TW201934234A - Rust-proof rotor of magnetic part and motor structure using the same including a lining, a shell, the magnetic part, an upper sealing ring and a lower sealing ring - Google Patents

Abstract

This invention relates to a rust-proof rotor of a magnetic part and a motor structure using the same. The rust-proof rotor of the magnetic part includes a lining, a shell, a magnetic part, an upper sealing ring and a lower sealing ring. The shell is annularly arranged at the periphery of the lining. The magnetic part is arranged between the lining and the shell. The upper sealing ring is arranged above the magnetic part and is engaged to the lining and the shell. The lower sealing ring is arranged below the magnetic part and is engaged to the lining and the shell.

Description

Anti-rust rotor for magnetic parts and motor structure using the same

The invention relates to a rust-proof rotor for magnetic parts and a motor structure using the same.

Most of the rotor magnets in the motor structure of the conventional water pump use ferrite, so they can be directly immersed in water. However, when the performance of the ferrite rotor magnet does not meet the requirements, it is necessary to switch to a rotor magnet made of rare earth materials. However, although such rotor magnets have high performance, they are susceptible to rust when immersed in water.

Therefore, it is necessary to provide an innovative and progressive motor structure and its rust-proof rotor of magnetic parts to solve the above problems.

In one embodiment, a rust-proof rotor of a magnetic member includes an inner liner, a housing, a magnetic member, an upper seal ring and a lower seal ring. The outer ring is provided on the periphery of the inner lining. The magnetic member is disposed between the inner liner and the outer shell. The upper seal ring is disposed above the magnetic member, and the upper seal ring is joined to the inner liner and the outer shell. The lower seal ring is disposed below the magnetic member, and the lower seal ring is joined to the inner liner and the outer shell.

In one embodiment, a motor structure uses a magnetic rust-proof rotor as described above.

FIG. 1 shows an exploded perspective view of the motor structure of the present invention. FIG. 2 is a perspective assembled view of a motor structure according to the present invention. Fig. 3 shows a cross-sectional view of the motor structure of the present invention taken along the line A-A in Fig. 2. With reference to FIG. 1, FIG. 2, and FIG. 3, the motor structure 1 of the present invention includes a first cover 10, a pivot 20, a rust-proof rotor 30 with a magnetic member, a sealing cover 40, a stator 50, and a second盖 体 60。 Cover body 60.

The first cover 10 has a shaft base 10P, a water inlet portion 101 and a water outlet portion 102. The position of the water outlet portion 102 is lower than the position of the water inlet portion 101.

The pivot 20 is disposed on the shaft seat 10P of the first cover 10.

FIG. 4 shows an enlarged view of a partial area B of FIG. 3. Fig. 5 shows a perspective sectional view of a rust-proof rotor of a magnetic member according to the present invention. With reference to FIG. 3, FIG. 4 and FIG. 5, the magnetic piece rust-proof rotor 30 is sleeved on the pivot shaft 20, and the magnetic piece rust-proof rotor 30 includes a lining 31, a housing 32, a magnetic piece 33, a The upper seal ring 34 and the lower seal ring 35.

The lining 31 has a hollow cylindrical shape, and the lining 31 has a first upper end portion 311, a first lower end portion 312, and an outer wall surface 31S. The first lower end portion 312 is opposite to the first upper end portion 311. The outer wall surface 31S extends between the first upper end portion 311 and the first lower end portion 312. Preferably, the inner lining 31 is a magnetically permeable lining to improve the transmission of magnetic force.

The outer shell 32 is arranged around the periphery of the inner lining 31. The casing 32 is a hollow cylinder, and the casing 32 has a second upper end portion 321, a second lower end portion 322, and an inner wall surface 32S. The second lower end portion 322 is opposite to the second upper end portion 321. The inner wall surface 32S extends between the second upper end portion 321 and the second lower end portion 322.

The magnetic member 33 is disposed between the inner liner 31 and the outer shell 32. The magnetic member 33 has an upper surface 33A and a lower surface 33B. In one embodiment, the magnetic member 33 may include a plurality of magnets.

The upper seal ring 34 is disposed above the magnetic member 33, and preferably, the upper seal ring 34 contacts the upper surface 33A of the magnetic member 33. In addition, the upper seal ring 34 is joined to the inner lining 31 and the outer shell 32, and preferably, the upper seal ring 34 is welded to the inner lining 31 and the outer shell 32, and the above welding and joining method is a circular laser Welding is preferred.

The upper seal ring 34 has a U-shaped cross section, and the upper seal ring 34 has a ring groove 34U and an upper end portion 34E. Preferably, the upper end portion 34E is welded to the outer wall surface 31S of the inner liner 31. And the inner wall surface 32S of the casing 32. Referring to FIG. 9, it is a schematic diagram showing that the upper seal ring, the inner lining and the shell are integrally formed according to the present invention. In the embodiment of FIG.

The lower seal ring 35 is disposed below the magnetic member 33, and preferably, the lower seal ring 35 contacts the lower surface 33B of the magnetic member 33. In addition, the lower seal ring 35 is joined to the inner lining 31 and the outer shell 32, and preferably, the lower seal ring 35 is welded to the inner lining 31 and the outer shell 32, and the above welding and joining method is a circular laser Welding is preferred.

The cross section of the lower seal ring 35 is U-shaped, and the lower seal ring 35 has a ring groove 35U and a lower end portion 35E. Preferably, the lower end portion 35E is welded to the outer wall surface 31S of the inner liner 31 And the inner wall surface 32S of the casing 32. Referring to FIG. 10, it is a schematic diagram showing the lower seal ring, the inner liner, and the shell of the present invention are integrally formed. In the embodiment of FIG. 10, the lower seal ring 35, the inner liner 31 and the outer shell 32 are integrally formed.

FIG. 6 shows a schematic diagram of filling the air-filling hole with the sealing material of the present invention. With reference to FIGS. 4, 5 and 6, in this embodiment, the inner lining 31, the outer shell 32, the upper seal ring 34 and the lower seal ring 35 form a closed space S, and preferably, the The inner liner 31, the outer shell 32, the upper seal ring 34 and the lower seal ring 35 are made of a metal material. In this embodiment, the upper sealing ring 34 may have an air-filling hole 34H, which is located in the ring groove 34U, and the air-filling hole 34H communicates with the closed space S for filling the air to confirm the existence of the closed space S leakage. After confirming that there is no leakage, a sealing material 70 can be filled in the filling hole 34H to completely seal the closed space S. In addition, the filling hole 34H can also be used for positioning or fixing. Alternatively, in another embodiment, the filling hole may be provided in the lower seal ring 35.

FIG. 7 is a perspective sectional view of a rust-proof rotor of a magnetic member according to another embodiment of the present invention. With reference to FIGS. 5 and 7, in order to effectively reduce the height of the rust-proof rotor 30 of the magnetic member to achieve the effect of thinning the motor structure 1, the upper end portion 34E of the upper seal ring 34 does not protrude from the inner lining 31. The first upper end portion 311 and the second upper end portion 321 of the housing 32, and the lower end portion 35E of the lower seal ring 35 does not protrude from the first lower end portion 312 of the lining 31 and the housing 32 This second lower end portion 322. And preferably, the upper end portion 34E of the upper seal ring 34 is flush with the first upper end portion 311 of the lining 31 and the second upper end portion 321 of the housing 32, and the lower end portion of the lower seal ring 35 35E flushes the first lower end portion 312 of the inner lining 31 and the second lower end portion 322 of the outer casing 32.

Referring to FIG. 8, it is a perspective sectional view showing a rust-proof rotor of a magnetic member according to another embodiment of the present invention. In another embodiment, the upper end portion 34E of the upper seal ring 34 can protrude from the first upper end portion 311 of the lining 31 and the second upper end portion 321 of the outer casing 32, and the lower seal ring 35 The lower end portion 35E can protrude from the first lower end portion 312 of the lining 31 and the second lower end portion 322 of the outer casing 32. According to the above design, the upper seal ring 34 has an inner ring wall 341 and an outer ring wall 342. The inner ring wall 341 is welded to the first upper end portion 311 of the lining 31. The outer ring wall 342 is welded. The second upper end portion 321 of the casing 32 is engaged. Corresponding to the above configuration of the upper seal ring 34, the lower seal ring 35 also has an inner ring wall 351 and an outer ring wall 352, and the inner ring wall 351 is welded to the first lower end portion 312 of the inner lining 31 The outer ring wall 352 is welded to the second lower end portion 322 of the casing 32.

Referring again to FIGS. 1, 2 and 3, the sealing cover 40 is coupled to the first cover body 10. The sealing cover 40 has an accommodating portion 40U, and the accommodating portion 40U is used for accommodating the magnetic rust-proof rotor 30.

The stator 50 is disposed on the periphery of the receiving portion 40U of the sealing cover 40. In this embodiment, the stator 50 is electrically connected to a control circuit board 80.

The second cover body 60 is coupled to the sealing cover 40 to seal the stator 50 and the control circuit board 80, so as to prevent the stator 50 and the control circuit board 80 from contacting water and short circuiting.

Referring again to FIG. 3 and FIG. 5, the magnetic member rust-proof rotor 30 of the present invention can effectively seal the magnetic member 33 to prevent the magnetic member 33 from rusting due to contact with water. In addition, the magnetic antirust rotor 30 can be combined with an impeller 90 so that the motor structure 1 constitutes a water pump.

The motor structure 1 of the present invention is a motor structure used in a water pump as an example, but is not limited thereto. The motor structure 1 and the magnetic rust-proof rotor 30 of the present invention are suitable for any type of magnetic parts that need to be rust-proofed. motor.

The above embodiments are only for explaining the principle of the present invention and its effects, and not for limiting the present invention. Therefore, those skilled in the art can modify and change the above embodiments without departing from 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‧‧‧ Motor structure

10‧‧‧ the first cover

101‧‧‧Water inlet

102‧‧‧Water export department

10P‧‧‧Shaft

20‧‧‧ Pivot

30‧‧‧Magnetic antirust rotor

31‧‧‧lining

311‧‧‧first upper end

312‧‧‧first lower end

31S‧‧‧outer wall surface

32‧‧‧ shell

321‧‧‧second upper end

322‧‧‧ the second lower end

32S‧‧‧Inner wall surface

33‧‧‧Magnetic

33A‧‧‧Upper surface

33B‧‧‧ lower surface

34‧‧‧ Upper seal ring

341‧‧‧Inner ring wall

342‧‧‧outer wall

34E‧‧‧ Upper end

34H‧‧‧Filling hole

34U‧‧‧Ring groove

35‧‧‧ lower seal ring

351‧‧‧Inner ring wall

352‧‧‧outer wall

35E‧‧‧ lower end

35U‧‧‧Ring groove

40‧‧‧Sealing cover

40U‧‧‧accommodation department

50‧‧‧ stator

60‧‧‧second cover

70‧‧‧sealing material

80‧‧‧Control circuit board

90‧‧‧ Impeller

S‧‧‧ enclosed space

FIG. 1 shows an exploded perspective view of the motor structure of the present invention.

FIG. 2 is a perspective assembled view of a motor structure according to the present invention.

Fig. 3 shows a cross-sectional view of the motor structure of the present invention taken along the line A-A in Fig. 2.

FIG. 4 shows an enlarged view of a partial area B of FIG. 3.

Fig. 5 shows a perspective sectional view of a rust-proof rotor of a magnetic member according to the present invention.

FIG. 6 shows a schematic diagram of filling the air-filling hole with the sealing material of the present invention.

FIG. 7 is a perspective sectional view of a rust-proof rotor of a magnetic member according to another embodiment of the present invention.

FIG. 8 is a perspective sectional view of a rust-proof rotor of a magnetic member according to another embodiment of the present invention.

FIG. 9 is a schematic diagram showing the integral formation of the upper seal ring, the inner liner and the outer shell of the present invention.

FIG. 10 is a schematic diagram showing the lower seal ring, the inner liner and the outer shell of the present invention being integrally formed.

Claims (22)

A rust-proof rotor for a magnetic piece includes: an inner lining; a shell arranged on the periphery of the inner lining; a magnetic piece arranged between the inner lining and the shell; an upper seal ring arranged on the magnetic piece Above, and the upper seal ring is joined to the inner liner and the shell; and the lower seal ring is arranged below the magnetic piece, and the lower seal ring is joined to the inner liner and the shell. The rust-proof magnetic rotor of claim 1, wherein the inner liner, the outer shell, the upper seal ring and the lower seal ring form a closed space. The rust-proof rotor of magnetic parts as claimed in claim 2, wherein the upper sealing ring has an air-filling hole, and the air-filling hole communicates with the closed space. For example, the rust-proof rotor of the magnetic part of claim 3 further includes a sealing material, and the sealing material is filled in the filling hole. The rust-proof magnetic rotor of claim 3, wherein the upper seal ring has a ring groove, and the air-filling hole is located in the ring groove. The rust-proof rotor of magnetic parts as claimed in claim 1, wherein the upper seal ring is welded to the inner liner and the shell, and the lower seal ring is welded to the inner liner and the shell. The rust-proof rotor for magnetic parts according to claim 6, wherein the inner lining has an outer wall surface, the outer shell has an inner wall surface, the upper seal ring has an upper end portion, and the upper end portion is welded to the outer wall surface of the inner lining And the inner wall surface of the casing. The rust-proof magnetic rotor of claim 7, wherein the lining has a first upper end portion, the housing has a second upper end portion, and the upper end portion of the upper seal ring does not protrude from the first portion of the lining An upper end portion and the second upper end portion of the casing. The rust-proof magnetic rotor of claim 8, wherein the upper end portion of the upper seal ring is flush with the first upper end portion of the lining and the second upper end portion of the housing. The rust-proof magnetic rotor of claim 6, wherein the inner lining has an outer wall surface, the outer shell has an inner wall surface, the lower seal ring has a lower end portion, and the lower end portion is welded to the outer wall surface of the inner lining. And the inner wall surface of the casing. The rust-proof rotor of magnetic parts as claimed in claim 10, wherein the lining has a first lower end portion, the housing has a second lower end portion, and the lower end portion of the lower seal ring does not protrude from the first portion of the lining. A lower end portion and the second lower end portion of the casing. For example, the rust-proof magnetic rotor of claim 11, wherein the lower end portion of the lower seal ring is flush with the first lower end portion of the lining and the second lower end portion of the housing. The rust-proof magnetic rotor of claim 6, wherein the lining has a first upper end portion, the housing has a second upper end portion, the upper seal ring has an inner ring wall and an outer ring wall, and the inner ring wall It is welded to the first upper end of the inner liner, and the outer ring wall is welded to the second upper end of the outer shell. The rust-proof magnetic rotor of claim 13, wherein the upper seal ring has an upper end portion protruding from the first upper end portion of the lining and the second upper end portion of the housing. The rust-proof rotor of magnetic parts as claimed in claim 6, wherein the lining has a first lower end portion, the housing has a second lower end portion, the lower seal ring has an inner ring wall and an outer ring wall, and the inner ring A wall system is welded to the first lower end portion of the inner liner, and an outer ring wall system is welded to the second lower end portion of the housing. The rust-proof magnetic rotor of claim 15, wherein the lower seal ring has a lower end portion, and the lower end portion protrudes from the first lower end portion of the lining and the second lower end portion of the housing. The rust-proof magnetic rotor of claim 1, wherein the cross section of the upper seal ring and the lower seal ring is U-shaped. The rust-proof magnetic rotor of claim 1, wherein the inner lining is a magnetically permeable inner lining. For example, the rust-proof rotor of magnetic component of claim 1, wherein the magnetic component has an upper surface and a lower surface, the upper seal ring system contacts the upper surface, and the lower seal ring system contacts the lower surface. The rust-proof rotor of magnetic parts as claimed in claim 1, wherein the upper seal ring, the inner lining and the outer shell are integrally formed. For example, the rust-proof magnetic rotor of claim 1, wherein the lower seal ring, the inner lining and the outer shell are integrally formed. A motor structure using a magnetic member rust-proof rotor according to any one of claims 1 to 21.