CN218627323U - Water heater using double energy sources - Google Patents
Water heater using double energy sources Download PDFInfo
- Publication number
- CN218627323U CN218627323U CN202222725233.0U CN202222725233U CN218627323U CN 218627323 U CN218627323 U CN 218627323U CN 202222725233 U CN202222725233 U CN 202222725233U CN 218627323 U CN218627323 U CN 218627323U
- Authority
- CN
- China
- Prior art keywords
- water
- water tank
- heating
- pipe
- heating system
- 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.)
- Active
Links
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model relates to a water heater technical field, especially an utilize water heater of dual energy, comprising a water tank, the inside first heating pipe that is equipped with of water tank, the winding of water tank outer wall has the second heating pipe, the both ends of first heating pipe are all connected in the lateral wall of water tank, the both ends of first heating pipe stretch out the water tank outer and connect first heating system, second heating system is connected to the second heating pipe, the lower part of water tank is equipped with outside water supply connector, the upper portion of water tank is equipped with outside water supply connector, the both ends of first heating pipe are located between outside water supply connector and the outside water supply connector, first heating system and second heating system can heat the water in the water tank simultaneously, shorten the time of heating, the heating efficiency is improved, the time of sparingly heating, first heating system and second heating system can also heat the water in the water tank alone, make the mode of heating have three kinds, can change the heating method under the different situation, reach the high-efficient effect of utilizing dual energy hydrothermal.
Description
Technical Field
The utility model relates to a water heater technical field, especially a water heater utilizing dual energy.
Background
The water heater is a device which can increase the temperature of cold water into hot water in a certain time by various physical principles. Generally, the heating principle is different, and the heating principle is generally divided into an electric water heater, a gas water heater and the like.
The preheating waiting time of the electric water heater on the market is long, the electric water heater needs preheating before being used, in the heating process, the heat transfer is slow, the heating efficiency is low, waiting is needed, and a user with a fast life rhythm is inconvenient to use. The gas water heater is not environment-friendly, is easy to be poisoned, can discharge carbon dioxide, is easy to cause gas leakage, explosion accidents and the like when in use.
SUMMERY OF THE UTILITY MODEL
To the above defect, the utility model aims to provide an utilize water heater of dual energy, first heating system and second heating system can heat the water in the water tank simultaneously, shortens the time of heating, improves heating efficiency, and first heating system is solar heating system, and second heating system can heating system for the air, and first heating system and second heating system have the security performance height, do not have hidden danger such as carbon dioxide poisoning and electric shock.
To achieve the purpose, the utility model adopts the following technical proposal:
a water heater utilizing dual energy sources comprises a water tank, wherein a first heating pipe is arranged inside the water tank, a second heating pipe is wound on the outer wall of the water tank, and two ends of the first heating pipe are connected to the side wall of the water tank; two ends of the first heating pipe extend out of the water tank and are connected with a first heating system, and the second heating pipe is connected with a second heating system; the lower part of the water tank is provided with an external water inlet joint, the upper part of the water tank is provided with an external water outlet joint, and two ends of the first heating pipe are positioned between the external water inlet joint and the external water outlet joint 。
Further, the first heating system is a solar heating system.
Further, the second heating system is an air energy heating system.
Further, a shell is arranged at the top of the water tank, and the second heating system is installed inside the shell.
Furthermore, a first water guide pipe is arranged at one end of the external water outlet connector, the first water guide pipe is positioned inside the water tank, and the first water guide pipe is bent upwards; the inner wall of the external water outlet joint is provided with threads, and the first water guide pipe is in threaded connection with the external water outlet joint.
Furthermore, an external water inlet joint is arranged at the lower part of the water tank, a second water guide pipe is arranged at one end of the external water inlet joint, and the second water guide pipe is positioned inside the water tank; the external water inlet joint is provided with a threaded hole, and the second water guide pipe is in threaded connection with the external water inlet joint.
Furthermore, the outer wall of the water tank is provided with a temperature sensing pipe joint, the temperature sensing pipe joint is connected with a temperature sensing pipe, and the temperature sensing pipe is arranged inside the water tank.
Furthermore, an electric heating joint is arranged on the side wall of the water tank and communicated with the inside of the water tank.
Furthermore, a circulating water inlet joint and a circulating water outlet joint are arranged on the side wall of the water tank, and the circulating water inlet joint and the circulating water outlet joint are respectively connected to two ends of the first heating pipe; the circulating water inlet joint is positioned above the circulating water outlet joint.
Furthermore, the bottom of the water tank is provided with a drainage connector, the drainage connector is communicated with the inside of the water tank, the side wall of the water tank is provided with a PT valve connector, the PT valve connector is communicated with the inside of the water tank, and the inside of the water tank is provided with a magnesium rod.
The utility model provides a technical scheme can include following beneficial effect: inside first heating pipe that is equipped with of water tank, the winding of water tank outer wall has the second heating pipe, the both ends of first heating pipe stretch out outside the water tank and connect first heating system, second heating system is connected to the second heating pipe, first heating pipe and second heating pipe can heat the water in the water tank simultaneously, shorten the time of heating, improve heating efficiency, the time of sparingly heating, first heating system is solar heating system, second heating system is air energy heating system, first heating system and second heating system have the security performance height, do not have hidden danger such as carbon dioxide poisoning and electric shock.
Drawings
Fig. 1 is a schematic structural diagram of an internal part of a water heater using dual energy sources according to an embodiment of the present invention;
fig. 2 is one of the schematic structural diagrams of the external part of the water heater using dual energy according to the embodiment of the present invention;
FIG. 3 is a schematic diagram of a second heating system according to an embodiment of the present invention;
fig. 4 is a second schematic structural diagram of an external portion of a water heater using dual energy according to an embodiment of the present invention.
Wherein: 1-a second heating system, 2-a water tank, 3-a first heating pipe, 4-a circulating water joint, 5-an external water inlet joint, 6-an external water outlet joint, 7-an electric heating joint, 8-a second heating pipe, 9-a first heating system, 10-a pipeline, 11-an expansion valve, 12-an evaporator, 13-a compressor, 14-a shell, 15-a fan, 16-a heat dissipation hole, 17-a first water guide pipe, 18-a second water guide pipe, 19-a temperature sensing pipe joint, 20-a temperature sensing pipe, 21-a magnesium rod, 22-a water discharge joint, 23-a PT valve joint and 24-a circulating water outlet joint.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A water heater using dual energy according to an embodiment of the present invention will be described with reference to fig. 1 to 4.
A water heater utilizing dual energy comprises a water tank 2, wherein a first heating pipe 3 is arranged inside the water tank 2, a second heating pipe 8 is wound on the outer wall of the water tank 2, and two ends of the first heating pipe 3 are connected to the side wall of the water tank 2; two ends of the first heating pipe 3 extend out of the water tank 2 and are connected with a first heating system 9, and the second heating pipe 8 is connected with a second heating system 1; an external water inlet joint 5 is arranged at the lower part of the water tank 2, an external water outlet joint 6 is arranged at the upper part of the water tank 2, and two ends of the first heating pipe 3 are positioned between the external water inlet joint 5 and the external water outlet joint 6 。
The inside first heating pipe 3 that is equipped with of water tank 2, the both ends of first heating pipe 3 stretch out outside water tank 2 and are connected first heating system 9, and the water in the first heating system 9 accessible first heating pipe 3 heating water tank 2, and first heating pipe 3 heats inside water tank 2.
The outer wall of the water tank 2 is wound with a second heating pipe 8, the second heating pipe 8 is connected with a second heating system 1, the second heating system 1 heats water in the water tank 2 through the second heating pipe 8, and the second heating pipe 8 heats water in the water tank 2 from the outer wall of the water tank 2.
The first heating pipe 3 and the second heating pipe 8 can heat the water in the water tank 2 at the same time, so that the heating time is shortened, the heat transfer is fast, the heating efficiency is improved, and the heating time is saved. The first heating pipe 3 and the second heating pipe 8 can also heat the water in the water tank 2 independently, so that the heating modes are three, the heating modes can be replaced under different conditions, and the effect of efficiently utilizing double-energy hot water is achieved.
The lower part of water tank 2 is equipped with outside water supply connector 5, and water flows into water tank 2 through outside water supply connector 5 inside, heats, and the upper portion of water tank 2 is equipped with outside water outlet connector 6, utilizes the principle of cold under the liquid is hot, and the higher density of water is less, and the in-process hot water that heats can be continuous come-up and the water of relative temperature low point will sink to the lower part, guarantees that hot water from outside water outlet connector 6 flows out.
In particular, the first heating system 9 is a solar heating system. The solar heating system is a heating device which converts solar energy into heat energy and heats water from low temperature to high temperature. The solar heating system adopts a vacuum tube type, and consists of related parts such as a heat collecting tube, a water storage tank, a bracket and the like, solar energy is converted into heat energy mainly by the vacuum heat collecting tube, and the vacuum heat collecting tube generates microcirculation to obtain the required hot water by utilizing the principle that hot water floats upwards and cold water sinks.
The solar heating system has the characteristics of saving electric energy, protecting the environment, having no pollution and the like, can normally operate only by sunlight irradiation, has outstanding energy-saving effect, can save a large amount of electric charges, and is economical and practical. The solar heating system does not discharge carbon dioxide, is difficult to knock accidents and has good safety performance.
It should be noted that the first heating system 9 can be used alone under the condition of having sunlight, and can heat the water in the water tank 2, thereby saving a large amount of power and saving electricity charges for users.
In particular, the second heating system 1 is an air-heatable system. The second heating system 1 includes an expansion valve 11, an evaporator 12 and a compressor 13 connected in series in sequence through a pipe 10, wherein one end of the expansion valve 11 is communicated with one end of the second heating pipe 8 through the pipe 10, and one end of the compressor 13 is communicated with the other end of the second heating pipe 8 through the pipe 10.
The refrigerant flows out of the expansion valve 11 to become low-temperature low-pressure liquid, then flows into the evaporator 12, absorbs heat in the air through the evaporator 12, turns the refrigerant into low-temperature low-pressure gas, then, the gas is compressed by the compressor 13 to become high-temperature high-pressure gas, the high-temperature high-pressure gas is sent into the second heating pipe 8 through the pipeline 10, the high-temperature high-pressure gas in the second heating pipe 8 exchanges heat with water in the water tank 2, the heat is transmitted to the water in the water tank 2 in a jetting manner, after the high-temperature high-pressure gas in the second heating pipe 8 exchanges heat with the water in the water tank 2, the high-temperature high-pressure gas flows out through the pipeline 10 connected with the other end of the second heating pipe 8 to become low-temperature high-pressure liquid, then flows back to the expansion valve 11 to become low-temperature low-pressure liquid, and the process is repeatedly circulated, so that the water in the water tank 2 can be heated.
The water tank 2 is generally an inner container of a water heater on the market, and the second heating pipe 8 is convenient to transmit heat to water in the water tank 2.
The second heating tube 8 is a copper tube. The copper pipe is fast in heating, good in heat conduction performance, good in toughness, convenient to deform according to the water tanks 2 in different shapes, strong in corrosion resistance and long in service life.
It should be noted that the second heating system 1 may be used alone in a case where sunlight is weak or insufficient, and the second heating system 1 may be used according to whether the first heating system 9 satisfies a use condition.
The first heating system 9 and the second heating system 1 do not need power supply and combustion gas basically, and can achieve the effect of clean energy. The first heating system 9 and the second heating system 1 have high safety performance at the same time, and hidden dangers such as carbon dioxide poisoning and electric shock do not exist.
Specifically, the top of the water tank 2 is provided with a housing 14, and the second heating system 1 is installed inside the housing 14.
The housing 14 serves to protect the air energy heating system.
The second heating system 1 further comprises a fan 15, the fan 15 is disposed on one side of the evaporator 12, heat dissipation holes 16 are disposed on the side wall of the housing 14, and the heat dissipation holes 16 are installed corresponding to the positions of the fan 15. The fan 15 can accelerate the air flow, and the heat dissipation holes 16 facilitate the air flow into the shell 14, thereby facilitating the work of the fan 15.
Specifically, one end of the external water outlet joint 6 is provided with a first water guide pipe 17, the first water guide pipe 17 is positioned inside the water tank 2, and the first water guide pipe 17 is bent upwards; the inner wall of the external water outlet joint 6 is provided with threads, and the first water guide pipe 17 is in threaded connection with the external water outlet joint 6.
The heated water in the water tank 2 is called hot water. The hot water flows out from the first water introduction pipe 17 to the outside for use by the user. The principle that the liquid is hot and cold at the top can be fully utilized by bending the first water guide pipe 17 upwards, the higher the temperature of the water is, the lower the density of the water is, the hot water can continuously float upwards in the heating process, the water with a low relative temperature can sink to the lower part, and the first water guide pipe 17 ensures that the flowing hot water is the highest temperature water relative to the water in the water tank 2.
The external water outlet joint 6 is provided with a threaded hole so as to be connected with the first water guide pipe 17, and the external pipeline can be connected to the external water outlet joint 6 so as to facilitate the outflow of hot water from the external pipeline.
Specifically, an external water inlet joint 5 is arranged at the lower part of the water tank 2, a second water guide pipe 18 is arranged at one end of the external water inlet joint 5, and the second water guide pipe 18 is positioned inside the water tank 2; the external water inlet joint 5 is provided with a threaded hole, and the second water guide pipe 18 is in threaded connection with the external water inlet joint 5. The second water guide pipe 18 facilitates the external water to flow into the water tank 2 for heating. The surface that second aqueduct 18 is located 2 inside one ends of water tank is provided with a plurality of apopore, and outside rivers flow to second aqueduct 18, can flow out at a plurality of apopore simultaneously, play and filter debris and avoid water pressure too big, produce the impact force to water tank 2.
Specifically, a temperature sensing pipe joint 19 is provided on the outer wall of the water tank 2, a temperature sensing pipe 20 is connected to the temperature sensing pipe joint 19, and the temperature sensing pipe 20 is provided inside the water tank 2. The temperature sensing pipe 20 is mainly used to detect the temperature of the water inside the water tank 2.
Specifically, the side wall of the water tank 2 is provided with an electric heating joint 7, and the electric heating joint 7 communicates with the inside of the water tank 2. In another embodiment of the present technical solution, the electric heating connector 7 is used for installing an electric heating tube, and in a region with a lower temperature, the electric heating tube can be added to the electric heating connector 7 to increase the heating speed of the water in the water tank 2.
Specifically, the side wall of the water tank 2 is provided with a circulating water inlet joint 4 and a circulating water outlet joint 24, and the circulating water inlet joint 4 and the circulating water outlet joint 24 are respectively connected to two ends of the first heating pipe 3; the water circulating inlet joint 4 is positioned above the water circulating outlet joint 24. The circulating water inlet joint 4 and the circulating water outlet joint 24 facilitate connection of the first heating pipe 3 and the first heating system 9, so that the first heating pipe 3 and the first heating system 9 can be conveniently connected.
The water heated by the first heating system 9 flows from the circulating water inlet joint 4, passes through the first heating pipe 3 and flows out from the circulating water outlet joint 24, and heat energy is released in the first heating pipe 3 to heat the water in the water tank 2. The circulating water inlet joint 4 is positioned above the circulating water outlet joint 24, so that the heat exchange effect is good, and the heat exchange efficiency is improved.
Specifically, the bottom of the water tank 2 is provided with a drain joint 22, the drain joint 22 communicates with the inside of the water tank 2, the side wall of the water tank 2 is provided with a PT valve joint 23, the PT valve joint 23 communicates with the inside of the water tank 2, and the inside of the water tank 2 is provided with a magnesium rod 21. When the water tank 2 needs to be cleaned after being used for a long time, the water discharge connector 22 can be opened, water in the water tank 2 can be discharged through the water discharge connector 22, and the water discharge connector 22 is installed below the water tank 2 so that water can flow out of the water tank conveniently.
PT valve joint 23 is convenient for install the PT valve, and the temperature or the pressure of water tank 2 reach the design threshold, and the PT valve can automatic pressure release reduce temperature and pressure, prevents that the water pressure of water tank 2 is too big, plays the safety protection effect.
Two magnesium rods 21 are provided, and are respectively provided at the upper and lower ends of the inside of the water tank 2. Magnesium stick 21 is used for adsorbing the ion in the water tank 2 interior normal water, and protection water tank 2 and first heating pipe 3 utilize magnesium stick 21 to release magnesium ion and slow down the corruption of water alkali, incrustation scale to water tank 2 for preventing that water alkali, incrustation scale from attaching to in a large number in water tank 2.
Other constructions and operations of a dual energy utilizing water heater according to embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description of the present specification, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A water heater using dual energy sources is characterized in that: the water heater comprises a water tank, wherein a first heating pipe is arranged in the water tank, a second heating pipe is wound on the outer wall of the water tank, and two ends of the first heating pipe are connected to the side wall of the water tank;
two ends of the first heating pipe extend out of the water tank and are connected with a first heating system, and the second heating pipe is connected with a second heating system;
the water heater is characterized in that an external water inlet joint is arranged at the lower part of the water tank, an external water outlet joint is arranged at the upper part of the water tank, and two ends of the first heating pipe are positioned between the external water inlet joint and the external water outlet joint 。
2. A water heater using dual power according to claim 1, wherein: the first heating system is a solar heating system.
3. A water heater using dual power according to claim 2, wherein: the second heating system is an air energy heating system.
4. A water heater using dual power according to claim 3, wherein: the top of the water tank is provided with a shell, and the second heating system is installed inside the shell.
5. The water heater using dual power according to claim 1, wherein: a first water guide pipe is arranged at one end of the external water outlet joint, the first water guide pipe is positioned in the water tank, and the first water guide pipe is bent upwards;
the inner wall of the external water outlet joint is provided with threads, and the first water guide pipe is in threaded connection with the external water outlet joint.
6. The water heater using dual power according to claim 1, wherein: a second water guide pipe is arranged at one end of the external water inlet joint and is positioned inside the water tank;
the external water inlet joint is provided with a threaded hole, and the second water guide pipe is in threaded connection with the external water inlet joint.
7. A water heater using dual power according to claim 1, wherein: the temperature sensing pipe joint is arranged on the outer wall of the water tank and connected with a temperature sensing pipe, and the temperature sensing pipe is arranged inside the water tank.
8. The water heater using dual power according to claim 1, wherein: the side wall of the water tank is provided with an electric heating joint which is communicated with the inside of the water tank.
9. The water heater using dual power according to claim 1, wherein: a circulating water inlet joint and a circulating water outlet joint are arranged on the side wall of the water tank and are respectively connected to two ends of the first heating pipe;
the circulating water inlet joint is positioned above the circulating water outlet joint.
10. The water heater using dual power according to claim 1, wherein: the water tank is characterized in that a drainage connector is arranged at the bottom of the water tank and communicated with the inside of the water tank, a PT valve connector is arranged on the side wall of the water tank and communicated with the inside of the water tank, and a magnesium rod is arranged inside the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222725233.0U CN218627323U (en) | 2022-10-17 | 2022-10-17 | Water heater using double energy sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222725233.0U CN218627323U (en) | 2022-10-17 | 2022-10-17 | Water heater using double energy sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218627323U true CN218627323U (en) | 2023-03-14 |
Family
ID=85470504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222725233.0U Active CN218627323U (en) | 2022-10-17 | 2022-10-17 | Water heater using double energy sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218627323U (en) |
-
2022
- 2022-10-17 CN CN202222725233.0U patent/CN218627323U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201476306U (en) | Water tank of heat pump water heater | |
| CN201014816Y (en) | Double circulation heat storage water tank of solar energy water heater | |
| CN201196494Y (en) | Split solar water heater | |
| CN218627323U (en) | Water heater using double energy sources | |
| CN201973897U (en) | Split solar water heater taking gas as working medium | |
| CN201138025Y (en) | Water heating and boiling multifunctional machine of energy saving cyclic type air conditioner with water pump | |
| CN203533915U (en) | Compact liquid tubular type vacuum tube water heater compatible with phase transition and heat accumulation functions | |
| CN202328771U (en) | Air source heat pump structure | |
| CN201138065Y (en) | Water heating and boiling multifunctional machine of fluorine pipe line type air source heat pump with energy-saving cycle | |
| CN210141608U (en) | Big difference in temperature heat pump heat accumulation heating system | |
| CN209763258U (en) | Composite water tank for water heating system | |
| CN207779178U (en) | Residual neat recovering system for screw air compressor | |
| CN102620444B (en) | Flat plate solar water heater with built-in fin tubular heat exchange device | |
| CN202532739U (en) | Flat solar water heater internally provided with wing tube type heat exchange device | |
| CN201396954Y (en) | Modularized pressure-loaded solar energy collection device | |
| CN201138068Y (en) | Vertical heating apparatus with water distributor special for heat pump water heater | |
| CN202747671U (en) | Plug-in connected coil-free solar water heater water tank | |
| CN210141609U (en) | High-temperature heat source heat pump heat storage system | |
| CN213578112U (en) | Automatic return water air can water heater | |
| CN215766651U (en) | Novel pressure-bearing heat storage water tank | |
| CN212962242U (en) | Pressure-bearing solar water heater | |
| CN208595700U (en) | A kind of energy-saving type air energy heat pump water supply device | |
| CN209744486U (en) | Novel full-automatic non-pressure operation hot-water heating device | |
| CN214039001U (en) | Pressure-bearing solar water heater with efficient heat exchange | |
| CN108209541B (en) | Multipurpose waste heat recycling and water storage heat preservation gas steam box equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A water heater utilizing dual energy sources Effective date of registration: 20230707 Granted publication date: 20230314 Pledgee: Bank of China Limited by Share Ltd. Foshan branch Pledgor: FOSHAN SANGAO HEAT PRESERVATION WATER TANK Co.,Ltd. Registration number: Y2023980047693 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |