Waterproof charger

Abstract

The utility model discloses a waterproof charger, which comprises a shell, a circuit board is arranged in the shell, a charging input interface and a charging output interface are arranged on the circuit board, a potting colloid is arranged in the shell, the shell is filled with the potting colloid, and the circuit board is wrapped by the potting colloid; one or more heat conduction blocks are arranged in the potting colloid, the heat conduction blocks are in contact with the circuit board and the inner wall of the shell at the same time and are used for transmitting heat of the circuit board to the shell, and the charging input interface and the charging output interface are waterproof interfaces; according to the utility model, the shell is filled with the pouring sealant to form the pouring sealant body, the pouring sealant body wraps the circuit board, so that moisture in the external environment cannot permeate into the circuit board, and the charging input interface and the charging output interface are waterproof interfaces, so that the waterproof performance of the charging input interface and the charging output interface is effectively ensured; according to the utility model, the waterproof performance is effectively improved, and the charging requirement in a humid environment can be met.

Description

Technical Field

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

[0002] With the widespread use of electronic devices, chargers have become an indispensable accessory in people's daily lives. However, existing chargers often suffer from insufficient waterproofing during use. When used in humid environments, they are prone to short circuits, leakage, and other accidents. This cannot meet the growing demand for charging in outdoor adventures, water activities, and other humid environments.

[0003] In the prior art, the utility model patent application number CN202222770428.7 provides a highly secure waterproof charger, which includes a charger body and an interface fixed to the charger body. The charger body has a positioning groove at one end near the interface, and a waterproof plate that matches the positioning groove is slidably connected to the inside of the positioning groove. The lower end of the waterproof plate away from the charger body is fixed with a protrusion that matches the positioning groove. This highly secure waterproof charger inserts the waterproof plate into the positioning groove and fixes it to the positioning groove with the protrusion. The waterproof plate covers the interface to prevent water from entering the interface and posing a safety hazard to the user, thereby improving the overall safety of the charger body.

[0004] Although the waterproof charger provided by the above patent has a certain waterproof function, it covers the interface with a waterproof plate to prevent water from flowing into the interface. It can effectively block water from flowing directly into the interface in a short time, but it cannot prevent water vapor from entering. It still cannot meet the charging needs in a humid environment and needs further improvement. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof charger, aiming to solve the problem that the existing waterproof charger can effectively prevent water from flowing directly into the interface in a short time, but cannot prevent water vapor from entering, and cannot meet the charging needs in a humid environment.

[0006] The utility model is implemented as follows: a waterproof charger includes a shell, a circuit board is provided in the shell, a charging input interface and a charging output interface are provided on the circuit board, a potting colloid is provided in the shell, the potting colloid fills the shell and wraps the circuit board; one or more heat-conducting blocks are provided in the potting colloid, and the heat-conducting blocks are in contact with the circuit board and the inner wall of the shell at the same time, and are used to transfer the heat of the circuit board to the shell.

[0007] Furthermore, the shell includes an upper shell and a lower shell, the shell is made of aluminum alloy material, and a waterproof coating is provided on the shell.

[0008] Furthermore, the circuit board is electrically connected to a charging status indicator light, a lamp hole is provided on the housing, the charging status indicator light is located in the lamp hole, and the potting colloid wraps the electrical connection structure between the charging status indicator light and the circuit board.

[0009] Furthermore, the charging input interface and the charging output interface both use waterproof interfaces, and a charging contact protection cover and a waterproof sealing ring are provided inside the waterproof interface.

[0010] Furthermore, it also includes a power cord, which includes a plug, a cable and a connector. The plug and the connector are electrically connected through the cable. The plug is used to connect to an external power source, and the connector is used to connect to the charging input interface.

[0011] Furthermore, it also includes a power cord, the connector uses a waterproof connector, and the cable uses a waterproof cable.

[0012] Furthermore, an anti-slip structure is provided on the outer wall of the shell, and the anti-slip structure is an anti-slip pattern.

[0013] Furthermore, thermal grease is filled between the heat-conducting block and the circuit board.

[0014] Furthermore, the heat conducting block uses a heat pipe, and the heat pipe is a wire mesh heat pipe.

[0015] Furthermore, the shell is provided with a charging input socket and a charging output socket, and the charging input interface and the charging output interface are respectively located in the charging input socket and the charging output socket. An annular groove is provided on the hole wall of the charging input socket and the charging output socket, and a sealing ring is provided in the annular groove.

[0016] The shell of the utility model is filled with potting glue to form a potting colloid. The potting colloid fills the shell and wraps the circuit board, so that moisture in the external environment cannot penetrate into the circuit board. The charging input interface and the charging output interface of the utility model both use waterproof interfaces, which effectively ensures the waterproof performance of the charging input interface and the charging output interface. Therefore, the utility model effectively improves the waterproof performance and can meet the charging needs in a humid environment. The utility model is provided with a heat-conducting block, which can transfer the heat of the circuit board to the shell, enhance the heat dissipation capacity of the circuit board, and improve the heat dissipation effect of the utility model. The shell of the utility model is made of aluminum alloy material, which has the advantages of high strength, good corrosion resistance and good heat transfer. A waterproof coating is provided on the shell, which further improves the waterproof performance and water corrosion resistance. The utility model is provided with a charging status indicator light, which can indicate the use status of the charger, making the use of the utility model more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the power cord of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the housing of the utility model;

[0020] Figure 4 yes Figure 3 Magnified view of area A in center. DETAILED DESCRIPTION

[0021] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0023] like Figure 1 and Figure 2As shown, the utility model provides a waterproof charger, including a shell 1 and a power cord 5. The shell 1 includes an upper shell and a lower shell. The shell 1 is made of aluminum alloy material and has the advantages of high strength, good corrosion resistance and good heat transfer. The shell 1 is provided with a waterproof coating to improve the waterproof performance and water corrosion resistance. The outer wall of the shell 1 is provided with an anti-slip structure 6, and the anti-slip structure 6 is an anti-slip pattern. A circuit board is provided in the shell 1, and a charging input interface and a charging output interface are provided on the circuit board. The charging input interface and the charging output interface both use waterproof interfaces. A charging contact protection cover and a waterproof sealing ring are provided inside the waterproof interface. The charging contact protection cover has a variety of settings, such as an elastic hinged setting, which automatically covers the cover for protection when not in use and can be opened under the action of external force when in use. The waterproof sealing ring is made of rubber material and is used to squeeze the connector and the connector inserted into the interface to form a sealing structure, which can effectively ensure the waterproof performance of the charging input interface and the charging output interface. The power cord 5 includes a plug 51, a cable 52, and a connector 53. The plug 51 and connector 53 are electrically connected via the cable 52. The plug 51 is used to connect to an external power source, and the connector 53 is used to connect to the charging input interface. The cable 52 is a waterproof cable, and the connector 53 is a waterproof connector 53, such as an aviation plug or an SF12L waterproof connector plug. The specific model and structure are selected based on the structure of the charging input interface, which further improves the waterproof performance of the utility model.

[0024] like Figure 3 and Figure 4 As shown, the housing 1 is provided with a charging input socket and a charging output socket 7. The charging input interface and charging output interface provided on the circuit board are respectively located in the charging input socket and charging output socket 7 of the housing 1. The hole walls of the charging input socket and charging output socket 7 are provided with an annular groove, and the annular groove is provided with a sealing ring 8. The sealing ring 8 is made of rubber material and is used to squeeze the connector and connector head inserted into the socket to connect to the interface to form a seal structure. This further improves the waterproof performance of the charging input interface and charging output interface when in use.

[0025] The charging input interface and the charging output interface electrically connected to the circuit board, and the charging input socket and the charging output socket 7 set on the shell 1 can be adaptively set to different shapes, such as circular, rectangular, etc., according to different usage scenarios.

[0026] like Figure 3As shown, the housing 1 is filled with potting glue to form a potting gel 2, so that the potting gel 2 fills the housing 1 and wraps the circuit board to ensure that moisture cannot penetrate the circuit board. A plurality of heat-conducting blocks 3 are provided in the potting gel 2. One side of the heat-conducting block 3 is connected to the circuit board through thermal grease, so that the heat of the circuit board can be effectively transferred to the heat-conducting block 3. The other side of the heat-conducting block 3 directly contacts the inner wall of the housing 1, so that the heat-conducting block 3 can transfer the heat from the circuit board to the housing 1. The heat-conducting block 3 uses a heat pipe, preferably a wire mesh heat pipe, which has a good thermal conductivity.

[0027] like Figure 1 As shown, the circuit board is electrically connected to a charging status indicator light 4. A light hole is provided on the housing 1, and the charging status indicator light 4 is located in the light hole. The potting gel 2 encapsulates the electrical connection structure between the charging status indicator light 4 and the circuit board. The charging status indicator light 4 is used to indicate the charger's usage status. When connected to a power source but not charging, the green light flashes. When charging, the red light is on steadily. When fully charged, the green light is on steadily.

[0028] In some exemplary embodiments, a MUC chip, a fast charging chip, and a temperature sensor are provided on the circuit board. The fast charging chip and the temperature sensor are electrically connected to the MUC chip. The output end of the fast charging chip is electrically connected to the charging output interface. The fast charging chip can output a variety of charging voltages / currents of different sizes. A safety temperature threshold is set in the MUC chip. The temperature sensor detects the temperature of the circuit board and transmits it to the MUC chip. The MUC chip compares it with the safety temperature threshold. When the temperature of the circuit board is lower than the safety temperature threshold, the MUC chip controls the fast charging chip to output a large current to achieve fast and efficient charging. When the temperature of the circuit board is equal to or higher than the safety temperature threshold, the MUC chip controls the fast charging chip to reduce the output current to reduce heat generation and ensure safe use.

[0029] In some exemplary embodiments, a MUC chip, a fast charging chip, a temperature sensor and a Bluetooth chip are provided on the circuit board. The fast charging chip, the temperature sensor and the Bluetooth chip are all electrically connected to the MUC chip. The output end of the fast charging chip is electrically connected to the charging output interface. The fast charging chip can output a variety of charging voltages / currents of different sizes. A safety temperature threshold is provided in the MUC chip. The temperature sensor detects the temperature of the circuit board and transmits it to the MUC chip. The MUC chip compares it with the safety temperature threshold. When the temperature of the circuit board is lower than the safety temperature threshold, the MUC chip controls the fast charging chip to output a large current to achieve fast and efficient charging. When the temperature of the circuit board is equal to or higher than the safety temperature threshold, the MUC chip controls the fast charging chip to reduce the output current to reduce heat generation and ensure safe use. The MUC chip can communicate with the control APP on smart electronic devices such as smartphones through the Bluetooth chip, and transmit the temperature of the circuit board and the output voltage of the fast charging chip to the control APP. The control APP has a charging voltage control page. On the charging voltage control page, you can set the output voltage allowed by the charging chip and transmit it to the Bluetooth chip via a Bluetooth signal. The Bluetooth chip transmits the signal to the MUC chip. The MUC chip adjusts the output voltage of the charging chip to the charging voltage / current set on the control APP. In this way, the output voltage / current of the charger can be electronically controlled.

[0030] In summary, the housing 1 of the present invention is filled with potting glue to form a potting colloid 2. The potting colloid 2 fills the housing 1 and wraps the circuit board, so that moisture in the external environment cannot penetrate into the circuit board, and both the charging input interface and the charging output interface use waterproof interfaces, which effectively ensures the waterproof performance of the charging input interface and the charging output interface. Therefore, the present invention effectively improves the waterproof performance and can meet the charging needs in a humid environment. In addition, the present invention is provided with a heat-conducting block 3, which can transfer the heat of the circuit board to the housing 1, thereby enhancing the heat dissipation capacity of the circuit board and improving the heat dissipation effect of the present invention.

[0031] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A waterproof charger, comprising a housing (1), wherein a circuit board is provided in the housing (1), and a charging input interface and a charging output interface are provided on the circuit board, characterized in that: A potting colloid (2) is provided in the housing (1), and the potting colloid (2) fills the housing (1) and wraps the circuit board; one or more heat-conducting blocks (3) are provided in the potting colloid (2), and the heat-conducting blocks (3) are in contact with the circuit board and the inner wall of the housing (1) at the same time, and are used to transfer heat from the circuit board to the housing (1).

2. The waterproof charger according to claim 1, characterized in that: The housing (1) comprises an upper housing and a lower housing; the housing (1) is made of an aluminum alloy material; and a waterproof coating is provided on the housing (1).

3. The waterproof charger according to claim 1, characterized in that: The circuit board is electrically connected to a charging status indicator light (4); a lamp hole is provided on the housing (1); the charging status indicator light (4) is located in the lamp hole; and the potting colloid (2) wraps the electrical connection structure between the charging status indicator light (4) and the circuit board.

4. The waterproof charger according to claim 1, characterized in that: The charging input interface and the charging output interface are both waterproof interfaces, and a charging contact protection cover and a waterproof sealing ring are provided inside the waterproof interface.

5. The waterproof charger according to claim 1, characterized in that: The device further comprises a power cord (5), wherein the power cord (5) comprises a plug (51), a cable (52) and a connector (53), wherein the plug (51) and the connector (53) are electrically connected via the cable (52), wherein the plug (51) is used to be connected to an external power source, and the connector (53) is used to be connected to a charging input interface.

6. The waterproof charger according to claim 5, characterized in that: It also includes a power cord (5), the connector (53) uses a waterproof connector (53), and the cable (52) uses a waterproof cable.

7. A waterproof charger according to claim 1, characterized in that: An anti-slip structure (6) is provided on the outer wall of the housing (1), and the anti-slip structure (6) is an anti-slip pattern.

8. The waterproof charger according to any one of claims 1 to 7, characterized in that: Thermal conductive silicone grease is filled between the heat conductive block (3) and the circuit board.

9. The waterproof charger according to claim 8, characterized in that: The heat conducting block (3) uses a heat pipe, and the heat pipe is a wire mesh heat pipe.

10. The waterproof charger according to claim 1, characterized in that: The housing (1) is provided with a charging input socket and a charging output socket (7), the charging input interface and the charging output interface are respectively located in the charging input socket and the charging output socket (7), annular grooves are provided on the hole walls of the charging input socket and the charging output socket (7), and a sealing ring (8) is provided in the annular groove.

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