CN209016928U - A kind of oil field submersible electric pump frequency-conversion control cabinet - Google Patents

Abstract

The utility model relates to oil field control cabinet technical fields, and disclose a kind of oil field submersible electric pump frequency-conversion control cabinet, including frequency converter terminal, and the connector being fixedly connected in frequency converter terminal by screw, with the output cable for being located at connector bottom end and mutually fixing, screw fixing port is offered in the top of connector, screw fixing port circular in shape, the convenient bottom end with screw on the inside of frequency converter terminal of screw fixing port is connected, the bottom end of connector includes the structure that is fixedly clamped, the structure that is fixedly clamped is formed by positive fixed clamping plate and backwards to fixed clamping plate.The utility model connector is effectively fixed in connecting terminal, utilize the difference of connector positive force and opposite force, part can not be disconnected by making the cable core end at the back side, cable core is fixed with connector, it is not susceptible to separate, the loosening between output cable and frequency converter terminal is reduced, prevents from generating high voltage between connecting terminal and cable, reduces over-voltage fault.

Description

A kind of oil field submersible electric pump frequency-conversion control cabinet

Technical field

The utility model relates to oil field control cabinet technical field, specially a kind of oil field submersible electric pump frequency-conversion control cabinet.

Background technique

Submersible electric pump is one kind of centrifugal multistage pump multiple centrifugal pump, is important mechanical oil recovery equipment.Power supply passes through control cabinet for electric energy It is conveyed to submersible electric pump, submersible motor drives centrifugal pump to be rotated, by rotating so that electric energy is converted to mechanical energy, due to machine The running of tool, the oil liquid in oil well are delivered to ground by oil pipe.

During submersible electric pump oil transportation, frequency-conversion control cabinet can be used, frequency-conversion control cabinet is mainly used for the work of adjustment equipment Working frequency reduces energy loss, can smooth starting equipment, reduce equipment and generate damage of the high current to motor when directly initiating

For frequency-conversion control cabinet in the control process to submersible electric pump, frequency converter terminal 1 passes through screw and connector 31 Front end be fixed, the rear end of connector 31 is clamped fixation to output cable 2 by bending part sheet metal, passes through folder Tight operation can not be accomplished to be completely fixed, and can only play certain restriction effect, can not play good fixed effect, with The factors such as time, gravity and cable outer rubber elasticity, output cable 2 are easy to occur to loosen between bent sheet metal and divide From, cause connecting pin voltage to increase, it is easy to cause frequency converter over-voltage phenomenon, lead to control cabinet overtension, be easy to cause control The failure of cabinet entirety makes submersible electric pump stop working, and is easy to cause the decline of submersible electric pump performance, or even cause internal components Damage, and be delayed submersible electric pump oil recovery progress.

Utility model content

The utility model is by changing the connectivity problem between connecting terminal and cable, to effectively solve above-mentioned background The overpressure problems of the submersible electric pump frequency-conversion control cabinet proposed in technology.

The utility model provides the following technical solutions: a kind of oil field submersible electric pump frequency-conversion control cabinet, including frequency converter connect The connector being fixedly connected in line terminals and frequency converter terminal by screw, and is fixed positioned at connector bottom end and mutually Output cable, offer screw fixing port, the screw fixing port circular in shape, the spiral shell in the top of the connector The convenient bottom end with screw on the inside of frequency converter terminal of nail fixing port is connected, and the bottom end of the connector includes being fixedly clamped Structure, the structure that is fixedly clamped are formed by positive fixed clamping plate and backwards to fixed clamping plate, and the forward direction fixes to clamp Plate is located at the front of connector, and the fixed clamping plate backwards is located at the back side of connector, offers in the middle part of the connector Connection extends mouth, and the connection extends mouth circular in shape, and the connection extends mouth and is connected convenient for connector front with the back side, The inside of the output cable includes cable core, and one end of the cable core extends mouth by the positive connection of connector and extends to company The back side of fitting, and the bending of positive fixed clamping plate is clamped fixation to the positive cable core of connector, and backwards to fixing clamp The bending of tight plate is clamped fixation to the cable core at the connector back side.

Preferably, the connection extend mouth be located on the outside of the positive outside of connector and the back side be fixedly connected to it is convex Seat, and the depth value of two sides projection seat is 3-6mm, so the depth value of connection extension mouth is the depth value and connection of two projection seats The thickness value of part and.

Preferably, the connector is prepared by aerdentalloy.

Preferably, the positive fixed clamping plate is equipped with the clamping equidistantly distributed on the inside of fixed clamping plate Protrusion, and clamp protrusion and be in contact with cable core.

The oil field submersible electric pump frequency-conversion control cabinet have it is following the utility model has the advantages that

The utility model offers connection in the middle part of connector and extends mouth, and the cable core of output cable is extending mouth just by connection Face extends to the back side of connector, and the fixed clamping plate of front and rear sides is clamped fixation, cable to the cable core of front and rear sides respectively Core is effectively contacted with the surface of connector, to give the fixed force of two different directions of cable core, therefore cable core forms U-shaped Shape, can not change the shape of cable core, and cable core can not be disconnected extension mouth, output cable can not occur to be detached from connector with It loosens, and tightening for screw provides the power of a pushing to connector, connector is effectively fixed in connecting terminal, using even The difference of fitting positive force and opposite force makes the cable core end at the back side that can not be disconnected part, and cable core is fixed with connector, no It easily separates, reduces the loosening between output cable and frequency converter terminal, prevent from producing between connecting terminal and cable Raw high voltage, reduces over-voltage fault.

Detailed description of the invention

Fig. 1 is frequency converter terminal connector common in existing frequency-conversion control cabinet；

Fig. 2 is the utility model connecting terminal connector connection schematic diagram；

Fig. 3 is front view under the utility model connector connection status；

Fig. 4 is dorsal view under the utility model connector connection status；

Fig. 5 is the utility model connector connection status underside view；

Fig. 6 is top view under the utility model connector not-connected status；

Fig. 7 is the utility model connector not-connected status underside view.

In figure: 1, frequency converter terminal；2, output cable；21, cable core；31, connector；32, connector；321, it clamps Fixed structure；3211, positive fixed clamping plate；3212, backwards to fixed clamping plate；3213, clamping protrusion；322, projection seat；323, Screw fixing port；324, connection extends mouth.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 2 to Fig. 5, a kind of oil field submersible electric pump frequency-conversion control cabinet, including frequency converter terminal 1 are please referred to, and The connector 32 being fixedly connected in frequency converter terminal 1 by screw, with positioned at 32 bottom end of connector and mutually fixed output Cable 2 offers screw fixing port 323,323 circular in shape of screw fixing port, screw fixing port in the top of connector 32 323 are conveniently connected with the bottom end of 1 inside screw of frequency converter terminal, and the bottom end of connector 32 includes the structure that is fixedly clamped 321, the structure that is fixedly clamped 321 is formed by positive fixed clamping plate 3211 and backwards to fixed clamping plate 3212, positive fixing clamp Tight plate 3211 is located at the front of connector 32, is located at the back side of connector 32 backwards to fixed clamping plate 3212, in connector 32 Portion offers connection and extends mouth 324, and connection extends 324 circular in shape of mouth, connection extend mouth 324 convenient for the front of connector 32 with The back side is connected, and the inside of output cable 2 includes cable core 21, and one end of cable core 21 is extended through the positive connection of connector 32 Mouthfuls 324 extend to the back side of connector 32, and the bending of positive fixed clamping plate 3211 to the positive cable core 21 of connector 32 into Row is fixedly clamped, and is clamped fixation to the cable core 21 at 32 back side of connector backwards to the bending of fixed clamping plate 3212, connects Connection is offered in the middle part of part 32 and extends mouth 324, and the cable core 21 of output cable 2 extends to connection by the front that connection extends mouth 324 The back side of part 32, the fixed clamping plate of front and rear sides are clamped fixation, cable core 21 and company to the cable core 21 of front and rear sides respectively The surface of fitting 32 is effectively contacted, to give the fixed force of 21 two different directions of cable core, therefore cable core 21 forms U-shaped Shape can not change the shape of cable core 21, and cable core 21, which can not be disconnected, extends mouth 324, and output cable 2 can not be with connector 32 Occur to be detached from and loosen, and tightening for screw provides the power of a pushing to connector 32, connector 32 is effectively fixed on and connects In line terminals, using the difference of connector 32 positive force and opposite force, make 21 end of cable core at the back side that can not be disconnected part 32, cable Core 21 is fixed with connector 32, is not susceptible to separate, and reduces the loosening between output cable 2 and frequency converter terminal 1, It prevents from generating high voltage between connecting terminal and cable, reduces over-voltage fault.

Fig. 6 to Fig. 7 is please referred to, it is fixed that connection extension mouth 324 is located at the positive outside of connector 32 and the outside at the back side It is connected with projection seat 322, and the depth value of two sides projection seat 322 is 3-6mm, so the depth value that connection extends mouth 324 is two The depth value of projection seat 322 and the thickness value of connector 32 and, the fixation of frequency converter terminal 1 and connector is needed using arriving Screw, during the installation process, the dynamics of screw-driving cannot control well, easily cause the fracture of back side cable core 21, connection The clamping plate at 32 back side of part loses the clamp operation to cable core 21, and projection seat 322 is arranged by extending 324 two sides of mouth in connection, protects Positive cable core 21 is located at the inside of connector 32, and projection seat 322 prevents from being broken the loosening for causing cable core 21, one end of cable core 21 after fracture Positioned at 32 inside of connector, and post-rift cable core 21 is in L font, can not equally be separated, and consolidating to output cable 2 is improved It is fixed.

Wherein, connector 32 is prepared by aerdentalloy, and connector 31 in the prior art is aluminum metallic material, and Connector 32 is made of aerdentalloy, and since the toughness of aerdentalloy is higher than the toughness of aluminium, fixed clamping plate is not susceptible to break It splits, fixation is clamped to cable core 21 well, and the electric conductivity of aerdentalloy is more preferably more superior than aluminum metal, aerdentalloy Property than aluminum metal property stablize, the climatic environment in oil field is complex, aluminum metal for a long time hold in oilfield environment It is easily corroded, so aerdentalloy prevents the damage of connector 32, guarantees the service life of connector 32.

Wherein, positive fixed clamping plate 3211 is equipped with the folder equidistantly distributed with the inside backwards to fixed clamping plate 3212 Protrusion 3213 is held, and clamps protrusion 3213 and is in contact with cable core 21, the setting of protrusion 3213 increases fixed clamping plate and cable core 21 contact area improves the effect that is fixedly clamped, so that fixed clamping plate is more perfect to the fixation of cable core.

Application method: sequentially passing through the projection seat 322 of connector 32 for the cable core 21 of output cable 2 and connection extend mouth 324, Cable core 21 extends to the back side of connector 32, and the length that cable core 21 is located at 32 back side of connector is not less than the length for the plate that is fixedly clamped Degree presses positive fixed clamping plate 3211 with backwards to fixed clamping plate 3212, is clamped fixation to the cable core 21 of two sides, completes In the front end insertion frequency converter terminal 1 of rear connectors 32, by the screw at tool rotation top, screw is moved down, and passes through spiral shell Fixing port 323 is followed closely, the front end of connector 32 is fixed, completes the installation of connector 32.

Claims (4)

1. a kind of oil field submersible electric pump frequency-conversion control cabinet, including frequency converter terminal (1) and frequency converter terminal (1) connector (32) being fixedly connected on by screw, and is located at connector (32) bottom end and mutually fixed output cable (2), It is characterized by: offering screw fixing port (323) in the top of the connector (32), the screw fixing port (323) is in Circular shape, the convenient bottom end with screw on the inside of frequency converter terminal (1) of the screw fixing port (323) is connected, described The bottom end of connector (32) includes being fixedly clamped structure (321), and the structure that is fixedly clamped (321) is by positive fixed clamping plate (3211) and backwards to fixed clamping plate (3212) it forms, the forward direction fixed clamping plate (3211) is being located at connector (32) just Face, described fixed clamping plate (3212) backwards are located at the back side of connector (32), the company of offering in the middle part of the connector (32) It connects and extends mouth (324), the connection extends mouth (324) circular in shape, and the connection extends mouth (324) and is convenient for connector (32) Front is connected with the back side, and the inside of the output cable (2) includes cable core (21), and one end of the cable core (21) passes through company Positive connect of fitting (32) extends the back side that mouth (324) extend to connector (32), and positive fixed clamping plate (3211) Bending is clamped fixation to connector (32) positive cable core (21), and backwards to the bending of fixed clamping plate (3212) to connection The cable core (21) at part (32) back side is clamped fixation.

2. a kind of oil field submersible electric pump frequency-conversion control cabinet according to claim 1, it is characterised in that: the connection extends Mouth (324), which is located on the outside of the positive outside of connector (32) and the back side, to be fixedly connected to projection seat (322), and two sides projection seat (322) depth value is 3-6mm, so the depth value of connection extension mouth (324) is the depth value and company of two projection seats (322) The thickness value of fitting (32) and.

3. a kind of oil field submersible electric pump frequency-conversion control cabinet according to claim 1, it is characterised in that: the connector It (32) is prepared by aerdentalloy.

4. a kind of oil field submersible electric pump frequency-conversion control cabinet according to claim 1, it is characterised in that: described positive fixed It is raised (3213) that the clamping equidistantly distributed is equipped on the inside of clamping plate (3211) and fixed clamping plate (3212) backwards, and is pressed from both sides Raised (3213) are held to be in contact with cable core (21).