CN117469799A - Water heating heater and vehicle - Google Patents
Water heating heater and vehicle Download PDFInfo
- Publication number
- CN117469799A CN117469799A CN202311604383.9A CN202311604383A CN117469799A CN 117469799 A CN117469799 A CN 117469799A CN 202311604383 A CN202311604383 A CN 202311604383A CN 117469799 A CN117469799 A CN 117469799A
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- CN
- China
- Prior art keywords
- water
- water tank
- heater
- heating
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 305
- 238000010438 heat treatment Methods 0.000 title claims abstract description 85
- 230000017525 heat dissipation Effects 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 31
- 238000009434 installation Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 2
- 238000012546 transfer Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 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
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
- F24H1/162—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled using electrical energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/02—Casings; Cover lids; Ornamental panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/139—Continuous flow heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
Abstract
The invention belongs to the technical field of water heating heaters, and relates to a water heating heater and a vehicle. The water heating heater comprises a plurality of water tanks which are sequentially connected along a preset direction, wherein each water tank is provided with a water inlet flow channel, a water outlet flow channel and a plurality of branch flow channels communicated between the water inlet flow channel and the water outlet flow channel, and one water tank is also provided with a heater water inlet and a heater water outlet; each water inlet flow passage is respectively communicated with the water inlet of the heater, and each water outlet flow passage is respectively communicated with the water outlet of the heater; and a heating component is arranged between two adjacent water tanks. The water heating heater can improve the heat efficiency.
Description
Technical Field
The invention belongs to the technical field of water heating heaters, and particularly relates to a water heating heater and a vehicle.
Background
The heat power of the current PTC (Positive Temperature Coefficient ) water heating heater is greatly affected by the flow passage, and the flow resistance and heat exchange capacity of flowing media are affected by the flow passage structure. When the heat exchange capacity is low, heat emitted by the PTC heating element cannot be taken away in time by flowing media, the resistance of the PTC heating element can be increased, the heating power of the PTC water heating heater can be greatly reduced, the product performance and the heat efficiency are affected, and when the heat efficiency of the PTC water heating heater is low, more electric quantity of the hybrid car and the electric car can be consumed, and the endurance mileage of the hybrid car type and the pure electric car type is reduced.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the technical problem of low heat efficiency of the existing water heating heater, the water heating heater and the vehicle are provided.
In order to solve the technical problems, in one aspect, the embodiment of the invention provides a water heating heater, which comprises a plurality of water tanks connected in sequence along a preset direction, wherein each water tank is provided with a water inlet channel, a water outlet channel and a plurality of branch channels communicated between the water inlet channel and the water outlet channel, and one water tank is also provided with a heater water inlet and a heater water outlet; each water inlet flow passage is respectively communicated with the water inlet of the heater, and each water outlet flow passage is respectively communicated with the water outlet of the heater;
and a heating component is arranged between two adjacent water tanks.
According to the water heating heater provided by the embodiment of the invention, the flowing medium enters the water heating heater from the water inlet of the heater, is split into the water inlet channels of the water tanks in a parallel connection mode, flows to the water outlet channel after exchanging heat with the heating component in the split channels, finally is converged to the water outlet of the heater, and is discharged out of the water heating heater. This water heating heater carries out the layering through setting up a plurality of water tanks to the runner in the water heating heater, increases branch runner simultaneously, makes layer runner and branch runner be parallelly connected mode and arranges, has balanced medium fluid's velocity of flow, has avoided local high temperature, promotes the heat transfer effect, improves the thermal efficiency.
Optionally, the branch flow passages on the same water tank are arranged in parallel along a direction perpendicular to the preset direction.
Optionally, a water inlet sealing ring and a water outlet sealing ring are further arranged between two adjacent water tanks, the water inlet sealing ring is in sealing connection between the water inlet flow passages of two adjacent water tanks, and the water outlet sealing ring is in sealing connection between the water outlet flow passages of two adjacent water tanks.
Optionally, a heat-generating sealing member is further arranged between two adjacent water tanks, and the heat-generating sealing member is used for sealing a heat-generating component arranged between the two adjacent water tanks.
Optionally, each water tank includes a bottom shell and a heat dissipation plate connected with the bottom shell, and the branch flow passage is arranged between the bottom shell and the heat dissipation plate;
and the bottom shell of one water tank is connected with the heat dissipation plate of the other water tank between two adjacent water tanks.
Optionally, three water tanks are provided, and the three water tanks are respectively defined as a first water tank, a second water tank and a third water tank along the preset direction;
the two heating components are respectively defined as a first heating component and a second heating component along the preset direction;
the first heating component is arranged between the bottom shell of the first water tank and the heat dissipation plate of the second water tank, and the second heating component is arranged between the bottom shell of the second water tank and the heat dissipation plate of the third water tank.
Optionally, the water inlet of the heater and the water outlet of the heater are arranged on the third water tank;
the water inlet flow passage and the water outlet flow passage on the first water tank penetrate through the bottom shell of the first water tank;
the water inlet flow channel and the water outlet flow channel on the second water tank penetrate through the heat dissipation plate and the bottom shell of the second water tank;
the water inlet flow passage and the water outlet flow passage on the third water tank penetrate through the heat dissipation plate of the third water tank.
Optionally, a first protrusion is disposed on a side, facing the first heating component, of the heat dissipation plate of the second water tank, and the first protrusion abuts against the first heating component;
the heat radiation plate of the third water tank is provided with a second bulge towards one side of the second heating component, and the second bulge is abutted with the second heating component.
Optionally, the water heating heater further comprises a cover plate and an electric control assembly, wherein the cover plate is connected with the heat dissipation plate of the first water tank and forms an installation space with the heat dissipation plate of the first water tank; the electric control components are arranged in the installation space and are electrically connected with the heating components.
In another aspect, an embodiment of the present invention provides a vehicle including the water heating heater described above or the suspension system described above.
Drawings
FIG. 1 is a schematic diagram of a water heater according to an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of the first tank of FIG. 2;
FIG. 4 is a schematic illustration of the second tank of FIG. 2;
FIG. 5 is a schematic view of the third tank of FIG. 2;
fig. 6 is a schematic view of the internal flow channel of fig. 1.
Reference numerals in the specification are as follows: flowing medium
1. A water tank; 1a, a first water tank; 1b, a second water tank; 1c, a third water tank; 11. a water inlet flow passage; 12. a water outlet flow passage; 13. branching flow channels; 14. a heater water inlet; 15. a water outlet of the heater; 16. a bottom case; 17. a heat dissipation plate; 171. a first protrusion; 172. a second protrusion; 18. an electrical channel;
2. a heating component; 2a, a first heating component; 2b, a second heating component;
3. a diverter plate;
4. a water inlet sealing ring;
5. a water outlet sealing ring;
6. a heat-generating seal;
7. a cover plate;
8. an electrical control assembly;
9. a high-voltage plug connector;
10. a low-voltage plug-in connector.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, the water heater provided by the embodiment of the invention includes a plurality of water tanks 1 connected in sequence along a preset direction, each water tank 1 is provided with a water inlet channel 11, a water outlet channel 12, and a plurality of branch channels 13 communicated between the water inlet channel 11 and the water outlet channel 12, wherein one water tank 1 is further provided with a heater water inlet 14 and a heater water outlet 15. Each water inlet runner 11 is respectively communicated with the water inlet 14 of the heater, and each water outlet runner 12 is respectively communicated with the water outlet 15 of the heater.
A heating component 2 is arranged between two adjacent water tanks 1.
According to the water heating heater provided by the embodiment of the invention, the flowing medium enters the water heating heater from the water inlet 14 of the heater, is split into the water inlet channels 11 of the water tanks 1 in a parallel connection mode, flows to the water outlet channels 12 after exchanging heat between the flowing medium and the heating component 2 in the branch channels 13, is finally converged to the water outlet 15 of the heater, and is discharged out of the water heating heater. This water heating heater carries out the layering through setting up a plurality of water tanks 1 to the runner in the water heating heater, increases branch runner 13 simultaneously, makes layer runner and branch runner 13 be parallelly connected mode and arranges, has balanced medium fluid's velocity of flow, has avoided local high temperature, promotes the heat transfer effect, improves the thermal efficiency.
In one embodiment, as shown in fig. 6, the branch flow passages 13 on the same water tank 1 are arranged in parallel along a direction perpendicular to the preset direction. In the same water tank 1, two adjacent branch flow passages 13 are split by a splitter plate 3. The branch flow channels 13 in each water tank 1 introduce the flowing medium in the water inlet flow channel 11 into the water outlet flow channel 12 in a parallel connection mode, so that the flowing medium is sufficiently heated, and the heating efficiency is improved.
Preferably, on the same water tank 1, the width of each branch flow channel 13 is equal, and each branch flow channel is M-shaped, so as to reduce the flow resistance at a uniform flow rate.
In the embodiment shown in fig. 1 to 6, two branch flow passages 13 are provided on the same water tank 1, the two branch flow passages 13 are juxtaposed, and the widths of the two branch flow passages 13 are equal. In other embodiments, not shown in the drawings, the number of the branch flow passages can be other than two, such as 3, 4, etc., on the same water tank, and the number of the branch flow passages can be adjusted according to actual needs.
In an embodiment, as shown in fig. 2, a water inlet sealing ring 4 and a water outlet sealing ring 5 are further disposed between two adjacent water tanks 1, the water inlet sealing ring 4 is connected between the water inlet channels 11 of two adjacent water tanks 1 in a sealing manner, and the water outlet sealing ring 5 is connected between the water outlet channels 12 of two adjacent water tanks 1 in a sealing manner.
By arranging the water inlet sealing ring 4 between the adjacent water inlet flow channels 11, the overflow of the flowing medium in the water inlet flow channels 11 at the joint of the water inlet flow channels 11 is avoided. By arranging the water outlet sealing ring 5 between the adjacent water outlet flow channels 12, the overflow of the flowing medium in the water outlet flow channels 12 at the junction of the water outlet flow channels 12 is avoided.
In an embodiment, as shown in fig. 2, a heat-generating sealing member 6 is further disposed between two adjacent water tanks 1, and the heat-generating sealing member 6 is used for sealing the heat-generating component 2 disposed between two adjacent water tanks 1, so that the heat-generating component 2 is prevented from being damaged by flowing medium, and the heat-generating component 2 is prevented from being polluted by external dust.
In one embodiment, the heat generating component 2 is a heat generating chip.
In one embodiment, as shown in fig. 2 to 5, each of the water tanks 1 includes a bottom case 16 and a heat dissipation plate 17 connected to the bottom case 16, and the branch flow passage 13 is disposed between the bottom case 16 and the heat dissipation plate 17.
Between two adjacent water tanks 1, the bottom shell 16 of one water tank 1 is connected with the heat dissipation plate 17 of the other water tank 1, so that each heating component 2 can be contacted with one heat dissipation plate 17, heat dissipation and temperature reduction of each heating component 2 are ensured, and the temperature overheating of each heating component 2 is avoided.
In one embodiment, the bottom shell 16 of each water chamber 1 and the heat dissipation plate 17 can be connected by friction welding to ensure the sealing structure of each water chamber.
In an embodiment, as shown in fig. 1 to 5, three water tanks 1 may be provided, and the three water tanks 1 are a first water tank 1a, a second water tank 1b, and a third water tank 1c along the predetermined direction. The flow dividing plate 3 of the first water tank 1a is arranged on the bottom shell 16 of the first water tank 1a, the flow dividing plate 3 of the second water tank 1b is arranged on the bottom shell 16 of the second water tank 1b, the flow dividing plate 3 of the third water tank 1c is arranged on the heat radiating plate 17 of the third water tank 1c,
the number of the heating components 2 is two, and the two heating components 2 are a first heating component 2a and a second heating component 2b along the preset direction.
The first heating assembly 2a is disposed between the bottom case 16 of the first water tank 1a and the heat dissipating plate 17 of the second water tank 1b, and the second heating assembly 2b is disposed between the bottom case 16 of the second water tank 1b and the heat dissipating plate 17 of the third water tank 1c.
Specifically, the first water tank 1a, the second water tank 1b and the third water tank 1c may be connected by screws, and the first heating component 2a and the second heating component 2b may be compressed while being connected, so as to achieve the heating purpose.
Further, as shown in fig. 1 to 5, the heater water inlet 14 and the heater water outlet 15 are provided on the third water tank 1c.
The water inlet channel 11 and the water outlet channel 12 on the first water tank 1a penetrate through the bottom shell 16 of the first water tank 1 a. The water inlet channel 11 and the water outlet channel 12 on the second water tank 1b penetrate through the heat dissipation plate 17 and the bottom shell 16 of the second water tank 1 b. The water inlet channel 11 and the water outlet channel 12 on the third water tank 1c penetrate through the heat dissipation plate 17 of the third water tank 1c.
The flowing medium flows into the water inlet channel 11 on the first water tank 1a, the water inlet channel 11 on the second water tank 1b and the water inlet channel 11 on the third water tank 1c through the heater water inlet 14, then enters the first water tank 1a, the second water tank 1b and the third water tank 1c, after heat exchange, flows into the heater water outlet 15 through the water outlet channel 12 on the first water tank 1a, the water outlet channel 12 on the second water tank 1b and the water outlet channel 12 on the third water tank 1c, finally flows out from the heater water outlet 15, and the first heating component 2a and the second heating component 2b heat the flowing medium in the circulation process.
In a specific embodiment, as shown in fig. 4 and 5, a side of the heat dissipation plate 17 of the second water tank 1b facing the first heat generating component 2a is provided with a first protrusion 171. By providing the first protrusion 171, the contact between the heat radiating plate 17 of the second water tank 1b and the first heat generating assembly 2a is more sufficient, and the heat transfer efficiency is improved.
A side of the heat radiating plate 17 of the third water tank 1c facing the second heat generating component 2b is provided with a second protrusion 172. By providing the second protrusions 172, the contact between the heat radiating plate 17 of the third water tank 1c and the second heat generating component 2b is made more sufficient, and the heat transfer efficiency is improved.
Preferably, four first protrusions 171 are provided on the heat dissipation plate 17 of the second water tank 1b, and each first protrusion 171 has a rectangular shape. Four second protrusions 172 are provided on the heat dissipation plate 17 of the third water tank 1c, and each second protrusion 172 is rectangular.
In one embodiment, as shown in fig. 1 and 2, the water heating heater further includes a cover plate 7 and an electric control assembly 8, wherein the cover plate 7 is connected with the heat dissipation plate 17 of the first water tank 1a, and an installation space is defined between the cover plate 7 and the heat dissipation plate 17 of the first water tank 1 a. The electric control assembly 8 is installed in the installation space, and the electric control assembly 8 is electrically connected with each heating assembly 2 to control the opening or closing of each heating assembly 2, thereby controlling the heating of each heating assembly 2.
At this time, the heat dissipation plates 17 of the three water tanks 1 are used for heat dissipation of one electric control unit 8 and two heat generating units 2, respectively.
In one embodiment, as shown in fig. 2 to 6, in order to reduce the occupied space of the water heater and increase the space occupation ratio, an electrical channel 18 for electrical connection may be provided at the edge positions of the second water tank 1b and the third water tank 1c, so as to facilitate the electrical connection between the electric control unit 8 and each of the heat generating units 2.
At this time, the heat-generating sealing member 6 may also be used to seal the electrical path 18, ensuring the stability of electrical communication.
In one embodiment, as shown in fig. 1 to 3, to achieve the current supply and external communication of the electric control assembly 8, the first housing 1a is further provided with a high voltage connector 9 and a low voltage connector 10, wherein the high voltage connector 9 is used for providing the electric control assembly 8 with current, and the low voltage connector 10 is used for external communication.
The vehicle provided by the embodiment of the invention comprises the water heating heater.
It should be noted that the water heating heater provided by the invention can be applied to the field of PTC water heating heaters of vehicles, but is not limited to the field of water heaters of vehicles.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The water heating heater is characterized by comprising a plurality of water tanks which are sequentially connected along a preset direction, wherein each water tank is provided with a water inlet channel, a water outlet channel and a plurality of branch channels communicated between the water inlet channel and the water outlet channel, and one water tank is also provided with a heater water inlet and a heater water outlet; each water inlet flow passage is respectively communicated with the water inlet of the heater, and each water outlet flow passage is respectively communicated with the water outlet of the heater;
and a heating component is arranged between two adjacent water tanks.
2. The water heating heater according to claim 1, wherein the branched flow passages on the same water tank are juxtaposed in a direction perpendicular to the preset direction.
3. The water heating heater according to claim 1, wherein a water inlet sealing ring and a water outlet sealing ring are further arranged between two adjacent water tanks, the water inlet sealing ring is in sealing connection with the water inlet flow channels of the two adjacent water tanks, and the water outlet sealing ring is in sealing connection with the water outlet flow channels of the two adjacent water tanks.
4. The water heater of claim 1, wherein a heat-generating seal is further provided between adjacent two of the water tanks, the heat-generating seal being for sealing a heat-generating component provided between adjacent two of the water tanks.
5. The water heater according to claim 1, wherein each of the water tanks includes a bottom case and a heat radiating plate connected to the bottom case, the branch flow passage being provided between the bottom case and the heat radiating plate;
and the bottom shell of one water tank is connected with the heat dissipation plate of the other water tank between two adjacent water tanks.
6. The water heating heater according to claim 5, wherein three of the water tanks are provided, and three of the water tanks are defined as a first water tank, a second water tank, and a third water tank, respectively, along the preset direction;
the two heating components are respectively defined as a first heating component and a second heating component along the preset direction;
the first heating component is arranged between the bottom shell of the first water tank and the heat dissipation plate of the second water tank, and the second heating component is arranged between the bottom shell of the second water tank and the heat dissipation plate of the third water tank.
7. The water heater of claim 6, wherein the heater water inlet and the heater water outlet are disposed on the third water tank;
the water inlet flow passage and the water outlet flow passage on the first water tank penetrate through the bottom shell of the first water tank;
the water inlet flow channel and the water outlet flow channel on the second water tank penetrate through the heat dissipation plate and the bottom shell of the second water tank;
the water inlet flow passage and the water outlet flow passage on the third water tank penetrate through the heat dissipation plate of the third water tank.
8. The water heating heater according to claim 7, wherein a side of the heat radiating plate of the second water tank facing the first heat generating component is provided with a first protrusion, and the first protrusion is abutted with the first heat generating component;
the heat radiation plate of the third water tank is provided with a second bulge towards one side of the second heating component, and the second bulge is abutted with the second heating component.
9. The water heater of claim 6, further comprising a cover plate and an electrical control assembly, wherein the cover plate is connected with the heat dissipation plate of the first water tank and encloses a mounting space with the heat dissipation plate of the first water tank; the electric control components are arranged in the installation space and are electrically connected with the heating components.
10. A vehicle comprising a water heating heater as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311604383.9A CN117469799A (en) | 2023-11-28 | 2023-11-28 | Water heating heater and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311604383.9A CN117469799A (en) | 2023-11-28 | 2023-11-28 | Water heating heater and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117469799A true CN117469799A (en) | 2024-01-30 |
Family
ID=89639735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311604383.9A Pending CN117469799A (en) | 2023-11-28 | 2023-11-28 | Water heating heater and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117469799A (en) |
-
2023
- 2023-11-28 CN CN202311604383.9A patent/CN117469799A/en active Pending
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