CN112702885A - Heat abstractor and machine that charges - Google Patents
Heat abstractor and machine that charges Download PDFInfo
- Publication number
- CN112702885A CN112702885A CN201911008331.9A CN201911008331A CN112702885A CN 112702885 A CN112702885 A CN 112702885A CN 201911008331 A CN201911008331 A CN 201911008331A CN 112702885 A CN112702885 A CN 112702885A
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- Prior art keywords
- heat dissipation
- fan
- air
- heat
- air outlet
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a heat dissipation device and a charger, wherein the heat dissipation device is provided with a ventilating duct and a fan, the ventilating duct is provided with 2 air inlets, an air outlet is arranged between the 2 air inlets, and the fan is connected with the air outlet of the ventilating duct; the heat dissipation device comprises an air inlet, an air outlet and a plurality of heat dissipation pieces, wherein the air inlet is connected with the air outlet through the air inlet, the air outlet is connected with the air outlet through the air outlet, and the heat dissipation efficiency of the heat dissipation pieces to be dissipated is improved.
Description
Technical Field
The invention relates to a mechanical technology, in particular to a heat dissipation device and a charger.
Background
The charger is used for all high-speed rails, motor cars, vehicles and related facilities for supplying power to the storage battery, and is important power supply equipment. The charger usually comprises an input circuit, a full-bridge inverter circuit, an output circuit, a control circuit and other charging circuits, and relates to a plurality of devices such as an input filter, a contactor, a rectifier bridge module, a discharge resistor, a support capacitor, an IGBT module, a high-frequency transformer, an electric reactor, an anti-reverse diode, a current sensor, a voltage sensor, a driving board, a wiring terminal and a control unit.
In order to solve the problem of heat dissipation in the prior art, a radiator is installed on the back surface of a charger shell, and the heat dissipation is performed in a natural cooling mode.
However, the heat dissipation efficiency of the charger in the prior art is low.
Disclosure of Invention
The invention provides a heat dissipation device and a charger, which can improve the heat dissipation efficiency of the heat dissipation device in a forced air cooling mode.
In a first aspect of embodiments of the present invention, a heat dissipation device is provided, including: a ventilation duct and a fan;
the ventilation pipeline is provided with 2 air inlets, an air outlet is arranged between the 2 air inlets, and the fan is connected with the air outlet of the ventilation pipeline;
and a mounting opening used for being connected with a heat dissipation opening of the heat dissipation piece to be dissipated is respectively arranged between each air inlet and each air outlet.
Optionally, in a possible implementation manner of the first aspect, the air outlet is located at the symmetrical center of the 2 air inlets in the ventilation duct.
Optionally, in a possible implementation manner of the first aspect, the mounting opening is provided with a sealing member for connecting with the heat dissipation opening of the member to be heat-dissipated.
Optionally, in one possible implementation of the first aspect, the seal comprises a sealing strip;
the sealing strip is hollow inside.
Optionally, in a possible implementation manner of the first aspect, the fan includes a centrifugal fan and a fan wind guide ring;
the fan wind-guiding ring is positioned in the ventilation cavity of the centrifugal fan, and a gap is arranged between the fan wind-guiding ring and the inner wall of the ventilation cavity.
Optionally, in a possible implementation manner of the first aspect, the apparatus further includes a box;
the ventilating duct and the fan are arranged in the box body;
the box body is provided with a slide rail for the heat-radiating piece to move.
Optionally, in a possible implementation manner of the first aspect, an air inlet filter screen plate is disposed at the air inlet.
Optionally, in a possible implementation manner of the first aspect, an air outlet filter screen plate is disposed at the air outlet.
In a second aspect of the present invention, a charger is provided, which includes a charging power module and the above heat dissipation device;
the mounting port is connected with the heat dissipation port of the charging power module, so that the ventilation pipeline is communicated with the heat dissipation port.
Optionally, in a possible implementation manner of the second aspect, there are 2 charging power modules, and 2 charging power modules are located on a side of the box body.
The utility model provides a heat abstractor and machine that charges is provided with air pipe and fan, wherein air pipe is provided with 2 air intakes, and is provided with the air outlet between 2 air intakes, the fan with air pipe's air outlet is connected, can understand, under the effect of fan, in cooling air enters into air pipe from air pipe's air intake, then via the air outlet discharge, because every the air intake with between the air outlet, be equipped with respectively and be used for with treat the thermovent that the radiating piece is connected the installing port, treat that the cooling air of radiating piece can enter into air pipe via the installing port promptly, then is taken away by the cooling air, is discharged by the air outlet. The scheme can cool the to-be-cooled part by forced air, and improves the heat dissipation efficiency of the heat dissipation device.
Drawings
Fig. 1 is a schematic structural diagram of a heat dissipation device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a fan of a heat dissipation device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a slide rail of a heat dissipation device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a charger according to an embodiment of the present invention.
Reference numerals
1-ventilating duct;
11-an air inlet;
111-air inlet filter screen;
12-an air outlet;
121-air outlet filter screen;
2-a seal;
3-a heat dissipation port;
4-mounting the opening;
5, a fan;
51-a fan wind guide ring;
6, a box body;
61-a charging power module;
62-a slide rail;
63-a separator;
7-waiting for the heat sink.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It should be understood that in the present disclosure, "including" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "include A, B and C" means that all three of A, B, C include, "include A, B or C" means include one of A, B, C, "include A, B and/or C" means include 1 or 2 or 3 of A, B, C.
It should be understood that in the present invention, "B corresponding to a", "a corresponds to B", or "B corresponds to a" means that B has a corresponding relationship with the shape or function of a, and B can be determined from a. Determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
The charger is used for all high-speed rails, motor cars, vehicles and related facilities for supplying power to the storage battery, and is important power supply equipment. The charger usually comprises an input circuit, a full-bridge inverter circuit, an output circuit, a control circuit and other charging circuits, and relates to a plurality of devices such as an input filter, a contactor, a rectifier bridge module, a discharge resistor, a support capacitor, an IGBT module, a high-frequency transformer, an electric reactor, an anti-reverse diode, a current sensor, a voltage sensor, a driving board, a wiring terminal and a control unit. In order to solve the problem of heat dissipation in the prior art, a radiator is installed on the back surface of a charger shell, and the heat dissipation is performed in a natural cooling mode.
Therefore, in the existing charger structure, a plurality of devices are arranged in the whole shell, a radiator is arranged on the back surface of the shell, and natural cooling is adopted, so that the radiator is large, the size and the weight of the charger are also large, when the size of the radiator is limited, the radiating efficiency is low, the total output power of the charger is limited, and generally can not exceed 25 kW.
Therefore, the heat dissipation efficiency of the charger in the prior art is low.
In order to solve the technical problem, the scheme provides the heat dissipation device and the charger, and the heat dissipation efficiency is improved.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a heat dissipation device according to an embodiment of the present invention, the heat dissipation device includes: the ventilation duct 1 and the fan 5 are specifically as follows:
the ventilation duct 1 is provided with 2 air inlets 11, and an air outlet 12 is arranged between the 2 air inlets 11, it can be understood that cooling air can enter the ventilation duct 1 through the air inlets 11, and then the cooling air is discharged out of the ventilation duct 1 through the air outlet 12, so as to form a flow channel of the cooling air.
In some embodiments, the air inlet 11 may be located at both ends of the ventilation duct 1, and the air outlet 12 may be located in the middle of the ventilation duct 1. Preferably, the air outlet 12 may be located at the symmetrical center of the ventilation duct 1 of the 2 air inlets 11, i.e. the distance between the air outlet 12 and the 2 air inlets 11 is equal.
It is understood that the ventilation duct 1 may be made of a metal material, or may be made of a plastic material, for example, an aluminum alloy material, or a carbon steel material, and the material of the ventilation duct 1 is not limited in the embodiment of the present invention.
In some embodiments, between each of the air inlets 11 and the air outlet 12, there is a mounting port 4 for connecting with the heat dissipation port 3 of the heat dissipation member 7. It is understood that the mounting port 4 is provided on the ventilation duct 1, and may communicate with the cooling air flow passage of the ventilation duct 1. In addition, the mounting port 4 is in butt joint with the heat dissipation port 3 of the to-be-dissipated part 7, heat of the to-be-dissipated part 7 is discharged through the heat dissipation port 3, enters the cooling air flow channel formed by the ventilation pipeline 1 through the mounting port 4, is blown away by cooling air in the ventilation pipeline 1, and is discharged from the air outlet 12, and heat dissipation of the to-be-dissipated part 7 is achieved.
It should be noted that, the mounting openings 4 are provided between each of the air inlets 11 and the air outlets 12, and since the cooling air enters the ventilation duct 1 from the air inlets 11 and is discharged from the air outlets 12, that is, the flowing process of the cooling air in the ventilation duct 1 is from each of the air inlets 11 to each of the air outlets 12, the mounting openings 4 are provided between each of the air inlets 11 and the air outlets 12, so that the heat in the heat dissipation openings 3 can be rapidly discharged through the air outlets 12, and the heat dissipation efficiency is improved.
In practical application, the member to be heat-dissipated 7 may be any article to be heat-dissipated, such as a charger, or a generator, and all that needs to dissipate heat may be used as the member to be heat-dissipated 7.
In some embodiments, the fan 5 is connected to the air outlet 12 of the ventilation duct 1 to provide power for the circulation of the cooling air, and it can be understood that the cooling air is made to flow in the ventilation duct 1 under the action of the fan 5.
The fan 5 may be a centrifugal fan 5, preferably a volute-free centrifugal fan 5, the fan 5 includes a centrifugal fan 5 and a fan air guide ring 51, and the fan air guide ring 51 is located in a ventilation cavity of the centrifugal fan 5 and has a gap with an inner wall of the ventilation cavity.
The fan 5 is provided with a fan air guide ring 51, and a gap is formed between the fan air guide ring 51 and the inner wall of the ventilation cavity, so that air flow and air flow noise are facilitated to be reduced.
The heat dissipation device provided by the above embodiment is provided with a ventilation duct 1 and a fan 5, wherein the ventilation duct 1 is provided with 2 air inlets 11, an air outlet 12 is arranged between the 2 air inlets 11, and the fan 5 is connected with the air outlet 12 of the ventilation duct 1.
It can be understood that under the effect of the fan 5, the cooling air enters the ventilation duct 1 from the air inlet 11 of the ventilation duct 1, and then is discharged through the air outlet 12, because of each of the air inlet 11 and between the air outlets 12, the mounting ports 4 used for being connected with the heat dissipation ports 3 of the heat dissipation pieces 7 to be treated are respectively arranged, namely, the heat dissipation air of the heat dissipation pieces 7 to be treated enters the ventilation duct 1 through the mounting ports 4, is taken away by the cooling air, and is discharged through the air outlet 12.
The scheme can cool the heat-radiating part 7 to be cooled by forced air, and improves the heat-radiating efficiency of the heat-radiating device.
Because the installing port 4 is connected with the heat dissipation port 3 of treating the heat dissipation piece 7, if the connecting position of the installing port 4 and the heat dissipation port 3 of treating the heat dissipation piece 7 is not sealed, the heat of treating the heat dissipation piece 7 is discharged from the installing port 4 and the heat dissipation port 3, the heat cannot enter the ventilation pipeline 1 to a large extent, and the heat dissipation efficiency is greatly reduced.
In order to solve the technical problem, on the basis of the above embodiment, the sealing member 2 for connecting with the heat dissipation port 3 of the to-be-dissipated member 7 is arranged at the mounting port 4, and the sealing of the connection position of the mounting port 4 and the heat dissipation port 3 of the to-be-dissipated member 7 is realized, specifically as follows:
one end of the sealing element 2 is connected to the mounting opening 4, and the other end of the sealing element is connected to the heat dissipation element 7, so that no gap exists between the mounting opening 4 and the heat dissipation opening 3 of the heat dissipation element 7, heat cannot leak out, and only can enter the ventilation pipeline 1, and the heat dissipation efficiency is ensured.
In some embodiments, the connection between the sealing member 2 and the mounting opening 4 and the heat dissipation opening 3 may be an adhesive, for example, an adhesive, specifically, a silicone adhesive. In other embodiments, the connection between the sealing member 2 and the mounting opening 4 and the heat dissipating opening 3 may be a fixed connection, for example, a screw connection.
Specifically, threaded holes may be formed in the mounting port 4, the heat dissipation port 3, and the sealing member 2, and the sampling screws pass through the threaded holes to realize the fixed connection among the sealing member 2, the mounting port 4, and the heat dissipation port 3, where the number of the screws is not limited, for example, at least 2 screws may be used for connection, so as to improve the connection stability. The present invention is not limited to the connection method.
In some embodiments, the sealing element 2 may be a sealing strip, which may be made of silicone or metal.
For example, the sealing strip made of the silicone material can be solid or hollow, preferably, the hollow sealing strip is hollow, the hollow structure is favorable for compression deformation of the sealing strip, and the sealing strip has certain elasticity, so that the sealing strip is convenient to mount, and the sealing effect can be improved.
For another example, the metal sealing element 2 may be made of a flexible metal material, for example, a deformable aluminum alloy, and in some embodiments, the metal sealing element 2 may be a bellows type, which facilitates compression deformation of the sealing strip, on one hand, installation is facilitated, and on the other hand, the sealing effect may be improved.
In the above embodiment, the sealing member 2 for connecting with the heat dissipation opening 3 of the to-be-dissipated part 7 is arranged at the mounting opening 4, so that the sealing of the connection position of the mounting opening 4 and the heat dissipation opening 3 of the to-be-dissipated part 7 is realized, heat can completely enter the ventilation pipeline 1, and the heat dissipation efficiency is ensured.
In order to provide a storage space for the ventilation duct 1 and the fan 5, on the basis of the above embodiment, the ventilation duct 1 and the fan 5 further include a box 6, and the ventilation duct 1 and the fan 5 are disposed in the box 6, specifically as follows:
in some embodiments, both the air inlet 11 and the air outlet 12 of the ventilation duct 1 may extend to the outside of the box 6, so that both the air inlet 11 and the air outlet 12 of the ventilation duct 1 communicate with the outside, and the cooling air may enter the ventilation duct 1 from the outside and then be discharged out of the ventilation duct 1 through the air outlet 12, so that the heat does not enter the inside of the box 6.
As shown in fig. 2, fig. 2 is a schematic structural diagram of a fan of a heat dissipation device according to an embodiment of the present invention, in practical application, a partition 63 may be disposed inside a box 6 to divide the box 6 into left, middle and right 3 compartments, where the left compartment and the right compartment may be placed with heat dissipation members, and the middle compartment may be placed with the fan 5. The fan 5 can be hoisted on the top end of the box body 6, for example, a hoisting support can be fixed on the top end of the box body 6, and the fan 5 is installed on the hoisting support.
As shown in fig. 3, fig. 3 is a schematic structural diagram of a slide rail of a heat dissipation apparatus according to an embodiment of the present invention, in some embodiments, a slide rail 62 for moving the to-be-cooled member 7 may be disposed at a bottom of the box 6, and the to-be-cooled member 7 may move along the slide rail 62.
For example, the member to be heat-dissipated 7 can be pulled out from the box body 6, so that the inspection of the member to be heat-dissipated 7 can be conveniently realized. In other embodiments, the sliding rails 62 may be disposed in the left and right compartments, which may better achieve the cooperation with the member to be heat-dissipated 7.
It will be appreciated that the side walls of the box 6 may be removable to facilitate movement of the heat sink 7 out of the box 6 along the slide rails 62.
For example, the side wall of the box body 6 may be hinged to the box body 6, and when the heat sink 7 needs to be repaired, the side wall of the box body 6 may be lifted, and then the heat sink 7 may be moved out of the box body 6 along the slide rail 62.
In practical application, the slideway is of a stainless steel plate structure and is riveted to the bottom of the box body 6 through blind rivets, the number of the blind rivets is not limited, and the operation is convenient.
Above-mentioned embodiment places air pipe 1 and fan 5 in box 6, provides storage space for air pipe 1 and fan 5, and is provided with the slide, and the operating personnel of being convenient for treats heat sink 7 and realizes overhauing.
Since the air outside the box 6 has impurities such as dust and debris, if no measures are taken, the impurities enter the ventilation duct 1 from the air inlet 11 and then enter the fan 5, so that the ventilation duct 1 and the fan 5 are blocked and damaged.
In order to solve the above technical problem, on the basis of the above embodiment, the air inlet 11 may be provided with a filter screen plate of the air inlet 11, which is specifically as follows:
the arranged air inlet 11 is provided with a filter screen plate which can intercept sundries outside the ventilation pipeline 1 and prevent the sundries from entering the ventilation pipeline 1.
In practical application, the air inlet 11 may be fixedly connected to the ventilation duct 1, or detachably connected to the ventilation duct 1.
Wherein, the fixed connection can adopt the welded mode to be connected with air pipe 1. The detachable connection can be achieved by adopting a bonding mode or a screw connection, for example, threaded holes can be formed in the ventilation pipeline 1 and the air inlet 11 filter screen plate, and then the screw penetrates through the threaded holes, so that the detachable connection between the air inlet 11 filter screen plate and the ventilation pipeline 1 is achieved.
In some embodiments, the air outlet 12 may be provided with a filter screen at the air outlet 12, so as to prevent external impurities from entering the box 6 through the air outlet 12.
According to the embodiment, the air inlet 11 and the air outlet 12 are arranged on the filter screen plate, so that external impurities can be prevented from entering the box body 6, the ventilation pipeline 1 and the fan 5, normal operation of the device is ensured, and the stability of the device is improved.
As shown in fig. 4, fig. 4 is an overall schematic diagram of a charger according to an embodiment of the present invention, including: including charging power module 61 to and the heat abstractor of the above-mentioned embodiment, specifically as follows:
the charging power module 61 is a main component of the charger, wherein the mounting port 4 is connected with the heat dissipation port 3 of the charging power module 61, so that the ventilation duct 1 is communicated with the heat dissipation port 3, that is, the heat of the charging power module 61 is discharged through the heat dissipation port 3, enters the ventilation duct 1 through the mounting port 4, is taken away by cooling air, and realizes heat dissipation of the charging power module 61.
In some embodiments, the charging power module 61 may be provided in 2, respectively in the left and right compartments in the above embodiments.
In other embodiments, the charging power module 61 may be slidably connected to the sliding rail 62, and when the operator needs to repair the charging power module 61, the charging power module 61 may be moved out of the box 6 along the sliding rail 62.
In practical application, the box body 6 can be made of aluminum alloy, so that the overall weight of the charger is reduced, the weight power density is improved, and the weight power density can reach 0.1052 kW/kg.
The forced air cooling mode of the invention is beneficial to improving the output power and the structure compactness of the charger, the rated output power can reach 60kW, and the volume power density can reach 35.4777kW/m3。
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "top", "bottom", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", and the like, are used to indicate an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the position or element referred to must have a particular orientation, be of particular construction and operation, and thus, are not to be construed as limiting the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.
Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same.
While the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A heat dissipating device, comprising: a ventilation duct and a fan;
the ventilation pipeline is provided with 2 air inlets, an air outlet is arranged between the 2 air inlets, and the fan is connected with the air outlet of the ventilation pipeline;
and a mounting opening used for being connected with a heat dissipation opening of the heat dissipation piece to be dissipated is respectively arranged between each air inlet and each air outlet.
2. The heat dissipation device of claim 1, wherein the air outlet is located at the symmetrical center of the 2 air inlets in the ventilation duct.
3. The heat dissipating device according to claim 1 or 2, wherein the mounting opening is provided with a seal for connection with the heat dissipating opening of the member to be dissipated.
4. The heat dissipating device of claim 3, wherein said seal comprises a seal bar;
the sealing strip is hollow inside.
5. The heat dissipating device of claim 1, wherein the fan comprises a centrifugal fan and a fan wind guide ring;
the fan wind-guiding ring is positioned in the ventilation cavity of the centrifugal fan, and a gap is arranged between the fan wind-guiding ring and the inner wall of the ventilation cavity.
6. The heat dissipating device of claim 1, further comprising a case;
the ventilating duct and the fan are arranged in the box body;
the box body is provided with a slide rail for the heat-radiating piece to move.
7. The heat dissipating device of claim 1, wherein an air inlet filter screen is disposed at the air inlet.
8. The heat dissipating device of claim 1 or 7, wherein an outlet filter screen is disposed at the outlet.
9. A charger characterized by comprising a charging power module and a heat dissipation device according to any one of claims 1 to 8;
the mounting port is connected with the heat dissipation port of the charging power module, so that the ventilation pipeline is communicated with the heat dissipation port.
10. The charger according to claim 9, characterized in that there are 2 said charging power modules, and 2 said charging power modules are located at the side of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911008331.9A CN112702885B (en) | 2019-10-22 | 2019-10-22 | Heat dissipation device and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911008331.9A CN112702885B (en) | 2019-10-22 | 2019-10-22 | Heat dissipation device and charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112702885A true CN112702885A (en) | 2021-04-23 |
| CN112702885B CN112702885B (en) | 2024-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911008331.9A Active CN112702885B (en) | 2019-10-22 | 2019-10-22 | Heat dissipation device and charger |
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| CN (1) | CN112702885B (en) |
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| CN113659849A (en) * | 2021-08-18 | 2021-11-16 | 中车青岛四方车辆研究所有限公司 | Auxiliary converter device and railway vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113659849A (en) * | 2021-08-18 | 2021-11-16 | 中车青岛四方车辆研究所有限公司 | Auxiliary converter device and railway vehicle |
| CN113659849B (en) * | 2021-08-18 | 2023-09-22 | 中车青岛四方车辆研究所有限公司 | Auxiliary converter and railway vehicle |
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| Publication number | Publication date |
|---|---|
| CN112702885B (en) | 2024-12-10 |
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