An integrated nebulizer pump core assembly

Abstract

The application discloses an integrated atomizer pump core assembly, comprising a terminal block, a shaded pole motor body, a winding, a control switch, a wire, a crank and a cylinder. The terminal block is provided with a hollow motor fixing part, the winding is wound on the surface of the motor fixing part, and the shaded pole motor body is fixed in the motor fixing part; the side surface of the terminal block is provided with a switch mounting part for embedding the control switch and a wire fixing part for clamping the wire. The wire inlet end is connected with one end of the control switch, the other end of the control switch is connected with the first end of the winding, and the tail end of the winding is connected with the wire outlet end. The cylinder is connected with the shaded pole motor body, one end of the crank is eccentrically connected with the motor driving end, and the other end of the crank extends into the cylinder. The motor, the control switch and the wire are integrated on the same terminal block, the electrical and mechanical integrated layout is realized, the wiring is simplified, the connection points are reduced, the structural compactness, the assembly efficiency and the connection reliability are improved, maintenance is facilitated, and the overall stability and service life of the product are enhanced.

Description

Technical Field

[0001] This utility model belongs to the technical field of atomizing devices, and in particular relates to an integrated atomizer pump core assembly. Background Technology

[0002] In existing atomizer pump assemblies, the motor, control module, and fluid drive components (such as crankshafts and cylinder blocks) are typically installed and wired separately. This design results in a loose internal structure, with electrical connections between components often relying on manual soldering or simple plug-in connections. This not only leads to cumbersome and inefficient assembly processes but also makes it difficult to guarantee the reliability and consistency of connection points. Furthermore, the dispersed layout results in insufficient overall structural rigidity, making it prone to loose wires, poor contact, or component displacement under vibration or long-term use, thus affecting the stability and control accuracy of atomization performance. Simultaneously, existing structures often lack effective protection for the circuitry and integrated wiring fixation, posing certain safety risks and maintenance inconveniences. Utility Model Content

[0003] (I) Purpose of the utility model

[0004] To overcome the above shortcomings, the purpose of this utility model is to provide an integrated atomizer pump core assembly to solve the technical problems of existing atomizer pump core assemblies being loose, complex to assemble, and lacking reliability of electrical connections and stability of the overall structure.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] An integrated atomizer pump core assembly is characterized by comprising: a terminal block, a shaded-pole motor body, a winding, a control switch, a wire, a crank, and a cylinder; a hollow motor fixing part extends laterally on the terminal block, the winding is wound around the surface of the motor fixing part, and one side of the shaded-pole motor body is inserted and fixed to the motor fixing part; the side of the terminal block has a switch mounting part for embedding and installing the control switch, and a wire fixing part for engaging and fixing the wire; the wire has an inlet end and an outlet end, the inlet end is connected to one terminal of the control switch, the other terminal of the control switch is connected to the first end of the winding, and the end of the winding is connected to the outlet end of the wire; the cylinder is connected to the shaded-pole motor body, one end of the crank is eccentrically connected to the drive end of the shaded-pole motor body, and the other end extends into the cylinder.

[0008] This application integrates the motor, control switch, and wiring onto a single terminal block, achieving a unified layout of electrical and mechanical structures. This significantly simplifies internal wiring, reduces the number of connection points, and thus improves the overall structural compactness and assembly efficiency. The centralized arrangement of electrical components enhances connection reliability and consistency, reducing the risk of poor contact due to vibration or long-term use. Simultaneously, the integrated design facilitates subsequent maintenance and testing, improving the overall stability and lifespan of the product.

[0009] In some embodiments, the motor mounting portion has mounting surfaces extending radially on both sides, which are used to abut against the inner surface of the shaded-pole motor body.

[0010] By setting a fixed surface, not only can the two ends of the winding be limited, but it also directly abuts against the inner surface of the shaded-pole motor body, enhancing the mechanical coupling strength between the motor and the terminal block and effectively preventing the motor from shifting or shaking during operation. This structure improves the rigidity of the overall component, ensuring the stability of power transmission under vibration or high-frequency operating environments, thereby guaranteeing the continuity and reliability of the atomization process, while also helping to reduce operating noise and wear.

[0011] In some embodiments, the switch mounting portion is a first slot for inserting a control switch, and after the control switch is inserted, its two terminals face the inside of the terminal block.

[0012] The slot-type embedded installation securely fixes the control switch within the terminal block, preventing loosening due to external force or vibration. The inward-facing terminal block layout saves external space and reduces the risk of external interference or accidental contact, enhancing electrical safety. Furthermore, this design facilitates quick alignment and installation during assembly, further improving production efficiency and assembly consistency.

[0013] In some embodiments, the wire is provided with a snap connector, which includes two opposing limiting portions and a first engaging groove located between the two limiting portions; the wire fixing portion includes a snap-fit ​​opening that snaps into the first engaging groove and a wire hole corresponding to the snap-fit ​​opening, and the wire terminal passes through the wire hole and extends to a position corresponding to the terminal of the control switch.

[0014] The engagement of the connector and the wire fixing part mechanically locks and positions the wire, effectively preventing it from falling off or shifting under vibration or pulling. The wire hole guides the cable's path, ensuring the terminal extends accurately to the vicinity of the control switch, simplifying the wiring process and improving wiring consistency and reliability. This structure reduces reliance on welding processes, facilitates automated assembly, and enhances the overall neatness and ease of maintenance.

[0015] In some embodiments, the wire fixing part further includes two second slots disposed opposite to each other; the atomizer pump core assembly further includes a retaining ring, which is disposed around the wire and its end engages in the second slot.

[0016] The engagement of the retaining ring and the second retaining groove provides double fixation for the conductor, further enhancing its vibration resistance and tensile strength under complex operating conditions. This structure distributes the stress points on the conductor, preventing localized fatigue or damage and extending its service life. Simultaneously, the retaining ring design facilitates installation and removal, providing convenience for subsequent maintenance or conductor replacement and improving product maintainability.

[0017] In some embodiments, the device further includes a protector disposed between the inlet of the conductor and the terminal block of the control switch.

[0018] The introduction of the protector can promptly disconnect the circuit in case of abnormal current or short circuit, effectively preventing overload damage to electrical components and improving the safety and reliability of the system. This design enhances the protection of the motor and control module, reduces the risk of overall failure due to electrical faults, and also helps to comply with relevant electrical safety standards, improving the product's marketability and user trust.

[0019] In some embodiments, the shaded pole motor body extends horizontally outward to form an insertion portion, which is used to engage with the housing of the atomizer.

[0020] The insertion section design allows for quick and secure assembly between the pump core assembly and the atomizer housing, eliminating the need for additional fasteners and simplifying the overall assembly process. This structure enhances the positioning accuracy and connection strength of the pump core within the device, preventing loosening due to long-term operation or handling, and ensuring the stability and consistency of the overall atomizer structure.

[0021] In some embodiments, a third slot is provided on the outer side of the cylinder body to engage with the inner side of the atomizer housing.

[0022] The third slot engages with the inner side of the housing, allowing for direct locking and fixation between the cylinder and the housing, thus enhancing the structural integration of the atomizer pump core within the overall device. This design reduces the risk of leakage or performance fluctuations caused by cylinder displacement or loosening, improves the sealing and operational stability of the atomization process, and also helps optimize the internal space layout of the device, resulting in a more compact product design. Attached Figure Description

[0023] Figure 1 This is a first-view structural schematic diagram of the integrated atomizer pump core assembly of this utility model;

[0024] Figure 2 This is a second-view structural schematic diagram of the integrated atomizer pump core assembly of this utility model;

[0025] Figure 3 This is an exploded view of the integrated atomizer pump core assembly of this utility model;

[0026] Figure 4 This is a wiring diagram of the components in the integrated atomizer pump core assembly of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the shaded-pole motor body in the integrated atomizer pump core assembly of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the shroud-pole motor body after disassembly in the integrated atomizer pump core assembly of this utility model.

[0029] Figure 7 This is a first-view structural schematic diagram of the wiring bracket in the integrated atomizer pump core assembly of this utility model;

[0030] Figure 8 This is a second-view structural schematic diagram of the wiring bracket in the integrated atomizer pump core assembly of this utility model.

[0031] Figure label:

[0032] 1. Terminal block; 11. Motor mounting part; 111. Mounting surface; 12. Switch mounting part; 121. First slot; 13. Wire fixing part; 131. Bayonet; 132. Wire hole; 133. Second slot; 2. Shaded pole motor body; 21. Motor body; 22. Detachable side; 23. Insertion part; 3. Winding; 4. Control switch; 41. Terminal block; 5. Wire; 51. Inlet end; 52. Outlet end; 53. Connector; 531. Limiting part; 532. First engaging slot; 6. Crank; 7. Cylinder body; 71. Third slot; 8. Snap ring; 9. Protector; 10. Fan blade; 14. Tape. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0034] This utility model provides an integrated atomizer pump core assembly, the basic components of which include a terminal block 1, a shaded pole motor body 2, windings 3, a control switch 4, wires 5, a crank 6, and a cylinder 7.

[0035] Specifically, the terminal block 1 is typically injection molded from insulating engineering plastic, with its main body extending laterally to form a hollow cylindrical motor mounting part 11. The winding 3 is made of enameled copper wire and is tightly wound around the outer surface of the motor mounting part 11. The shaded-pole motor body 2 is a common miniature shaded-pole motor, consisting of two parts, one of which is detachably connected. During assembly, the detachable side is first inserted into the inner hole of the motor mounting part 11 and fixed by interference fit or local glue application, and then both ends are connected to the other part. The detachable connection can be, for example, a slot. The terminal block 1 has a dedicated switch mounting part 12 and a wire fixing part 13 on its side wall, which are integrated with the motor mounting part 11 on the same bracket, thereby achieving centralized electrical layout.

[0036] The shaded-pole motor body 2 adopts a common miniature shaded-pole motor structure, which consists of two parts: a detachable side panel and a motor body. The two parts are detachably connected. During assembly, the detachable side panel is first inserted into the inner hole of the motor fixing part 11 and fixed by interference fit or local glue application. Then, the detachable side panel is connected to the motor body as a whole. The detachable connection can be achieved using a slot or other structure. The terminal block 1 has a switch mounting part 12 and a wire fixing part 13 integrally formed on its side wall. The two are integrated with the motor fixing part 11 on the same bracket, thereby achieving centralized electrical layout and compact overall structure.

[0037] Specifically, the control switch 4 is preferably a rocker switch or a push-button switch, which is embedded and secured in the terminal block 1 via the switch mounting part 12. The conductor 5 is usually a multi-strand copper core flexible wire, which has an inlet end 51 and an outlet end 52. In terms of connection, the inlet end 51 is connected to an external power supply, the inlet end 51 of the conductor 5 is connected to one terminal 41 of the control switch 4, the other terminal 41 of the control switch 4 is soldered to the first end of the winding 3, and the end of the winding 3 is finally connected to the outlet end 52 of the conductor 5, thereby forming a complete power supply and control circuit.

[0038] In the mechanical transmission section, the cylinder body 7 is typically a cylindrical cavity made of metal or high-strength plastic, which is fixed to the outer shell of the shaded-pole motor body 2 by screws or clips. The crank 6 is generally a metal connecting rod, one end of which is eccentrically connected to the drive output shaft of the shaded-pole motor body 2, specifically by means of set screws or crimping; the other end of the crank 6 extends into the inner cavity of the cylinder body 7 and reciprocates under the drive of the motor, thereby realizing the pumping of fluid.

[0039] Furthermore, based on the aforementioned basic structure, the design of the motor fixing part 11 can be further optimized. Specifically, two parallel fixing surfaces 111 can be integrally extended radially from both sides of the motor fixing part 11 facing the shaded-pole motor body 2. These fixing surfaces 111 are preferably planar, and their position and size are set such that, in addition to limiting the ends of the winding 3, they can contact and abut against the inner surface of the shaded-pole motor body 2 after insertion. In this way, radial fixing is achieved not only through the hole-shaft fit but also through axial lateral contact, significantly enhancing the motor's resistance to vibration and torsion during operation.

[0040] Specifically, regarding the installation method of the control switch 4, the switch mounting part 12 can be specifically designed as a first slot 121. The shape of the first slot 121 matches the switch housing, and its opening width is slightly smaller than the thickness of the switch body, so that the elasticity of the plastic allows the switch to be pressed in and obtain a clamping force. It is worth noting that after the switch is embedded and installed, its two metal terminals 41 should face the inside of the terminal block 1, that is, the side facing the winding 3. This layout makes it easier to connect to the winding 3, while making the internal wiring more compact, and making it less likely for the external wires 5 to directly touch the live terminals, thus improving the safety of use.

[0041] Based on this, the fixing structure of the wire 5 can be further refined. A preferred embodiment is to injection mold a snap-fit ​​connector 53 onto the outside of the wire 5. This snap-fit ​​connector 53 includes two opposing limiting portions 531, with a first engaging groove 532 formed between the two limiting portions 531. Correspondingly, a protruding snap-fit ​​surface is provided on the wire fixing portion 13 of the terminal block 1, with a snap-fit ​​opening 131 on the snap-fit ​​surface. Specifically, the thickness of this snap-fit ​​surface is adapted to the width of the first engaging groove 532, allowing the snap-fit ​​opening 131 to accurately engage without loosening. Simultaneously, a wire hole 132 is provided at the same axial position as the snap-fit ​​opening 131. After the insulation layer of the wire 5 is stripped, it passes through the wire hole 132 and extends outwards for a certain length, precisely reaching a position convenient for soldering or insertion with the terminal block 41 of the control switch 4. Through this snap-fit ​​engagement, the wire 5 is pre-positioned and mechanically locked, greatly facilitating subsequent electrical connection operations.

[0042] Preferably, to cope with more severe vibration environments, the wire fixing part 13 can also be provided with a pair of second retaining slots 133. These two second retaining slots 133 are arranged opposite each other on both sides of the wire 5's exit path. At this time, the atomizer pump core assembly also includes an independent retaining ring 8, which can be made of metal or plastic and is fitted over the cable of the wire 5. The two ends of the retaining ring 8 are designed with hook-shaped or protruding structures, and during assembly, its ends are pressed into the second retaining slots 133 and locked. In this way, the wire 5, in addition to being fixed by the retaining connector 53, obtains a second fixing point near the outer shell, resulting in a more reasonable force distribution and effectively preventing the cable from being damaged from the root due to long-term bending or pulling.

[0043] It is worth noting that, to improve circuit safety, the pump core assembly may also include a protector 9. This protector 9 is preferably a miniature fuse or a one-time current protector, connected in series between the inlet 51 of the conductor 5 and the terminal 41 of the control switch 4. The protector 9 can be directly soldered to the conductor 5 connecting the two, or installed through a dedicated fuse holder. When an overcurrent or short-circuit fault occurs in the circuit, the protector 9 will quickly melt to cut off the circuit, thereby protecting the core electrical components such as the winding 3 and the switch from damage. Specifically, after the winding 3 is wound around the motor mounting part 11, it is insulated by wrapping tape 14 around the outside of the winding 3. Figure 4 The diagram shows the state after the tape is wrapped. Tearing off one corner of the tape 14 reveals the inner part of the winding 3), and then wrapping another layer of tape 14 around the outside of the protector 9 for insulation protection.

[0044] The shaded-pole motor body 2 can also be adapted for the installation of the pump core and the atomizer housing. For example, a cylindrical insertion part 23 can extend horizontally outward from the outer shell of the shaded-pole motor body 2. This insertion part 23 can be made of stamped metal and riveted or integrally formed with the shaded-pole motor body 2. Corresponding guide grooves or snap-fit ​​slots are provided on the inner wall of the atomizer housing. During assembly, simply inserting the insertion part 23 into the guide groove or snap-fit ​​slot completes the locking and fixing, achieving rapid installation and precise positioning of the pump core.

[0045] Similarly, the connection between the cylinder 7 and the housing can also be achieved through an integrated snap-fit ​​mechanism. A third annular groove 71 can be formed on the outer wall of the cylinder 7. The cross-section of this third groove 71 is preferably annular. Correspondingly, raised ribs are designed on the inner side of the atomizer housing. During assembly, the cylinder 7 is pushed into the housing, causing the ribs within the housing to engage with the third groove 71, thus achieving axial and radial positioning of the cylinder 7 within the housing. This design enhances the structural integration and sealing reliability of the pump core as a whole within the device.

[0046] In this assembly, the terminal block 1 serves as an integrated installation platform, where the winding of the winding 3, motor assembly, switch installation, and wire fixing are completed sequentially, ultimately forming a pump core module with reliable electrical connection and compact structure, which can be directly installed into the atomizer housing for use.

[0047] The working principle of the atomizer pump core assembly is as follows: When an external power source is connected via wire 5 and turned on by control switch 4, winding 3 is energized and drives the shaded-pole motor body 2 to start running. When the motor is running, its drive output shaft drives crank 6 to rotate eccentrically, which in turn drives the piston or diaphragm inside cylinder 7 to reciprocate, generating pressure changes to achieve liquid intake and atomization discharge. Simultaneously, the fan blades 10, fixed to the drive shaft or dedicated transmission shaft of the shaded-pole motor body 2, also rotate with the motor. The airflow generated by the rotation of fan blades 10 serves two purposes: firstly, it provides some cooling for the motor itself and surrounding electrical components (such as winding 3 and control switch 4); secondly, it guides the airflow to the atomization outlet area to accelerate the diffusion of the atomized medium, improve atomization uniformity, and prevent droplets from accumulating near the outlet. Thus, by integrating drive, pumping, and airflow assistance functions onto the same motor shaft, this structure achieves efficient and stable atomization and heat dissipation in a compact space.

[0048] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An integrated atomizer pump core assembly, characterized in that, include: Terminal block (1), shaded pole motor body (2), winding (3), control switch (4), wire (5), crank (6) and cylinder (7); The terminal block (1) extends laterally to form a hollow motor fixing part (11), the winding (3) is wound around the surface of the motor fixing part (11), and one side of the shaded pole motor body (2) is inserted and fixed to the motor fixing part (11). The side of the terminal block (1) is provided with a switch mounting part (12) for embedding and installing the control switch (4), and a wire fixing part (13) for engaging and fixing the wire (5); The conductor (5) has an inlet end (51) and an outlet end (52). The inlet end (51) is connected to one terminal of the control switch (4), and the other terminal of the control switch (4) is connected to the first end of the winding (3). The end of the winding (3) is connected to the outlet end (52) of the conductor (5). The cylinder (7) is connected to the shaded pole motor body (2), one end of the crank (6) is eccentrically connected to the drive end of the shaded pole motor body (2), and the other end extends into the cylinder (7).

2. The integrated atomizer pump core assembly according to claim 1, characterized in that, The motor fixing part (11) has a fixing surface (111) extending radially on both sides, and the fixing surface (111) is used to abut against the inner side of the shaded pole motor body (2).

3. The integrated atomizer pump core assembly according to claim 1, characterized in that, The switch mounting part (12) is a first slot (121) for the control switch (4) to be inserted. After the control switch (4) is inserted, its two terminals face the inside of the terminal block (1).

4. The integrated atomizer pump core assembly according to claim 1, characterized in that, The wire (5) is provided with a snap connector (53), which includes two opposing limiting parts (531) and a first engaging groove (532) located between the two limiting parts (531). The wire fixing part (13) includes a slot (131) that snaps into the first engaging groove (532) and a wire hole (132) corresponding to the slot (131). The wire end of the wire (5) passes through the wire hole (132) and extends to a position corresponding to the terminal of the control switch (4).

5. The integrated atomizer pump core assembly according to claim 4, characterized in that, The wire fixing part (13) also includes two second slots (133) arranged opposite to each other; The atomizer pump core assembly also includes a retaining ring (8), which is arranged around the wire (5) and its end is engaged in the second retaining groove (133).

6. The integrated atomizer pump core assembly according to any one of claims 1 to 5, characterized in that, Also includes: Protector (9) is disposed between the inlet end (51) of the conductor (5) and the terminal of the control switch (4).

7. The integrated atomizer pump core assembly according to any one of claims 2-6, characterized in that, The shaded pole motor body (2) extends horizontally outward to form an insertion part (23), which is used to engage with the housing of the atomizer.

8. The integrated atomizer pump core assembly according to any one of claims 2-6, characterized in that, The cylinder (7) has a third slot (71) on its outer side that engages with the inner side of the atomizer housing.

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