Disc type water pump structure convenient to start

Abstract

The utility model discloses a disc type water pump structure convenient to start, which comprises a water basin, an upper pump cover, a water impeller, a water sump fixing seat, a shaft magnetic connecting group, a magnet ring group, a coil winding and a lower pump shell, a first bulge is arranged in the middle of the water basin, the upper pump cover detachably covers the outer side wall of the first bulge, a first through hole is formed in the middle of the first bulge, and a second through hole is formed in the middle of the lower pump shell. A limiting circular ring is arranged in the middle of the inner wall of the first through hole, the shaft magnetic connection set comprises a fixing shaft, the fixing shaft penetrates through the water sump fixing base and is rotationally connected with the water impeller, the upper end of the water sump fixing base is clamped and fixed to the limiting circular ring, and the magnet ring set comprises an even number of stator iron cores and stator magnetism gathering rings. According to the technical scheme, magnetic force can be effectively dispersed, detection and commutation of an electronic circuit are facilitated, a magnetic circuit is optimized, and starting performance is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of disc type water pumps, in particular to a disc type water pump structure which is easy to start. Background Art

[0002] The operating principle of a disc water pump is usually that the coil is energized to generate a magnetic field, which is combined with the electronic circuit to generate a rotating magnetic field, driving the magnet to rotate, thereby driving the water blades fixed to the magnet to rotate, driving the water in the water chamber to rotate, and through centrifugal force, the water is pumped out of the water chamber.

[0003] However, in the disc water pump structure currently on the market, the middle of the coil is usually hollow or has only one iron block, so the magnetic force is relatively concentrated, resulting in poor starting performance of the disc water pump and affecting work efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a disc-type water pump structure that is easy to start, aiming to solve the technical problem that the existing disc-type water pump structure has poor starting performance and affects the working efficiency.

[0005] To achieve the above-mentioned purpose, the utility model proposes a disc-type water pump structure that is easy to start, including a water basin, an upper pump cover, a water impeller, a water tank fixing seat, a shaft magnetic connection group, a magnet ring group, a coil winding and a lower pump casing. A first protrusion is provided in the middle of the water basin, and the upper pump cover is detachably covered on the outer wall of the first protrusion. A first through hole is provided in the middle of the first protrusion, and a limiting ring is provided in the middle of the inner wall of the first through hole. The shaft magnetic connection group includes a fixed shaft, which is inserted through the water tank fixing seat and is rotatably connected to the water impeller. The upper end of the water tank fixing seat is clamped and fixed to the limiting ring. The magnet ring group includes an even number of stator cores and stator magnetic rings. The top of the stator core is a stepped structure. The iron cores are evenly arranged along the axis of the fixed shaft, and the ends with higher tops are arranged on the outside. The coil windings are evenly arranged around the outer wall of the stator iron core along the axis of the fixed shaft. The axial magnetic connection group also includes an axial magnetic connection plate, and the bottom of the axial magnetic connection plate is in contact with the top of the stator iron core. A fixing groove is convexly provided on the top of the lower pump housing, and a positioning portion is provided on the inner side of the fixing groove. A positioning groove is concavely provided on one side of the stator magnetic ring, and the positioning groove is adapted to the positioning portion. The stator magnetic ring is embedded in the fixing groove. The lower pump housing is provided with a plurality of first screw holes, and the bottom of the water basin is provided with a plurality of first stud holes along the circumferential direction of the first through hole. The first screw hole is fixed to the first stud hole by bolts.

[0006] Optionally, a second through hole is recessed in the center of the top of the upper pump cover, and the center of the upper end portion of the water impeller is located directly below the second through hole.

[0007] Optionally, the upper pump cover is further provided with a water outlet pipe, and the water outlet pipe is adjacent to the second through hole.

[0008] Optionally, it also includes a circuit board and a Hall element, the top of the stator core is symmetrically concave with an angled notch, the circuit board is nested in the angled notch, and the Hall element is arranged on the top of the circuit board and abuts against the bottom of the shaft magnetic connecting plate.

[0009] Optionally, the circuit board is provided with a second screw hole, the lower pump housing is provided with a second screw hole column, and the second screw hole is inserted into the second screw hole for position limiting and fixing.

[0010] Optionally, it further includes at least one gasket, which is sequentially sleeved on the fixed shaft and movably connected to the top of the water tank fixing seat and the lower end of the water impeller.

[0011] Optionally, the shaft magnetic connection group includes a bearing, and the bearing is sleeved on the middle part of the fixed shaft and movably inserted into the water tank fixing seat.

[0012] Optionally, a spiral and non-closed limiting baffle is provided on the top of the water tank fixing seat along the circumferential direction, and the water impeller is connected to the limiting baffle at intervals.

[0013] The technical solution of the present invention has the following beneficial effects: in the technical solution of the present invention, by providing a stator core with a stepped top structure, that is, adding a magnetic conductive sheet to the front end of the stator core, the magnetic force is effectively dispersed, which is convenient for the detection and phase change of the electronic circuit, optimizes the magnetic circuit, and effectively improves the starting performance; by providing at least one gasket, the water impeller is not directly in contact with the top of the water tank fixing seat, effectively avoiding wear, achieving effective sealing and improving efficiency, and facilitating maintenance and improving economic benefits; by providing a bearing shaft, the friction and wear of the fixed shaft are reduced, the rotation accuracy is improved, and the stability and balance are effectively improved; by providing a positioning part and a positioning groove, rapid positioning is achieved and assembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of a disc-type water pump structure that is easy to start according to an embodiment of the utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall structure of a disc-type water pump structure that is easy to start according to an embodiment of the utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the exploded structure of a disc-type water pump structure that is easy to start according to one embodiment of the utility model;

[0018] Figure 4 Another exploded structural diagram of an embodiment of the utility model for facilitating the start of a disc-type water pump structure;

[0019] Figure 5 This is a schematic structural diagram of a stator core of a disc-type water pump structure that is easy to start according to one embodiment of the present invention;

[0020] Figure 6 This is another structural schematic diagram of a stator core of a disc-type water pump structure that is easy to start according to an embodiment of the present invention.

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0025] The utility model provides a disc-type water pump structure which is easy to start.

[0026] like Figures 1 to 6As shown, in one embodiment of the present utility model, the disc-type water pump structure that is easy to start includes a water basin 100, an upper pump cover 200, a water impeller 300, a water tank fixing seat 400, a shaft magnetic connection group, a magnet ring group, a coil winding, a lower pump housing 800, a circuit board 900, a Hall element 901 and a gasket 902. The middle part of the water basin 100 is provided with a first protrusion 110, and the upper pump cover 200 is detachably covered on the outer side wall of the first protrusion 110 for effective fastening. The upper pump cover 200 is also provided with a water outlet pipe 220, which is adjacent to the second through hole 210. The middle part of the first protrusion 110 is provided with a first through hole 1 11. A limiting ring 1111 is provided in the middle of the inner wall of the first through hole 111. The shaft magnetic connection group includes a fixed shaft 510. The fixed shaft 510 is inserted into the water tank fixing seat 400 and is rotatably connected to the water impeller 300. Generally, at least one gasket 902 is provided. In this embodiment, two gaskets 902 are prepared, which are sequentially sleeved on the upper end of the fixed shaft 510, and the gaskets 902 are movably connected to the top of the water tank fixing seat 400 and the lower end of the water impeller 300 respectively. The upper end of the water tank fixing seat 400 is clamped and fixed to the limiting ring 1111. The magnet ring group includes an even number of stator cores 610 and a stator magnetic focusing ring 620, such as Figure 5 and Figure 6 As shown, the top of the stator core 610 is a stepped structure. Figure 5 In the embodiment, the top of the stator core 610 is symmetrically provided with an angled notch 611. Figure 6 It is a conventional stator core 610. In this embodiment, Figure 5 The stator core 610 has two, such as Figure 6There are two stator cores 610. The four stator cores 610 are evenly arranged along the axis of the fixed shaft 510, and the ends with the higher tops are arranged on the outside. The coil windings are evenly arranged along the axis of the fixed shaft 510 around the outer wall of the stator core 610. The shaft magnetic connection group also includes a shaft magnetic connection piece 520. The bottom of the shaft magnetic connection piece 520 is in contact with the top of the stator core 610. The top of the lower pump housing 800 is convexly provided with a fixing groove 810. The inner side of the fixing groove 810 A positioning portion 811 is provided, and a positioning groove 621 is concavely provided on one side of the stator magnetic focusing ring 620. The positioning groove 621 is adapted to the positioning portion 811. The stator magnetic focusing ring 620 is embedded in the fixing groove 810. The lower pump housing 800 is provided with a plurality of first screw holes 820. The bottom of the water basin 100 is provided with a plurality of first stud holes 120 along the circumferential direction of the first through hole 111. The first screw hole 820 is fixed to the first stud hole 120 by a bolt. The circuit board 900 is nested in the angle notch. 611. The Hall element 901 is arranged on the top of the circuit board 900 and abuts against the bottom of the shaft magnetic connecting piece 520. The magnetic sensor based on the Hall effect can detect the magnetic field and its changes, and then detect the position of the stator core 610, and transmit the signal to the circuit board 900, thereby optimizing the magnetic circuit. The circuit board 900 is electrically connected to the coil winding. During operation, the circuit board 900 sends a control instruction to control the coil winding to be energized, thereby generating a magnetic field. The magnetic field interacts with the magnet ring group to generate thrust, causing the shaft magnetic connection group to rotate, thereby driving the fixed shaft 510 to rotate, thereby driving the water impeller 300 to rotate. After reaching the speed, centrifugal force is generated to push the water in the water tank fixing seat 400 out of the water outlet pipe 220. In addition, the circuit board 900 is provided with a second screw hole 910, and the lower pump housing 800 is provided with a second screw hole column 830. The second screw hole column 830 is inserted into the second screw hole 910 for limited fixation. The overall structure is simplified through a simple fixing method.

[0027] Specifically, a second through hole 210 is recessed in the center of the top of the upper pump cover 200, and the center of the upper end of the water impeller 300 is located directly below the second through hole 210, so that the operation of the water impeller 300 can be observed, and the pushing situation in the water tank can be effectively observed.

[0028] Specifically, the shaft magnetic connection group includes a bearing 530 , which is sleeved on the middle part of the fixed shaft 510 and movably inserted into the water tank fixing seat 400 .

[0029] Specifically, a spiral and non-closed limiting baffle 410 is provided on the top of the water tank fixing seat 400 along the circumferential direction, and the water impeller 300 is connected to the limiting baffle 410 at intervals.

[0030] Specifically, the number of magnet ring groups and coil windings can be increased or decreased according to actual conditions, such as the speed and power of the motor, and is not limited here.

[0031] Specifically, the working principle and process of the utility model are as follows: when the coil winding is energized, a magnetic field is generated, which is combined with the stator core and the stator magnetic ring to generate a rotating magnetic field, driving the shaft magnetic connection group to rotate, and then driving the fixed shaft and the water impeller sleeved on the front end of the fixed shaft to rotate. After the speed reaches a certain speed, the water in the water tank fixing seat is pushed out of the water chamber through the water outlet pipe through the centrifugal force.

[0032] The utility model has the following advantages:

[0033] By providing a stator core with a stepped top structure, that is, adding a magnetic conductive sheet to the front end of the stator core, the magnetic force is effectively dispersed, facilitating detection and phase change of the electronic circuit, optimizing the magnetic circuit, and effectively improving starting performance;

[0034] By providing at least one gasket, the water impeller does not directly contact the top of the water tank fixing seat, effectively avoiding wear, achieving effective sealing and improving efficiency, and facilitating maintenance and improving economic benefits;

[0035] By setting the bearing shaft, the friction and wear of the fixed shaft are reduced, the rotation accuracy is improved, and the stability and balance are effectively improved; by setting the positioning part and the positioning groove, rapid positioning is achieved and the assembly efficiency is improved.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A disc-type water pump structure that is easy to start, characterized in that: The pump body comprises a water basin, an upper pump cover, a water impeller, a water tank fixing seat, a shaft magnetic connection group, a magnet ring group, a coil winding and a lower pump casing, a first protrusion is provided in the middle of the water basin, the upper pump cover is detachably covered on the outer wall of the first protrusion, a first through hole is provided in the middle of the first protrusion, a limiting ring is provided in the middle of the inner wall of the first through hole, the shaft magnetic connection group comprises a fixed shaft, the fixed shaft is inserted through the water tank fixing seat and is rotatably connected to the water impeller, the upper end portion of the water tank fixing seat is clamped and fixed to the limiting ring, the magnet ring group comprises an even number of stator cores and stator magnetic rings, the top of the stator core is a stepped structure, the stator core is evenly distributed along the axis of the fixed shaft The stator magnetic ring is arranged in a concave shape and has a plurality of first screw holes, and the bottom of the water basin is provided with a plurality of first stud holes along the circumferential direction of the first through hole. The first screw hole is fixed to the first stud hole by a bolt.

2. The disc-type water pump structure that is easy to start according to claim 1, characterized in that: A second through hole is recessed in the center of the top of the upper pump cover, and the center of the upper end portion of the water impeller is located directly below the second through hole.

3. The disc-type water pump structure that is easy to start according to claim 2, characterized in that: The upper pump cover is further provided with a water outlet pipe, and the water outlet pipe is adjacent to the second through hole.

4. The disc-type water pump structure for easy startup according to claim 1, characterized in that: It also includes a circuit board and a Hall element. The top of the stator core is symmetrically concave with an angled notch, the circuit board is nested in the angled notch, and the Hall element is arranged on the top of the circuit board and abuts against the bottom of the shaft magnetic connecting piece.

5. The disc-type water pump structure for easy startup according to claim 4, characterized in that: The circuit board is provided with a second screw hole, and the lower pump housing is provided with a second screw hole column, and the second screw hole column is inserted into the second screw hole for limiting and fixing.

6. The disc-type water pump structure for easy startup according to claim 1, characterized in that: It also includes at least one gasket, which is sequentially sleeved on the fixed shaft and movably connected to the top of the water tank fixing seat and the lower end of the water impeller.

7. The disc-type water pump structure for easy starting according to claim 1, characterized in that: The shaft magnetic connection group includes a bearing, which is sleeved on the middle part of the fixed shaft and movably inserted into the water tank fixing seat.

8. The disc-type water pump structure for easy starting according to claim 1, characterized in that: A spiral and non-closed limiting baffle is provided on the top of the water tank fixing seat along the circumferential direction, and the water impeller is connected to the limiting baffle.

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