CN220190061U

CN220190061U - Liquid cooling power supply plug box and opposite plug structure for same

Info

Publication number: CN220190061U
Application number: CN202321787105.7U
Authority: CN
Inventors: 马高洁; 张江; 陈满
Original assignee: Hangzhou Yundian Technology Energy Co ltd
Current assignee: Hangzhou Yundian Technology Energy Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2023-12-15
Anticipated expiration: 2033-07-07

Abstract

The utility model provides a liquid cooling power supply plug box and a plug-in structure for the liquid cooling power supply plug box, which relate to the technical field of power supplies and comprise: a first panel, a second panel, and a pair of receptacles extending through the first panel and the second panel, wherein: the first panel and the second panel are separated by a support column; the socket is provided with a limiting mechanism, two ends of the limiting mechanism are respectively provided with a limiting part, the limiting mechanism penetrates through the first panel and the second panel, one limiting part protrudes out of the first panel by a first distance, and the other limiting part protrudes out of the second panel by a second distance. On the basis of the first panel, through increasing the second panel for the structure of inserting floats for system side copper bar, has reduced the wearing and tearing of sliding to system side copper bar cladding material, and through setting up stop gear on the socket, makes the socket unable crooked with the grafting in-process of system side copper bar, has effectively solved the blind problem of inserting to the socket under the centralized power supply framework of submerged liquid cooling.

Description

Liquid cooling power supply plug box and opposite plug structure for same

Technical Field

The utility model relates to the technical field of power supplies, in particular to a liquid cooling power supply plug box and an opposite plug structure for the liquid cooling power supply plug box.

Background

With the continuous rapid development of the server market, the power demand of the server also increases greatly. But the various demands of the system on the server power supply are also more stringent.

At present, the power supply of the server can be cooled in a liquid cooling mode to ensure the uniformity of the internal temperature of the power supply, namely, the power supply is wholly immersed in special refrigerating liquid, and heat generated in the power supply is taken away through liquid flow. The liquid cooling mode is high in heat dissipation efficiency, good in temperature uniformity and free of noise.

The liquid cooling mode commonly used at present is carried out by adopting a centralized power supply mode, namely, a plurality of PSU power supplies are connected in parallel, and a structure of outputting high power to a socket is adopted. The immersion type liquid cooling plug boxes are mostly in a vertical insertion mode, so that blind insertion with copper bars at the system side cannot be well realized; in addition, the liquid-cooled machine frame is vertically inserted, and in the vibration of transportation and work, the panel weight is heavy, so that the force received by the socket is large, and in the plug fit with the copper bar, the copper bar coating is easily worn, so that the contact resistance is overlarge, the power is further burnt out, and the immeasurable loss is caused.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a liquid cooling power supply plug box and an opposite plug structure for the liquid cooling power supply plug box, which can improve the performance of the opposite plug structure in the plug fit with a copper bar at the system side.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides an opposite-plug structure for a liquid cooling power supply plug box, which comprises the following components: a first panel, a second panel, and a pair of receptacles extending through the first panel and the second panel, wherein:

the first panel and the second panel are separated by a support column;

the socket is provided with a limiting mechanism, two ends of the limiting mechanism are respectively provided with a limiting part, the limiting mechanism penetrates through the first panel and the second panel, one limiting part protrudes from the first panel by a first distance, and the other limiting part protrudes from the second panel by a second distance.

In some alternatives of this embodiment, further comprising: the locating column is arranged between the first panel and the second panel, and comprises a first end and a second end, wherein:

the first panel is provided with a containing groove, the first end is fixed on the second panel, and the second end is matched with the containing groove.

In some alternatives of this embodiment, the length of the first end is less than or equal to the length of the support post.

In some optional manners of this embodiment, the limiting mechanism includes a limiting post, two ends of the limiting post are respectively provided with a limiting portion, and the limiting portions are fixed at two ends of the limiting post.

In some alternatives of this embodiment, the first panel and the second panel are provided with rectangular holes, wherein:

the opposite sockets penetrate through the first panel and the second panel through the rectangular holes;

the size of the rectangular hole is larger than the cross section size of the sleeved position on the pair of sockets.

In some alternatives of this embodiment, the first panel and the second panel are provided with through holes, the limiting mechanism passes through the first panel and the second panel through the through holes, and a cross-sectional area of the limiting portion is set so as to be capable of covering the through holes.

In some alternatives of this embodiment, the stop is a washer.

In some alternatives of this embodiment, the sum of the first distance and the second distance is positively correlated with the cross-sectional area of the limiter.

In some optional manners of this embodiment, at least one of the first panel, the second panel, the opposite socket body, the limiting post, the supporting post and the positioning post is made of metal or plastic that meets a preset strength.

The utility model also provides a liquid cooling power supply plug box, which comprises the opposite plug structure.

Aiming at the problems in the prior art, the liquid cooling power supply plug box and the opposite plug structure for the liquid cooling power supply plug box provided by the utility model have the advantages that the second panel is added on the basis of the first panel to fix the opposite plug seat, and the opposite plug seat is limited to move only in the XY plane direction and the Z axis direction; meanwhile, in the process of plugging with the copper bar on the system side, the opposite socket can move between the first panel and the second panel along the Z-axis direction, so that the opposite plug structure floats relative to the copper bar on the system side, the sliding abrasion of a plating layer of the copper bar on the system side is reduced, and the performance of the opposite plug structure in plugging and unplugging cooperation with the copper bar on the system side is effectively improved; and by introducing the limiting mechanism on the socket, the socket cannot be inclined in the plugging process with the copper bar at the system side due to the existence of the limiting parts at the two ends of the limiting column, so that the problem of blind plugging of the socket under the immersed liquid cooling centralized power supply architecture is effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a liquid-cooled power supply jack in one view;

FIG. 2 is an enlarged view of an insert structure for a liquid cooled power supply insert box according to an embodiment of the present utility model;

fig. 3 is an overall schematic diagram of a liquid-cooled power supply jack according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of an insert structure for a liquid cooled power supply insert box according to an embodiment of the present utility model;

FIG. 5 is one of the exploded schematic views of the docking structure for the liquid-cooled power supply jack according to the embodiment of the present utility model;

FIG. 6 is a schematic diagram of a second explosion of an opposite plug structure for a liquid-cooled power plug box according to an embodiment of the present utility model;

fig. 7 is a schematic cross-sectional view of an inserting structure for a liquid-cooled power supply plug-in box according to an embodiment of the utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In practical application, a copper bar used for a liquid cooling power supply plug box is connected with a copper bar on a system side, so as to supply power for the system side, and in the transportation or working process, unavoidable vibration occurs, so that the copper bar plating layer is worn out by the plug structure in the plug fit with the copper bar, and the problems of overlarge contact impedance and burnout outage are caused.

Therefore, the embodiment provides a novel liquid cooling power supply plug box, and fig. 1 and 3 respectively show the overall schematic diagrams of the liquid cooling power supply plug box under different visual angles; as shown in fig. 1 or 3, the liquid-cooled power supply plug box at least comprises a box body 200 and an opposite plug structure 100, and fig. 2 shows an enlarged view of the opposite plug structure 100 in the liquid-cooled power supply plug box of fig. 1; fig. 4 shows an enlarged view of the counter plug structure 100 in the liquid-cooled power supply plug box of fig. 3.

As shown in fig. 2 and 4, the inserting structure for the liquid cooling power supply plug box of the embodiment includes:

a first panel 1, a second panel 2, and a counter-receptacle 4 extending through the first panel 1 and the second panel 2, wherein:

the socket 4 is provided with a limiting mechanism 5, two ends of the limiting mechanism 5 are respectively provided with a limiting part 50, the limiting mechanism 5 penetrates through the first panel 1 and the second panel 2, wherein the distance of one limiting part 50 protruding from the first panel 1 is a first distance, and the distance of the other limiting part 50 protruding from the second panel 2 is a second distance.

Referring to fig. 6, an exploded schematic view corresponding to the above-mentioned plugging structure for the liquid-cooled power supply plug box of fig. 4 is shown, wherein the plugging base 4 includes a soft copper bar portion 41 and a plugging portion 43, and the plugging portion 43 is used for plugging the system side copper bar in practical application. The plug-in part 43 penetrates into the first panel, the soft copper bar part 41 penetrates into the second panel, and the first panel 1 and the second panel 2 are separated by the support column 7, the first panel 1 is a panel close to the system side copper bar, and the second panel 2 is a panel far away from the system side copper bar and close to the soft copper bar part 41.

Referring to fig. 5, an exploded view corresponding to the above-described plug-in structure for the liquid-cooled power supply plug-in box of fig. 2 is shown. In actual installation, the limiting mechanism may be mounted on the counter socket 4 through an opening 40 provided in the counter socket. Specifically, the limiting mechanism comprises a limiting column 51 and a limiting part 50, wherein the limiting column 51 is installed on the opposite socket 4 through the opening 40, a gap is reserved between the limiting column 51 and the opening 40, namely, the diameter of the limiting column 51 is smaller than that of the opening 40, so that the opposite socket 4 can flexibly move on the limiting column 51 along the Z direction, the opposite plug structure floats relative to the copper bar on the system side, the sliding abrasion of a plating layer of the copper bar on the system side is reduced, and the performance of the opposite plug structure in the plug fit with the copper bar on the system side is effectively improved.

It should be appreciated that the number of limiting mechanisms is equal to the number of openings 40, for example, in fig. 5, the number of limiting mechanisms is 3, and the corresponding number of openings 40 is also 3. It should be noted that the number of the limiting mechanisms and the openings 40 in the drawings in the embodiment of the present utility model are not limited by the present utility model, and the number of the limiting mechanisms and the openings in the drawings is exemplary.

With continued reference to fig. 5, through holes are further formed in the first panel 1 and the second panel 2, and the limiting mechanism can pass through the first panel 1 and the second panel 2 through the through holes, for example, one end of the limiting post 51 passes through the first through hole 10 formed in the first panel 1, and the other end of the limiting post 51 passes through the second through hole 20 formed in the second panel 2, where it is noted that the first through hole 10 and the second through hole 20 are disposed corresponding to the opening 40.

In this embodiment, the cross-sectional dimension of the spacing post is smaller than the dimensions of the first through hole 10 and the second through hole 20, so that the opposite socket 4 can translate along the Z-axis direction on the spacing post, and meanwhile, the opposite socket 4 can also drive the spacing post to translate on the XY-plane, so as to prevent the opposite socket from skewing in the moving process, the spacing parts are fixed at two ends of the spacing post, and therefore, based on the existence of the spacing parts at two ends of the spacing post, the opposite socket 4 cannot deflect on the plane formed by the X-axis and the Z-axis, and cannot overturn on the plane formed by the Y-axis and the Z-axis, in other words, the opposite socket can only translate in the XY-plane and the Z-axis direction, and the opposite socket cannot skew in the inserting process with the system side copper bar, thereby effectively solving the blind insertion problem of the socket under the immersed liquid cooling centralized power supply architecture.

In this embodiment, when the limit post translates on the XY plane, the cross-sectional area of the limit portion is set to be capable of covering the first through hole 10 and the second through hole 20 all the time, so that when moving, part of the limit portion is embedded into the first through hole or the second through hole to be blocked, and the movement of the opposite-insertion structure in the XY plane or the Z axis direction is disturbed, and the blind-insertion effect is affected.

For example, as shown in fig. 5, in some alternatives of the present embodiment, the limiting portion 50 is a spacer, the spacer at one end of the limiting post protrudes from the first panel by a first distance, the spacer at the other end of the limiting post protrudes from the second panel by a second distance, and the spacers are fixed at two ends of the limiting post 51. When the main body of the limiting mechanism is a limiting column 51 with threaded holes at two ends, the gasket can be prevented from falling from the limiting column by arranging screws at two ends of the limiting column during installation; when the main body of the limiting mechanism is a solid limiting column 51, the gaskets can be prevented from falling from the limiting column by arranging nuts at two ends of the limiting column during installation.

When the limiting part is a circular gasket, the diameter of the limiting part is larger than the diagonal length of the through holes (such as the first through hole 10 and the second through hole 20) formed on the first panel and the second panel; when the spacing portion is a square spacer, its smallest side should be larger than the largest sides of the through holes (e.g., the first through hole 10 and the second through hole 20).

It should be noted that, in the present embodiment, the shape and form of the limiting portion are not limited, and when the cross-sectional dimension of the nut or the cross-sectional dimension of the screw cap is larger than the dimensions of the first through hole 10 and the second through hole 20, the limiting portion 50 may be just a nut or a screw, and those skilled in the art can set the form and the installation mode of the limiting portion according to specific requirements.

As shown in fig. 5, the inserting structure further includes a support column 7 for spacing the first panel 1 and the second panel 2, and a screw 6 for fixing, a positioning column 8, a screw 9, etc., wherein the screw 6 is provided at both ends of the spacing column 51 for preventing the spacing portion 50 from falling from both ends of the spacing column 51; the positioning column 8 comprises a first end (big end) and a second end (small end); the screw 9 is used to set the large end of the positioning post 8 and one end of the support post 7 on the second panel 2.

In the mounting, first, the large end of the positioning column 8 and one end of the supporting column 7 are mounted on the second panel 2 by a fixing device, for example, the large end of the positioning column 8 and one end of the supporting column 7 are locked and attached on the second panel 2 by a screw 9; secondly, the small end of the positioning column 8 is required to be inserted into the accommodating groove 14 arranged on the first panel 1, the accommodating groove 14 is matched with the small end of the positioning column 8, namely, the shape of the accommodating groove 14 is matched with the small end of the positioning column 8, at the moment, the positioning column 8 plays a role of a positioning screw hole, namely, the positioning column 8 is equivalent to a positioning pin, so that the other end of the supporting column 7 corresponds to a through hole on the first panel 1; finally, the other end of the support column is mounted on the first panel 1 by fixing means, for example, the other end of the support column 7 is locked to the first panel 1 with a round washer and screw. In a specific example, as shown in fig. 5, the receiving groove 14 may be a hexagonal hole provided on the first panel, which is not limited in the present utility model.

In the above described mounting example, the support column 7 separates the first panel from the second panel, and the function of the positioning column 8 is to position the screw holes when the support column 7 is mounted. Specifically, the small end of the positioning column 8 is inserted into the accommodating groove on the first panel 1 to be positioned, wherein the small end of the positioning column 8 can be completely inserted or partially inserted into the accommodating groove, so that the length of the large end of the positioning column 8 is less than or equal to the length of the supporting column 7, otherwise, the other end of the supporting column 7 cannot be fixed on the first panel 1.

It should be noted that, the positioning column can be riveted on any panel, at this time, the positioning column only has one end, and the other panel is correspondingly provided with a containing groove matched with the end, so as to ensure the accurate positioning of the two panels; the positioning column can further comprise 3 ends, the first end, the second end and the third end are sequentially connected, and if the third end is inserted into the accommodating groove matched with the first end, the sum of the lengths of the first end and the second end is smaller than or equal to the length of the supporting column 7.

It should be noted that, the style of the positioning column is not limited in this embodiment, and a person skilled in the art can set a corresponding positioning column according to actual requirements, so as to achieve accurate alignment of the first panel and the second panel. In addition, in this embodiment, at least two positioning columns should be disposed diagonally, and the positioning columns are preferably in a cylindrical structure.

With continued reference to fig. 5, the first panel 1 and the second panel 2 are further provided with rectangular holes, wherein the rectangular holes 12 on the first panel 1 and the rectangular holes (not numbered in fig. 5) on the second panel 2 are used to accommodate the counter sockets 4, such that the counter sockets 4 penetrate the first panel 1 and the second panel 2 through the rectangular holes. It will be appreciated that the rectangular apertures in the first panel correspond to the rectangular apertures in the second panel.

Further, in the present embodiment, the size of the rectangular holes in the first and second panels is set to be larger than the cross-sectional size of the counter socket at the sleeved position, as indicated by position 42 in fig. 5, for example, the long side size of the rectangular hole 12 in the first panel 1 is larger than the long side size of the cross-section of the counter socket at the position; the width dimension of the rectangular hole 12 is larger than the width dimension of the cross section of the opposite socket at the position, wherein the long side is the side of the rectangular hole in the X-axis direction, and the wide side is the side of the rectangular hole in the Y-axis direction, so that the movable space of the opposite socket 4 on the XY plane in the rectangular hole 12 on the first panel is ensured, assembly tolerance is compensated, and the blind insertion problem of the opposite socket under the immersed liquid cooling centralized power supply architecture is favorably solved.

Similarly, the long side dimension of the rectangular hole of the second panel 2 is larger than the long side dimension of the cross section of the opposite socket at the position, the wide side dimension of the rectangular hole of the second panel 2 is larger than the wide side dimension of the cross section of the opposite socket at the position, wherein the long side is the side of the rectangular hole in the X-axis direction, and the wide side is the side of the rectangular hole in the Y-axis direction, so that the socket 4 can be ensured to have a movable space on the XY plane of the rectangular hole on the second panel, assembly tolerance is compensated, and the problem of blind insertion of the socket under the immersed liquid cooling centralized power supply architecture is solved.

According to the embodiment, the second panel is added, the rectangular hole is formed in the middle of the first panel and the second panel, the size of the rectangular hole is larger than the size of the cross section of the socket at the sleeving position, the socket can move in the XY plane direction in the rectangular hole of the first panel and the rectangular hole of the second panel, the socket cannot be skewed, assembly tolerance is made up, and the problem of blind insertion of the socket under an immersed liquid cooling centralized power supply framework is solved.

In the present embodiment, the Z-axis direction corresponds to the direction of inserting and extracting the socket and the system-side copper bar, and the X-axis direction corresponds to the longitudinal direction of the rectangular hole 12 of the first panel (or the rectangular hole of the second panel); the Y-axis direction corresponds to the short side direction of the rectangular hole 12 on the first panel (or the rectangular hole on the second panel), and in this embodiment, the X-axis direction, the Y-axis direction, and the Z-axis direction of fig. 2, 4, 5, 6, and 7 coincide.

Referring to fig. 7, a schematic cross-sectional view of the opposite plug structure on the AA surface of the liquid-cooled power supply plug box shown in fig. 1 is shown, where in a state that the opposite plug structure is not connected to a system side copper bar or does not vibrate, a distance of one limiting portion 50 of the limiting mechanism protruding from the first panel 1 is L1, i.e. a first distance, and a distance of the other limiting portion 50 protruding from the second panel 2 is L2, i.e. a second distance.

In the present embodiment, in order to prevent tilting of the socket due to an excessive distance by which the stopper 50 protrudes from the first and second panels, the sum of the first and second distances is set to be positively correlated with the cross-sectional area of the stopper, that is, the smaller the cross-sectional area of the stopper is, the smaller the sum of the first and second distances is; the larger the cross-sectional area of the stopper, the larger the sum of the first distance and the second distance.

So far, this embodiment is through setting up stop gear on to the socket, owing to the existence of spacing post both ends limit part for to the socket unable crooked in the grafting in-process with system side copper bar, effectively solved the blind of immersed liquid cooling centralized power supply framework under to the socket and inserted the problem.

Meanwhile, the opposite socket can move between the first panel and the second panel along the Z-axis direction, so that the opposite socket structure floats relative to the copper bar at the system side, when vibration impact is received, the opposite socket moves towards the stress direction, the soft copper bar at the rear end of the opposite socket plays a role similar to a spring, impact potential energy is absorbed, sliding abrasion of a plating layer of the copper bar at the system side can be reduced, and performance of the opposite socket structure in plug-and-pull fit with the copper bar at the system side is effectively improved.

In some alternatives of this embodiment, the counter sockets are chamfered to enable the counter sockets to guide the copper bars on the side of the insertion system in the Y-axis direction. In addition, the materials of the first panel, the second panel, the opposite socket, the limiting mechanism, the support column and the positioning column are not limited to galvanized plate, stainless steel or other metals, but also can be plastic parts with enough strength, which is not limited in this embodiment.

Further, the screws, the gaskets, and the like in the embodiment are not limited to general-purpose components, and a customization mode can be adopted to reduce the inclination of the socket, namely, the position of the socket is limited in a range, so that the socket can be correctly aligned with the copper bar on the system side, and the performance of the alignment structure in the insertion and extraction matching with the copper bar is improved.

In still another embodiment of the opposite socket structure, in order to optimize the volume of the opposite socket structure and reduce the process steps, the limiting mechanism and the opposite socket seat can be directly arranged as a whole, at this time, a second panel is not required to be added, the limiting mechanism protrudes out of the first panel by a small distance, and the opposite socket can move in the small distance so that the opposite socket structure floats relative to the copper bar on the system side, when the opposite socket structure is subjected to vibration impact, the opposite socket can move for a small distance in the stress direction, and as the soft copper bar is connected to the rear end of the opposite socket, the impact force is reduced, the opposite socket seat and the copper bar on the system side can be slowly combined, and thus the sliding abrasion of the opposite socket structure to the copper bar on the system side can be reduced. Meanwhile, in order to reduce the deflection of the opposite-plug structure in the directions except for the XY plane and the Z axis, the area of the limiting part in the implementation is set to be larger than that of the limiting part in the embodiment, and the problem of blind plug of the socket under the immersed liquid cooling centralized power supply architecture is effectively solved.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is further noted that in the description of the present utility model, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

It should be understood that the foregoing examples of the present utility model are merely illustrative of the present utility model and not limiting of the embodiments of the present utility model, and that various other changes and modifications can be made by those skilled in the art based on the above description, and it is not intended to be exhaustive or to limit the utility model to the precise form disclosed, and all such changes and modifications that come within the meaning of the utility model are intended to be embraced by the utility model.

Claims

1. An opposite-plug structure for a liquid cooling power supply plug box, which is characterized by comprising: a first panel, a second panel, and a pair of receptacles extending through the first panel and the second panel, wherein:

the first panel and the second panel are separated by a support column;

2. The structure of claim 1, further comprising: the locating column is arranged between the first panel and the second panel, and comprises a first end and a second end, wherein:

3. The structure of claim 2, wherein the length of the first end is less than or equal to the length of the support post.

4. The structure according to claim 1, wherein the limit mechanism comprises a limit post, the limit posts are respectively provided with limit portions at both ends, and the limit portions are fixed at both ends of the limit post.

5. The structure of claim 1, wherein the first and second panels are provided with rectangular holes, wherein:

6. The structure according to claim 4, wherein the first panel and the second panel are provided with through holes, the stopper mechanism passes through the first panel and the second panel through the through holes, and a cross-sectional area of the stopper portion is set so as to be capable of covering the through holes.

7. The structure of claim 6, wherein the limiting portion is a spacer.

8. The structure of claim 6, wherein the sum of the first distance and the second distance is positively correlated with the cross-sectional area of the stopper.

9. The structure of any one of claims 1-8, wherein at least one of the first panel, the second panel, the opposite socket body, the limiting post, the support post, and the positioning post is a plastic part made of metal or satisfying a predetermined strength.

10. A liquid-cooled power supply jack comprising an opposite-plug structure according to any one of claims 1 to 9.