CN221437752U - Charger for electric vehicle and electric vehicle - Google Patents
Charger for electric vehicle and electric vehicle Download PDFInfo
- Publication number
- CN221437752U CN221437752U CN202323579383.6U CN202323579383U CN221437752U CN 221437752 U CN221437752 U CN 221437752U CN 202323579383 U CN202323579383 U CN 202323579383U CN 221437752 U CN221437752 U CN 221437752U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- charger
- heat
- electric vehicle
- dissipation oil
- 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
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本实用新型公开一种电动车用充电器及电动车，涉及电动车技术领域。该电动车用充电器包括充电器本体以及设置于所述充电器本体一侧的散热油箱，所述充电器本体内设置有发热元件，所述散热油箱内用于设置散热油，以通过所述散热油对所述发热元件产生的热量散热。该电动车用充电器及电动车能够兼顾密封性能和散热能力，既能实现防水，又能更好散热。
The utility model discloses a charger for electric vehicles and an electric vehicle, and relates to the technical field of electric vehicles. The charger for electric vehicles comprises a charger body and a heat dissipation oil tank arranged on one side of the charger body, a heating element is arranged in the charger body, and heat dissipation oil is arranged in the heat dissipation oil tank, so that the heat generated by the heating element is dissipated by the heat dissipation oil. The charger for electric vehicles and the electric vehicle can take into account both sealing performance and heat dissipation capacity, and can achieve both waterproofing and better heat dissipation.
Description
Technical Field
The utility model relates to the technical field of electric vehicles, in particular to a charger for an electric vehicle and the electric vehicle.
Background
With the development of new energy technology, electric vehicles are popular among more and more users due to the characteristics of low energy consumption, convenience, flexibility, green and pollution-free properties and the like, and two-wheeled electric vehicles are particularly popular. In order to ensure the normal use of the electric vehicle, the electric vehicle needs to be charged in time when the electric vehicle lacks electric energy, namely, an external power supply is connected by a charger to charge a storage battery in the electric vehicle.
Currently, most of the chargers on the market, whether lead-acid chargers or lithium battery chargers, adopt sealed shell heat dissipation or fan heat dissipation in heat dissipation. The shell adopting the sealing mode has good heat dissipation and waterproof performance, but can be basically only used on a low-power charger, and mainly because the larger the power is, the more serious the self-heating of the charger is, the heat dissipation of the shell is difficult to control the temperature rise, the user feel hot, and the service life of electronic devices in the charger is seriously influenced. The fan is adopted for heat dissipation, the cost is low, the application is wide, but because the fan directly blows the electronic device and directly circulates with the outside air through the shell grille, the charger is not waterproof, the charger cannot be normally used in environments such as wet rainy days, and potential safety hazards exist.
Disclosure of utility model
The utility model aims to provide a charger for an electric vehicle and the electric vehicle, which can achieve both sealing performance and heat dissipation capability, and can realize water resistance and better heat dissipation.
Embodiments of the present utility model are implemented as follows:
According to a first aspect of the embodiment of the utility model, a charger for an electric vehicle is provided, and the charger comprises a charger body and a heat dissipation oil tank arranged on one side of the charger body, wherein a heating element is arranged in the charger body, and heat dissipation oil is arranged in the heat dissipation oil tank so as to dissipate heat generated by the heating element through the heat dissipation oil. The charger for the electric vehicle can achieve sealing performance and heat dissipation capacity, can achieve water resistance and can dissipate heat better.
Optionally, the charger body includes a heat dissipation plate and a first housing having a first opening on one side, the heat dissipation oil tank includes a second housing having a second opening on one side, one side of the heat dissipation plate is fixedly connected with the first housing to close the first opening, and the other side is fixedly connected with the second housing to close the second opening.
Optionally, the heating element is fixedly arranged at one side of the heat dissipation plate.
Optionally, a heat conducting member is disposed between the heating element and the heat dissipation plate.
Optionally, the heat conducting piece is heat conducting silica gel and/or heat conducting metal.
Optionally, a heat sink is disposed on the other side of the heat dissipation plate, and the heat sink is immersed in the heat dissipation oil.
Optionally, the number of the cooling fins is multiple, and the multiple cooling fins are parallel and arranged at intervals.
Optionally, a pressure relief valve is arranged on the heat dissipation oil tank.
Optionally, a mounting hole is formed in the heat dissipation oil tank, and the pressure release valve is in threaded connection with the mounting hole.
In a second aspect of the embodiment of the present utility model, an electric vehicle is provided, including the above charger for an electric vehicle. The charger for the electric vehicle can achieve sealing performance and heat dissipation capacity, can achieve water resistance and can dissipate heat better.
The beneficial effects of the embodiment of the utility model include:
The charger for the electric vehicle comprises a charger body and a heat dissipation oil tank arranged on one side of the charger body, so that heat generated by the charger body during operation can be conducted to the heat dissipation oil tank, a heating element is arranged in the charger body, the heat generated by the charger body during operation is mainly generated by the heating element during operation, heat dissipation oil is arranged in the heat dissipation oil tank, so that the heat generated by the heating element is dissipated through the heat dissipation oil tank, the heat dissipation is carried out on the charger body through the heat dissipation oil tank, and the service life of electronic devices in the charger body is prolonged. Compared with the sealed shell heat dissipation and fan heat dissipation in the prior art, the charger body and the heat dissipation oil tank of the electric vehicle charger are of the sealed structure, and the heat dissipation oil has good heat dissipation performance, so that the electric vehicle charger can achieve both sealing performance and heat dissipation capability, can achieve water resistance and can achieve better heat dissipation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electric vehicle charger according to an embodiment of the present utility model;
FIG. 2 is a second schematic diagram of a charger for an electric vehicle according to an embodiment of the present utility model;
FIG. 3 is a third schematic diagram of an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a charger for electric vehicles according to an embodiment of the present utility model;
fig. 5 is a schematic diagram of a charger for electric vehicles according to an embodiment of the present utility model.
Icon: 100-charger for electric vehicle; 10-a charger body; 11-a first housing; 12-a heat dissipation plate; 13-heating elements; 20-a heat radiation oil tank; 21-a second housing; 22-heat dissipation oil; 23-cooling fins; 24-pressure release valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "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; can be directly connected or indirectly connected through an intermediate medium, and can be connected between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 5, an embodiment of the application provides a charger 100 for an electric vehicle, which includes a charger body 10 and a heat dissipation oil tank 20 disposed at one side of the charger body 10, wherein a heating element 13 is disposed in the charger body 10, and heat dissipation oil 22 is disposed in the heat dissipation oil tank 20 to dissipate heat generated by the heating element 13 through the heat dissipation oil 22. The charger 100 for the electric vehicle can achieve both sealing performance and heat dissipation capability, and can achieve waterproof performance and better heat dissipation.
As shown in fig. 1, the electric vehicle charger 100 includes a charger body 10, so as to connect an external power source through the charger body 10, thereby charging a storage battery in the electric vehicle and further ensuring normal running of the electric vehicle. On this basis, this electric vehicle charger 100 still includes heat dissipation oil tank 20, and heat dissipation oil tank 20 sets up in one side of charger body 10 to make the heat that charger body 10 during operation produced can conduct to heat dissipation oil tank 20, thereby dispel the heat to charger body 10 through heat dissipation oil tank 20, and then improve the life of the electronic device in the charger body 10.
Specifically, as shown in fig. 4 and 5, the heating element 13 is disposed in the charger body 10, and since the charger 100 for electric vehicles is a component for converting domestic power frequency AC power into DC power to charge the battery of the electric vehicle, and includes AC-DC rectification, DC-AC inversion, and AC-DC rectification, the heating element 13 mainly includes a rectifier tube/bridge, a power switch tube such as a MOS tube, a transformer secondary rectifier tube, a thyristor/relay, and the like.
With continued reference to fig. 4 and 5, the heat dissipation oil tank 20 is configured to provide heat dissipation oil 22 to dissipate heat generated by the heating element 13 through the heat dissipation oil 22, so that the charger body 10 is cooled through the heat dissipation oil tank 20. Regarding the specific choice of the heat dissipation oil 22, those skilled in the art should be able to make reasonable choices and designs according to practical situations, and there are no specific restrictions here, so long as the heat dissipation oil 22 meets the following three requirements: first, the ignition point is high, and the self-extinguishing property is provided; secondly, the insulation property is good, and the water resistance is good; third, the heat dissipation is good.
The heat dissipation oil tank 20 is disposed at one side of the charger body 10, so that heat generated when the charger body 10 is operated can be conducted to the heat dissipation oil tank 20, and heat generated when the heating element 13 disposed in the charger body 10 is operated is dissipated by the heat dissipation oil 22 disposed in the heat dissipation oil tank 20. Regarding the specific position of the radiator tank 20 with respect to the charger body 10, those skilled in the art should be able to make reasonable choices and designs according to the actual situation, and there is no specific limitation. Illustratively, referring to the orientation in the drawings, as shown in fig. 1, a radiator tank 20 is provided on the right side of the charger body 10.
On the one hand, compared with the heat dissipation of a shell and the heat dissipation of a fan in a sealed form in the prior art, the charger 100 for the electric vehicle provided by the application comprises the charger body 10 and the heat dissipation oil tank 20 which are of a sealed structure, so that the aim of water prevention can be fulfilled, and therefore, the charger 100 for the electric vehicle can be normally used in a water spraying or soaking environment, and the problem that the charger cannot be normally used in a wet rainy day and other environments due to the fact that the ventilation holes are formed in the shell of the charger when the fan is adopted for heat dissipation in the prior art is solved.
On the other hand, compared with the heat dissipation of the sealed shell and the heat dissipation of the fan in the prior art, the charger 100 for the electric vehicle provided by the application dissipates the heat generated when the heating element 13 arranged in the charger body 10 works through the heat dissipation oil 22 arranged in the heat dissipation oil tank 20, and the heat dissipation oil 22 has good heat dissipation performance, so that even if the power of the charger is very high, the heat generated when the heating element 13 works can be dissipated through the heat dissipation oil 22, the good heat dissipation effect is achieved, and the problem of relatively poor heat dissipation effect of the charger when the sealed shell is adopted for heat dissipation in the prior art is solved.
In summary, the charger 100 for electric vehicle provided by the present application includes a charger body 10 and a heat dissipation oil tank 20 disposed at one side of the charger body 10, so that heat generated during operation of the charger body 10 can be conducted to the heat dissipation oil tank 20, a heating element 13 is disposed in the charger body 10, heat generated during operation of the charger body 10 is mainly heat generated during operation of the heating element 13, and heat dissipation oil 22 is disposed in the heat dissipation oil tank 20, so that heat generated by the heating element 13 is dissipated through the heat dissipation oil 22, heat dissipation is performed on the charger body 10 through the heat dissipation oil tank 20, and thus service life of electronic devices in the charger body 10 is improved. Compared with the sealed shell heat dissipation and fan heat dissipation in the prior art, the charger body 10 and the heat dissipation oil tank 20 included in the electric vehicle charger 100 provided by the application are of a sealed structure, and the heat dissipation oil 22 has good heat dissipation performance, so that the electric vehicle charger 100 can achieve both sealing performance and heat dissipation capability, not only can realize water resistance, but also can realize better heat dissipation.
In order to facilitate understanding of the actual structures of the charger body 10 and the radiator tank 20, fig. 2 is a schematic diagram of the structure in which the first housing 11 and the second housing 21 are both in perspective.
Specifically, as shown in fig. 2, the charger body 10 includes a heat dissipating plate 12 and a first housing 11 having a first opening on one side, the heat dissipating oil tank 20 includes a second housing 21 having a second opening on one side, one side of the heat dissipating plate 12 is fixedly connected with the first housing 11 to close the first opening, and the other side is fixedly connected with the second housing 21 to close the second opening. The vertical projection of the first opening and the second opening on the heat dissipation plate 12 should fall in the plate surface of the heat dissipation plate 12, so that the heat dissipation plate 12 can completely close the first opening and the second opening.
It should be noted that, as shown in fig. 2, the charger body 10 includes a heat dissipation plate 12 and a first housing 11, the heat dissipation oil tank 20 includes a second housing 21, the first housing 11 and the second housing 21 are disposed opposite to each other, and a first opening on the first housing 11 and a second opening on the second housing 21 are close to each other, the heat dissipation plate 12 is disposed between the first housing 11 and the second housing 21 so as to be fixedly connected with the first housing 11 through one side of the heat dissipation plate 12 to close the first opening, and fixedly connected with the second housing 21 through the other side of the heat dissipation plate 12 to close the second opening, so that the charger body 10 and the heat dissipation oil tank 20 are both in a sealed structure, and heat generated when the charger body 10 operates can be conducted to the heat dissipation oil tank 20 through the heat dissipation plate 12.
It should be further noted that, the first housing 11 and the second housing 21 may be made of plastic or metal, the heat dissipation plate 12 may be made of metal, and the metal may be aluminum, aluminum alloy, copper alloy, etc., so that when the aluminum or aluminum alloy is used, the production cost is low, and when the copper or copper alloy is used, the heat conduction and dissipation effect is good, so that those skilled in the art should be able to reasonably select and design according to practical situations, and no specific limitation is made here.
Alternatively, as shown in fig. 4 and 5, the heating element 13 is fixedly disposed on one side of the heat dissipation plate 12, so that heat generated when the heating element 13 works can be directly transferred to the heat dissipation plate 12, rather than being transferred to the heat dissipation plate 12 through the first housing 11 or the air in the first housing 11, so as to improve the heat transfer effect between the heating element 13 and the heat dissipation plate 12, thereby improving the heat dissipation effect.
Optionally, a heat conducting member (not shown in the figure) is provided between the heat generating element 13 and the heat radiating plate 12. The heat conducting piece is arranged between the heating element 13 and the heat dissipation plate 12, so that the heat conduction effect between the heating element 13 and the heat dissipation plate 12 can be further improved, the heat generated during the operation of the heating element 13 can be better conducted to the heat dissipation plate 12, and then the heat generated during the operation of the heating element 13 can be dissipated through the heat conduction effect between the heat dissipation plate 12 and the heat dissipation oil 22.
Optionally, the heat conducting member is a heat conducting silica gel and/or a heat conducting metal.
The heat conductive silica gel is silica gel prepared by kneading organic silica gel as a main body, and adding a polymer material such as a filler or a heat conductive material. The heat conducting silica gel has excellent cold and hot alternation resistance, ageing resistance and electrical insulation property, and has excellent moisture resistance, shock resistance, corona resistance, electric leakage resistance and chemical medium resistance. Furthermore, the thermally conductive silicone does not swell and has good adhesion to most metallic and non-metallic materials. Thus, when the heating element 13 is a transformer or a transistor, the transformer or the transistor may be adhered to the heat dissipation plate 12 through the thermally conductive silicone.
Alternatively, as shown in fig. 3 to 5, the other side of the heat radiating plate 12 is provided with a heat radiating fin 23, and the heat radiating fin 23 is immersed in the heat radiating oil 22. By arranging the cooling fin 23 on the other side of the cooling plate 12, the cooling fin 23 and the cooling oil 22 can exchange heat, and compared with the cooling plate 12 and the cooling oil 22, the cooling fin 23 can increase the contact area of the cooling plate 12 and the cooling oil 22 for heat exchange, thereby improving the heat conduction effect between the cooling plate 12 and the cooling oil 22.
Optionally, as shown in fig. 3 and fig. 4, the number of the heat dissipation fins 23 is multiple, and the multiple heat dissipation fins 23 are arranged in parallel and at intervals, so that the contact area of heat exchange between the heat dissipation plate 12 and the heat dissipation oil 22 is further increased through the multiple heat dissipation fins 23, and the heat conduction effect between the heat dissipation plate 12 and the heat dissipation oil 22 is further improved, so that the heat generated during the operation of the heating element 13 can be better conducted to the heat dissipation oil 22 through the heat dissipation plate 12 and the multiple heat dissipation fins 23, and then the heat dissipation effect of the heat dissipation oil 22 can be achieved to the heat generated during the operation of the heating element 13.
In order to avoid the risk of excessive pressure inside the radiator tank 20 with temperature rise, as shown in fig. 1, a relief valve 24 is provided on the radiator tank 20. When the internal pressure of the heat dissipation oil tank 20 is too high, the pressure relief valve 24 can be automatically opened to relieve pressure, and after the internal pressure of the heat dissipation oil tank 20 is reduced, the pressure relief valve 24 can be automatically closed to restore sealing, so that the pressure relief effect and the self-restoring function of the pressure relief valve 24 can be realized, meanwhile, the pollution inside the heat dissipation oil tank 20 can be avoided, and the service time of the heat dissipation oil 22 can be prolonged.
Optionally, the radiator tank 20 is provided with a mounting hole (not shown in the figure), and the relief valve 24 is screwed into the mounting hole to facilitate installation and replacement. After the pressure relief valve 24 has been used for a long period of time, the operator can replace the pressure relief valve 24. At this time, the operator can screw the relief valve 24 along the opposite direction of the installation direction, so that the old relief valve 24 can be removed from the radiator tank 20, and then screw the new relief valve 24 into the installation hole along the installation direction, thereby realizing the replacement of the relief valve 24.
The embodiment of the application also provides an electric vehicle, which comprises the charger 100 for the electric vehicle. Since the structure and advantageous effects of the charger 100 for electric vehicles have been described in detail in the foregoing embodiments, the description thereof is omitted herein.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323579383.6U CN221437752U (en) | 2023-12-26 | 2023-12-26 | Charger for electric vehicle and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323579383.6U CN221437752U (en) | 2023-12-26 | 2023-12-26 | Charger for electric vehicle and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221437752U true CN221437752U (en) | 2024-07-30 |
Family
ID=92059662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323579383.6U Active CN221437752U (en) | 2023-12-26 | 2023-12-26 | Charger for electric vehicle and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221437752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118876767A (en) * | 2024-09-30 | 2024-11-01 | 浙江绿力智能科技有限公司 | A waterproof and safe electric vehicle charger |
-
2023
- 2023-12-26 CN CN202323579383.6U patent/CN221437752U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118876767A (en) * | 2024-09-30 | 2024-11-01 | 浙江绿力智能科技有限公司 | A waterproof and safe electric vehicle charger |
| CN118876767B (en) * | 2024-09-30 | 2024-12-06 | 浙江绿力智能科技有限公司 | Waterproof safe electric vehicle charger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211456759U (en) | Wireless charger | |
| CN110050382A (en) | For motor vehicle electronic equipment battery | |
| CN221437752U (en) | Charger for electric vehicle and electric vehicle | |
| CN210805903U (en) | Battery pack | |
| CN209805180U (en) | Energy-saving distribution box | |
| WO2024125349A1 (en) | High-power wireless charger and vehicle-mounted charging structure | |
| CN218783088U (en) | Household Energy Storage System | |
| CN210669574U (en) | Power consumption security protection monitored control system | |
| CN217388260U (en) | Charger convenient to heat dissipation | |
| CN207572501U (en) | Radiating subassembly and battery modules | |
| CN214477651U (en) | A lighter high and low temperature battery protection shell | |
| CN219350374U (en) | Single battery and electric vehicle | |
| CN206820090U (en) | Battery pack with high heat dissipation effect | |
| CN108807768B (en) | Active heat dissipation lithium battery box | |
| CN215773989U (en) | Charging plug | |
| CN215379656U (en) | High-power water-cooling direct-current power supply | |
| CN204928300U (en) | Balanced cooling system of lithium cell | |
| CN214591521U (en) | Mobile phone display components for heat dissipation | |
| CN213973612U (en) | Intelligent vehicle-mounted charger for power battery of high-power new energy automobile | |
| CN209381826U (en) | Charging port with integrated cooling system | |
| CN210576139U (en) | Laminate polymer battery module | |
| CN220934271U (en) | Battery pack and power device | |
| CN221079830U (en) | Heat radiation structure of capacitor | |
| CN219105854U (en) | Transformer with good insulating property for mobile phone charger | |
| CN219352237U (en) | Heat radiation structure of battery charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |