CN217216158U

CN217216158U - Submersible electric pump

Info

Publication number: CN217216158U
Application number: CN202220920310.5U
Authority: CN
Inventors: 陈良; 杜奇; 吴桂陈; 周晨辉; 姜敬; 程梦远
Original assignee: Shendong Coal Branch of China Shenhua Energy Co Ltd; Guoneng Shendong Coal Group Co Ltd
Current assignee: Shendong Coal Branch of China Shenhua Energy Co Ltd; Guoneng Shendong Coal Group Co Ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-08-16
Anticipated expiration: 2032-04-20

Abstract

The utility model provides a submerged motor pump, submerged motor pump includes: the motor comprises a motor main body and a plurality of stator outgoing lines, wherein the motor main body is provided with a motor cavity and the plurality of stator outgoing lines arranged in the motor cavity; the junction box is connected with the motor main body and is provided with a wiring cavity; the cable, one end of the cable locates in the connection cavity and includes a plurality of wires; the two ends of the connecting terminal are respectively a first end and a second end, the first end is positioned in the wiring cavity, the second end is positioned in the motor cavity, and the plurality of stator outgoing lines are connected with the second end in an inserting mode; the plug, a plurality of wires all with plug connection, the plug is through the mode of pegging graft and first end connection. By adopting the scheme, the quick plugging of the plug of the submersible electric pump is realized, and the wiring mode and the dismounting and mounting steps of the submersible electric pump are simplified, so that the wiring efficiency of the submersible electric pump is improved, the condition that the wiring quality cannot be guaranteed due to the small wiring cavity space in the prior art is avoided, the reliability of cable connection is enhanced, and the operation safety of the submersible electric pump is guaranteed.

Description

Submersible electric pump

Technical Field

The utility model relates to a submerged motor pump technical field particularly, relates to a submerged motor pump.

Background

Currently, most submersible electric pumps all have independent wiring chamber, and the mode that the wire in the wiring chamber of current water pump and motor chamber directly links is usually adopted to the wire. When the submerged motor pump is assembled, the wiring cavity and the motor cavity need to be wired respectively, and when the submerged motor pump breaks down and is detected and maintained, the wiring cavity and the motor cavity also need to be disconnected respectively. The installation and the dismantlement process are complicated and fussy, and because wiring chamber space is limited, can't guarantee artifical wiring and pretension quality, easily lead to cable junction insecure, reduce the stability of wiring.

SUMMERY OF THE UTILITY MODEL

The utility model provides a submersible electric pump to solve the problem of the submersible electric pump wiring inefficiency among the prior art.

In order to solve the above problem, the utility model provides a submerged motor pump, submerged motor pump includes: the motor comprises a motor main body and a plurality of stator outgoing lines, wherein the motor main body is provided with a motor cavity and the plurality of stator outgoing lines arranged in the motor cavity; the junction box is connected with the motor main body and is provided with a wiring cavity; the cable, one end of the cable locates in the connection cavity and includes a plurality of wires; the two ends of the connecting terminal are respectively a first end and a second end, the first end is positioned in the wiring cavity, the second end is positioned in the motor cavity, and the plurality of stator outgoing lines are connected with the second end in an inserting mode; the plug, a plurality of wires all with plug connection, the plug is through the mode of pegging graft and first end connection.

Furthermore, the plug comprises a body and a plurality of first contact pins arranged on the body, the first contact pins are connected with the leads in a one-to-one correspondence mode, the first end is provided with a plurality of first jacks, and each first contact pin is correspondingly inserted into one first jack.

Furthermore, the end face of the first end is provided with a preset circle, one first jack is positioned in the center of the preset circle, and the rest first jacks are distributed on the preset circle at equal intervals; at least one of the first jacks is a spare jack.

Further, each first pin has a separate coding and each first socket has a separate coding, wherein first pins having the same coding mate with first sockets.

Furthermore, first contact pin includes contact pin main part and insulation support, and insulation support overlaps on the contact pin main part and is located this internally, and the contact pin main part is the tubular structure, and the tip of wire penetrates in the contact pin main part.

Further, the contact pin main part is including root section, elastic segment and the head section that connects gradually, the tip fixed connection of root section and wire, and the lateral wall of elastic segment is hollow out construction, and the elastic segment has elasticity in radial, and the radial dimension of elastic segment is greater than the internal diameter of first jack, and the radial dimension of head section is less than the internal diameter of first jack.

Furthermore, the submersible electric pump also comprises a plurality of second contact pins, the second contact pins are connected with the stator outgoing lines in a one-to-one correspondence mode, the second end is provided with a plurality of second jacks, and each second contact pin is correspondingly inserted into one second jack.

Further, binding post includes the wiring cylinder and sets up the spacing ring on the wiring cylinder, the external screw thread of wiring cylinder and the female connection of terminal box, spacing ring and terminal box butt.

Further, the terminal block includes a housing and an end plate connected to each other, a region between the housing and the end plate forming a terminal chamber, the housing being connected to the case of the motor main body, and the terminal block being mounted on the end plate.

Furthermore, the plug comprises a body and a plurality of first pins arranged in the body, the first pins are connected with the wires in a one-to-one correspondence mode, the first end is provided with a slot, a plurality of second pins are arranged in the slot, the body is inserted into the slot, and the first pins and the second pins are connected in a one-to-one correspondence mode.

Use the technical scheme of the utility model, a submerged motor pump is provided, submerged motor pump includes: the motor comprises a motor main body and a plurality of stator outgoing lines, wherein the motor main body is provided with a motor cavity and the plurality of stator outgoing lines arranged in the motor cavity; the junction box is connected with the motor main body and is provided with a wiring cavity; the cable, one end of the cable locates in the connection cavity and includes a plurality of wires; the two ends of the connecting terminal are respectively a first end and a second end, the first end is positioned in the wiring cavity, the second end is positioned in the motor cavity, and the plurality of stator outgoing lines are connected with the second end in an inserting mode; the plug, a plurality of wires all with plug connection, the plug is through the mode of pegging graft and first end connection. By adopting the scheme, before the submersible electric pump is connected, the plug can be connected with the cable in advance, after the cable is arranged in the wiring cavity, the plug is only required to be inserted into the wiring terminal, the plurality of leads are correspondingly connected with the plurality of stator lead-out wires at the second end of the wiring terminal through the insertion of the first end of the plug and the first end of the wiring terminal, compared with the connection mode that the stator lead-out wires and the leads are correspondingly connected one by one in the prior art, the scheme realizes the simultaneous corresponding connection of the plurality of stator lead-out wires and the plurality of leads through the connection mode of one-time insertion, avoids the complex and repeated connection process of the plurality of groups of stator lead-out wires and the leads, realizes the quick insertion and extraction of the plug of the submersible electric pump, simplifies the wiring mode and the disassembly and assembly steps of the submersible electric pump, thereby improving the wiring efficiency of the submersible electric pump, and simultaneously, the arrangement is realized, and the condition that the wiring quality can not be ensured because the space of the wiring cavity is small in the prior art is avoided, the reliability of cable connection is enhanced, and the running safety of the submersible electric pump is guaranteed.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a submersible pump provided by an embodiment of the present invention;

FIG. 2 shows a schematic connection diagram of the plug, terminal, stator lead-out, cable of FIG. 1;

figure 3 shows a top view of the connection terminals in the submersible electric pump of figure 1;

fig. 4 shows a schematic view of the connection of the lead wires and the pin body in the submersible electric pump of fig. 1.

Wherein the figures include the following reference numerals:

10. a motor main body; 11. a motor cavity; 12. a stator lead-out wire; 20. a junction box; 21. a wiring cavity; 22. a housing; 23. an end plate; 30. a cable; 31. a wire; 40. a wiring terminal; 41. a first end; 42. a second end; 43. a first jack; 44. a second jack; 45. a wiring column; 46. a limiting ring; 50. a plug; 51. a body; 52. a first pin; 521. a pin body; 5211. a root section; 5212. an elastic section; 5213. a head section; 522. an insulating sleeve; 60. and a second pin.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a submersible electric pump, including: a motor main body 10, the motor main body 10 having a motor cavity 11 and a plurality of stator lead wires 12 disposed in the motor cavity 11; a terminal box 20 connected with the motor main body 10, the terminal box 20 having a wiring cavity 21; a cable 30, one end of the cable 30 being located in the wiring cavity 21 and including a plurality of conductive wires 31; the stator lead wire comprises a wiring terminal 40, wherein a first end 41 and a second end 42 are respectively arranged at two ends of the wiring terminal 40, the first end 41 is positioned in a wiring cavity 21, the second end 42 is positioned in a motor cavity 11, and a plurality of stator lead wires 12 are connected with the second end 42 in an inserting mode; the plug 50 and the plurality of wires 31 are connected to the plug 50, and the plug 50 is connected to the first end 41 by plugging.

In this embodiment, before the submersible electric pump is connected, the plug 50 can be connected with the cable 30 in advance, after the cable 30 is installed in the wiring cavity 21, the plug 50 is only required to be plugged into the wiring terminal 40, the plurality of wires 31 are correspondingly connected with the plurality of stator outgoing lines 12 at the second end 42 of the wiring terminal 40 through the plugging of the plug 50 and the first end 41 of the wiring terminal 40, compared with the connection mode of the stator outgoing lines and the wires in one-to-one corresponding connection in the prior art, the scheme realizes the simultaneous corresponding connection of the plurality of stator outgoing lines 12 and the plurality of wires 31 through the connection mode of one-time plugging, avoids the complicated and repeated connection process of the plurality of groups of stator outgoing lines and the wires, realizes the quick plugging and unplugging of the submersible electric pump plug 50, simplifies the connection mode and the disassembly and assembly steps of the submersible electric pump, thereby improving the wiring efficiency of the submersible electric pump, and is also set as such, the condition that the wiring quality cannot be guaranteed due to the small space of the wiring cavity in the prior art is avoided, the reliability of the connection of the cable 30 is enhanced, and the running safety of the submersible electric pump is guaranteed.

As shown in fig. 2, the plug 50 includes a body 51 and a plurality of first pins 52 disposed on the body 51, the plurality of first pins 52 are connected to the plurality of wires 31 in a one-to-one correspondence, the first end 41 has a plurality of first sockets 43, and each first pin 52 is inserted into one first socket 43 correspondingly. By means of the arrangement, the connection between the first contact pins 52 and the first jacks 43 is achieved in an inserting mode, the connection process between the plug 50 and the wiring terminal 40 is simplified, meanwhile, the connection between the wires 31 and the wiring terminal 40 is achieved, and the wiring efficiency of the submersible electric pump is improved.

As shown in fig. 2 and 3, the end surface of the first end 41 has a preset circle, one first insertion hole 43 is located at the center of the preset circle, and the other first insertion holes 43 are distributed on the preset circle at equal intervals; at least one first receptacle 43 of the plurality of first receptacles 43 is a spare receptacle. With the arrangement, the distance between the first jacks 43 is balanced, the structural strength of the first end 41 is guaranteed, the wiring type of the first jacks 43 is improved, and the applicability of the wiring terminal 40 is improved.

Specifically, each first pin 52 has a separate coding and each first receptacle 43 has a separate coding, wherein first pins 52 having the same coding mate with first receptacles 43. By the arrangement, the condition that wires 31 or stator outgoing lines 12 are placed in a mess in the prior art and are prone to misconnection is avoided, the wiring accuracy is guaranteed, and the reliability and the stability of the wiring of the submersible electric pump are guaranteed.

As shown in fig. 4, the first pin 52 includes a pin main body 521 and an insulating sleeve 522, the insulating sleeve 522 is disposed on the pin main body 521 and located in the body 51, the pin main body 521 is a tubular structure, and an end of the wire 31 penetrates into the pin main body 521. In this embodiment, the insulating sleeve 522 is provided to insulate and shield the connection between the wires 31 and the pin body 521, so as to ensure that the adjacent wires 31 are isolated from each other, and further ensure the reliability and stability of the electrical connection between the cable 30 and the pin body 521.

Specifically, the pin body 521 includes a root section 5211, an elastic section 5212 and a head section 5213 which are connected in sequence, the root section 5211 is fixedly connected with the end of the lead 31, the side wall of the elastic section 5212 is a hollow structure, the elastic section 5212 has elasticity in the radial direction, the radial dimension of the elastic section 5212 is greater than the inner diameter of the first insertion hole 43, and the radial dimension of the head section 5213 is less than the inner diameter of the first insertion hole 43.

In this embodiment, stability and reliability when the pin body 521 is inserted into the first insertion hole 43 can be ensured by providing the elastic section 5212, specifically, the insulating sleeve 522 is sleeved on the outer peripheral surface of the root section 5211, when the pin body 521 is inserted into the first insertion hole 43, because the radial dimension of the head section 5213 is smaller than the inner diameter of the first insertion hole 43, the head section 5213 directly enters the first insertion hole 43, because the radial dimension of the elastic section 5212 is larger than the inner diameter of the first insertion hole 43 and has radial elasticity, the elastic section 5212 can radially contract in the process of inserting the elastic section 5212 into the first insertion hole 43, the elastic section 5212 can be pressed against the inner wall of the first insertion hole 43, the pin body 521 is prevented from slipping out of the first insertion hole 43, and reliability of connection is ensured. Further, the root section 5211 has a plug hole, the wire 31 is inserted into the plug hole, optionally, the plug hole or one side of the wire 31 inserted into the plug hole has a pressing section, the pressing section can radially elastically contract and is located between the inner wall of the plug hole and the outer side wall of the wire 31, and the inner wall of the wire 31 and the inner wall of the plug hole are pressed by elasticity, so that the wire 31 and the plug hole are pressed, and the reliability of connection is ensured.

Alternatively, the size of the pin body 521 may be selected to have different specifications according to the load and the current to be passed.

As shown in fig. 2, the submersible electric pump further includes a plurality of second pins 60, the plurality of second pins 60 are connected with the plurality of stator lead-out wires 12 in a one-to-one correspondence, the second end 42 has a plurality of second insertion holes 44, and each second pin 60 is inserted into one second insertion hole 44. By means of the arrangement, the connection of the multiple groups of second contact pins 60 and the second jacks 44 is achieved in a plugging mode, the connection process of the stator outgoing lines 12 and the connection terminals 40 is simplified, the connection of the multiple stator outgoing lines 12 and the connection terminals 40 is achieved simultaneously, and the wiring efficiency of the submersible electric pump is improved.

Specifically, the connection terminal 40 includes a connection cylinder 45 and a limit ring 46 disposed on the connection cylinder 45, wherein the external thread of the connection cylinder 45 is connected with the internal thread of the connection box 20, and the limit ring 46 abuts against the connection box 20.

In this embodiment, the connection post 45 is connected to the terminal box 20 through a threaded connection, so as to ensure the connection reliability between the connection terminal 40 and the terminal box 20, and the limit ring 46 provided on the connection post 45 abuts against the terminal box 20, so as to facilitate the determination of the installation position of the connection terminal 40, prevent the inaccurate installation condition of the connection terminal 40, and ensure the installation reliability and stability of the connection terminal 40.

As shown in fig. 1, the terminal block 20 includes a cover 22 and an end plate 23 connected to each other, an area between the cover 22 and the end plate 23 forms a terminal chamber 21, the cover 22 is connected to the housing of the motor body 10, and a terminal 40 is mounted on the end plate 23. With this arrangement, the connection between the terminal box 20 and the motor main body 10 is ensured, and the reliability of the submersible electric pump is ensured, specifically, the end plate 23 is provided with an internal threaded hole, and the terminal post 45 of the terminal block 40 is in threaded connection with the internal threaded hole of the end plate 23.

Specifically, the plug 50 includes a body 51 and a plurality of first pins disposed in the body 51, the plurality of first pins are connected to the plurality of wires 31 in a one-to-one correspondence, the first end 41 has a slot, the slot has a plurality of second pins, the body 51 is inserted into the slot, and the plurality of first pins and the plurality of second pins are connected in a one-to-one correspondence. By the arrangement, the reliability and stability of the connection between the plug 50 and the wiring terminal 40 are further ensured, and the stability of the submersible electric pump is improved.

The submersible electric pump of the scheme has the following advantages:

1. the scheme changes the original on-site wiring mode of the submersible electric pump into a quick-plug connection mode, simplifies the wiring process of the submersible electric pump and improves the efficiency of assembling and wiring the water pump;

2. by adopting the wiring terminal 40 and the plug 50, the wiring reliability can be effectively improved, and the quality stability of the wiring of the submersible electric pump is improved;

3. when the plug 50 of the cable 30 in the wiring cavity 21 adopts a plug-in structure, and the volume is small, when the cable 30 needs to be replaced completely, the connected cable 30 and the plug 50 or the cable 30 are directly taken out from the outlet of the wiring cavity 21; when the motor main body 10 is adjusted to rotate, the phase line can be conveniently switched;

4. the plug 50, the cable 30 and the like can be pre-wired, the plug 50 and the cable 30 are connected with the conducting wire 31, and the quick plugging action is directly carried out when the submersible electric pump is assembled;

5. the first jack 43 and the second jack 44 of the wiring terminal 40 respectively adopt access ports with different sizes, so that a worker can quickly select the jack positions as required, the misconnection of a circuit is avoided, and the running safety of the submersible electric pump is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric submersible pump, characterized in that it comprises:

a motor main body (10), the motor main body (10) having a motor cavity (11) and a plurality of stator lead-out wires (12) disposed within the motor cavity (11);

a terminal box (20) connected with the motor main body (10), wherein the terminal box (20) is provided with a wiring cavity (21);

a cable (30), one end of the cable (30) being located within the wiring cavity (21) and comprising a plurality of conductive wires (31);

the stator comprises a wiring terminal (40), wherein a first end (41) and a second end (42) are respectively arranged at two ends of the wiring terminal (40), the first end (41) is positioned in the wiring cavity (21), the second end (42) is positioned in the motor cavity (11), and the plurality of stator lead-out wires (12) are connected with the second end (42) in an inserting manner;

the plug (50) is connected with the plurality of wires (31), and the plug (50) is connected with the first end (41) in a plugging mode.

2. The submersible electric pump according to claim 1, characterized in that said plug (50) comprises a body (51) and a plurality of first pins (52) arranged on said body (51), said plurality of first pins (52) being connected to said plurality of wires (31) in a one-to-one correspondence, said first end (41) having a plurality of first sockets (43), each of said first pins (52) being inserted in a corresponding one of said first sockets (43).

3. The submersible electric pump according to claim 2, characterized in that the end face of said first end (41) has a preset circle, one of said first insertion holes (43) being located in the center of said preset circle, the remaining first insertion holes (43) being equally spaced on said preset circle; at least one of the first jacks (43) of the plurality of first jacks (43) is a spare jack.

4. Submersible electric pump according to claim 2, characterized in that each of said first pins (52) has a separate coding and each of said first sockets (43) has a separate coding, wherein said first pins (52) and said first sockets (43) having the same coding cooperate.

5. The submersible electric pump according to claim 2, characterized in that said first pin (52) comprises a pin main body (521) and an insulating sleeve (522), said insulating sleeve (522) being fitted over said pin main body (521) and being located inside said body (51), said pin main body (521) being of tubular configuration, the end of said conductor (31) penetrating inside said pin main body (521).

6. The submersible electric pump according to claim 5, characterized in that the insertion pin body (521) comprises a root section (5211), an elastic section (5212) and a head section (5213) which are connected in sequence, the root section (5211) is fixedly connected with the end of the lead (31), the side wall of the elastic section (5212) is of a hollowed structure, the elastic section (5212) is elastic in the radial direction, the radial dimension of the elastic section (5212) is greater than the inner diameter of the first insertion hole (43), and the radial dimension of the head section (5213) is smaller than the inner diameter of the first insertion hole (43).

7. The submersible electric pump according to claim 1, further comprising a plurality of second pins (60), wherein a plurality of said second pins (60) and a plurality of said stator lead-out wires (12) are connected in a one-to-one correspondence, wherein said second end (42) has a plurality of second sockets (44), and wherein each of said second pins (60) is inserted into one of said second sockets (44).

8. The submersible electric pump according to claim 1, characterized in that the connection terminal (40) comprises a connection cylinder (45) and a limit ring (46) arranged on the connection cylinder (45), the external thread of the connection cylinder (45) being connected with the internal thread of the terminal box (20), the limit ring (46) abutting against the terminal box (20).

9. Submersible electric pump according to claim 1, characterized in that the terminal box (20) comprises a casing (22) and an end plate (23) connected to each other, the area between the casing (22) and the end plate (23) forming the wiring chamber (21), the casing (22) being connected to the housing of the motor body (10), the terminal block (40) being mounted on the end plate (23).

10. The submersible electric pump according to claim 1, characterized in that said plug (50) comprises a body (51) and a plurality of first pins arranged in said body (51), said plurality of first pins being connected to a plurality of said leads (31) in a one-to-one correspondence, said first end (41) having a socket with a plurality of second pins, said body (51) being inserted in said socket and said plurality of first pins being connected to a plurality of said second pins in a one-to-one correspondence.