Motor heat insulation structure and food processor
By using the step hole connection between the stator core and the heating plate and the heat insulation part design in the cooking machine, the problem of heat transfer to the motor of the heating plate is solved, and the motor performance improvement and safety compliance are achieved.
Patent Information
- Application Number
- CN202422266014.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-14
AI Technical Summary
In existing cooking machines, the heat from the heating plate is transferred to the motor, resulting in high motor temperature, affecting the motor performance and not complying with safety regulations.
A motor with a stator core is equipped with a stator hole, and a heating plate is equipped with a coaxial step hole. The connecting parts are connected by internal threads to form a gap to reduce heat transfer. A heat insulation can be used to block radiant heat.
Effectively reduce the heat transferred to the motor by the heating plate, improve the motor performance, and meet the safety regulations.
Smart Images
Figure CN223126355U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of small household appliances, and more particularly, to a motor heat insulation structure and a cooking machine. Background Art
[0002] In some cooking machines, when the temperature of the heating plate rises, the heat of the heating plate is transferred to the motor, resulting in a high temperature of the motor, affecting the performance of the motor and not meeting the safety regulations. Summary of the Invention
[0003] This application provides a motor heat insulation structure and a cooking machine, which can reduce the heat transferred from the heating plate to the motor.
[0004] A motor heat insulation structure includes:
[0005] A motor, including a stator core, and the stator core is provided with a stator hole;
[0006] A heating plate, provided with a heating plate hole coaxial with the stator hole, the heating plate hole is set as a stepped hole, one end of the heating plate hole close to the stator hole is a large hole, and one end far from the stator hole is a small hole, and the small hole is an internal thread hole;
[0007] A connecting member, passing through the stator hole and the large hole, and being threadedly connected to the internal thread hole.
[0008] In this application, the motor and the heating plate can be connected through the connecting member, and through the large hole of the heating plate hole, a gap is formed between the connecting member and the heating plate at the large hole, reducing the engagement length between the connecting member and the heating plate, and further reducing the heat transferred from the heating plate to the motor through the connecting member.
[0009] Optionally, the internal thread hole is a blind hole, and there is a gap between the connecting member and the bottom of the internal thread hole, and the gap is greater than the depth of the large hole. With such a setting, the end of the connecting member does not contact the bottom of the internal thread hole, further reducing the contact area between the connecting member and the heating plate and reducing heat transfer.
[0010] Optionally, the motor heat insulation structure further includes a heat insulation member, and the heat insulation member is fixedly arranged between the motor and the heating plate. The heat insulation member can block the heat radiated from the heating plate, which is beneficial to reducing the heat transferred from the heating plate to the motor.
[0011] Optionally, the heat insulation member is fixedly connected to the heating plate, which is convenient for connection.
[0012] Optionally, the heating plate includes a disk-shaped main body and a column protruding from the disk-shaped main body towards the motor, the disk-shaped main body is provided with a heating tube, there is a gap between the heating tube and the column, and the column is provided with the heating plate hole. The column does not directly contact the heating tube, reducing heat transfer.
[0013] Optionally, the thickness of the disc-shaped body at the part where the upright post is provided is smaller than that at other parts. In this way, the accumulation of heat here can be reduced, thereby reducing the heat transferred to the upright post.
[0014] Optionally, the heating disc is further provided with a rotor hole and a positioning structure, and the positioning structure is in radial positioning cooperation with the stator core in the rotor hole. This positioning structure is used to ensure the coaxiality of the rotor and the rotor hole.
[0015] Optionally, the positioning structure includes at least two positioning posts, at least one of which cooperates with the outer surface of the stator core, and at least one of which is in positioning cooperation with the inner surface of the stator core. With such a setting, the stator core is restricted by the positioning posts on both the inner and outer sides, achieving positioning in the radial direction and ensuring the coaxiality of the rotor and the rotor hole.
[0016] Optionally, the positioning structure includes three positioning posts distributed at the three vertices of a triangle, two of which cooperate with the inner surface of the stator core, and one of which is in positioning cooperation with the outer surface of the stator core. The three positioning posts not only provide a positioning function, but also provide three-point support for the stator core, making the installed structure more stable.
[0017] Optionally, there are at least two groups of the positioning structures, and two groups of the positioning structures are arranged at an interval of 180°.
[0018] A cooking machine includes the motor heat insulation structure according to any one of the above. Description of the Drawings
[0019] Figure 1 is an exploded view of the inverted motor heat insulation structure shown in an exemplary embodiment of the present application;
[0020] Figure 2 is Figure 1 the assembled drawing of the motor heat insulation structure shown in ;
[0021] Figure 3 is Figure 1 the sectional view of the motor heat insulation structure shown in ;
[0022] Figure 4 is the top view of the heating disc;
[0023] Figure 5 is the schematic diagram of another view angle of the heating disc. Detailed Embodiments
[0024] Here, in conjunction with the accompanying drawings, the technical solutions in the embodiments (or "embodiments") of the present application will be clearly and completely described. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0025] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), then such terms are only used to explain the relative positional relationships and movement conditions between components in a certain specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.
[0026] Please refer to Figures 1 to 3 , Figure 1 which is a schematic diagram of the motor heat insulation structure 100 shown in an exemplary embodiment of the present application placed upside down. Figure 2 is Figure 1 the assembly diagram of the motor heat insulation structure 100 shown in Figure 3 is Figure 1 the cross-sectional view of the motor heat insulation structure 100 shown in
[0027] The present application provides a motor heat insulation structure 100, and this heat insulation structure 100 includes a motor 10, a heating plate 20, and a connecting member 30.
[0028] The motor 10 includes a stator core 11 and a rotor 12. The rotor 12 is rotatable, the stator core 11 is fixedly arranged and is disposed around the periphery of the rotor 12, and the rotor 12 is the motor shaft. The stator core 11 is provided with a stator hole 110, and the stator hole 110 can penetrate the stator core 11 along the length direction of the rotor 12. A plurality of stator holes 110 can be provided and are distributed at intervals along the circumferential direction of the stator core 11.
[0029] The heating plate 20 is provided with a heating plate hole 201 coaxial with the stator hole 110. The heating plate hole 201 is set as a stepped hole. One end of the heating plate hole 201 close to the stator hole 110 is a large hole 201a with a larger diameter, and the end far from the stator hole 110 is a small hole 201b with a smaller diameter. The small hole 201b is an internal threaded hole.
[0030] In Figure 1In the illustrated embodiment, the heating plate 20 includes a disc-shaped main body 21 and a column 22 extending from the disc-shaped main body 21 towards the motor 10. Among them, a heating tube is provided inside the disc-shaped main body 21. The column 22 is provided with a heating plate hole 201. There may be a plurality of columns 22, which are arranged in one-to-one correspondence with a plurality of stator holes 110. In this embodiment, there are two columns 22, and the two columns 22 may be arranged at an interval of 180°.
[0031] The connecting member 30 passes through the stator hole 110 and the large hole 201a, and is threadedly connected to the small hole 201b for locking and fixing the motor 10 and the heating plate 20. The number of the connecting members 30 may also be set according to the number of the stator holes 110.
[0032] According to the above description, the motor 10 and the heating plate 20 can be connected through the connecting member 30, and through the large hole 201a of the heating plate hole 201, a gap is formed between the connecting member 30 and the heating plate 20 at the large hole 201a, reducing the engagement length of the connecting member 30 and the heating plate 20, and further reducing the heat transferred from the heating plate 20 to the motor 10 through the connecting member 30.
[0033] In one embodiment, as Figure 3 shown, the internal thread hole is a blind hole, and there is a gap δ between the connecting member 30 and the bottom of the internal thread hole, and the gap δ is greater than the depth of the large hole 201a. With such a setting, the end of the connecting member 30 does not contact the bottom of the internal thread hole, further reducing the contact area between the connecting member 30 and the heating plate 20 and reducing heat transfer.
[0034] In one embodiment, the heating plate 20 is further provided with a positioning structure 23 and a rotor hole 24, and the positioning structure 23 is in radial positioning cooperation with the stator core 11 at the rotor hole 24. The positioning structure 23 is used to ensure the coaxiality of the rotor 12 and the rotor hole 24.
[0035] In a specific embodiment, the positioning structure 23 is provided on the column 22, and the positioning structure 23 includes at least two positioning posts 231, at least one of which is in cooperation with the outer surface of the stator core 11, and at least one of which is in positioning cooperation with the inner surface of the stator core 11. With such a setting, the stator core 11 is restricted by the positioning posts 231 on both the inner and outer sides to achieve positioning in the radial direction, ensuring the coaxiality of the rotor 12 and the rotor hole 24. Among them, the "outer surface" refers to the surface of the stator core 11 facing away from the rotor 12, and the "inner surface" refers to the surface of the stator core 11 facing the rotor 12.
[0036] In this embodiment, the positioning structure 23 includes three positioning posts 231 distributed at the three vertices of a triangle. Two of the three positioning posts 231 are engaged with the inner surface of the stator core 11, and the other one is engaged with the outer surface of the stator core 11 for positioning. In this way, the three positioning posts 231 not only provide a positioning function but also provide three-point support for the stator core 11, making the installed structure more stable.
[0037] At least two sets of the positioning structure 23 are provided, and two sets of the positioning structure 23 can be arranged at an interval of 180°. In this way, multi-point positioning can be achieved, and the positioning accuracy can be further improved. The positioning structure 23 can be provided with two sets, three sets or four sets, and the present application does not make specific limitations thereto.
[0038] Please continue to refer to Figure 1 , in one embodiment, the motor heat insulation structure 100 further includes a heat insulation member 40, and the heat insulation member 40 is fixedly arranged between the motor 10 and the heating plate 20. The heat insulation member 40 can block the heat radiated from the heating plate 20, which is beneficial to reducing the heat transferred from the heating plate 20 to the motor 10. The heat insulation member 40 can be made of a plastic material or other materials with a relatively low heat conductivity.
[0039] The fixing method of the heat insulation member 40 is not limited. In this embodiment, the heat insulation member 40 is connected to the heating plate 20, including but not limited to screw connection. The heat insulation member 40 is provided with a first through hole 41 for the rotor 12 to pass through and a second through hole 42 for the connecting member 30 to pass through. The number of the second through holes 42 is the same as the number of the connecting members 30.
[0040] Please refer to Figure 4 and Figure 5 , Figure 4 is a top view of the heating plate 20. Figure 5 is a schematic diagram of another view angle of the heating plate 20.
[0041] In one embodiment, as Figure 4 shown, a heating tube 25 is arranged in the disc-shaped main body 21, and there is a gap between the heating tube 25 and the column 22. That is to say, the column 22 is not in direct contact with the heating tube 25, reducing heat transfer.
[0042] In one embodiment, as Figure 5 shown, the thickness of the part of the disc-shaped main body 21 where the column 22 is provided is smaller than the thickness at other parts. In the embodiment shown in Figure 5 , the column 22 is arranged in a circular area 26 on the disc-shaped main body 21, and the thickness of the circular area 26 is smaller than the thickness at other areas. In this way, heat accumulation at this place can also be reduced, thereby reducing the heat transferred to the column 22.
[0043] The present application also provides a cooking machine (not shown), which includes but is not limited to a wall breaker. The cooking machine includes a main body and a cup assembly, and the main body includes the motor heat insulation structure 100 as described above.
[0044] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.
Claims
1. A motor heat insulation structure, characterized in that, Comprising: A motor (10), including a stator core (11), and the stator core (11) is provided with a stator hole (110); A heating plate (20), provided with a heating plate hole (201) coaxial with the stator hole (110), the heating plate hole (201) is arranged as a stepped hole, one end of the heating plate hole (201) close to the stator hole (110) is a large hole (201a), and one end far from the stator hole (110) is a small hole, and the small hole (201b) is an internal threaded hole; A connecting member (30), passing through the stator hole (110) and the large hole (201a), and being threadedly connected to the internal threaded hole.
2. The heat insulation structure according to claim 1, characterized in that, The internal threaded hole is a blind hole, and there is a gap between the connecting member (30) and the bottom of the internal threaded hole, and the gap is larger than the depth of the large hole (201a).
3. The heat insulation structure according to claim 1 or 2, characterized in that, The motor heat insulation structure (100) further includes a heat insulation member (40), and the heat insulation member (40) is fixedly arranged between the motor (10) and the heating plate (20).
4. The heat insulation structure according to claim 3, characterized in that, The heat insulation member (40) is fixedly connected to the heating plate (20).
5. The heat insulation structure according to claim 1 or 2, characterized in that The heating plate (20) includes a disc-shaped main body (21) and a column (22) extending from the disc-shaped main body (21) towards the motor (10), the disc-shaped main body (21) is provided with a heating tube (25), there is a gap between the heating tube (25) and the column (22), and the column (22) is provided with the heating plate hole (201).
6. The heat insulation structure according to claim 5, characterized in that, The thickness of the part of the disc-shaped main body (21) where the column (22) is provided is smaller than the thickness of other parts.
7. The heat insulation structure according to claim 1 or 2, characterized in that, The heating plate (20) is further provided with a rotor hole (24) and a positioning structure (23), and the positioning structure (23) is in radial positioning cooperation with the stator core (11) in the rotor hole (24).
8. The heat insulation structure according to claim 7, characterized in that The positioning structure (23) includes at least two positioning posts (231), at least one of them is in cooperation with the outer surface of the stator core (11), and at least one of them is in positioning cooperation with the inner surface of the stator core (11).
9. The heat insulation structure according to claim 8, characterized in that, The positioning structure (23) includes three of the positioning posts (231) distributed at the three vertices of a triangle, two of them are in cooperation with the inner surface of the stator core (11), and one of them is in positioning cooperation with the outer surface of the stator core (11); and / or The positioning structure (23) is provided with at least two groups, and two groups of the positioning structures (23) are arranged at an interval of 180°.
10. A cooking machine, characterized in that, Including the motor heat insulation structure (100) according to any one of claims 1 to 9.