CN214092364U - Deep well pump - Google Patents

Abstract

The utility model provides a deep-well pump, which comprises a tubular shell; the liquid suction device also comprises a motor arranged in the shell, a liquid suction assembly coaxially arranged on an output shaft of the motor and a water outlet end cover provided with a water outlet, wherein the water outlet is communicated with an inner cavity of the shell, the water outlet end cover covers the end surface of the shell, and the water outlet end cover and a base of the motor form a sealed cavity in a surrounding manner; the motor is electrically connected with the control circuit board. The control circuit board is arranged in the sealed cavity formed by enclosing the motor and the water outlet end cover, the control circuit board is isolated from the inner cavity of the shell, and compared with an external circuit board structure, the structure is more compact, and other electric parts are convenient to install; with the motor setting in the shell, regard as the pivot with the output shaft of motor, retrench pivot and the shaft coupling of the pump body itself, the integration degree is high, and the structure is compacter.

Description

Deep well pump

Technical Field

The utility model relates to a liquid transportation device field, specifically speaking relates to a deep-well pump.

Background

The deep well pump is also called a deep well submersible pump, the deep well pump has high lift, is generally used in a deep well, is long and thin in shape and thin in shell, a motor is in transmission connection with a rotating shaft provided with a liquid suction assembly through a coupler, the liquid suction assembly is an impeller group and other components which rotate to generate suction, the whole body works underwater, and the deep well pump is suitable for extraction operation in a long and thin space. The motor and the pump body are separately arranged and are connected through the coupler, the integration degree is low, the structure is not compact, and the deep-well pump is long, for example, the output shaft of the brushless direct current motor is in transmission connection with the main shaft of the deep-well pump through the coupler in the Chinese patent application No. CN 102434469B. Therefore, a deep well pump with high integration degree and compact structure is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned conventional art's weak point, provide a deep-well pump that integration degree is high, compact structure.

The purpose of the utility model is realized by the following scheme:

a deep well pump comprising a tubular housing; the liquid suction device also comprises a motor arranged in the shell, a liquid suction assembly coaxially arranged on an output shaft of the motor and a water outlet end cover provided with a water outlet, wherein the water outlet is communicated with an inner cavity of the shell, the water outlet end cover covers the end surface of the shell, and the water outlet end cover and a base of the motor form a sealed cavity in a surrounding manner; the motor is electrically connected with the control circuit board.

The utility model discloses an among them embodiment, still including installing in the first sensor of a water end cover, first sensor is located the shell and closes on the delivery port setting, and first sensor is connected through first wire and control circuit board electricity, and the first through-hole that supplies first wire to pass through is seted up to a water end cover, and the outer terminal surface of first through-hole is sealed by first sensor, and first through-hole communicates with each other with the cavity in interior terminal surface department.

The utility model discloses an among them embodiment, still including installing in the second sensor of the outer wall of water outlet end cover, the second sensor passes through the second wire and is connected with the control circuit board electricity, and the water outlet end cover is offered the second through-hole that supplies the second wire to pass through, and the outer terminal surface of second through-hole is sealed by the second sensor, and the second through-hole communicates with each other with the cavity in interior terminal surface department.

The utility model discloses an among them embodiment, the imbibition subassembly closes the apron of stator including coaxial impeller, the stator that is fixed in motor output shaft in proper order and lid.

In one embodiment of the present invention, the chamber is enclosed by the bottom of the water outlet cover and the motor base.

The utility model discloses an among them embodiment, still including the income water end cover of seting up the water inlet, the end cover that entries fits another terminal surface of shell, and the water inlet communicates with each other with the inner chamber of shell.

In one embodiment of the present invention, the water inlet is coaxial with the output shaft of the motor.

Compared with the deep well pump structure in the prior art, the control circuit board is arranged in the sealed cavity surrounded by the motor and the water outlet end cover, so that the control circuit board is isolated from the inner cavity of the shell, the structure is more compact compared with an external circuit board structure, and other electric parts can be conveniently added; with the motor setting in the shell, regard as the pivot with the output shaft of motor, retrench pivot and the shaft coupling of the pump body itself, the integration degree is high, and the structure is compacter.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a deep well pump configuration.

Wherein: 10. a housing; 20. a motor; 30. a water outlet end cover; 301. a water outlet; 302. a first through hole; 303. a second through hole; 40. a control circuit board; 50. a first sensor; 60. a second sensor; 701. an impeller; 702. a guide vane; 703. a cover plate; 80. a water inlet end cover; 801. a water inlet.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, fig. 1 omits the first and second conductive lines. The present embodiment provides a deep well pump comprising a tubular housing 10; the liquid suction device further comprises a motor 20 arranged in the shell 10, a liquid suction assembly coaxially arranged on an output shaft of the motor 20 and a water outlet end cover 30 provided with a water outlet 301, wherein the water outlet 301 is communicated with an inner cavity of the shell 10, the water outlet end cover 30 covers the end surface of the shell 10, and the water outlet end cover 30 and a base of the motor 20 enclose to form a sealed cavity; the device also comprises a control circuit board 40 fixed in the cavity, and the motor 20 is electrically connected with the control circuit board 40. The water outlet structure further comprises a first sensor 50 installed on the water outlet end cover 30, the first sensor 50 is located in the shell 10 and is arranged close to the water outlet 301, the first sensor 50 is electrically connected with the control circuit board 40 through a first lead, the water outlet end cover 30 is provided with a first through hole 302 for the first lead to pass through, the outer end face of the first through hole 302 is sealed by the first sensor 50, and the inner end face of the first through hole 302 is communicated with the cavity. The water outlet cover 30 is provided with a second through hole 303 for the second lead to pass through, the outer end face of the second through hole 303 is sealed by the second sensor 60, and the inner end face of the second through hole 303 is communicated with the cavity. The liquid suction assembly comprises an impeller 701, a guide vane 702 and a cover plate 703 which are sequentially and coaxially fixed on an output shaft of the motor 20, the cavity is formed by enclosing the bottom of a base of the motor 20 and a water outlet end cover 30, the liquid suction assembly also comprises a water inlet end cover 80 provided with a water inlet 801, the water inlet end cover 80 is covered on the other end surface of the shell 10, and the water inlet 801 is communicated with an inner cavity of the shell 10.

When the second through hole 303 is large enough, the outlet end cap 30 may be a hollow structure.

The control unit of the control circuit board 40, such as a single chip microcomputer, can be programmed according to the control function to be realized, and the signal transmission controlled by the sensor and the motor 20 is the prior art, and is not described herein again.

The working principle is as follows: the motor 20 is started, the motor 20 drives the impeller 701 to rotate, so that liquid is sucked from the water inlet 801, guided by the impeller 701, the guide vanes 702 and the cover plate 703, flows to the rear end cover along the outer wall of the motor 20, and finally flows out of the water outlet 301. The first sensor 50 is used for testing the water pressure of the water outlet 301 of the deep well pump so as to monitor the working state of the deep well pump, the first sensor 50 is electrically connected with the control circuit board 40 through a first lead passing through the first through hole 302, and the first sensor 50 can be electrically connected with the control circuit board 40 in a sealing manner as long as the outer end face of the first through hole 302 is sealed, for example, the first sensor 50 is fixed on the outer end face of the first through hole 302 through a sealant; the problem of difficulty in arranging the lead caused by the thinness of the deep-well pump shell 10 is solved; the second sensor 60 is used for testing the water pressure of the environment where the deep-well pump is located and judging the position where the deep-well pump is located, and the sealing principle of the second lead is the same as that of the first lead. Similarly, the electrical connection between the motor 20 and the control circuit board 40 can also be a wire connection. The impeller 701, the guide vane 702 and the cover plate 703 can be combined into a plurality of groups to improve the lift of the deep well pump.

The cavity is enclosed by the water outlet end cover 30 and the bottom of the motor 20 base, and compared with the cavity enclosed by the motor 20 base side and the water outlet end cover 30, the structure of the water outlet end cover 30 is simpler, and the flow resistance generated by the arrangement of the cavity to the fluid in the shell 10 is smaller. The control circuit board 40 is arranged in a sealed cavity surrounded by the motor 20 and the water outlet end cover 30, the control circuit board 40 is isolated from the inner cavity of the shell 10, and compared with an external circuit board structure, the structure is more compact, and other electric components are convenient to install; the motor 20 is arranged in the shell 10, an output shaft of the motor 20 is used as a rotating shaft, the rotating shaft and the coupler of the pump body are simplified, the integration degree is high, and the structure is more compact.

To reduce the probability of turbulence in the fluid entering water inlet 801, water inlet 801 is coaxial with the output shaft of motor 20, reducing the kinetic energy loss of the fluid.

The utility model discloses the improvement is applicable to the thinner pump class product of being not convenient for walk the line of shell.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A deep well pump comprising a tubular housing; the liquid suction device is characterized by further comprising a motor arranged in the shell, a liquid suction assembly coaxially arranged on an output shaft of the motor and a water outlet end cover provided with a water outlet, wherein the water outlet is communicated with an inner cavity of the shell, the water outlet end cover covers the end face of the shell, and the water outlet end cover and a base of the motor form a sealed cavity; the motor is electrically connected with the control circuit board.

2. The deep-well pump of claim 1, further comprising a first sensor mounted to the water outlet end cap, the first sensor being located within the housing and disposed adjacent to the water outlet, the first sensor being electrically connected to the control circuit board via a first wire, the water outlet end cap having a first through hole for the first wire to pass through, an outer end surface of the first through hole being sealed by the first sensor, the first through hole being in communication with the chamber at an inner end surface.

3. The deep-well pump according to claim 1 or 2, further comprising a second sensor mounted on an outer wall surface of the water outlet end cover, wherein the second sensor is electrically connected with the control circuit board through a second wire, the water outlet end cover is provided with a second through hole for the second wire to pass through, an outer end surface of the second through hole is sealed by the second sensor, and the second through hole is communicated with the cavity at an inner end surface.

4. The deep well pump of claim 1 wherein the imbibition assembly comprises an impeller coaxially fixed to the motor output shaft, a guide vane, and a cover plate covering the guide vane in that order.

5. The deep well pump of claim 1, wherein the chamber is enclosed by the water outlet end cap and a bottom of the motor housing.

6. The deep-well pump of claim 1, further comprising a water inlet end cap having a water inlet, wherein the water inlet end cap covers the other end surface of the casing, and the water inlet is communicated with the inner cavity of the casing.

7. The deep-well pump of claim 6, wherein the water inlet is coaxial with an output shaft of the motor.

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