JP5746925B2 - Connection mechanism for electricity supply - Google Patents

Description

  According to the present invention, a receptacle (power feeding device) that receives supply of electricity from a power source and a plug (power receiving device) that supplies electricity to the electric device are electrically connected to each other. The present invention relates to a connection mechanism that realizes supply.

  The meaning or interpretation of the following terms is as follows.

  The “plug” may be a device that is detachably attached to an article including an electric device, or may be a device that is fixed to an article including an electric device.

  “Electric device” means a device that operates on electricity widely, and as long as it operates on electricity, for example, a cooling device, a refrigeration device, a heating device, other temperature control devices, a humidity control device, a rotation device, etc. .

  Typical examples of the “article having an electric device” are a vehicle having a storage battery, a house having an air conditioner, and a container (cooling container) having a refrigeration device and a cooling device.

  An electric device is provided as a connection mechanism that electrically connects a receptacle that receives supply of electricity from a power source and a plug that supplies electricity to the electric device, thereby realizing supply of electricity from the power source to the electric device. A mechanism for electrically connecting a receptacle to a plug that is detachably attached to an article is known. That is, a receptacle that can be electrically connected to a plug that is detachably installed in a cooling container is provided in a container storage shelf in which the cooling container is arranged, and the electrical connection makes the cooling container There is known an electricity supply mechanism that supplies electricity necessary for the operation of the electric device provided (see Patent Documents 1 to 3).

  In addition, for example, a plurality of container storage shelves are constructed three-dimensionally in a container warehouse, and the cooling container is accommodated in a container storage shelf in an arbitrary or at least part of the area by the container transport device, And it can be taken out.

  In the above electricity supply mechanism, a plug is attached to the cooling container before the cooling container is placed on the predetermined container storage shelf, and then the cooling container to which the plug is attached is connected to the container storage shelf. When transported to a certain place and accommodated in the container storage shelf, the plug and the receptacle are electrically connected to supply electricity necessary for the operation of the electric device (paragraph 0048 of FIG. 1, FIG. 1). reference).

  In addition, the above-described electric supply mechanism includes a connection mechanism that electrically connects both devices by fitting a power receiving terminal included in the plug and a power supply terminal included in the receptacle. In this connection mechanism, the power receiving terminal has a concave shape opened downward in the vertical direction, the power feeding terminal has a convex shape upward, and the concave power receiving terminal and the concave power feeding terminal are fitted to each other. Thus, the plug is connected to the receptacle from above. And since the receptacle is provided with an alignment mechanism that supports the power supply terminal so as to be movable in three directions of X, Y, and Z, the concave power receiving terminal and the convex power supply terminal are aligned and fitted based on the alignment. Is appropriately performed (see FIGS. 10 and 14 of Patent Document 2).

JP 2010-108712 A JP 2010-108713 A JP 2010-108714 A

  However, in the above connection mechanism, the plug and the receptacle are electrically connected by the relative movement and fitting of the concave power receiving terminal and the convex power feeding terminal in the vertical direction. For alignment, a centering mechanism that performs a complicated moving operation is required, and since it is provided with the centering mechanism, the structure becomes complicated and the size increases accordingly. Moreover, it becomes difficult to arrange | position a plug on a floor surface etc., and a plug becomes difficult to store, and increases the burden of the operator who handles this. An electric power supply mechanism having such problems is generally troublesome to arrange and install, is difficult to maintain and manage, and has many opportunities for failure.

  The present invention has been made in view of the above problems, and an object thereof is to provide a connection mechanism for supplying electricity that has a relatively simple structure, is easy to arrange and install, and is easy to maintain and manage. To do.

In order to achieve the above object, a connection mechanism for supplying electricity according to the first embodiment of the present invention electrically connects a receptacle that receives supply of electricity from a power source and a plug that supplies electricity to the electric device. Thus, a connection mechanism that realizes the supply of electricity from the power source to the electric device, wherein the plug includes a power receiving terminal, the receptacle includes a power feeding terminal, and the power receiving terminal and the power feeding The terminals can be electrically connected by being in surface contact with each other, and the terminal surface of the power receiving terminal that can be in surface contact with the power feeding terminal is larger in area than the terminal surface of the power feeding terminal that can be in contact with the power receiving terminal. a large flat plate, wherein the plug comprises a power receiving side coupling surface, said receptacle comprising a power supply side connecting plane, the power-receiving-side connecting surface is arranged to surround the power receiving terminals The power supply side connection surface is disposed so as to surround the power supply terminal, the power reception side connection surface and the power supply side connection surface can be in surface contact with each other, and the power reception terminal and the power supply terminal are electrically connected to each other. The power receiving side coupling surface and the power feeding side coupling surface are in surface contact with each other when connected .

A connection mechanism for supplying electricity according to a second aspect of the present invention is the connection mechanism according to the first aspect, wherein the power supply side connection surface includes a sheet member, and the power reception side connection surface and The power supply side connection surface is capable of surface contact via the sheet member, and the power supply terminal protrudes outward from the sheet member in the normal direction of the power supply side connection surface. To do.

A connection mechanism for supplying electricity according to a third aspect of the present invention is the connection mechanism according to the first or second aspect, wherein the power receiving side coupling surface includes a sheet member, and the power receiving side The connection surface and the power supply side connection surface can be brought into surface contact via the sheet member, and the power receiving terminal is configured not to protrude outward from the sheet member in the normal direction of the power reception side connection surface. It is characterized by that.

A connection mechanism for supplying electricity according to a fourth aspect of the present invention is the connection mechanism according to any one of the first to third aspects, wherein the power reception terminal in the normal direction of the power reception side coupling surface Is not movable, and the power supply terminal is elastically movable .

A connection mechanism for supplying electricity according to a fifth aspect of the present invention is the connection mechanism according to any one of the first to fourth aspects, wherein the plug includes a short-circuit member, and the receptacle is The connection detection terminal is provided, and the short-circuit member and the connection detection terminal can be electrically connected to each other, and the short-circuit member is a flat plate .

A connection mechanism for supplying electricity according to a sixth aspect of the present invention is the connection mechanism according to the fifth aspect, wherein the plug includes a power reception side connection surface, and the receptacle includes a power supply side connection surface. The power receiving side connecting surface is disposed so as to surround the short-circuit member, and the power feeding side connecting surface is disposed so as to surround the connection detecting terminal, and the power receiving side connecting surface and The power supply side connection surface can be in surface contact with each other, and when the power receiving terminal and the power supply terminal are electrically connected to each other, or the short-circuit member and the connection detection member are electrically connected to each other. In this case, the power receiving side connecting surface and the power feeding side connecting surface are configured to be in surface contact with each other .

A connection mechanism for supplying electricity according to a seventh aspect of the present invention is the connection mechanism according to any one of the first to sixth aspects , wherein the receptacle is in a normal direction of the power supply side coupling surface. A lid that can be opened and closed in accordance with the approach and separation of the plug is provided .

A connection mechanism for supplying electricity according to an eighth aspect of the present invention is the connection mechanism according to any one of the first to seventh aspects, wherein the plug is attached to and detached from an article provided with the electric device. An attachment / detachment mechanism is provided for enabling the attachment / detachment mechanism, and the attachment / detachment mechanism is a mechanism operated by a detachable handle member .

A connection mechanism for supplying electricity according to a ninth aspect of the present invention is the connection mechanism according to the eighth aspect, wherein the plug includes a gripping member for a worker to grip by hand. Features.

  According to the first aspect of the present invention, the plug and the receptacle are electrically connected by surface contact between the power receiving terminal and the power receiving terminal. The terminal surface of the power receiving terminal that can be contacted with the power feeding terminal is a flat plate having a larger area than the terminal surface of the power feeding terminal that can be contacted with the power receiving terminal. Even if a deviation occurs, there is no problem, and there is no need to provide an alignment mechanism necessary for accurate alignment. Therefore, both the plug and receptacle are simpler than conventional ones, and in particular the receptacle is smaller, facilitating placement and installation, reducing the chance of failure, and reducing maintenance and management burdens. can do.

According to the first aspect of the present invention, the power receiving side connecting surface is arranged so as to surround the power receiving terminal, and the power feeding side connecting surface is arranged so as to surround the power feeding terminal. When the surfaces come into surface contact, the contact portions of both terminals are shielded from the outside, so that the surface contact between the power receiving terminal and the power receiving terminal can be maintained safely. This shielding can also improve the dustproofness and waterproofness at the contact portions of both terminals.

According to the second aspect of the present invention, the power receiving side connecting surface and the power feeding side connecting surface can be brought into surface contact via the sheet member, so that the contact portion between the power receiving terminal and the power feeding terminal is more reliably cut off from the outside. Thus, the dustproofness and waterproofness can be further improved, and safer contact between both terminals can be maintained. Further, since the power supply terminal protrudes outward from the sheet member attached to the power supply side connection surface, even when the power reception side connection surface and the power supply side connection surface are in surface contact via the sheet member. Surface contact with the power receiving terminal can be ensured.

  In addition, it is preferable that the sheet | seat member is comprised with the raw material which performs the function of a slipperiness, for example, rubber | gum. This is because it helps prevent slipping and dropping when the plug is placed on a shelf or floor.

According to the third aspect of the present invention, the power receiving side connecting surface and the power feeding side connecting surface can be brought into surface contact via the sheet member, so that the contact portion between the power receiving terminal and the power feeding terminal is more reliably cut off from the outside. Therefore, the dust resistance and waterproofness can be further improved, and safer contact between both terminals can be maintained. Further, since the power receiving terminal is configured not to protrude outward from the sheet member attached to the power receiving side coupling surface, the terminal surface hardly collides with an external article and can be prevented from being caught. . The terminal surface of the power receiving terminal is a flat plate, so it is difficult to collide with external objects and not easily wrinkle because it is possible to maintain surface contact with the power supply terminal for a long time, and maintenance and management are easy. .

In general, according to the second and third embodiments, it is possible to reduce the load of maintenance and management of the connection mechanism for supplying electricity and extend the life while maintaining the surface contact between the power receiving terminal and the power feeding terminal. it can.

According to the fourth aspect of the present invention, since the power receiving terminal is immovable in the normal direction of the power receiving side connecting surface, the structure of the plug can be simplified. In the normal direction, the power feeding terminal is Since it can move elastically, the contact between both terminals, and hence the electrical connection between the plug and the receptacle, can be ensured, and the electricity required for the operation of the electric device can be supplied safely. In order to make the power supply terminal movable elastically, for example, a spring member may be loaded between the receptacle body and the power supply terminal.

According to the fifth aspect of the present invention, when the short-circuit member provided in the plug and the connection detection terminal provided in the receptacle are brought into contact and conducted, electricity necessary for the operation of the electric device is supplied from the receptacle to the plug. Therefore, the electricity required for the operation of the electric device can be supplied safely.

According to the sixth aspect of the present invention, the power receiving side connecting surface is arranged so as to surround the periphery of the short-circuiting member, and the power feeding side connecting surface is arranged so as to surround the connection detecting terminal. When the connecting surfaces come into surface contact with each other, the contact portion between the short-circuit member and the connection detection terminal is shielded from the outside, and thus the conduction between the short-circuit member and the connection detection terminal can be reliably detected. Moreover, the said contact part can be maintained safely.

According to the seventh aspect of the present invention, in the normal direction of the power receiving side coupling surface, the short-circuiting material is not movable, and therefore no movable part is required. In the normal direction, the connection detection terminal moves elastically. Since it is possible, complicated moving parts are not required. As a result, both the structure of the plug and the receptacle are simplified.

According to the eighth aspect of the present invention, since the receptacle includes the lid that opens and closes in response to the approach and separation of the plug, exposure to the outside of the power feeding terminal can be avoided as much as possible.

In the case where the power supply terminal is configured to protrude outside the sheet member attached to the power supply side connection surface (see the second embodiment), it is particularly important to avoid exposure of the power supply terminal to the outside. . Therefore, the ninth embodiment is particularly effective in the case where the power supply terminal is configured to protrude outside the sheet member attached to the power supply side coupling surface (see the second embodiment).

According to the ninth aspect of the present invention, since the handle member necessary for attaching or removing the plug to or from the container is detachable, the presence of the handle is an obstacle when the container is transported after the plug is installed in the container. do not become. Moreover, it can be stored in a place different from the plug. Therefore, according to the tenth embodiment, even if the plug is installed in the container, it is not necessary to greatly disturb the transportation of the container. By managing the handle, it is possible to manage the attachment / detachment of the plug in the container. . Using a handle instead of a key can increase security.

According to the tenth aspect of the present invention, when the plug is attached / detached to / from the container by the operator's human power, the operator can hold the holding member by hand, so that the attachment / detachment work is facilitated. This configuration is particularly effective when the plug is light enough to be transported by the operator's human power.

(A) is a front view which shows the container storage shelf in which the container was accommodated, (b) is an external appearance perspective view which shows the container provided with a cooling device, (c) is the front which shows the opening part of a corner metal fitting FIG. It is a perspective view which shows a plug. It is a bottom view which shows a plug. It is a bottom view which shows the attachment structure of a locking member and a plug main body. It is a perspective view which shows the plug which rotated the locking member to the fixed position. It is a perspective view which shows the plug arrange | positioned facing a corner metal fitting. It is a partial notch perspective view which shows the plug which inserted the locking member in the opening part of the corner metal fitting. It is a perspective view which shows the fixing method of the plug to the metal fitting with a handle | steering-wheel. It is a partial notch perspective view which shows the plug fixed to the corner metal fitting by the locking member. FIG. 10 is a sectional view taken along line AA in FIG. 9. It is a perspective view which shows the receptacle after closing. It is a front view which shows the receptacle in the middle of lid opening. It is a perspective view which shows the receptacle after opening a lid | cover. It is a top view which shows the receptacle after opening a lid | cover. It is a perspective view which shows the state which conveyed the container which attached the plug just above the receptacle. It is A arrow line view of FIG. It is a perspective view which shows the cover open state of the receptacle accompanying the descent | fall of a container. It is a perspective view which shows the state which the lid opening of the receptacle was completed. It is a B arrow line view of FIG.

  Hereinafter, the case where the connection mechanism for supplying electricity according to the present invention is applied to the above-described electricity supply mechanism of a container warehouse will be described with reference to the drawings. Needless to say, the present invention is not limited to a connection mechanism including a plug that can be attached to and detached from a container as described below, and is not limited to a connection mechanism that is applied to an electric supply mechanism of a container warehouse. .

  1A is a front view showing a container storage shelf in which containers are accommodated, FIG. 1B is an external perspective view showing a container having a cooling device, and FIG. 1C is an opening of a corner metal fitting. It is a front view which shows a part.

  In FIGS. 1A and 1B, reference numeral 200 denotes a container including an electric device 202. At the four corners of each surface of the container 200, corner fittings 203 each having a vertically long opening 204 are attached. Reference numeral 205 denotes a pedestal fixed on the floor surface 206 of the container storage shelf 103 a corresponding to the corner fitting 203, and the container 200 is placed on the pedestal 205. A positioning projection 207 (see FIG. 16) is projected on the upper surface of the pedestal 205, and the projection 207 is inserted into the opening 204 of the corner fitting 203 attached to the lower surface of the container 200 when the container is placed. The

  Reference numeral 1 denotes an electricity supply mechanism. When the corner metal fitting 203 is arranged on the pedestal 205, that is, when the container 200 is placed on the pedestal 205, the electricity supply mechanism 1 supplies electricity from the power source 2 to the electric device 202 (FIG. 1 ( a), indicated by a one-dot chain line). The electricity supply mechanism 1 includes a plug (power receiving device) 3 that can be attached to and detached from the corner metal fitting 203, and a receptacle (power feeding device) 4 that is electrically connected to the plug 3 and supplies electricity from the power source 2 to the electric device 202. It has become.

(plug)
The plug 3 will be described with reference to the drawings.

  2 is a perspective view showing the plug, FIG. 3 is a bottom view showing the plug, FIG. 4 is a bottom view showing the mounting structure of the lock member and the plug body, and FIG. 5 is a diagram showing the lock member rotated to a fixed position. FIG. 6 is a perspective view showing a plug disposed opposite to the corner fitting, and FIG. 7 is a partially cutaway perspective view showing the plug in which the locking member is inserted into the opening of the corner fitting. FIG. 8 is a perspective view showing a method of fixing the plug to the corner fitting by the handle, FIG. 9 is a partially cutaway perspective view showing the plug fixed to the corner fitting by the locking member, and FIG. It is A sectional view.

  As shown in FIGS. 2 to 10, the plug 3 has a box-shaped plug body 6 that can be carried by a handle 5 that can be tilted up and down, and is exposed on the lower surface side of the plug body 6 at a lower portion in the plug body 6. The power receiving terminal 7 and the short-circuit member 8 (see FIG. 3), the lock member 9 for fixing the plug main body 6 to the corner metal fitting 203 of the container 200, and both lower side surfaces of the plug main body 6 A pair of the abutting plates 10 which are protruded and fixed, and an outlet 11 of the electric device 202 electrically connected to the power receiving terminal 7 provided on the upper surface of the plug body 6 are provided.

  The plug body 6 has, on its lower surface, a power receiving side connecting surface disposed so as to surround the power receiving terminal 7 and the shorting member 8, and the power receiving side connecting surface has a sheet member made of rubber, for example. 6a is attached (see FIG. 3). The power receiving side connecting surface is not shown because it is covered with the sheet member 6a. The power receiving terminal 7 is configured not to protrude outward from the sheet member 6a.

  When the container 200 is placed on the pedestal 205, the power receiving side connecting surface comes into surface contact with a sheet member of a power feeding side connecting surface of the receptacle 4 described later via the sheet member 6a. As a result, the power receiving terminal 7, the power feeding terminal to be described later, the shorting member 8 and the connection detecting terminal to be described later, the surface contact portion between the power receiving terminal 7 and the power feeding terminal, and the contact portion between the shorting member 8 and the connection detecting terminal are as follows. At the same time, they are confined in a closed space between the receptacle 4 and the plug 3 to be shielded from the outside, thereby realizing dustproofing and waterproofing.

  Further, at this time, since the power receiving side connecting surface is disposed above the power feeding side connecting surface, the power receiving side connecting surface of the power receiving side connecting surface via the sheet member 6a is energized by the weight of the container 200 and the plug 3. It is strongly pressed against the sheet member, and the surface contact between both connecting surfaces and the surface contact between the power receiving terminal 7 and the power feeding terminal are immovable and firmly maintained. Therefore, there is no need to employ a complicated terminal connection structure as in the prior art, that is, a fitting structure of a concave power receiving terminal and a convex power feeding terminal.

  Therefore, a container warehouse equipped with the electric supply mechanism 1 that can electrically connect the receptacle 4 and the plug 3 by a relatively simple method and can maintain the electric connection safely and reliably. Can be realized.

  Since the sheet member 6a is made of rubber or the like as described above, the sheet member 6a also functions to prevent slipping, which is useful for preventing slipping and dropping when the plug 3 is placed on a shelf or floor.

  A contact member 32 is attached to the side surface of the plug body 6 on the side in contact with the corner fitting 203. The abutting member 32 has a function of causing the rotation shaft, which will be described later, to be arranged at a right angle with respect to the corner fitting 203 by closely contacting the corner fitting 203 when the plug body 6 is fixed to the corner fitting 203. ing.

  The power receiving terminal 7 can come into surface contact with the power feeding terminal of the receptacle 4. The power receiving terminal 7 is configured to be immovable while the power feeding terminal is elastically movable as will be described later. The terminal surface of the power receiving terminal 7 is a flat plate having a larger area than the terminal surface of the power feeding terminal. Thereby, when the power receiving terminal 7 moves downward and contacts the power feeding terminal, contact failure is less likely to occur than when the concave power receiving terminal and the convex power feeding terminal are fitted, and the power receiving terminal 7 and the power feeding terminal. Needless to say, a centering mechanism for performing relative alignment with the above is provided. Therefore, the plug 3 and the receptacle 4 are both simpler than the conventional structure, and particularly the receptacle 4 is smaller, so that the burden on the operator who handles the plug 3 can be reduced and the container storage shelf 103a is limited. It is relatively easy to install the receptacle 4 in the open space. And a container warehouse provided with the comparatively small electricity supply mechanism 1 as a whole can be realized.

  The short-circuit member 8 causes the short-circuit member 8 and the connection detection terminal of the receptacle 4 to conduct after the power receiving terminal 7 and the power supply terminal are in contact with each other, thereby establishing electrical connection between the plug 3 and the receptacle 4. Thus, it has a function of supplying electricity from the receptacle 4 to the plug 3. Accordingly, it is possible to realize a container warehouse including the electricity supply mechanism 1 that can safely supply electricity from the receptacle 4 to the plug 3. Since the short-circuit surface of the short-circuit member 8 that can come into contact with the connection detection terminal is made of a metal flat plate having excellent conductivity, such as a copper plate, poor contact is unlikely to occur between the connection detection terminal and the short-circuit member 8. For this reason, the power receiving terminal 7 and the power feeding terminal are in contact with each other, and thus an electrical failure between the plug 3 and the receptacle 4 is established, but no electrical operation is performed such that electricity is not supplied from the receptacle 4 to the plug 3. hard. As a result, a container warehouse including the electricity supply mechanism 1 that can safely supply electricity from the receptacle 4 to the plug 3 can be realized.

  The lock member 9 is composed of a washer 12 and an engagement member 13, and a pushing force toward the washer 12 is urged to the engagement member 13 by a spring 31 (see FIG. 4) disposed on a rotation shaft described later. ing. The washer 12 is provided on the side surface of the plug body 6 on the side in contact with the corner fitting 203 to which the plug 3 is fixed so as to protrude from the side surface. The washer 12 is composed of a vertically long oval shaped hole 204 formed in the corner fitting 203 having a recess 12a formed in a vertically elongated elliptical member that is substantially the same size. When the plug body 6 is fixed to the corner fitting 203, the washer 12 is fixed. It is inserted into the opening 204. The engaging member 13 is formed by forming a tapered surface 13a on the circumferential surface on the major axis side of an elliptical member approximately the same size as the opening 204. The tapered surface 13a is formed so as to reduce in diameter toward the plug body 6 side. By forming the tapered surface 13 a on the engaging member 13 in this manner, the engaging member 13 can rotate in the recess 12 a in a state where a part of the engaging member 13 enters the recess 12 a of the washer 12. A rotating shaft 14 is attached to the engaging member 13, and one end of the rotating shaft 14 protrudes horizontally from the side surface opposite to the side surface to which the engaging member 13 is attached. The rotary shaft 14 is inserted into a sleeve tube 33 attached in the plug main body 6 so as not to interfere with the wiring in the plug main body 6. The handle 15 can be attached to one end of the rotating shaft 14 protruding from the plug body 6 to rotate the engaging member 13 (see FIG. 5). By making the handle 15 detachable, the presence of the handle 15 does not interfere when the container 3 is transported after the plug 3 is installed in the container 200. Further, it can be stored in a place different from the plug 3. Therefore, even if the plug 3 is installed in the container 200, it is not necessary to greatly disturb the conveyance of the container 200, and by managing the handle 15, the attachment / detachment of the plug 3 in the container 200 can be managed. If the handle 15 is used as a key, security can be enhanced.

  A method of fixing the plug 3 to the corner fitting 203 by the lock member 9 will be described.

  With the engaging member 13 rotated in the same direction as the washer 12 (see FIG. 2), the plug 3 is set so that the corner fitting 203 and the lock member 9 face each other (see FIG. 6), and the washer 12 is engaged. The joint member 13 is inserted into the opening 204 of the corner fitting 203 (see FIG. 7). The plug 3 can be easily carried by the handle 5. Thereafter, when the handle 15 is attached to the rotating shaft 14 and the engaging member 13 is rotated (see FIG. 8), the inner edge of the opening 204 and the tapered surface 13a come into contact with each other. When the engagement member 13 is further rotated, the tapered surface 13 a of the engagement member 13 slides along the inner edge of the opening 204, and the engagement member 13 resists the elastic force of the spring 31. Slide in the protruding direction from the recess 12a. Thus, the engaging member 13 is pressed against the inner edge of the opening 204 by the elastic force of the spring 31 (see FIGS. 9 and 10). Thereby, the plug 3 is engaged and securely fixed to the corner fitting 203 by the lock member 9 without loosening. When the plug 3 is removed, the handle 15 may be rotated in the reverse direction. When the plug 3 is removed, the handle 15 is pushed against the elastic force of the spring 31 to release the engagement between the engagement member 13 and the opening 204, so that the handle 15 can be easily rotated in the reverse direction. . The pushing operation of the handle 15 may be performed when the plug 3 is attached.

  The plate 10 rotates a link mechanism (to be described later) of the receptacle 4 to open the lid of the receptacle 4. The relationship between the plate 10 and the link mechanism will be described in the receptacle 4 described later.

(Receptacle)
The receptacle 4 will be described with reference to the drawings.

  11 is a perspective view showing the receptacle after the lid is closed, FIG. 12 is a front view showing the receptacle in the middle of the lid opening, FIG. 13 is a perspective view showing the receptacle after the lid is opened, and FIG. 14 is a diagram after the lid is opened. It is a top view which shows a receptacle.

  As shown in FIGS. 11 to 14, the receptacle 4 includes a box-shaped receptacle body 17 attached to a base 16, a power supply terminal 18 and a connection detection terminal 19 provided upward in the upper portion of the receptacle body 17. (See FIGS. 13 and 14) and a lid 20 that exposes and shields the power supply terminal 18 and the connection detection terminal 19. The receptacle 4 is attached to the base 16 so as to be vertically movable via springs 21 disposed on both sides of the receptacle body 17. The base 16 is fixed to the floor surface 206 of the container storage shelf 103a.

  The reason why the receptacle body 17 is attached to the base 16 via the spring 21 is as follows.

  When the container 200 is lowered and the plug 3 comes into contact with the receptacle 4, the entire receptacle 4 sinks against the elastic force of the spring 21. As a result, the surface contact between the power supply side connection surface (described later) and the power reception side connection surface (described later) of the plug 3 arranged so as to surround the power supply terminal 18 and the connection detection terminal 19 is ensured.

  The receptacle body 17 has, on its upper surface, a power supply side connection surface disposed so as to surround the power supply terminal 18 and the connection detection terminal 19, and a sheet made of rubber, for example, is provided on the power supply side connection surface. A member 17a is attached (see FIGS. 13 and 14). In addition, since the electric power feeding side connection surface is covered with the sheet | seat member 17a, it is not illustrated. The power supply terminal 18 is configured to protrude outward from the sheet member 17a.

  When the container 200 is placed on the pedestal 205, the power supply side connection surface comes into surface contact with the sheet member 6a on the power reception side connection surface of the plug 3 via the sheet member 17a. As a result, the power receiving terminal 7, the power feeding terminal 18, the shorting member 8 and the connection detecting terminal 19, the surface contact portion between the power receiving terminal 7 and the power feeding terminal 18, and the contact portion between the shorting member 8 and the connection detecting terminal 19 are At the same time, they are confined in a closed space between the receptacle 4 and the plug 3 and are shielded from the outside, which also realizes dustproofing and waterproofing.

  The power supply terminal 18 is biased by a force protruding upward by a spring (not shown), and comes into surface contact with the power reception terminal 7 of the plug 3 when the container 200 is placed on the pedestal 205. The contact between the power supply terminal 18 and the power receiving terminal 7 is reliably performed by the elastic force of the spring. The connection detection terminal 19 has a function of supplying electricity from the receptacle 4 to the plug 3 when detecting electrical continuity due to contact of the plug 3 with the short-circuit member 8. That is, the height of the connection detection terminal 19 when not in contact with the power receiving terminal 7 is configured to be lower than the height of the power feeding terminal 18 so that the power feeding terminal 18 and the power receiving terminal 7 are in contact with each other. 3 is established, the connection detection terminal 19 and the short-circuit member 8 are electrically connected, electricity from the power source 2 is supplied from the receptacle 4 to the plug 3, and electric power is supplied from the plug 3. The apparatus 202 is surely supplied.

  The lid 20 is attached to a pair of arms 22 pivotally supported on both sides of the receptacle body 17. The arm 22 is rotated together with the lid 20 by a link mechanism, which will be described later, and thus the power supply terminal 18 and the connection detection terminal 19 are exposed and shielded by the lid 20.

  The link mechanism 23 comprises a slider / crank mechanism. That is, a short lever 25 having a roller 24 attached to the top and a long lever 26 having a guide groove 26a are connected in a letter shape through a connecting shaft 27. The link mechanism 23 configured as described above is rotatably attached to both sides of the receptacle body 17 via a connecting shaft 27. The long levers 26 are connected to each other by a connecting bar 28 and rotate integrally. A spring 29 that constantly biases the force in the closing direction (the direction of arrow A in FIG. 12) is attached to the link mechanism 23 on the connecting shaft 27. Pins 30 are provided on both side surfaces of the lid 20. The pins 30 engage with the guide grooves 26 a of the long lever 26 and slide along the guide grooves 26 a as the link mechanism 23 rotates.

  According to the link mechanism 23, when the plug 3 descending together with the container 200 pushes down the short lever 25, the long lever 26 rotates against the elastic force of the spring 29 in the opening direction (the arrow B direction in FIG. 12). Move. When the long lever 26 rotates, the pin 30 slides from one end (left side in FIG. 12) to the other end (right side in FIG. 12) of the guide groove 26a of the long lever 26. When the plug 3 starts to open (see FIG. 12) and the plug 3 is further lowered, the lid 20 is completely opened, and the power supply terminal 18 and the connection detection terminal 19 are exposed from the receptacle body 17 (see FIGS. 13 and 14).

  On the other hand, when the plug 3 rises together with the container 200, the short lever 25 rotates together with the long lever 26 in the opening direction by the elastic force of the spring 29. When the long lever 26 rotates, the pin 30 slides from the other end of the guide groove 26a of the long lever 26 to one end, so that the lid 20 is completely closed (see FIG. 11).

  According to the link mechanism 23, the opening / closing operation can be performed in a narrow space as compared with the case where the lid 20 of the receptacle 4 slides in the horizontal direction to perform the opening / closing operation. Therefore, the increase in size of the receptacle 4 can be suppressed, and the installation of the receptacle 4 in a limited space such as the container storage shelf 103a is relatively easy. The short lever 25 is rotated smoothly through the roller 24 as the plug 3 is moved in the vertical direction.

  As described above, since the receptacle 4 includes the lid 20 that exposes and shields the power supply terminal in accordance with the opening / closing operation corresponding to the approach and separation of the plug 3 in the vertical direction, the opening / closing operation of the lid included in the receptacle as in the prior art. Therefore, it is not necessary to position the container in the vertical direction, and it is not necessary to move the container in the horizontal direction. Then, by simply moving the container 200 to which the plug 3 is attached up and down, the lid 20 can be opened and closed, and thus the feed terminal can be exposed and shielded, and the feed terminal and the receiving terminal can be contacted and released. . A conventional alignment mechanism is not required for alignment of both terminals. Therefore, it is possible to realize a container warehouse including a power supply mechanism 1 that can safely perform electrical connection between the plug and the receptacle and release of the plug and the receptacle simply by moving the container in the vertical direction. it can.

  Further, since the connection detection terminal 19 is exposed and shielded with the opening / closing operation of the lid 20, the connection detection terminal 19 is short-circuited when it is not necessary to detect the electrical connection state between the plug 3 and the receptacle 4. It is possible to prevent the occurrence of an unforeseen situation (consecutive situation in which an unnecessary voltage is applied between the power receiving terminal 7 and the power feeding terminal 18) that is in contact with and conductive with a member other than the working member 8.

  Next, a method for accommodating a container having an electric device in a container warehouse will be described with reference to the drawings.

  15 is a perspective view showing a state in which a container with a plug attached is conveyed directly above the receptacle, FIG. 16 is a view as seen from the direction of arrow A in FIG. 15, and FIG. 17 is a state in which the receptacle is opened as the container is lowered. FIG. 18 is a perspective view showing a state in which the opening of the receptacle is completed, and FIG. 19 is a view taken in the direction of arrow B in FIG.

  First, the receptacle 4 is fixed to the outside of the pedestal 205 fixed on the floor surface 206 of the predetermined container storage shelf 103a, and the plug 3 is attached to the corner fitting 203 of the container 200 (see FIG. 1). At this time, a power plug (not shown) of the electric device 202 is inserted into the outlet 11 of the plug 3. The power plug may be inserted into the outlet 11 after the container 200 is placed on the pedestal 205.

  Next, the container 200 to which the plug 3 is attached is transported into the container storage shelf 103a by the container transport device described above so that the receptacle 4 is positioned directly below the plug 3 (see FIGS. 15 and 16). Next, the container 200 is lowered. Along with the container 200, the short lever 25 of the receptacle 4 is pushed down by the contact plate 10 of the plug 3, whereby the lid 20 starts to be opened by the link mechanism 23 (see FIG. 17).

  In this way, when the container 200 is completely placed on the pedestal 205, the lid 20 of the receptacle 4 is completely opened, and the power supply terminal 18 of the receptacle 4 and the power receiving terminal 7 of the plug 3 come into contact (FIG. 18). FIG. 19). Therefore, when the electric device 202 is turned on, the electricity from the power source 2 is supplied to the electric device 202 via the receptacle 4 and the plug 3 (see FIG. 1).

  At this time, after the power receiving terminal 7 and the power feeding terminal 18 come into contact with each other and thereby the electrical connection between the plug 3 and the receptacle 4 is established, the short-circuit member 8 and the connection detection terminal 19 are electrically connected to each other from the receptacle 4. Since electricity is supplied to the plug 3, electricity can be safely supplied from the receptacle 4 to the plug 3.

  In this way, accommodation of the container equipped with the electric device in the container warehouse is completed.

1: Electric supply mechanism 2: Power supply 3: Plug 4: Receptacle 5: Handle 6: Plug body 6a: Power receiving side connection surface 7: Power receiving terminal 8: Short circuit member 9: Lock member 10: Contact plate 11: Outlet 12: Washer 12a: recess 13: engagement member 13a: taper surface 14: rotating shaft 15: handle 16: base 17: receptacle body 17a: power supply side connection surface 18: power supply terminal 19: connection detection terminal 20: lid 21: spring 22 : Arm 23: link mechanism 24: roller 25: short lever 26: long lever 26 a: guide groove 27: connecting shaft 28: connecting bar 29: spring 30: pin 31: spring 32: abutting member 33: sleeve tube

Claims (9)

A connection mechanism that electrically connects a receptacle that receives supply of electricity from a power source and a plug that supplies electricity to the electric device, thereby realizing supply of electricity from the power source to the electric device,
The plug includes a power receiving terminal, the receptacle includes a power feeding terminal, and the power receiving terminal and the power feeding terminal can be electrically connected to each other by being in surface contact with each other, and the power feeding terminal is in surface contact with the power feeding terminal. The possible terminal surface of the power receiving terminal is a flat plate having a larger area than the terminal surface of the power feeding terminal that can contact the power receiving terminal, the plug includes a power receiving side connecting surface, and the receptacle is a power feeding side. The power receiving side connecting surface is disposed so as to surround the power receiving terminal, and the power feeding side connecting surface is disposed so as to surround the power feeding terminal, and the power receiving side connecting surface and the power receiving terminal are provided. The power supply side connection surface can be in surface contact with each other, and when the power reception terminal and the power supply terminal are electrically connected to each other, the power reception side connection surface and the power supply side connection surface are in surface contact with each other. Constitution It is characterized in that has a connection mechanism for the electric supply.   The power supply side connection surface includes a sheet member, and the power reception side connection surface and the power supply side connection surface can be brought into surface contact via the sheet member, and in a normal direction of the power supply side connection surface The connection mechanism for supplying electricity according to claim 1, wherein the power feeding terminal protrudes outward from the sheet member.   The power receiving side connecting surface includes a sheet member, and the power receiving side connecting surface and the power feeding side connecting surface can be brought into surface contact via the sheet member, and in a normal direction of the power receiving side connecting surface. The connection mechanism for supplying electricity according to claim 1, wherein the power receiving terminal is configured not to protrude outward from the sheet member.   The electric power according to any one of claims 1 to 3, wherein the power receiving terminal is immovable and the power feeding terminal is elastically movable in a normal direction of the power receiving side connection surface. Connection mechanism for supply.   The plug includes a short-circuit member, the receptacle includes a connection detection terminal, the short-circuit member and the connection detection terminal can be electrically connected to each other, and the short-circuit member is The connection mechanism for supplying electricity according to claim 1, wherein the connection mechanism is a flat plate.   The plug includes a power receiving side coupling surface, the receptacle includes a power feeding side coupling surface, the power receiving side coupling surface is disposed so as to surround the short-circuit member, and the power feeding side coupling surface is The power receiving side connecting surface and the power feeding side connecting surface are in surface contact with each other, and the power receiving terminal and the power feeding terminal are electrically connected to each other. Or when the shorting member and the connection detecting member are electrically connected to each other, the power receiving side connecting surface and the power feeding side connecting surface are configured to be in surface contact with each other. 6. A connection mechanism for supplying electricity according to claim 5. The receptacle according to any one of claims 1 to 6, wherein the receptacle includes a lid that can be opened and closed in accordance with the approach and separation of the plug in the normal direction of the power feeding side coupling surface . Connection mechanism for electricity supply. The plug is provided with an attachment / detachment mechanism for enabling attachment / detachment to / from an article including the electric device, and the attachment / detachment mechanism is a mechanism operated by a detachable handle member. 8. A connection mechanism for supplying electricity according to any one of 1 to 7. 9. The connection mechanism for supplying electricity according to claim 8 , wherein the plug includes a gripping member for an operator to grip by hand .

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