Bidirectional waterproof enhanced heat dissipation charger structure

Abstract

The application discloses a bidirectional waterproof reinforced heat-dissipation charger structure, which comprises a shell, a circuit board, an inner container box, a waterproof heat-dissipation structure and a bidirectional heat-dissipation air duct. The inner container box is fixed in the shell, the circuit board is fixed in the inner container box, the waterproof heat-dissipation structure is arranged on the side surface of the inner container box, the top of the shell is provided with an upper air inlet, the bottom of the shell is provided with a lower air inlet, the upper air inlet and the lower air inlet are matched to form the bidirectional heat-dissipation air duct, and the waterproof heat-dissipation structure is matched with the bidirectional heat-dissipation air duct. The bidirectional natural heat-dissipation cooling function is realized by utilizing the temperature difference heat dissipation, the fan is cancelled, the noise is reduced, the bidirectional waterproof function is realized, the structure is simple, the charger is not prone to damage, and the service life of the charger is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric vehicle chargers, in particular to a bidirectional waterproof enhanced heat dissipation charger structure. BACKGROUND

[0002] The conventional structure of the existing electric two-wheeled vehicle charger is to set a circuit board in a plastic shell and actively dissipate heat through a fan. This structure has problems such as loud noise, non-waterproofness, and easy damage. Some chargers on the market use an aluminum shell to increase the heat dissipation area, but also have problems such as high cost and easy damage. Therefore, improvements are needed for the above problems. SUMMARY

[0003] The present application provides a new bidirectional waterproof enhanced heat dissipation charger structure to solve the problems of loud noise, non-waterproofness, and easy damage in the prior art.

[0004] To solve the above technical problems, the present application realizes the following technical scheme:

[0005] A bidirectional waterproof enhanced heat dissipation charger structure includes a shell, a circuit board, and an inner box. The inner box is fixed in the shell, and the circuit board is fixed in the inner box. The side of the inner box is provided with a waterproof heat dissipation structure. The top of the shell is provided with an upper air inlet, and the bottom of the shell is provided with a lower air inlet. The upper air inlet and the lower air inlet cooperate to form a bidirectional heat dissipation air duct, and the waterproof heat dissipation structure cooperates with the bidirectional heat dissipation air duct.

[0006] The inner box is used to fix the circuit board. The upper air inlet and the lower air inlet are used to form a bidirectional heat dissipation air duct. The bidirectional heat dissipation air duct dissipates heat through the characteristics of cold air entering from the bottom and hot air exiting from the top, so that the charger can be placed in both directions to achieve natural air duct heat dissipation, thereby canceling the fan and reducing noise. The waterproof heat dissipation structure connects the inside and outside of the inner box, simultaneously achieving heat dissipation and bidirectional waterproof function, and cooperating with the bidirectional heat dissipation air duct to achieve higher heat dissipation efficiency. The present application realizes the bidirectional natural heat dissipation cooling function by utilizing temperature difference heat dissipation, cancels the fan, reduces noise, and realizes bidirectional waterproof function. The structure is simple, not easy to damage, and prolongs the service life of the charger.

[0007] As a preferred, the bidirectional waterproof enhanced heat dissipation charger structure includes a louver and a brim. The louver connects the inside and outside of the inner box to achieve heat dissipation function. The brim is located on the outside of the inner box to achieve waterproof function and prevent water from entering the louver when the charger is placed in reverse.

[0008] The louver is used to connect the inside and outside of the inner box to achieve heat dissipation function. The brim is used to achieve waterproof function and prevent water from entering the louver when the charger is placed in reverse.

[0009] As preferred, the bidirectional waterproof enhanced heat dissipation charger structure, the leaf direction of the louver is high inside and low outside, and the brim is located below the louver.

[0010] The leaf direction of the louver is high inside and low outside, which plays a waterproof role when the charger is placed in a forward direction. The brim is located below the louver, which guarantees the waterproof effect of the brim when the charger is placed in a reverse direction.

[0011] As preferred, the bidirectional waterproof enhanced heat dissipation charger structure, the brim is a C-shaped concave arc structure and is high inside and low outside.

[0012] The C-shaped concave arc structure makes the waterproof effect of the brim better when the charger is placed in a reverse direction. Because of the convexity, water flows away along the two sides of the C-shaped concave arc structure and does not accumulate. When the charger is placed in a forward direction, the C-shaped concave arc structure is not easy to accumulate water. The high inside and low outside make the brim not easy to accumulate water when the charger is placed in a forward direction, and water flows from inside to outside towards the low place, guaranteeing the waterproof and heat dissipation effects of the waterproof heat dissipation structure.

[0013] As preferred, the bidirectional waterproof enhanced heat dissipation charger structure, the inner container box is provided with a sealing glue layer, and the sealing glue layer covers the circuit board.

[0014] The sealing glue layer is used for the glue sealing of the circuit board, plays a role in shockproof and waterproof, solves the problem of water accumulation and condensation, and thus prolongs the service life of the charger.

[0015] As preferred, the bidirectional waterproof enhanced heat dissipation charger structure, the shell includes an upper cover, a lower cover, the upper cover, the inner container box and the lower cover are connected to each other and fixed by screws.

[0016] The upper cover, the inner container box and the lower cover are connected to each other and fixed by screws, which improves the structural stability and makes the charger not easy to be damaged.

[0017] As preferred, the bidirectional waterproof enhanced heat dissipation charger structure, the upper air outlets are distributed on the top side of the upper cover, and the lower air outlets are distributed on the bottom side of the lower cover.

[0018] The design of distributing multiple upper air outlets and lower air outlets improves the range of the bidirectional heat dissipation air duct and guarantees the heat dissipation effect of the charger.

[0019] As preferred, the bidirectional waterproof enhanced heat dissipation charger structure, the side surface of the shell is provided with an anti-scald and anti-slip structure.

[0020] The anti-scald and anti-slip structure is used for the user to hold and contact, which plays a role in anti-scald and anti-slip.

[0021] Preferably, in the bidirectional waterproof enhanced heat dissipation charger structure described above, the anti-scalding and anti-slip structure is a honeycomb-like array of ribs.

[0022] The honeycomb-like array of raised ribs reduces the contact area between the user's hands and the outer shell, thus preventing burns, while also increasing friction to prevent slipping.

[0023] Preferably, in the bidirectional waterproof enhanced heat dissipation charger structure described above, both the outer shell and the inner box are provided with reinforcing ribs.

[0024] The reinforcing ribs are used to improve the structural strength of the outer shell and inner box, making the charger less prone to damage. Attached Figure Description

[0025] Figure 1 This is an exploded view of the present invention;

[0026] Figure 2 This is a schematic diagram of the inner liner box in this invention;

[0027] Figure 3 This is a schematic diagram of the structure of the present invention when it is placed upright;

[0028] Figure 4 This is a schematic diagram of the structure of the present invention when it is placed in reverse;

[0029] Figure 5 This is a cross-sectional view of the present invention;

[0030] Figure 6 This is a reference diagram showing the usage state of the present invention when it is placed upright;

[0031] Figure 7 This is a reference diagram showing the usage state of the present invention when it is placed upside down. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-7 The invention will be further described in detail with reference to specific embodiments, but these are not intended to limit the invention:

[0033] Example 1

[0034] A bidirectional waterproof enhanced heat dissipation charger structure includes a shell 1, a circuit board 2, and an inner box 3. The inner box 3 is fixed inside the shell 1, and the circuit board 2 is fixed inside the inner box 3. A waterproof heat dissipation structure 31 is provided on the side of the inner box 3. An upper air vent 11 is provided on the top of the shell 1, and a lower air vent 12 is provided on the bottom of the shell 1. The upper air vent 11 and the lower air vent 12 cooperate to form a bidirectional heat dissipation channel 13. The waterproof heat dissipation structure 31 cooperates with the bidirectional heat dissipation channel 13.

[0035] Preferably, the waterproof and heat dissipation structure 31 includes louvers 32 and a brim 33. The louvers 32 connect the inner and outer sides of the inner box 3, and the brim 33 is located on the outer side of the inner box 3.

[0036] Preferably, the slats of the venetian blind 32 are oriented with the inner side higher than the outer side, and the brim 33 is located below the venetian blind 32.

[0037] Preferably, the brim 33 has a C-shaped concave arc structure with the inner part higher than the outer part.

[0038] Preferably, the inner box 3 is provided with a sealing layer 34, which covers the circuit board 2.

[0039] Preferably, the outer shell 1 includes an upper cover 14 and a lower cover 15, and the upper cover 14, the inner box 3, and the lower cover 15 are connected to each other and fixed with screws.

[0040] Preferably, the upper air vent 11 is located on the top side of the upper cover 14, and the lower air vent 12 is located on the bottom side of the lower cover 15.

[0041] Preferably, the outer shell 1 is provided with an anti-scalding and anti-slip structure 16 on its side.

[0042] Preferably, the anti-scalding and anti-slip structure 16 is a honeycomb-shaped array of convex ribs.

[0043] Preferably, both the outer shell 1 and the inner liner box 3 are provided with reinforcing ribs 4.

[0044] like Figure 6 As shown, when the charger is placed upright, the heat generated by the circuit board 2 is dissipated upwards through the louvers 32. Cool air enters through the lower vent 12 of the lower cover 15, while hot air dissipates through the upper vent 11 on the upper cover 14, achieving effective heat dissipation. At this time, because the upper cover 14 has an upper vent 11, some contaminants such as rainwater will enter and flow out in the direction shown in the figure. The downward-sloping orientation of the louvers 32 also prevents contaminants from entering the inner box 3, achieving a waterproof effect.

[0045] like Figure 7 As shown, when the charger is placed upside down, the heat generated by the circuit board 2 is dissipated upwards through the louvers 32. At this time, the upper vent 11 of the upper cover 14 becomes the air intake channel, and the lower vent 12 of the lower cover 15 becomes the air outlet channel. The heat generated by the circuit board 2 is still dissipated upwards through the louvers 32, achieving effective heat dissipation. Meanwhile, contaminants may enter the interior along the lower vent 12 of the lower cover 15. The protruding cap 33 on the louvers 32 blocks these contaminants, preventing them from entering the inner box 3 along the louvers 32, thus achieving reverse waterproofing.

[0046] Example 2

[0047] The bidirectional waterproof enhanced heat dissipation charger obtained in Example 1 is taken, and an existing fan type heat dissipation charger of Model 10016 of Zhejiang Lv Yuan Electric Vehicle Co., Ltd. is taken as Comparative Example 1, and a test on heat dissipation performance is carried out, and the test method is as follows:

[0048] 1. The two chargers are placed in a forward direction, and the temperature probe is preset on the surface of each heating device inside; 2. The PCB assembly is completed into the aluminum shell; 3. Each heating device is compressed to the aluminum shell using a compression strip to ensure close fitting; 4. The PCB in the shell is injected with insulating heat-conducting glue and waits for it to solidify; 5. The temperature rise value of each point is tested under the same environmental temperature.

[0049] The test parameters of the heat dissipation performance of the bidirectional waterproof enhanced heat dissipation charger obtained in Example 1 and Comparative Example 1 are shown in Table 1:

[0050] Table 1

[0051]

[0052] The test shows that the temperature of the internal device with the highest temperature rise of the charger decreases from 71.7℃ to 59.6℃, and the temperatures of the remaining heating devices also decrease to different degrees, which can greatly prolong the service life of the charger, and the effect is remarkable.

[0053] In summary, the above only describes the preferred embodiments of the present application, and any equivalent changes and modifications made within the scope of the application for patent shall belong to the scope of the present application.

Claims

1. A bidirectional waterproof enhanced heat dissipation charger structure, comprising a shell (1) and a circuit board (2), characterized in that: Also include the inner box (3), the inner box (3) is fixed in the shell (1), the circuit board (2) is fixed in the inner box (3), the side of the inner box (3) is provided with waterproof heat dissipation structure (31), the top of the shell (1) is provided with upper air port (11), the bottom of the shell (1) is provided with lower air port (12), the upper air port (11) is matched with the lower air port (12) and forms bidirectional heat dissipation air duct (13), the waterproof heat dissipation structure (31) is matched with the bidirectional heat dissipation air duct (13), the waterproof heat dissipation structure (31) includes louver (32), brim (33), the louver (32) is communicated inside and outside of the inner box (3), the brim (33) is located at the outside of the inner box (3), the blade direction of the louver (32) is high inside and low outside, the brim (33) is located below the louver (32), the brim (33) is C type concave arc structure and high inside and low outside, the shell (1) includes upper cover (14), lower cover (15), the upper cover (14), the inner box (3), the lower cover (15) are connected and fixed by screw, the upper air port (11) is distributed in the top side of the upper cover (14), the lower air port (12) is distributed in the bottom side of the lower cover (15).

2. The bidirectional waterproof enhanced heat dissipation charger structure according to claim 1, wherein: The inner box (3) is provided with sealing glue layer (34), the sealing glue layer (34) covers the circuit board (2).

3. The bidirectional waterproof enhanced heat dissipation charger structure according to claim 1, wherein: The side of the shell (1) is provided with anti-scalding and anti-skid structure (16).

4. The bidirectional waterproof enhanced heat dissipation charger structure according to claim 3, characterized in that: The anti-scalding and anti-skid structure (16) is honeycomb type array rib.

5. The bidirectional waterproof enhanced heat sink charger structure of claim 1, wherein: The shell (1) and the inner box (3) are provided with reinforcing rib (4).

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