and the second facing surface 820 (inner surface) of each side 82, which will be described later. .. In this embodiment, the "sliding direction" corresponds to the left-right direction. Each cover 8 slides between the first position and the second position so that the first facing surface 810 is along the first end surface 2001 and the second facing surface 820 is along the second end surface 2003. It is configured to do.

As shown in FIGS. 8A, 8B and 9, each cover 8 has a main body portion 81 and a pair of side portions 82 (82A, 82B). Further, each cover 8 includes guide ribs 83, 83, hook claws 84, 84, a first protruding portion 85 (protruding portion), a pair of second protruding portions 86, 86 (protruding portions), and a guide piece 87. , And a pressing piece 88.

As shown in FIG. 8B, the main body 81 is formed in a substantially rectangular plate shape when viewed from one side in the vertical direction. As shown in FIG. 8A, the main body 81 is gently curved so as to be convex in the upward direction. The first facing surface 810 (lower surface) of the main body 81 faces the first end surface 2001 (upper surface) provided with the second insertion port 22 of the body 10. A mark 80 (see FIG. 10) for indicating the sliding direction of the cover is provided on the upper surface of the main body 81. The mark 80 is formed, for example, by making a part of the upper surface of the main body 81 convex upward in a triangular shape.

As shown in FIG. 9, the side portions 82A and 82B project downward from both ends of the main body portion 81 in the front-rear direction. That is, the main body portion 81 and the side portions 82A and 82B have an inverted U shape as a whole when viewed from one side in the left-right direction. The second facing surface 820 (inner surface) of each side portion 82 faces the second end surface 2003 (outer surface) of the first side plate 21B.

As shown in FIG. 9, the guide ribs 83 and 83 project in the lower portion of the second facing surface 820 of the side portions 82 and 82 in a direction approaching each other along the front-rear direction. Each guide rib 83 is formed elongated along the left-right direction when viewed from one of the front-rear directions, and its dimension in the left-right direction is substantially equal to the dimension of the side portion 82 in the left-right direction.

The guide ribs 83, 83 are fitted into the guide grooves 28, 28 of the body 10 extending along the sliding direction. The guide groove 28 restricts the cover 8 from moving in a direction (for example, in the vertical direction) intersecting the slide direction along the second end surface 2003 of the first side plate 21B.

As shown in FIG. 9, the hook claws 84, 84 are provided near the upper center of the guide ribs 83 in the left-right direction on the second facing surfaces 820 of the side portions 82, 82. The hooking claws 84, 84 project from the second facing surface 820 in a direction approaching each other in the front-rear direction. Each hook claw 84 has a protruding piece 840 that projects downward from its tip. The protruding pieces 840, 840 of the hook claws 84, 84 are hooked on the edges of the slits 27, 27 of the body 10, respectively. Therefore, the cover 8 is further restricted from moving in a direction (for example, in the vertical direction) intersecting the slide direction along the second end surface 2003 of the first side plate 21B.

The cover 8A is slit so that the hook 8A is in the first position when the hook claw 84 contacts the right end surface in the slit 27, and is in the second position when the hook claw 84 contacts the left end surface in the slit 27. The left-right dimensions of 27 are specified. Further, the cover 8B is in the first position when the hook claw 84 is in contact with the left end surface in the slit 27, and is in the second position when the hook claw 84 is in contact with the right end surface in the slit 27. , The dimensions of the slit 27 in the left-right direction are specified. In short, the movable range of each cover 8 in the left-right direction is limited by the hook claw 84 and the slit 27.

As shown in FIG. 9, the first protruding portion 85 is provided on one end of both ends in the sliding direction on the first facing surface 810 of the main body portion 81. On the other hand, the second protruding portions 86, 86 are provided on the first facing surface 810 of the main body portion 81 at the other end of the both ends. Both the first protruding portion 85 and the second protruding portions 86, 86 project in a direction approaching the first end surface 2001 of the top plate 20B. These protrusions are slidably in contact with the first end face 2001 or close to the first end face 2001 to the extent that they are not slightly in contact with each other.

The first protruding portion 85 of the cover 8A is provided at the left end of the first facing surface 810, and the second protruding portions 86, 86 are provided at the right end of the first facing surface 810. On the other hand, the first protruding portion 85 of the cover 8B is provided at the right end, and the second protruding portions 86, 86 are provided at the left end of the first facing surface 810. In short, the cover 8A and the cover 8B adopt a configuration in which they are plane-symmetrical in the left-right direction in which they are lined up (see FIG. 10).

The second protruding portions 86, 86 of each cover 8 are provided at predetermined intervals in the front-rear direction. This predetermined interval is slightly larger than the dimension of the weir 23 in the front-rear direction. In short, the second protruding portions 86, 86 are configured so as not to be caught by the weir 23 around the second insertion port 22 to be covered when the cover 8 is slid.

As shown in FIG. 9, the guide piece 87 projects downward on the first facing surface 810 of the main body 81. The guide piece 87 has a substantially rectangular plate shape when viewed from one side in the left-right direction. In the present embodiment, the guide piece 87 is provided at the end of the first facing surface 810, which is closer to the side portion 82B of the side portions 82A and 82B (see FIG. 9). Therefore, the guide piece 87 of the cover 8A is arranged at the front end of the first facing surface 810, and the guide piece 87 of the cover 8B is arranged at the rear end of the first facing surface 810.

As shown in FIG. 7A, the guide pieces 87 and 87 are fitted into the recesses 242 and 242 of the second outer cover 2B extending along the sliding direction, respectively. Therefore, the cover 8 is restricted from moving in the direction intersecting the sliding direction (for example, the front-rear direction) along the first end surface 2001 of the top plate 20B by the recess 242.

As shown in FIG. 9, the pressing piece 88 projects downward on the first facing surface 810 of the main body 81. The pressing piece 88 is provided at the center of the first facing surface 810 of the main body 81 in the left-right direction and the front-rear direction. The pressing piece 88 has a rectangular plate shape when viewed from one side in the left-right direction. The pressing piece 88 is fitted in the accommodating portion 241 so as to receive an elastic force from the elastic material 13 accommodated in the accommodating portion 241 of the second outer cover 2B.

The two elastic members 13 are, for example, spiral coil springs. Each elastic member 13 applies an elastic force to the cover 8 in a direction in which the cover 8 slides from the second position to the first position through the pressing piece 88. Specifically, the cover 8A receives a rightward elastic force from the elastic material 13, and the cover 8B receives a leftward elastic force from the elastic material 13. Therefore, when the USB connector 7 is not in use, the covers 8A and 8B are both maintained in the first position, as shown in FIGS. 7A and 7B.

Here, the cover 8A and the cover 8B have one end portions facing each other in the sliding direction. That is, the cover 8A and the cover 8B are attached side by side in a row with respect to the body 10 in the left-right direction so that the right end portion of the cover 8A and the left end portion of the cover 8B face each other. In the present embodiment, the right end portion of the cover 8A corresponds to the right end portion of the main body portion 81 and the pair of side portions 82, and the left end portion of the cover 8B corresponds to the left end portion of the main body portion 81 and the pair of side portions 82. .. The cover 8A and the cover 8B are separated from the other cover 8 when one cover 8 slides from the first position to the second position, and one cover 8 slides from the second position to the first position. It is configured to approach the other cover 8 when it is used.

When both the cover 8A and the cover 8B are in the first position, the dimensions of the slit 27 in the left-right direction and the elastic force of the elastic material 13 are set so that the right end and the left end facing each other meet each other. Has been done. Further, when both the cover 8A and the cover 8B are in the first position, the right end portion and the left end portion are aligned with each other along the groove 240 of the second outer cover 2B when viewed from one side in the vertical direction. (See FIG. 7A).

(2.4) Procedure for Assembling the Outer Cover, Outer Body, and Cover The procedure for assembling the outer cover 2 and the cover 8 with respect to the outer body 3 will be briefly described below. However, it is assumed that the first substrate 11, the second substrate 12, the middle body 4B, and the terminal block 5 are housed in the outer body 3 in advance. It is assumed that the electric wires 61 to 63 of the power cord 6 are connected to the terminal block 5, and the tip portion of the sheath 60 is fitted into the second semicircular groove 320 (see FIG. 4) of the outer body 3. Further, it is assumed that the three suction portions 9 are also fitted into the three storage recesses on the lower surface of the outer body 3, respectively. The assembly procedures (A) to (F) described below are merely examples, and may be assembled by a procedure different from the procedure below.

(A) The assembly worker first fits the elastic materials 13 and 13 into the accommodating portions 241,241 of the outer cover 2, respectively. At this time, the elastic material 13 is fitted so that the compression direction of the coil spring coincides with the slide direction (left-right direction) of the cover 8.

(B) The assembly worker attaches the cover 8A corresponding to the second insertion port 221 of the outer cover 2 to the outer cover 2. Specifically, the cover 8A is gripped so that the tip of the mark 80 of the cover 8A faces to the left. Then, with the right end of the left elastic material 13 bent to the left, the cover 8A is bent outward a little while the side portions 82 and 82 are bent to the first end surface 2001 and the second end surface 2003 of the outer cover 2. It is fitted into the outer cover 2 so as to be wrapped, and the pressing piece 88 of the cover 8A is inserted into the accommodating portion 241. At this time, as shown in FIG. 7B, the hook claw 84 of the cover 8A is inserted into the notch 270, and as shown in FIG. 7A, the guide piece 87 of the cover 8A is also inserted into the recess 242.

Since a through hole is provided on the bottom surface of the accommodating portion 241, the tip of a tool such as a screwdriver is inserted into the insertion hole from the back side of the outer cover 2 and the elastic material 13 is bent to the left. The pressing piece 88 of the cover 8A can be inserted from the front side of the cover 2. When the bending of the elastic material 13 is released, the elastic material 13 elastically returns, and its right end pushes the pressing piece 88 to the right, so that the cover 8A is temporarily held by the outer cover 2.

(C) Subsequently, the assembly worker attaches the cover 8B corresponding to the second insertion port 222 of the outer cover 2 to the outer cover 2. Specifically, the cover 8B is gripped so that the tip of the mark 80 of the cover 8B faces to the right. Then, with the left end of the right elastic material 13 bent to the right, the cover 8B is bent outward slightly while the side portions 82 and 82 are bent to the first end surface 2001 and the second end surface 2003 of the outer cover 2. It is fitted into the outer cover 2 so as to be wrapped, and the pressing piece 88 of the cover 8B is inserted into the accommodating portion 241. Similar to the cover 8A, the hook claw 84 of the cover 8B is inserted into the notch 270, and the guide piece 87 of the cover 8B is also inserted into the recess 242. When the bending of the elastic material 13 is released, the elastic material 13 elastically returns, and the left end thereof pushes the pressing piece 88 to the left, so that the cover 8B is temporarily held by the outer cover 2.

(D) The assembly worker fits the four inner covers 4A into the four through holes 201 of the outer cover 2, respectively. That is, the hooks 204 and 204 on the front and rear edges of the through holes 201 are inserted into the recesses 42 and 42 of the inner cover 4A, and the claws 204A of the hook 204 are hooked on the inner cover 4A. As a result, the inner cover 4A is attached to the outer cover 2.

(E) The assembling worker grips the outer cover 2 with the four inner covers 4A and the covers 8A and 8B attached to the outer cover 2, and the open lower surface of the outer cover 2 is opened to the outer body 3. Turn to the top surface. Then, the outer cover 2 is fitted into the outer body 3 so that the fitting projection 312 protruding over the entire peripheral edge of the upper surface of the outer body 3 enters the outer cover 2.

(F) Finally, the assembly worker inserts the five screws 103 from the back side of the outer body 3 into the insertion holes 304 of the bosses 302, 303, 303, 310, and 311 and screws them. As a result, the tips of the five screws 103 enter the screw holes of the bosses 203, 202, 202, 207, and 208 on the outer cover 2 side. As a result, the assembly of the outer body 3 and the outer cover 2 is completed.

(2.5) Attachment / Removal of USB Plug Hereinafter, attachment / detachment of the USB plug 102 to the table tap 1 will be described mainly with reference to FIGS. 10 to 14. Here, for example, it is assumed that a user of a mobile terminal device such as a smartphone uses the table tap 1 to charge a battery built in the mobile terminal device.

The user can selectively connect the USB plug 102 at the tip of the USB cable connected to the mobile terminal device side to any of the USB connectors 7A and 7B of the table tap 1. For example, when connecting the USB plug 102 to the USB connector 7B on the right side, as shown in FIG. 10, the user covers the cover 8B with a fingertip along the direction (rightward) pointed by the tip of the triangular mark 80. Move 8B. Then, the pressing piece 88 of the cover 8B slides to the right while bending the elastic material 13 against the elastic force of the elastic material 13 in the accommodating portion 241. At this time, the guide ribs 83, 83 of the cover 8B move to the right in the guide grooves 28, 28, and the hook claws 84, 84 also move to the right in the slits 27, 27. Similarly, the guide piece 87 of the cover 8B also moves to the right in the recess 242. When the cover 8B slides to the right to some extent, each hooking claw 84 hits the right end surface in the slit 27, so that the cover 8B is further restricted from moving to the right.

In this state, the second insertion port 222 on the right side is exposed to the outside together with the weir 23. That is, the movement of the cover 8B from the first position (covering the second insertion port 222) to the second position (exposing the second insertion port 222) is achieved (see FIG. 10).

While maintaining this state with a fingertip, the user inserts the conductor 1020 (see FIG. 13) of the USB plug 102 into the second insertion port 222 as shown in FIG. 12, so that the USB plug 102 and the USB connector 7B can be connected. Is electrically connected. After that, when the user releases the fingertip from the cover 8B, the pressing piece 88 of the cover 8B is pushed to the left by the elastic return of the elastic material 13, and the cover 8B moves to the left. However, since the left end of the main body 81 of the cover 8B hits the metal portion 1030 (see FIG. 13) of the USB plug 102, the slide movement of the cover 8B stops there. This completes the installation of the USB plug 102. At this time, it is desirable that the elastic force of the elastic material 13 is set so that the cover 8B does not push the USB plug 102 too strongly.

Then, when the charging of the battery of the mobile terminal device is completed, the user may slide the cover 8B slightly to the right with his / her fingertip, then pull out the USB plug 102 from the second insertion port 222 and release the cover 8B. .. The cover 8B automatically returns to the original first position (covering the second insertion port 222) due to the elastic return of the elastic material 13.

Although detailed description is omitted, when the USB plug 102 is connected to the USB connector 7A on the left side, the tip of the triangular mark 80 on the cover 8A points as shown in FIGS. 11 and 13. The cover 8A may be moved with the fingertip along the direction (leftward). After that, the second insertion port 222 on the left side is exposed to the outside together with the weir 23. Therefore, by inserting the conductor 1020 of the USB plug 102 into the second insertion port 221, the USB plug 102 and the USB connector 7A are electrically connected. Connected to.

Needless to say, the user can use the USB connectors 7A and 7B at the same time as shown in FIG. For example, with the USB plug 102 on the mobile terminal device side connected to the USB connector 7A, the USB plug 102 on the other mobile terminal device side can be connected to the USB connector 7B.

(2.6) Structure against foreign matter 1
Hereinafter, the structure of the cover 8 and the body 10 for suppressing the invasion of foreign matter (liquid such as dust, drink, and debris such as food) in the table tap 1 from the second insertion port 22 will be described. ..

First, the table tap 1 can prevent a foreign object from directly falling onto the second insertion port 22 when the cover 8 is in the first position, that is, in a state of covering the second insertion port 22. Further, the cover 8 does not simply cover only the second insertion port 22 and its peripheral edge. That is, the cover 8 is configured to cover both the first end surface 2001 of the top plate 20B provided with the second insertion port 22 and the second end surface 2003 of the first side plates 21B and 21B. Therefore, it is also possible to prevent foreign matter from entering the second insertion port 22 from the side (front-back direction) of the body 10.

Further, the cover 8 has a first protruding portion 85 (projecting portion) at one end in the left-right direction, and a pair of second protruding portions 86, 86 (projecting portions) at the other end. Therefore, it is also possible to prevent foreign matter from entering the second insertion port 22 from the sliding direction (left-right direction) of the body 10. In particular, when the foreign matter is a liquid such as a drink, when the liquid hits the body 10, it easily travels on the first end surface 2001 of the top plate 20B and tends toward the second insertion port 22, but the above-mentioned protrusions 85 and 86 , 86 more effectively suppress the ingress of liquid.

On the other hand, the body 10 has a weir portion 23 protruding upward from the region surrounding each of the second insertion ports 22 on the first end surface 2001. Therefore, even if the liquid is applied to the body 10 and travels on the first end surface 2001 of the top plate 20B toward the second insertion port 22, it can be dammed by the weir 23. Further, since the groove 240 extending in the front-rear direction is provided between the second insertion ports 22 and 22, the liquid easily enters the groove 240 and travels through the groove 240 in the front-rear direction. In particular, the groove 240 is arranged directly below the boundary where both the right end portion and the left end portion meet when both the cover 8A and the cover 8B are in the first position. Therefore, even if the liquid flows down from the slight gap between the right end of the cover 8A and the left end of the cover 8B, the liquid is received by the groove 240 directly below the gap and reaches the second insertion port 22. Infiltration can be suppressed.

(2.7) Structure against foreign matter 2
Hereinafter, in the table tap 1, the internal structure of the body 10 with respect to a liquid (foreign substance) such as a drink that has penetrated into the body 10 will be described with reference to FIGS. 15A and 15B. Dotted line arrows B1 to B4 in FIG. 15B simply show the flow of the liquid.

First, regarding the first substrate 11, only the USB connector 7 and the display element 14 and the like are mounted on the upper surface thereof, and a relatively low DC voltage such as about 5 V is supplied (light electric side substrate). Therefore, even if the liquid is applied to the first substrate 11, the USB connector 7 causes poor contact, and for example, various electronic components may be damaged or insulation may be deteriorated to reduce reliability. It's hard to happen.

On the other hand, with respect to the second substrate 12, AC power (for example, 100V) for converting to DC power is supplied from the terminal block 5 (high power side substrate). Then, various electronic components 15 constituting the conversion circuit are mounted on the second substrate 12 (see FIG. 15A). Therefore, if the liquid is applied to the second substrate 12, various electronic components 15 are likely to be damaged, or insulation is deteriorated, resulting in a decrease in reliability.

On the other hand, in the present embodiment, first, the first substrate 11 and the second substrate 12 are not housed side by side in the vertical direction in the body 10, but are housed in the first insertion port. The 21 and the second insertion port 22 are arranged side by side, that is, along the left-right direction. Specifically, when the first substrate 11, the second substrate 12, and the terminal block 5 (connection portions 521,522,532) are viewed from one side in the vertical direction, the first substrate 11, the second substrate 12, The terminal blocks 5 are arranged in a row along the left-right direction and housed in the body 10. That is, the board directly below the second insertion port 22 is only the first board 11 on which the USB connector 7 is mounted. Therefore, even if a liquid such as a drink enters the body 10 through the second insertion port 22 (dotted line arrow B1), it is possible to avoid a situation in which the liquid directly hits the second substrate 12.

Further, in the present embodiment, not only the first substrate 11 and the second substrate 12 are housed side by side in the left-right direction, but also the first board 11 is housed in the second board 12 by the partition wall 17. It is isolated from the space where it is. Therefore, unless a large amount of liquid infiltrates so that the water level exceeds the insertion port 174 (through which the lead wire 121 passes) of the partition wall 17, the liquid is prevented from flowing into the space side in which the second substrate 12 is housed. Can be done.

Further, the body 10 of the present embodiment has three pairs of drain ports 18 (six drain ports in total) connected to the external space of the body 10. Therefore, the liquid that has entered the body 10 can be discharged from the body 10.

In particular, the drainage ports (drainage holes) 18C and 18C are arranged in the arrangement direction in which the first substrate 11 and the second substrate 12 are aligned on the bottom plate (second wall portion) of the body 10 when viewed from one of the vertical directions. The first substrate 11 is arranged in the region on the end side (right end portion) opposite to the second substrate 12 in the above. The liquid that has entered the body 10 through the second insertion port 22 flows down from the peripheral edge portion along the top of the first substrate 11 (dotted line arrow B2) and collects at the bottom of the body 10. Then, when the liquid collects to some extent on the bottom of the body 10 and the water level exceeds the upper end surface of the protrusion 37C at the right end of the bottom of the body 10 (dotted line arrow B3), the liquid is discharged from the drain ports 18C and 18C. (Dotted line arrow B4). Therefore, it is possible to further prevent the liquid from flowing into the space side in which the second substrate 12 is housed.

Further, the drainage ports 18B and 18B are arranged in a region between the second substrate 12 and the terminal block 5 on the bottom plate (second wall portion) of the body 10 when viewed from one of the vertical directions. .. Therefore, even if the liquid flows into the space side where the second substrate 12 is housed, the liquid can be discharged from the drain ports 18B and 18B.

By the way, in the present embodiment, as shown in FIGS. 15A and 15B, each drainage port 18 is not directly provided on the lower surface of the bottom plate 30B of the body 10, but is accommodated in the suction portion 9. It is provided in the recess 36. That is, the suction portion 9 is arranged below each drain port 18. Therefore, for example, the suction unit 9 can prevent foreign matter such as a pin from accidentally entering from the drain port 18 and damaging the electronic component 15 or the like in the body 10.

(3) Modification examples Below, some modification examples are listed. Hereinafter, the above-described embodiment will be referred to as a “basic example”. The modified examples described below can also be applied in combination with the above-mentioned basic examples as appropriate.

In the basic example, the number of outlets to which the plug 101 of the power cord of an electric appliance or the like can be connected is four as an example. However, the number of outlets is not particularly limited. Further, in the basic example, the number of the USB connector 7 and the second insertion port 22 to which the USB plug 102 can be connected is two as an example. However, these numbers are not particularly limited.

In the basic example, the cover target of one cover 8 is one second outlet 22. However, the cover target of one cover 8 may be two or more second outlets 22. Further, the number of the second outlets 22 is not particularly limited. That is, when the number of the second outlets 22 is one, the cover 8 may be one.

In the basic example, the groove 240 is formed by the first side walls (opposing walls) 233 and 233 of the two weirs 23 facing each other. However, the groove 240 may be formed by denting a part of the first end surface 2001 of the top plate 20B separately from the weir 23. However, it is easier to manufacture the body 10 when the groove 240 is formed by the weir 23 as in the basic example.

In the basic example, the covers 8A and 8B can slide and move independently of each other. However, the covers 8A and 8B may be slidable in conjunction with each other. However, if the covers 8A and 8B can slide and move independently of each other as in the basic example, the possibility of foreign matter invading can be further reduced.

In the basic example, the first substrate 11 is in contact with the second regulation rib 252, the third regulation rib 253, and the fourth regulation rib 254 of the second outer cover 2B in the vertical direction. However, the first substrate 11 may be housed in the body 10 in a state slightly separated from these regulation ribs.

In the basic example, the first substrate 11 is not in contact with the first reinforcing rib 261 and the second reinforcing rib 262 of the second outer cover 2B in the vertical direction. However, the first substrate 11 may be housed in the body 10 in contact with these reinforcing ribs.

In the basic example, the second substrate 12 is in contact with the extending rib 255 of the second outer cover 2B in the vertical direction. However, the second substrate 12 may be housed in the body 10 in a state slightly separated from these extending ribs.

In the basic example, the protruding piece 840 of each hooking claw 84 of the cover 8 projects downward. However, the protruding piece 840 may protrude upward.

(4) Advantages As described above, the table tap 1 according to the first aspect has a connection portion (512,522,532) with the body 10 having the first insertion port 21 and the second insertion port 22. , A conductive portion, and a connector (USB connector 7). Further, the table tap 1 includes a conversion circuit, a first substrate 11, and a second substrate 12. A conductor (a pair of plug blades 101A and a ground terminal 101B) of a first plug (insertion plug 101) inserted into the first insertion port 21 is electrically connected to the connection portion. The conductive portion electrically connects the external power supply and the connection portion, and supplies the AC power received from the external power supply to the conductor of the first plug. The conductor 1020 of the second plug (USB plug 102) inserted into the second insertion port 22 is electrically connected to the connector. The conversion circuit converts AC power into DC power and supplies it to the conductor of the second plug through the connector. A connector is mounted on the first substrate 11. The electronic component 15 constituting the conversion circuit is mounted on the second substrate 12. The first substrate 11 and the second substrate 12 do not overlap each other when viewed from one of the insertion directions in which the conductor of the second plug is inserted, and the first insertion port 21 and the second insertion port 22 Are housed in the body 10 side by side along the line-up direction. According to the first aspect, it is possible to prevent the reliability from being lowered by the foreign matter that has entered the body 10.

Regarding the table tap 1 according to the second aspect, in the first aspect, it is preferable that the AC input end of the conversion circuit is electrically connected to the connection portion. According to the second aspect, the conversion circuit can generate DC power by using AC power supplied from the connection portion.

Regarding the table tap 1 according to the third aspect, in the first or second aspect, the first substrate 11, the second substrate 12, and the connecting portion are arranged in a row along the arrangement direction in the following order. It is preferably housed inside. The order is the order of the first substrate 11, the second substrate 12, and the connecting portion when viewed from one of the insertion directions. According to the third aspect, it is possible to more effectively prevent the reliability from being lowered.

Regarding the table tap 1 according to the fourth aspect, in any one of the first to third aspects, display light is emitted according to the supply state of DC power to the conductor 1020 of the second plug (USB plug 102). It is preferable to further include a display element 14 that emits light. The display element 14 is mounted on the first substrate 11 at an end portion of the first substrate 11 opposite to the second substrate 12 in the arrangement direction in which the first substrate 11 and the second substrate 12 are arranged side by side. According to the fourth aspect, it is possible to confirm the energization and determine the presence or absence of a circuit abnormality on the substrate through the display element 14. Further, since the display element 14 is mounted on the end portion, it is possible to suppress damage to the display element 14 due to foreign matter invading the body 10.

Regarding the table tap 1 according to the fifth aspect, in any one of the first to fourth aspects, the body 10 is the first substrate 11 in the arrangement direction in which the first substrate 11 and the second substrate 12 are arranged side by side. It is preferable to have a partition wall 17 between the substrate 12 and the second substrate 12. According to the fifth aspect, the second substrate 12 is isolated from the space in which the first substrate 11 is housed by the partition wall 17. Therefore, it is possible to prevent foreign matter from entering the space side in which the second substrate 12 is housed.

In the table tap 1 according to the sixth aspect, in any one of the first to fifth aspects, the body 10 has a regulation rib (251,252,253,254,371,372,373,374). It is preferable to have it. The regulating rib contacts the first substrate 11 from at least one of the insertion directions so as to regulate the displacement of the first substrate 11 with respect to the insertion direction (vertical direction). According to the sixth aspect, the displacement (rattling) of the first substrate 11 along the insertion direction can be suppressed in the body 10.

Regarding the table tap 1 according to the seventh aspect, in any one of the first to sixth aspects, it is preferable that the body 10 has a wall portion (top plate 20B) facing the first substrate 11. The body 10 has at least two second outlets on the wall. The wall portion has a reinforcing rib (first reinforcing rib 261) projecting toward the first substrate 11. The reinforcing rib is provided between the two second insertion ports on the wall portion when viewed from one of the insertion directions. According to the seventh aspect, deformation of the wall portion of the body 10 due to insertion / removal of the second plug (USB plug 102) can be suppressed.

Regarding the table tap 1 according to the eighth aspect, in any one of the first to seventh aspects, the body 10 has a first wall portion (top plate 20A and top plate 20B) and a second wall portion (top plate 20A and top plate 20B). It is preferable to have bottom plates 30A and 30B). A first insertion port 21 and a second insertion port 22 are formed on the first wall portion. The second wall portion faces the first wall portion via the first substrate 11 and the second substrate 12. The second wall portion has a drainage port 18B that connects the external space of the body 10 and the internal space of the body 10. The drainage port 18B is arranged in a region between the second substrate 12 and the connection portion in the second wall portion when viewed from one of the insertion directions. According to the eighth aspect, even if the liquid (foreign matter) invades the space side in which the second substrate 12 is housed, the liquid can be discharged from the drain port 18B.

Regarding the table tap 1 according to the ninth aspect, in any one of the first to eighth aspects, the body 10 has a first wall portion (top plate 20A and top plate 20B) and a second wall portion (top plate 20A and top plate 20B). It is preferable to have bottom plates 30A and 30B). A first insertion port 21 and a second insertion port 22 are formed on the first wall portion. The second wall portion faces the first wall portion via the first substrate 11 and the second substrate 12. The second wall portion has a drain hole (drain port 18C) that connects the external space of the body 10 and the internal space of the body 10. The drain hole is located on the second wall portion of the second wall portion on the side opposite to the second substrate 12 of the first substrate 11 in the arrangement direction in which the first substrate 11 and the second substrate 12 are arranged side by side when viewed from one of the insertion directions. It is located in the area on the edge side. According to the ninth aspect, even if the liquid (foreign matter) enters from the second insertion port 22, the liquid can be discharged from the drain hole (drain port 18C), and the second substrate 12 is accommodated. It is possible to prevent the liquid from flowing into the existing space.

1 Table tap 7 USB connector (connector)
10 Instrument 11 1st board 12 2nd board 21 1st insertion port 22 2nd insertion port 511, 521, 531 Conductive part (conductive part)
513,523,533 Fixed piece (conductive part)
512 Connection part 522 Connection part 532 Grounding connection part 6 Power cord (conductive part)
101 Plug-in plug (1st plug)
101A plug blade (conductor)
101B Ground terminal (conductor)
102 USB plug (second plug)
1020 Conductor 14 Display element 15 Electronic components 17 Partition wall 251,371 1st regulation rib (regulation rib)
252,372 2nd regulation rib (regulation rib)
253,373 Third regulation rib (regulation rib)
254,374 4th regulation rib (regulation rib)
261 1st reinforcing rib (reinforcing rib)
20B top plate (wall)
20A, 20B top plate (first wall)
30A, 30B bottom plate (second wall)
18B drainage port 18C drainage port (drainage hole)

Claims (9)

An instrument having a first outlet and a second outlet,
A connection portion to which the conductor of the first plug inserted into the first insertion port is electrically connected, and
A conductive portion that electrically connects the external power supply and the connection portion and supplies AC power received from the external power supply to the conductor of the first plug.
A connector to which the conductor of the second plug inserted into the second insertion port is electrically connected, and
A conversion circuit that converts the AC power into DC power and supplies it to the conductor of the second plug through the connector.
The first board on which the connector is mounted and
A second substrate on which electronic components constituting the conversion circuit are mounted is provided.
The first substrate and the second substrate do not overlap each other when viewed from one of the insertion directions in which the conductor of the second plug is inserted, and the first insertion port and the second insertion port do not overlap with each other. Table taps that are housed in the vessel side by side along the line-up direction. The table tap according to claim 1, wherein the AC input end of the conversion circuit is electrically connected to the connection portion. The first substrate, the second substrate, and the connection portion are arranged in the order of the first substrate, the second substrate, and the connection portion when viewed from one of the insertion directions. The table tap according to claim 1 or 2, which is arranged in a row and housed in the vessel. A display element that emits light for display according to the supply state of the DC power to the conductor of the second plug is further provided.
The display element is any one of claims 1 to 3 mounted on the first substrate at an end opposite to the second substrate in the arrangement direction in which the first substrate and the second substrate are arranged side by side. The table tap described in item 1. Any one of claims 1 to 4, wherein the body has a partition wall between the first substrate and the second substrate in the arrangement direction in which the first substrate and the second substrate are arranged side by side. Table tap described in. The body has regulation ribs that come into contact with the first substrate from at least one of the insertion directions so as to regulate the displacement of the first substrate with respect to the insertion direction. The table tap described in any one item. The body has a wall portion facing the first substrate and has a wall portion.
The body has at least two of the second outlets on the wall.
The wall portion has a reinforcing rib protruding toward the first substrate.
The table according to any one of claims 1 to 6, wherein the reinforcing rib is provided between two second insertion ports on the wall portion when viewed from one of the insertion directions. Tap. The body is
The first wall portion in which the first insertion port and the second insertion port are formed, and
It has a second wall portion facing the first wall portion via the first substrate and the second substrate.
The second wall portion has a drainage port that connects the external space of the body and the internal space of the body.
Any of claims 1 to 7, wherein the drainage port is arranged in a region between the second substrate and the connection portion in the second wall portion when viewed from one of the insertion directions. The table tap described in item 1. The body is
The first wall portion in which the first insertion port and the second insertion port are formed, and
It has a second wall portion facing the first wall portion via the first substrate and the second substrate.
The second wall portion has a drainage hole that connects the outer space of the body and the inner space of the body.
When viewed from one of the insertion directions, the drain hole is the second substrate of the first substrate in the arrangement direction in which the first substrate and the second substrate are lined up in the second wall portion. The table tap according to any one of claims 1 to 8, which is arranged in the area on the opposite end side.

Images