CN220124529U - Food processor - Google Patents

Abstract

The utility model discloses a food processor, which belongs to the field of household appliances and solves the problem that a crushing motor cannot be flexibly controlled to cool down due to overhigh temperature. The utility model is mainly used for crushing and curing food materials, and can timely acquire the overheat state of the crushing motor and timely flexibly adjust the working state of the crushing motor to protect the crushing motor.

Description

Food processor

Technical Field

The utility model relates to a household appliance, in particular to a food processor.

Background

The existing food processor generally has a heating function for meeting the demands of users, and comprises a heating disc and a crushing motor, wherein the whole machine generates heat radiation to a coil in the crushing motor when being heated by the heating disc in the operation process, and the heat radiation can be overlapped with heat generated by the self work of the crushing motor, so that the temperature of the crushing motor is too high, and the normal work and the service life are influenced. But generally will use temperature-detecting device to carry out temperature detection to the crushing chamber of food processor among the prior art to do not detect crushing motor's temperature, and crushing motor can receive the influence of heater except self heat production, consequently, probably lead to crushing motor's temperature too high, influence normal work and life, consequently, in order to prevent that crushing motor's temperature is too high, appear going out through the temperature controller and detecting crushing motor housing's temperature in the prior art, the temperature controller electricity is connected in crushing motor's control circuit, the temperature controller can jump after crushing motor's temperature reaches predetermined temperature, thereby outage crushing motor, control mode is relatively stiff, machinery, and the temperature controller resets and needs the time delay, wait for the temperature to reduce to the setting value, can cause great influence in the pulping process, lead to the pulping process discontinuous, in addition the temperature controller frequently jumps and breaks easily to damage.

Disclosure of Invention

The utility model aims to provide a food processor, which solves the problem that the temperature of a crushing motor is too high but the temperature of the crushing motor cannot be flexibly controlled to be reduced, and can timely acquire the overheat state of the crushing motor and timely flexibly adjust the working state of the crushing motor to protect the crushing motor.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a food processor, including smashing the chamber, smash motor and control circuit board, smash the intracavity and be equipped with crushing cutter, crushing cutter is by smashing motor drive, control circuit board is connected with crushing motor electricity, the rear end of smashing the output shaft of motor is equipped with the detection device who is used for detecting output shaft temperature, detection device is connected with the control circuit board electricity, the control circuit board has preset motor temperature rise limit value, when detection device detects temperature signal and reaches or surpasses motor temperature rise limit value, the control circuit board adjusts the operating condition of smashing the motor.

After the technical scheme is adopted, the utility model has the following advantages:

according to the utility model, the rear end of the output shaft of the crushing motor is provided with the detection device, and the detection device can directly detect the temperature of the output shaft of the crushing motor, so that the temperature detected by the detection device is more approximate to the actual temperature of the crushing motor, and the detection accuracy of the detection device is improved; in addition, each motor is provided with a fixed temperature rise limit value, the control circuit board is preset with the motor temperature rise limit value, when a temperature signal detected by the detection device reaches or exceeds the motor temperature rise limit value, the control circuit board adjusts the working state of the crushing motor, when the temperature detected by the detection device is too high, the control circuit board can timely control the crushing motor to reduce the rotating speed, flexible control of the power of the crushing motor is realized, the continuous pulping process can be ensured without stopping, the crushing motor can be controlled to stop working according to actual needs, the time of overheat operation of the crushing motor can be effectively reduced, the influence of high temperature on the crushing motor is reduced, and the service life of the crushing motor is prolonged; and after the temperature of smashing the motor drops, the control circuit board can automatically control the smashing motor to lift the rotating speed again, and manual operation of a user is not needed, so that the food processor is more convenient to use, and the experience of the user is improved.

Further, the detection device comprises a temperature sensor and a heat conductor, wherein the heat conductor is positioned at the rear end of the output shaft and conducts heat of the output shaft, and the temperature sensor detects the temperature of the output shaft by detecting the temperature of the heat conductor. By adopting the technical scheme, the heat of the output shaft can be conducted by the heat conductor, so that the temperature of the heat conductor is more approximate to the temperature of the output shaft, the temperature of the output shaft can be obtained by the temperature sensor only by detecting the temperature of the heat conductor, the temperature detection of the detection device is simpler, and the installation difficulty of the temperature sensor can be reduced; in addition, as the size of the temperature sensor is smaller, the temperature sensor is not beneficial to the operation of workers, and the temperature sensor is installed through the heat conductor, the operation space of the temperature sensor can be increased, and the one-time success rate of the workers in installing the temperature sensor is improved, so that the assembly efficiency is improved.

Further, a heat conduction hole is formed in the rear end face of the heat conductor, the temperature sensor is fixed relative to the control circuit board, and a temperature sensing head of the temperature sensor is inserted into the heat conduction hole. By adopting the technical scheme, the temperature sensor is inserted into the heat conducting hole, so that the tightness of the heat conducting hole can be relatively improved, the heat exchange between the heat conducting hole and the outside is further reduced, the heat loss of the heat conducting hole is reduced, the temperature in the heat conducting hole is more approximate to the temperature of the heat conductor, and the detection accuracy of the temperature sensor can be improved on the premise of not contacting the heat conductor; in addition, because the rotating speed of the output shaft is higher during working, the temperature sensor is kept motionless relative to the control circuit board, namely, a relatively static mode is adopted to sense temperature, the lead between the temperature sensor and the control circuit board can be prevented from being broken due to rotation, the temperature sensor and the control circuit board are kept stably and electrically connected, in addition, the fact that components inside the temperature sensor are loosened due to long-term rotation can be avoided, and further the temperature sensor is prevented from being invalid.

Further, the heat conductor is fixedly connected to the rear end of the output shaft, and a gap is formed between the temperature sensing head of the temperature sensor and the heat conducting hole; or, the rear end of the output shaft is provided with a connecting hole, the heat conductor is inserted into the connecting hole and is provided with a gap with the connecting hole, and the heat conductor is fixedly connected with the temperature sensing head of the temperature sensor. By adopting the technical scheme, the heat conductor and the output shaft synchronously rotate, and the temperature sensor is fixed relative to the control circuit board, namely the heat conductor and the temperature sensor relatively rotate, so that the gap between the temperature sensing head and the heat conducting hole can avoid friction between the temperature sensing head and the inner wall of the heat conducting hole, reduce the possibility of damage of the temperature sensing head and prolong the service life of the temperature sensing head; or the heat conductor and the output shaft rotate relatively, and the gap between the heat conductor and the connecting hole can avoid friction between the heat conductor and the inner wall of the connecting hole, reduce the possibility of damaging the heat conductor and prolong the service life of the heat conductor.

Further, the temperature sensor is fixed relative to the control circuit board, the temperature sensor is assembled and connected with the heat conductor through a rolling bearing, the inner ring of the rolling bearing is fixed on the temperature sensor, and the outer ring of the rolling bearing is fixed on the heat conductor; or the temperature sensor is fixed relative to the control circuit board, the heat conductor is fixedly connected with the temperature sensing head of the temperature sensor, the heat conductor is assembled and connected with the output shaft through a rolling bearing, the inner ring of the rolling bearing is fixed on the heat conductor, and the outer ring of the rolling bearing is fixed on the output shaft; or the heat conductor is fixedly connected to the rear end of the output shaft, and the heat conductor is provided with the heat dissipation fan blade. By adopting the technical scheme, the rolling bearing can realize that the heat conductor and the temperature sensor can rotate relatively while being connected with the temperature sensor, or can realize that the heat conductor and the output shaft can rotate relatively while being connected with the heat conductor and the output shaft, the rolling bearing can reduce the mounting difficulty of the temperature sensor or the heat conductor, and the mounting structure of the temperature sensor or the heat conductor is simpler, so that the whole detection device is smaller and lighter, the weight of the detection device is reduced, the influence of the detection device on the crushing motor is reduced, and the energy consumption of the crushing motor is reduced; and secondly, the heat of the crushing motor can be taken away by the air flow formed by the heat dissipation fan blades, so that the heat dissipation effect is realized, the heating speed of the crushing motor is reduced, and the effective working time of the crushing motor can be effectively prolonged.

Further, the detection device is fixed relative to the control circuit board, the detection device is connected with the output shaft in an assembling way through a rolling bearing, an inner ring of the rolling bearing is fixed to the detection device, and an outer ring of the rolling bearing is fixed to the output shaft. By adopting the technical scheme, the detection device is connected with the output shaft through the rolling bearing, meanwhile, the detection device and the output shaft can relatively rotate, the installation difficulty of the detection device is effectively reduced, friction between the detection device and the output shaft can be avoided, and the possibility of damage of the detection device is reduced.

Further, the detection device comprises a temperature sensor, and pins of the temperature sensor are welded and fixed on the control circuit board; or the detection device comprises a temperature sensor, and a lead of the temperature sensor extends to the control circuit board for fixing; alternatively, the food processor is provided with a mounting bracket for fixing the detection device. By adopting the technical scheme, the temperature sensor is fixed through the control circuit board or the mounting frame, so that the stability of the temperature sensor can be improved.

Further, the rear end face of the output shaft is provided with a mounting hole, and the detection device is inserted into the mounting hole to detect the temperature of the output shaft. By adopting the technical scheme, the detection device detects the temperature of the inside of the output shaft through the mounting hole, the temperature of the inside of the output shaft is closer to the actual temperature of the output shaft, and the detection device is inserted into the mounting hole, so that the detection device is positioned in the inside of the output shaft, the detection precision of the detection device can be improved on the premise of not contacting with the output shaft, the control circuit board can more sensitively adjust the working state of the crushing motor, and the time for overheat operation of the crushing motor is reduced.

Further, the detection device comprises a temperature sensor, and a temperature sensing head of the temperature sensor is inserted into the mounting hole; or, the detection device comprises a heat conductor and a temperature sensor, wherein the heat conductor is inserted into the mounting hole to conduct heat of the output shaft, and the temperature sensor detects the temperature of the output shaft by detecting the temperature of the heat conductor. By adopting the technical scheme, the temperature in the mounting hole is closer to the actual temperature of the output shaft, and the temperature sensing head directly detects the temperature in the mounting hole, so that the detection result is closer to the actual temperature of the output shaft on the premise of not contacting the output shaft; or the temperature in the mounting hole is conducted through the heat conductor, and the temperature sensing head reflects the temperature of the output shaft through detecting the temperature of the heat conductor.

Further, the detection device comprises a temperature sensor, the temperature sensor comprises a temperature sensing head, a lead and a sensor shell, the temperature sensing head rotates along with the output shaft and keeps electrically conducted with the lead, and the sensor shell is fixed relative to the control circuit board. By adopting the technical scheme, the temperature sensing head is directly contacted with the output shaft, and the medium of heat conduction between the temperature sensing head and the output shaft can be reduced, so that the consumption of heat in the heat conduction process is reduced, the temperature sensing effect is better, and the sensitivity of the temperature sensor is improved.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a cross-sectional view of a food processor in accordance with the present utility model;

FIG. 2 is a cross-sectional view of a pulverizing motor in a food processor in accordance with the present utility model;

FIG. 3 is an enlarged partial view of portion A of FIG. 2;

FIG. 4 is a cross-sectional view showing the upper arrangement of a pulverizing motor in a food processor in accordance with the present utility model;

FIG. 5 is a cross-sectional view of a comminuting motor of the food processor of the present utility model positioned below;

fig. 6 is a cross-sectional view of a food processor of the present utility model with a water supply assembly and a receiving cup.

Reference numerals: 1 cup body, 11 crushing cavity, 12 cup cover, 2 base, 21 bottom plate, 22 installation gap, 3 crushing motor, 31 output shaft, 311 connecting hole, 32 crushing cutter, 33 heat dissipation fan blade, 34 transmission shaft, 4 detection device, 41 heat conductor, 411 heat conduction hole, 42 temperature sensor, 421 temperature sensing head, 43 antifriction bearing, 431 inner ring, 432 outer ring, 44 lead wire, 5 machine head, 51 top plate, 6 water supply assembly, 7 receiving cup, 8 installing support, 81 holding cavity.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

It should be understood that in the present utility model, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that in the present utility model, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, for example, X and/or Y may represent: x alone, X and Y together, and Y alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising X, Y and Z", "comprising X, Y, Z" means that all three of X, Y, Z comprise, "comprising X, Y or Z" means that one of the three comprises X, Y, Z, and "comprising X, Y and/or Z" means that any one or any two or three of the three comprise X, Y, Z.

The technical scheme of the utility model is described in detail below by specific examples. The following specific embodiments may be combined with or replaced with each other according to actual situations, and the same or similar concepts or processes may not be described in detail in some embodiments.

As shown in fig. 1 to 3, this embodiment provides a food processor, including base 2, cup 1, bowl cover 12, smash chamber 11, smash motor 3 and control circuit board, smash and be equipped with crushing cutter 32 in the chamber 11, crushing cutter 32 is driven by crushing motor 3, control circuit board and crushing motor 3 electricity are connected, cup 1 can dismantle the top of being connected in base 2, cup 1 bottom is equipped with transmission shaft 34, smash cutter 32 installs in transmission shaft 34, smash motor 3 installs in base 2, the front end of the output shaft 31 of smashing motor 3 upwards extends and is connected with transmission shaft 34 and transmits, in order to detect the temperature of smashing motor 3, the rear end of the output shaft 31 of smashing motor 3 is equipped with the detection device 4 that is used for detecting output shaft 31 temperature in this embodiment, detection device 4 is connected with control circuit board electricity, control circuit board adjusts the operating condition of smashing motor 3 according to the temperature signal of detection device 4.

In this embodiment, the rear end of the output shaft 31 of the pulverizing motor 3 is provided with the detection device 4, and the detection device 4 can directly detect the temperature of the output shaft 31 of the pulverizing motor 3, so that the temperature detected by the detection device 4 is closer to the actual temperature of the pulverizing motor 3, and the detection accuracy of the detection device 4 is improved; in addition, each crushing motor 3 has a fixed temperature rise limit value, the control circuit board is preset with the motor temperature rise limit value, when the temperature signal detected by the detection device 4 reaches or exceeds the motor temperature rise limit value, the control circuit board adjusts the working state of the crushing motor 3 according to the temperature signal of the detection device 4, when the temperature detected by the detection device 4 is too high, the control circuit board can timely control the reduction of the rotation speed of the crushing motor 3, flexible control of the rotation speed of the crushing motor 3 is realized, the continuous pulping process can be ensured without stopping, the crushing motor 3 can be controlled to stop working according to actual needs, the time of overheat operation of the crushing motor 3 can be effectively reduced, the influence of high temperature on the crushing motor 3 is reduced, and the service life of the crushing motor 3 is prolonged; and after the temperature of smashing motor 3 drops, control circuit board can automatic control smashing motor 3 promotes power again, need not user's manual operation, makes food processor's use more convenient, improves user's experience and feels, and this embodiment can in time acquire smashing motor 3 overheated state and in time adjust smashing motor 3's operating condition and protect smashing motor 3 through detection device 4.

As shown in fig. 2 and 3, the detecting device 4 in this embodiment includes a temperature sensor 42 and a heat conductor 41, the heat conductor 41 is located at the rear end of the output shaft 31 and conducts heat of the output shaft 31, the temperature sensor 42 detects the temperature of the output shaft 31 by detecting the temperature of the heat conductor 41, the heat conductor 41 can conduct heat of the output shaft 31, the temperature of the heat conductor 41 is closer to the temperature of the output shaft 31, the temperature sensor 42 can obtain the temperature of the output shaft 31 only by detecting the temperature of the heat conductor 41, so that the temperature detection of the detecting device 4 is simpler, and the installation difficulty of the temperature sensor 42 can be reduced; in addition, the temperature sensor 42 is small in size, so that the operation of workers is not facilitated, the temperature sensor 42 is installed through the heat conductor 41, the operation space of the temperature sensor 42 can be increased, the primary success rate of the workers in installing the temperature sensor 42 is improved, and accordingly the assembly efficiency is improved.

In order to improve the detection accuracy of the temperature sensor 42, in this embodiment, the rear end surface of the heat conductor 41 is provided with a heat conducting hole 411, the temperature sensor 42 is fixed relative to the control circuit board, the temperature sensing head 421 of the temperature sensor 42 is inserted into the heat conducting hole 411, and the temperature sensor 42 is inserted into the heat conducting hole 411, so that the tightness of the heat conducting hole 411 can be relatively improved, and further, the heat exchange between the heat conducting hole 411 and the outside is reduced, the heat loss of the heat conducting hole 411 is reduced, the temperature in the heat conducting hole 411 is more close to the temperature of the heat conductor 41, and the detection accuracy of the temperature sensor 42 is improved on the premise that the temperature sensor is not in contact with the heat conductor 41; in addition, since the rotation speed of the output shaft 31 is relatively high during operation, the temperature sensor 42 is kept stationary relative to the control circuit board, that is, a relatively stationary mode is adopted to sense temperature, so that breakage of the lead 44 between the temperature sensor 42 and the control circuit board due to rotation can be avoided, the temperature sensor 42 and the control circuit board are kept stably and electrically connected, and further, loosening of components inside the temperature sensor 42 due to long-term rotation can be avoided, and further failure of the temperature sensor 42 can be avoided.

In addition, in order to improve the temperature performance of the temperature conduction, in this embodiment, the heat conductor 41 is made of aluminum material, and the heat conduction hole 411 is filled with heat conduction silicone grease, so that the temperature conduction between the heat conductor 41 and the output shaft 31 can be more stable and reliable.

As shown in fig. 3, in this embodiment, the heat conductor 41 is fixedly connected to the rear end of the output shaft 31, a gap is formed between the temperature sensing head 421 of the temperature sensor 42 and the heat conducting hole 411, the heat conductor 41 and the output shaft 31 rotate synchronously, and since the temperature sensor 42 is fixed relative to the control circuit board, i.e. the heat conductor 41 rotates relative to the temperature sensor 42, the gap between the temperature sensing head 421 and the heat conducting hole 411 can avoid friction between the temperature sensing head 421 and the inner wall of the heat conducting hole 411, reduce the possibility of damage to the temperature sensing head 421, and improve the service life of the temperature sensing head 421.

It will be understood that, in other embodiments, the rear end of the output shaft 31 may be provided with a connection hole 311, and the heat conductor 41 may be inserted into the connection hole 311 and have a gap with the connection hole 311, where the heat conductor 41 is fixedly connected with the temperature sensing head 421 of the temperature sensor 42, that is, the heat conductor 41 rotates relative to the output shaft 31, and the gap between the heat conductor 41 and the connection hole 311 can avoid friction between the heat conductor 41 and the inner wall of the connection hole 311, reduce the possibility of damage to the heat conductor 41, and improve the service life of the heat conductor 41.

As shown in fig. 3, in this embodiment, the cross section of the heat conducting hole 411 is T-shaped, the rolling bearing 43 is installed at the end with the larger inner diameter of the heat conducting hole 411, the temperature sensor 42 is assembled and connected with the heat conductor 41 through the rolling bearing 43, the inner ring 431 of the rolling bearing 43 is fixed on the temperature sensor 42, the outer ring 432 of the rolling bearing 43 is fixed on the heat conductor 41, the rolling bearing 43 can realize that the heat conductor 41 is connected with the temperature sensor 42 and simultaneously enables the heat conductor 41 and the temperature sensor 42 to rotate relatively, the rolling bearing 43 can reduce the installation difficulty of the temperature sensor 42, and the installation structure of the temperature sensor 42 is simpler, so that the whole detection device 4 is smaller and lighter, the weight of the detection device 4 is reduced, the influence of the detection device 4 on the grinding motor 3 is reduced, and the energy consumption of the grinding motor 3 is reduced.

In other embodiments, the rolling bearing 43 may be disposed in the connection hole 311, the heat conductor 41 is assembled with the output shaft 31 through the rolling bearing 43, the inner ring 431 of the rolling bearing 43 is fixed to the heat conductor 41, the outer ring 432 of the rolling bearing 43 is fixed to the output shaft 31, the rolling bearing 43 can realize connection between the heat conductor 41 and the output shaft 31 and simultaneously enable the heat conductor 41 and the output shaft 31 to rotate relatively, the rolling bearing 43 can reduce the installation difficulty of the heat conductor 41, and the installation structure of the heat conductor 41 is simple, so that the whole detection device 4 is small and light, the weight of the detection device 4 is reduced, the influence of the detection device 4 on the grinding motor 3 is reduced, and the energy consumption of the grinding motor 3 is reduced.

As shown in fig. 2 and 3, in order to improve the heat dissipation performance of the pulverizing motor 3, in this embodiment, the heat conductor 41 is fixedly connected to the rear end of the output shaft 31, the heat dissipation fan blade 33 is installed on the heat conductor 41, the heat conductor 41 and the output shaft 31 keep rotating synchronously, the heat conductor 41 can drive the heat dissipation fan blade 33 to rotate, the air flow formed by the heat dissipation fan blade 33 can take away the heat of the pulverizing motor 3, so as to achieve the heat dissipation effect, reduce the temperature rising speed of the pulverizing motor 3, and effectively improve the effective working time of the pulverizing motor 3.

As shown in fig. 1, in order to improve the stability of the temperature sensor 42, the temperature sensor 42 in this embodiment is fixed by extending the lead wire 44 to the control circuit board, and it is understood that the temperature sensor 42 may be fixed to the control circuit board by pin welding; the control circuit board is fixed on a bottom plate 21 of the base 2, the bottom plate 21 is positioned below the crushing motor 3, an installation gap 22 for installing the control circuit board and the detection device 4 is arranged between the bottom plate 21 and the crushing motor 3, and the temperature sensor 42 is fixed relative to the control circuit board and is electrically communicated with the control circuit board through a lead 44 or a pin; it will be understood, of course, that the food processor of the present embodiment may be provided with a mounting, and that the detecting means 4 may be directly fixed to the mounting, for example, by providing the mounting on the bottom plate 21 or directly using the bottom plate 21 as the mounting.

In one embodiment, the detecting device 4 includes a temperature sensor 42, where the temperature sensor 42 includes a temperature sensing head 421, a lead 44, and a sensor housing, where the temperature sensing head 421 may rotate along with the output shaft 31 and keep electrically connected with the lead 44 or the lead, and the sensor housing is fixed relative to the control circuit board, and in this embodiment, the temperature sensing head 421 is directly contacted with the output shaft 31, so that heat conduction medium between the temperature sensing head 421 and the output shaft 31 can be reduced, thereby reducing heat consumption in the heat conduction process, making the temperature sensing effect better, and improving the sensitivity of the temperature sensor 42.

In another embodiment, the rear end face of the output shaft 31 is provided with a mounting hole, the detecting device 4 is inserted into the mounting hole and has a gap with the mounting hole, the detecting device 4 is not connected with the output shaft 31, the detecting device 4 detects the temperature of the inside of the output shaft 31 through the mounting hole, in this embodiment, the detecting device 4 is fixed relative to the control circuit board, that is, the detecting device 4 and the output shaft 31 can rotate relatively, the detecting device 4 is inserted into the mounting hole to detect the temperature, the mounting hole is positioned in the inside of the output shaft 31, the temperature of the inside of the output shaft 31 is closer to the actual temperature of the output shaft 31, and the detecting device 4 is inserted into the mounting hole, so that the detecting device 4 is positioned in the inside of the output shaft 31, the detecting precision of the detecting device 4 can be improved on the premise of not contacting the output shaft 31, the control circuit board can adjust the working state of the pulverizing motor 3 more sensitively, and the time of overheat operation of the pulverizing motor 3 is reduced.

The detecting device 4 in this embodiment includes a temperature sensor 42, and a temperature sensing head 421 of the temperature sensor 42 is inserted into the mounting hole; it will be understood that, in this embodiment, the detecting device 4 may also include a heat conductor 41 and a temperature sensor 42, where the heat conductor 41 is inserted into the mounting hole to conduct heat of the output shaft 31, and the temperature sensor 42 detects the temperature of the output shaft 31 by detecting the temperature of the heat conductor 41; the temperature in the mounting hole is closer to the actual temperature of the output shaft 31, and the temperature sensing head 421 directly detects the temperature in the mounting hole, so that the detection result is closer to the actual temperature of the output shaft 31 on the premise of not contacting the output shaft 31; or the temperature in the mounting hole is conducted through the heat conductor 41, and the temperature sensing head 421 reflects the temperature of the output shaft 31 by detecting the temperature of the heat conductor 41.

As shown in fig. 4, in another embodiment, the food processor may include a machine head 5 and a cup 1, the machine head 5 is fastened on the top of the cup 1, the grinding chamber 11 is located in the cup 1, the grinding motor 3 is installed in the machine head 5, the front end of the output shaft 31 of the grinding motor 3 extends downward and extends into the grinding chamber 11, the control circuit board 51 may be fixed on a circuit board bracket of the machine head 5, the control circuit board 51 is above the grinding motor 3, the control circuit board 51 is inverted on the lower side of the circuit board bracket, the detecting device 4 is located at the top end of the output shaft 31, and the detecting device 4 is electrically connected with the control circuit board through a lead 44 or a pin; it will be understood, of course, that the food processor of this embodiment may also be provided with a mounting, and that the detecting means 4 may also be directly fixed to the mounting, for example a circuit board holder as the mounting.

As shown in fig. 5, in another embodiment, the food processor may also include a base 2 and a cup 1, the grinding chamber 11 is located in the cup 1, the cup 1 is fixedly connected to the top of the base 2, the grinding motor 3 is installed in the base 2, the front end of an output shaft 31 of the grinding motor 3 extends upward and is directly connected with the grinding cutter 32 for transmission, the control circuit board is fixed on a bottom plate 21 of the base 2, the bottom plate 21 is located below the grinding motor 3, an installation gap 22 for installing the control circuit board and the detection device 4 is provided between the bottom plate 21 and the grinding motor 3, the detection device 4 is located at the bottom end of the output shaft 31, and the detection device 4 is electrically connected with the control circuit board through a lead 44 or a pin; it will be understood, of course, that the food processor of this embodiment may be provided with a mounting, and that the detecting means 4 may be directly fixed to the mounting, for example, the bottom plate 21 as the mounting.

As shown in fig. 6, in another embodiment, the food processor may also include a water supply assembly 6, a mounting bracket 8, a grinding cup and a pulp receiving cup 7, the grinding chamber 11 is located in the grinding cup, the water supply assembly 6 supplies water to the grinding chamber 11, the grinding chamber 11 discharges pulp to the pulp receiving cup 7, the grinding cup and the grinding motor 3 are fixed on the mounting bracket 8, the front end of an output shaft 31 of the grinding motor 3 extends upward and stretches into the grinding chamber 11, a control circuit board may also be fixed on the mounting bracket 8, the grinding motor 3 is placed in the mounting bracket 8, a containing chamber 81 is provided between the grinding motor 3 and the bottom of the mounting bracket 8, the control circuit board and the detecting device 4 are located in the containing chamber 81, the detecting device 4 is located at the bottom end of the output shaft 31, and the detecting device 4 is electrically connected with the control circuit board through a lead 44 or a pin. The mounting bracket 8 may also be used as a mounting bracket for fixing the detection device 4.

In addition to the preferred embodiments described above, other embodiments of the present utility model are also contemplated as falling within the scope of the claimed utility model, as well as all other embodiments that may be made by one of ordinary skill in the art without making any inventive effort based on the embodiments of the present utility model.

Claims (10)

1. The utility model provides a food processing machine, includes crushing chamber, crushing motor and control circuit board, smashes the intracavity and is equipped with crushing cutter, smashes the cutter by crushing motor drive, and control circuit board is connected with crushing motor electricity, its characterized in that, the rear end of the output shaft of crushing motor is equipped with the detection device who is used for detecting output shaft temperature, and detection device is connected with the control circuit board electricity.

2. The food processor of claim 1, wherein the sensing means comprises a temperature sensor and a heat conductor, the heat conductor being located at a rear end of the output shaft and conducting heat from the output shaft, the temperature sensor sensing the temperature of the output shaft by sensing the temperature of the heat conductor.

3. The food processor of claim 2, wherein the rear end surface of the heat conductor is provided with a heat conduction hole, the temperature sensor is fixed relative to the control circuit board, and the temperature sensing head of the temperature sensor is inserted into the heat conduction hole.

4. A food processor according to claim 3, wherein the heat conductor is fixedly connected to the rear end of the output shaft, and a gap is provided between the temperature sensing head of the temperature sensor and the heat conducting hole; or, the rear end of the output shaft is provided with a connecting hole, the heat conductor is inserted into the connecting hole and is provided with a gap with the connecting hole, and the heat conductor is fixedly connected with the temperature sensing head of the temperature sensor.

5. The food processor of claim 2, wherein the temperature sensor is stationary relative to the control circuit board, the temperature sensor is assembled with the heat conductor via a rolling bearing, an inner ring of the rolling bearing is fixed to the temperature sensor, and an outer ring of the rolling bearing is fixed to the heat conductor; or the temperature sensor is fixed relative to the control circuit board, the heat conductor is fixedly connected with the temperature sensing head of the temperature sensor, the heat conductor is assembled and connected with the output shaft through a rolling bearing, the inner ring of the rolling bearing is fixed on the heat conductor, and the outer ring of the rolling bearing is fixed on the output shaft; or the heat conductor is fixedly connected to the rear end of the output shaft, and the heat conductor is provided with the heat dissipation fan blade.

6. The food processor of claim 1, wherein the detection device is stationary relative to the control circuit board, the detection device is coupled to the output shaft by a rolling bearing, an inner race of the rolling bearing is secured to the detection device, and an outer race of the rolling bearing is secured to the output shaft.

7. The food processor of claim 6, wherein the detection device comprises a temperature sensor, and wherein pins of the temperature sensor are welded and fixed on the control circuit board; or the detection device comprises a temperature sensor, and a lead of the temperature sensor extends to the control circuit board for fixing; alternatively, the food processor is provided with a mounting bracket for fixing the detection device.

8. The food processor of claim 1, wherein the rear end face of the output shaft is provided with a mounting hole, and the detecting means is inserted into the mounting hole to detect the temperature of the output shaft.

9. The food processor of claim 8, wherein the detecting means comprises a temperature sensor, a temperature sensing head of the temperature sensor being inserted into the mounting hole; or, the detection device comprises a heat conductor and a temperature sensor, wherein the heat conductor is inserted into the mounting hole to conduct heat of the output shaft, and the temperature sensor detects the temperature of the output shaft by detecting the temperature of the heat conductor.

10. The food processor of claim 1, wherein the sensing means comprises a temperature sensor comprising a temperature sensing head, a lead, and a sensor housing, the temperature sensing head rotating with the output shaft and remaining in electrical communication with the lead, the sensor housing being fixed relative to the control circuit board.