CN115149326A

CN115149326A - Be applied to photovoltaic substation inverter's circular connector

Info

Publication number: CN115149326A
Application number: CN202210710838.4A
Authority: CN
Inventors: 张子洋; 包国权; 宋晓龙
Original assignee: New Energy Branch Of North United Power Co ltd
Current assignee: New Energy Branch Of North United Power Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-10-04

Abstract

The invention discloses an aviation plug applied to a photovoltaic transformer substation inverter, which comprises a socket component, wherein the socket component comprises a fixed seat, a connector is embedded in the fixed seat, one end of the fixed seat is provided with a fixed ring, and the connector is positioned in the fixed ring; the plug assembly comprises a connecting piece, wherein an inserting core is embedded in the connecting piece and is connected with the connecting head; the aviation plug and aviation socket quick connection device can realize quick connection of the aviation plug and aviation socket, is simple in connection mode, convenient to operate and low in manufacturing cost, and reduces connection time during frequent plugging and unplugging.

Description

Be applied to photovoltaic substation inverter's circular connector

Technical Field

The invention relates to the field of aviation plugs, in particular to an aviation plug applied to a photovoltaic transformer substation inverter.

Background

Aviation plugs are one type of connector, electromechanical components that connect electrical lines, and proper selection and use of aviation plugs is an important aspect of ensuring circuit reliability. In the prior art, when the aviation plug is connected, the aviation plug male head and the aviation plug female head are arranged outside the equipment and are easy to be knocked or pulled out, the safety is low, and particularly in the photovoltaic field, because the aviation plug of the photovoltaic power station inverter is fixed in a narrow space at the bottom of the inverter, the adopted circular aviation plug is mainly in three modes of threaded connection, bayonet connection and pin tumbler connection. The threaded connection is the most common, and the connector has the advantages of simple processing technology, low manufacturing cost, wide application range and the like, but has low connection speed and is not suitable for occasions requiring frequent plugging and quick connection, so the connector has low efficiency when being used for aviation plug installation and disassembly operation.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.

Therefore, the technical problem to be solved by the invention is that the threaded connection is the most common, and the threaded connection has the advantages of simple processing technology, low manufacturing cost, wide application range and the like, but the connection speed is low, and the threaded connection is not suitable for occasions requiring frequent plugging and quick connection, so the efficiency is low when the aviation plug is mounted and dismounted.

In order to solve the technical problems, the invention provides the following technical scheme: the aviation plug applied to the photovoltaic transformer substation inverter comprises a socket component and a socket component, wherein the socket component comprises a fixed seat, a connector is embedded in the fixed seat, a fixed ring is arranged at one end of the fixed seat, and the connector is positioned in the fixed ring;

the plug assembly comprises a connecting piece, wherein the connecting piece is embedded with a plug core, and the plug core is connected with the connector.

As a preferred solution of the present invention, the aviation plug applied to the photovoltaic substation inverter includes: the connector is provided with a plurality of jack, lock pin quantity and position distribute in the jack unanimously.

As a preferred solution of the present invention, the aviation plug applied to the photovoltaic substation inverter includes: the connecting piece is the cylindricality, and the connecting piece periphery is provided with the ring channel, connecting piece periphery cover is equipped with the connecting cylinder, the one end that the fixing base was kept away from to the connecting cylinder is provided with the spacing ring of embedding in the ring channel.

As a preferable scheme of the aviation plug applied to the photovoltaic substation inverter, the aviation plug comprises: an elastic part is arranged between the limiting ring and one end face of the annular groove close to the fixed seat.

As a preferable scheme of the aviation plug applied to the photovoltaic substation inverter, the aviation plug comprises: the axial length of the connecting cylinder is consistent with that of the fixing ring.

As a preferred solution of the present invention, the aviation plug applied to the photovoltaic substation inverter includes: the outer side of the fixing ring is provided with a spiral boss, the inner wall of the connecting cylinder is provided with a spiral groove, and the spiral boss is consistent with the thread pitch, the width, the height and the rotating direction of the spiral groove.

As a preferable scheme of the aviation plug applied to the photovoltaic substation inverter, the aviation plug comprises: the fixing base is provided with the column socket, the column socket extends to solid fixed ring, the axle center in column socket is located solid fixed ring's surface, the connecting cylinder is close to the one end inboard of fixing base and is provided with the spacing groove, the diameter in spacing groove and column socket is unanimous.

As a preferable scheme of the aviation plug applied to the photovoltaic substation inverter, the aviation plug comprises: when the fixing seat is connected with the connecting piece, the limiting groove is coaxial with the cylindrical groove.

As a preferred solution of the present invention, the aviation plug applied to the photovoltaic substation inverter includes: a limiting pin is arranged in the cylindrical groove, and a first spring is arranged between one end, far away from the connecting piece, of the limiting pin and the end of the cylindrical groove.

As a preferred solution of the present invention, the aviation plug applied to the photovoltaic substation inverter includes: a moving groove is formed in the side wall of the connecting cylinder, a through hole communicated with the moving groove and the limiting groove is formed in the side wall of the connecting cylinder, a moving member is arranged in the moving groove, one end of the moving member is connected with an adjusting pin penetrating through the through hole, and a second spring is arranged between the moving member and the end face of the through hole;

the outer side of the connecting cylinder is provided with a long groove which penetrates through the moving groove, the side surface of the moving part is provided with a bolt, and the bolt penetrates through the long groove;

a rotating ring is sleeved outside the connecting cylinder, an annular groove is formed in the periphery of the connecting cylinder, and a limiting bulge embedded in the annular groove is formed in the inner side of the rotating ring;

the inner side of the rotating ring is provided with a spiral chute, the plug pin is embedded into the spiral chute, and the spiral chute extends along a spiral line.

The invention has the beneficial effects that: the quick connection of the aviation plug and the aviation socket can be realized, the connection mode is simple, the connection time during frequent plugging and unplugging is reduced, the operation is convenient, and the manufacturing cost is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic structural diagram of a socket component in an aviation plug applied to a photovoltaic substation inverter according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an aviation plug assembly applied to a photovoltaic substation inverter according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structural view of a socket component in an aviation plug applied to a photovoltaic substation inverter according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional structural view of an aviation plug assembly applied to a photovoltaic substation inverter, according to an embodiment of the present invention, after a fixing seat is hidden in the aviation plug assembly;

fig. 5 is a schematic structural diagram of a rotating coil in an aviation plug applied to a photovoltaic substation inverter according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an aviation plug assembly and an aviation socket assembly applied to a photovoltaic substation inverter according to an embodiment of the present invention when connected;

fig. 7 is a schematic structural diagram of an aviation plug assembly and an aviation socket assembly applied to a photovoltaic substation inverter according to an embodiment of the present invention when the plug assembly and the socket assembly are separated.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 2, the present embodiment provides an aviation plug applied to a photovoltaic substation inverter, which includes a socket part 100 and a plug assembly 200, wherein the socket part 100 and the plug assembly 200 are connectable.

The socket component 100 comprises a fixed seat 101, the fixed seat 101 is cylindrical, a connector 102 is embedded in the fixed seat 101, it should be noted that the connector 102 is a socket of an aviation plug in the prior art, a fixed ring 103 is arranged at one end of the fixed seat 101, and the connector 102 is located in the fixed ring 103; the outer diameter of the fixing ring 103 is smaller than the diameter of the fixing seat 101, the plug assembly 200 comprises a connecting piece 201, the connecting piece 201 is cylindrical, an inserting core 202 is embedded in the connecting piece 201, and the inserting core 202 is connected with the connecting head 102. It should be noted that the ferrule 202 is a connecting core in the prior art, the connecting head 102 is provided with a plurality of insertion holes 102a, the number and position of the ferrules 202 are distributed uniformly in the insertion holes 102a, in this embodiment, it is a 7-core plug, therefore, there are 7 insertion holes 102a, and when connecting, the ferrules 202 are embedded into the insertion holes 102 a.

Example 2

Referring to fig. 1 to 7, a second embodiment of the present invention is based on the previous embodiment, and is different from the previous embodiment in that:

wherein, connecting piece 201 is the cylindricality, and connecting piece 201 periphery is provided with ring channel 201a, and connecting piece 201 periphery cover is equipped with connecting cylinder 203, and connecting cylinder 203 can slide in connecting piece 201 outside, rotate, and the one end that fixing base 101 was kept away from to connecting cylinder 203 is provided with the spacing ring 203a of embedding in ring channel 201 a. The inner force of the limiting ring 203a is smaller than the inner diameter of the connecting cylinder 203, so that the moving range of the connecting cylinder 203 is limited.

An elastic element 204 is arranged between the limiting ring 203a and one end face of the annular groove 201a close to the fixed seat 101. The elastic member 204 is a compression spring, and is sleeved outside the annular groove 201a, so that the ferrule 202 is partially exposed outside the connecting member 201 in an initial state.

Wherein the axial length of the connecting cylinder 203 is the same as the axial length of the fixing ring 103. When the plug and the socket are connected, the connecting cylinder 203 can be operated to be sleeved outside the fixing ring 103.

Further, the outside of the fixing ring 103 is provided with a spiral boss 103a, the inner wall of the connecting cylinder 203 is provided with a spiral groove 203b, the spiral pitch, the width, the height and the spiral direction of the spiral boss 103a and the spiral groove 203b are consistent, that is, when the connecting cylinder 203 is connected with the fixing ring 103, the spiral boss 103a and the spiral groove 203b can be completely assembled together, the fixing seat 101 and the connecting piece 201 cannot relatively rotate due to the matching of the insertion core 202 and the insertion hole 102a, so that the connecting cylinder 203 is connected with the fixing ring 103 along the movement track of the spiral line until the end of the connecting cylinder 203 contacts with the fixing seat 101, at this time, the spiral boss 103a is completely embedded into the spiral groove 203b, and if the plug assembly 200 is pulled out at this time, the connecting cylinder 203 also moves along the spiral line to withdraw.

Preferably, the fixing base 101 is provided with a cylindrical groove 101a, the cylindrical groove 101a extends to the fixing ring 103, the axis of the cylindrical groove 101a is located on the outer surface of the fixing ring 103, i.e. the cylindrical groove 101a on the fixing ring 103 forms a recessed state, the inner side of one end of the connecting cylinder 203 close to the fixing base 101 is provided with a limiting groove 203c, and the diameter of the limiting groove 203c is consistent with that of the cylindrical groove 101 a. When the limiting groove 203c is aligned with the cylindrical groove 101a on the fixing ring 103, a complete circular groove is formed, i.e. when the fixing base 101 is connected with the connecting member 201, the limiting groove 203c is coaxial with the cylindrical groove 101 a.

Furthermore, a limit pin 104 is arranged in the cylindrical groove 101a, the limit pin 104 can move inside the cylindrical groove 101a, and a first spring 105 is arranged between one end of the limit pin 104, which is far away from the connecting piece 201, and the end of the cylindrical groove 101a, that is, under the action of the first spring 105, the limit pin 104 is abutted against the fixing ring 103 in the cylindrical groove 101 a. Therefore, when the connecting cylinder 203 is sleeved on the fixing ring 103 and screwed, the end of the connecting cylinder 203 first presses the limit pin 104 to be contracted into the fixing seat 101, and when the connection between the connecting cylinder 203 and the fixing ring 103 is completed, that is, the spiral boss 103a is completely submerged into the spiral groove 203b, and the end of the connecting cylinder 203 is in contact with the fixing seat 101, at this time, the limit groove 203c is coaxial with the cylindrical groove 101a, and the limit pin 104 is not limited and moves into the limit groove 203c and the cylindrical groove 101a under the action of the spring, so that the rotation of the connecting cylinder 203 can be limited, and at this time, the connection is completed, and since the connecting cylinder 203 cannot rotate, the socket part 100 and the plug assembly 200 are connected without falling off.

Further, a moving groove 203d is formed in the side wall of the connecting cylinder 203, the moving groove 203d is cylindrical, the axis of the moving groove 203d is parallel to the axis of the connecting cylinder 203, a communicated through hole 203e is formed between the moving groove 203d and the limiting groove 203c, the diameter of the through hole 203e is smaller than that of the moving groove 203d, a moving member 205 is arranged in the moving groove 203d, the moving member 205 is disc-shaped, the diameter of the moving member is larger than that of the through hole 203e, the moving member can move in the axial direction of the moving groove 203d, one end of the moving member 205 is connected with an adjusting pin 206 penetrating through the through hole 203e, and a second spring 207 is arranged between the moving member 205 and the end face of the through hole 203 e; the adjustment pin 206 is retracted within the through hole 203e and the moving groove 203d by the second spring 207.

The outer side of the connecting cylinder 203 is provided with a long groove 203f which penetrates through the moving groove 203d, the side surface of the moving member 205 is provided with a bolt 205a, the bolt 205a penetrates through the long groove 203f, and the position of the moving member 205 can be adjusted by adjusting the bolt 205a, so that the position of the bolt 205a is adjusted.

Further, a rotating ring 208 is sleeved outside the connecting cylinder 203, an annular groove 203g is formed in the periphery of the connecting cylinder 203, and a limiting protrusion 208a embedded in the annular groove 203g is arranged on the inner side of the rotating ring 208; therefore, the rotating ring 208 can only rotate relative to the connecting cylinder 203, the spiral chute 208b is arranged inside the rotating ring 208, the plug pin 205a is embedded in the spiral chute 208b, the spiral chute 208b extends along a spiral line, and the rotating direction of the spiral chute 208b should be satisfied, when the rotating ring 208 is just opposite to the fixing seat 101 and rotates counterclockwise, the spiral chute 208b should drive the plug pin 205a to move towards the direction close to the fixing seat 101, that is, the adjusting pin 206 is driven to push the limiting pin 104 to separate the limiting pin 104 from the limiting groove 203c, so when the spiral chute 208b is operated to rotate counterclockwise, the limiting pin 104 is contracted into the cylindrical groove 101a, the connecting cylinder 203 is not limited to rotate any more, and then the rotating ring 208 is operated to separate the plug assembly 200.

The implementation manner of the embodiment is as follows: when the connection is completed, firstly, the ferrule 202 is aligned with and connected with the jack 102a, after the ferrule 202 is connected with the jack 102a, the spiral groove 203b of the connecting cylinder 203 is aligned with the spiral boss 103a of the fixing ring 103 and is spirally screwed in, in the screwing-in process, the end part of the connecting cylinder 203 firstly extrudes the limit pin 104 to enable the limit pin 104 to shrink into the fixing seat 101, and when the connecting cylinder 203 is connected with the fixing ring 103, namely the spiral boss 103a is completely immersed into the spiral groove 203b, and the end part of the connecting cylinder 203 is contacted with the fixing seat 101, at the moment, the limit groove 203c is coaxial with the cylindrical groove 101a, the limit pin 104 is not limited and moves into the limit groove 203c and the cylindrical groove 101a under the action of a spring, so that the rotation of the connecting cylinder 203 can be limited, at the moment, the connection is completed, and because the connecting cylinder 203 cannot rotate, the socket component 100 and the plug component 200 are connected without falling off; when it is necessary to separate the socket part 100 from the header assembly 200, the spiral inclined groove 208b is operated to rotate counterclockwise, the stopper pin 104 is retracted into the cylindrical groove 101a, the connecting cylinder 203 is no longer restricted from rotating, and the rotating ring 208 is then operated to separate the header assembly 200.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides an aviation plug for photovoltaic transformer substation inverter which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the socket component (100) comprises a fixed seat (101), wherein a connector (102) is embedded in the fixed seat (101), a fixed ring (103) is arranged at one end of the fixed seat (101), and the connector (102) is located in the fixed ring (103);

the plug assembly (200) comprises a connecting piece (201), wherein an inserting core (202) is embedded in the connecting piece (201), and the inserting core (202) is connected with the connecting head (102).

2. The aviation plug applied to the photovoltaic substation inverter according to claim 1, characterized in that: the connector (102) is provided with a plurality of jacks (102 a), and the quantity and the positions of the inserting cores (202) are distributed in the jacks (102 a) uniformly.

3. The aviation plug applied to the photovoltaic substation inverter according to claim 2, characterized in that: connecting piece (201) are the cylindricality, and connecting piece (201) periphery is provided with ring channel (201 a), connecting piece (201) periphery cover is equipped with connecting cylinder (203), the one end that fixing base (101) were kept away from in connecting cylinder (203) is provided with spacing ring (203 a) in embedding ring channel (201 a).

4. The aviation plug applied to the photovoltaic substation inverter according to claim 3, characterized in that: an elastic part (204) is arranged between the limiting ring (203 a) and one end face of the annular groove (201 a) close to the fixed seat (101).

5. The aviation plug applied to a photovoltaic substation inverter according to claim 4, characterized in that: the axial length of the connecting cylinder (203) is consistent with that of the fixing ring (103).

6. The aviation plug applied to the photovoltaic substation inverter according to claim 5, characterized in that: the outer side of the fixing ring (103) is provided with a spiral boss (103 a), the inner wall of the connecting cylinder (203) is provided with a spiral groove (203 b), and the spiral boss (103 a) is consistent with the spiral groove (203 b) in pitch, width, height and turning direction.

7. The aviation plug applied to the photovoltaic substation inverter according to claim 6, characterized in that: fixing base (101) are provided with cylindricality groove (101 a), cylindricality groove (101 a) extend to solid fixed ring (103), the axle center in cylindricality groove (101 a) is located the surface of solid fixed ring (103), connecting cylinder (203) are close to the one end inboard of fixing base (101) and are provided with spacing groove (203 c), spacing groove (203 c) are unanimous with the diameter in cylindricality groove (101 a).

8. The aviation plug applied to the photovoltaic substation inverter according to claim 7, characterized in that: when the fixing seat (101) is connected with the connecting piece (201), the limiting groove (203 c) is coaxial with the cylindrical groove (101 a).

9. The aviation plug applied to the photovoltaic substation inverter according to claim 8, characterized in that: a limiting pin (104) is arranged in the cylindrical groove (101 a), and a first spring (105) is arranged between one end, far away from the connecting piece (201), of the limiting pin (104) and the end of the cylindrical groove (101 a).

10. The aviation plug applied to the photovoltaic substation inverter according to claim 9, characterized in that: a moving groove (203 d) is formed in the side wall of the connecting cylinder (203), a through hole (203 e) communicated with the moving groove (203 d) and the limiting groove (203 c) is formed in the moving groove (203 d), a moving member (205) is arranged in the moving groove (203 d), one end of the moving member (205) is connected with an adjusting pin (206) penetrating through the through hole (203 e), and a second spring (207) is arranged between the moving member (205) and the end face of the through hole (203 e);

a long groove (203 f) which penetrates through the moving groove (203 d) is formed in the outer side of the connecting cylinder (203), a bolt (205 a) is arranged on the side surface of the moving piece (205), and the bolt (205 a) penetrates through the long groove (203 f);

a rotating ring (208) is sleeved outside the connecting cylinder (203), an annular groove (203 g) is formed in the periphery of the connecting cylinder (203), and a limiting bulge (208 a) embedded in the annular groove (203 g) is formed in the inner side of the rotating ring (208);

the inner side of the rotating ring (208) is provided with a spiral inclined groove (208 b), the plug pin (205 a) is embedded into the spiral inclined groove (208 b), and the spiral inclined groove (208 b) extends along a spiral line.