CN218920093U - Spherical pump and motor assembly - Google Patents
Spherical pump and motor assembly Download PDFInfo
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- CN218920093U CN218920093U CN202222892695.1U CN202222892695U CN218920093U CN 218920093 U CN218920093 U CN 218920093U CN 202222892695 U CN202222892695 U CN 202222892695U CN 218920093 U CN218920093 U CN 218920093U
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Abstract
The patent discloses a spherical pump and motor assembly, which comprises a spherical pump (1) and an outer rotor motor (2), wherein a motor outer rotor (23) of the outer rotor motor (2) is provided with a barrel-shaped outer rotor body (231) with an upward opening, a magnetic ring (233) is arranged on the inner circumference of the outer rotor body (231), and a rotor central shaft (232) is arranged in the center of the bottom surface of the barrel of the outer rotor body (231); a coil winding (241) is arranged on the periphery of a stator bracket (242) with a central shaft hole, and a connecting part (243) is arranged at the upper end of the stator bracket (242); the cylinder body seat (121) is fixedly connected with the connecting part (243), and the lower end surface of the turntable shaft (151) is meshed with the upper end surface of the rotor central shaft (232) to transmit torque; the advantages are that: the volume is small, and the advantage of microminiaturization of the spherical pump (1) is fully exerted; the outer rotor motor (2) is connected with the spherical pump (1) and is convenient to assemble.
Description
Technical Field
The patent relates to a liquid pump, in particular to a spherical pump and motor combination.
Background
The spherical pump technology is a new principle of variable capacity power mechanism of the new utility model in recent years, there are several Chinese patents, its advantage is that the pump part quantity is small, seal is reliable, there is no liquid inlet, drain valve, easy to design of ultra-microminiaturization, can realize the high-speed operation, the noise is low, various uses of the spherical pump are under continuous research and development at present. For example, the Chinese patent with the patent number of ZL202220285836.0 and the patent name of miniature spherical pump has the most remarkable characteristics of small volume and light weight, and can be applied to occasions with strict limits on the volume of pumps such as tooth cleaners, electric toothbrushes with flushing functions, portable fire-fighting equipment and the like, and compared with other pumps, the spherical pump has greatly reduced volume, but because the spherical pump is a novel water pump, a motor matched with the spherical pump is not available at present, the volume of the spherical pump is often small, but the motor matched with the spherical pump has huge volume, so that the advantage of the spherical pump with small volume can not be fully exerted, and the whole miniaturization requirements of the portable equipment on the pump and the motor can not be met.
Disclosure of Invention
The purpose of this patent is to design a spherical pump and motor assembly, utilize the latest utility model and put into use the spherical pump technique, carry out integrated design with its motor that uses to it is the volume minimization behind spherical pump and the motor combination.
The technical scheme of this patent is: the rotary table shaft of the spherical pump takes a cylinder body seat central hole at the lower part of the spherical pump as a rotary support, a motor outer rotor of the outer rotor motor is provided with a barrel-shaped outer rotor body with an upward opening, a magnetic ring is arranged on the inner circumference of the outer rotor body, and a rotor central shaft is arranged at the center of the bottom surface of the barrel of the outer rotor body; the outer rotor motor comprises a motor stator, a rotor central shaft, a rotor support, a magnetic ring and a stator support, wherein the periphery of the motor stator of the outer rotor motor is provided with a plurality of groups of coil windings formed by coils and magnetic steel, the rotor central shaft is arranged in the central shaft hole of the stator support to form a revolute pair, the stator support and the coil windings are arranged in an annular space between the rotor central shaft and the magnetic ring, and the upper end of the stator support protrudes out of the upper end of the coil windings to form a connecting part; the cylinder body seat is fixedly connected with the connecting part, the turntable shaft is coaxial with the rotor central shaft, and the lower end of the turntable shaft is meshed with the upper end of the rotor central shaft to transmit torque;
further, the connecting part is a cylindrical groove with an upward opening, the outer circumference of the cylinder body seat is matched with the inner circumference of the connecting part groove, and the cylinder body seat is arranged in the connecting part groove to form interference fit, so that the spherical pump is fixedly connected with the stator bracket of the outer rotor motor;
further, a shaft sleeve is arranged at the matching part of the central shaft hole of the stator bracket and the rotor central shaft to serve as a rotary support of the rotor central shaft;
further, the shaft sleeve is divided into an upper section and a lower section, the diameter of an inner hole of the shaft sleeve is smaller than that of a central shaft hole of the stator bracket, and the shaft sleeve is embedded in the central shaft hole of the stator bracket in advance; the shaft sleeve is made of copper or other wear-resistant materials;
further, a semicircular shaft head is arranged at the lower end of the turntable shaft, a semicircular shaft head matched with the semicircular shaft head of the turntable shaft is arranged on the upper end face of the central shaft of the rotor, and the lower end of the turntable shaft is meshed with the upper end of the central shaft of the rotor through the semicircular shaft head to form rotary connection;
further, a cylindrical sleeve is arranged on the outer circumference of the meshing part of the turntable shaft and the central shaft of the rotor, and the sleeve is fixedly coated on the upper circumference of the semicircular shaft of the turntable shaft or fixedly coated on the lower circumference of the semicircular shaft of the central shaft of the rotor;
further, the lower end of the turntable shaft and the upper end of the rotor central shaft are round shaft heads, a sleeve is arranged on the periphery of a meshing part of the lower end of the turntable shaft and the upper end of the rotor central shaft, the sleeve is respectively clamped on the round shaft heads at the lower end of the turntable shaft and the upper end of the rotor central shaft in an interference fit manner, and the lower end of the turntable shaft and the upper end of the rotor central shaft are connected through the sleeve to form running fit;
further, the spherical pump comprises a cylinder body and a cylinder cover, the cylinder body and the cylinder cover are fixedly connected to form a spherical inner cavity, and the cylinder body and the cylinder cover are fixedly connected in any one of ultrasonic welding, screw connection, glue bonding or clamp connection; wherein, the material of the clamp in the clamp connection is metal or heat-shrinkable plastic;
further, the outer rotor motor further comprises a motor protection shell, and an opening part at the upper end of the motor protection shell is fixedly connected with the outer circumference of the connecting part in a sealing way;
further, the motor protection shell is a cylindrical barrel body with an upward opening, a protection shell positioning ring is arranged between the inner circumference of the opening of the cylindrical barrel body and the outer circumference of the connecting part, and the protection shell positioning ring is respectively and fixedly connected with the inner circumference of the motor protection shell and the outer circumference of the connecting part in a sealing way; the shape of the upper end of the protective shell positioning ring is matched with the shape of the lower end of the spherical pump cylinder body.
The advantage of this patent is:
1) The spherical pump is matched with the outer rotor motor, the outer rotor motor is small in size, the stator bracket of the outer rotor motor protrudes out of the motor to form a connecting part, an embedded structure is arranged at the connecting part, the axial size of connection between the spherical pump and the motor is reduced, and a pump power unit formed by combining the spherical pump and the outer rotor motor is small in size and compact in structure, so that the spherical pump is suitable for various occasions with strict requirements on the size, and the advantage of small size of the spherical pump is fully exerted;
2) The cylinder body seat at the lower end of the spherical pump is embedded into the groove of the connecting part of the outer rotor motor in an interference fit mode, other connecting pieces are not needed, the assembly can be completed only by lightly pressing in, the rotor central shaft and the rotary disc shaft of the spherical pump are directly meshed after the assembly, the spherical pump is connected with the outer rotor motor conveniently, the assembly efficiency is high, the installation accuracy is high, and the power loss of the motor is small.
Drawings
Fig. 1: the spherical pump and motor assembly has a schematic outline structure;
fig. 2: FIG. 1 isbase:Sub>A sectional view A-A;
fig. 3: FIG. 2 is a sectional view D-D;
fig. 4: a three-dimensional structure schematic diagram of a spherical pump sliding shoe seat;
fig. 5: a three-dimensional structure schematic diagram of a spherical pump cylinder cover;
fig. 6: a three-dimensional structure schematic diagram of a spherical pump cylinder body;
fig. 7: the cylinder body and the cylinder cover are fixedly connected through a clamp;
fig. 8: a schematic diagram of a clamp three-dimensional structure;
fig. 9: a schematic diagram of a three-dimensional structure of a spherical pump piston;
fig. 10: a three-dimensional structure schematic diagram of a rotary table of the spherical pump;
in the figure:
1-a spherical pump; 11-a cylinder cover; 111-water inlet port; 112-a water outlet port; 113-slipper seat aperture; 114-a water inlet groove; 115-a water outlet tank; 12-cylinder body; 121-a cylinder block base; a 13-stop ring; 14-sealing rings; 15-a turntable; 151-a turntable shaft; 152-a turntable pin holder; 16- "O" ring; 17-a piston; 171-skid shoes; 172-piston pin bosses; 18-a slipper; 19-clamping hoop; 100-working chamber;
2-an outer rotor motor; 21-a motor protective shell; 22-a protective shell positioning ring; 23-an outer rotor of the motor; 231-an outer rotor body; 232-rotor central shaft; 233-magnetic ring; 24-motor stator; 241-coil windings; 242-stator support; 243-connecting section; 25-shaft sleeve;
3-sleeve.
Detailed Description
The present patent is described in detail below with reference to the drawings and detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 3, the combination of the spherical pump and the motor described in this patent is used as a power unit, and can be used for a tooth cleaner, the turntable shaft 151 of the spherical pump 1 is used as a power input shaft of the spherical pump 1, and the central hole of the cylinder seat 121 at the lower part of the spherical pump 1 is used as a rotary support, as shown in fig. 6 and 10, the cylinder seat 121 is a cylinder protruding from the lower end of the cylinder 12 of the spherical pump 1, and is used as a rotary support of the turntable shaft 151 and a connecting piece of the spherical pump 1 and the outer rotor motor 2.
The outer rotor motor 2 in this patent is designed according to the volume requirement of the spherical pump 1 to the motor, and is structurally adapted to the spherical pump 1 under the condition of meeting the electrical property, the outer rotor motor 2 comprises a motor outer rotor 23, a motor stator 24 and a motor protection shell 21, the motor outer rotor 23 of the outer rotor motor 2 is provided with a cylindrical outer rotor body 231 with an upward opening, a magnetic ring 233 formed by a plurality of groups of magnets is fixed on the inner circumference of the outer rotor body 231, a rotor central shaft 232 is fixedly arranged in the center of the bottom surface of the cylindrical outer rotor body 231, and the magnetic ring 233 and the rotor central shaft 232 synchronously rotate along with the outer rotor body 231. The motor stator 24 comprises a stator support 242 and a plurality of coil windings 241 which are formed by a plurality of groups of coils and magnetic steel and are distributed on the outer circumference of the stator support 242, wherein the number of the coil windings 241 in the patent is 9, and the coil windings 241 are uniformly distributed on the outer circumference of the stator support 242, so that the motor stator 24 is formed. A central shaft hole penetrating up and down is arranged in the center of the stator support 242, the rotor central shaft 232 is inserted into the central shaft hole of the stator support 242 from the lower end, the stator support 242 and the coil windings 241 are arranged in an annular space between the rotor central shaft 232 and the magnetic ring 233 of the outer rotor, the outer diameter of the rotor central shaft 232 is matched with the diameter of the central shaft hole of the stator support 242, and a revolute pair is formed in the central shaft hole of the stator support 242.
The upper end of the stator support 242 protrudes from the upper end of the coil winding 241 to form a connecting portion 243; the connecting portion 243 is a cylindrical groove with an upward opening and is used for connecting the spherical pump 1, the outer circumference of the cylinder seat 121 of the spherical pump 1 is matched with the inner circumference of the groove of the connecting portion 243, and the cylinder seat 121 is arranged in the groove of the connecting portion 243 to form interference fit, so that the spherical pump 1 is fixedly connected with the stator support 241 of the outer rotor motor 2. The connecting part 243 can be used as an independent part and fixedly connected to the upper end of the stator support 242, and can also be designed as a whole with the stator support 242 as an upward extending part of the stator support 242; after the cylinder body seat 121 is fixedly connected with the connecting part 243, the turntable shaft 151 and the rotor central shaft 232 are coaxial, and the lower end surface of the turntable shaft 151 is meshed with the upper end surface of the rotor central shaft 232 to transmit torque, so that the outer rotor motor 2 drives the spherical pump 1 to operate.
The lower end face of the turntable shaft 151 is meshed with the upper end face of the rotor central shaft 232 in a plurality of modes, and can be connected through internal splines, namely, external splines and internal splines are respectively arranged on the lower end face of the turntable shaft 151 and the upper end face of the rotor central shaft 232, and can be meshed with each other through the splines, and can also be meshed with square holes, in the embodiment, the semicircular shaft heads are adopted to transmit torque in a matched mode, as shown in fig. 7, semicircular shaft heads are arranged at the lower end of the turntable shaft 151, semicircular shaft heads matched with the semicircular shaft heads of the turntable shaft 151 are arranged at the upper end of the rotor central shaft 232, and the turntable shaft 151 and the rotor central shaft 232 are meshed through flat shaft parts of the semicircular shaft heads to form rotation connection transmission torque. For accurate and reliable connection of the semicircular shaft heads, further, a cylindrical sleeve 3 is arranged on the outer circumference of the meshing part of the turntable shaft 151 and the rotor central shaft 232, and the sleeve 3 is fixedly coated on the upper circumference of the semicircular shaft of the turntable shaft 151 or the lower circumference of the semicircular shaft head of the outer rotor central shaft. The lower end of the turntable shaft 151 and the upper end of the rotor central shaft 232 can also be in interference fit with the round shaft heads at the two ends respectively by adopting the sleeve 3 to realize rotary connection, and in the connection mode, the lower end of the turntable shaft 151 and the upper end of the rotor central shaft 232 do not need to be manufactured into a semicircular shaft head, so that the connection mode is simple and the operation is convenient.
In order to reduce the rotational friction between the rotor center shaft 232 and the center shaft hole of the stator support 242, reduce the power consumption and the wear, a shaft sleeve 25 is provided at the matching portion of the center shaft hole of the stator support 242 and the rotor center shaft 232 as the rotational support of the rotor center shaft 232; the material of the shaft sleeve 25 is copper or other wear-resistant materials; the shaft sleeve 25 is divided into an upper section and a lower section, the diameter of the inner hole of the shaft sleeve 25 is slightly smaller than that of the central shaft hole of the stator support 242, and the shaft sleeve 25 can be embedded in the central shaft hole of the stator support 242 in advance.
In order to prevent water from entering the motor and protect the motor safely, the outer rotor motor 2 further comprises a motor protection shell 21, and an upper end opening part of the motor protection shell 21 is fixedly connected with the outer circumference of the connecting part 243 in a sealing way; further, the motor protection shell 21 is a cylindrical barrel body with an upward opening, the cylindrical barrel is similar to a water barrel, a protection shell positioning ring 22 is arranged between the inner circumference of the opening of the cylindrical barrel body and the outer circumference of the connecting part 243, and the protection shell positioning ring 22 is respectively and fixedly connected with the inner circumference of the motor protection shell 21 and the outer circumference of the connecting part 243 in a sealing manner; in practice, the protective housing positioning ring 22 is pressed between the inner circumference of the upper end opening of the motor protective housing 21 and the outer circumference of the connecting portion 243 by interference fit. The upper end shape of the protective shell positioning ring 22 is matched with the circular arc shape of the lower end of the cylinder body 12 of the spherical pump 1.
In the patent, a miniature spherical pump is adopted as the spherical pump 1, as shown in fig. 2 and 4-10, the spherical pump 1 comprises a cylinder cover 11, a cylinder body 12, a turntable 15, a piston 17 and a sliding shoe 18, wherein the cylinder body 12 and the cylinder cover 11 are provided with hemispherical inner cavities, and the cylinder body 12 and the cylinder cover 11 are fixedly connected to form spherical inner cavities; a sliding shoe hole 113, a water inlet groove 114 and a water outlet groove 115 are arranged on the hemispherical inner cavity of the cylinder cover 11, a water inlet port 111 and a water outlet port 112 are arranged on the outer wall of the upper end of the cylinder cover 11, the water inlet port 111 is communicated with the water inlet groove 114, and the water outlet port 112 is communicated with the water outlet groove 115; the water inlet port 111 and the water outlet port 112 are respectively used for connecting a water tank and a nozzle of the tooth cleaner; the slipper hole 113 is arranged at the spherical center of the hemispherical cavity, the axis of the slipper hole 113 is perpendicular to the end face of the hemispherical cavity of the cylinder cover 11, and a protruding positioning ring is arranged on the end face and is used for matching and positioning when being connected with the end face of the cylinder body 12.
A cylinder seat 121 is fixedly connected to the lower end of the cylinder 12, the cylinder seat 121 is integrally connected with the cylinder 12, a central hole which is communicated with the outside of the cylinder from the spherical surface of the hemispherical inner cavity of the cylinder is arranged in the cylinder seat 121, the central hole is used as a rotary support of the turntable shaft 151, the included angle between the axis of the central hole and the end surface of the hemispherical inner cavity of the cylinder 12 is alpha, the size of the alpha ranges from 5 degrees to 20 degrees, and the alpha is preferably selected to be 15 degrees in the embodiment. The end faces of the hemispherical inner cavities of the cylinder body 12 and the cylinder cover 11 are provided with positioning structures and connecting flanges, the end face of the cylinder cover 11 is provided with a protruding positioning ring, and the end face of the cylinder body 12 is provided with a positioning groove matched with the protruding positioning ring. An O-ring 16 is provided at the junction of the cylinder block 112 and the end face of the cylinder head 111. The cylinder body 12 and the cylinder cover 11 can be fixedly connected through screws, can be fixedly connected through ultrasonic welding after being positioned by the positioning structure, can also be fixedly connected through direct bonding by using glue, and the cylinder body 12 and the cylinder cover 11 in fig. 1 and 2 can be fixedly connected through ultrasonic welding or bonding by using glue. The cylinder body 12 and the cylinder cover 11 can also be fixedly connected by adopting a clamp 19, as shown in fig. 7-8, the structure of the cylinder body 12 and the cylinder cover 11 is unchanged from the above, but a clamp 19 is added, the clamp 19 is cylindrical before being installed, the diameter of the inner circumference of the cylinder is matched with the diameter of the outer circumference of a connecting flange of the cylinder body 12 and the cylinder cover 11, the inner circumference of the clamp 19 is clamped on the outer circumference of a connecting flange of the cylinder body 12 and the cylinder cover 11 when being installed, and then flanges are formed by closing up at the upper side and the lower side of the flange, and the cylinder body 12 and the cylinder cover 11 are fixedly connected by the contraction force during closing up; the clip 19 shown in fig. 8 has a flange formed by closing in both sides. The clamp 19 can be made of metal materials, and the clamp 19 is sleeved on the outer circumferences of the connecting flanges of the cylinder body 12 and the cylinder cover 11, and then the clamp 19 is placed on the upper surface and the lower surface of the connecting flange to deform to form flanging, so that the upper side and the lower side of the connecting flange are closed; the clamp 19 can also be made of heat-shrinkable materials, and the clamp 19 deforms and contracts when the temperature is reduced after hot-filling, and the upper side and the lower side of the connecting flange automatically form a closing-in, so that the connecting flange is locked to fixedly connect the cylinder body 12 and the cylinder cover 11. In order to further increase the tightness of the joint between the cylinder body 12 and the cylinder cover 11, a layer of sealant can be applied to the inside of the clamp 19 before the clamp 19 is installed and fixed.
As shown in fig. 2 and 9, the piston 17 has a spherical surface, two angled side surfaces and piston pin bosses 172 at the lower parts of the two side surfaces, a sliding shoe 171 is arranged at the center of the spherical surface of the piston spherical surface in a protruding manner, the piston pin bosses 172 are arranged below the piston spherical surface, the piston pin bosses 172 are semi-cylindrical structures protruding from the two side surfaces of the piston, and the two ends of each semi-cylinder are spherical surfaces; the shoe 171 has two flat surfaces as working surfaces symmetrically arranged on both sides of the semi-cylindrical axis of the piston pin boss 172; the axis of the half cylinder of the piston pin boss 172 is parallel to the two parallel faces of the slipper 171.
As shown in fig. 2 and 10, the upper end of the turntable 15 is a plane, a semi-cylindrical hole is recessed inwards on the upper end plane to form a turntable pin seat 152, a turntable shaft 151 protrudes from the center of the lower part of the turntable 15, and a turntable spherical surface is arranged between the upper end surface of the turntable 15 and the lower end turntable shaft 151; the turntable pin socket 152 is matched with the piston pin socket 172, and a half cylinder of the piston pin socket 172 is inserted into a half cylinder hole of the turntable pin socket 152 to form a C-shaped cylindrical surface hinge structure;
as shown in fig. 4, the shoe 18 is cylindrical, a chute 181 is disposed on the lower end surface of the cylinder, the width of the chute 181 is matched with the distance between two parallel working surfaces of the shoe 171 of the piston, the length of the chute 181 is enough to satisfy the length of the sliding shoe 171 sliding reciprocally in the chute 181 when the turntable shaft 151 rotates once, and the length of the chute 181 may or may not pass through the lower end surface of the shoe 18 and only satisfy the length of the sliding shoe 171 sliding reciprocally. The diameter of the outer circle of the sliding shoe 18 is matched with the diameter of the sliding shoe hole 11 on the cylinder cover 11, the sliding shoe 18 is arranged in the sliding shoe hole 113, the lower end face of the sliding shoe 18 does not protrude out of the spherical inner surface of the spherical inner cavity, the axis of the sliding shoe 18 coincides with the axis of the sliding shoe hole 113, the sliding shoe 18 can freely rotate around the axis in the sliding shoe hole 113, in order to install and reduce friction between the upper end face of the sliding shoe 18 and the bottom face of the sliding shoe hole 113, a process groove is arranged on the upper end face of the sliding shoe 18, a through process hole is arranged between the process groove and the bottom of the sliding groove 181, and the installation is convenient.
A baffle ring 13 and a sealing ring 14 are arranged on the matching surface of the turntable shaft 151 and the central hole of the cylinder block 121; the turntable shaft 151 is matched with the central hole of the cylinder block 121, the turntable shaft 151 is a step shaft, and the central hole of the cylinder block 121 is a corresponding step hole; a sealing ring 14 is arranged on the upper end journal of the turntable shaft 151 to prevent water from entering the motor, and a baffle ring 13 prevents the sealing ring 14 from moving and forms a rotary support. A half shaft head or a round shaft head is arranged at the lower end of the turntable shaft 151 and is used for transmitting power with the output shaft of the power mechanism.
The axis of the sliding shoe hole 113 on the inner spherical surface of the cylinder cover 11 and the axis of the central hole of the cylinder body seat 121 pass through the spherical center of the spherical inner cavity, and the included angle between the axis of the sliding shoe hole 113 and the axis of the central hole of the cylinder body seat 121 is alpha; the piston 17 and the rotary table 15 are connected through a cylindrical surface hinge and then are arranged in the spherical cavity, the spherical surface of the piston, the spherical surface of the rotary table and the spherical cavity have the same spherical center and form sealing movable fit, and sealing movable fit is formed between the matching surfaces of the cylindrical surface hinge; the sliding shoes 171 on the upper ends of the pistons 17 are placed in the sliding grooves 181 on the lower end surfaces of the sliding shoe seats 18, two parallel surfaces of the sliding shoes 171 are attached to two side surfaces of the sliding grooves 181 to form sliding fit, and the sliding shoes 171 can slide back and forth in the sliding grooves 181 to form a sliding groove swinging mechanism; the turntable shaft 151 is driven to rotate, the piston 17 and the turntable 15 swing relatively around the cylindrical hinge, the sliding shoe 171 slides reciprocally in the sliding groove 181, and two working chambers 100 with alternating volumes are formed among the upper end surface of the turntable 15, the two side surfaces of the piston 17 and the spherical inner chamber.
In the embodiment, the spherical diameter of the spherical inner cavity of the spherical pump 1 is 13 mm, the diameters of the outer rotor motor 2 and the spherical pump 1 are only 19 mm, and the overall length of the combined spherical pump 1 and the combined spherical pump 1 is not more than 51 mm, so that the volume of a pump power unit combined by the spherical pump 1 and the motor is smaller, and when the combined spherical pump is used for a tooth cleaner product, the size of the tooth cleaner is greatly reduced, and the quality is greatly improved.
Claims (10)
1. The spherical pump and motor combination is characterized in that: the rotary table comprises a spherical pump (1) and an outer rotor motor (2), wherein a rotary table shaft (151) of the spherical pump (1) takes a central hole of a cylinder seat (121) at the lower part of the spherical pump (1) as a rotary support, a motor outer rotor (23) of the outer rotor motor (2) is provided with a cylindrical outer rotor body (231) with an upward opening, a magnetic ring (233) is arranged on the inner circumference of the outer rotor body (231), and a rotor central shaft (232) is arranged at the center of the bottom surface of the cylindrical outer rotor body (231); the outer rotor motor comprises a motor stator (24) of an outer rotor motor (2), wherein the periphery of a stator support (242) with a central shaft hole is provided with a plurality of groups of coil windings (241) formed by coils and magnetic steel, a rotor central shaft (232) is arranged in the central shaft hole of the stator support (242) to form a revolute pair, the stator support (242) and the coil windings (241) are arranged in an annular space between the rotor central shaft (232) and a magnetic ring (233), and the upper end of the stator support (242) protrudes out of the upper end of the coil windings (241) to form a connecting part (243); the cylinder body seat (121) is fixedly connected with the connecting part (243), the turntable shaft (151) is coaxial with the rotor central shaft (232), and the lower end of the turntable shaft (151) is meshed with the upper end of the rotor central shaft (232) to transmit torque.
2. The combination ball pump and motor of claim 1 wherein: the connecting part (243) is a cylindrical groove with an upward opening, the outer circumference of the cylinder body seat (121) is matched with the inner circumference of the groove of the connecting part (243), and the cylinder body seat (121) is arranged in the groove of the connecting part (243) to form interference fit, so that the spherical pump (1) is fixedly connected with the stator bracket (242) of the outer rotor motor (2).
3. The combination ball pump and motor of claim 1 wherein: a shaft sleeve (25) is arranged at the matching part of the central shaft hole of the stator bracket (242) and the rotor central shaft (232) and is used as a rotary support of the rotor central shaft (232).
4. A spherical pump and motor combination as set forth in claim 3 wherein: the shaft sleeve (25) is divided into an upper section and a lower section, the diameter of an inner hole of the shaft sleeve (25) is smaller than that of a central shaft hole of the stator bracket (242), and the shaft sleeve (25) is embedded in the central shaft hole of the stator bracket (242) in advance; the shaft sleeve (25) is made of copper or other wear-resistant materials.
5. The combination ball pump and motor of claim 1 wherein: a semicircular shaft head is arranged at the lower end of the turntable shaft (151), a semicircular shaft head matched with the semicircular shaft head of the turntable shaft (151) is arranged on the upper end face of the rotor central shaft (232), and the lower end of the turntable shaft (151) is meshed with the upper end of the rotor central shaft (232) through the semicircular shaft head to form rotary connection.
6. The combination ball pump and motor of claim 5 wherein: a cylindrical sleeve (3) is arranged on the outer circumference of the meshing part of the turntable shaft (151) and the rotor central shaft (232), and the sleeve (3) is fixedly coated on the upper circumference of the semicircular shaft of the turntable shaft (151) or the lower circumference of the semicircular shaft of the rotor central shaft (232).
7. The combination ball pump and motor of claim 1 wherein: the lower end of the turntable shaft (151) and the upper end of the rotor central shaft (232) are round shaft heads, a sleeve (3) is arranged on the periphery of a meshing part of the lower end of the turntable shaft (151) and the upper end of the rotor central shaft (232), the sleeve (3) is respectively clamped on the round shaft heads at the lower end of the turntable shaft (151) and the upper end of the rotor central shaft (232) in an interference fit mode, and the lower end of the turntable shaft (151) and the upper end of the rotor central shaft (232) are connected through the sleeve (3) to form a running fit.
8. The combination ball pump and motor of claim 1 wherein: the spherical pump (1) comprises a cylinder body (12) and a cylinder cover (11), wherein the cylinder body (12) and the cylinder cover (11) are fixedly connected to form a spherical inner cavity, and the cylinder body (12) and the cylinder cover (11) are fixedly connected in any one of ultrasonic welding, screw connection, glue bonding or clamp connection; wherein, the material of the clamp (19) in the clamp connection is metal or heat-shrinkable plastic.
9. The combination ball pump and motor of claim 1 wherein: the outer rotor motor (2) further comprises a motor protection shell (21), and the upper end opening part of the motor protection shell (21) is fixedly connected with the outer circumference of the connecting part (243) in a sealing mode.
10. The combination ball pump and motor of claim 9 wherein: the motor protection shell (21) is a cylindrical barrel body with an upward opening, a protection shell positioning ring (22) is arranged between the inner circumference of the opening of the cylindrical barrel body and the outer circumference of the connecting part (243), and the protection shell positioning ring (22) is respectively and fixedly connected with the inner circumference of the motor protection shell (21) and the outer circumference of the connecting part (243) in a sealing way; the shape of the upper end of the protective shell positioning ring (22) is matched with the shape of the lower end of the cylinder body (12) of the spherical pump (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222892695.1U CN218920093U (en) | 2022-10-28 | 2022-10-28 | Spherical pump and motor assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222892695.1U CN218920093U (en) | 2022-10-28 | 2022-10-28 | Spherical pump and motor assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759535A (en) * | 2024-01-31 | 2024-03-26 | 广州星际悦动股份有限公司 | Spherical rotor pump and tooth cleaning device |
| WO2024088034A1 (en) * | 2022-10-28 | 2024-05-02 | 深圳市球形动力科技有限公司 | Spherical pump and motor assembly |
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2022
- 2022-10-28 CN CN202222892695.1U patent/CN218920093U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024088034A1 (en) * | 2022-10-28 | 2024-05-02 | 深圳市球形动力科技有限公司 | Spherical pump and motor assembly |
| CN117759535A (en) * | 2024-01-31 | 2024-03-26 | 广州星际悦动股份有限公司 | Spherical rotor pump and tooth cleaning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230809 Address after: A706, Block A, TCL Building, No. 6 Gaoxinyuan 1st Road, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province, 518000 Patentee after: Shenzhen Spherical Power Technology Co.,Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: Shenzhen Zhong'an Power Technology Co.,Ltd. |