CN221180242U - Heat dissipation exhaust structure of household food processing machine - Google Patents

Abstract

The utility model provides a heat dissipation and exhaust structure of a household food processor, which comprises a base, wherein a driving motor and a control circuit board are arranged in an inner cavity of the base, a circuit board installation cavity for placing the control circuit board is formed in the base, an air duct seat is arranged at the bottom of the driving motor, the air duct seat comprises an upper air duct and a lower air duct which are arranged in a vertically through manner, a bidirectional impeller which enters the air duct seat is arranged at the lower end of a motor shaft of the driving motor, and the bidirectional impeller comprises motor heat dissipation fan blades falling into the upper air duct and circuit board heat dissipation fan blades falling into the lower air duct; the lower air duct is communicated with the circuit board mounting cavity, and the lower end of the driving motor is connected with the upper air duct in a sealing way. According to the utility model, through the upper air channel and the lower air channel of the air channel seat, and the motor radiating fan blade and the circuit board radiating fan blade of the bidirectional impeller, separate heat dissipation of the driving motor and the control circuit board can be realized, and the separate and independent heat dissipation and cooling effects are good.

Description

Heat dissipation exhaust structure of household food processing machine

Technical Field

The utility model relates to the field of food processors, in particular to a heat dissipation and exhaust structure of a household food processor.

Background

The household food processor can be matched with processing cups of various specifications to realize different processing effects, such as high-speed chopping and stirring, low-speed grinding and the like of food materials.

Most of the domestic food processors on the market at present only dissipate heat of the motor, and the heat dissipation of the circuit board of the electronic components is ignored, so that the use function is limited to a certain extent.

Taking Chinese utility model with publication number of CN219940419U as an example, it discloses a food processor for improving heat dissipation effect of motor, comprising a stirring cup component, the stirring cup component comprises a cup body, a heating plate arranged at the bottom of the cup body, a cup bottom shell connected with the bottom of the cup body, a motor arranged in the cup bottom shell, the motor is provided with a stator, the bottom wall of the cup bottom shell is provided with an air inlet in a radial outer area, an air outlet in a central area, the inner side of the cup bottom shell is provided with a wind inlet baffle rib, the wind inlet baffle rib is connected with the inner side wall of the cup bottom shell to form a wind inlet channel, the lower end of the wind inlet channel is connected with the air inlet, and the upper end extends towards the stator; the motor is provided with a motor shaft, and the lower end of the motor shaft is connected with a heat dissipation fan blade. The utility model is provided with the air inlet channel, so that an air flow channel of an air inlet, an air inlet channel, the outer side of the motor stator, the motor rotor and an air outlet can be formed in the cup bottom shell, more air entering the inner cavity of the cup bottom shell can flow through the motor stator and the rotor, and heat generated by the motor is effectively taken away, thereby improving the heat dissipation effect of the motor. The utility model realizes the heat radiation of the motor by arranging the air inlet duct and the heat radiation fan blade, has no heat radiation function on electronic components such as a circuit board and the like, and has certain limitation on the use function.

Disclosure of utility model

First, the technical problem to be solved

The utility model aims to solve the problem of providing the heat dissipation and exhaust structure of the household food processor, which not only can dissipate heat of a motor, but also can synchronously and effectively dissipate heat of circuit board components and can overcome the defects in the prior art.

(II) technical scheme

In order to solve the technical problems, the utility model provides a heat dissipation and exhaust structure of a household food processor, which comprises a base, wherein a driving motor and a control circuit board are arranged in an inner cavity of the base, a circuit board installation cavity for placing the control circuit board is formed in the base, an air duct seat is arranged at the bottom of the driving motor, the air duct seat comprises an upper air duct and a lower air duct which are vertically and fixedly arranged, a bidirectional impeller entering the air duct seat is arranged at the lower end of a motor shaft of the driving motor, and the motor shaft and the bidirectional impeller are vertically arranged; the bidirectional impeller has the functions of respectively conducting air guiding and radiating on the driving motor and the control circuit board, and specifically comprises motor radiating fan blades falling into the upper air duct and circuit board radiating fan blades falling into the lower air duct, and the motor shaft is used for rotation control, namely the driving motor can start to work when working; the lower air duct is communicated with the circuit board mounting cavity and is used for conducting air guiding and radiating on the control circuit board in the circuit board mounting cavity; the lower end of the driving motor is connected to the upper air duct in a sealing way and is used for discharging heat generated by the driving motor to the outside through motor radiating fan blades in the upper air duct; through the structure of the bidirectional impeller and the air channel seat which are arranged at the lower end of the motor shaft in the technical scheme, the driving motor and the control circuit board can be effectively cooled.

In some embodiments, the base is provided with an air inlet, a circuit board heat dissipation air outlet and a motor heat dissipation air outlet, the circuit board heat dissipation air outlet is communicated with the circuit board installation cavity, and external air flows through the air inlet and enters the inner cavity of the base; the motor radiating fan blade is configured to guide external airflow to enter the driving motor and the upper air duct in sequence and then to be discharged from the motor radiating air outlet; the circuit board cooling fan blade is configured to guide external airflow to enter the lower air duct and the circuit board mounting cavity in sequence and then to be discharged from the circuit board cooling air outlet.

In some embodiments, a wind scooper is installed at the heat dissipation air outlet of the motor, and a first wind guiding opening communicated with the wind scooper is arranged on one side of the upper wind channel in a penetrating manner.

In some embodiments, a mounting cover for forming the circuit board mounting cavity is mounted in the base, the mounting cover is communicated with the circuit board heat dissipation air outlet, and a second air guide opening communicated with the mounting cover is arranged on one side of the lower air duct in a penetrating manner.

In some embodiments, the lower duct is provided with a circuit board air inlet.

In some embodiments, a motor base for fixing the driving motor is installed in the base, and a plurality of motor air inlets communicated with the upper air duct are formed in the motor base.

In some embodiments, the number of the air inlets is two, and the air inlets are symmetrically arranged at the left side and the right side of the bottom of the base respectively.

In some embodiments, the circuit board heat dissipation air outlet is disposed at a front end position of the bottom of the base, and the motor heat dissipation air outlet is disposed at a rear end position of the bottom of the base.

In some embodiments, the upper air duct and the lower air duct are arranged coaxially, and the motor heat dissipation fan blade and the circuit board heat dissipation fan blade are arranged coaxially. The motor heat dissipation fan blade and the circuit board heat dissipation fan blade are opposite in rotation direction and are separated through a partition plate.

(III) beneficial effects

Compared with the prior art, the heat dissipation and exhaust structure of the household food processor provided by the utility model has the following advantages: the upper air channel and the lower air channel of the air channel seat, and the motor radiating fan blade and the circuit board radiating fan blade of the bidirectional impeller realize separate and independent heat radiation of the driving motor and the control circuit board, so that the heat radiation and cooling effects are good; the motor radiating fan blades and the circuit board radiating fan blades are opposite in rotation direction and are separated by the partition plate, and the partition plate can also play a role in isolating the upper air channel from the lower air channel, so that cold air flows entering the upper air channel and the lower air channel cannot influence each other to cause a turbulent flow phenomenon; the mounting cover is arranged to form a circuit board mounting cavity for placing the control circuit board, the mounting cover is communicated with the lower air duct, and the heat generated at the control circuit board can be effectively discharged to the outside of the processing machine through the circuit board radiating fan blades; the air inlet, the circuit board heat dissipation air outlet and the motor heat dissipation air outlet are all arranged at the bottom of the base, so that an operator is not influenced during use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a heat dissipating and air exhausting structure of a household food processor in accordance with the present utility model;

FIG. 2 is a schematic diagram of a heat dissipation and exhaust structure of a household food processor;

FIG. 3 is a cross-sectional view of I-I in FIG. 2 of a heat dissipating and air venting structure for a home food processor in accordance with the present utility model;

FIG. 4 is a perspective view of a base of a heat dissipating and air exhausting structure of a home food processor in accordance with the present utility model;

FIG. 5 is a perspective view of a driving motor and air duct base of a heat dissipating and air exhausting structure of a household food processor in accordance with the present utility model;

FIG. 6 is a perspective view of a bottom view of a drive motor and air duct base related to a heat dissipating and air exhausting structure of a home food processor in accordance with the present utility model;

FIG. 7 is a perspective view of a motor base of a heat dissipating and air exhausting structure of a household food processor in accordance with the present utility model;

FIG. 8 is a perspective view of an air duct base of a heat dissipating and air exhausting structure of a home food processor according to the present utility model;

FIG. 9 is a cross-sectional view of an air duct base, an air guide cover and a mounting cover of a heat dissipation and exhaust structure of a household food processor;

FIG. 10 is a perspective view of a bi-directional impeller of a heat dissipating and air venting structure for a home food processor in accordance with the present utility model;

FIG. 11 is a perspective view of another view of a bi-directional impeller of a heat dissipating and air venting structure for a home food processor in accordance with the present utility model;

The corresponding component names for each reference number in the figures are: 1. a base; 2. a driving motor; 3. a control circuit board; 4. a circuit board mounting cavity; 5. an air duct seat; 6. a bidirectional impeller; 7. a mounting cover; 101. an air inlet; 102. a circuit board heat dissipation air outlet; 103. a motor heat dissipation air outlet; 104. a wind scooper; 105. a motor base; 106. an air inlet of the motor; 201. a motor shaft; 501. an upper air duct; 502. a lower air duct; 503. a first air guide port; 504. a second air guide port; 505. an air inlet of the circuit board; 601. motor cooling fan blade; 602. radiating fan blades of a circuit board; 603. a partition board.

Detailed Description

The application will now be described in detail with reference to the drawings and to specific embodiments.

Other advantages and effects of the present application will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present application with reference to specific examples. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, apparatus may be implemented and/or methods practiced using any number and aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details.

The following describes the technical scheme provided by each embodiment of the present application with reference to the accompanying drawings.

Referring to fig. 1 and 2, the present utility model provides a heat dissipation and exhaust structure of a household food processor, which is used for dissipating heat of a driving motor 2 and a control circuit board 3; the air conditioner comprises a base 1, wherein the base 1 is arranged in a hollow manner, a driving motor 2 and a control circuit board 3 are installed in an inner cavity of the base 1, an air duct seat 5 is installed at the bottom of the driving motor 2, the air duct seat 5 comprises an upper air duct 501 and a lower air duct 502 which are arranged in a vertically penetrating manner, and a bidirectional impeller 6 which enters the air duct seat 5 is installed at the lower end of a motor shaft 201 of the driving motor 2; the bidirectional impeller 6 comprises a motor heat dissipation fan blade 601 falling into the upper air channel 501 and a circuit board heat dissipation fan blade 602 falling into the lower air channel 502, and the circuit board heat dissipation fan blade 602 is matched with the lower air channel 502; a baffle 603 is arranged between the motor heat dissipation fan blade 601 and the circuit board heat dissipation fan blade 602, and the motor heat dissipation fan blade 601 and the circuit board heat dissipation fan blade are separated by the baffle 603; the partition 603 may also separate the upper air duct 501 and the lower air duct 502, so that the air flow entering the upper air duct 501 and the air flow entering the lower air duct 502 do not substantially interfere with each other and do not disturb.

Wherein, lower wind channel 502 intercommunication circuit board installation cavity 4, driving motor 2 lower extreme sealing connection is last wind channel 501. The heat generated by the operation of the driving motor 2 is guided into the upper air channel 501 by the motor heat dissipation fan blade 601 and is discharged to the outside of the food processor; similarly, the heat generated by the operation of the control circuit board 3 is guided by the circuit board heat dissipation fan 602 to be discharged to the outside of the food processor. Therefore, the application installs the bidirectional impeller 6 at the lower end of the motor shaft 201, and combines the upper air duct 501 and the lower air duct 502 of the air duct base 5, so as to realize effective heat dissipation of the driving motor 2 and the control circuit board 3, and has simple design principle, and the bidirectional impeller 6 at the lower end can be driven to rotate to work when the driving motor 2 works, thereby realizing diversion heat dissipation.

In some preferred embodiments, as shown in fig. 10 and 11, the motor heat dissipation fan 601 of the bidirectional impeller 6 and the circuit board heat dissipation fan 602 have opposite rotation directions, so that separate diversion heat dissipation can be performed on the control circuit board 3, and heat generated by the driving motor 2 cannot be blown to the control circuit board 3, so that the cooling heat dissipation effect is good.

In some embodiments, as shown in fig. 4, an air inlet 101, a circuit board heat dissipation air outlet 102 and a motor heat dissipation air outlet 103 are disposed on the base 1, and the circuit board heat dissipation air outlet 102 is communicated with the circuit board mounting cavity 4. In this embodiment, the external air flow first enters the inner cavity of the base 1 through the air inlet 101, and the air flow entering the inner cavity is then guided into the upper air channel 501 and the lower air channel 502 of the air channel seat 5. The motor heat dissipation fan blade 601 is configured to guide external airflow to sequentially enter the driving motor 2 and the upper air duct 501 and then be discharged from the motor heat dissipation air outlet 103; the circuit board heat dissipation fan 602 is configured to guide external airflow into the lower duct 502 and the circuit board mounting cavity 4 in sequence and then to be discharged from the circuit board heat dissipation air outlet 102.

It should be noted that the positions and numbers of the air inlet 101, the circuit board heat dissipation air outlet 102, and the motor heat dissipation air outlet 103 are not particularly limited, and may be all disposed at the bottom position of the base 1, or may be partially disposed at the bottom position, or partially disposed at the side end position of the base.

In one example, as shown in fig. 4, the air inlet 101, the circuit board heat dissipation air outlet 102 and the motor heat dissipation air outlet 103 are all disposed at the bottom of the base 1, and the number of the air inlets 101 is two, which are symmetrically disposed at the left and right sides of the bottom of the base 1.

The circuit board heat dissipation air outlet 102 is disposed at a position near the front end of the bottom of the base 1, and the motor heat dissipation air outlet 103 is disposed at a position near the rear end of the bottom of the base 1.

In some embodiments, referring to fig. 5, 6, 8 and 9, the motor heat dissipation air outlet 103 is provided with the air guide cover 104, a first air guide opening 503 communicated with the air guide cover 104 is arranged on one side of the upper air duct 501, and heat generated by the driving motor 2 is led into the upper air duct 501 and then is discharged to the outside of the food processor through the upper air duct 501 and the motor heat dissipation air outlet 103.

In some embodiments, referring to fig. 5, 6, 8 and 9, a mounting cover 7 for forming a circuit board mounting cavity 4 is mounted in the base 1, the mounting cover 7 is communicated with the circuit board heat dissipation air outlet 102, and a second air guide opening 504 communicated with the mounting cover 7 is arranged on one side of the lower air duct 502. The external cold air flow entering the lower air duct 502 is sent to the circuit board installation cavity 4 in the installation cover 7 through the circuit board heat dissipation fan blade 602, and the control circuit board 3 is cooled and then discharged to the outside of the food processor through the circuit board heat dissipation air outlet 102.

In some embodiments, the lower duct 502 is provided with a circuit board air intake 505 therethrough.

It should be noted that, the circuit board air inlet 505 may be disposed at a side end of the lower air duct 502, or may be disposed at a bottom of the lower air duct 502, so as to ensure that external air flows can enter the lower air duct 502.

In one example, as shown in fig. 3, 6, 8 and 9, the circuit board air inlet 505 is disposed at a bottom position of the lower duct 502. As shown in fig. 3, the circuit board air inlet 505 is spaced from the bottom of the inner cavity of the base 1, and the external air entering the inner cavity of the base 1 flows through the circuit board air inlet 505 and enters the lower air duct 502.

In some embodiments, a motor base 105 for fixing the driving motor 2 is installed in the base 1, and a plurality of motor air inlets 106 communicating with the upper air duct 501 are arranged on the motor base 105. The external cold air flow entering the base 1 dissipates heat of the driving motor 2 through the motor air inlet 106, and the heat is guided into the upper air duct 501 and the air guide cover 104, and finally is discharged from the motor heat dissipation air outlet 103.

In some preferred embodiments, the upper air duct 501 and the lower air duct 502 are arranged coaxially, and the motor heat dissipation fan 601 and the circuit board heat dissipation fan 602 are arranged coaxially.

Heat radiation working principle: as shown in fig. 2-4, when the driving motor 2 works, it drives the bidirectional impeller 6 to rotate, and guides the external cold air flow to enter the inner cavity of the base 1 through the air inlet 101.

Part of cold air flow enters the driving motor 2 through the motor air inlet 106 of the motor base 105 to be subjected to transduction and heat dissipation, then the hot air flow formed at the driving motor 2 is guided into the upper air channel 501 of the air channel base 5 through the motor heat dissipation fan blade 601 of the bidirectional impeller 6, and then is discharged to the outside of the food processor through the first air guide opening 503, the air guide cover 104 and the motor heat dissipation air outlet 103.

The other part of cold air flow is guided by the circuit board cooling fan blades 602 of the bidirectional impeller 6, enters the lower air duct 502 of the air duct seat 5 through the circuit board air inlet 505, enters the mounting cover 7 through the second air guide opening 504 to form the circuit board mounting cavity 4, cools the control circuit board 3, and finally discharges the generated hot air to the outside of the food processor through the circuit board cooling air outlet 102.

It should be noted that, according to the utility model, through the upper air duct 501 and the lower air duct 502, the motor heat dissipation fan blade 601 and the circuit board heat dissipation fan blade 602, independent heat dissipation of the driving motor 2 and the control circuit board 3 is realized, the two are mutually noninterfered and are not affected, that is, external cold air flow can enter the upper air duct 501 and the lower air duct 502 separately, independent heat dissipation of the driving motor 2 and the control circuit board 3 which are respectively corresponding to each other is carried out, the whole structure principle is simple and reliable, the heat dissipation and cooling effect is good, and the service lives of the two can be effectively prolonged.

The same and similar parts of the embodiments in this specification are all referred to each other, and each embodiment focuses on the differences from the other embodiments.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a domestic food processor heat dissipation exhaust structure, includes base (1), driving motor (2) and control circuit board (3) are installed to the intracavity of base (1), its characterized in that: the base (1) is internally provided with a circuit board mounting cavity (4) for placing the control circuit board (3), the bottom of the driving motor (2) is provided with an air duct seat (5), the air duct seat (5) comprises an upper air duct (501) and a lower air duct (502) which are arranged in a vertically penetrating manner, the lower end of a motor shaft (201) of the driving motor (2) is provided with a bidirectional impeller (6) which enters the air duct seat (5), and the bidirectional impeller (6) comprises a motor heat dissipation fan blade (601) which falls into the upper air duct (501) and a circuit board heat dissipation fan blade (602) which falls into the lower air duct (502); the lower air duct (502) is communicated with the circuit board mounting cavity (4); the lower end of the driving motor (2) is connected to the upper air duct (501) in a sealing mode.

2. The heat sink and exhaust structure of a home food processor of claim 1, wherein: an air inlet (101), a circuit board heat dissipation air outlet (102) and a motor heat dissipation air outlet (103) are formed in the base (1), the circuit board heat dissipation air outlet (102) is communicated with the circuit board mounting cavity (4), and external air flows through the air inlet (101) and enters the inner cavity of the base (1); the motor radiating fan blade (601) is configured to guide external airflow to sequentially enter the driving motor (2) and the upper air duct (501) and then to be discharged from the motor radiating air outlet (103); the circuit board cooling fan blade (602) is configured to guide external airflow to sequentially enter the lower air duct (502) and the circuit board mounting cavity (4) and then to be discharged from the circuit board cooling air outlet (102).

3. The heat sink and exhaust structure of a household food processor as claimed in claim 2, wherein: the motor cooling air outlet (103) is provided with an air guide cover (104), and one side of the upper air duct (501) is communicated with a first air guide opening (503) communicated with the air guide cover (104).

4. The heat sink and exhaust structure of a household food processor as claimed in claim 2, wherein: install in base (1) and be used for forming installation cover (7) of circuit board installation cavity (4), installation cover (7) intercommunication circuit board heat dissipation air outlet (102), lower wind channel (502) one side link up be provided with second air guide opening (504) that installation cover (7) switched on.

5. The heat sink and exhaust structure of a home food processor of claim 1, wherein: the lower air duct (502) is provided with a circuit board air inlet (505) in a penetrating mode.

6. The heat sink and exhaust structure of a home food processor of claim 1, wherein: install in base (1) be used for fixing motor cabinet (105) of driving motor (2), be provided with a plurality of intercommunication on motor cabinet (105) motor air intake (106) of last wind channel (501).

7. The heat sink and exhaust structure of a household food processor as claimed in claim 2, wherein: the number of the air inlets (101) is two, and the two air inlets are symmetrically arranged on the left side and the right side of the bottom of the base (1) respectively.

8. The heat sink and exhaust structure of a household food processor as claimed in claim 2, wherein: the circuit board heat dissipation air outlet (102) is arranged at the position close to the front end of the bottom of the base (1), and the motor heat dissipation air outlet (103) is arranged at the position close to the rear end of the bottom of the base (1).

9. The heat sink and exhaust structure of a home food processor of claim 1, wherein: the upper air duct (501) and the lower air duct (502) are coaxially arranged, and the motor radiating fan blade (601) and the circuit board radiating fan blade (602) are coaxially arranged.

10. The heat sink and exhaust structure for a home food processor of claim 9, wherein: the motor radiating fan blades (601) and the circuit board radiating fan blades (602) are opposite in rotation direction and are separated through a separation plate (603).