CN216020648U - Food processing machine - Google Patents

Abstract

The utility model relates to the technical field of food processing devices, and discloses a food processing machine which comprises a processing cup assembly and a motor, wherein the processing cup assembly is provided with a processing cutter assembly, the motor is used for driving the processing cutter assembly to rotate, the motor comprises a winding, the processing cup assembly comprises a cup body and a heating plate arranged at the bottom of the cup body, a heating pipe is arranged below the heating plate, the motor is arranged below the heating pipe, and a heat insulation piece for separating the winding from the heating pipe is arranged between the heating pipe and the output end of the motor. Under the prerequisite that heating tube and motor are in same cavity, through be provided with the heat insulating part that separates winding and heating tube between the output of heating tube and motor, this heat insulating part is used for assuming the heat radiation that the heating tube produced, avoids the heat radiation that the heating tube produced directly to disperse to the winding, and the overheated fused risk of effectual reduction winding is favorable to promoting the life of motor.

Description

Food processing machine

Technical Field

The utility model relates to the technical field of food processing devices, in particular to a food processing machine.

Background

With the improvement of living standard and the acceleration of life rhythm of people, the food processor is popular to users as a kitchen utensil with high crushing efficiency.

The existing food processor comprises a main machine and a processing cup assembly, wherein the processing cup assembly and the main machine are respectively in coupling connection through an upper coupler and a lower coupler. Wherein, processing cup subassembly is including processing the cup and locating the cup seat of processing the cup below. In order to embody the ultra-thinness of the host and improve the user experience, a plurality of researchers set the motor in the cup holder, and the output end of the motor can be in transmission connection with a processing cutter in the processing cup. Wherein, the motor includes stator module, the rotor subassembly, carbon brush box and commutator, stator module includes stator winding, the rotor subassembly includes the winding, carbon brush box and commutator setting are in the position of keeping away from the output of motor, and stator module and rotor subassembly setting are in the position of the output that is close to the motor, it is big to lead to motor complete machine structure to present to be close to output weight, keep away from the characteristics that output weight is little, the motor focus is high, the shake phenomenon in the operation in-process is serious, lead to complete machine poor stability, the vibration is big.

In addition, because the heating component is arranged in the cup seat, the heating component is positioned above the motor and is positioned in the same space. Therefore, the stator winding and the winding of the motor are very close to the heating assembly, and the stator winding and the winding are overheated and melted to fail in the past, so that the service life of the motor is seriously shortened.

Disclosure of Invention

In order to solve one or more technical problems in the prior art or at least provide a beneficial choice, the utility model provides a food processor, which reduces the overheating damage of a heating pipe to a winding of a motor by arranging a heat insulation component on the premise that the heating pipe and the motor are in the same cavity, and prolongs the service life of the motor.

In order to achieve the purpose, the utility model provides a food processing machine which comprises a processing cup assembly and a motor, wherein the processing cup assembly is provided with a processing cutter assembly, the motor is used for driving the processing cutter assembly to rotate, the motor comprises a winding, the processing cup assembly comprises a cup body and a heating plate arranged at the bottom of the cup body, a heating pipe is arranged below the heating plate, the motor is arranged below the heating pipe, and a heat insulation piece for separating the winding from the heating pipe is arranged between the heating pipe and the output end of the motor.

Preferably, the motor further includes a carbon brush box, a commutator, and an iron core wound by the winding, the carbon brush box and the commutator are disposed at a position close to an output end of the motor with respect to the iron core, and the heat insulating member includes the carbon brush box.

Preferably, the brush device further comprises an upper bracket arranged at the output end of the stator assembly close to the motor, and the carbon brush box is arranged on the upper bracket.

Preferably, the motor has a heat insulation gap spaced apart from the heating plate where the brush box and the commutator are provided.

Preferably, the heat insulation member is a plate-shaped structure which penetrates through an output shaft of the motor and axially covers the winding, and a vertical projection of the winding falls within a vertical projection range of the heat insulation member.

Preferably, the motor further comprises an iron core wound by the winding and an upper bracket arranged at the output end of the iron core close to the motor, and the heat insulation piece is covered on the upper bracket.

Preferably, the motor is including locating the carbon brush box on the upper bracket, the heat insulating part encloses and establishes the output of carbon brush box and motor forms the notch cuttype structure, the lower terminal surface of heat insulating part with the up end laminating of carbon brush box sets up.

Preferably, the heat insulation piece extends from the upper bracket to the tail part of the motor to laterally shield the winding on one side of the output end of the motor.

Preferably, still including enclosing establish the cup of heating plate, be equipped with the confession on the heat insulating part the through-hole that the output shaft of motor wore out, the heat insulating part follows the through-hole begins to enclose and establishes and extend to the edge of cup, so that the heat insulating part separates along the axial heating tube with the winding.

Preferably, the heating tube is wrapped by the heat insulation piece, and the heat insulation piece and the heating tube are in clearance fit.

The above technical scheme of this application has following beneficial effect:

1. because the motor is located the heating tube below, the heating tube is in same cavity with the motor promptly, and the motor is the interior cutter unit pivoted of drive processing cup subassembly, that is to say that the output of motor is close to and sets up in the heating tube below to guarantee motor drive's stability and the normal operating of motor. However, in the working process of the food processor, the heat radiation generated by the heating tube can be emitted to the winding, and when the winding is in a high-temperature environment for a long time, the winding is overheated and melted to fail, so that the service life of the motor is seriously shortened. For this reason, among this technical scheme, through be provided with the heat insulating part that separates winding and heating tube between the output of heating tube and motor, this heat insulating part is used for assuming the heat radiation that the heating tube produced, avoids the heat radiation that the heating tube produced directly to disperse to the winding on, the overheated melting risk of effectual reduction winding is favorable to promoting the life of motor.

2. Through setting up carbon brush box and commutator in the position that is close to the output, reduce the weight of the output of motor, guarantee that the processing cutter who is connected with the output of motor can be driven by the motor with low load, set up the position of keeping away from the output of motor for carbon brush box and commutator with great stator core of weight and rotor core, make the motor focus move down, thereby improve the stability of motor installation in the host computer, under food preparation machine's operating condition, because the motor focus is low, make the shake phenomenon when the motor operates reduce, and then reduced the vibration transmission phenomenon. Meanwhile, the heat insulation piece is arranged to be a carbon brush box, namely, the heating tube and the winding are separated at least through the carbon brush box, and the heating tube and the winding can also be separated together through the carbon brush box and the commutator. The carbon brush box and the commutator are indispensable parts in the motor, so that the carbon brush box and the commutator can realize the functions of the carbon brush box and the commutator and can be used as a heat insulation piece, the influence of the heating tube on the winding is reduced, the structure is simple, and the cost of the motor is reduced.

3. The food processor comprises an upper bracket which is arranged on the iron core and close to the output end of the motor, the carbon brush box is arranged on the upper bracket, on one hand, the upper bracket can fix the carbon brush, the upper bracket forms a supporting structure of the carbon brush, the reliable fixation of the carbon brush is ensured, the assembly of the carbon brush and the stator component is more compact, and the axial height of the motor is further shortened; on the other hand, the mounting structure of the carbon brush at the output end of the motor can be simplified, the weight of the upper part of the motor is reduced, and the output end of the motor can be in a bottom load working state.

4. The motor is in setting up carbon brush box with commutator department has with the thermal-insulated clearance that the heating plate is separated from, and the setting of thermal-insulated clearance makes the separation distance further enlarge between the winding of heating plate and motor, reduces the heat that the heating plate transmitted to the winding through the increase distance, makes the winding keep the stability of temperature, and then ensures the normal operating of motor. And, the existence of this thermal-insulated clearance still reduces the heat around the motor, can avoid outside heat to influence the radiating effect of motor.

5. The heat insulation piece is a plate-shaped structure which penetrates through the output shaft of the motor and axially covers the winding, so that the heat radiation of the temperature rise of the heating tube can be firstly emitted to the heat insulation piece. And the winding is covered by the heat insulation piece axially, the vertical projection of the winding falls into the vertical projection range of the heat insulation piece, no direct contact part exists between the winding and the heating tube, the heat radiation is difficult to be transmitted to the winding through the heat insulation piece, and the heat insulation protection of the winding is effectively realized.

6. In order to simplify the fixing structure of the heat insulation piece and facilitate the installation of the heat insulation piece, the heat insulation piece is covered on the upper bracket. Therefore, heat generated by the heating tube can be firstly dissipated to the heat insulation piece, then transferred to the upper support and finally possibly dissipated to the winding, and therefore heat insulation protection of the winding is improved.

7. On locating the upper bracket with the carbon brush box, the output that the heat insulating part encloses and establishes carbon brush box and motor forms the notch cuttype structure, and the upper bracket realizes the fixed of carbon brush box, the mounting structure of simplifying the carbon brush box on the one hand, and on the other hand carbon brush box has realized spacing to the axial of heat insulating part, plays the axial support to the heat insulating part. Simultaneously the heat insulating part is the notch cuttype structure, the lower terminal surface of heat insulating part with the up end laminating of carbon brush box is established, has further laminated the outer fringe of upper bracket and carbon brush box, guarantees the stability of heat insulating part. Moreover, the carbon brush box is made of bakelite which has a heat insulation effect, so that the heat insulation piece forms a first layer of separation on heat radiation of the heating tube, and the carbon brush box forms a second layer of separation on heat radiation, thereby further enhancing the heat insulation protection on the winding.

8. In addition to the axial direction of the motor, the heating tube has a thermal influence on the upper end surface of the winding, and also on the side surface of the winding, especially on the exposed winding at the output end of the motor. In order to prevent the heat radiation of the heating tube from thermally damaging the side part of the winding, the heat insulation piece is arranged to extend from the upper bracket to the tail part of the motor to laterally shield the winding on one side of the output end of the motor, so that the heat insulation piece forms lateral shielding for the winding on one side of the output end of the motor.

9. In order to simplify the assembly steps on one side of the motor and realize the heat insulation protection effect on the winding, a through hole for the output shaft of the motor to penetrate through is arranged on the heat insulation piece, and the heat insulation piece is arranged around the through hole and extends to the edge of the cup seat. Therefore, on one hand, the heat insulation piece only needs to be fixedly arranged on the cup base without considering the installation relation with the components on the motor, and only the motor is ensured not to interfere with the heat insulation piece, so that the assembly steps are simplified; on the other hand, the heat insulating part is only provided with a through hole through which the output shaft of the power supply machine penetrates out, heat generated by the heating tube is difficult to dissipate to the winding, hot gas is gathered in a cavity formed by the heat insulating part, the heating plate and the cup base, and the heat insulating effect on food materials in the processing cup can be achieved after power failure.

10. In order to reduce the heat loss of the heating pipe, the heat energy of the heating pipe is transmitted into the cup body as much as possible, and the heating pipe below the heating plate is wrapped. Like this heating tube is located the part of heating plate laminating, makes its steam also king heating plate direction give off through the parcel, promotes the heating efficiency of heating tube. Simultaneously, in order to prevent that heat insulating part and heating tube laminating from taking place to interfere, harm respective function, still set up heat insulating part with be clearance fit between the heating tube.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a motor of the food processor according to an embodiment of the present invention.

Fig. 2 is an exploded view of the motor of the food processor according to another embodiment of the present invention.

Figure 3 is a cross-sectional view of a process cup assembly including a motor in accordance with one embodiment of the present invention.

Figure 4 is a cross-sectional view of a process cup assembly including a motor in accordance with another embodiment of the present invention.

Figure 5 is a cross-sectional view of a process cup assembly including a motor in accordance with yet another embodiment of the present invention.

Figure 6 is a cross-sectional view of a process cup assembly including a motor in accordance with yet another embodiment of the present invention.

Wherein:

1-motor, 11-stator component, 111-stator core, 112-stator winding, 12-rotor component, 121-rotor core, 122-rotor winding, 13-carbon brush box, 14-commutator, 15-avoiding part, 16-upper bracket, 161-frame body, 162-bridge part, 163-mounting part, 164-bearing chamber, 165-connecting rib, 166-mounting cavity, 17-lower bracket, 18-output end of motor, 181-output shaft of motor;

2-processing a cup component, 21-a heating pipe, 22-a heat insulation gap, 23-a cup body, 231-a cup seat, 232-a through hole, 24-a processing knife component and 25-a heating plate;

3-heat insulation.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The following embodiments are specifically adopted:

as shown in fig. 1 to 6, the present invention provides a food processor, which includes a processing cup assembly 2 having a processing knife assembly 24, a motor 1 for driving the processing knife assembly 24 to rotate, and a main machine (not shown in the drawings) cooperating with the processing cup assembly 2, wherein the motor 1 includes a stator assembly 11, a rotor assembly 12, a carbon brush box 13, and a commutator 14, the stator assembly 11 includes a stator core 111 wound with a stator winding 112, and the rotor assembly 12 includes a rotor core 121 wound with a rotor winding 122 at the same radial height.

For convenience of description, the stator winding 112 and the rotor winding 122 are collectively referred to as a winding, that is, the winding described in this specification may include the stator winding 112 and the rotor winding 122, or may include only the stator winding; the stator core 111 and the rotor core 122 are collectively referred to as a core, that is, the core described in this specification may include the stator core 111 and the rotor core 122, or may include only the stator core 111, for example, a dc brushless motor includes only the stator core 111. Therefore, the foregoing description of the electric machine 1 may also be such that the electric machine 1 comprises windings and a core.

It should be noted that, in the present application, the relationship between the processing cup assembly 2 and the main machine is not specifically limited, but the motor 1 is limited to be disposed on the processing cup assembly 2. For example, the food processor described herein may be a split type food processor, the bottom of the processing cup assembly may be provided with a lower coupler, the main machine may be provided with an upper coupler, and the processing cup assembly and the main machine may be mounted by coupling the upper and lower couplers. Of course, the food processor described in the present application may also be an integrated food processor, and the processing cup assembly and the main machine are integrated.

Because the stability of winding temperature has played the important role to whether motor 1 can normally operate, all set up in the inside structure of processing cup subassembly 2 to heating plate 25 and motor 1, the temperature rise of heating tube 21 of heating plate 25 leads to the winding very easily to overheat the damage, reduces motor 1's life. In order to solve this problem, in some embodiments of the application, as shown in fig. 3 to 6, in the food processor according to the present invention, the processing cup assembly 2 includes a cup body 23 and a heating plate 25 disposed at the bottom of the cup body 23, a heating coil 21 is disposed below the heating plate 25, and the motor 1 is disposed below the heating coil 21, that is, the motor 1, the heating plate 25 and the heating coil 21 are in the same cavity, and on this basis, an insulating member 3 for separating the winding from the heating coil 21 is disposed between the heating coil 21 and the output end 18 of the motor.

In this embodiment, the motor 1 is disposed in the processing cup assembly 2, specifically, the motor 1 is disposed below the heating tube 21, that is, the heating tube 21 and the motor 1 are in the same cavity. Because the motor 1 is positioned below the heating tube 21, and the motor 1 drives the processing cutter assembly 24 in the processing cup assembly 2 to rotate. That is, the output end 18 of the motor is closely arranged below the heating tube 21 to ensure the driving stability of the motor 1 and the normal operation of the motor. However, in the working process of the food processor, the heat radiation generated by the temperature rise of the heating tube 21 can be emitted to the winding, and when the winding is in a high-temperature environment for a long time, the winding is overheated and melted to fail, so that the service life of the motor is seriously shortened.

For this reason, in the present embodiment, on the premise that the heating tube 21 and the motor 1 are in the same cavity, the heat insulating member 3 for separating the winding from the heating tube 21 is provided between the heating tube 21 and the output end 18 of the motor. This heat insulating part 3 is used for assuming the heat radiation that heating tube 21 produced, avoids the heat radiation that heating tube 21 produced directly to disperse to the winding, and the overheated fused risk of effectual reduction winding is favorable to promoting the life of motor.

Further, current food preparation machine's motor, set up stator module and rotor subassembly in the position of being close to the output of motor usually, and set up carbon brush and commutator at the downside, lead to the host computer to be big-end-up, the structure that the weight is lighter down, cause the motor at the during operation poor stability, the easy vibration that takes place, the poor stability of complete machine, and stator module and rotor subassembly occupy a large amount of, when the motor is applied to in the food preparation machine, can interfere with the electric connection structure of host computer and processing cup subassembly mutually, for avoiding interfering, inevitably need increase the axial distance between motor and the processing cup subassembly, be unfavorable for the miniaturization of product.

To solve the above problem, in some embodiments of the present application, as shown in fig. 3, the motor 1 further includes a carbon brush box 13, a commutator 14, and a core wound by the winding, and the carbon brush box 13 and the commutator 14 are disposed near an output end 18 of the motor with respect to the core. The iron core with larger weight is arranged at the position far away from the output end 18 of the motor relative to the carbon brush box 13 and the commutator 14, so that the gravity center of the motor 1 moves downwards, the stability of the motor 1 installed in the main machine 2 is improved, and in the working state of the food processor, the vibration phenomenon during the operation of the motor 1 is reduced due to the low gravity center of the motor 1, and the vibration transmission phenomenon is further reduced.

In a preferred embodiment, the core includes a stator core 111 and a rotor core 122, and the carbon brush box 13 and the commutator 14 are disposed near the output end 18 of the motor with respect to the stator core 111 and the rotor core 122, respectively. When the motor 1 is applied to a food processor, the output end 18 of the motor is connected to a processing tool set for processing food materials, and the processing tool is driven to rotate by the motor 1. The carbon brush box 13 and the commutator 14 are arranged at positions close to the output end to reduce the weight of the output end 18 of the motor, and ensure that the processing tool connected with the output end 18 of the motor can be driven by the motor 1 with low load, thereby ensuring the reliability of power transmission.

Meanwhile, the heat insulating member 3 includes a carbon brush case 13. In one embodiment of the application, the thermal insulation 3 is provided as a carbon brush box 13, that is to say the heating tube 21 is separated from the winding by the carbon brush box 13. It will be appreciated that the heat pipe 21 and the winding may also be separated together by the carbon brush box 12 and the commutator 14 as the heat insulator 3. Because the carbon brush box 13 and the commutator 14 are indispensable parts in the motor, the carbon brush box 13 and the commutator 14 can realize the functions of the motor and can be used as a heat insulation piece, the influence of the heating tube 21 on the winding is reduced, the structure is simple, and the cost of the motor is reduced.

In a preferred embodiment of the present application, the carbon brush box 13 and the commutator 14 are disposed between the heat pipe 31 and the rotor winding as a heat insulator to form a structure for separating the heat pipe 21 and the winding (including the rotor winding and the stator winding) and reduce the heat transfer from the heat pipe 21 to the winding, particularly the stator winding located at the outer side, so as to maintain the temperature of the winding stable and thus ensure the normal operation of the motor 1.

In addition, the upper bracket 16 is disposed above the stator assembly 11, and a downward opening of the upper bracket forms a mounting cavity 166, the mounting cavity 166 can accommodate part of the structure of the motor 1 (such as the carbon brush box 13 and the commutator 14), which is beneficial to reducing the axial height of the motor 1, and the upper bracket 16 can play a role in limiting and fixing the stator assembly 11 in the circumferential direction of the stator assembly 11. The carbon brush box 13 is arranged on the upper support 16, and on one hand, the upper support 16 can fix the carbon brush to form a support structure of the carbon brush box 13, so that the carbon brush box 13 is reliably fixed, the assembly of the carbon brush box 13 and the stator assembly 11 is more compact, and the axial height of the motor 1 is further shortened; on the other hand, the installation structure of the carbon brush box 13 at the output end 18 of the motor can be simplified, the upper weight of the motor 1 is reduced, and the output end 18 of the motor can be in a bottom load working state.

As a preferred embodiment, as shown in fig. 1, the motor 1 forms the relief 15 at the same radial height as the carbon brush box 13 and the commutator 14, and the windings include a stator winding 112 and a rotor winding 122.

The motor 1 forms the avoidance part 15 at the same radial height of the carbon brush box 13 and the commutator 14, and the avoidance part 15 can be used for matching assembly to avoid the structures of a heat radiation fan and the like of the motor 1, so that the occupied space of the motor 1 is reduced.

As a preferred embodiment, as shown in fig. 1 and 2, the upper bracket 16 includes a bracket body 161 and a bridge portion 162 straddling opposite sides of the bracket body 161, the bridge portion 162 has mounting portions 163 disposed opposite to each other in the radial direction, the brush box 13 is fixed to and inserted through the mounting portions 163, and the commutator 14 is disposed between the mounting portions 163.

The frame body 161 of the upper bracket 16 is a hollow structure with a hollow middle part, and is sleeved on the circumference of the stator core 111, the bridge part 162 is erected on the opposite side of the frame body 161, the frame body 161 and the bridge part 162 form a mounting cavity 166 with a downward opening, the mounting cavity 166 is used for accommodating partial structures (such as the carbon brush box 13, the commutator 14 and the like) of the motor 1, the bridge part 162 is provided with mounting parts 163 which are arranged oppositely in the radial direction, the mounting parts 163 are formed between the hollow structures formed by connecting the bridge part 162 and the frame body 161, the carbon brush box 13 can be relatively penetrated and fixed, the commutator 14 can be arranged between the two mounting parts 163, so that the carbon brush box 13 and the commutator 14 can be compactly mounted in the same radial direction, and a space is provided so as to conveniently form the avoiding part 15 in the same radial direction in which the carbon brush box 13 and the commutator 14 are arranged.

As a more preferable embodiment, as shown in fig. 1 and 2, the bridge portion 162 is provided with a bearing chamber 164, and the mounting portion 163 is provided with a connecting rib 165 connecting the bearing chamber 164 and the frame body 161.

A bearing chamber 164 is provided in the bridge 162, and a bearing is provided in the bearing chamber 164, through which the shaft of the rotor assembly 12 passes and extends out of the bearing chamber 164 to connect with a machining tool. The connecting ribs 165 extend from the upper end face of the bridging portion 162 to the frame body 161, and form radially opposite mounting portions 163 between the bridging portion 162 and the frame body 161, the connecting ribs 165 can enhance the structural strength of the upper support 16, the stability of connection between the bearing chamber 164 and the frame body 161 is ensured, and the radially opposite mounting portions 163 are formed in gaps among the connecting ribs 165, so that a radial space is provided for mounting the carbon brush box 13 and the commutator 14, and the space utilization rate is improved. Preferably, the bearing in the bearing chamber 164 is a ball bearing or a self-aligning oil-retaining bearing, and the thickness of the connecting rib 165 is 2-6mm, preferably 4mm, so as to improve the connection strength to the structures of the bearing chamber 164, the carbon brush box 13 and the like and enhance the reliability of the motor 1.

The shape of the connecting rib 165 is not particularly limited in the present invention, and may be a shape as shown in fig. 1, extend obliquely from the bridge portion 162 forming the bearing chamber 164 toward the frame body 161, or a shape as shown in fig. 2, and connect and surround the bearing chamber 164 and the frame body 161.

In some embodiments of the present application, as shown in fig. 3 to 6, the motor 1 forms an insulating gap 22 with respect to the heating plate 25 where the brush box 13 and the commutator 14 are provided. The motor 1 is provided with the heat insulation gap 22 which is separated from the heating plate 25 at the positions where the carbon brush box 13 and the commutator 14 are arranged, the arrangement of the heat insulation gap 22 further expands the separation distance between the heating plate 25 and the winding of the motor 1, the heat transferred from the heating pipe 21 of the heating plate 25 to the winding is reduced by increasing the distance, the winding is kept stable in temperature, and the normal operation of the motor 1 is further ensured. In addition, the existence of the heat insulation gap also reduces the heat around the motor 1, and the influence of external heat on the heat dissipation effect of the motor 1 can be avoided. In the preferred embodiment of the present application, the windings include stator windings 112 and rotor windings 122.

It should be noted that the utility model is not limited in particular to the form of the thermal insulation gap 22, in one embodiment, the thermal insulation gap 22 is in the form of a thermal insulation chamber with a certain space between the motor 1 and the heating plate 25, and in another embodiment, the thermal insulation gap 22 is formed between the carbon brush box 13 and the motor cover of the motor 1, or between the motor cover and the bottom of the heating plate 25, and the thermal insulation gap 22 between the carbon brush box 13 and the commutator 14 relative to the heating plate is formed by the gap distance between the structures.

It should be noted that, the specific structure of the motor cover is not limited in this application, for example, the motor cover may be equivalent to the heat insulating member 3 in fig. 4, and may also be a cover that is used to cover the motor to form axial and radial limitations on the motor so as to reduce vibration of the motor and reduce noise.

In some embodiments of the present application, as shown in fig. 4, the thermal insulation member 3 is a plate-like structure passing through the output shaft 181 of the motor and axially covering the winding, and the vertical projection of the winding falls within the range of the vertical projection of the thermal insulation member 3. Specifically, the windings include a stator winding 112 and a rotor winding 122. By providing the heat insulating member 3 as a plate-shaped structure which passes through the output shaft 181 of the motor and axially covers the winding, the heat radiation of the temperature rise of the heating tube 21 is first emitted to the heat insulating member 3, and the plate-shaped structure directly blocks the heat radiation. Meanwhile, the heat insulation piece 3 axially covers the winding, the vertical projection of the winding falls into the vertical projection range of the heat insulation piece 3, a position which is not directly contacted with the heating pipe is arranged between the winding and the heating pipe, the heat insulation piece 3 completely covers the stator winding and the rotor winding, heat radiation is difficult to be transmitted to the stator winding 112 and the rotor winding 122 through the heat insulation piece, and heat insulation protection of the stator winding 112 and the rotor winding 122 is effectively realized.

It will be appreciated that the winding may also comprise only stator windings 122, the insulation 3 being a plate-like structure passing through the output shaft 181 of the machine and covering the stator windings 122 only axially.

It is understood that the plate-shaped structure can be a single-layer plate, a multi-layer plate, a plate-shaped structure with a step shape, and the like.

Further, the motor 1 further comprises a core wound by the winding and an upper bracket 16 arranged on the core near an output end 18 of the motor. Specifically, in the present embodiment, the core includes a stator core 111 and a rotor core 121, and the winding includes a stator winding 112 and a rotor winding 122, in which the stator core 111 is wound by the stator winding 112, and the rotor core 121 is wound by the rotor winding 122. In order to simplify the fixing structure of the heat insulator 3 and facilitate the installation of the heat insulator 3, the heat insulator 3 is covered on the upper bracket 16. Thus, the heat generated by the heat generating pipe 21 is firstly dissipated to the heat insulating member 3, secondly transferred to the upper bracket 16, and finally possibly dissipated to the stator winding 112 and the rotor winding 122, thereby improving the heat insulation protection of the stator winding 112 and the rotor winding 122.

It will be appreciated that the winding may comprise only stator windings 112 and the core may comprise only stator core 111, the upper bracket 16 being disposed on the stator core 111 adjacent the output 18 of the machine.

For the specific position arrangement and structure of the thermal insulation 3 passing through the output shaft 181 of the motor and axially covering the windings, the following two embodiments are developed in the present application, but not limited to these two embodiments:

in one embodiment, the motor 1 includes a carbon brush box 13 disposed on an upper bracket 16, the heat insulation member 3 surrounds the carbon brush box 13 and the output end 18 of the motor to form a stepped structure, and the lower end face of the heat insulation member 3 is attached to the upper end face of the carbon brush box 13. Specifically, the stepped structure is consistent with the outer edge structures of the upper bracket 16 and the carbon brush box 13, so that the stepped structure is axially mounted at the output end 18 of the motor.

On locating upper bracket 16 through with carbon brush box 13, the output 18 that heat insulating part 3 encloses and establishes carbon brush box 13 and motor forms the notch cuttype structure, and upper bracket 16 realizes the fixed of carbon brush box 13, simplifies the mounting structure of carbon brush box 13 on the one hand, and on the other hand carbon brush box 13 has realized spacing to the axial of heat insulating part 3, plays the axial support to heat insulating part 3. Simultaneously, heat insulating part 3 is the notch cuttype structure, the lower terminal surface of heat insulating part 3 with the up end laminating of carbon brush box 13 sets up, has further laminated the outer fringe of upper bracket 16 and carbon brush box 13, guarantees heat insulating part 3's stability. Moreover, the material of the carbon brush box 13 is usually bakelite, which has a heat insulation effect, so that the heat insulation piece 3 forms a first layer of separation for heat radiation of the heating tube 21, and the carbon brush box 13 forms a second layer of separation for heat radiation, thereby further enhancing the heat insulation protection for the winding. Preferably, the windings include a stator winding 112 and a rotor winding 122.

In another embodiment, referring to fig. 4, based on the above embodiment, the heat insulation member 3 extends from the upper bracket 16 to the rear of the motor 1 to laterally shield the winding on the output end 18 side of the motor. Specifically, the windings include a stator winding 112 and a rotor winding 122, and the stator winding 112 is located outside the rotor winding 122. That is to say, in this embodiment, the heat insulating member 3 not only passes through the output shaft 181 of the motor and axially covers the winding stator winding 112 and the rotor winding 122, the vertical projection of the stator winding 112 and the rotor winding 122 falls into the vertical projection range of the heat insulating member 3, the heat insulating member 3 encloses the carbon brush box 13 and the output end 18 of the motor to form a ladder-shaped structure, and the heat insulating member 3 extends from the upper bracket 16 to the tail of the motor 1 to laterally shield the winding on the side of the output end 18 of the motor.

Since the heating tube 21 has a thermal influence on the upper end surface of the winding, in addition to the axial direction of the motor 1, also on the side surfaces of the winding, in particular the exposed winding at the output end 18 of the motor. In this embodiment, in order to prevent the heat radiation of the heating tube from thermally damaging the side portions of the stator winding 112 and the rotor winding 122, the heat insulating member 3 is arranged to extend from the upper bracket 16 to the rear portion of the motor 1 to laterally shield the stator winding 112 and the rotor winding 122 on the side of the output end 18 of the motor, so that the heat insulating member 3 forms a lateral shield for the winding on the side of the output end of the motor.

It can be understood that the heat insulating element 3 may also extend from the upper bracket 16 to the rear of the motor 1 to the lower bracket 17 of the motor 1, so as to form a package for only the lower end opening of the motor 1, which not only can form effective heat insulation protection for the winding, but also can form effective wind guiding.

In some embodiments of the present application, as shown in fig. 5, the food processor further comprises a cup holder 231 enclosing the heating plate 25. In order to simplify the assembly process of the motor 1 and achieve the heat insulation protection effect of the stator winding 112 and the rotor winding 122, in the present embodiment, a through hole 232 is provided on the heat insulation member 3 for the output shaft 181 of the motor to pass through, and the heat insulation member 3 is surrounded by the through hole 232 and extends to the edge of the cup seat 231, so that the heat insulation member 3 axially separates the heating tube 21 and the winding. Preferably, the windings include a stator winding 112 and a rotor winding 122.

It should be noted that, when the heating tube 21 is annular, the heat insulating member 3 also has a circular ring structure with a central through hole, but is not limited to a circular ring, as long as the heat insulating member can block the heating tube and allow the output shaft of the motor to pass through.

In the embodiment, on one hand, the heat insulation piece only needs to be fixedly arranged on the cup seat 231 without considering the installation relation with the components on the motor 1, and only the motor 1 is ensured not to interfere with the heat insulation piece 3, so that the assembly steps are simplified; on the other hand, the heat insulation piece 3 is only provided with a through hole 232 through which the output shaft 18 of the power supply machine penetrates, heat generated by the heating tube 21 is difficult to be dissipated to the stator winding 112 and the rotor winding 122, hot air is gathered in a cavity formed by the heat insulation piece 3, the heating plate 25 and the cup seat 231, and the heat insulation effect on food materials in the processing cup can be achieved after power failure.

In some embodiments of the present application, as shown in fig. 6, the heat insulating member 3 covers the heat generating pipe 21, and the heat insulating member 3 and the heat generating pipe 21 are in clearance fit. In the scheme, in order to reduce the heat loss of the heating pipe 21, the heat energy of the heating pipe 21 is transmitted into the cup body 23 as much as possible, and the heating pipe 21 positioned below the heating plate 25 is wrapped. Like this heating tube 21 is located the part of heating plate 25 laminating, makes its steam also king heating plate 25 direction distribute through the parcel, promotes heating tube 21's heating efficiency. Meanwhile, in order to prevent the heat insulating material 3 from interfering with the heat generating tube 21 and damaging the respective functions, the heat insulating material 3 and the heat generating tube 21 are in clearance fit.

The technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment and the technical solution of one or more other embodiments is within the protection scope of the present invention. Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims (10)

1. The utility model provides a food preparation machine, includes the processing cup subassembly that is equipped with processing knife tackle spare, is used for the drive processing knife tackle spare pivoted motor, the motor includes the winding, processing cup subassembly include the cup with set up in the heating plate of cup bottom, the heating plate below is equipped with the heating tube, the motor set up in the below of heating tube, its characterized in that, be provided with between the output of heating tube and motor with the winding with the thermal-insulated piece that the heating tube separates.

2. The food processor of claim 1, wherein the motor further includes a carbon brush box, a commutator, and a core wound by the windings, the carbon brush box and the commutator being disposed relative to the core proximate an output of the motor, the thermal shield including the carbon brush box.

3. The food processor of claim 2, further comprising an upper bracket disposed on the core proximate the output of the motor, the carbon brush cartridge being disposed on the upper bracket.

4. The food processor of claim 2, wherein the motor has an insulating gap spaced from the heating plate where the brush box and the commutator are located.

5. The food processor of claim 1, wherein the thermal shield is a plate-like structure that passes through the output shaft of the motor and axially covers the windings, the vertical projection of the windings falling within the vertical projection of the thermal shield.

6. The food processor of claim 5, wherein the motor further includes a core wrapped by the windings and an upper bracket disposed on the core proximate the output of the motor, the insulation cover being disposed on the upper bracket.

7. The food processor of claim 6, wherein the motor includes a carbon brush box disposed on the upper bracket, the thermal shield surrounds the carbon brush box and an output end of the motor to form a stepped structure, and a lower end surface of the thermal shield is disposed to be in close contact with an upper end surface of the carbon brush box.

8. The food processor of claim 6, wherein the thermal shield extends from the upper bracket toward the rear of the motor to laterally shield the windings on the output side of the motor.

9. The food processor of claim 1, further comprising a cup housing the heating plate, wherein the heat shield includes a through hole for the output shaft of the motor to pass through, the heat shield surrounding the through hole and extending to an edge of the cup housing such that the heat shield axially separates the heating tube and the winding.

10. The food processor of claim 1, wherein the heat shield surrounds the heat pipe and is a clearance fit with the heat pipe.

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