TWI747065B - Thin pump - Google Patents

Abstract

The present invention relates to a thin pump, which includes: a first casing, a partition, a motor, an impeller and a second casing. The first shell has a flow channel. The partition has a first chamber and a second chamber, and the first chamber communicates with the flow channel. The motor has a rotor and a stator, the rotor is arranged in the first chamber, and the stator is arranged in the second chamber. The impeller is connected to the rotor and is arranged in the first chamber. The second shell is arranged on one side of the second chamber of the partition. Therefore, by using the flow channel structure of the thin pump of the present invention, the flow path of the fluid can be effectively planned without complicated structural design, so as to achieve the effect of reducing the volume and thinning.

Description

Thin pump

The present invention relates to a pump, especially a thin pump.

Conventional thin pumps are common, such as water pumps, which can mainly control the circulation of fluids such as cooling water to dissipate heat from various products on the market that are prone to high temperatures during operation.

In addition, the conventional water pump can be applied to various types of units (such as cooling tanks, water tanks or the heat dissipation system of electronic products, etc.), so it is necessary to consider how to avoid occupying too much space for various types of units during installation; and because the current electronic products are all headed for shrinking The trend of volume development, so its heat dissipation system must also be able to achieve a thin design that can be reduced in size to facilitate installation. Therefore, the volume reduction and thinning design of conventional water pumps applied to various types of units is One of the problems that the water pump must overcome at present.

The present invention provides a thin pump. In one embodiment, the thin pump includes: a first casing, a partition, a motor, an impeller, and a second casing. The first shell has a flow channel. The partition has a first chamber and a second chamber, and the first chamber communicates with the flow channel. The motor has a rotor and a stator, the rotor is arranged in the first chamber, and the stator is arranged in the second chamber. The impeller is connected to the rotor and is arranged in the first chamber. The second shell is arranged on one side of the second chamber of the partition.

Therefore, by using the flow channel structure of the thin pump of the present invention, the flow path of the fluid can be effectively planned without complicated structural design, so as to achieve the effect of reducing the volume and thinning.

Fig. 1 shows a perspective view of a thin pump according to an embodiment of the present invention. Fig. 2 shows a three-dimensional exploded view of a first housing and a partition of a thin pump according to an embodiment of the present invention. Fig. 3 shows a three-dimensional exploded view of the first housing, the partition and the second housing of the thin pump according to an embodiment of the present invention. Fig. 4 shows a perspective exploded view of a second housing and a partition of a thin pump according to an embodiment of the present invention. Fig. 5 shows a three-dimensional exploded view of a motor, a partition and a second housing of a thin pump according to an embodiment of the present invention. Fig. 6 shows a partial cross-sectional view of a thin pump according to an embodiment of the present invention. With reference to FIGS. 1 to 6, the thin pump 1 of the present invention includes: a first casing 10, a partition 20, a motor 40, an impeller 50 and a second casing 60. In one embodiment, the thin pump 1 of the present invention can be installed in an environment with a fluid such as coolant, water, lubricating oil, etc., such as a cooling system or a pumping system, etc., to control the fluid for suction and The circulating flow operation of discharge, but not limited to the above, the thin pump 1 can also be used for other appropriate purposes.

In one embodiment, the first housing 10 has a flow channel 11. The partition 20 has a first chamber 21 and a second chamber 22, and the first chamber 21 communicates with the flow channel 11. The partition 20 further includes a first side surface 23 and a second side surface 24. The first cavity 21 is disposed on the first side surface 23, and the second cavity 22 is disposed on the second side surface 24, that is, the The first chamber 21 and the second chamber 22 are respectively disposed on the first side surface 23 and the second side surface 24 opposite to each other.

In one embodiment, the motor 40 has a rotor 41 and a stator 42. The rotor 41 is disposed in the first chamber 21, and the stator 42 is disposed in the second chamber 22. The impeller 50 is connected to the rotor 41 and is arranged in the first chamber 21. The second housing 60 is disposed on one side of the second cavity 22 of the partition 20.

In one embodiment, the partition 20 further includes an inlet 25, an outlet 26, a first end face 27, and a second end face 28. The inlet 25 is disposed on the first end face 27, and the outlet 26 is disposed on the first end face. Two end face 28. In one embodiment, the partition 20 further includes a first passage 31 which communicates with the inlet 25 and the flow passage 11, and the first passage 31 gradually expands from the inlet 25 to the flow passage 11. . In one embodiment, the partition 20 further includes a second channel 32 that communicates with the outlet 26 and the first chamber 21, and the second channel 32 is from the first chamber 21 to the Exit 11 is tapering.

In one embodiment, the partition 20 further includes a block 33 disposed in the second channel 32, and the block 33 has a tapered structure 331. As shown in FIG. 2, the block 33 shown by the dashed line is the setting direction, so that the first chamber 21 to the outlet 26 is tapered; the block 33 shown by the solid line is used to show the tapered structure 331.

In an embodiment, the first housing 10 further includes a flow channel 12 and a cover plate 13, and the cover plate 13 is disposed on the flow channel groove 12 to form the flow channel 11. The first housing 10 further includes a first surface 14 and a second surface 15. The first surface 14 has a notch 141. The runner groove 12 is disposed at a position relative to the notch 141 and is located on the cover. The space of the flow channel 11 is formed between the plate 13 and the flow channel groove 12 (please refer to FIG. 6).

In one embodiment, the cover 13 is used to close the notch 141. The cover plate 13 is combined with the first housing 10 by laser welding to close the notch 141 to form the flow channel 11. Using the flow channel 11, the fluid can smoothly enter the first chamber 21 through the inlet 25, the first channel 31 and the flow channel 11. Moreover, by using the structure in which the flow channel 11 is provided in the first housing 10, the flow path of the fluid can be effectively planned, and the volume reduction and thinning can be achieved without complicated structural design.

In one embodiment, the motor 40 further includes a central shaft 43 and at least one washer 44, and the rotor 41 has a bearing 412 and a permanent magnet 414. The bearing 412 is arranged in the center of the impeller 50, the central shaft 43 is arranged in the bearing 412, the at least one gasket 44 is sleeved on the central shaft 43, so that the central shaft 43 extends through the impeller 50, and The at least one gasket 44 can be used to position the central shaft 43 in the impeller 50. The permanent magnet 414 is arranged on one side of the impeller 50.

In one embodiment, the bearing 412 may be covered during injection molding of the impeller 50; alternatively, the bearing 412 may be tightly coupled to the center of the impeller 50. In one embodiment, the first chamber 21 includes a first groove 211 for accommodating the impeller 50. The first chamber 21 further includes a second chamber 212 for accommodating the permanent magnet 414. By using the layered design of the first chamber 211 and the second chamber 212 of the first chamber 21, the volume can be further reduced to achieve the effect of thinning.

In one embodiment, the cover plate 13 further includes a first shaft seat 131 for fixing the central shaft 43, and the second groove chamber 212 further includes a second shaft seat 213 for fixing the central shaft 43 , The central shaft 43 is fixed to the first shaft seat 131 and the second shaft seat 213, the bearing 412 and the permanent magnet 414 of the rotor 41 rotate relative to the central shaft 43 and drive the impeller 50 to rotate , To drive the fluid flow in the first chamber 21.

In one embodiment, the stator 42 has a winding 421 and a circuit board 422, and the winding 421 is electrically connected to the circuit board 422. The second cavity 22 includes a third slot 221, which is annular in shape, and is used for accommodating the winding 421. The second cavity 22 further includes a fourth slot 222 for accommodating the circuit board 422. The cylindrical protrusion in the center of the third slot 221 corresponds to the space where the second slot 212 of the first chamber 21 accommodates the permanent magnet 414, and the winding 421 is arranged around the permanent magnet 414 so that The winding 421 and the permanent magnet 414 can interact, and the volume can be further reduced to achieve the effect of thinning.

In one embodiment, the partition 20 further includes a first sealing member 34 disposed on the periphery of the first chamber 21 to prevent the fluid in the first chamber 21 from flowing out. The partition 20 further includes a second sealing member 35 disposed on the periphery of the first side surface 23 to prevent the fluid in the first channel 31 and the second channel 32 from flowing out. In one embodiment, the first sealing element 34 and the second sealing element 35 can be integrated into a single sealing element. In one embodiment, the partition 20 further includes a third sealing member 36 disposed on the periphery of the second side surface 24 to protect the winding 421 and the circuit board 422.

In an embodiment, the first housing 10 further includes a covering portion 19 for covering the first cavity 21. The covering portion 19 protrudes on the second surface 15 correspondingly, and the shape of the covering portion 19 is relative to the shape of the first cavity 21 to cover the first cavity 21.

Fig. 7 shows a perspective view of a thin pump according to another embodiment of the present invention. Fig. 8 shows a perspective exploded view of the first housing and the partition of a thin pump according to another embodiment of the present invention. Fig. 9 shows a partial cross-sectional view of a thin pump according to another embodiment of the present invention. With reference to FIGS. 7-9, in one embodiment, the first housing 10 further includes two opposite side walls 16, 17 and a slot plate 18, and the slot plate 18 is disposed on the two opposite side walls 16, 17 to form The flow channel 11. The two opposite side walls 16, 17 are disposed on the second surface 15, and the slot plate 18 is used to connect the two opposite side walls 16, 17 so that the slot plate 18 is protruding relative to the second surface 15, so that it can be The space of the flow channel 11 is formed between the second surface 15 and the slot plate 18 (please refer to FIG. 9).

In one embodiment, the slot plate 18 is connected to the two opposite side walls 16 and 17 by laser welding to form the flow channel 11. Using the flow channel 11, the fluid can smoothly enter the first chamber 21 through the inlet 25, the first channel 31 and the flow channel 11. In addition, by using the structure of the second surface 15 of the first housing 10 with the flow channel 11, the flow path of the fluid can be effectively planned, and the volume reduction and thinning can be achieved without complicated structural design. In addition, since the groove plate 18 is disposed on the second surface 15, the first surface 14 of the first housing 10 is a smooth surface without welding structure, which can improve the appearance of the thin pump of the present invention.

In one embodiment, the second surface 15 further includes a first shaft seat 151 for fixing one end of the central shaft 43. As described above, the other end of the central shaft 43 is fixed to the second groove 212 The second shaft seat 213.

In one embodiment, the first housing 10 and the partition 20 may be made of metal material, so that the first housing 10 and the partition 20 can be combined by laser welding. By using laser welding, the adhesion and bonding force between the first housing 10 and the partition 20 can be improved, so that the fluid in the first chamber 21 will not leak out due to poor adhesion. In one embodiment, the second housing 60 and the partition 20 may be made of metal material, and the second housing 60 and the partition 20 may be combined by laser welding to elevate the second housing 60 and the partition. The tightness and bonding force between the components 20 can further protect the winding 421 and the circuit board 422. In one embodiment, the first housing 10, the second housing 60, and the partition 20 can all be made of metal materials to facilitate laser welding.

Fig. 10 shows a schematic cross-sectional view of a thin pump according to another embodiment of the present invention. With reference to FIG. 10, in one embodiment, the first housing 10 and the second housing 60 may be made of metal, and the first housing 10 and the second housing 60 are combined by laser welding, and include Cover the partition 20 so that the first chamber 21 and the second chamber 22 in the partition 20 have a better adhesion effect. In one embodiment, two spacers 44 can be tightly coupled to the two ends of the central shaft 43, respectively, and two spacers 44 can be tightly coupled to the first shaft seat 131 and the first shaft base 131 and the second shaft that are fixed to the cover plate 13 respectively. The second shaft seat 213 is used to fix the central shaft 43. In one embodiment, the rotor 41 further includes a protective member 415 covering the permanent magnet 414. The protective member 415 can be made of a metal material to form a box body to protect the permanent magnet 414 and prevent water vapor from entering and corroding the permanent magnet 414. In one embodiment, a space of the flow channel 11 is formed between the cover plate 13 and the flow channel groove 12, and the flow channel 11 is in communication with the first chamber 21, so that the fluid can flow smoothly through the flow path.

Therefore, by using the flow channel 11 structure of the thin pump 1 of the present invention, the flow path of the fluid can be effectively planned without complicated structural design, so as to achieve the effect of reducing the volume and thinning.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but do not limit the present invention. Modifications and changes made by those skilled in the art to the above-mentioned embodiments still do not violate the spirit of the present invention. The scope of rights of the present invention should be listed in the scope of patent application described later.

1: Thin pump 10: The first shell 11: Runner 12: Runner groove 13: cover 131: The first shaft seat 14: First side 141: Notch 15: second side 151: The first shaft seat 16, 17: side wall 18: Slot board 19: Covering part 20: divider 21: The first chamber 211: first tank 212: second tank room 213: Second shaft seat 22: second chamber 221: third tank room 222: The fourth tank 23: first side 24: second side 25: entrance 26: Exit 27: The first end face 28: second end face 31: First channel 32: second channel 33: Block 331: tapered structure 34: The first seal 35: second seal 36: third seal 40: Motor 41: Rotor 412: Bearing 414: permanent magnet 415: Guard 42: stator 421: Winding 422: circuit board 43: central axis 44: Gasket 50: impeller 60: second shell

Figure 1 shows a perspective view of a thin pump according to an embodiment of the present invention;

Figure 2 shows a three-dimensional exploded view of the first housing and partition of a thin pump according to an embodiment of the present invention;

Figure 3 shows a three-dimensional exploded view of the first casing, the partition and the second casing of the thin pump according to an embodiment of the present invention;

Fig. 4 shows a perspective exploded view of a second housing and a partition of a thin pump according to an embodiment of the present invention;

Figure 5 shows a three-dimensional exploded view of a motor, a partition and a second housing of a thin pump according to an embodiment of the present invention;

Figure 6 shows a partial cross-sectional schematic view of a thin pump according to an embodiment of the present invention;

Figure 7 shows a perspective view of a thin pump according to another embodiment of the present invention;

Figure 8 shows a perspective exploded view of the first housing and partition of a thin pump according to another embodiment of the present invention;

Figure 9 shows a partial cross-sectional view of a thin pump according to another embodiment of the present invention; and

Fig. 10 shows a schematic cross-sectional view of a thin pump according to another embodiment of the present invention.

1: Thin pump

10: The first shell

12: Runner groove

13: cover

14: First side

20: divider

21: The first chamber

23: first side

25: entrance

26: Exit

27: The first end face

28: second end face

31: First channel

32: second channel

33: Block

34: The first seal

35: second seal

60: second shell

Claims (32)

A thin type pump, comprising: a first housing with a flow channel, a flow channel groove and a cover plate, the cover plate is arranged on the flow channel groove to form the flow channel; a partition having a first A chamber and a second chamber, the first chamber communicates with the flow channel; a motor having a rotor and a stator, the rotor is arranged in the first chamber, and the stator is arranged in the second chamber; a The impeller is connected to the rotor and is arranged in the first chamber; and a second casing is arranged on one side of the second chamber of the partition. Such as the thin pump of claim 1, wherein the partition further includes an inlet, an outlet, a first end face and a second end face, the inlet is arranged on the first end face, and the outlet is arranged on the second end face. For example, the thin pump of claim 2, wherein the partition further includes a first passage communicating with the inlet and the flow passage, and the first passage gradually expands from the inlet to the flow passage. Such as the thin pump of claim 3, wherein the partition further includes a second channel communicating with the outlet and the first chamber, and the second channel is tapered from the first chamber to the outlet . For example, the thin pump of claim 4, wherein the partition further includes a block disposed in the second channel, and the block has a tapered structure. For example, the thin pump of claim 1, wherein the first housing further includes a first surface and a second surface, the first surface has a notch, the flow channel groove is arranged at the relative position of the notch, the The cover plate is used to close the notch. Such as the thin pump of claim 6, wherein the cover plate is combined with the first housing by laser welding to close the notch. Such as the thin pump of claim 6, wherein the cover plate further includes a first shaft seat for fixing a central shaft. A thin pump includes: a first housing with a flow channel, two opposite side walls and a groove plate, the groove plate is arranged on the two opposite side walls to form the flow channel; a partition with a first cavity Chamber and a second chamber, the first chamber communicates with the flow channel; a motor having a rotor and a stator, the rotor is arranged in the first chamber, the stator is arranged in the second chamber; an impeller , Connected to the rotor, and arranged in the first chamber; and a second housing, arranged on one side of the second chamber of the partition. For example, the thin pump of claim 9, wherein the first housing further includes a first surface and a second surface, the two opposite side walls are arranged on the second surface, and the groove plate is used to connect the two opposite side walls. Such as the thin pump of claim 10, wherein the groove plate is connected to the two opposite side walls by laser welding. Such as the thin pump of claim 10, wherein the second surface further includes a first shaft seat for fixing a central shaft. For example, the thin pump of claim 1 or 9, wherein the motor further includes a central shaft and at least one washer, the rotor has a bearing and a permanent magnet, the bearing is arranged at the center of the impeller, and the central shaft is arranged on the In the bearing, the at least one gasket is sleeved on the central shaft, and the permanent magnet is arranged on one side of the impeller. Such as the thin pump of claim 13, wherein the bearing is covered when the impeller is injection molded. Such as the thin pump of claim 13, wherein the bearing is tightly coupled to the center of the impeller. Such as the thin pump of claim 13, wherein the first chamber includes a first tank for accommodating the impeller. Such as the thin pump of claim 13, wherein the first chamber further includes a second chamber for accommodating the permanent magnet. Such as the thin pump of claim 17, wherein the second tank chamber further includes a second shaft seat for fixing the central shaft. Such as the thin pump of claim 13, wherein the at least one gasket includes two gaskets, and the two gaskets are respectively tightly coupled to the two ends of the central shaft. Such as the thin pump of claim 19, wherein the two gaskets are tightly coupled to a first shaft seat and a second shaft seat, respectively. For the thin pump of claim 13, the rotor further includes a protective member covering the permanent magnet. Such as the thin pump of claim 1 or 9, wherein the stator has a winding and a circuit board, and the winding is electrically connected to the circuit board. Such as the thin pump of claim 22, wherein the second chamber includes a third slot chamber, which is in the shape of a circular ring for accommodating the winding. Such as the thin pump of claim 22, wherein the second chamber further includes a fourth chamber for accommodating the circuit board. Such as the thin pump of claim 1 or 9, wherein the partition further includes a first sealing member disposed on the periphery of the first chamber. Such as the thin pump of claim 1 or 9, wherein the partition further includes a first side surface and a first side surface On two sides, the first cavity is arranged on the first side, and the second cavity is arranged on the second side. Such as the thin pump of claim 26, wherein the partition further includes a second sealing member disposed on the periphery of the first side surface. Such as claim 26 type pump, wherein the partition further includes a third sealing member arranged on the periphery of the second side surface. Such as the thin pump of claim 1 or 9, wherein the first casing further includes a covering portion for covering the first chamber. For example, the thin pump of claim 1 or 9, wherein the first housing and the partition are made of metal material, and the first housing and the partition are joined by laser welding. For example, the thin pump of claim 1 or 9, wherein the second housing and the partition are made of metal material, and the second housing and the partition are joined by laser welding. For example, the thin pump of claim 1 or 9, wherein the first shell and the second shell system are made of metal material, and the first shell and the second shell are combined by laser welding.

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