CN219322836U

CN219322836U - Charger assembly for vehicle and vehicle

Info

Publication number: CN219322836U
Application number: CN202223151824.8U
Authority: CN
Inventors: 董禹辰; 唐德钱; 周洪波; 范涛
Original assignee: Deep Blue Automotive Technology Co ltd
Current assignee: Deep Blue Automotive Technology Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-07-07
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a charger component for a vehicle and the vehicle, wherein the charger component comprises a shell, a base body and a heat dissipation piece, wherein a power supply terminal is arranged on the shell, and a containing cavity is formed in the shell; the base body is arranged in the accommodating cavity and is provided with a circuit component which is electrically connected with the power supply terminal; the heat dissipation piece is arranged on the shell and at least partially arranged in the accommodating cavity, an air guide channel which communicates the accommodating cavity with the outside is formed on the shell, and an outlet of the air guide channel is opposite to the heat dissipation piece. According to the charger component designed according to the utility model, the air flow direction generated by the heat dissipation part is controlled by arranging the air guide channel, so that the heat dissipation efficiency of each circuit component in the charger component is controlled, and the heat dissipation area can be increased and the air flow speed can be accelerated by arranging the air guide channel, so that the heat dissipation efficiency is improved.

Description

Charger assembly for vehicle and vehicle

Technical Field

The utility model relates to the field of vehicles, in particular to a charger assembly for a vehicle and the vehicle.

Background

Electronic technology has been rapidly developed and has also placed higher demands on efficient thermal management. Proper and efficient thermal management allows the electronic components to dissipate heat to the surrounding environment without exceeding a maximum allowable temperature. Ambient temperature, circuit board layout, etc. can affect the heat dissipation of the electronic components. The heat dissipation of electronic components is closely related to heat transfer mechanisms such as conduction, convection, and radiation. In all heat dissipation methods, the main purpose is to dissipate heat faster than the generated heat. When the heat generating efficiency of the electronic component is greater than the heat dissipating efficiency, the device or component is more likely to be damaged by self-heating.

The charger is used as vehicle-mounted charging equipment, the heat dissipation efficiency of the charger is very closely related to the working performance, the internal temperature is too high, the charging efficiency of the charger can be affected, and the service life of components can be shortened.

Because the heating efficiency of each circuit component in the charger is different, the requirements of each circuit component on the heat dissipation efficiency are also different. In the prior art, when the air cooling system is structurally designed, different heat dissipation requirements of all electronic components are not considered, so that the air cooling system is simple in structure and low in heat dissipation efficiency.

201220559617.3A vehicle-mounted charger and an air cooling structure thereof are disclosed, wherein the air cooling structure comprises a fan and radiating tooth plates, the radiating tooth plates are distributed in an annular shape by taking the fan as the center, and the radiating tooth plates are communicated with the fan.

201721513677.0A hidden radiator fan structure of a vehicle-mounted charger comprises a radiator body formed by radiating fins and a frameless radiator fan, wherein the radiating fins are radially distributed at the same angle by taking the center of the radiator body as the center of a circle, and the middle part of the radiator body is concavely formed into a circular notch; the frameless cooling fan is fixed in the circular notch.

The air cooling system structure is characterized in that the fan is used as the center, and the radiating fins are arranged around the fan, so that large-area heat dissipation of the charger is realized, the structure is simple, the heat dissipation effect is poor, and the energy consumption is high.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a charger assembly for a vehicle. According to the charger component designed according to the utility model, the air flow direction generated by the heat dissipation part is controlled by arranging the air guide channel, so that the heat dissipation efficiency of each circuit component in the charger component is controlled, and the heat dissipation area can be increased and the air flow speed can be accelerated by arranging the air guide channel, so that the heat dissipation efficiency is improved.

The utility model further provides a vehicle with the charger assembly.

According to the present utility model, a charger assembly for a vehicle includes: the power supply terminal is arranged on the shell, and a containing cavity is formed in the shell; a base body which is arranged in the accommodating cavity and is provided with a circuit component electrically connected with the power supply terminal; the heat dissipation piece is arranged on the shell and at least partially arranged in the accommodating cavity, an air guide channel which communicates the accommodating cavity with the outside is formed on the shell, and an outlet of the air guide channel is opposite to the heat dissipation piece.

According to the charger component, air flow generated by the heat dissipation piece flows in and out through the air guide channel, so that heat is taken away; the air guide channel determines the flow direction of the air flow generated by the heat dissipation part, and the air guide channel is arranged to control the flow condition of the air flow in the accommodating cavity, so that the heat dissipation efficiency of each circuit component in the charger assembly is controlled, and the heat dissipation efficiency of each circuit component is ensured to be larger than the heat generation efficiency. In addition, compared with the open-type heat radiation structure in the prior art, the air guide channel is used as an air flow channel, the heat radiation surface is the inner side surface of the air guide channel, the heat radiation area is large, the cross section area of the air guide channel is small, and the air flow speed is high. Therefore, the heat dissipation effect of the charger component is good.

According to some embodiments of the utility model, the air guiding channels are configured in a plurality and at least part of the air guiding channels extend radially, axially and/or tangentially to the heat sink.

According to some embodiments of the utility model, the housing is formed with a heat sink disposed in the air guide channel in the same direction as the air guide channel.

According to some embodiments of the utility model, a plurality of the heat radiating fins are formed in at least one of the air guiding channels.

According to some embodiments of the utility model, the heat sink comprises: and the centrifugal fan is rotatably arranged on the shell, and the pivot shaft of the centrifugal fan is perpendicular to the base body.

According to some embodiments of the utility model, the housing comprises: the base body shell is arranged on at least part of the periphery of the base body, the centrifugal fan is rotatably arranged on the base body shell, and the air guide channel is arranged on the base body shell; the bottom plate is arranged at the bottom of the base body shell and is used for limiting at least part of the accommodating cavity with the base body shell.

According to some embodiments of the utility model, the base housing has an encapsulation cavity formed therein for receiving at least a portion of the circuit component, the encapsulation cavity having a potting medium formed therein.

According to some embodiments of the utility model, the bottom plate is formed with a heat dissipation through hole opposite to the packaging cavity.

According to some embodiments of the utility model, the charger assembly further comprises: and the heat conduction layer is arranged on the inner surface of at least part of the accommodating cavity and is connected with at least part of the circuit component.

The vehicle according to the present utility model is briefly described below.

A vehicle according to the present utility model includes a charger assembly as described in any one of the embodiments above. Since the vehicle according to the present utility model includes the charger assembly according to any one of the embodiments described above, the vehicle according to the present utility model is excellent in heat dissipation performance, high in charging efficiency, and excellent in durability.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a block diagram of a charger assembly according to an embodiment of the present utility model.

Reference numerals:

a charger assembly 1;

a case 11, a base case 111;

a bottom plate 112, a heat dissipation through hole 1121;

a heat sink 12, an air guide channel 13, and a heat sink 14.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A charger assembly 1 according to an embodiment of the present utility model is described below with reference to fig. 1.

As shown in fig. 1, the charger assembly 1 according to the present utility model is used for a vehicle, the charger assembly 1 includes a housing 11, a base body, and a heat sink 12, a power supply terminal is provided on the housing 11, and a receiving chamber is formed inside the housing 11; the base body is arranged in the accommodating cavity and is provided with a circuit component which is electrically connected with the power supply terminal; the heat dissipation part 12 is arranged on the shell 11 and at least partially arranged in the accommodating cavity, an air guide channel 13 which communicates the accommodating cavity with the outside is formed on the shell 11, and an outlet of the air guide channel 13 is opposite to the heat dissipation part 12.

In the related art, when the air cooling system structure of the charger is designed, an open type uniform heat dissipation mode is generally adopted, so that the heat dissipation effect on each circuit component of the charger is guaranteed, and through arranging the heat dissipation fins around the fan, air flow generated by the fan flows through the surfaces of the heat dissipation fins, heat transferred to the heat dissipation fins by the circuit components is taken away, and the heat dissipation of the charger is realized. However, since the heat generation efficiency of each circuit component in the battery charger is different, the heat dissipation efficiency of each circuit component is also different. The traditional heat dissipation structure is designed without considering the heat dissipation efficiency required by each circuit component, and the airflow direction is not fixed; in addition, the traditional heat dissipation structure is small in heat dissipation area, the heat dissipation assembly is high in energy consumption and poor in heat dissipation effect, the temperature rise of part of circuit components is too high, the charging efficiency of a charger can be affected, and the service life of components can be shortened.

For this reason, the housing cavity of the charger assembly 1 in the present application is provided with an air guide channel 13, and the outlet of the air guide channel 13 is opposite to the heat dissipation member 12, and the air flow generated by the heat dissipation member 12 flows in and out through the air guide channel 13, so as to take away heat. The air guide channel 13 determines the flow direction of the air flow generated by the heat dissipation part 12, and the air guide channel 13 is arranged to control the flow condition of the air flow in the accommodating cavity, so that the heat dissipation efficiency of each circuit component in the charger assembly 1 is controlled. In addition, compared with the open type heat dissipation structure in the prior art, according to the charger assembly 1 of the present utility model, the air guide channel 13 is used as an air flow channel, the heat dissipation surface is the inner side surface of the air guide channel 13, the heat dissipation area is large, the cross-sectional area of the air guide channel 13 is small, and the airflow velocity is fast.

Therefore, the charger assembly 1 in the application realizes the control of the airflow direction on one hand and increases the radiating area and the airflow speed on the other hand by arranging the air guide channel 13, and improves the radiating performance.

According to some embodiments of the present utility model, as shown in fig. 1, the air guiding channels 13 are configured in a plurality and at least part of the air guiding channels 13 extend radially, axially and/or tangentially to the heat sink 12. The air inlet channel comprises an air inlet channel and an air outlet channel, air flow generated by the heat radiating piece 12 flows into the accommodating cavity through the air inlet channel, and then flows out of the accommodating cavity through the air outlet channel, so that heat generated by the circuit component is taken away. In some embodiments, the air guiding channels 13 are a plurality of air guiding channels extending radially, axially and/or tangentially along the heat dissipating member 12, and the air guiding channels 13 include at least one air inlet channel, which may be axially disposed along the heat dissipating member 12, and the air flow generated by the heat dissipating member 12 flows in through the air inlet channels and flows out from a plurality of air outlet channels extending radially and/or tangentially along the heat dissipating member 12. The provision of the plurality of air guide channels 13 increases the heat dissipation area on the one hand, and on the other hand, since the air guide channels 13 are provided in the radial direction and/or the tangential direction of the heat dissipation member 12, the heat dissipation member 12 can exert a heat dissipation effect on circuit components arranged in the radial direction and/or the tangential direction.

According to some embodiments of the present utility model, as shown in fig. 1, a heat sink 14 is formed on the housing 11, and the heat sink 14 is disposed in the air guide channel 13 and has the same extending direction as the air guide channel 13. The heat sink 14 can absorb heat transferred from the circuit component to the case 11, and since the heat sink 14 has a plate shape and a large surface area, the heat dissipation area can be increased, and the heat dissipation effect can be improved. Since the extending direction of the cooling fins 14 is the same as that of the air guiding channel 13, the arrangement of the cooling fins 14 will not affect the direction of the air flow, and the air flow flowing in the air guiding channel 13 will keep flowing along the extending direction of the air guiding channel 13.

According to some embodiments of the present utility model, as shown in fig. 1, a plurality of heat dissipation fins 14 are formed in at least one air guiding channel 13 at intervals. The plurality of radiating fins 14 can further increase the radiating area and improve the radiating effect; the plurality of cooling fins 14 are arranged at intervals, and air flow can flow in the interval between any two cooling fins 14, so that heat on the surfaces of the two cooling fins 14 is taken away, and heat dissipation is accelerated.

According to some embodiments of the present utility model, as shown in fig. 1, the heat sink 12 includes a centrifugal fan rotatably provided on the housing 11, and a pivot axis of the centrifugal fan is perpendicular to the base. Since the air flow generated by the centrifugal fan flows along the peripheral direction, the centrifugal fan dissipates heat of the circuit components arranged in the radial direction and/or the tangential direction by virtue of the air guide channels 13 arranged in the radial direction, the air is introduced through the air guide channels 13 arranged in the axial direction, and the air is discharged through the air guide channels 13 arranged in the radial direction and/or the tangential direction.

According to some embodiments of the present utility model, as shown in fig. 1, the housing 11 includes a base housing 111 and a bottom plate 112, the base housing 111 is disposed at least partially on the periphery of the base, the centrifugal fan is rotatably disposed on the base housing 111, and the base housing 111 is provided with an air guide channel 13; the bottom plate 112 is disposed at the bottom of the base housing 111 and defines at least a portion of a receiving chamber with the base housing 111. The base body shell 111 is arranged on at least part of the periphery of the base body, so that the base body shell 111 can absorb heat emitted by circuit components arranged on the base body, at least part of accommodating cavities defined by the base plate 112 and the base body shell 111 accommodate the centrifugal fan, the air guide channel 13 communicates the accommodating cavities defined by the base plate 112 and the base body shell 111 with the outside, and air flow generated by the centrifugal fan flows on the base body shell 111 through the air guide channel 13, so that heat is taken away, and heat dissipation is achieved for the circuit components arranged on the base body. In addition, the base housing 111 has a protective and dustproof effect on the base.

According to some embodiments of the present utility model, the base housing 111 has an encapsulation cavity formed therein for receiving at least a portion of the circuit components, and a potting medium is formed within the encapsulation cavity. The encapsulating medium has the effects of heat conduction, insulation and adhesion, and at least part of circuit components are encapsulated in the encapsulation cavity through the encapsulating medium, so that heat emitted by the circuit components in the encapsulation cavity is transferred to the base shell 111 through the encapsulating medium, and the air flow generated by the heat radiating piece 12 is facilitated to pass through the surface of the base shell 111 so as to take away the heat; in addition, the side surface of the base housing 111 forming the package cavity is in direct contact with air, so that the heat dissipation area is large, and the heat dissipation efficiency of the circuit component in the package cavity is improved. In some embodiments, the potting medium is a potting adhesive and the circuit component in the potting cavity is a capacitor or inductor with high heating efficiency in the charger assembly 1.

According to some embodiments of the present utility model, an air guide channel 13 is formed between at least part of the substrate shells 111 forming the packaging cavity, so that air flow passes through at least part of the surfaces of the substrate shells 111 forming the packaging cavity, and heat dissipation efficiency of circuit components in the packaging cavities at two sides of the substrate shells 111 is improved, thereby accelerating heat dissipation and improving heat dissipation effect.

According to some embodiments of the present utility model, as shown in fig. 1, a heat dissipation through hole 1121 is formed on the bottom plate 112 opposite to the package cavity. The heat emitted by the circuit components in the packaging cavity can cause the temperature of the air between the bottom plate 112 and the packaging cavity to rise, and the high-temperature air between the bottom plate 112 and the packaging cavity is in heat exchange with the outside through the heat dissipation through holes 1121, so that at least part of the heat emitted by the circuit components in the packaging cavity is emitted to the outside through the heat dissipation through holes 1121, and the heat dissipation effect is improved by arranging the heat dissipation through holes 1121.

According to some embodiments of the present utility model, the charger assembly 1 further comprises a heat conductive layer disposed on an inner surface of at least a portion of the housing cavity, the heat conductive layer being connected to at least a portion of the circuit component. Because the surface of the circuit component has roughness, when the circuit component is contacted with the shell 11, some air gaps are mixed between the circuit component and the shell 11, and because the heat conductivity coefficient of air is very small, the contact thermal resistance between the circuit component and the shell 11 is large, and the heat conduction layer is arranged on the inner surface of the accommodating cavity and connected with the circuit component, so that the contact thermal resistance between the shell 11 and the circuit component is reduced, and the heat dissipation performance of the charger assembly 1 is improved. In some embodiments, the thermally conductive layer is a thermally conductive silicone grease or a thermally conductive insulating gel.

The vehicle according to the present utility model is briefly described below.

The vehicle according to the utility model comprises a charger assembly 1 according to any of the embodiments described above. Since the vehicle according to the present utility model includes the charger assembly 1 in any one of the embodiments described above, the vehicle according to the present utility model is excellent in heat dissipation performance, high in charging efficiency, and excellent in durability.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the present utility model, "plurality" means two or more.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A charger assembly for a vehicle, comprising:

the power supply terminal is arranged on the shell, and a containing cavity is formed in the shell;

a base body which is arranged in the accommodating cavity and is provided with a circuit component electrically connected with the power supply terminal;

the heat dissipation piece is arranged on the shell and at least partially arranged in the accommodating cavity, an air guide channel which communicates the accommodating cavity with the outside is formed on the shell, and an outlet of the air guide channel is opposite to the heat dissipation piece.

2. The charger assembly of claim 1 wherein said air guide channel is configured as a plurality and at least a portion of said air guide channels extend radially, axially and/or tangentially of said heat sink.

3. The battery charger assembly for a vehicle according to claim 2, wherein a heat sink is formed on the housing, the heat sink being disposed in the air guide passage in the same direction as the extension direction of the air guide passage.

4. A charger assembly for a vehicle as defined in claim 3, wherein a plurality of said heat sinks are formed in at least one of said air guide channels in a spaced apart arrangement.

5. The charger assembly for a vehicle of claim 3 wherein said heat sink comprises: and the centrifugal fan is rotatably arranged on the shell, and the pivot shaft of the centrifugal fan is perpendicular to the base body.

6. The charger assembly for a vehicle of claim 5 wherein said housing comprises:

the base body shell is arranged on at least part of the periphery of the base body, the centrifugal fan is rotatably arranged on the base body shell, and the air guide channel is arranged on the base body shell;

the bottom plate is arranged at the bottom of the base body shell and is used for limiting at least part of the accommodating cavity with the base body shell.

7. The charger assembly of claim 6 wherein said base housing has an encapsulation cavity formed therein for receiving at least a portion of said circuit components, said encapsulation cavity having a potting medium formed therein.

8. The charger assembly for a vehicle of claim 7 wherein said base plate has a heat dissipating through hole formed therein in facing relation to said package cavity.

9. The charger assembly for a vehicle of claim 1, further comprising: and the heat conduction layer is arranged on the inner surface of at least part of the accommodating cavity and is connected with at least part of the circuit component.

10. A vehicle comprising a charger assembly according to any one of claims 1-9.