CN111262147A - Transformer, distribution box and distribution station - Google Patents

Transformer, distribution box and distribution station Download PDF

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Publication number
CN111262147A
CN111262147A CN202010037774.7A CN202010037774A CN111262147A CN 111262147 A CN111262147 A CN 111262147A CN 202010037774 A CN202010037774 A CN 202010037774A CN 111262147 A CN111262147 A CN 111262147A
Authority
CN
China
Prior art keywords
low
plug
voltage
transformer
distribution box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010037774.7A
Other languages
Chinese (zh)
Inventor
景伟
袁波
胡可
王静丽
张军民
袁满
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Pinggao Group Intelligent Power Technology Co Ltd
Pingdingshan Power Supply Co of State Grid Henan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Pinggao Group Intelligent Power Technology Co Ltd
Pingdingshan Power Supply Co of State Grid Henan Electric Power Co Ltd
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Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Pinggao Group Co Ltd, Pinggao Group Intelligent Power Technology Co Ltd, Pingdingshan Power Supply Co of State Grid Henan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Publication of CN111262147A publication Critical patent/CN111262147A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • H02B1/48Mounting of devices therein
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/06Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/29Terminals; Tapping arrangements for signal inductances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40Securing contact members in or to a base or case; Insulating of contact members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44Means for preventing access to live contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219Sealing means between coupling parts, e.g. interfacial seal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/66Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H01R24/68Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall mounted on directly pluggable apparatus
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00Connectors or connections adapted for particular applications
    • H01R2201/22Connectors or connections adapted for particular applications for transformers or coils

Abstract

The invention relates to power distribution equipment, in particular to a transformer, a distribution box and a distribution station. The distribution area comprises a transformer and a distribution box, wherein a low-voltage outgoing line splicing structure connected with a low-voltage side is arranged on the side wall of a shell of the transformer, and a low-voltage incoming line splicing structure is arranged on the side wall of a box body of the distribution box; or the bottom wall of the shell of the transformer is provided with a low-voltage outlet plugging structure connected with the low-voltage side, and the top wall of the box body of the distribution box is provided with a low-voltage inlet plugging structure; the transformer and the distribution box are connected through the low-voltage outgoing wire plug-in structure and the low-voltage incoming wire plug-in structure in a sealed plug-in mode. The transformer and the distribution box are electrically connected through the plug connection, the conductor is not exposed, the cable connection is not needed, and the wiring is more standard. The transformer low voltage wiring terminal and the block terminal inlet wire wiring terminal of effectual having solved current distribution station district expose, the mixed and disorderly problem of working a telephone switchboard between the two.

Description

Transformer, distribution box and distribution station
Technical Field
The invention relates to power distribution equipment, in particular to a transformer, a distribution box and a distribution station.
Background
Along with the construction of a power grid in each region, more and more distribution points in a power distribution area for realizing high-voltage and low-voltage transformation are arranged. For example, in the distribution areas disclosed in chinese patent nos. CN207624487U and CN106486907B, two parallel poles are required for the arrangement of the whole distribution area, a beam is fixedly erected between the two poles, and the transformer and the distribution box are fixedly mounted on the upper and lower sides of the beam. The transformer is provided with a low-voltage wiring terminal, the distribution box is provided with an incoming wiring terminal, and the low-voltage outgoing line of the transformer is connected with the low-voltage distribution box through a cable. Although this kind of distribution station district overall arrangement is comparatively compact, and occupation space is less, nevertheless because the inlet wire wiring end of transformer low pressure terminal and block terminal all has the conductor to expose, waterproof, dustproof effect is poor, connects through the cable between the two moreover, also causes one, the mixed and disorderly unnormalized of secondary wiring.
To this kind of problem, also there are some distribution station districts at present to be furnished with wire casing structure, and the low pressure of transformer is qualified for the next round of competitions and the connection cable between the distribution box is wrapped up in the wire casing, and the wire casing also has sealed parcel to the inlet wire wiring end of transformer low pressure terminal and block terminal, plays dustproof, waterproof to a certain extent, but this kind of mode makes the structure in distribution station district complicated relatively, and the installation work volume is great.
Disclosure of Invention
The invention aims to provide a distribution station area, which is used for solving the problems that a transformer low-voltage wiring terminal and a distribution box inlet wire wiring terminal of the existing distribution station area are exposed, and wiring between the transformer low-voltage wiring terminal and the distribution box inlet wire wiring terminal is disordered. Meanwhile, the invention also aims to provide a transformer and a distribution box which form the distribution box area.
The power distribution area adopts the following technical scheme:
a distribution substation including a transformer; and
a distribution box;
a low-voltage outlet plugging structure connected with a low-voltage side is arranged on the side wall of the shell of the transformer, and a low-voltage inlet plugging structure is arranged on the side wall of the box body of the distribution box;
or the bottom wall of the shell of the transformer is provided with a low-voltage outlet plugging structure connected with the low-voltage side, and the top wall of the box body of the distribution box is provided with a low-voltage inlet plugging structure;
the transformer and the distribution box realize the wiring of the low-voltage outgoing wire insertion structure and the low-voltage incoming wire insertion structure through sealed insertion.
The beneficial effects are as follows: the sealed grafting of the low pressure wire inlet grafting structure of distribution station district through transformer housing sidewall's low pressure outlet grafting structure and distribution box housing sidewall realizes the wiring of the two, the low pressure wiring does not need the low pressure terminal, the conductor can not expose, therefore not only waterproof, it is dustproof effectual, can also reduce the emergence of the wrong electric shock condition, owing to need not pass through the cable and connect, can reduce the influence of workman's technical skill height to installation quality, the wiring is more standard, effectual transformer low pressure terminal and the distribution box wire inlet wiring end of having solved current distribution station district expose, the mixed and disorderly problem of wiring between the two. In addition, the transformer and the distribution box are horizontally arranged, the requirement of the bottom of the distribution box on the height from the ground is easily met, and the overall height of the distribution area is not too high.
The sealed grafting of the low pressure of transformer casing diapire in distribution station district and the low pressure inlet wire grafting structure of distribution box roof is passed through to the distribution station district and is realized the wiring of the two, can solve the transformer low pressure terminal and the block terminal of block terminal in current distribution station district equally and expose, the mixed and disorderly problem of wiring between the two. In addition, when the transformer is vertically inserted into the distribution box, the gravity of the transformer can overcome the resistance during insertion more easily due to the fact that the transformer is heavy, and the transformer is easier to insert.
As the further optimization of the power distribution station area, the low-voltage outgoing line inserting structure is a plug, and the low-voltage incoming line inserting structure is a socket.
The beneficial effects are as follows: plug structure and socket structure are comparatively common, adopt plug structure, socket structure to peg graft, and convenient for material collection to easily realize the universalization. When the transformer and the distribution box are arranged up and down, the low-voltage outgoing line inserting structure of the transformer is a plug and is inserted into the low-voltage incoming line inserting structure of the distribution box, the position of the transformer above the transformer is easier to adjust than the position of the distribution box below the transformer, and the low-voltage outgoing line inserting structure is easier to insert into the low-voltage incoming line inserting structure.
As the further optimization to the distribution platform district, the distribution platform district still includes both ends and line pole fixed connection's beam structure, and transformer fixed mounting is in beam structure's upside, block terminal fixed connection is at beam structure downside, the low pressure be qualified for the next round of competitions grafting structure with low pressure inlet wire grafting structure pegs graft in the upper and lower direction.
The beneficial effects are as follows: the transformer and the distribution box are arranged up and down through the beam structure, the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are inserted in the up and down direction, when the transformer and the distribution box are installed, the distribution box can be fixedly connected to the lower side of the beam structure, then the transformer is hoisted to the upper side of the distribution box, and due to the fact that the transformer is heavy, resistance generated when the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are inserted is overcome easily by gravity of the transformer, and insertion.
As the further optimization to the distribution station district, the crossbeam structure is including being used for respectively with two staple bolts that two wire poles held tightly fixed and both ends respectively with two staple bolt fixed connection's crossbeam in pairs, the transformer passes through bolt assembly fixed connection on crossbeam in pairs, the block terminal passes through bolt assembly locking and suspends in midair at crossbeam downside in pairs, the low pressure grafting structure of being qualified for the next round of competitions with the position grafting of low pressure inlet wire grafting structure between crossbeam in pairs.
The beneficial effects are as follows: the transformer is supported by the two paired cross beams and the distribution box is hoisted, so that the transformer and the distribution box can be more stably installed and fixed, and the low-voltage outgoing wire inserting structure and the low-voltage incoming wire inserting structure can be inserted in the space between the paired cross beams and cannot influence the installation and fixation of the transformer and the distribution box.
As the further optimization of the power distribution station area, one of the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure is provided with an inwards concave inserting cavity, the other one of the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure is provided with an outwards convex inserting end, and the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are provided with a concave-convex inserting matching surface when being inserted and matched.
The beneficial effects are as follows: the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are matched with each other, and when the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are inserted, the inserting matching surfaces of the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are not exposed outside, so that a better protection effect is achieved.
The transformer adopts the following technical scheme:
the transformer includes:
a housing;
the transformer inner core is arranged in the shell;
the high-voltage wiring terminal is arranged on the upper part of the top wall or the side wall of the shell;
and the low-voltage outlet wire inserting structure is hermetically arranged on the bottom wall or the side wall of the shell, is connected with the low-voltage side of the transformer inner core and is used for being inserted and connected with the low-voltage inlet wire inserting structure of the distribution box.
The beneficial effects are as follows: the low-voltage outgoing line plug-in structure of the transformer is in plug-in connection with the low-voltage incoming line plug-in structure of the distribution box, wiring of the transformer and the distribution box is achieved, low-voltage wiring does not need a low-voltage wiring terminal, therefore, conductors cannot be exposed, and cable connection is not needed, so that the influence of the skill level of workers on installation quality can be reduced, the problem that the existing transformer low-voltage wiring terminal and the distribution box incoming line wiring terminal of a distribution area are exposed, and wiring is disordered between the transformer low-voltage wiring terminal.
As a further optimization of the transformer, the low-voltage outlet plug structure has an inner concave plug cavity adapted to the outer convex plug cavity of the low-voltage inlet plug structure of the distribution box, or the low-voltage outlet plug structure has an outer convex plug cavity adapted to the inner concave plug cavity of the low-voltage inlet plug structure of the distribution box, and the low-voltage outlet plug structure and the low-voltage inlet plug structure have a concave-convex plug fitting surface when being plugged and matched.
The beneficial effects are as follows: the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are matched with each other, and when the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are inserted, the inserting matching surfaces of the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are not exposed outside, so that a better protection effect is achieved.
As the further optimization of the transformer, the low-voltage outgoing line plugging structure comprises a plug insulator and a plug conductor fixedly installed in the plug insulator, wherein the plug insulator is positioned outside the shell, the plug conductor penetrates into the shell and is connected with the low-voltage side of the transformer inner core, and the plug conductor is in insulation sealing fit with the shell.
The beneficial effects are as follows: the plug insulator is positioned outside the shell and does not occupy the internal space of the transformer shell, so that the size of the transformer does not need to be increased, and the cost is saved.
The distribution box adopts the following technical scheme:
the block terminal includes:
a case in which electrical components are mounted;
and the low-voltage incoming wire inserting structure is hermetically arranged on the top wall or the side wall of the box body, is connected with electrical components in the box body, and is used for being connected with the low-voltage outgoing wire inserting structure of the transformer in an inserting way.
The beneficial effects are as follows: the low pressure inlet wire grafting structure of block terminal and the low pressure outlet wire grafting structure plug-in connection of transformer realize the wiring of transformer and block terminal, the transformer does not need the low pressure terminal, therefore the conductor can not expose, need not pass through the cable connection moreover, can reduce workman's technical ability height to the influence of installation quality, the wiring is more standard, the effectual transformer low pressure terminal and the block terminal inlet wire wiring end of having solved current block terminal district expose, the mixed and disorderly problem of wiring between the two.
As a further optimization of the distribution box, the low-voltage incoming wire plugging structure has an outer convex plugging end adapted to the inner concave plugging cavity of the low-voltage outgoing wire plugging structure of the transformer, the low-voltage incoming wire plugging structure or the inner concave plugging cavity adapted to the outer convex plugging end of the low-voltage outgoing wire plugging structure of the transformer, and the low-voltage incoming wire plugging structure and the low-voltage outgoing wire plugging structure have concave and convex plugging matching surfaces when being plugged and matched.
The beneficial effects are as follows: the low-voltage incoming line inserting structure and the low-voltage outgoing line inserting structure are matched with each other, and when the low-voltage incoming line inserting structure and the low-voltage outgoing line inserting structure are inserted, the inserting matching surfaces of the low-voltage incoming line inserting structure and the low-voltage outgoing line inserting structure are not exposed outside, so that a better protection effect is achieved.
As the further optimization to the block terminal, the low-voltage incoming line plug-in structure comprises a socket insulator and a socket conductor fixedly installed in the socket insulator, the socket insulator is located on the outer side of the box body, the socket conductor penetrates into the box body and is connected with an electrical component of the block terminal, and the socket conductor is in insulation sealing fit with the box body.
The beneficial effects are as follows: the socket insulator is positioned outside the box body, and the internal space of the distribution box body cannot be occupied, so that the size of the distribution box is not increased, and cost saving is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of a power distribution area according to an embodiment 1 of the present invention (the hoop and the high-voltage terminals are not shown);
FIG. 2 is a left side view of the power distribution bay of FIG. 1 (shown without the anchor ear and high voltage post);
FIG. 3 is a top view of the beam structure of FIG. 1 shown in connection with a pole (the left hoop does not show the upper reinforcement plate);
fig. 4 is a bottom view of a low voltage outlet plug structure of the transformer of fig. 1;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 (guide pin not shown);
fig. 6 is a top view of a low voltage inlet plug arrangement of the electrical distribution box of fig. 1;
FIG. 7 is a sectional view taken along line B-B of FIG. 6 (the pilot hole not shown);
in the figure: 1. a transformer; 11. a plug conductor; 12. a plug insulator; 13. a guide pin; 2. a distribution box; 21. a socket conductor; 22. a socket insulator; 23. a guide hole; 3. a beam structure; 31. a cross beam; 32. hooping; 33. mounting holes; 34. a connecting bolt; 35. a connecting section; 36. a connecting plate; 37. a reinforcing plate; 4. a bolt assembly; 5. a wire rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be 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. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
Specific embodiment 1 of the power distribution block of the present invention:
as shown in fig. 1 and 2, the distribution area includes a transformer 1, a distribution box 2 and a beam structure 3, and the improvement of the present invention is to improve the cable connection between the transformer 1 and the distribution box 2 into a plug connection, specifically, in this embodiment, the bottom wall of the casing of the transformer 1 is provided with a low voltage outlet plug structure connected to the low voltage side of the inner core of the transformer, and the top wall of the casing of the distribution box 2 is provided with a low voltage inlet plug structure connected to the electrical components inside the casing. Transformer 1 is located beam structure 3's top, and block terminal 2 passes through bolt assembly 4 hoist and mount in beam structure 3's below. The low-voltage outlet wire inserting structure of the transformer 1 is connected with the low-voltage inlet wire inserting structure of the distribution box 2 in an inserting mode in the up-down direction.
Specifically, as shown in fig. 3, the beam structure 3 includes two pairs of beams 31 and two pairs of hoops 32 located at two ends of the beams 31.
Crossbeam 31 is the channel-section steel that the notch is decurrent, and transformer 1 is located two crossbeams 31 upside, all is equipped with two mounting holes 33 along crossbeam length direction interval on two crossbeams 31, and bolt assembly 4 passes mounting hole 33 and hangs block terminal 2 locking in the downside of two crossbeams 31. The low-voltage outlet plug structure of the transformer 1 and the low-voltage inlet plug structure of the distribution box 2 are connected in a plug manner in a space between the two pairs of cross beams 31.
Two staple bolts 32 are located the crossbeam top, all include about two staple bolt subassemblies, and the middle part of staple bolt subassembly is bent and is isosceles trapezoid, and the both sides that the middle part was bent on the staple bolt subassembly are linkage segment 35, and the both ends of linkage segment 35 are outwards bent. The lower side of staple bolt subassembly is equipped with the connecting plate 36 that is located the staple bolt subassembly outside along the staple bolt direction of bending, and the top is equipped with the reinforcing plate 37 that is located the staple bolt subassembly outside along the staple bolt subassembly direction of bending. The two hoop components, the two connecting plates 36 and the two reinforcing plates 37 jointly form the hoop 32, the two hoop components are oppositely arranged to form a hexagonal hole, the wire pole 5 is hooped in the hole, and the connecting sections 35 of the two hoop components are attached to each other and tightly hold the wire pole 5 through the connecting bolts 34. The anchor ear 32 is connected with the cross beam 31 through the two ends of the connecting plate 36 by bolts, and the two anchor ears 32 fix the two pairs of cross beams 31 on the two pairs of wire rods 5, so that the distribution station area is positioned at a required height from the ground.
Specifically, the transformer 1 includes a transformer housing, a transformer core installed in the transformer housing, a high-voltage wiring terminal, and a low-voltage outlet plug structure.
The high-voltage wiring terminal of the transformer 1 is arranged on the upper part of the side wall of the shell, and the specific wiring mode is the prior art and is not described herein any more. The low-voltage outlet plugging structure is a plug and comprises a plug insulator 12 and a plug conductor 11 fixedly installed in the plug insulator 12. As shown in fig. 4 and 5, the plug insulator 12 is long waist shaped, and one end of the plug insulator is provided with a long waist shaped groove, and the groove forms an inward concave plugging cavity of the low voltage outgoing line plugging structure. To facilitate the insertion, the plug insulator 12 is provided with guide pins 13 on both outer sides in the longitudinal direction. Since the distribution area is a three-phase four-wire system, the number of the plug conductors 11 is four, and the four plug conductors are uniformly distributed on the grooves along the length direction of the plug insulator 12. The plug conductor 11 includes a large diameter section and a small diameter section, the large diameter section is located in the groove, and the small diameter section is embedded in the plug insulator and extends out of the plug insulator 12.
When the low-voltage outlet plug-in structure is installed on the transformer 1, as shown in fig. 1 and 2, the plug insulator 12 is fixed on the outer side of the bottom wall of the transformer housing and is in sealing fit with the transformer housing, and one end of the plug insulator 12 where the groove is located faces away from the transformer housing. The part of the small diameter section of the plug conductor 11 extending out of the plug insulator is inserted into the transformer shell and connected with the low-voltage side of the transformer inner core. The small-diameter section is in insulation sealing fit with the part inserted into the transformer shell, so that the insulation isolation between the plug conductor 11 and the transformer shell is realized, and the leakage of transformer oil is prevented.
Specifically, the block terminal includes the distribution box body, installs electric parts and low pressure inlet wire grafting structure in the box.
The distribution box body comprises a frame and a sealing plate, and the bolt component 4 penetrates through the frame of the distribution box body to lock and hoist the distribution box 2 at the lower sides of the two paired cross beams 31.
The low-voltage incoming line plugging structure is a socket and comprises a socket insulator 22 and a socket conductor 21, as shown in fig. 6 and 7, the socket insulator 22 is long-waist-shaped and is matched with the groove of the plug insulator to be inserted into the groove of the plug insulator, and the socket insulator 22 forms an outer convex plugging end of the low-voltage incoming line plugging structure. In order to facilitate the insertion, the socket insulator 22 is provided with guide holes 23 on both outer sides in the longitudinal direction thereof for fitting with the guide pins 13 of the plug insulator. The socket conductors 21 are likewise provided in four, four being distributed uniformly over the socket insulator 22 along the length of the socket insulator 22. The receptacle conductor 21 includes a receptacle port embedded in the receptacle insulator 22 and a conductive rod connected to the receptacle port. The socket port is cylindrical, the inner cavity of the cylindrical socket port is in interference fit with the large-diameter section of the plug conductor 11, and reliable plug connection is achieved when the plug and the socket are plugged into each other. One end of the conductive rod extends into the socket insulator 22 and is connected to the socket port, and the other end of the conductive rod extends out of the socket insulator 22.
When the low voltage incoming line plugging structure is installed on the distribution box 2, as shown in fig. 1 and 2, the low voltage incoming line plugging structure is fixed on the outer side of the top wall of the distribution box body, and one end of the socket insulator 22, which is embedded with the socket port, faces away from the distribution box body. The portion of the conductive rod extending outside of the receptacle insulator 22 is inserted into the electrical box body and connected to electrical components within the electrical box body. The conductive rod is in insulation sealing fit with the part inserted into the distribution box body, so that insulation isolation and sealing between the socket conductor 21 and the distribution box body are realized.
As for the electrical connection between the socket conductor and the conductor in the distribution box and the electrical connection between the plug conductor and the low voltage side of the transformer, a conventional electrical connection method can be adopted, for example, threaded holes are respectively provided on the end surfaces of the socket conductor and the plug conductor, and the corresponding conductors are crimped on the end surfaces of the conductors by crimping screws. This is conventional technology and the focus of the improvements of the present invention is not here, and will not be described in detail.
When the distribution area is installed, the beam structure 3 is first installed and fixed at the required height of the wire pole 5 through the anchor ear 32. Then through bolt assembly 4 with block terminal 2 locking hoist and mount in crossbeam structure 3's downside, block terminal 2's low pressure inlet wire plug structure is located two pairs of crossbeam 31 between the position. And finally, hoisting the transformer 1 to enable the low-voltage outgoing line plug-in structure of the transformer 1 to be inserted into the low-voltage incoming line plug-in structure of the distribution box 2, wherein the concave plug-in cavity of the low-voltage outgoing line plug-in structure and the plug-in part of the convex plug-in end of the low-voltage incoming line plug-in structure are provided with silica gel sealing rings (not shown in the figure).
Due to the adoption of the vertically-inserted insertion structure, the transformer 1 is electrically connected with the distribution box 2, a low-voltage wiring of the transformer 1 does not need a low-voltage wiring terminal, a conductor cannot be exposed, and the low-voltage insertion conductor is better protected by the insertion cooperation of the concave insertion cavity and the convex insertion end. In addition, because the connection through cables is not needed, and the wiring is also not needed, the influence of the skill level of workers on the installation quality can be reduced. The transformer low voltage wiring terminal and the block terminal inlet wire wiring terminal of effectual having solved current distribution station district expose, the mixed and disorderly problem of working a telephone switchboard between the two.
Specific embodiment 2 of the power distribution block of the present invention:
the difference from example 1 is that: the transformer is characterized in that a low-voltage outlet plugging structure connected with the low-voltage side of the transformer is arranged on the side wall of the shell of the transformer, a low-voltage inlet plugging structure connected with electrical components in the box is arranged on the side wall of the box of the distribution box, the transformer and the distribution box are horizontally arranged on a beam structure, and a certain height requirement is met between a distribution area and the ground, so that the overall height of the distribution area can be reduced due to the horizontal arrangement of the distribution box of the transformer. When the transformer and the distribution box are horizontally arranged, the low-voltage outgoing line inserting structure and the low-voltage incoming line inserting structure are respectively positioned in the front and back directions of the transformer and the distribution box. In other embodiments, the low-voltage outlet plug structure and the low-voltage inlet plug structure may be located on the left and right directions of the transformer and the distribution box.
Specific embodiment 3 of the power distribution block of the present invention:
the difference with embodiment 1 lies in, the crossbeam structure includes two mated crossbeams, is located two pairs of staple bolts at crossbeam both ends, still is equipped with the reinforcing plate between two pairs of crossbeams, and the reinforcing plate interval sets up on the length direction of two crossbeams to the reinforcing plate extends along the width direction of two crossbeams, and two pairs of crossbeams constitute frame rack structure jointly with the reinforcing plate, support transformer and block terminal jointly, and beam rack's intensity is high. In other embodiments, the reinforcing plate may also be arranged between two pairs of cross beams in a crossing manner, two ends of the reinforcing plate are respectively located at the positions close to the ends of the two pairs of cross beams, and the strength of the cross beam structure is high. At the moment, the low-voltage incoming wire plugging structure and the tooth outgoing wire plugging structure are positioned in the gap between the cross beam and the reinforcing plate.
Specific embodiment 4 of the power distribution block of the present invention:
the difference with embodiment 1 lies in that the low-voltage outgoing line plugging structure is not provided with a groove, the size of the low-voltage incoming line plugging structure is consistent with that of the low-voltage outgoing line plugging structure, and plugging surfaces of the low-voltage incoming line plugging structure and the low-voltage outgoing line plugging structure are attached to each other during plugging. Because the groove does not need to be processed, the processing is easier and the processing cost is lower. In other embodiments, the low-voltage outlet plug structure includes a plug conductor and a convex plug end, the low-voltage inlet plug structure includes a socket conductor and a concave plug cavity, and at this time, the convex plug end of the low-voltage outlet plug structure is inserted into the groove of the concave plug cavity of the low-voltage inlet plug structure.
Specific embodiment 5 of the power distribution block of the present invention:
the difference with embodiment 1 lies in that the low-voltage outgoing line inserting structure is located inside the transformer shell, namely, the low-voltage outgoing line inserting structure sinks to the outer surface of the transformer shell, the plug insulator is in insulation sealing fit with the transformer shell, and at the moment, the length of the low-voltage incoming line inserting structure of the distribution box extending out of the box body of the distribution box is longer, so that the low-voltage outgoing line inserting structure is in inserting fit with the low-voltage incoming line inserting structure. In other embodiments, the low-voltage incoming line plugging structure may also be located inside the power distribution box, i.e., sinking to the outer surface of the power distribution housing, and the socket insulator is in insulating sealing fit with the power distribution box, at this time, the length of the low-voltage outgoing line plugging structure of the transformer extending out of the transformer housing is longer, so that the low-voltage outgoing line plugging structure is in plugging fit with the low-voltage incoming line plugging structure.
In the specific embodiment of the transformer of the present invention, the structure of the transformer in the embodiment is the same as that of the transformer in any specific embodiment of the power distribution area, and details are not repeated here.
In the specific embodiment of the distribution box of the present invention, the structure of the distribution box in this embodiment is the same as that in any specific embodiment of the distribution area, and details are not repeated here.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (11)

1. A power distribution panel, comprising:
a transformer; and
a distribution box;
the method is characterized in that:
a low-voltage outlet plugging structure connected with a low-voltage side is arranged on the side wall of the shell of the transformer, and a low-voltage inlet plugging structure is arranged on the side wall of the box body of the distribution box;
or the bottom wall of the shell of the transformer is provided with a low-voltage outlet plugging structure connected with the low-voltage side, and the top wall of the box body of the distribution box is provided with a low-voltage inlet plugging structure;
the transformer and the distribution box realize the wiring of the low-voltage outgoing wire insertion structure and the low-voltage incoming wire insertion structure through sealed insertion.
2. The distribution substation of claim 1, wherein the low voltage outlet plug structure is a plug and the low voltage inlet plug structure is a receptacle.
3. The distribution area according to claim 1 or 2, further comprising a beam structure with two ends fixedly connected with the wire rods, wherein the transformer is fixedly installed on the upper side of the beam structure, the distribution box is fixedly connected to the lower side of the beam structure, and the low-voltage outlet plugging structure and the low-voltage inlet plugging structure are plugged in the up-down direction.
4. The distribution area according to claim 3, wherein said beam structure comprises two hoops for respectively tightly holding and fixing two wire rods and a pair of beams with two ends respectively fixedly connected with the two hoops, the transformer is fixedly connected to the pair of beams by a bolt assembly, the distribution box is suspended on the lower sides of the pair of beams by the bolt assembly, and said low voltage outlet plug structure and said low voltage inlet plug structure are plugged at the position between the pair of beams.
5. The distribution area of claim 1 or 2, wherein one of the low voltage outlet plug structure and the low voltage inlet plug structure has an inwardly concave plug cavity and the other has an outwardly convex plug end, and the low voltage outlet plug structure and the low voltage inlet plug structure have a concave and convex plug mating surface when the plug mating is performed.
6. A transformer, comprising:
a housing;
the transformer inner core is arranged in the shell;
the high-voltage wiring terminal is arranged on the upper part of the top wall or the side wall of the shell;
it is characterized by also comprising:
and the low-voltage outlet wire inserting structure is hermetically arranged on the bottom wall or the side wall of the shell, is connected with the low-voltage side of the transformer inner core and is used for being inserted and connected with the low-voltage inlet wire inserting structure of the distribution box.
7. The transformer of claim 6, wherein the low voltage outlet plug structure has a concave plug cavity adapted to the convex plug end of the low voltage inlet plug structure of the distribution box, or the low voltage outlet plug structure has a convex plug end adapted to the concave plug cavity of the low voltage inlet plug structure of the distribution box, and the low voltage outlet plug structure and the low voltage inlet plug structure have a concave and convex plug mating surface when the plug mating occurs.
8. The transformer of claim 6, wherein the low voltage outlet plug structure comprises a plug insulator and a plug conductor fixedly mounted in the plug insulator, the plug insulator being outside the housing, the plug conductor penetrating inside the housing and being connected to the low voltage side of the transformer core, the plug conductor being in insulating sealing engagement with the housing.
9. An electrical box, comprising:
a case in which electrical components are mounted;
it is characterized by also comprising:
and the low-voltage incoming wire inserting structure is hermetically arranged on the top wall or the side wall of the box body, is connected with electrical components in the box body, and is used for being connected with the low-voltage outgoing wire inserting structure of the transformer in an inserting way.
10. The electrical distribution box of claim 9, wherein the low voltage incoming line plug structure has an outer convex plug end adapted to the inner concave plug end of the low voltage outgoing line plug structure of the transformer, or the low voltage incoming line plug structure has an inner concave plug end adapted to the outer convex plug end of the low voltage outgoing line plug structure of the transformer, and the low voltage incoming line plug structure and the low voltage outgoing line plug structure have a concave and convex plug mating surface when the plug mating occurs.
11. The electrical box of claim 9, wherein the low voltage inlet plug structure includes a socket insulator and a socket conductor fixedly mounted in the socket insulator, the socket insulator being outside the box, the socket conductor penetrating inside the box and being connected to the electrical components of the electrical box, the socket conductor being in insulating sealing engagement with the box.
CN202010037774.7A 2019-12-31 2020-01-14 Transformer, distribution box and distribution station Pending CN111262147A (en)

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CN201911425097 2019-12-31
CN201911425097X 2019-12-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112290415A (en) * 2020-10-20 2021-01-29 任静 Electric shock prevention intelligent power supply system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112290415A (en) * 2020-10-20 2021-01-29 任静 Electric shock prevention intelligent power supply system

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