CN118061862A - Battery pack heating system of pure electric vehicle - Google Patents
Battery pack heating system of pure electric vehicle Download PDFInfo
- Publication number
- CN118061862A CN118061862A CN202410354743.2A CN202410354743A CN118061862A CN 118061862 A CN118061862 A CN 118061862A CN 202410354743 A CN202410354743 A CN 202410354743A CN 118061862 A CN118061862 A CN 118061862A
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- Prior art keywords
- outlet pipe
- water outlet
- battery pack
- communicated
- pipe
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 194
- 238000004891 communication Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 7
- 239000000110 cooling liquid Substances 0.000 description 22
- 230000017525 heat dissipation Effects 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery pack heating system of a pure electric vehicle, which comprises: the device comprises a frame, a battery pack, a driving motor and a radiator, wherein the driving motor comprises a first water outlet pipe and a first water inlet pipe, and the radiator is provided with a second water outlet pipe; the connecting assembly comprises a three-way reversing valve, a third water outlet pipe, a second water inlet pipe and a connecting pipeline, wherein the three-way reversing valve is respectively communicated with the second water outlet pipe, the first end of the second water inlet pipe and the first end of the connecting pipeline, the second end of the second water inlet pipe is communicated with the inlet end of the heating cavity, the first end of the third water outlet pipe is communicated with the outlet end of the heating cavity, the second end of the third water outlet pipe is communicated with the connecting pipeline, and the second end of the connecting pipeline is communicated with the first water inlet pipe. The invention realizes the cooling of the driving motor and the heating of the battery pack, effectively utilizes the heat generated by the driving motor during the working, avoids the problem of endurance attenuation caused by the independent heating of the battery pack during winter, and improves the endurance capacity of the pure electric vehicle.
Description
Technical Field
The invention relates to the technical field of automobile heating, in particular to a battery pack heating system of a pure electric automobile.
Background
At present, an electric air conditioner compressor is adopted for cooling the passenger space of the pure electric automobile, a PTC electric heating system is adopted for heating, an external radiator and an electronic water pump are required to emit heat when a driving motor is in normal operation, and an expansion kettle is required to be connected to ensure that the driving motor works in an optimal temperature range when necessary. The conventional pure electric vehicle connects the all-in-one driving motor controller with the driving motor, the radiator and the electronic water pump in series through the water pipe, and when the water temperature is too high, the electronic water pump starts to work to bring out high-temperature liquid of the driving motor controller and the driving motor to circularly dissipate heat through the radiator.
However, when the ambient temperature is lower in winter, the battery pack needs to be continuously heated so as to keep the battery pack at a normal working temperature, and the energy generated by the high-speed operation of the driving motor is higher, so that the electric water pump enters the radiator to dissipate heat, the endurance of the pure electric automobile is reduced, the service life of the electric automobile is prolonged, and the use cost is increased.
Therefore, how to provide a heating system for a battery pack of a pure electric vehicle is a technical problem to be solved in the art.
Disclosure of Invention
The invention aims to provide a new technical scheme of a battery pack heating system of a pure electric vehicle.
According to a first aspect of the present invention, there is provided a battery pack heating system for a pure electric vehicle, comprising: a frame;
the battery pack comprises a battery pack and a shell, wherein the shell is internally provided with a mounting cavity and a heating cavity which are separated;
The heating assembly comprises a driving motor and a radiator, wherein the driving motor and the radiator are both arranged on the frame, the driving motor comprises a first water outlet pipe and a first water inlet pipe, and the first water outlet pipe is communicated with a water inlet of the radiator; the radiator is provided with a second water outlet pipe;
The connecting assembly comprises a three-way reversing valve, a third water outlet pipe, a second water inlet pipe and a connecting pipeline, wherein the three-way reversing valve is respectively communicated with the second water outlet pipe, the first end of the second water inlet pipe is communicated with the first end of the connecting pipeline, the second end of the second water inlet pipe is communicated with the inlet end of the heating cavity, the first end of the third water outlet pipe is communicated with the outlet end of the heating cavity, the second end of the third water outlet pipe is communicated with the connecting pipeline, and the second end of the connecting pipeline is communicated with the first water inlet pipe.
Optionally, the three-way reversing valve closes the second water outlet pipe to be communicated with the connecting pipeline, so that the first water outlet pipe, the second water inlet pipe, the third water outlet pipe, the connecting pipeline and the first water inlet pipe form a circulating channel; or the three-way reversing valve closes the second water outlet pipe to be communicated with the second water inlet pipe, so that the first water outlet pipe, the second water outlet pipe, the connecting pipeline and the first water inlet pipe form a circulating channel.
Optionally, the three-way reversing valve is provided with a sealing ring at the connection position with the second water outlet pipe, the first end of the second water inlet pipe and the first end of the connecting pipeline respectively.
Optionally, a one-way valve is arranged on the third water outlet pipe and is used for avoiding backflow of the third water outlet pipe.
Optionally, the heating assembly further comprises an electronic water pump, and the electronic water pump is connected with the connecting pipeline.
Optionally, the battery pack heating system for the pure electric vehicle further comprises a heat dissipation assembly, wherein the heat dissipation assembly comprises an expansion kettle, and the expansion kettle is communicated with the connecting pipeline and used for discharging heat in the radiator and the driving motor.
Optionally, the heat dissipation assembly further comprises a heat dissipation tube, a first end of the heat dissipation tube is communicated with a second end of the connecting pipeline, and a second end of the heat dissipation tube is communicated with the expansion kettle.
The invention has the beneficial effects that:
According to the invention, the first water outlet pipe of the driving motor is communicated with the water inlet of the radiator, so that the three-way reversing valve is respectively communicated with the second water outlet pipe, the first end of the second water inlet pipe and the first end of the connecting pipeline, the second end of the second water inlet pipe is communicated with the inlet end of the heating cavity, the first end of the third water outlet pipe is communicated with the outlet end of the heating cavity, the second end of the third water outlet pipe is communicated with the connecting pipeline, and the second end of the connecting pipeline is communicated with the first water inlet pipe. When the battery pack needs to be heated, the three-way reversing valve enables the second water outlet pipe of the radiator to be communicated with the second water inlet pipe, the second water outlet pipe and the connecting pipeline are in a closed state, then cooling liquid flows from the driving motor to the radiator, the cooling liquid enters the heating cavity through the second water outlet pipe and the second water inlet pipe to heat the battery pack, then the cooling liquid flows into the driving motor circularly from the third water outlet pipe and the connecting pipeline, further cooling of the driving motor and heating of the battery pack are achieved, heat generated when the driving motor is effectively utilized is generated, the problem that the battery pack needs to be independently heated to cause endurance attenuation in winter is avoided, the endurance of a pure electric automobile is improved, the service life of the electric automobile is prolonged, and the use cost is reduced.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a block diagram of a battery pack heating system for a pure electric vehicle according to the present invention;
Fig. 2 is a structural diagram of another angle of the battery pack heating system for a pure electric vehicle according to the present invention.
The figures are marked as follows: 1. a battery pack; 11. a battery pack; 12. a housing; 2. a heating assembly; 21. a driving motor; 211. a first water outlet pipe; 212. a first water inlet pipe; 22. a heat sink; 221. a second water outlet pipe; 3. a connection assembly; 31. a three-way reversing valve; 32. a third water outlet pipe; 33. a second water inlet pipe; 34. a connecting pipe; 35. a one-way valve; 4. an electronic water pump; 5. an expansion kettle; 6. and a radiating pipe.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
As shown in fig. 1 to 2, an embodiment of the present invention provides a heating system for a battery pack of a pure electric vehicle, including: a vehicle frame (not shown), a battery pack 1, a heating assembly 2, and a connection assembly 3.
The battery pack 1 includes a battery pack 11 and a case 12, and the battery pack 1 is fixed to a vehicle frame. The housing 12 has a separate mounting cavity (not shown) and heating cavity (not shown) therein. The battery pack 11 is placed in the installation cavity. The heating chamber may be a wrapping mounting chamber, or may be disposed on one or more sides of the mounting chamber, which is not limited herein, depending on the actual situation.
The heating assembly 2 comprises a driving motor 21 and a radiator 22, wherein the driving motor 21 and the radiator 22 are arranged on the frame, the driving motor 21 comprises a first water outlet pipe 211 and a first water inlet pipe 212, and the first water outlet pipe 211 is communicated with a water inlet of the radiator 22; radiator 22 has a second outlet pipe 221.
The connecting assembly 3 comprises a three-way reversing valve 31, a third water outlet pipe 32, a second water inlet pipe 33 and a connecting pipeline 34, wherein the three-way reversing valve 31 is respectively communicated with the second water outlet pipe 221, the first end of the second water inlet pipe 33 and the first end of the connecting pipeline 34, the second end of the second water inlet pipe 33 is communicated with the inlet end of the heating cavity, the first end of the third water outlet pipe 32 is communicated with the outlet end of the heating cavity, the second end of the third water outlet pipe 32 is communicated with the connecting pipeline 34, and the second end of the connecting pipeline 34 is communicated with the first water inlet pipe 212.
Specifically, the three-way reversing valve 31 can control the second water outlet pipe 221 to be communicated with the connecting pipeline 34, so that the cooling liquid flows through the first water outlet pipe 211 in the driving motor 21 to enter the radiator 22, then enters the second water inlet pipe 33 through the second water outlet pipe 221 and is led into the heating cavity of the battery pack 1, and the battery pack 11 is heated. Then, the heat in the driving motor 21 is taken away after the heat enters the driving motor 21 through the third water outlet pipe 32, the connecting pipeline 34 and the first water inlet pipe 212, and the heat of the driving motor 21 is circularly used for heating the battery pack 1.
Or the three-way reversing valve 31 controls the second water outlet pipe 221 to be communicated with the second water inlet pipe 33, so that the cooling liquid flows in the driving motor 21 and enters the radiator 22 through the first water outlet pipe 211, heat of the driving motor 21 is radiated through the radiator 22, then the cooled cooling liquid enters the connecting pipeline 34 through the second water outlet pipe 221 and is led into the driving motor 21 again, and the heat in the driving motor 21 is continuously taken away.
When the battery pack 1 needs to be heated, the three-way reversing valve 31 enables the second water outlet pipe 221 of the radiator 22 to be communicated with the second water inlet pipe 33, and enables the second water outlet pipe 221 and the connecting pipeline 34 to be in a closed state, so that cooling liquid flows from the driving motor 21 to the radiator 22, enters the heating cavity through the second water outlet pipe 221 and the second water inlet pipe 33 to heat the battery pack 11, and then circularly flows the cooling liquid into the driving motor 21 from the third water outlet pipe 32 and the connecting pipeline 34, and further continuous cooling of the driving motor 21 and continuous heating of the battery pack 11 are achieved.
When the battery pack 1 reaches the optimal working temperature, the three-way reversing valve 31 enables the second water outlet pipe 221 of the radiator 22 to be communicated with the connecting pipeline 34, and enables the second water outlet pipe 221 and the second water inlet pipe 33 to be in a closed state, so that cooling liquid flows from the driving motor 21 to the radiator 22, heat of the driving motor 21 is dissipated through the radiator 22, and then cooled cooling liquid circularly flows into the driving motor 21 from the connecting pipeline 34 and the first water inlet pipe 212, and cooling of the driving motor 21 is achieved.
The invention makes the three-way reversing valve 31 communicated with the second water outlet pipe 221, the first end of the second water inlet pipe 33 and the first end of the connecting pipeline 34 respectively by communicating the first water outlet pipe 211 of the driving motor 21 with the water inlet of the radiator 22, the second end of the second water inlet pipe 33 is communicated with the inlet end of the heating cavity, the first end of the third water outlet pipe 32 is communicated with the outlet end of the heating cavity, the second end of the third water outlet pipe 32 is communicated with the connecting pipeline 34, and the second end of the connecting pipeline 34 is communicated with the first water inlet pipe 212. When the battery pack 1 needs to be heated, the three-way reversing valve 31 enables the second water outlet pipe 221 of the radiator 22 to be communicated with the second water inlet pipe 33, and enables the second water outlet pipe 221 and the connecting pipeline 34 to be in a closed state, so that cooling liquid flows from the driving motor 21 to the radiator 22, enters the heating cavity through the second water outlet pipe 221 and the second water inlet pipe 33 to heat the battery pack 11, then circularly flows into the driving motor 21 from the third water outlet pipe 32 and the connecting pipeline 34, cooling of the driving motor 21 and heating of the battery pack 11 are further achieved, heat generated during operation of the driving motor 21 is effectively utilized, the problem of continuous voyage attenuation caused by independent heating of the battery pack 1 in winter is avoided, the continuous voyage capability of a pure electric vehicle is improved, the service life of the electric vehicle is prolonged, and the use cost is reduced.
In one embodiment of the heating system of the battery pack of the pure electric vehicle of the present invention, the three-way reversing valve 31 closes the second water outlet pipe 221 to communicate with the connection pipe 34, so that the first water outlet pipe 211, the second water outlet pipe 221, the second water inlet pipe 33, the third water outlet pipe 32, the connection pipe 34 and the first water inlet pipe 212 form a circulation channel; or the three-way directional valve 31 closes the second water outlet pipe 221 to communicate with the second water inlet pipe 33 so that the first water outlet pipe 211, the second water outlet pipe 221, the connection pipe 34 and the first water inlet pipe 212 form a circulation channel.
In this embodiment, when the battery pack 1 needs to be heated, the three-way reversing valve 31 closes the second water outlet pipe 221 to be communicated with the connecting pipe 34, so that the second water outlet pipe 221 is communicated with the second water inlet pipe 33, and the first water outlet pipe 211, the second water outlet pipe 221, the second water inlet pipe 33, the third water outlet pipe 32, the connecting pipe 34 and the first water inlet pipe 212 form a circulation channel, heat in the driving motor 21 is taken away by cooling liquid, and the cooling liquid is led into the heating cavity of the battery pack 1 through the first water outlet pipe 211, the second water outlet pipe 221 and the second water inlet pipe 33, so as to heat the battery pack 11; and the cooling liquid cooled after heat exchange is led into the driving motor 21 through the third water outlet pipe 32, the connecting pipeline 34 and the first water inlet pipe 212, and the driving motor 21 is subjected to circulating cooling treatment.
When the battery pack 1 reaches the optimal working temperature, the three-way reversing valve 31 closes the second water outlet pipe 221 to be communicated with the second water inlet pipe 33, so that the second water outlet pipe 221 is communicated with the connecting pipeline 34, and heat of the driving motor 21 is further dissipated through the radiator 22. By the arrangement, the battery pack 11 is always kept in the optimal working temperature range for use, the service life of the battery pack 1 is prolonged, and energy sources are saved.
In one embodiment of the heating system of the battery pack of the pure electric vehicle of the present invention, the three-way directional valve 31 is provided with sealing rings at the junctions with the second outlet pipe 221, the first end of the second inlet pipe 33 and the first end of the connecting pipe 34, respectively.
According to the invention, the sealing rings are respectively arranged at the joints of the three-way reversing valve 31 and the first water outlet pipe 221, the first end of the second water inlet pipe 33 and the first end of the connecting pipeline 34, so that the tightness of the connection of the three-way reversing valve 31 with the second water outlet pipe 221, the second water inlet pipe 33 and the connecting pipeline 34 is improved, and the situation that accidents occur in automobiles due to poor tightness of the three-way reversing valve 31 is avoided.
In one embodiment of the heating system for the battery pack of the pure electric vehicle, the third water outlet pipe 32 is provided with a check valve 35 for preventing the third water outlet pipe 32 from flowing back.
In this embodiment, when the battery pack 1 needs to be heated, the three-way reversing valve 31 closes the second water outlet pipe 221 to communicate with the connecting pipe 34, so that the second water outlet pipe 221 communicates with the second water inlet pipe 33, and at this time, the one-way valve 35 turns on the third water outlet pipe 32, so that the cooling liquid can enter the connecting pipe 34 through the third water outlet pipe 32.
When the battery pack 1 reaches the optimal working temperature, the three-way reversing valve 31 closes the second water outlet pipe 221 to be communicated with the second water inlet pipe 33, so that the second water outlet pipe 221 is communicated with the connecting pipeline 34, and at the moment, the one-way valve 35 closes the third water outlet pipe 32, so that the cooling liquid in the connecting pipeline 34 cannot enter the heating cavity from the third water outlet pipe 32, and the reflux problem that the cooling liquid enters the third water outlet pipe 32 from the connecting pipeline 34 to be led into the heating cavity is avoided.
In one embodiment of the battery pack heating system for the pure electric vehicle, the heating assembly 2 further comprises an electronic water pump 4, and the electronic water pump 4 is connected with the connecting pipeline 34, so that the cooling liquid is cooled again through the electronic water pump 4, and the driving motor 21 can be ensured to normally operate and the service life of the driving motor is prolonged. And the pressure and the flow of the cooling liquid can be accurately controlled through the electronic water pump 4, the electronic water pump 4 ensures the circulating flow of the cooling liquid in the connecting assembly 3 through pressurizing the cooling liquid, and effectively takes away the heat generated by the driving motor 21, so that the engine is prevented from overheating.
In one embodiment of the battery pack heating system of the present invention, the battery pack heating system of the present invention further comprises a heat dissipating assembly comprising an expansion kettle 5, the expansion kettle 5 being in communication with the connecting conduit 34 for exhausting heat from the radiator 22 and the driving motor 21. The invention discharges the gas in the connecting component 3 through the automobile expansion water tank, and supplies the cooling liquid in the connecting component 3, and further increases the pressure of the electronic water pump 4 by increasing the pressure of the connecting component 3, and also aims to prevent the occurrence of cavitation damage of the electronic water pump 4.
In one embodiment of the present invention, the heat dissipating assembly further comprises a heat dissipating tube 6, a first end of the heat dissipating tube 6 being in communication with a second end of the connecting conduit 34, and a second end of the heat dissipating tube 6 being in communication with the expansion kettle.
According to the expansion water tank, the first end of the radiating pipe 6 is communicated with the second end of the connecting pipeline 34, and the second end of the radiating pipe 6 is communicated with the expansion water tank, so that the working efficiency of the expansion water tank is guaranteed.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (7)
1. A battery pack heating system for a blade electric vehicle, comprising: a frame;
the battery pack comprises a battery pack and a shell, wherein the shell is internally provided with a mounting cavity and a heating cavity which are separated;
The heating assembly comprises a driving motor and a radiator, wherein the driving motor and the radiator are both arranged on the frame, the driving motor comprises a first water outlet pipe and a first water inlet pipe, and the first water outlet pipe is communicated with a water inlet of the radiator; the radiator is provided with a second water outlet pipe;
The connecting assembly comprises a three-way reversing valve, a third water outlet pipe, a second water inlet pipe and a connecting pipeline, wherein the three-way reversing valve is respectively communicated with the second water outlet pipe, the first end of the second water inlet pipe is communicated with the first end of the connecting pipeline, the second end of the second water inlet pipe is communicated with the inlet end of the heating cavity, the first end of the third water outlet pipe is communicated with the outlet end of the heating cavity, the second end of the third water outlet pipe is communicated with the connecting pipeline, and the second end of the connecting pipeline is communicated with the first water inlet pipe.
2. The battery pack heating system of a pure electric vehicle according to claim 1, wherein the three-way reversing valve closes the second water outlet pipe to communicate with the connecting pipe so that the first water outlet pipe, the second water inlet pipe, the third water outlet pipe, the connecting pipe and the first water inlet pipe form a circulation channel; or the three-way reversing valve closes the second water outlet pipe to be communicated with the second water inlet pipe, so that the first water outlet pipe, the second water outlet pipe, the connecting pipeline and the first water inlet pipe form a circulating channel.
3. The battery pack heating system of a pure electric vehicle according to claim 1, wherein the three-way reversing valve is provided with a sealing ring at the connection with the second outlet pipe, the first end of the second inlet pipe and the first end of the connecting pipe, respectively.
4. The battery pack heating system of the pure electric vehicle according to claim 1, wherein the third water outlet pipe is provided with a one-way valve for preventing the third water outlet pipe from flowing back.
5. The battery pack heating system of claim 1, wherein the heating assembly further comprises an electronic water pump, the electronic water pump being connected to the connecting conduit.
6. The battery pack heating system of claim 1, further comprising a heat dissipating assembly comprising an expansion kettle in communication with the connecting conduit for exhausting heat from the heat sink and the drive motor.
7. The battery pack heating system of claim 6, wherein the heat dissipating assembly further comprises a heat dissipating tube having a first end in communication with the second end of the connecting conduit and a second end in communication with the expansion kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410354743.2A CN118061862A (en) | 2024-03-27 | 2024-03-27 | Battery pack heating system of pure electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410354743.2A CN118061862A (en) | 2024-03-27 | 2024-03-27 | Battery pack heating system of pure electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118061862A true CN118061862A (en) | 2024-05-24 |
Family
ID=91100213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410354743.2A Pending CN118061862A (en) | 2024-03-27 | 2024-03-27 | Battery pack heating system of pure electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118061862A (en) |
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2024
- 2024-03-27 CN CN202410354743.2A patent/CN118061862A/en active Pending
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