CN211397928U

CN211397928U - Brushless DC water pump

Info

Publication number: CN211397928U
Application number: CN201921863315.3U
Authority: CN
Inventors: 袁红波; 谢忠亮; 李宝红; 陈沛棠; 林煜朗
Original assignee: Dongguan Shenpeng Electronics Co ltd
Current assignee: Guangdong Shenpeng Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-09-01
Anticipated expiration: 2029-10-31

Abstract

The utility model belongs to the technical field of water pumps, in particular to a brushless direct current water pump, which comprises a pump body and a pump cover connected with the pump body; one end of the pump cover is provided with a water inlet, and the other end of the pump cover is provided with a water outlet; be equipped with the drain runner in the pump cover, the inner tube way of drain runner is smooth pipe form setting, and the drain runner includes first water conservancy diversion section and second water conservancy diversion section, and first water conservancy diversion section and second water conservancy diversion section are the fixed angle setting, and fixed angle is less than 10 so that first water conservancy diversion section and second water conservancy diversion section approach to the straight line setting. The utility model sets the liquid guiding flow passage as the inner pipeline in a smooth round tube shape, so that the liquid can flow more smoothly; and through with first water conservancy diversion section with the second water conservancy diversion section approaches to the straight line setting, very big shortening the route of liquid circulation, compared with the ordinary water pump among the prior art, make under the same power condition, operating mode point efficiency improves greatly, and then has improved the work efficiency of water pump.

Description

Brushless DC water pump

Technical Field

The utility model belongs to the technical field of the water pump, especially, relate to a brushless direct current water pump.

Background

The brushless direct current water pump is a machine which drives a brushless motor to rotate by using direct current 4.5V-24V, and the brushless motor rotates to drive an impeller to rotate, so that the liquid pressure is increased to achieve the effect of conveying liquid.

At present, the brushless water pump of direct current is various, like the utility model discloses that the bulletin number is CN207131601U authorized, disclose a brushless water pump of direct current, it includes the casing and sets up the electronic subassembly in the casing, the casing comprises casing and spiro union in the protecgulum at casing top, the inside of casing is equipped with down holds the chamber, the inside of protecgulum is equipped with and holds the chamber, electronic subassembly includes PCB board, iron core group, rotor support, rotor group and bent axle, the medial surface that holds the chamber on is equipped with water inlet, delivery port and manger plate platform. The water inlet is connected with the water outlet through a water pipe, the water outlet is connected with the water inlet through a water pipe, the water inlet is connected with the water outlet through a water pipe, the water pipe is connected with the water inlet through a water pipe, the water pipe is connected with the water outlet through a water pipe, and the water pipe is connected with the.

Although above-mentioned utility model provides a manger plate platform can prevent rivers disorder, promote rivers rotatory, but contact with the manger plate face after rivers form the vortex, the manger plate face has to block the effect and can lead to liquid flow to receive the hindrance, make its runner design unreasonable, and the runner of this runner and other water pumps on the market is the same, the runner inner tube says and is many squarely, make this type of water pump all have the drawback that hinders liquid flow, consequently, lead to operating mode efficiency on the low side, it is big to intake end motor lift loss, and then lead to the problem that brushless direct current water pump work efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless DC water pump aims at solving among the prior art the technical problem that the runner design of brushless DC water pump is unreasonable and consequently leads to water pump work efficiency to hang down.

In order to achieve the above object, an embodiment of the present invention provides a brushless dc water pump, including a pump body and a pump cover connected to the pump body; one end of the pump cover is provided with a water inlet, and the other end of the pump cover is provided with a water outlet; the pump cover is internally provided with a liquid guide flow passage communicated with the water inlet and the water outlet, an inner pipeline of the liquid guide flow passage is in a smooth circular tube shape, the liquid guide flow passage comprises a first flow guide section and a second flow guide section, the first flow guide section and the second flow guide section are arranged at a fixed angle, and the fixed angle is smaller than 10 degrees so that the first flow guide section and the second flow guide section approach to a straight line.

Optionally, the fixed angle is 2 degrees.

Optionally, the pump cover includes a pump head and an upper cover, the pump head is provided with a first flow guide channel, the upper cover is provided with a second flow guide channel, and the upper cover covers the pump head to enable the first flow guide channel and the second flow guide channel to be engaged and combined to form the liquid guide channel; the water inlet sets up in pump head one side, the delivery port set up in the opposite side of pump head.

Optionally, the upper cover is threadably connected to the pump head by a plurality of screws.

Optionally, the pump head with the upper cover is gone up to correspond and is equipped with the mounting groove, install rubber seal in the mounting groove.

Optionally, the pump head is threadably connected to the pump body by a plurality of screws.

Optionally, the pump body includes the rotor installation body, impeller rotor, stator and shell, the side of the rotor installation body with the pump head with the side spiro union of shell, the middle part of the rotor installation body is equipped with first installation cavity, impeller rotor movable mounting in first installation cavity, the stator cover is located on the rotor installation body, the shell is equipped with the second installation cavity, the stator install in the second installation cavity.

Optionally, a rubber O-ring is further embedded in a side edge of the rotor mounting body so that the rotor mounting body is in sealing connection with the pump head.

Optionally, mounting foot pads are further arranged on two sides of the shell.

Optionally, the pump cover is integrally formed.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the brushless DC water pump have one of following technological effect at least: the utility model sets the liquid guiding flow channel communicating the water inlet and the water outlet as the inner pipeline in a smooth round tube shape, so that the liquid can flow more smoothly when passing through the water inlet, the liquid guiding flow channel and the water outlet in sequence; and through with first water conservancy diversion section with the second water conservancy diversion section approaches to the straight line setting, very big route that has shortened the liquid circulation makes under the same power condition lead liquid efficiency under the ordinary water pump among the prior art, makes operating mode point efficiency improve greatly, and then has improved the work efficiency of water pump.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 without inventive labor.

Fig. 1 is a schematic axial sectional view of an internal flow passage of a brushless dc water pump according to an embodiment of the present invention;

fig. 2 is a partial cross-sectional top view of a pump cover internal flow passage of a brushless dc water pump according to an embodiment of the present invention;

fig. 3 is an axial view of a pump head of a brushless dc water pump according to an embodiment of the present invention;

fig. 4 is an axial view of an upper cover of a brushless dc water pump according to an embodiment of the present invention;

fig. 5 is an exploded view of a brushless dc water pump according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the pump body 100, the rotor mounting body 110, the first mounting cavity 111, the rubber O-ring 112, the impeller rotor 120, the stator 130, the housing 140, the second mounting cavity 141, the mounting foot pad 142, the pump cover 200, the water inlet 210, the water outlet 220, the pump head 230, the first flow guide 231, the mounting groove 232, the rubber seal ring 233, the upper cover 240, the second flow guide 241, the liquid guide flow channel 300, the first flow guide section 310, the second flow guide section 320, the fixed angle 400, and the screw 500.

Detailed Description

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

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 5, a brushless dc water pump is provided, which includes a pump body 100 and a pump cover 200 connected to the pump body 100. One end of the pump cover 200 is provided with a water inlet 210, and the other end of the pump cover 200 is provided with a water outlet 220. The pump cover 200 is internally provided with a liquid guiding flow passage 300 for communicating the water inlet 210 with the water outlet 220, the inner pipeline of the liquid guiding flow passage 300 is in a smooth circular tube shape, the liquid guiding flow passage 300 comprises a first flow guiding section 310 and a second flow guiding section 320, the first flow guiding section 310 and the second flow guiding section 320 are arranged at a fixed angle 400, and the fixed angle 400 is smaller than 10 degrees so that the first flow guiding section 310 and the second flow guiding section 320 approach to a straight line.

In the utility model, the liquid guiding channel 300 for communicating the water inlet 210 with the water outlet 220 is set to be a smooth round pipe shape, so that the liquid can flow more smoothly when passing through the water inlet 210, the liquid guiding channel 300 and the water outlet 220 in sequence; and through with first water conservancy diversion section 301 with second water conservancy diversion section 320 approaches to the straight line setting, very big shortening the route of liquid circulation, compared with the ordinary water pump among the prior art, make under the same power condition, improved drain efficiency, make operating mode point efficiency improve greatly, and then improved the work efficiency of water pump.

In another embodiment of the present invention, as shown in fig. 3-4, the fixed angle 400 is 2 degrees. The degree setting of the fixed angle 400 is obtained according to numerous experiments and experimental results of a person skilled in the art, and in consideration of production cost and functional requirements, when the degree setting of the fixed angle 400 is 2 degrees, the first flow guide section 310 and the second flow guide section 320 approach straight lines more, so that a liquid flowing path is shortened to the maximum extent, and the liquid guiding efficiency is improved.

In another embodiment of the present invention, as shown in fig. 1 and 5, the pump cover 200 includes a pump head 230 and an upper cover 240, a first flow guide 231 is disposed on the pump head 230, a second flow guide 241 is disposed on the upper cover 240, and the upper cover 240 covers the pump head 230 to enable the first flow guide 231 and the second flow guide 241 to be engaged with each other and form the liquid guide 300. The water inlet 210 is disposed at one side of the pump head 230, and the water outlet 220 is disposed at the other side of the pump head 230. Specifically, in this embodiment, after an experiment, a person skilled in the art sets the positions of the first flow guiding channel 231 and the second flow guiding channel 241, so that the upper cover 240 covers the pump head 230, and the first flow guiding channel 231 and the second flow guiding channel 241 are just engaged with each other to form the liquid guiding channel 300. In addition, the liquid guide flow channel 300 is divided into two parts, so that the production difficulty is low in actual production, and the production cost can be reduced, so that manufacturers can obtain more benefits.

In another embodiment of the present invention, as shown in fig. 2 and 5, the upper cover 240 is screwed with the pump head 230 by a plurality of screws 500. Specifically, through the mode of spiro union, easy operation can also utilize mechanical equipment to assemble by the manual work, also convenient to detach when needs maintenance simultaneously has high practicality.

In another embodiment of the present invention, as shown in fig. 5, the pump head 230 and the upper cover 240 are correspondingly provided with a mounting groove 232, and a rubber sealing ring 233 is mounted in the mounting groove 232. Specifically, in this embodiment, the rubber sealing ring 233 is provided to ensure the sealing performance of the pump head 230 and the upper cover 240, so that the fluid guide channel 300 is a sealed channel, thereby preventing fluid leakage, improving the fluid guide efficiency, and further improving the working efficiency of the brushless dc water pump.

In another embodiment of the present invention, as shown in fig. 5, the pump head 230 is threadedly coupled to the pump body 100 by a plurality of screws 500.

In another embodiment of the present invention, as shown in fig. 1 and 5, the pump body 100 includes a rotor mounting body 110, an impeller rotor 120, a stator 130 and a housing 140, a side of the rotor mounting body 110 is screwed with a side of the pump head 230 and the housing 140, a first mounting cavity 111 is disposed in the middle of the rotor mounting body 110, the impeller rotor 120 is movably mounted in the first mounting cavity 111, the stator 130 is sleeved on the rotor mounting body 110, the housing 140 is provided with a second mounting cavity 141, and the stator 130 is mounted in the second mounting cavity 141.

Specifically, the operating principle of the brushless dc transfer pump is as follows:

when the brushless dc water pump is powered on, the stator 130 generates a rotating magnetic field, and the rotating magnetic field drives the impeller rotor 120 to rotate at a high speed, so that water enters from the water inlet. During the rotation of the impeller rotor 120, water is introduced into the liquid guide channel 300, passes through the first guide section 310 and the second guide section 320 in sequence, and is pumped out of the water outlet 220.

In another embodiment of the present invention, as shown in fig. 5, a rubber O-ring 112 is further embedded in a side of the rotor mounting body 110 to hermetically connect the rotor mounting body 110 and the pump head 230. The provision of the rubber O-ring 112 improves the sealing.

In another embodiment of the present invention, as shown in fig. 2 and 5, mounting pads 142 are further disposed on both sides of the housing 140. Specifically, by arranging the mounting foot pad 142, the brushless direct current water pump is placed through the mounting foot pad 142 in the using process, and the use is convenient and fast.

In another embodiment of the present invention, the pump cover 200 is integrally formed. Specifically, the pump cap 200 may be fabricated by an additive manufacturing apparatus using 3D printing technology. The additive manufacturing equipment is a 3D printer.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A brushless direct current water pump comprises a pump body and a pump cover connected with the pump body; one end of the pump cover is provided with a water inlet, and the other end of the pump cover is provided with a water outlet; the pump cover is characterized in that a liquid guide flow passage communicated with the water inlet and the water outlet is arranged in the pump cover, an inner pipeline of the liquid guide flow passage is arranged in a smooth circular tube shape, the liquid guide flow passage comprises a first flow guide section and a second flow guide section, the first flow guide section and the second flow guide section are arranged at a fixed angle, and the fixed angle is smaller than 10 degrees so that the first flow guide section and the second flow guide section approach to a straight line.

2. The brushless dc water pump of claim 1, wherein the fixed angle is 2 ° in degrees.

3. The brushless direct current water pump of claim 1, wherein the pump cover comprises a pump head and an upper cover, a first flow guide channel is disposed on the pump head, a second flow guide channel is disposed on the upper cover, and the upper cover covers the pump head to allow the first flow guide channel and the second flow guide channel to engage with each other and form the liquid guide channel; the water inlet sets up in pump head one side, the delivery port set up in the opposite side of pump head.

4. The brushless DC water pump of claim 3, wherein the upper cover is threadably engaged with the pump head by a plurality of screws.

5. The brushless DC water pump according to claim 3, wherein the pump head and the upper cover are correspondingly provided with mounting grooves, and rubber sealing rings are mounted in the mounting grooves.

6. The brushless DC water pump of claim 3, wherein the pump head is threadably coupled to the pump body by a plurality of screws.

7. The brushless direct current water pump according to any one of claims 3 to 6, wherein the pump body includes a rotor mounting body, an impeller rotor, a stator, and a housing, wherein a side of the rotor mounting body is screwed to a side of the pump head and a side of the housing, a first mounting cavity is provided in a middle portion of the rotor mounting body, the impeller rotor is movably mounted in the first mounting cavity, the stator is sleeved on the rotor mounting body, and a second mounting cavity is provided in the housing, and the stator is mounted in the second mounting cavity.

8. The brushless DC water pump according to claim 7, wherein a rubber O-ring is further embedded on a side of the rotor mounting body to hermetically connect the rotor mounting body with the pump head.

9. The brushless DC water pump according to claim 8, wherein mounting pads are further provided on both sides of the housing.

10. The brushless dc water pump according to claim 1 or 2, wherein the pump cover is integrally formed.