Balance-adjustable inner rotor installed in water pump

Abstract

A balance-adjustable inner rotor installed in a water pump is installed in a shell of the water pump, a stator is arranged in the shell, and the balance-adjustable inner rotor installed in the water pump comprises a base body, a rotor body, a rotor body and a rotor body, the base body is used for an impeller to be arranged below the base body; the magnetic ring is fixedly arranged on the seat body, and the magnetic ring is provided with a peripheral surface; the plastic sleeve ring is fixedly arranged and wraps the peripheral surface of the magnetic ring, the plastic sleeve ring is provided with a plurality of accommodating parts with upward openings, and the plurality of accommodating parts are annularly arranged along the plastic sleeve ring relative to the seat body; and each accommodating part can be used for accommodating a bolt.

Description

Technical Field

[0001] The invention relates to a water pump, in particular to an inner rotor installed in the water pump and capable of adjusting balance. Background Art

[0002] World patent WO 2022 / 074906 discloses a technology for setting a counterweight block on the top of a rotor. The technical content disclosed in this case mainly uses an arc-shaped sheet to lock it on the rotor through a locking piece, and uses the weight and shape of the arc-shaped sheet to add weight at a certain angle position of the rotor to achieve the effect of counterweight, thereby making the rotor balanced and reducing vibration during rotation.

[0003] The above-mentioned technology is not convenient in adjusting the balance, because the arc-shaped piece is locked by a locking member, so the arc-shaped piece is exposed on the top of the rotor. In this way, when the rotor is set in the stator, if there is not enough space above the rotor, the arc-shaped piece is likely to collide with the structure related to the inner wall of the stator, thereby causing wear or damage. Therefore, the problem of the exposed and easily damaged counterweight needs to be solved. Summary of the invention

[0004] The main purpose of the present invention is to provide an inner rotor installed in a water pump with adjustable balance, which can use bolts to counterweight the inner rotor to achieve balance, and the inner rotor can be screwed in or out by means of the threads of the bolts themselves, thereby facilitating the insertion or removal of the bolts, thereby achieving an effect of easy adjustment of balance.

[0005] In order to achieve the above-mentioned purpose, the present invention proposes an inner rotor with adjustable balance installed in a water pump, which is installed in a housing of a water pump, and a stator is arranged in the housing. The inner rotor with adjustable balance installed in the water pump includes: a seat body for arranging an impeller below the seat body; a magnetic ring fixedly mounted on the seat body, the magnetic ring having an outer peripheral surface; and a plastic sleeve ring fixedly mounted and covering the outer peripheral surface of the magnetic ring, and the plastic sleeve ring has a plurality of accommodating portions with openings facing upward, and the plurality of accommodating portions are arranged in a ring shape along the plastic sleeve ring relative to the seat body; wherein each of the accommodating portions can be used to accommodate a bolt.

[0006] The above-mentioned inner rotor with adjustable balance installed in the water pump, wherein: the plastic ring has a shoulder ring extending inward from the top, the magnetic ring has an upper surface, the shoulder ring is located above the upper surface of the magnetic ring, and the multiple accommodating portions are arranged on the shoulder ring.

[0007] The above-mentioned inner rotor with adjustable balance installed in the water pump, wherein: the shoulder ring and the plastic sleeve ring are formed in one piece and are also made of plastic material.

[0008] The above-mentioned inner rotor with adjustable balance installed in the water pump, wherein: the inner wall of each accommodating portion is flat.

[0009] The above-mentioned inner rotor with adjustable balance installed in the water pump, wherein: the length of a bolt used to be placed in an accommodating portion is not longer than the depth of each accommodating portion, and is completely located in each accommodating portion in which it is placed, and the top end does not exceed the top of each accommodating portion.

[0010] The above-mentioned inner rotor with adjustable balance installed in the water pump, wherein: the number of the plurality of accommodating portions is not less than eight.

[0011] Thus, the present invention can insert bolts through the multiple receiving parts to provide counterweights to achieve a balancing effect, and can screw in or out of the multiple receiving parts of the plastic ring through the threads of the bolts themselves, making it very convenient to insert or remove bolts, thereby achieving an effect of easy adjustment of balance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of a preferred embodiment of the present invention.

[0013] Figure 2 It is an exploded view of a preferred embodiment of the present invention.

[0014] Figure 3 It is a top view of a preferred embodiment of the present invention.

[0015] Figure 4 For along Figure 3 Sectional view along line 4-4.

[0016] Figure 5 It is a schematic diagram of the operation of a preferred embodiment of the present invention.

[0017] Figure 6 The figure is a cross-sectional view after assembly of a preferred embodiment of the present invention.

[0018] Wherein, the reference numerals are:

[0019] 10: The inner rotor with adjustable balance installed in the water pump

[0020] 11: base body

[0021] 21: Magnetic ring

[0022] 22: Outer surface

[0023] 24: Upper surface

[0024] 31: Plastic ring

[0025] 311: Shoulder ring

[0026] 32: Accommodation

[0027] 81: Bolt

[0028] 91: Water Pump

[0029] 92: Shell

[0030] 94: Stator

[0031] 96: Impeller DETAILED DESCRIPTION

[0032] In order to explain the technical features of the present invention in detail, the following preferred embodiments are given and described in conjunction with the accompanying drawings, wherein:

[0033] like Figures 1 to 6 As shown, a preferred embodiment of the present invention provides an inner rotor 10 installed in a water pump with adjustable balance, which is mainly installed in a housing 92 of a water pump 91. The housing 92 has a stator 94. The inner rotor 10 installed in the water pump with adjustable balance (hereinafter referred to as the inner rotor 10) is mainly composed of a seat 11, a magnetic ring 21 and a plastic sleeve ring 31, wherein:

[0034] The base body 11 is used for an impeller 96 to be disposed on the base body 11 and located below the base body 11. In this embodiment, since the impeller 96 can be formed integrally with the base body 11, it is shown together in the drawings.

[0035] The magnetic ring 21 is fixed to the base 11 . The magnetic ring 21 has an outer peripheral surface 22 and an upper surface 24 .

[0036] The plastic collar 31 is fixedly mounted and covered on the outer peripheral surface 22 of the magnetic ring 21, and the plastic collar 31 has a plurality of accommodating portions 32 with openings facing upward, and the plurality of accommodating portions 32 are arranged in a ring along the plastic collar 31 relative to the seat body 11. In the present embodiment, the plastic collar 31 has a shoulder ring 311 extending inward from the top, and the shoulder ring 311 is located above the upper surface 24 of the magnetic ring 21, and the plurality of accommodating portions 32 are arranged on the shoulder ring 311. In addition, the shoulder ring 311 and the plastic collar 31 are integrally formed and are also made of plastic material. The inner wall of each accommodating portion 32 is flat. The plurality of accommodating portions 32 are 24 in number and are equiangularly distributed, and the plurality of accommodating portions 32 can be perforated or grooved. In principle, the more the plurality of receiving portions 32 are, the better, so that the balance state that can be adjusted can be more precise and the effect of adjusting the balance can be achieved more accurately.

[0037] Each of the receiving portions 32 can be used to accommodate a bolt 81. For ease of operation, a bolt 81 with a transverse groove on the top can be selected to facilitate the driving and rotating of a screwdriver (not shown). In this embodiment, when a bolt 81 is placed in each of the receiving portions 32, it can be directly inserted or forced to be screwed in, so that the thread of the bolt 81 itself acts on or interferes with the groove wall of the receiving portion 32. When the bolt 81 is to be taken out, the bolt 81 is driven by a screwdriver to be screwed out through the thread. In addition, the length of each of the bolts 81 is not longer than the depth of the receiving portion 32, so as to avoid penetrating the bottom of the receiving portion 32, thereby avoiding damage to the surface of the magnetic ring 21, and also keeping each of the bolts 81 completely located in each of the receiving portions 32 where it is placed, and the top does not exceed the top of each of the receiving portions 32.

[0038] The structure of this embodiment has been described above, and the operation state of this embodiment will be described next.

[0039] like Figure 5 As shown, when the balance state of the inner rotor 10 is to be adjusted, the angle position where the counterweight needs to be added is first found on the inner rotor 10, which can be found using a balancing instrument (not shown). Then, a bolt 81 is set in one of the receiving portions 32 corresponding to the angle position, thereby completing the addition of the counterweight. If the setting position of the bolt 81 is to be changed, the bolt 81 can be screwed out by a motor acting on the bolt 81, and then the bolt 81 is placed in another receiving portion 32, thereby completing the change of the setting position of the bolt 81.

[0040] like Figure 6 As shown, after the balancing is completed, the inner rotor 10 can be assembled in the housing 92 of the water pump 91 and located in the stator 94. After assembling the impeller 96 and other structures correspondingly set by the industry according to the situation, a complete and rotatable water pump 91 is formed.

[0041] As can be seen from the above, the plurality of receiving portions 32 of the present invention can be used to insert the bolts 81, so as to counterweight the inner rotor 10 to achieve balance. In addition, the present invention can also screw in or out each of the receiving portions 32 by means of the threads of the bolts 81 themselves, which is equivalent to screwing in or out the inner rotor 10. For the user, it is very convenient to insert or remove the bolts 81, so as to achieve the effect of easily adjusting the balance of the inner rotor 10.

[0042] The above description is merely the content of the present invention illustrated by the embodiments, and cannot be used to limit the scope of protection of the claims of the present invention. Any simple changes or equivalent implementations made according to the scope of protection of the claims of the present invention and the contents of the patent specification shall be covered by the scope of protection of the claims of the present invention.

Claims

1. An inner rotor with adjustable balance installed in a water pump, characterized in that: Installed in a housing of a water pump, the housing has a stator, and the inner rotor installed in the water pump and capable of adjusting balance comprises: A seat body, for an impeller to be arranged below the seat body; A magnetic ring, fixedly mounted on the base, the magnetic ring having an outer peripheral surface; and A plastic sleeve, fixedly mounted on and covering the outer peripheral surface of the magnetic ring, and the plastic sleeve has a plurality of accommodating portions with openings facing upwards, and the plurality of accommodating portions are arranged in a ring shape along the plastic sleeve relative to the base body; Each of the receiving portions can be used to receive a bolt.

2. The inner rotor with adjustable balance installed in a water pump according to claim 1, characterized in that: in: The plastic sleeve ring has a shoulder ring extending inward from the top, the magnetic ring has an upper surface, the shoulder ring is located above the upper surface of the magnetic ring, and the plurality of accommodating portions are arranged on the shoulder ring.

3. The inner rotor with adjustable balance installed in a water pump according to claim 1, characterized in that: in: The shoulder ring is integrally formed with the plastic sleeve ring and is also made of plastic material.

4. The inner rotor with adjustable balance installed in a water pump according to claim 1, characterized in that: in: The inner wall of each accommodating portion is flat.

5. The inner rotor with adjustable balance installed in a water pump according to claim 1, characterized in that: in: The length of a bolt used for being inserted into a receiving portion is not longer than the depth of each receiving portion, and the bolt is completely located in each receiving portion in which the bolt is inserted, and the top end does not exceed the top of each receiving portion.

6. The inner rotor with adjustable balance installed in a water pump according to claim 1, characterized in that: in: The number of the plurality of accommodating portions is not less than eight.

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