Medical sterilizing pump motor

Abstract

The utility model provides a medical disinfection pump motor relates to motor seal field, this medical disinfection pump motor, including motor shell and axle body, the outer surface of axle body is connected with motor shell rotation, the inside of motor shell is provided with sealing mechanism, sealing mechanism includes static disc, the outer surface of static disc is fixedly connected with motor shell, the inner wall of static disc is connected with axle body rotation, the outer surface fixed connection of static disc has limit slip ring, the outer surface sliding connection of limit slip ring has dynamic disc, the inner wall of dynamic disc is fixedly connected with axle body. This medical disinfection pump motor passes sealing mechanism cooperation setting of spare part, to realize can carry out sealed drainage in the motor operation process, prevent its from the axle body gap seepage into the inside, and then avoid circuit short circuit, component corrosion etc. problem, significantly improve the waterproof performance and reliability of motor, prolong the service life and ensure the safe and stable of medical operation.

Description

Technical Field

[0001] This utility model relates to an electric motor, specifically a medical disinfection pump motor, belonging to the field of motor sealing technology. Background Technology

[0002] With people's pursuit of a healthy life, the demand in the medical market is constantly increasing. Medical disinfection pumps are gradually entering the public eye and becoming a market hotspot. Under the influence of the global pandemic, the demand for medical disinfection pumps has increased significantly, which has also spurred the rapid expansion of the medical disinfection pump market. The main function of a medical disinfection pump is to sterilize and disinfect solvents such as sodium hypochlorite. The disinfection pump needs to be equipped with a motor, whose main function is to connect to the pump head and drive the pump head to work.

[0003] Currently, the rotors of disinfection pumps used on the market are soaked in sodium hypochlorite as a solvent. During use, there are high and low temperature environments. The steel sleeve does not provide protection, and sodium hypochlorite leaks into the interior, coming into contact with the magnetic ring, causing the magnetic ring to rust and bulge. To address this issue, we provide a medical disinfection pump motor that solves the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved The purpose of this invention is to provide a medical disinfection pump motor to solve the above-mentioned problems, thereby addressing the issue of easy leakage in the prior art.

[0005] (II) Technical Solution This utility model is achieved through the following technical solution: a medical disinfection pump motor, including a motor housing and a shaft, the outer surface of the shaft and the motor housing being rotatably connected, a sealing mechanism being provided inside the motor housing, the sealing mechanism including a stationary disc, the outer surface of the stationary disc being fixedly connected to the motor housing, the inner wall of the stationary disc being rotatably connected to the shaft, a limit slip ring being fixedly connected to the outer surface of the stationary disc, a moving disc being slidably connected to the outer surface of the limit slip ring, and the inner wall of the moving disc being fixedly connected to the shaft.

[0006] Preferably, a sealing ring is fixedly connected to the inner wall of the moving disk, and the inner wall of the sealing ring is rotatably connected to the stationary disk. By setting the sealing ring, the sealing performance between the stationary disk and the moving disk can be effectively improved.

[0007] Preferably, a second sealing ring is fixedly connected to the inner wall of the moving disk. The inner wall of the second sealing ring is fixedly connected to the shaft. By setting the second sealing ring, not only can the sealing performance be improved, but the connection between the shaft and the moving disk can also be made more secure.

[0008] Preferably, a motor mechanism is provided inside the motor housing. The motor mechanism includes a stator lower frame. The outer surface of the stator lower frame is fixedly connected to the motor housing. A base is provided on the outer surface of the stator lower frame to facilitate fixing it to the inner wall of the motor housing.

[0009] Preferably, a stator core is fitted onto the outer surface of the lower stator frame, and enameled wire is wound around the inner wall of the stator core. An upper stator frame is fixedly connected to the top surface of the stator core. The motor stator is formed by the interaction of the lower stator frame, the stator core, the enameled wire, and the upper stator frame.

[0010] Preferably, a rotor steel sleeve is rotatably connected to the inner wall of the stator lower frame, and a rotor magnetic ring is fitted on the outer surface of the rotor steel sleeve. The motor rotor is formed by the rotor steel sleeve, the rotor magnetic ring, the plastic and the shaft.

[0011] Preferably, one end of the rotor steel sleeve is fixedly connected to a plastic component. The outer surface of the rotor steel sleeve has a first bend and a second bend. By setting the first bend and the second bend on both sides of the rotor steel sleeve, the contact area between the rotor steel sleeve and the plastic can be increased, which can effectively prevent sodium hypochlorite solvent from contacting the rotor magnetic ring. The first bend and the second bend are inclined edges. The coefficient of thermal expansion of the plastic is greater than that of the rotor steel sleeve. At high temperatures, with the first bend and the second bend as the dividing line, the plastic on the left side expands when heated and will fit tightly with the rotor steel sleeve, thus providing a sealing effect. The plastic on the right side expands when heated and will create a gap with the rotor steel sleeve, thus not providing a sealing effect. At low temperatures, the plastic on the left side contracts when cooled and will create a gap with the rotor steel sleeve, thus not providing a sealing effect. The plastic on the right side contracts when cooled and will fit tightly with the rotor steel sleeve, thus providing a sealing effect.

[0012] Preferably, the outer surface of the moving disc is provided with a drainage groove, the inner wall of the stationary disc is fixedly connected with a cleaning block adapted to the drainage groove, and the outer surface of the stationary disc is provided with a discharge hole.

[0013] This utility model provides a medical disinfection pump motor, which has the following beneficial effects: 1. The medical disinfection pump motor achieves sealed drainage during motor operation through the coordinated arrangement of components in the sealing mechanism, preventing water from seeping into the interior through the gaps in the shaft. This avoids problems such as short circuits and component corrosion, significantly improving the motor's waterproof performance and reliability, extending its service life, and ensuring the safety and stability of medical operations.

[0014] 2. The medical disinfection pump motor, through the combination of the first and second bends, not only increases the contact area and effectively protects the magnetic ring from sodium hypochlorite solvent contact, but also, because the first and second bends are inclined, and the coefficient of thermal expansion of plastic is greater than that of the rotor steel sleeve, at high temperatures, the plastic on the left side of the first and second bends on the rotor steel sleeve expands and seals, while the right side remains gapped. At low temperatures, the opposite is true, thus ensuring a sealing effect through temperature self-adaptation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the moving disc of this utility model; Figure 3 This is a three-dimensional structural diagram of the sealing mechanism of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the static disk of this utility model; Figure 5 This is a schematic diagram of the first bending three-dimensional structure of this utility model; Figure 6 This is a schematic diagram of the three-dimensional structure of the stator core of this utility model; Figure 7 This is a schematic diagram of the three-dimensional structure of the rotor magnetic ring of this utility model.

[0016] [Explanation of Key Component Symbols] 1. Motor housing; 2. Shaft; 3. Sealing mechanism; 301. Stationary disc; 302. Limiting slip ring; 303. Moving disc; 304. Drainage groove; 305. Cleaning block; 306. Discharge hole; 307. Sealing ring one; 308. Sealing ring two; 4. Motor mechanism; 401. Stator lower frame; 402. Stator core; 403. Enamelled wire; 404. Stator upper frame; 405. Rotor steel sleeve; 406. Rotor magnetic ring; 407. Plastic; 408. First bend; 409. Second bend. Detailed Implementation

[0017] This utility model embodiment provides a medical disinfection pump motor. Example 1:

[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The device includes a motor housing 1 and a shaft 2. The outer surface of the shaft 2 is rotatably connected to the motor housing 1. A sealing mechanism 3 is provided inside the motor housing 1. The sealing mechanism 3 includes a stationary disc 301. The outer surface of the stationary disc 301 is fixedly connected to the motor housing 1. The inner wall of the stationary disc 301 is rotatably connected to the shaft 2. A limiting slip ring 302 is fixedly connected to the outer surface of the stationary disc 301. A moving disc 303 is slidably connected to the outer surface of the limiting slip ring 302. The inner wall of the moving disc 303 is fixedly connected to the shaft 2. Through the setting of the limiting slip ring 302 and the moving disc 303, an initial seal can be achieved, effectively blocking most of the solution.

[0019] The outer surface of the moving plate 303 is provided with a drainage groove 304, and the inner wall of the stationary plate 301 is fixedly connected with a cleaning block 305 that is compatible with the drainage groove 304. The outer surface of the stationary plate 301 is provided with a discharge hole 306. By setting the cleaning block 305, the solution in the drainage groove 304 can be effectively prevented from continuously rotating with the moving plate 303. By setting the discharge hole 306, the solution in the drainage groove 304 can be effectively discharged. Example 2:

[0020] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 A sealing ring 307 is fixedly connected to the inner wall of the moving plate 303. The inner wall of the sealing ring 307 is rotatably connected to the stationary plate 301. The sealing ring 307 effectively improves the sealing between the stationary plate 301 and the moving plate 303.

[0021] A second sealing ring 308 is fixedly connected to the inner wall of the moving disk 303. The inner wall of the second sealing ring 308 is fixedly connected to the shaft 2. The setting of the second sealing ring 308 not only improves the sealing performance, but also strengthens the connection between the shaft 2 and the moving disk 303, effectively improving the overall stability during operation. Example 3:

[0022] Please refer to it again. Figure 2 , Figure 5 , Figure 6 and Figure 7 The motor housing 1 is equipped with a motor mechanism 4, which includes a lower stator frame 401. The outer surface of the lower stator frame 401 is fixedly connected to the motor housing 1. A base is provided on the outer surface of the lower stator frame 401 to facilitate fixing it to the inner wall of the motor housing 1. A stator core 402 is fitted on the outer surface of the lower stator frame 401. Enamelled wire 403 is wound around the inner wall of the stator core 402. An upper stator frame 404 is fixedly connected to the top surface of the stator core 402. The lower stator frame 401, the stator core 402, the enamelled wire 403 and the upper stator frame 404 are combined to form the motor stator.

[0023] The inner wall of the stator lower frame 401 is rotatably connected to the rotor steel sleeve 405. The outer surface of the rotor steel sleeve 405 is fitted with a rotor magnetic ring 406. The motor rotor is formed by the rotor steel sleeve 405, the rotor magnetic ring 406, the plastic 407 and the shaft 2. The rotor steel sleeve 405 is made of 317 stainless steel. Because 317 stainless steel is a molybdenum-containing stainless steel, its main component is molybdenum, which makes it more resistant to corrosion.

[0024] Please refer to it again. Figure 5 One end of the rotor steel sleeve 405 is fixedly connected to a plastic 407. The outer surface of the rotor steel sleeve 405 is provided with a first bend 408 and a second bend 409. By providing the first bend 408 and the second bend 409 on both sides of the rotor steel sleeve 405, the contact area between the rotor steel sleeve 405 and the plastic 407 can be increased, which can effectively prevent sodium hypochlorite solvent from contacting the rotor magnetic ring 406. The first bend 408 and the second bend 409 are inclined edges. The coefficient of thermal expansion of the plastic 407 is greater than that of the rotor steel sleeve 405. At high temperatures, with the first bend 408 and the second bend 409 as the dividing line, the plastic 407 on the left expands due to heat and will fit tightly against the rotor steel sleeve 405, thus providing a seal. The plastic 407 on the right expands due to heat and will create a gap with the rotor steel sleeve 405, thus not providing a seal. At low temperatures, the plastic 407 on the left contracts due to cold and will create a gap with the rotor steel sleeve 405, thus not providing a seal. The plastic 407 on the right contracts due to cold and will fit tightly against the rotor steel sleeve 405, thus providing a seal.

[0025] The structural diagrams of the components shown in the attached figures are exemplary. The specific implementation should be adapted and optimized by considering the functional requirements, assembly conditions and process limitations in the actual application scenario, and adjusting the structural parameters, size specifications and connection methods accordingly.

[0026] In use, this invention works as follows: First, after power is applied, as the moving disc 303 rotates with the shaft 2, the solution first seeps between the limiting slip ring 302 and the moving disc 303, and then seeps into the space of the drainage groove 304. Because the moving disc 303 rotates at high speed, the solution moves with it. When it rotates below the shaft 2, part of the solution is discharged from the discharge hole 306, while another part moves upward in a circular motion due to the inertia of the moving disc 303. This upward motion reaches the cleaning block 305, where the solution is blocked and retained below the shaft 2, slowly draining through the discharge hole 306. This allows the device to achieve sealed drainage during motor operation, preventing... The solution allows water to seep into the interior through the gap in shaft 2, thus avoiding problems such as short circuits and component corrosion. This significantly improves the motor's waterproof performance and reliability, extends its service life, and ensures safe and stable medical operations. Secondly, the combination of the first bend 408 and the second bend 409 not only increases the contact area and effectively protects the magnetic ring from sodium hypochlorite solvent, but also, because the first bend 408 and the second bend 409 are beveled, and the coefficient of thermal expansion of plastic 407 is greater than that of rotor steel sleeve 405, at high temperatures, the plastic 407 on the left side of the beveled edge of the first bend 408 and the second bend 409 on rotor steel sleeve 405 expands and seals, while the right side remains gapped. The opposite is true at low temperatures, thus ensuring a sealing effect through temperature self-adaptation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A medical disinfection pump motor, comprising a motor housing (1) and a shaft (2), characterized in that: The outer surface of the shaft (2) is rotatably connected to the motor housing (1). The motor housing (1) is provided with a sealing mechanism (3). The sealing mechanism (3) includes a stationary disc (301). The outer surface of the stationary disc (301) is fixedly connected to the motor housing (1). The inner wall of the stationary disc (301) is rotatably connected to the shaft (2). A limit slip ring (302) is fixedly connected to the outer surface of the stationary disc (301). A moving disc (303) is slidably connected to the outer surface of the limit slip ring (302). The inner wall of the moving disc (303) is fixedly connected to the shaft (2).

2. The medical disinfection pump motor according to claim 1, characterized in that: The inner wall of the moving disk (303) is fixedly connected to a sealing ring (307), and the inner wall of the sealing ring (307) is rotatably connected to the stationary disk (301).

3. The medical disinfection pump motor according to claim 1, characterized in that: The inner wall of the moving disk (303) is fixedly connected to a sealing ring two (308), and the inner wall of the sealing ring two (308) is fixedly connected to the shaft (2).

4. The medical disinfection pump motor according to claim 1, characterized in that: The motor housing (1) is provided with a motor mechanism (4), which includes a stator lower frame (401). The outer surface of the stator lower frame (401) is fixedly connected to the motor housing (1).

5. A medical disinfection pump motor according to claim 4, characterized in that: The stator core (402) is fitted on the outer surface of the lower stator frame (401), and the inner wall of the stator core (402) is wound with enameled wire (403). The upper stator frame (404) is fixedly connected to the top surface of the stator core (402).

6. A medical disinfection pump motor according to claim 4, characterized in that: The inner wall of the stator lower frame (401) is rotatably connected to a rotor steel sleeve (405), and a rotor magnetic ring (406) is sleeved on the outer surface of the rotor steel sleeve (405).

7. A medical disinfection pump motor according to claim 6, characterized in that: One end of the rotor steel sleeve (405) is fixedly connected to a plastic (407), and the outer surface of the rotor steel sleeve (405) is provided with a first bend (408) and a second bend (409).

8. A medical disinfection pump motor according to claim 1, characterized in that: The outer surface of the moving plate (303) is provided with a drainage groove (304), and the inner wall of the stationary plate (301) is fixedly connected with a cleaning block (305) that is compatible with the drainage groove (304). The outer surface of the stationary plate (301) is provided with a discharge hole (306).

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