Stator core and motor

Abstract

The stator core comprises a motor shell assembly, the motor shell assembly comprises a plurality of motor shell bodies, the bottom ends of the motor shell bodies are fixedly connected with a lower connecting ring, the lower connecting ring is provided with a plurality of clamping grooves and two positioning holes, the top ends of the motor shell bodies are fixedly connected with an upper connecting ring, and the upper connecting ring is provided with a plurality of clamping grooves and two positioning holes. A plurality of clamping blocks and two positioning rods are fixedly connected to the top of the upper connecting ring, the clamping block of one motor shell body is connected with the clamping groove of the other motor shell body in a clamped mode, the positioning rod of one motor shell body is connected with the positioning hole of the other motor shell body in an inserted mode, and the lower connecting ring and the upper connecting ring are each provided with a plurality of connecting holes. The clamping block and the clamping groove of the anti-rotation structure are arranged on the lower connecting ring and the upper connecting ring correspondingly, so that the use thickness of the motor shell can be prevented from being reduced, and the impact resistance of the motor shell is prevented from being affected when the submersible pump is used.

Description

Technical Field

[0001] This invention relates to the field of submersible motor technology, and in particular to a stator core and motor. Background Technology

[0002] Currently, submersible pumps for wells are pumping devices used to transport groundwater to the surface or a designated location. During the use of submersible pumps, the motor casing inside the pump must be kept fixed and cannot rotate with the rotor. Otherwise, it will affect the pump's hydraulic performance, or even shorten the pump's lifespan or prevent it from working properly.

[0003] Among them, a search revealed Chinese patent CN214007583U, which discloses a stator core and motor. The aforementioned patent uses a structure in which an anti-rotation block is snapped into an anti-rotation groove to achieve the function of preventing rotation when the motor housing is stacked and assembled. However, since both the anti-rotation block and the anti-rotation groove are set on the outer wall of the end of the motor housing, the thickness of the motor housing is reduced, which affects the impact resistance of the motor housing when the submersible pump is used. Therefore, in order to advance the industry's technology, better realize the anti-rotation function of the motor housing, and improve the core technology competitiveness, this application proposes a new implementation scheme that is different from the anti-rotation structure and application method of the motor housing in the prior art. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the existing anti-rotation structure of motor housing affects the impact resistance of the motor housing when the submersible pump is used, and to propose a stator core and motor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A stator core and a motor are disclosed, comprising a motor housing assembly. The motor housing assembly includes multiple motor housing bodies. A lower connecting ring is fixedly connected to the bottom end of each motor housing body. The lower connecting ring has multiple slots and two positioning holes. An upper connecting ring is fixedly connected to the top end of each motor housing body. Multiple locking blocks and two positioning rods are fixedly connected to the top of the upper connecting ring. The locking blocks of one motor housing body engage with the slots of another motor housing body, and the positioning rods of one motor housing body insert into the positioning holes of another motor housing body.

[0006] Furthermore, both the lower connecting ring and the upper connecting ring are provided with multiple connecting holes, and connecting bolts are inserted between the connecting holes on the lower connecting ring of one motor housing body and the connecting holes on the upper connecting ring of the other motor housing body.

[0007] Furthermore, an outer sealing gasket is provided between the lower connecting ring and the upper connecting ring.

[0008] Furthermore, the bottom of the motor housing body is provided with a lower slot, and a connecting ring is fixedly connected to the top of the motor housing body. The connecting ring of one motor housing body is engaged with the lower slot of another motor housing body.

[0009] Furthermore, an upper inner sealing gasket is bonded to the top of the connecting ring, and a lower inner sealing gasket is bonded to the bottom of the motor housing body, with the lower inner sealing gasket in contact with the upper inner sealing gasket.

[0010] Furthermore, the outer circumferential wall of the motor housing is fixedly connected with multiple connecting ribs, and the other ends of the multiple connecting ribs are fixedly connected to the lower connecting ring and the upper connecting ring respectively.

[0011] The beneficial effects of this invention are as follows: 1. By setting the anti-rotation structure's locking blocks and slots on the lower and upper connecting rings respectively, the thickness of the motor housing can be prevented from being reduced, thus avoiding affecting the impact resistance of the motor housing during submersible pump operation.

[0012] 2. When multiple motor housing bodies are assembled together, the locking block engages with the locking slot, thereby preventing the rotation of the motor housing body and ensuring the normal operation of the submersible pump.

[0013] 3. By setting the lower inner sealing gasket to contact the upper inner sealing gasket, the connection between multiple motor housing bodies is sealed, thereby preventing water leakage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the connection state of the stator core and motor housing assembly of the motor proposed in this invention; Figure 2 This is a three-dimensional structural diagram of a stator core and motor housing body proposed in this invention; Figure 3 This is a three-dimensional structural diagram of the left side of the motor housing body of the stator core and motor proposed in this invention; Figure 4 This is a three-dimensional structural diagram of the right side of the cross-sectional view of the motor housing body of the stator core and motor proposed in this invention. Figure 5 This is a schematic diagram of the main cross-sectional view of the connection state of the stator core and the motor housing body of the motor proposed in this invention. Figure 6 This is a partial cross-sectional view of the connection between the stator core and the motor housing body of the motor proposed in this invention.

[0015] In the diagram: 1. Motor housing assembly; 2. Motor housing body; 3. Lower connecting ring; 4. Slot; 5. Positioning hole; 6. Upper connecting ring; 7. Locking block; 8. Positioning rod; 9. Connecting hole; 10. Outer sealing gasket; 11. Lower groove; 12. Connecting ring; 13. Upper inner sealing gasket; 14. Lower inner sealing gasket; 15. Connecting rib; 16. Connecting bolt. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] Reference Figures 1-6 A stator core and motor are disclosed, comprising a motor housing assembly 1, which includes multiple motor housing bodies 2. A lower connecting ring 3 is welded to the bottom end of each motor housing body 2. The lower connecting ring 3 has multiple slots 4 and two positioning holes 5. An upper connecting ring 6 is welded to the top end of each motor housing body 2. Multiple locking blocks 7 and two positioning rods 8 are welded to the top of the upper connecting ring 6. The locking blocks 7 of one motor housing body 2 engage with the slots 4 of another motor housing body 2 to prevent rotation of the motor housing body 2. The positioning rods 8 of one motor housing body 2 are inserted into the positioning holes 5 of another motor housing body 2. By inserting the positioning rods 8 of one motor housing body 2 into the positioning holes 5 of another motor housing body 2, multiple motor housing bodies 2 are assembled together.

[0018] Both the lower connecting ring 3 and the upper connecting ring 6 are provided with multiple connecting holes 9. A connecting bolt 16 is inserted between the connecting hole 9 on the lower connecting ring 3 of one motor housing body 2 and the connecting hole 9 on the upper connecting ring 6 of another motor housing body 2. The connecting bolt 16 is passed through the connecting holes 9 of the upper and lower motor housing bodies 2 to fix the assembly of multiple motor housing bodies 2. An outer sealing gasket 10 is provided between the lower connecting ring 3 and the upper connecting ring 6. The bottom of the motor housing body 2 is provided with a lower groove 11. A connecting ring 12 is welded to the top of the motor housing body 2. The connecting ring 12 of one motor housing body 2 is connected to the connecting hole 9 on the upper connecting ring 6 of another motor housing body 2. The lower slot 11 of the motor housing body 2 is snapped in, thereby strengthening the connection between multiple motor housing bodies 2. An upper inner sealing gasket 13 is bonded to the top of the connecting ring 12, and a lower inner sealing gasket 14 is bonded to the bottom of the motor housing body 2. The lower inner sealing gasket 14 contacts the upper inner sealing gasket 13, thereby sealing the connection between multiple motor housing bodies 2 and preventing water leakage. Multiple connecting ribs 15 are welded to the outer circumference of the motor housing body 2. The other ends of the multiple connecting ribs 15 are fixedly connected to the lower connecting ring 3 and the upper connecting ring 6 respectively, thereby strengthening the connection between the lower connecting ring 3 and the upper connecting ring 6.

[0019] The working principle of this embodiment is as follows: In use, firstly, the positioning rod 8 of one motor housing body 2 is inserted into the positioning hole 5 of another motor housing body 2, thereby assembling multiple motor housing bodies 2 together. At the same time, the connecting ring 12 is engaged with the lower slot 11 to strengthen the connection between multiple motor housing bodies 2, and the locking block 7 is engaged with the locking slot 4 to prevent the rotation of the motor housing body 2. Then, the connecting bolt 16 is passed through the connecting hole 9 of the upper and lower motor housing bodies 2 to fix the assembly of multiple motor housing bodies 2.

[0020] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A stator core and a motor, comprising a motor housing assembly (1), characterized in that, The motor housing assembly (1) includes multiple motor housing bodies (2). A lower connecting ring (3) is fixedly connected to the bottom end of the motor housing body (2). The lower connecting ring (3) is provided with multiple slots (4) and two positioning holes (5). An upper connecting ring (6) is fixedly connected to the top end of the motor housing body (2). Multiple locking blocks (7) and two positioning rods (8) are fixedly connected to the top of the upper connecting ring (6). The locking block (7) of one motor housing body (2) engages with the slot (4) of another motor housing body (2), and the positioning rod (8) of one motor housing body (2) is inserted into the positioning hole (5) of another motor housing body (2).

2. The stator core and motor according to claim 1, characterized in that, Both the lower connecting ring (3) and the upper connecting ring (6) are provided with multiple connecting holes (9). A connecting bolt (16) is inserted between the connecting hole (9) on the lower connecting ring (3) of one motor housing body (2) and the connecting hole (9) on the upper connecting ring (6) of the other motor housing body (2).

3. The stator core and motor according to claim 1, characterized in that, An outer sealing gasket (10) is provided between the lower connecting ring (3) and the upper connecting ring (6).

4. A stator core and motor according to claim 1, characterized in that, The bottom of the motor housing body (2) is provided with a lower slot (11), and a connecting ring (12) is fixedly connected to the top of the motor housing body (2). The connecting ring (12) of one motor housing body (2) is engaged with the lower slot (11) of the other motor housing body (2).

5. A stator core and motor according to claim 4, characterized in that, The top of the connecting ring (12) is bonded with an upper inner sealing gasket (13), and the bottom of the motor housing body (2) is bonded with a lower inner sealing gasket (14), with the lower inner sealing gasket (14) in contact with the upper inner sealing gasket (13).

6. A stator core and motor according to claim 1, characterized in that, The outer circumferential wall of the motor housing body (2) is fixedly connected with multiple connecting ribs (15), and the other ends of the multiple connecting ribs (15) are fixedly connected to the lower connecting ring (3) and the upper connecting ring (6) respectively.

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