Motor with full plastic package structure

Abstract

The utility model discloses a motor with a full plastic package structure, which comprises a plastic package shell, a plastic package end cover and an installation end cover, the plastic package shell is provided with a cavity, the cavity is used for installing a plastic package stator, a rotor assembly and a rotating shaft, the plastic package shell and the plastic package end cover are both provided with bearings, the rotating shaft penetrates through the bearings, the installation end cover is provided with a containing cavity, and the containing cavity is provided with a containing cavity. A plastic package connecting piece is formed in the plastic package shell and the plastic package end cover, the installation end cover and the plastic package connecting piece form an integrally-formed structure, the installation end cover is fixed in the plastic package connecting piece, meanwhile, an opening of the containing cavity faces the plastic package stator, the bearing is limited in the containing cavity, and the bearing can be installed in the plastic package shell and the plastic package end cover. And the damage to the plastic package shell and the plastic package end cover structure caused by fixing the bearing through screws is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a motor with a full plastic-sealed structure. Background Art

[0002] Integrated stoves, also known as environmentally friendly stoves or integrated environmentally friendly stoves in the industry, are kitchen appliances that integrate multiple functions such as range hoods, gas stoves, disinfection cabinets, and storage cabinets. They have the advantages of saving space, good fume extraction, energy saving, low consumption, and environmental protection. Integrated stoves use the principle of micro-aerodynamics, deep well down-discharge or side suction down-discharge, and the principle of down-discharge to produce a fluid negative pressure zone, so that the oil smoke can be sucked down like magic, and the phenomenon of oil smoke rising everywhere can no longer be seen. The oil smoke absorption rate is more than 95%. Integrated stoves are internationally leading kitchen appliances developed to solve the problem that traditional range hoods cannot completely eradicate oil smoke and improve the kitchen and home environment. This product organically combines range hoods, stoves, disinfection cabinets, storage cabinets, etc. to completely eradicate kitchen oil smoke.

[0003] The bellows of the integrated stove uses an electric motor to drive the wind wheel to rotate to form negative pressure, thereby achieving the suction and exhaust of oil smoke. The applicant disclosed a utility model patent named Plastic Encapsulated Motor (Grant Announcement No.: CN218352274U) on October 18, 2022, which makes the inner hole 1 of the stator core and the inner hole 2 of the front cover plate highly concentric, and the rotor and stator have uniform breath, ensuring the motor performance.

[0004] In the prior art, bearings are used to guide the rotation of the shaft and can also withstand idling on the shaft. The plastic housing and the plastic end cover in the prior art are both integrally formed with BMC materials. If screws are used to fix the bearings in the plastic housing and the plastic end cover, the plastic housing and the plastic end cover structures will be damaged. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provides a fully plastic-encapsulated structure motor, in which the mounting end cover and the plastic-encapsulated connector form an integrally formed structure, so that the mounting end cover is fixed in the plastic-encapsulated connector. At this time, the bearing is limited in the storage cavity of the mounting end cover, and the bearing can be installed in the plastic-encapsulated housing and the plastic-encapsulated end cover, avoiding the use of screws to fix the bearing and causing damage to the plastic-encapsulated housing and the plastic-encapsulated end cover structure.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A fully plastic-encapsulated motor comprises a plastic-encapsulated shell and a plastic-encapsulated end cover, wherein the plastic-encapsulated shell is provided with a cavity, and the cavity is used to install a plastic-encapsulated stator, a rotor assembly and a rotating shaft, and the plastic-encapsulated shell and the plastic-encapsulated end cover are both provided with bearings, and the rotating shaft passes through the bearings; the motor is characterized in that it also comprises an installation end cover, the installation end cover is provided with a storage cavity, and a plastic-encapsulated connector is formed in the plastic-encapsulated shell and the plastic-encapsulated end cover, and the installation end cover and the plastic-encapsulated connector form an integrally formed structure, so that the installation end cover is fixed in the plastic-encapsulated connector, and at the same time, the opening of the storage cavity is arranged toward the plastic-encapsulated stator, and the bearing is limited in the storage cavity.

[0008] Furthermore, a fixed edge is provided on the outer side of the mounting end cover, and the fixed edge is provided in the plastic-sealed connector so that the opening of the storage cavity is exposed from the plastic-sealed connector, which facilitates the connection between the rotating shaft and the bearing and can improve the firmness of the connection between the mounting end cover and the plastic-sealed connector.

[0009] Furthermore, the cross section of the fixed edge is octagonal.

[0010] Furthermore, the bottom surface of the mounting end cover is used as the horizontal plane A, and the top of the mounting end cover is bent upward to form a connection part, which is connected to the fixed edge. The maximum distance between the connection part and the horizontal plane A is L1, and the maximum distance between the fixed edge and the horizontal plane A is L2, and L1>L2. The setting height of the connection part exceeds the setting height of the fixed edge. When the plastic sealing connector is formed, the connection part has a blocking effect on the plastic sealing material, preventing the plastic sealing material from entering the storage cavity of the mounting end cover, and ensuring the subsequent installation of the bearing.

[0011] Furthermore, the connecting portion is in an arc shape, so that an arc transition is formed between the mounting end cover and the fixed edge, thereby preventing the sharp edges between the mounting end cover and the fixed edge from cutting the operator's hands when installing the bearing.

[0012] Furthermore, a guide portion is provided between the connecting portion and the fixed edge, and the distance between the guide portion and the outer side of the plastic-sealed shell gradually increases from top to bottom, so that a groove is formed between the inner side of the guide portion and the outer side of the plastic-sealed shell, so that the entire fixed edge is arranged in the plastic-sealed connector, thereby improving the firmness of the connection between the mounting end cover and the plastic-sealed connector.

[0013] Furthermore, the connecting portion, the fixed edge, the guide portion and the mounting end cover are an integrally formed structure, which is manufactured by stamping, is easy to operate, and is convenient for controlling the formed shape.

[0014] Furthermore, an embedded groove is formed between the guide portion and the plastic-sealed connector, and a clamping block is inserted into the embedded groove to prevent the connection portion from being deformed when the bearing is installed.

[0015] Furthermore, at least four clamping blocks are evenly distributed in the embedded groove in the circumferential direction, so that the guide part acts evenly on the plastic-sealed connector.

[0016] Furthermore, a groove is provided on the inner side of the mounting end cover, and the groove is connected to the receiving cavity, so as to appropriately increase the space of the receiving cavity and facilitate the entire bearing to be embedded in the receiving cavity.

[0017] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0018] (1) The plastic-sealed shell and the plastic-sealed end cover of the utility model are formed by BMC materials, and the plastic-sealed connector is also formed by BMC materials. The mounting end cover is positioned in the plastic-sealed shell and the plastic-sealed end cover, and the plastic-sealed connector is formed in the space outside the mounting end cover. After the plastic-sealed connector is formed, the mounting end cover and the plastic-sealed connector are formed together to form an integrated molding structure, so that the mounting end cover is fixed in the plastic-sealed connector, and then the bearing is limited in the storage cavity of the mounting end cover, so that the bearing can be installed in the plastic-sealed shell and the plastic-sealed end cover, avoiding the use of screws to fix the bearing and causing damage to the plastic-sealed shell and the plastic-sealed end cover structure.

[0019] (2) The outer side of the mounting end cover of the utility model is provided with a fixed edge, and the fixed edge is arranged in the plastic-sealed connector so that the opening of the storage cavity is exposed from the plastic-sealed connector, which facilitates the connection between the rotating shaft and the bearing and can improve the firmness of the connection between the mounting end cover and the plastic-sealed connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a fully plastic-encapsulated motor of the utility model;

[0022] Figure 2 for Figure 1 Right view of;

[0023] Figure 3 It is a schematic diagram of the structure of the plastic-sealed housing in the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the end cover installed and fixed in the plastic-sealed housing in the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of installing the end cover in the utility model;

[0026] Figure 6 for Figure 5 The main view;

[0027] Figure 7 for Figure 6 Cross-sectional view along the BB direction;

[0028] Figure 8 This is a schematic diagram of the structure of the bearing being limited in the receiving cavity in the utility model;

[0029] Fig. 9 It is a schematic diagram of the structure in which the card blocks are distributed in the embedded grooves in the utility model.

[0030] In the figure, 1-plastic-sealed shell; 2-plastic-sealed end cover; 3-rotating shaft; 4-cavity; 5-plastic-sealed connector; 6-mounting end cover; 7-fixing edge; 8-storage cavity; 9-connecting part; 10-guide part; 11-notch; 12-groove; 13-bearing; 14-embedded groove; 15-block. DETAILED DESCRIPTION

[0031] like Figures 1 to 9 As shown, a fully plastic-encapsulated motor of the utility model includes a plastic-encapsulated housing 1, a plastic-encapsulated end cover 2 and an installation end cover 6. The plastic-encapsulated housing 1 and the plastic-encapsulated end cover 2 of the utility model are formed by BMC material. The plastic-encapsulated housing 1 is provided with a cavity 4, and the cavity 4 is used to install the plastic-encapsulated stator, rotor assembly and rotating shaft 3. The plastic-encapsulated stator, rotor assembly and rotating shaft 3 are prior art, and the utility model will not elaborate on the structure. The specific reference name is the utility model patent of plastic-encapsulated motor (authorization announcement number: CN218352274U). The plastic-encapsulated housing 1 and the plastic-encapsulated end cover 2 are both installed with bearings 13, and the rotating shaft 3 passes through the bearings 13.

[0032] The mounting end cover 6 is provided with a storage cavity 8, and a plastic sealing connector 5 is formed in the plastic sealing housing 1 and the plastic sealing end cover 2. The plastic sealing connector 5 is formed by BMC material. The mounting end cover 6 and the plastic sealing connector 5 form an integrally formed structure, so that the mounting end cover 6 is fixed in the plastic sealing connector 5, and the opening of the storage cavity 8 is arranged toward the plastic sealing stator, and the bearing 13 is limited in the storage cavity 8. A groove 12 is provided on the inner side of the mounting end cover 6, and the groove 12 is connected to the storage cavity 8, so as to appropriately increase the space of the storage cavity 8 and facilitate the entire bearing 13 to be embedded in the storage cavity 8.

[0033] A fixed edge 7 with an octagonal cross-section is provided on the outer side of the mounting end cover 6. The fixed edge 7 is arranged in the plastic-sealed connector 5 so that the opening of the storage cavity 8 is exposed from the plastic-sealed connector 5, which facilitates the connection between the rotating shaft 3 and the bearing 13 and can improve the firmness of the connection between the mounting end cover 6 and the plastic-sealed connector 5.

[0034] The bottom surface of the mounting end cover 6 is used as the horizontal plane A, and the top end of the mounting end cover 6 is bent upward to form a connecting portion 9. The connecting portion 9 is in an arc shape, so that there is an arc transition between the mounting end cover 6 and the fixed edge 7, so as to avoid the edges and corners between the mounting end cover 6 and the fixed edge 7 from cutting the operator's hands when installing the bearing 13.

[0035] A guide portion 10 is provided between the connection portion 9 and the fixed edge 7, so that the connection portion 9 and the fixed edge 7 are connected, and the distance between the guide portion 10 and the outer side of the plastic-encapsulated housing 1 gradually increases from top to bottom, so that the inner side of the guide portion 10 and the outer side of the plastic-encapsulated housing 1 form a notch 11, so that the entire fixed edge 7 is provided in the plastic-encapsulated connector 5, and the firmness of the connection between the mounting end cover 6 and the plastic-encapsulated connector 5 is improved. The connection portion 9, the fixed edge 7, the guide portion 10 and the mounting end cover 6 are an integrally formed structure, which is integrally formed by stamping, and the operation is simple, and the shape of the forming is easy to control.

[0036] The maximum distance between the connecting portion 9 and the horizontal plane A is L1, and the maximum distance between the fixed edge 7 and the horizontal plane A is L2, L1>L2, so that the setting height of the connecting portion 9 exceeds the setting height of the fixed edge 7. When the plastic-encapsulated connector 5 is formed, the connecting portion 9 has a blocking effect on the plastic-encapsulating material, preventing the plastic-encapsulating material from entering the receiving cavity 8 of the mounting end cover 6, thereby ensuring the subsequent installation of the bearing 13.

[0037] An embedded groove 14 is formed between the guide portion 10 and the plastic-sealed connector 5, and a clamping block 15 is inserted into the embedded groove 14 to prevent the connection portion 9 from being deformed when the bearing 13 is installed. At least four clamping blocks 15 are uniformly distributed in the embedded groove 14 in the circumferential direction, so that the guide portion 10 acts evenly on the plastic-sealed connector 5. The utility model uses six clamping blocks 15.

[0038] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A fully plastic-encapsulated motor, comprising a plastic-encapsulated housing and a plastic-encapsulated end cover, wherein the plastic-encapsulated housing is provided with a cavity, wherein the cavity is used to install a plastic-encapsulated stator, a rotor assembly and a rotating shaft, wherein the plastic-encapsulated housing and the plastic-encapsulated end cover are both provided with bearings, and the rotating shaft passes through the bearings; Features: It also includes an installation end cover, which is provided with a storage cavity. A plastic-sealed connector is molded in the plastic-sealed shell and the plastic-sealed end cover. The installation end cover and the plastic-sealed connector form an integrally molded structure, so that the installation end cover is fixed in the plastic-sealed connector. At the same time, the opening of the storage cavity is arranged toward the plastic-sealed stator, and the bearing is limited in the storage cavity.

2. The fully plastic-encapsulated motor according to claim 1, characterized in that: A fixed edge is arranged on the outer side of the mounting end cover, and the fixed edge is arranged in the plastic sealing connector.

3. The fully plastic-encapsulated motor according to claim 2, characterized in that: The cross section of the fixed edge is octagonal.

4. The fully plastic-encapsulated motor according to claim 2, characterized in that: The bottom surface of the mounting end cover is used as the horizontal plane A, and the top end of the mounting end cover is bent upward to form a connecting portion, and the connecting portion is connected to the fixed edge. The maximum distance between the connecting portion and the horizontal plane A is L1, and the maximum distance between the fixed edge and the horizontal plane A is L2, L1>L2.

5. The fully plastic-encapsulated motor according to claim 4, characterized in that: The connecting portion is in an arc shape.

6. The fully plastic-encapsulated motor according to claim 4, characterized in that: A guide portion is provided between the connecting portion and the fixed edge, and the distance between the guide portion and the outer side of the plastic-encapsulated shell gradually increases from top to bottom, so that a notch is formed between the inner side of the guide portion and the outer side of the plastic-encapsulated shell.

7. The fully plastic-encapsulated motor according to claim 6, characterized in that: The connecting portion, the fixing edge, the guiding portion and the mounting end cover are an integrally formed structure.

8. The fully plastic-encapsulated motor according to claim 6, characterized in that: An embedded groove is formed between the guide portion and the plastic-sealed connector, and a clamping block is clamped in the embedded groove.

9. The fully plastic-encapsulated motor according to claim 8, characterized in that: At least four of the clamping blocks are uniformly distributed in the embedded groove in the circumferential direction.

10. The fully plastic-encapsulated motor according to claim 1, characterized in that: A groove is provided on the inner side of the mounting end cover, and the groove is communicated with the receiving cavity.

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