CN208822540U - Host computer subassembly and cooking machine - Google Patents
Host computer subassembly and cooking machine Download PDFInfo
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- CN208822540U CN208822540U CN201820087258.3U CN201820087258U CN208822540U CN 208822540 U CN208822540 U CN 208822540U CN 201820087258 U CN201820087258 U CN 201820087258U CN 208822540 U CN208822540 U CN 208822540U
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- 238000010411 cooking Methods 0.000 title claims abstract description 27
- 230000000930 thermomechanical effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 18
- 230000033228 biological regulation Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The application provides a host computer subassembly and cooking machine. The host machine component comprises a shell, a control module, a motor component and a heat dissipation device, wherein the motor component and the heat dissipation device are electrically connected with the control module, and the shell is provided with at least one air inlet and at least one air outlet. The motor assembly and the heat dissipation device are independently arranged in the shell, and the control module is used for controlling the heat dissipation device to operate. The heat dissipation device drives air to flow towards the motor assembly, and the air flowing through the motor assembly exchanges heat with the motor assembly and is discharged from the air outlet. Set up the heat abstractor of independent operation in the host computer subassembly of cooking machine, this heat abstractor's operation is passed through control module control, can adjust heat dissipation power in real time according to motor element's operation conditions, improves motor element's radiating efficiency. The control module can drive the heat dissipation device to operate according to different operation periods of the host computer assembly, and can effectively control the temperature rise condition of the host computer assembly, so that the food processor conforms to safety regulations.
Description
Technical field
This application involves arrangement device technical field, it is related to a kind of host component and cooking machine.
Background technique
Cooking machine includes cup body component and host component, and host component drives cup body assembly operating to process in cup body component
Food materials.Host component includes motor and the radiator fan that is installed on motor, in the cooking machine course of work, the output of motor
Axis drives radiator fan rotation, so that radiator fan drives air to flow to the coiling group direction of motor to radiate.
When motor just starts, the temperature rise of motor is fast, while the speed air flow of radiator fan driving is low, easily leads to electricity
Machine does not meet the case where safety requirement.In addition, when the food materials in the food materials or cup body component that blade crushes hard are more, electricity
The resistance that machine driving blade rotation is subject to is big, and revolving speed reduces, and electric current increases.Radiator fan is driven by output shaft rotation, electricity
Machine revolving speed reduces the speed air flow decline that then will lead to radiator fan driving, so that motor radiating is insufficient, even results in electricity
Machine burning is ruined, and the service life of cooking machine reduces, poor user experience.
Utility model content
In view of this, the application provides a kind of host component and cooking machine.
Specifically, the application is achieved by the following technical solution:
It is provided by the present application in a first aspect, disclose a kind of host component, including shell, control module, with the control
The electric machine assembly and radiator of module electrical connection, the shell are equipped at least an air inlet and air outlet, the electric machine assembly
Independently installed in the shell with radiator, the control module is for controlling the radiator operation, the heat dissipation
Device drive air to electric machine assembly direction flow, flow through the electric machine assembly air and the electric machine assembly heat exchange and from
Air outlet discharge.
Optionally, the control module is used to detect the current value and/or operating temperature of the electric machine assembly, when the electricity
When the current value and/or operating temperature of thermomechanical components are more than threshold value, the control module controls the radiator operation, to reduce
The temperature rise of the electric machine assembly.
Optionally, when the host component starts, the control module controls the radiator and runs preset duration.
Optionally, the shell includes base assembly and the shell for being fixed on base assembly, and the base assembly includes being in
The ventilating duct of tubulose, the electric machine assembly is at least partially disposed in the ventilating duct and the electric machine assembly is fixed to the ventilation
The first end in road, the air outlet are connected to the first end of the ventilating duct, and the radiator is located at the of the ventilating duct
Two ends are simultaneously connected to an at least air inlet.
Optionally, the air outlet is set to the shell, and the first end of the ventilating duct is equipped with outlet air notch, the outlet air
Notch is connected to the air outlet, and an at least air inlet is set to the base assembly.
Optionally, the radiator includes radiator fan, and the radiator fan is installed on the bottom of the shell.
Optionally, the radiator further includes being installed on the intracorporal wind scooper of the shell, and the wind scooper has from one
The annular inner wall gradually tapered up to the other end is held, the annular inner wall is for converging and drawing the air that the radiator fan drives
Air is led to flow to electric machine assembly direction.
Optionally, the electric machine assembly includes motor body and the output shaft set on the motor body, the motor master
Body is located at the output shaft in the shell and runs through the shell and extend outwardly, and the radiator drives air to the electricity
The flowing of machine main direction.
Optionally, the electric machine assembly further includes the electric motor fan for being installed on the output shaft, and the electric motor fan is with institute
Output shaft is stated to rotate and air is driven to flow to the motor body direction.
Second aspect provided by the present application discloses a kind of cooking machine, including cup body component and host groups as described above
Part, the host component are connect with the cup body Component driver.
Technical solution provided by the embodiments of the present application can include the following benefits:
Independently operated radiator is set in the host component of cooking machine, and the operation of the radiator passes through control mould
Block control, can adjust in real time heat radiation power according to the operation conditions of electric machine assembly, improve the radiating efficiency of electric machine assembly.Heat dissipation dress
It sets without being driven by electric machine assembly, can avoid the noise that electric machine assembly is generated because driving fan radiates, the operation of cooking machine
Noise is small, and user experience is good.Control module can drive radiator operation according to the different run the periods of host component, can be effective
The temperature rise situation for controlling host component, makes cooking machine meet safety.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the cooking machine shown in one exemplary embodiment of the application.
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A.
Fig. 3 is the configuration schematic diagram of the host component shown in one exemplary embodiment of the application.
Fig. 4 is the broken section structural representation of the cooking machine without electric motor fan shown in one exemplary embodiment of the application
Figure.
Fig. 5 is the configuration schematic diagram of the host component without electric motor fan shown in one exemplary embodiment of the application.
Fig. 6 is the broken section structural representation of the cooking machine of the translator fan shown in one exemplary embodiment of the application
Figure.
Fig. 7 is the configuration schematic diagram of the host component of the translator fan shown in one exemplary embodiment of the application.
In figure, shell 10；Air inlet 11；Air outlet 12；Base assembly 13；Ventilating duct 131；Outlet air notch 132；Chassis
133；Shell 14；Guide duct 15；Wind scooper 16；Annular inner wall 161；Electric machine assembly 20；Motor body 21；Output shaft 22；Motor
Fan 23；End plate 24；Radiator 30；Radiator fan 31；Control module 40；Cup body component 100；Host component 200.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application.
It is also intended in the application and the "an" of singular used in the attached claims, " described " and "the" including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
As shown in Figure 1 to Figure 3, cooking machine includes cup body component 100 and host component 200, host component 200 and cup body group
Part 100 is drivingly connected, and host component 200 includes shell 10, control module 40, the electric machine assembly 20 being electrically connected with control module 40
With radiator 30.Shell 10 is equipped at least an air inlet 11 and air outlet 12, wherein air outlet 12 is located at electric machine assembly 20
Heat dissipation direction, so that the hot-air for completing heat exchange with electric machine assembly 20 is discharged.At least an air inlet 11 is located at radiator 30
Air inlet direction extraneous cold air is mended in time so that radiator 30 drives air to after the flowing of 30 direction of radiator
It fills.
Electric machine assembly 20 and radiator 30 are independently installed in shell 10, wherein control module 40 is for controlling heat dissipation
Device 30 is run, so that radiator 30 drives the air at air inlet 11 to flow to 20 direction of electric machine assembly, flows through heat dissipation dress
It sets the air and 20 heat exchange of electric machine assembly at 30 and is discharged from air outlet 12.Control module 40 is according to plug-in and/or outside
30 independent operating of input control radiator of portion's instruction.
In one embodiment, control module 40 is used to detect the current value and/or operating temperature of electric machine assembly 20, works as motor
When the current value and/or operating temperature of component 20 are more than threshold value, control module 40 controls radiator 30 and runs, to reduce motor
The temperature rise of component 20.In 20 course of work of electric machine assembly, current value can be according to the output power and load value of electric machine assembly 20
Corresponding change.
Such as, when cooking machine is when the food materials of processing are more or the quality of food materials is harder, then the revolving speed of electric machine assembly 20 reduces,
To improve the cutting force and torsional forces of blade.Correspondingly, the current value of electric machine assembly 20 increases, in 20 course of work of electric machine assembly
The heat of heat dissipation increases, and temperature rise is fast.Control module 40 is run according to the current value control radiator 30 detected, to improve electricity
The radiating efficiency of thermomechanical components 20 reduces it because temperature rise is too fast caused by electric current increases.
An at least temperature threshold and/or an at least current threshold are equipped in control module 40, when control module 40 detects
To electric machine assembly 20 current value and/or operating temperature be more than threshold value when, then control radiator 30 operation, the control module 40
It may include the operational efficiency or radiating efficiency for improving radiator 30.For example, radiator 30 includes radiator fan 31, mould is controlled
Block 40 can control radiator fan 31 to run or improve velocity of rotation, to improve radiating efficiency.It is restored to normally in electric machine assembly 20
Current value and/or when operating temperature, control module 40 can control radiator 30 out of service or reduce running speed, with drop
Low energy consumption.
In one embodiment, when host component 200 starts, when the control operation of radiator 30 of control module 40 is default
It is long.When host component 200 starts, the blade in cup body component 100 is driven to process food materials, by static out of service at the uniform velocity shape
State has an accelerator, and in this process, the calorific value of electric machine assembly 20 is big, and temperature rise is fast.Control module 40 is in motor group
20 startup control radiator 30 of part runs the temperature rise speed that electric machine assembly 20 is reduced to distribute the heat of electric machine assembly 20 in time
Degree can make electric machine assembly 20 meet safety requirement, extend the service life of electric machine assembly 20, improve the overall quality of cooking machine.
Independently operated radiator 30 is set in the host component 200 of cooking machine, and the operation of the radiator 30 is logical
The control of control module 40 is crossed, heat radiation power can be adjusted in real time according to the operation conditions of electric machine assembly 20, improves electric machine assembly 20
Radiating efficiency.Radiator 30 is not necessarily to drive by electric machine assembly 20, can avoid electric machine assembly 20 and produces because driving fan radiates
The operation noise of raw noise, cooking machine is small, and user experience is good.Control module 40 can be run according to the difference of host component 200
Period drives radiator 30 to run, and the temperature rise situation of host component 200 can be effectively controlled, cooking machine is made to meet safety.
Shell 10 includes base assembly 13 and the shell 14 for being fixed on base assembly 13, and shell 14 is covered in barrel-like structure
Outside base assembly 13, the opening of 13 closure 14 of base assembly, so that shell 10 constitutes a closed space, electric machine assembly 20
Output shaft 22 through shell 14 and with the cutter shaft of cup body component 100 be drivingly connected.
In one embodiment, base assembly 13 includes chassis 133 and the ventilating duct 131 in a tubular form for being fixed on chassis 133,
Chassis 133 is fixedly connected with shell 14 and the bottom of closure 14.Ventilating duct 131 includes first end and second end, wherein the
Two ends are fixed on chassis 133 and are connected to an at least air inlet 11.Correspondingly, air inlet 11 is set on base assembly 13, is such as set
In on chassis 133, chassis 133 is equipped with the air intake passage of connection air inlet 11 and radiator 30.
Electric machine assembly 20 is at least partially disposed in ventilating duct 131 and electric machine assembly 20 is fixed to the first end of ventilating duct 131,
Wherein, the heating position of electric machine assembly 20 is located in ventilating duct 131, such as winding heating position, in ventilating duct 131, air exists
In the process of circulation of ventilating duct 131 with the heating position heat exchange.Radiator 30 be located at the second end of ventilating duct 131 and with extremely
A few air inlet 11 connection, radiator 30 drive air to flow along ventilating duct 131.
Air outlet 12 is connected to the first end of ventilating duct 131.In one embodiment, air outlet 12 is set to shell 14 and close
The first end of the first end of ventilating duct 131, ventilating duct 131 is equipped with outlet air notch 132, and outlet air notch 132 is connected to air outlet 12.
Air circulates along ventilating duct 131 and goes out to flow out from outlet air notch 132 with after the completion heat exchange of electric machine assembly 20, and hot-air is located at outer
In space between shell 14 and ventilating duct 131.Wherein, air outlet 12 is located at the position on shell 14 with 132 face of outlet air notch,
Hot-air can be made to be discharged from air outlet 12.
It is discharged for guidance hot-air from air outlet 12, in one embodiment, base assembly 13 further includes wind-guiding in a tubular form
Pipe 15, the guide duct 15 are fixed on ventilating duct 131 or shell 14.The both ends of guide duct 15 be respectively communicated with outlet air notch 132 with
Air outlet 12, hot-air can enter guide duct 15 along outlet air notch 132, and be discharged along guide duct 15 from air outlet 12.
Cooking machine is placed in plane, and host component 200 and cup body component 100 are distributed along gravity direction, electric machine assembly 20
Cup body component 100 is connected to along interting from bottom to top.In one embodiment, electric machine assembly 20 includes motor body 21 and is set to electric
The output shaft 22 of owner's body 21, wherein motor body 21 is located in ventilating duct 131.In one embodiment, electric machine assembly 20 also wraps
End plate 24 is included, which is fixed to ventilating duct 131 or shell 14 pushes against the first end in 24 enclosed ventilation road 131 of end plate, with
Air is discharged from outlet air notch 132.Motor body 21 is located at output shaft 22 in shell 10 and runs through shell 10 and extend outwardly,
Radiator 30 drives air to flow to 21 direction of motor body, to reduce the temperature of motor body 21, stablizes electric machine assembly 20
Operating temperature.
Electric machine assembly 20 includes carrying electric motor fan 23 and without 23 two kinds of forms of electric motor fan.
As shown in Figure 4 and Figure 5, when electric machine assembly 20 does not have electric motor fan 23, the heat dissipation of electric machine assembly 20 is by dissipating
Thermal 30 is controlled and is adjusted the operating temperature of electric machine assembly 20.The air that radiator fan 31 drives is the type motor group
The main heat sink source of part 20.Therefore, control module 40 detects the operating temperature and/or current value of electric machine assembly 20, with control
The radiating efficiency of electric machine assembly 20 can be adjusted flexibly in the operational mode of radiator fan 31.Also, radiator fan 31 and motor group
Part 20 is independently arranged, and avoids output shaft 22 that electric motor fan 23 is driven to radiate caused noise, and muting function is good.For example, exporting
Electric motor fan 23 is installed, in the related art, broken wall cooking machine revolving speed is all in 20000RPM (revolutions per on axis 22
Minute, rev/min) more than.It drives electric motor fan 23 to rotate when electric machine assembly 20 rotates, is also easy to produce noise.Radiator fan 31
When being separately provided, revolving speed reduces 3000-5000RPM, noise caused by reducing fan running in the process.
As shown in Figure 6 and Figure 7, when electric machine assembly 20 has electric motor fan 23, the heat dissipation of electric machine assembly 20 passes through heat dissipation
Device 30 and radiator fan 31 are combined to be controlled and be adjusted the operating temperature of electric machine assembly 20.
In one embodiment, electric machine assembly 20 further includes the electric motor fan 23 for being installed on output shaft 22, electric motor fan 23 with
The rotation of output shaft 22 is simultaneously flowed to 21 direction of motor body driving air.
Electric motor fan 23 is set on the output shaft 22 of electric machine assembly 20, when electric machine assembly 20 operates normally, motor wind
23 driving air of fan is flowed to 21 direction of motor body to carry out heat dissipation operation, and radiator fan 31 can assist operation to drive sky
Gas is flowed to 23 direction of electric motor fan or radiator fan 31 is out of service.When electric machine assembly 20 is in starting state or control
When molding block 40 detects that the current value of electric machine assembly 20 or operating temperature are more than threshold value, control module 40 controls radiator fan 31
Operation, to accelerate the air passage rates to 20 direction of electric machine assembly, the operating temperature of temperature electric machine assembly 20.Correspondingly, it dissipates
When Hot-air fan 31 radiates to electric machine assembly 20 for stand-by motor fan 23, side wall or the position of ventilating duct 131 can be set to
In the axis direction of output shaft 22.Radiator fan 31 can accelerate the speed and the scale of construction of the driving air of electric motor fan 23.Radiator fan
31 can start or change according to the actual situation operation power, to keep the operation stability of electric machine assembly 20, the energy consumption of cooking machine
Small, overall stability is good.
In one embodiment, radiator 30 include radiator fan 31, radiator fan 31 be installed on the bottom of shell 10 and
In ventilating duct 131.An at least air inlet 11 is set to base assembly 13 and guides at air to radiator fan 31.For example,
Air intake passage is set on chassis 133, which is connected to radiator fan 31, so that outside 31 drive shell 10 of radiator fan
Air is flowed to 131 direction of ventilating duct.Optionally, radiator 30 is located at the axis direction of output shaft 22, and radiator fan 31 drives
Dynamic air is flowed to 20 direction of electric machine assembly, to stablize the operating temperature of electric machine assembly 20, controls the temperature rise feelings of electric machine assembly 20
Condition.Optionally, when radiator fan 31 and electric motor fan 23 are in same axis, the spacing of the two can be set as 5~10mm, such as
5mm, 6mm, 8mm, 10mm etc..
As shown in Figures 2 and 3, further, the flowing of the air at electric machine assembly 20 is delivered to improve radiator fan 31
Speed and the scale of construction.In one embodiment, radiator 30 further includes the wind scooper 16 being installed in shell 10, and wind scooper 16 has
The annular inner wall 161 gradually tapered up from one end to the other end, the air which is used to drive radiator fan 31 converge
Gather and air is guided to flow to 20 direction of electric machine assembly.Wherein, radiator fan 31 is located at the bigbore one end of annular inner wall 161,
Electric machine assembly 20 is located at the small-bore one end of annular inner wall 161.Optionally, wind scooper 16 extends in ventilating duct 131, radiation air
Fan 31 is located in wind scooper 16；Or radiator fan 31 and wind scooper 16 are respectively positioned in ventilating duct 131.Wind scooper 16 can be changed to electricity
The flowing velocity of the air of 20 direction of thermomechanical components flowing, so that the flowing velocity of air is fast, impact force is big, has preferably heat dissipation
Effect.
The above is only the preferred embodiments of the application, not to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (10)
1. a kind of host component, which is applied to cooking machine, which is characterized in that the host component includes shell
(10), control module (40), the electric machine assembly (20) and radiator (30) that are electrically connected with the control module (40), the shell
Body (10) is equipped with an at least air inlet (11) and air outlet (12), and the electric machine assembly (20) and radiator (30) are independently installed
In the shell (10), the control module (40) is for controlling the radiator (30) operation, the radiator
(30) driving air is flowed to electric machine assembly (20) direction, flows through the air and the electric machine assembly of the electric machine assembly (20)
(20) heat exchange and from air outlet (12) be discharged.
2. host component according to claim 1, which is characterized in that the control module (40) is for detecting the motor
The current value and/or operating temperature of component (20), when the current value and/or operating temperature of the electric machine assembly (20) are more than threshold value
When, the control module (40) controls radiator (30) operation, to reduce the temperature rise of the electric machine assembly (20).
3. host component according to claim 1, which is characterized in that when the host component (200) starting, the control
Molding block (40) controls the radiator (30) and runs preset duration.
4. host component according to claim 1, which is characterized in that the shell (10) includes base assembly (13) and consolidates
It is connected in the shell (14) of base assembly (13), the base assembly (13) includes ventilating duct (131) in a tubular form, the motor group
Part (20) is at least partially disposed in the ventilating duct (131) and the electric machine assembly (20) is fixed to the ventilating duct (131)
First end, the air outlet (12) are connected to the first end of the ventilating duct (131), and the radiator (30) is located at described logical
The second end in air duct (131) is simultaneously connected to an at least air inlet (11).
5. host component according to claim 4, which is characterized in that the air outlet (12) is set to the shell (14),
The first end of the ventilating duct (131) is equipped with outlet air notch (132), and the outlet air notch (132) and the air outlet (12) are even
Logical, an at least air inlet (11) is set to the base assembly (13).
6. host component according to claim 1, which is characterized in that the radiator (30) includes radiator fan
(31), the radiator fan (31) is installed on the bottom of the shell (10).
7. host component according to claim 6, which is characterized in that the radiator (30) further include be installed on it is described
Wind scooper (16) in shell (10), the wind scooper (16) have the annular inner wall gradually tapered up from one end to the other end
(161), the annular inner wall (161) by the air that the radiator fan (31) drive for converging and guiding air to motor group
The flowing of part (20) direction.
8. host component according to claim 1, which is characterized in that the electric machine assembly (20) includes motor body (21)
With the output shaft (22) for being set to the motor body (21), the motor body (21) is located at the output in the shell (10)
Axis (22) is through the shell (10) and extends outwardly, and the radiator (30) drives air to the motor body (21) side
To flowing.
9. host component according to claim 8, which is characterized in that the electric machine assembly (20) further include be installed on it is described
The electric motor fan (23) of output shaft (22), the electric motor fan (23) rotate with the output shaft (22) and drive air to described
The flowing of motor body (21) direction.
10. a kind of cooking machine, which is characterized in that including cup body component (100) and master as described in any one of claim 1 to 9
Thermomechanical components (200), the host component (200) and the cup body component (100) are drivingly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820087258.3U CN208822540U (en) | 2018-01-18 | 2018-01-18 | Host computer subassembly and cooking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820087258.3U CN208822540U (en) | 2018-01-18 | 2018-01-18 | Host computer subassembly and cooking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208822540U true CN208822540U (en) | 2019-05-07 |
Family
ID=66303438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820087258.3U Active CN208822540U (en) | 2018-01-18 | 2018-01-18 | Host computer subassembly and cooking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208822540U (en) |
-
2018
- 2018-01-18 CN CN201820087258.3U patent/CN208822540U/en active Active
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