Dustproof and waterproof heat dissipation type charger

Abstract

The utility model relates to the technical field of chargers, and provides a dustproof and waterproof heat dissipation type charger, which comprises a shell, a heat dissipation module and a power supply module, the flow guide plate is arranged in the containing cavity and divides the containing cavity into a first sub-cavity and a second sub-cavity, the flow guide plate is provided with a first face and a second face which are oppositely arranged, the first face is located in the first sub-cavity, and the second face is located in the second sub-cavity; the circuit board is located in the first sub-cavity and arranged on the first face, the circuit board is sealed in the first sub-cavity through a silica gel structure, and the circuit board is electrically connected with the outside through an electric wire penetrating into the first sub-cavity; the heat conduction fins are located in the second sub-cavity and arranged on the second face, and the number of the heat conduction fins is multiple; the cooling fan is located in the second sub-cavity and arranged on the second face, and the cooling fan is electrically connected with the circuit board; and the second sub-cavity is communicated with the outside of the shell. According to the technical scheme, the problem that a circuit board cannot be effectively protected when an existing charger is perforated for heat dissipation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chargers, and in particular to a dustproof, waterproof and heat-dissipating charger. Background Art

[0002] Battery chargers are widely used charging devices in modern society. When the charger is working, the internal power devices will generate a certain amount of heat. Generally, the charger will use heat dissipation holes or fans on the outer shell to dissipate heat inside the charger. However, since the heat dissipation holes are opened on the outer shell of the charger, there are risks such as foreign matter entering, moisture, and rain. The PCBA in the charger cannot be effectively protected, which will shorten the service life of the charger.

[0003] Therefore, a new charger is urgently needed. Utility Model Content

[0004] The utility model provides a dustproof and waterproof heat dissipation charger, which solves the problem that the existing charger cannot effectively protect the circuit board when opening holes for heat dissipation.

[0005] The technical solution of the utility model is as follows:

[0006] A dustproof, waterproof and heat dissipation charger, comprising:

[0007] A housing having a receiving cavity disposed therein;

[0008] a guide plate, arranged in the accommodating cavity and isolating the accommodating cavity into a first sub-cavity and a second sub-cavity, the guide plate having a first surface and a second surface arranged opposite to each other, the first surface being located in the first sub-cavity, and the second surface being located in the second sub-cavity;

[0009] A circuit board is located in the first sub-cavity and arranged on the first surface, the circuit board is sealed in the first sub-cavity by a silicone structure, and the circuit board is electrically connected to the outside by means of a wire inserted into the first sub-cavity;

[0010] a heat-conducting fin located in the second sub-cavity and arranged on the second surface, wherein the heat-conducting fin is in a plurality; and

[0011] a heat dissipation fan, located in the second sub-cavity and arranged on the second surface, the heat dissipation fan being electrically connected to the circuit board;

[0012] Wherein, a plurality of the heat-conducting fins form a heat dissipation area, the heat dissipation fan is located at one side of the heat dissipation area, and the second sub-cavity is communicated with the outside of the housing.

[0013] As a further technical solution, a plurality of the heat-conducting fins are arranged side by side, and the spacing between any two adjacent heat-conducting fins is equal.

[0014] As a further technical solution, there are two cooling fans arranged side by side.

[0015] As a further technical solution, the housing comprises:

[0016] The bottom shell is in the shape of a "concave" character;

[0017] A front shell, arranged at the front opening of the bottom shell;

[0018] Two side bodies are respectively arranged at the side openings of the bottom shell;

[0019] The bottom shell, the surface shell and the side body cooperate to form the accommodating cavity, and a ventilation hole is provided on the side body, and the ventilation hole is connected to the second sub-cavity.

[0020] As a further technical solution, the side body includes a rigid baffle and a plastic baffle, the rigid baffle is connected to the bottom shell and the face shell, the plastic baffle is connected to the rigid baffle, a notch is provided on the rigid baffle, and the ventilation hole is provided on the plastic baffle and faces the notch.

[0021] As a further technical solution, a bracket is arranged in the first sub-cavity, one end of the bracket is connected to the surface shell, and the other end is connected to the circuit board.

[0022] As a further technical solution, a slot is provided on the inner wall of the bottom shell, and the guide plate is inserted into the slot to achieve connection with the bottom shell.

[0023] As a further technical solution, the guide plate and the circuit board are detachably connected by means of bolts.

[0024] The working principle and beneficial effects of the utility model are as follows: the dustproof and waterproof heat dissipation charger comprises a housing, a guide plate, a circuit board, heat-conducting fins and a heat dissipation fan. The housing has a receiving cavity, the guide plate is arranged in the receiving cavity and separates the receiving cavity into a first sub-cavity and a second sub-cavity. The guide plate has a first surface and a second surface arranged opposite to each other, the first surface is used to form a first sub-cavity, and the second surface is used to form a second sub-cavity. The circuit board is located in the first sub-cavity and is arranged on the first surface of the guide plate, and the circuit board is sealed in the first sub-cavity by a silicone structure. The heat-conducting fins and the heat dissipation fan are both located in the second sub-cavity and are arranged on the second surface of the guide plate. Since the second sub-cavity is connected to the outside of the housing, when the heat dissipation fan is driven, the heat dissipation fan will suck in the gas outside the housing, and then blow it to the heat-conducting fins, and the gas will eventually flow from the second sub-cavity to the external space of the housing, that is, under the action of the heat dissipation fan, it is equivalent to forming a heat dissipation channel in the second sub-cavity. In this case, the heat-conducting fins can effectively reduce the temperature of the circuit board when it works at high power. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Figure 1 This is a schematic diagram of the exploded structure of the charger provided by the utility model;

[0027] Figure 2 This is a schematic diagram of the utility model after hiding part of the structure;

[0028] Figure 3 It is a schematic diagram of the structure of the matching part of the bracket and the circuit board in the utility model.

[0029] In the figure: 1. outer shell; 101. bottom shell; 102. top shell; 103. rigid baffle; 104. plastic baffle; 2. guide plate; 3. circuit board; 4. thermal fins; 5. cooling fan; 6. bracket; 7. slot; 8. wires. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figure 1 to Figure 3 As shown, this embodiment provides a dustproof, waterproof and heat dissipation charger, including:

[0032] The housing 1 has a receiving cavity disposed therein;

[0033] The guide plate 2 is arranged in the accommodating cavity and separates the accommodating cavity into a first sub-cavity and a second sub-cavity. The guide plate 2 has a first surface and a second surface that are arranged opposite to each other. The first surface is located in the first sub-cavity, and the second surface is located in the second sub-cavity.

[0034] A circuit board 3 is located in the first sub-cavity and is arranged on the first surface. The circuit board 3 is sealed in the first sub-cavity by a silicone structure. The circuit board 3 is electrically connected to the outside by means of a wire 8 inserted into the first sub-cavity.

[0035] A heat-conducting fin 4 is located in the second sub-cavity and is arranged on the second surface, and there are a plurality of heat-conducting fins 4; and

[0036] A heat dissipation fan 5 is located in the second sub-cavity and is arranged on the second surface, and the heat dissipation fan 5 is electrically connected to the circuit board 3;

[0037] A plurality of heat-conducting fins 4 form a heat dissipation area, a heat dissipation fan 5 is located at one side of the heat dissipation area, and the second sub-cavity is communicated with the outside of the housing 1 .

[0038] In this embodiment, the dustproof and waterproof heat dissipation charger includes a housing 1, a guide plate 2, a circuit board 3, heat conducting fins 4 and a heat dissipation fan 5. The housing 1 has a receiving cavity, and the guide plate 2 is arranged in the receiving cavity and separates the receiving cavity into a first sub-cavity and a second sub-cavity. The guide plate 2 has a first surface and a second surface arranged opposite to each other, the first surface is used to form a first sub-cavity, and the second surface is used to form a second sub-cavity. The circuit board 3 is located in the first sub-cavity and is arranged on the first surface of the guide plate 2, and the circuit board 3 is sealed in the first sub-cavity by a silicone structure. The heat conducting fins 4 and the heat dissipation fan 5 are both located in the second sub-cavity and are arranged on the second surface of the guide plate 2. Since the second sub-cavity is connected to the outside of the housing 1, when the heat dissipation fan 5 is driven, the heat dissipation fan 5 will suck in the gas outside the housing 1, and then blow it to the heat conducting fins 4, and the gas will eventually flow from the second sub-cavity to the external space of the housing 1, that is, under the action of the heat dissipation fan 5, it is equivalent to forming a heat dissipation channel in the second sub-cavity. In this case, the heat conducting fins 4 can effectively reduce the temperature of the circuit board 3 when it works at high power.

[0039] In a practical application, sealant is applied to the contact between the guide plate 2 and the inner wall of the accommodating cavity, and the sealant forms a silicone structure, and the circuit board is a PCBA. In addition, the heat conducting fins 4 can also be integrated with the guide plate 2.

[0040] Further, if Figure 1-2 As shown, this embodiment proposes that a plurality of heat-conducting fins 4 are arranged side by side, and the distance between any two adjacent heat-conducting fins 4 is equal.

[0041] In this embodiment, in order to further reduce the temperature of the circuit board 3, a plurality of heat-conducting fins 4 are arranged in a row, and the distance between any two adjacent heat-conducting fins 4 is equal. Since there is a distance between the heat-conducting fins 4, the flowing gas can contact more areas on the heat-conducting fins 4, thereby effectively reducing the temperature on the heat-conducting fins 4.

[0042] Further, if Figure 1-2 As shown, this embodiment proposes that two heat dissipation fans 5 are arranged side by side.

[0043] In this embodiment, in order to better make the gas of the second sub-body flow in an orderly manner, more than two cooling fans 5 are arranged in a side-by-side manner, and the cooling fans 5 are arranged to be located at the same end of the heat conducting fins 4. As for the number of cooling fans 5, it is appropriately selected according to the space in the housing 1.

[0044] Further, if Figure 1-2 As shown, this embodiment proposes that the housing 1 includes:

[0045] The bottom shell 101 is in the shape of a Chinese character "concave";

[0046] The front shell 102 is arranged at the front opening of the bottom shell 101;

[0047] There are two side bodies, which are respectively arranged at the side openings of the bottom shell 101;

[0048] The bottom shell 101, the front shell 102 and the side body cooperate to form a receiving cavity, and a ventilation hole is opened on the side body, and the ventilation hole is connected to the second sub-cavity.

[0049] In this embodiment, the housing 1 includes a bottom housing 101, a front housing 102 and a side body. The bottom housing 101 is in a "concave" shape. The front housing 102 is arranged at the front opening of the bottom housing 101, that is, the front housing 102 faces the bottom wall of the bottom housing 101. There are two side bodies and they are arranged at the side openings of the bottom housing 101. In this way, the bottom housing 101, the front housing 102 and the side body form a receiving cavity. The housing 1 adopts a split setting form, which is more conducive to disassembly and assembly and maintenance of internal parts.

[0050] Further, if Figure 1-2 As shown, this embodiment proposes that the side body includes a rigid baffle 103 and a plastic baffle 104, the rigid baffle 103 is connected to the bottom shell 101 and the surface shell 102, the plastic baffle 104 is connected to the rigid baffle 103, a notch is opened on the rigid baffle 103, and the ventilation hole is opened on the plastic baffle 104 and faces the notch.

[0051] In this embodiment, the side body includes a rigid baffle 103 and a plastic baffle 104. The rigid baffle 103 is detachably connected to the bottom shell 101 and the surface shell 102. The plastic baffle 104 is arranged on the rigid baffle 103. A notch is arranged on the rigid baffle 103, and the notch faces the second sub-cavity. The ventilation hole is arranged on the plastic baffle 104, and the ventilation hole faces the notch. Under the joint action of the ventilation hole and the notch, the second sub-cavity is connected with the external space of the outer shell 1.

[0052] Further, if Figure 1 to Figure 3 As shown, this embodiment proposes that a bracket 6 is provided in the first sub-cavity, one end of the bracket 6 is connected to the surface shell 102, and the other end is connected to the circuit board 3.

[0053] In this embodiment, in order to reduce the contact area between the circuit board 3 and the inner wall of the first sub-cavity, and thus improve the heat dissipation of the circuit board 3, a bracket 6 is provided inside the first sub-cavity, and the circuit board 3 is placed on the bracket 6. That is, one side of the circuit board 3 is in contact with the bracket 6, and the other side is in contact with the guide plate 2. This installation method of the circuit board 3 can transfer the heat on the circuit board 3 to the guide plate 2 as much as possible, and then transfer it to the outside of the charger through the heat conducting fins 4, rather than transferring it to the housing 1 and then dissipating it to the outside from the housing 1.

[0054] Further, if Figure 1 As shown, this embodiment proposes that a slot 7 is opened on the inner wall of the bottom shell 101 , and the guide plate 2 is inserted into the slot 7 to achieve connection with the bottom shell 101 .

[0055] In this embodiment, in order to facilitate the installation of the guide plate 2, since the bottom shell 101 is in a "concave" shape, a clamping groove 7 is provided on the side wall of the concave portion of the bottom shell 101, and the guide plate 2 can be inserted into the clamping groove 7. The connection between the bottom shell 101 and the guide plate 2 is achieved by clamping, and installation and removal are very convenient.

[0056] Further, if Figure 2-3 As shown, this embodiment proposes that the guide plate 2 and the circuit board 3 are detachably connected by means of bolts.

[0057] In this embodiment, in order to further improve the convenience of installation and disassembly, a detachable connection is achieved between the guide plate 2 and the circuit board 3 by means of bolt connection, that is, a threaded hole is punched on the guide plate 2, and then a through light hole is set on the circuit board 3. The bolt passes through the circuit board 3 and then enters the threaded hole of the guide plate 2.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dustproof and waterproof heat dissipation charger, characterized in that: include: A housing (1) having a receiving cavity disposed therein; a guide plate (2) arranged in the accommodating cavity and isolating the accommodating cavity into a first sub-cavity and a second sub-cavity, the guide plate (2) having a first surface and a second surface arranged opposite to each other, the first surface being located in the first sub-cavity, and the second surface being located in the second sub-cavity; A circuit board (3) is located in the first sub-cavity and arranged on the first surface, the circuit board (3) is sealed in the first sub-cavity by a silicone structure, and the circuit board (3) is electrically connected to the outside by means of an electric wire inserted into the first sub-cavity; a heat-conducting fin (4), located in the second sub-cavity and arranged on the second surface, wherein the heat-conducting fin (4) is a plurality of fins; and a heat dissipation fan (5), located in the second sub-cavity and arranged on the second surface, the heat dissipation fan (5) being electrically connected to the circuit board (3); Wherein, a plurality of the heat-conducting fins (4) form a heat dissipation area, the heat dissipation fan (5) is located on one side of the heat dissipation area, and the second sub-cavity is connected to the outside of the housing (1).

2. A dustproof and waterproof heat dissipation charger according to claim 1, characterized in that: A plurality of the heat-conducting fins (4) are arranged side by side, and the spacing between any two adjacent heat-conducting fins (4) is equal.

3. A dustproof and waterproof heat dissipation charger according to claim 2, characterized in that: There are two cooling fans (5) arranged side by side.

4. A dustproof and waterproof heat dissipation charger according to any one of claims 1 to 3, characterized in that: The housing (1) comprises: The bottom shell (101) is in the shape of a Chinese character "concave"; A front shell (102) is arranged at the front opening of the bottom shell (101); Two side bodies are respectively arranged at the side openings of the bottom shell (101); The bottom shell (101), the surface shell (102) and the side body cooperate to form the accommodating cavity, and a ventilation hole is provided on the side body, and the ventilation hole is connected to the second sub-cavity.

5. A dustproof and waterproof heat dissipation charger according to claim 4, characterized in that: The side body comprises a rigid baffle (103) and a plastic baffle (104); the rigid baffle (103) is connected to the bottom shell (101) and the front shell (102); the plastic baffle (104) is connected to the rigid baffle (103); a notch is provided on the rigid baffle (103); and the ventilation hole is provided on the plastic baffle (104) and faces the notch.

6. A dustproof and waterproof heat dissipation charger according to claim 5, characterized in that: A bracket (6) is arranged in the first sub-cavity, one end of the bracket (6) is connected to the surface shell (102), and the other end is connected to the circuit board (3).

7. A dustproof and waterproof heat dissipation charger according to claim 6, characterized in that: A slot (7) is provided on the inner wall of the bottom shell (101), and the guide plate (2) is inserted into the slot (7) to achieve connection with the bottom shell (101).

8. The dustproof and waterproof heat dissipation charger according to claim 7, characterized in that: The guide plate (2) and the circuit board (3) are detachably connected by means of bolts.

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