Vehicle-mounted charger with novel ventilation structure

Abstract

The utility model relates to charging equipment, and discloses a vehicle-mounted charger with a novel ventilation structure, which comprises a casing (1), a mounting groove (11) arranged in the casing, a plurality of radiating fins (12) arranged at the outer end of the casing (1), a positioning groove (13) arranged at the bottom of the mounting groove (11), a ventilation groove (14) arranged at the bottom of the positioning groove (13), and ventilation holes (15) arranged on the side wall of the ventilation groove (14) and communicated with the outside. The ventilation holes (15) are formed in the side wall of the bottom end of the cooling fin (12), and a ventilation membrane (2) is installed in the positioning groove (13) and covers the ventilation groove (14). The breathable membrane is installed in the positioning groove in a hidden mode, the space in the installation groove is not occupied, and installation of other components is not affected; a complicated structure does not need to be processed to be matched with the ventilation structure; a sealing ring does not need to be independently arranged for sealing; due to the fact that certain airflow is formed in the heating process, the heat dissipation capacity of the cooling fins is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging equipment especially with novel ventilative structure's vehicle-mounted charger. BACKGROUND

[0002] The core of the air valve is EPTFE film, in order to protect EPTFE film, will use a plastic shell to protect, its structure includes two plastic pieces, an EPTFE film, an O ring, and for the mounting structure proposes higher precision requirement to guarantee the sealing of O ring and shell, and need to set up the mounting structure that cooperates with the shell, this structure needs certain space, and the sealing structure of its O ring is a leakage risk itself. The mounting structure that cooperates with it is also higher in cost.

[0003] For example, the announcement number CN207884332U discloses a kind of power supply charger module, to further improve the dustproof waterproof performance of power supply charger module, first mounting plate is equipped with the through hole for installing one-way air valve and forms first mounting hole, the side surface of one-way air valve and the inner wall of first mounting hole are equipped with two sealing washers that are sleeved on the side surface of one-way air valve. To make one-way air valve easy to install and reliably fixed on upper shell, one end of one-way air valve is equipped with the four buckles that are arranged in circumference, buckle passes through first mounting hole and enters into accommodating space, and the shape of first mounting hole is circular. Complex structure, sealing washer exists leakage risk. UTILITY MODEL CONTENTS

[0004] The utility model provides vehicle-mounted charger with novel ventilative structure in view of the shortcoming in the prior art.

[0005] To solve the above technical problem, the utility model solves by the following technical scheme:

[0006] Vehicle-mounted charger with novel ventilative structure, including casing, be equipped with mounting groove in casing, be equipped with a plurality of number of fin in the outer end of casing, be equipped with positioning groove in the bottom of mounting groove, be equipped with air passage in the bottom of positioning groove, be equipped with the air hole that communicates with outside on the lateral wall of air passage, air hole is equipped on the lateral wall of the bottom end of fin, be equipped with air film piece in positioning groove, air film piece covers on air passage. This ventilative structure is simple, this structure cancels traditional air valve, instead, ventilative structure is integrated on casing, does not occupy the space in mounting groove, does not affect the installation of other components;Without processing complicated structure to cooperate with ventilative structure;Without separately setting up sealing ring to seal;Because it forms certain air current in the process of heating, in the current design, air hole is set in bottom and has certain benefit to overall heat dissipation, can reduce shell about 1.5 degrees.

[0007] Preferably, the side wall of the fin where the vent groove is formed has a protrusion, and the vent hole is formed in the protrusion. The protrusion increases the wall thickness of the fin, facilitates the machining of the vent groove, and ensures the strength of the fin.

[0008] Preferably, the vent groove is a blind hole, and two vent holes are formed in the side wall of the bottom of the vent groove. The two vent holes are uniformly distributed on the vent groove and symmetrically arranged on the two sides of the fin. The bottom of the vent groove is not straight through, so as to avoid foreign objects from directly puncturing the vent film. The vent holes on the two sides of the fin can drive the air flow between the adjacent fins, thereby improving the heat dissipation effect of the fin.

[0009] Preferably, the bottom of the positioning groove is provided with two vent grooves, and the two vent grooves increase the air permeability of the air permeation structure.

[0010] Preferably, the vent film is an EPTFE film, the upper end surface of the vent film is lower than the slot of the positioning groove, and the vent film is hidden in the bottom of the mounting groove, thereby effectively avoiding interference with other components and improving the integrity of the vent film.

[0011] Preferably, the positioning groove is covered with a protective cover, and the side wall of the protective cover is provided with a plurality of air passages that are in communication with the inside of the positioning groove. The protective cover is used to protect the vent film, and prevents the vent film from being punctured by other components during installation.

[0012] Preferably, the lower end surface of the protective cover is provided with a plurality of open grooves that penetrate the side wall of the protective cover and form the air passages.

[0013] Preferably, the side wall of the positioning groove is provided with a limiting groove, and the lower end of the protective cover is provided with a positioning piece. When the protective cover is installed in the positioning groove, the positioning piece is engaged in the limiting groove. The protective cover can be tightly fastened to the shell, and the protective cover cannot be easily separated from the shell.

[0014] The above technical scheme is adopted, and the utility model has remarkable technical effects.

[0015] (1) The air permeation structure is simple, the traditional air permeation valve is cancelled, the air permeation structure is integrated on the shell, the space in the mounting groove is not occupied, and the installation of other components is not affected.

[0016] (2) A complex structure does not need to be machined to cooperate with the air permeation structure.

[0017] (3) A sealing ring does not need to be separately arranged for sealing, the reliability is better, and the cost is low.

[0018] (4) The vent film is hidden and installed at the bottom of the mounting groove, and the protection level of the film is higher.

[0019] (5) The air permeation structure of the structure can greatly improve the air permeability.

[0020] (6) Since it forms a certain air flow in the process of heat, in the current design of the vent hole is set in the bottom of the overall heat dissipation has certain benefit, can reduce the shell about 1.5 degrees. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the appearance structure schematic diagram of the vehicle-mounted charger.

[0022] Figure 2 is Figure 1 the partial enlarged view of A in the figure.

[0023] Figure 3 is the structure schematic diagram of the bottom of the shell of the vehicle-mounted charger after opening.

[0024] Figure 4 is Figure 3 the structure schematic diagram of the vehicle-mounted charger after cutting along the air slot axial direction.

[0025] Figure 5 is Figure 4 the partial enlarged view of B in the figure.

[0026] Figure 6 is the sectional structure schematic diagram of the protective cover installed on the air slot.

[0027] Figure 7 is Figure 6 the partial enlarged view of C in the figure.

[0028] The part names referred to by the respective numbers in the above drawings are as follows:

[0029] 1 - shell, 11 - mounting groove, 12 - heat dissipation fin, 13 - positioning groove, 14 - air slot, 15 - air hole, 16 - protruding block, 17 - limiting groove

[0030] 2 - air film

[0031] 3 - protective cover, 31 - air passage, 32 - positioning sheet DETAILED DESCRIPTION

[0032] The utility model will be described in further detail below in combination with the drawings. Figures 1-7 The utility model will be described in further detail below in combination with the drawings.

[0033] Example 1

[0034] The vehicle charger with new ventilation structure, comprising a casing 1, the casing 1 is internally provided with a mounting groove 11, and the outer end of the casing 1 is provided with a plurality of cooling fins 12; when the vehicle charger is working, a large amount of heat is generated by the transformer, and the cooling fins 12 are used for transferring heat and dissipating the temperature in the casing 1 in time, so that the casing 1 is ensured to be within the set temperature value; the bottom of the mounting groove 11 is provided with a positioning groove 13, the positioning groove 13 is a circular slot, the bottom of the positioning groove 13 is provided with a ventilation groove 14, the ventilation groove 14 is also a circular slot, the side wall of the ventilation groove 14 is provided with a ventilation hole 15 in communication with the outside, the ventilation hole 15 is arranged on the side wall of the bottom end of the cooling fin 12, and a ventilation diaphragm 2 is arranged in the positioning groove 13 and covers the ventilation groove 14 by means of adhesion. The ventilation hole 15 is hidden in the side wall of the cooling fin 12, and it is difficult for foreign matters to pierce the ventilation diaphragm 2 through the ventilation hole 15, so that the safety of the ventilation diaphragm 2 is higher; when the vehicle charger is working, air flow is generated in the casing 1, part of the air flow is discharged onto the cooling fin 12 through the ventilation hole 15, and the air flow on the cooling fin 12 is also driven, so that the heat dissipation effect of the cooling fin 12 is improved.

[0035] Due to the air flow generated in the heating process, the ventilation hole arranged at the bottom has certain benefits for overall heat dissipation in the current design, and the shell body can be reduced by about 1.5 degrees, and the comparison between the CAE calculation and the ordinary scheme is as follows:

[0036] Table 1 is the shell outer wall temperature of the traditional ventilation valve

[0037]

[0038]

[0039] Table 2 is the shell outer wall temperature of the present ventilation structure

[0040]

[0041] The two side walls of the cooling fin 12 where the ventilation groove 14 is located are integrally provided with protrusions 16, the ventilation hole 15 is arranged on the protrusion 16, the protrusion 16 increases the wall thickness of the cooling fin 12, facilitates the machining of the ventilation groove 14, and also ensures the strength of the cooling fin 12.

[0042] The ventilation groove 14 is a blind hole, the ventilation hole 15 is prevented from penetrating through the casing 1, and foreign matters are prevented from piercing the ventilation diaphragm 2 through the straight-through hole, the side wall of the bottom of the ventilation groove 14 is provided with two ventilation holes 15, the two ventilation holes 15 are uniformly distributed on the ventilation groove 14 and symmetrically arranged on the two sides of the cooling fin 12, and the ventilation hole 15 is arranged on the side wall of the ventilation groove 14, so that the ventilation air flow channel is of a curved type, and foreign matters are prevented from directly damaging the ventilation diaphragm 2 through the air flow channel.

[0043] The air permeable film 2 is an EPTFE film, the upper end surface of the air permeable film 2 is lower than the slot of the positioning groove 13, the air permeable film 2 is hidden at the bottom of the mounting groove 11, effectively avoiding interference with other components, and improving the integrity of the air permeable film 2.

[0044] Embodiment 2

[0045] Embodiment 2 is basically the same as embodiment 1, except that the bottom of the positioning groove 13 is provided with two air grooves 14, and the two air grooves 14 improve the air permeability of the air permeable structure.

[0046] Embodiment 3

[0047] Embodiment 3 is basically the same as embodiment 1 or 2, except that the positioning groove 13 is covered with a protective cover 3, the protective cover 3 is used to protect the air permeable film 2 and prevent it from being damaged, and the sidewall of the protective cover 3 is provided with a plurality of air passages 31 that communicate with the inside of the positioning groove 13, the number of air passages 31 in this embodiment is four, and the four air passages 31 are evenly distributed on the protective cover 3.

[0048] The lower end surface of the protective cover 3 is provided with a plurality of open grooves, the open grooves penetrate the sidewall of the protective cover 3 and form the air passages 31.

[0049] The sidewall of the positioning groove 13 is provided with a limiting groove 17, the limiting groove 17 is an annular limiting groove, the lower end of the protective cover 3 is provided with a limiting piece 32, the number of limiting pieces 32 is three, and the three limiting pieces 32 are evenly distributed on the protective cover 3, when the protective cover 3 is installed in the positioning groove 13, the limiting piece 32 is clamped in the limiting groove 17.

Claims

1. A vehicle-mounted charger with a novel ventilated structure, comprising a housing (1), an mounting groove (11) inside the housing (1), and a plurality of heat sinks (12) at the outer end of the housing (1), characterized in that: The bottom of the installation groove (11) is provided with a positioning groove (13), the bottom of the positioning groove (13) is provided with a ventilation groove (14), the sidewall of the ventilation groove (14) is provided with a ventilation hole (15) in communication with the outside, the ventilation hole (15) is arranged on the sidewall of the bottom end of the heat dissipation fin (12), a ventilation diaphragm (2) is installed in the positioning groove (13), and the ventilation diaphragm (2) covers the ventilation groove (14).

2. The vehicle-mounted charger with the novel ventilation structure according to claim 1, characterized in that: The sidewall of the heat dissipation fin (12) where the ventilation groove (14) is located is integrally formed with a protrusion (16), and the ventilation hole (15) is arranged on the protrusion (16).

3. The vehicle-mounted charger with the novel ventilation structure according to claim 1, characterized in that: The ventilation groove (14) is a blind hole, and the sidewall of the bottom of the ventilation groove (14) is provided with two ventilation holes (15), and the two ventilation holes (15) are uniformly distributed on the ventilation groove (14) and symmetrically arranged on both sides of the heat dissipation fin (12).

4. The vehicle-mounted charger with novel ventilation structure according to claim 1, characterized in that: The bottom of the positioning groove (13) is provided with two ventilation grooves (14).

5. The vehicle-mounted charger with novel ventilation structure according to claim 1, characterized in that: The ventilation diaphragm (2) is an EPTFE film, and the upper end surface of the ventilation diaphragm (2) is lower than the notch of the positioning groove (13).

6. The vehicle-mounted charger with the novel ventilation structure according to any one of claims 1-5, characterized in that: A protective cover (3) is combined on the positioning groove (13), and the sidewall of the protective cover (3) is provided with a plurality of ventilation channels (31) in communication with the inside of the positioning groove (13).

7. The vehicle-mounted charger with the novel ventilation structure according to claim 6, characterized in that: The lower end surface of the protective cover (3) is provided with a plurality of open grooves, the open grooves penetrate the sidewall of the protective cover (3) and form the ventilation channels (31).

8. The vehicle-mounted charging machine with a novel ventilation structure according to claim 6, characterized in that: The sidewall of the positioning groove (13) is provided with a limiting groove (17), and the lower end of the protective cover (3) is provided with a positioning sheet (32), When the protective cover (3) is installed in the positioning groove (13), the positioning sheet (32) is clamped in the limiting groove (17).

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