CN207895365U - A kind of industrial computer host - Google Patents

Abstract

The utility model discloses a kind of industrial computer host, including cabinet and the mainboard module and hard disc module that are installed in the cabinet；The cabinet includes the front panel of the front end of upper radiator, lower radiator, the front end for being separately connected the upper radiator and the lower radiator and the rear panel of the rear end for being separately connected the upper radiator and the rear end of the lower radiator；The mainboard module includes the motherboard for being fixed on the lower radiator and the multiple I O boards for being plugged in the motherboard；The hard disc module includes the bracket for being fixed on the lower radiator and the multiple hard disks for being installed on the bracket.In this way, the mainboard module and hard disc module is compact is arranged in the cabinet, and do not use wire rod to connect between each other, to which the industrial computer host has the advantages that occupy little space, is suitable for adverse circumstances.

Description

A kind of industrial computer host

Technical field

The utility model is related to industrial computer technical fields, and in particular to a kind of industrial computer host.

Background technology

Computer greatly changes our life in nearest decades.In the industry, computer also obtains Corresponding application, here it is industrial computers.Industrial computer is mainly used for Industry Control, test etc..

Industrial computer is mainly that the above cabinet mode is in the majority, and size is all bigger at present, makes the industrial ring that space is small Border cannot install and use, such as there are certain space requirement in numerical control device and vehicle-mounted inside.Also I/O expansion be with wire rod with Motherboard connection is mounted on rear panel again, to get loose phenomenon in severe use environment Wire material terminal, makes calculating Machine poor contact and be unable to normal use, data acquisition is influenced serious.

For this reason, it is necessary to a kind of new industrial computer host be designed, to overcome the above problem.

Utility model content

Technical problem to be solved in the utility model is, for the above-mentioned prior art in there are the problem of, provide one It is kind compact-sized occupy little space, Wire material terminal is suitable for the industrial computer hosts of adverse circumstances less.

Technical solution adopted by the utility model to solve its technical problems is：

There is provided a kind of industrial computer host, including cabinet and the mainboard module and hard disk mould that are installed in the cabinet Block；

The cabinet includes upper radiator, lower radiator, the front end for being separately connected the upper radiator and the lower heat dissipation The front panel of the front end of device and the rear panel for being separately connected the rear end of the upper radiator and the rear end of the lower radiator；

The mainboard module includes the motherboard for being fixed on the lower radiator and the multiple IO for being plugged in the motherboard Plate；

The hard disc module includes the bracket for being fixed on the lower radiator and the multiple hard disks for being installed on the bracket.

In industrial computer host provided by the utility model, the upper radiator includes top plate and is connected to described The first left plate and the first right panel of the left and right ends of top plate；The lower radiator includes bottom plate and is connected to the bottom plate The second left plate and the second right panel of left and right ends；It is the top plate, first left plate, first right panel, the bottom plate, described It is equipped with the sheet metal being intervally arranged on the outer surface of second left plate and second right panel；First left plate and described first Right panel is separately connected second left plate and second right panel.

In industrial computer host provided by the utility model, the hard disc module further includes the number being connect with the hard disk According to line plug；The bracket includes support plate and the fixed frame for being fixed on the support prelaminar part；The hard disk is fixed on described The rear portion of support plate；The data cable plug is clamped between the fixed frame and the support plate.

In industrial computer host provided by the utility model, the fixed frame includes：

Head cover is set to the head cover of the upside of the data cable plug, for preventing the data cable plug from tilting；

Two fixed feets, are respectively arranged on the left and right sides of the data cable plug, for preventing data cable plug or so from shaking It is dynamic；

Anti-delinking part is set to the front side of the data cable plug, for preventing the data cable plug from moving forward.

In industrial computer host provided by the utility model, the upper surface of the lower radiator is equipped with multiple be uniformly distributed The first stud；The bracket includes support plate and the upper frame that is fixed in the support plate；The hard disk is set to the branch It is fixedly connected between fagging and the upper frame and with the upper frame；The edge of the support plate is equipped with multiple bump protection rings, Multiple bump protection rings are inserted and fixed correspondingly in multiple first studs.

In industrial computer host provided by the utility model, the hard disc module further includes two hard disks, two It is plugged in the data cable plug of two hard disks respectively and is fixed on the support plate and is located at the front side of the upper frame Location structure；Be placed between the support plate and the upper frame to two hard disk stacked on top, and be fixedly connected with to The upper frame；Two data cable plugs fix and the location structure.

In industrial computer host provided by the utility model, the upper surface of the front side of the support plate is equipped with the second spiral shell Column；The location structure includes two fixed frames arranged up and down and the intermediate supporting spring between two fixed frames；Under The fixed frame of side is supported in second stud and by between the underlying fixed frame and the intermediate supporting spring Lower connector and the support plate connect it is solid；The intermediate supporting spring is supported in the lower connector and by being located at the intermediate support Upper connector between piece and the fixed frame of top connects solid with the lower connector；The fixed frame of top supports and consolidates Due to the upper connector.

In industrial computer host provided by the utility model, two data cable plugs are arranged up and down, the institute of lower section It states data cable plug to be fastened between the fixed frame and the intermediate supporting spring of lower section, the data cable plug of top fixes Between the intermediate supporting spring and the fixed frame of top.

In industrial computer host provided by the utility model, the upper frame includes upper plate and is connected to the upper plate Opposite both sides and the side plate extended downwardly, the upper plate are equipped with the first heat emission hole of perforation, and the side plate is equipped with the of perforation Two heat emission holes；The support plate is equipped with the third heat emission hole of perforation.

In industrial computer host provided by the utility model, the multiple I O board includes preceding I O board and rear I O board, described Preceding I O board and the rear I O board are plugged in the motherboard by a connecting plate；The upper surface of the motherboard is equipped with the first socket With the first connector for external equipment grafting；The lower surface of the connecting plate is equipped with the first plug and the second plug, described The upper surface of connecting plate is equipped with third socket；The upper surface of the preceding I O board is equipped with the second socket and for external equipment grafting Second connector；The upper surface of I O board is equipped with the third connector for external equipment grafting after described, it is described after under I O board Surface is equipped with third plug；Wherein, first plug is plugged in first socket, and second plug is plugged in described Two sockets, the third plug are plugged in the third socket.

Implement industrial computer host provided by the utility model, following advantageous effect can be reached：The industry calculates Machine host, including cabinet and the mainboard module and hard disc module that are installed in the cabinet；The cabinet include upper radiator, under The front panel of the front end of radiator, the front end for being separately connected the upper radiator and the lower radiator and it is separately connected institute State the rear panel of the rear end of radiator and the rear end of the lower radiator；The mainboard module includes being fixed on the lower heat dissipation The motherboard of device and the multiple I O boards for being plugged in the motherboard；The hard disc module includes the support for being fixed on the lower radiator Frame and the multiple hard disks for being installed on the bracket.In this way, the mainboard module and hard disc module it is compact be arranged in the cabinet It is interior, and do not use wire rod to connect between each other, it occupies little space to which the industrial computer host has, be suitable for severe ring The advantages of border.

Description of the drawings

Fig. 1 is the perspective exploded view of the utility model first embodiment；

Fig. 2 is the Three-dimensional combination diagram of the utility model first embodiment；

Fig. 3 is the stereoscopic schematic diagram of upper radiator in the utility model first embodiment；

Fig. 4 is the stereoscopic schematic diagram of lower radiator in the utility model first embodiment；

Fig. 5 is the Three-dimensional combination diagram of mainboard module in the utility model first embodiment；

Fig. 6 is the Three-dimensional combination diagram of hard disc module in the utility model first embodiment；

Fig. 7 is the perspective exploded view of hard disc module in the utility model second embodiment；

Fig. 8 is the Three-dimensional combination diagram of hard disc module in the utility model second embodiment；

The drawing reference numeral explanation of specific implementation mode：

Specific implementation mode

For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed Illustrate specific embodiment of the present utility model.Obviously, the described embodiments are only a part of the embodiments of the utility model, Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation Property labour under the premise of the every other embodiment that is obtained, shall fall within the protection scope of the present invention.

Embodiment one

As shown in Figure 1, the first embodiment of industrial computer host provided by the utility model, the industrial computer master Machine includes cabinet 1 and the mainboard module 2 being installed in the cabinet 1 and hard disc module 3.

The cabinet 1 includes upper radiator 11, lower radiator 12, the front end for being separately connected the upper radiator 11 and described The front panel 13 of the front end of lower radiator 12 and rear end and the lower radiator 12 for being separately connected the upper radiator 11 The rear panel 14 of rear end.Referring to Fig. 3, the upper radiator 11 includes top plate 111 and the left and right for being connected to the top plate 111 First left plate 112 and the first right panel 113 at both ends；Referring to Fig. 4, the lower radiator 12 includes bottom plate 121 and is connected to The second left plate 122 and the second right panel 123 of the left and right ends of the bottom plate 121；Referring to Fig. 2, first left plate 112 and described First right panel 113 is separately connected second left plate 122 and second right panel 123.The top plate 111, first left plate 112, on the outer surface of first right panel 113, the bottom plate 121, second left plate 122 and second right panel 123 Equipped with the sheet metal 15 being intervally arranged.In this way, may make the cabinet 1 itself to have good heat dissipation effect, without volume Outer installation radiator, greatly saves the space in cabinet 1.The bottom of the lower radiator 12 is also equipped with two feet Frame 4, in order to which the cabinet 1 to be fixed in other equipment.

Referring to Fig. 6, the hard disc module 3 includes the bracket 31 for being fixed on the lower radiator 12, is installed on the bracket 31 two hard disks 32 and two data cable plugs 33 being connect respectively with two hard disks 32.The bracket 31 includes Support plate 311 and two fixed frames 312.In the present embodiment, two fixed frames 312 or so are abreast fixed on by screw 311 front of the support plate.After two hard disks 32 or so are abreast directly fixed on the support plate 311 by screw Portion.The data cable plug 33 in left side is clamped between the fixed frame 312 and the support plate 311 in left side, right side The data cable plug 33 is clamped between the fixed frame 312 and the support plate 311 on right side, in this way, two numbers The phenomenon that being fixed well according to line plug 33, be not susceptible to get loose with the corresponding hard disk 32.

The fixed frame 312 includes what head cover 3121, two was extended downwardly from the left and right ends of the head cover 3121 respectively Fixed feet 3122, and the anti-delinking part 3123 that extends vertically downwards from the forward position of the head cover 3121.Wherein, the head cover 3121 Head cover 3121 positioned at the upside of the data cable plug 33 can prevent the data cable plug 33 from tilting；Two fixations Foot 3122 is respectively that can prevent 33 double swerve of data cable plug in the left and right sides of the data cable plug 33；The anticreep Portion 3123 is located at the front side of the data cable plug 33, and the data cable plug 33 can be prevented to move forward.Preferably, described Anti-delinking part 3123 includes three retaining pieces, and two of which is connected to the left and right ends in the forward position of the head cover 3121, Another is connected to the middle part in the forward position of the head cover 3121, in this way, the anti-delinking part 3123 can well adapt to the data The structure of line plug 33, and do not influence anticreep effect again.

Referring to Fig. 5, the mainboard module 2 includes being fixed on the motherboard 21 of the lower radiator 12 and being plugged in the master Multiple I O boards of machine plate 21.The multiple I O board includes preceding I O board 22 and rear I O board 23, the preceding I O board 22 and it is described after I O board 23 are plugged in the motherboard 21 by a connecting plate 24；(do not scheme equipped with multiple first sockets the upper surface of the motherboard 21 Show) and for external equipment grafting multiple first connectors 212；The lower surface of the connecting plate 24 is equipped with multiple first plugs 241 and multiple second plugs 242, the upper surface of the connecting plate 24 is equipped with multiple third sockets 243；The preceding I O board 22 it is upper Surface is equipped with multiple second sockets 221 and multiple second connectors 222 for external equipment grafting；I O board 23 is upper after described Surface is equipped with multiple third connectors 231 for external equipment grafting, and the lower surface of the rear I O board 23 is equipped with multiple thirds Plug 232；Wherein, multiple first plugs 241 are plugged in multiple first sockets (not shown) correspondingly, multiple Second plug 242 is plugged in multiple second sockets 221 correspondingly, and multiple third plugs 232 1 are a pair of It is plugged in multiple third sockets 243 with answering.In this way, the preceding I O board 22 and the rear I O board 23 only pass through the connecting plate 24 can be connected to the motherboard 21 so that the function of the motherboard 21 is extended, and the mainboard module 2 does not use Any wire rod, it is ensured that be not in that wrong connects leakage between the motherboard 21, the preceding I O board 22 and the rear I O board 23 The phenomenon that, to improve functional stabilization, productivity and product qualification rate.

I O board 23 is located at the surface of the motherboard 21 after described.The third connector 231 is connect with described first The direction of device 212 is consistent.The connecting plate 24 is forward extended out in the motherboard 21, and second plug 242 is set to the company The part for stretching out in the motherboard 21 of fishplate bar 24.The front of motherboard 21 described in the preceding I O board 22 and with the host Plate 21 is concordant.Second connector 222 is opposite with the direction of first connector 212.Institute, second connector 222 It is directed at the preceding interface 131, first connector 212 and the third connector 231 are directed at the rear interface 141. Preceding interfaces 131 of the front panel 13 equipped with multiple front and back perforations, meanwhile, the rear panel 14 is equipped with multiple front and back perforations Interface 141 afterwards, multiple preceding interfaces 131 correspond multiple second connectors 222, multiple rear interfaces 141 correspond multiple first connectors 212 and multiple third connectors 231, in this way, the industry is facilitated to calculate Machine host is connect simultaneously with multiple external equipments.

In conclusion implementing industrial computer host provided in this embodiment, have the advantages that：

1, the industrial computer host, including cabinet 1 and the mainboard module 2 that is installed in the cabinet 1 and hard disk mould Block 3；The cabinet 1 include upper radiator 11, lower radiator 12, the front end for being separately connected the upper radiator 11 and it is described it is lower dissipate The front panel 13 of the front end of hot device 12 and be separately connected the upper radiator 11 rear end and the lower radiator 12 rear end Rear panel 14；The mainboard module 2 includes being fixed on the motherboard 21 of the lower radiator 12 and being plugged in the motherboard 21 multiple I O boards；The hard disc module 3 includes being fixed on the bracket 31 of the lower radiator 12 and being installed on the bracket 31 Multiple hard disks 32.In this way, the mainboard module 2 and hard disc module 3 is compact is arranged in the cabinet 1, and between each other Wire rod is not used to connect, to which the industrial computer host has the advantages that occupy little space, is suitable for adverse circumstances.

2, the top plate 111, first left plate 112, first right panel 113, the bottom plate 121, second left side It is equipped with the sheet metal 15 being intervally arranged on the outer surface of plate 122 and second right panel 123.In this way, may make the cabinet 1 Itself have good heat dissipation effect, without additional installation radiator, greatly saves the space in cabinet 1.

3, the data cable plug 33 in left side is clamped between the fixed frame 312 and the support plate 311 in left side, The data cable plug 33 on right side is clamped between the fixed frame 312 and the support plate 311 on right side, in this way, two The data cable plug 33 is fixed well, the phenomenon that being not susceptible to get loose with the corresponding hard disk 32.

4, the preceding I O board 22 and the rear I O board 23 only can be connected to the motherboard 21 by the connecting plate 24, So that the function of the motherboard 21 is extended, the mainboard module 2 is without using any wire rod, it is ensured that the host Be not in the phenomenon that wrong connects leakage between plate 21, the preceding I O board 22 and the rear I O board 23, to improve functional stabilization, Productivity and product qualification rate.

5, the front panel 13 is equipped with multiple front and back preceding interfaces 131 penetrated through, meanwhile, the rear panel 14 is equipped with multiple The rear interface 141 of front and back perforation, multiple preceding interfaces 131 correspond multiple second connectors 222, Duo Gesuo It states rear interface 141 and corresponds multiple first connectors 212 and multiple third connectors 231, in this way, facilitating institute Industrial computer host is stated to connect simultaneously with multiple external equipments.

Embodiment two

Industrial computer host provided in this embodiment and embodiment one difference lies in：The structure of hard disc module 3 is different.

Referring to Fig. 7 and Fig. 8, the hard disc module 3 is arranged in including 31, two stacked on top of bracket in the bracket 31 Hard disk 32, two be plugged in the data cable plug 33 of two 32 front ends of the hard disk respectively and be fixed on the bracket 31 On location structure.

The bracket 31 includes support plate 311 and the upper frame 313 being fixed in the support plate 311；Two described hard Disk 32 is set between the support plate 311 and the upper frame 313 and is fixedly connected with the upper frame 313；The support plate There are four bump protection ring 314, each two of left and right edges for 311 edge installation.Meanwhile the upper surface of the lower radiator 12 is equipped with Four equally distributed first studs 124, four bump protection rings 314 are inserted in correspondingly and are fixed on four described first Stud 124 is fixed between the bump protection ring 314 and first stud 124 by screw.In this way, extraneous generate vibration When, for example, when hitting, four bump protection rings 314 can play cushioning and protection, to avoid extraneous vibration The work of hard disk 32 is had an impact.

The upper surface of the front side of the support plate 311 is set there are two the second stud 3111；The location structure includes up and down Two fixed frames 312 and the intermediate supporting spring 315 between two fixed frames 312 of arrangement；The fixed frame of lower section 312 are supported in second stud 3111 and by between the underlying fixed frame 312 and the intermediate supporting spring 315 Two lower connectors 316 connect solid with the support plate 311；The intermediate supporting spring 315 be supported in two lower connectors 316 and By two upper connectors 317 between the intermediate supporting spring 315 and the fixed frame 312 of top and two it is described under Connector 316 connects solid；The fixed frame 312 of top, which supports, is simultaneously fixed on two upper connectors 317, top it is described solid Determine frame 312 to fasten by screw with two upper connectors 317.Two about 33 data cable plugs arrangements, lower section The data cable plug 33 is fastened between the fixed frame 312 and the intermediate supporting spring 315 of lower section, the data of top Line plug 33 is fastened between the intermediate supporting spring 315 and the fixed frame 312 of top.In this way, two data lines are inserted First 33 are fixed well, the phenomenon that being not susceptible to get loose with the corresponding hard disk 32.

In the present embodiment, the structure of the fixed frame 312 is identical as being provided in embodiment one.

In the present embodiment, the structure of the upper connector 317 and the lower connector 316 is roughly the same and height is different, The upper connector 317 and the lower connector 316 are made of copper material, by with externally threaded first segment and with interior spiral shell The second segment of line is constituted.

In the present embodiment, the upper frame 313 includes upper plate 3131 and the opposite both sides for being connected to the upper plate 3131 And the side plate 3132 extended downwardly, the upper plate 3131 are equipped with the first heat emission hole 3133 of perforation, the side plate 3132 is equipped with and passes through The second logical heat emission hole 3134；The support plate 311 is equipped with the third heat emission hole 3112 of perforation.The hard disk 32 is tight by screw It is fixed in two side plates 3132.So, it is ensured that the temperature of the hard disk 32 is unlikely to excessively high, and influences its normal work Make.

Compared with embodiment one, implements industrial computer host provided in this embodiment, have the advantages that：

1, two hard disks 32 are fixed on the bracket 31 by the way of stacked on top, take full advantage of the cabinet 1 height space.

2, the bracket 31 includes support plate 311 and the upper frame 313 being fixed in the support plate 311, the support There are four bump protection ring 314, the upper surface of the lower radiator 12 sets that there are four equally distributed first spiral shells for the edge installation of plate 311 Column 124, four bump protection rings 314 are inserted in correspondingly and are fixed on four first studs 124.In this way, extraneous production When raw vibration, for example, when hitting, four bump protection rings 314 can play cushioning and protection, to avoid the external world Vibration the work of hard disk 32 is had an impact.

3, the upper plate 3131 is equipped with the first heat emission hole 3133 of perforation, and the side plate 3132 is equipped with the second heat dissipation of perforation Hole 3134；The support plate 311 is equipped with the third heat emission hole 3112 of perforation.The hard disk 32 is anchored on by screw described in two Side plate 3132.So, it is ensured that the temperature of the hard disk 32 is unlikely to excessively high, and influences its normal work.

The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to The specific implementation mode stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model Under, many forms can be also made, these are belonged within the protection of the utility model.

Claims (10)

1. a kind of industrial computer host, which is characterized in that including cabinet and the mainboard module being installed in the cabinet and firmly Disk module；

The cabinet includes upper radiator, lower radiator, the front end for being separately connected the upper radiator and the lower radiator The front panel of front end and the rear panel for being separately connected the rear end of the upper radiator and the rear end of the lower radiator；

The mainboard module includes the motherboard for being fixed on the lower radiator and the multiple I O boards for being plugged in the motherboard；

The hard disc module includes the bracket for being fixed on the lower radiator and the multiple hard disks for being installed on the bracket.

2. industrial computer host according to claim 1, which is characterized in that the upper radiator includes top plate and difference It is connected to the first left plate and the first right panel of the left and right ends of the top plate；The lower radiator includes bottom plate and is connected to The second left plate and the second right panel of the left and right ends of the bottom plate；The top plate, first left plate, first right panel, institute It states and is equipped with the sheet metal being intervally arranged on the outer surface of bottom plate, second left plate and second right panel；Described first is left Plate and first right panel are separately connected second left plate and second right panel.

3. industrial computer host according to claim 1, which is characterized in that the hard disc module further include with it is described hard The data cable plug of disk connection；The bracket includes support plate and the fixed frame for being fixed on the support prelaminar part；The hard disk It is fixed on the rear portion of the support plate；The data cable plug is clamped between the fixed frame and the support plate.

4. industrial computer host according to claim 3, which is characterized in that the fixed frame includes：

Head cover is set to the head cover of the upside of the data cable plug, for preventing the data cable plug from tilting；

Two fixed feets, are respectively arranged on the left and right sides of the data cable plug, for preventing data cable plug double swerve；

Anti-delinking part is set to the front side of the data cable plug, for preventing the data cable plug from moving forward.

5. industrial computer host according to claim 1, which is characterized in that the upper surface of the lower radiator is equipped with more A equally distributed first stud；The bracket includes support plate and the upper frame that is fixed in the support plate；The hard disk It is fixedly connected between the support plate and the upper frame and with the upper frame；The edge of the support plate is equipped with more A bump protection ring, multiple bump protection rings are inserted and fixed correspondingly in multiple first studs.

6. industrial computer host according to claim 5, which is characterized in that the hard disc module further includes described in two Hard disk, two data cable plugs for being plugged in two hard disks respectively and is fixed on the support plate and is located at the upper frame Front side location structure；It is placed between the support plate and the upper frame to two hard disk stacked on top, and solid Surely it is connected to the upper frame；Two data cable plugs fix and the location structure.

7. industrial computer host according to claim 6, which is characterized in that the upper surface of the front side of the support plate is set There is the second stud；The location structure includes two fixed frames arranged up and down and the centre between two fixed frames Supporting spring；The fixed frame of lower section is supported in second stud and by the underlying fixed frame and the intermediate support Lower connector between piece connects solid with the support plate；The intermediate supporting spring is supported in the lower connector and described by being located at Upper connector between intermediate supporting spring and the fixed frame of top connects solid with the lower connector；The fixed frame branch of top It supports and is fixed on the upper connector.

8. industrial computer host according to claim 7, which is characterized in that cloth above and below two data cable plugs It sets, the data cable plug of lower section is fastened between the fixed frame and the intermediate supporting spring of lower section, the number of top It is fastened between the intermediate supporting spring and the fixed frame of top according to line plug.

9. industrial computer host according to claim 5, which is characterized in that the upper frame includes upper plate and is connected to The opposite both sides of the upper plate and the side plate extended downwardly, the upper plate are equipped with the first heat emission hole of perforation, and the side plate is set There is the second heat emission hole of perforation；The support plate is equipped with the third heat emission hole of perforation.

10. industrial computer host according to claim 1, which is characterized in that the multiple I O board include preceding I O board and I O board afterwards, the preceding I O board and the rear I O board are plugged in the motherboard by a connecting plate；The upper surface of the motherboard The first connector equipped with the first socket and for external equipment grafting；The lower surface of the connecting plate is equipped with the first plug and the The upper surface of two plugs, the connecting plate is equipped with third socket；The upper surface of the preceding I O board is equipped with the second socket and for outer Second connector of portion's apparatus connecting；The upper surface of I O board is equipped with the third connector for external equipment grafting, institute after described The lower surface for stating rear I O board is equipped with third plug；Wherein, first plug is plugged in first socket, second plug It is plugged in second socket, the third plug is plugged in the third socket.