A waterproof charger shell
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JUNQIANG PLASTIC CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
Smart Images

Figure CN224538475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charger technology, specifically a waterproof charger housing. Background Technology
[0002] A charger is a device that converts alternating current (AC) to direct current (DC). It can intelligently regulate voltage and current to safely charge devices such as mobile phones and computers, and supports fast charging and wireless charging technologies. It also has built-in safety mechanisms such as overcharge protection and temperature control.
[0003] Currently, the charger casing is a crucial structural element of any charger. To ensure its waterproof performance, most charger casings are enclosed structures, lacking proper heat dissipation mechanisms. As charger power increases, the heat generated also rises. However, charger casings are typically made of plastic, which has low thermal conductivity. Consequently, the internal temperature of the charger casing increases, accelerating the aging of internal components. Furthermore, the USB port of the charger lacks a waterproof structure, making it highly susceptible to water ingress, especially when the USB port is not connected. Therefore, the waterproof performance of charger casings in existing technologies has certain deficiencies. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, existing charger casings sacrifice heat dissipation to ensure waterproof performance, resulting in insufficient heat dissipation and easy water ingress at the USB port, thus affecting the waterproof performance of the charger casing. This utility model proposes a waterproof charger casing.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a waterproof charger shell, including a charger shell body and a USB interface, the USB interface is opened on one side of the charger shell body, the surface of the charger shell body is provided with a heat dissipation vent, a heat dissipation aluminum plate is fixedly installed inside the heat dissipation vent, a number of heat dissipation fins are fixedly installed on the surface of the heat dissipation aluminum plate, and a waterproof component is provided inside the USB interface.
[0006] The waterproof component includes two slots, which are respectively opened on both sides of the inner wall of the USB interface. A support rod is fixedly installed inside each slot, and a support plate is rotatably sleeved on the surface of the support rod. A torsion spring is installed inside the slot, and one end of the torsion spring is fixedly connected to the bottom of the support plate. A first sealing gasket is fixedly installed on the top of the support plate. A support component is installed inside the USB interface, and the support component works in conjunction with the support plate.
[0007] Preferably, the inner wall of the plate groove is provided with an installation groove, a crossbar is fixedly installed inside the installation groove, the torsion spring is rotatably sleeved on the surface of the crossbar, and the other end of the torsion spring is fixedly connected to the inner wall of the installation groove.
[0008] Preferably, a rubber pad is fixedly installed on the top of the support plate, and the surface of the rubber pad abuts against the inner wall of the plate groove.
[0009] Preferably, the support assembly includes two grooves formed on the inner wall of the USB interface, and inclined top blocks are slidably connected inside the two grooves. The inclined top blocks are used in conjunction with the support plate. A spring is provided inside the groove. One end of the spring is fixedly connected to one side of the inclined top block, and the other end of the spring is fixedly connected to the inner wall of the groove. A second sealing gasket is fixedly installed on the other side of the inclined top block.
[0010] Preferably, a slider is fixedly installed on the surface of the inclined top block, and a groove is formed on the inner wall of the groove, with the inner cavity of the groove slidably connected to the surface of the slider.
[0011] Preferably, a positioning sleeve is fixedly installed inside the groove, and a positioning rod is fixedly connected to one side of the inclined top block. The surface of the positioning rod is slidably connected to the inner cavity of the positioning sleeve, and the surfaces of the positioning sleeve and the positioning rod are slidably connected to the inner cavity of the spring.
[0012] Preferably, a limiting block is fixedly installed on the inner wall of the positioning sleeve, and a limiting groove is formed on the surface of the positioning rod, with the inner cavity of the limiting groove slidingly connected to the surface of the limiting block.
[0013] The advantages of this utility model are:
[0014] This invention uses a heat dissipation port, a heat dissipation aluminum plate, and heat dissipation fins to dissipate heat from the charger, preventing the internal temperature of the charger casing from becoming too high and causing components to age. The USB interface is sealed by a waterproof component, and the support component further seals the support plate, thus preventing external water from entering the USB interface and solving the problem of external water entering the charger casing through the USB interface. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the heat dissipation port structure of this utility model;
[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0019] Figure 4 This utility model Figure 3 A magnified structural diagram of part A;
[0020] Figure 5 This is a schematic diagram of the support component structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the inclined top block structure of this utility model;
[0022] Figure 7 This is a schematic diagram of the positioning sleeve structure of this utility model.
[0023] In the diagram: 1. Charger housing; 2. Heat dissipation vent; 21. Heat dissipation aluminum plate; 22. Heat dissipation fins; 3. USB interface; 4. Waterproof component; 41. Plate groove; 42. Support plate; 4201. Support rod; 43. Torsion spring; 4301. Mounting groove; 4302. Crossbar; 44. First sealing gasket; 45. Rubber gasket; 5. Support component; 51. Groove; 52. Sloping top block; 5201. Slider; 5202. Slide groove; 53. Spring; 54. Second sealing gasket; 55. Positioning sleeve; 5501. Limiting block; 5502. Limiting groove; 56. Positioning rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.
[0026] This application discloses a waterproof charger casing. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A waterproof charger housing includes a charger housing body 1 and a USB interface 3. The USB interface 3 is located on one side of the charger housing body 1. A heat dissipation vent 2 is provided on the surface of the charger housing body 1. A heat dissipation aluminum plate 21 is fixedly installed inside the heat dissipation vent 2. Several heat dissipation fins 22 are fixedly installed on the surface of the heat dissipation aluminum plate 21. A waterproof component 4 is provided inside the USB interface 3.
[0027] The waterproof component 4 includes two slots 41, which are respectively opened on both sides of the inner wall of the USB interface 3. A support rod 4201 is fixedly installed inside each slot 41. A support plate 42 is rotatably sleeved on the surface of the support rod 4201. A torsion spring 43 is installed inside the slot 41. One end of the torsion spring 43 is fixedly connected to the bottom of the support plate 42. A first sealing gasket 44 is fixedly installed on the top of the support plate 42. A support component 5 is installed inside the USB interface 3. The support component 5 works in conjunction with the support plate 42.
[0028] The heat dissipation aluminum plate 21 and heat dissipation fins 22 can dissipate heat from the charger. The heat dissipation vent 2 prevents the user from contacting the heat dissipation fins 22 and heat dissipation aluminum plate 21. The position of the support plate 42 is supported by the torsion spring 43, so that the support plate 42 can seal the USB interface 3. The support component 5 seals the seam between the support plate 42 and the USB interface 3, thus preventing external water from entering the USB interface 3 when it is not in use. When the USB interface 3 is in use, the support plate 42 enters the interior of the plate groove 41, and the two first sealing gaskets 44 abut against the two sides of the USB connector, and the support component 5 contacts the other two sides of the USB connector, so as to effectively seal the gap between the USB connector and the USB interface 3, thereby preventing liquid from entering the USB interface 3 during use.
[0029] Reference Figure 3 and Figure 4 The inner wall of the plate groove 41 is provided with a mounting groove 4301. A crossbar 4302 is fixedly installed inside the mounting groove 4301. A torsion spring 43 is rotatably sleeved on the surface of the crossbar 4302. The other end of the torsion spring 43 is fixedly connected to the inner wall of the mounting groove 4301. By sleeved on the surface of the crossbar 4302 and stabilized by the mounting groove 4301, the torsion spring 43 can provide stable support for the support plate 42, so as to ensure that the support plate 42 can function as a seal for the USB interface 3.
[0030] Reference Figure 3 and Figure 4A rubber pad 45 is fixedly installed on the top of the support plate 42, and the surface of the rubber pad 45 abuts against the inner wall of the plate groove 41. The rubber pad 45 seals the gap between the support plate 42 and the plate groove 41, preventing external liquid from entering the USB interface 3 through the gap between the support plate 42 and the plate groove 41.
[0031] Reference Figure 5 and Figure 6 The support component 5 includes two grooves 51 formed on the inner wall of the USB interface 3. An inclined top block 52 is slidably connected inside each groove 51. The inclined top block 52 cooperates with the support plate 42. A spring 53 is installed inside each groove 51. One end of the spring 53 is fixedly connected to one side of the inclined top block 52, and the other end is fixedly connected to the inner wall of the groove 51. A second sealing gasket 54 is fixedly installed on the other side of the inclined top block 52. The spring 53 supports the position of the inclined top block 52, allowing the inclined top block 52 to engage with the support plate. The support plate 42 abuts against one side, thereby sealing the gap between the support plate 42 and the USB interface 3. When the USB connector is inserted into the USB interface 3, the support plate 42 pushes the inclined protrusion into the interior of the groove 51 through the inclined surface of the inclined protrusion. After the USB connector is fully inserted into the USB interface 3, the inclined protrusion is supported by the spring 53. The inclined protrusion supports the second sealing gasket 54 so that the second sealing gasket 54 abuts against the other two sides of the USB connector, thereby effectively sealing the gap between the USB connector and the USB interface 3.
[0032] Reference Figure 5 and Figure 6 A slider 5201 is fixedly installed on the surface of the inclined top block 52, and a groove 5202 is provided on the inner wall of the groove 51. The inner cavity of the groove 5202 is slidably connected to the surface of the slider 5201. The slider 5201 and the groove 5202 make the inclined protrusion slide more smoothly, avoiding friction, jamming and other situations that prevent it from moving. At the same time, it can stabilize the position of the inclined protrusion and prevent the inclined protrusion from separating from the groove 51.
[0033] Reference Figure 5 , Figure 6 and Figure 7A positioning sleeve 55 is fixedly installed inside the groove 51, and a positioning rod 56 is fixedly connected to one side of the inclined top block 52. The surface of the positioning rod 56 is slidably connected to the inner cavity of the positioning sleeve 55, and the surfaces of the positioning sleeve 55 and the positioning rod 56 are slidably connected to the inner cavity of the spring 53. A limit block 5501 is fixedly installed on the inner wall of the positioning sleeve 55, and a limit groove 5502 is opened on the surface of the positioning rod 56. The inner cavity of the limit groove 5502 is slidably connected to the surface of the limit block 5501. By setting the positioning rod 56 and the positioning sleeve 55, the position of the spring 53 can be effectively stabilized, and the spring 53 can be prevented from twisting or deforming, which would affect the support effect. At the same time, the limit block 5501 and the limit groove 5502 can prevent the positioning rod 56 from separating from the positioning sleeve 55, thereby ensuring the stability of the position of the spring 53.
[0034] Working Principle: During the use of the charger, the heat dissipation aluminum plate 21 and heat dissipation fins 22 can dissipate heat from the charger. The heat dissipation vent 2 prevents the user from contacting the heat dissipation fins 22 and heat dissipation aluminum plate 21. The mounting groove 4301 and crossbar 4302 stabilize the position of the torsion spring 43, so that the torsion spring 43 supports the support plate 42, thereby allowing the support plate 42 to seal the USB interface 3. The rubber pad 45 seals the risk between the support plate 42 and the plate groove 41. At the same time, the limiting block 5501 and limiting groove 5502 prevent the positioning rod 56 from separating from the positioning sleeve 55, so that the positioning rod 56 and positioning sleeve 55 support the spring 53, preventing the spring 53 from twisting or deforming. The spring 53 supports the inclined protrusion, and the slider 5201 and sliding groove 5202 stabilize the position of the inclined protrusion. The inclined protrusion abuts against one side of the support plate 42, thereby sealing the gap between the support plate 42 and the USB interface 3. When the USB interface 3 is not in use, external water sources are prevented from entering the USB interface 3. When the USB connector is inserted into the USB interface 3, the support plate 42 rotates on the surface of the support rod 4201 under the push of the USB connector, so that the support plate 42 rotates into the interior of the plate groove 41. The support plate 42 also exerts a squeezing effect on the inclined protrusion, so that the inclined protrusion enters the interior of the groove 51. After the USB connector is fully inserted into the USB interface 3, the two first sealing gaskets 44 abut against the two sides of the USB connector. Under the support of the spring 53, the second sealing gasket 54 abuts against the other two sides of the USB connector, so as to effectively seal the gap between the USB connector and the USB interface 3, thereby preventing liquid from entering the USB interface 3 during use of the charger.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A waterproof charger housing, comprising a charger housing body (1) and a USB interface (3), characterized in that: The USB interface (3) is located on one side of the charger housing body (1). The charger housing body (1) has a heat dissipation vent (2) on its surface. A heat dissipation aluminum plate (21) is fixedly installed inside the heat dissipation vent (2). Several heat dissipation fins (22) are fixedly installed on the surface of the heat dissipation aluminum plate (21). A waterproof component (4) is installed inside the USB interface (3). The waterproof component (4) includes two slots (41), which are respectively opened on both sides of the inner wall of the USB interface (3). A support rod (4201) is fixedly installed inside each of the two slots (41). A support plate (42) is rotatably sleeved on the surface of the support rod (4201). A torsion spring (43) is provided inside the slot (41). One end of the torsion spring (43) is fixedly connected to the bottom of the support plate (42). A first sealing gasket (44) is fixedly installed on the top of the support plate (42). A support component (5) is provided inside the USB interface (3). The support component (5) works in conjunction with the support plate (42).
2. The waterproof charger housing according to claim 1, characterized in that: The inner wall of the plate groove (41) is provided with an installation groove (4301), and a crossbar (4302) is fixedly installed inside the installation groove (4301). The torsion spring (43) is rotatably sleeved on the surface of the crossbar (4302), and the other end of the torsion spring (43) is fixedly connected to the inner wall of the installation groove (4301).
3. The waterproof charger housing according to claim 1, characterized in that: A rubber pad (45) is fixedly installed on the top of the support plate (42), and the surface of the rubber pad (45) abuts against the inner wall of the plate groove (41).
4. The waterproof charger housing according to claim 1, characterized in that: The support assembly (5) includes two grooves (51) formed on the inner wall of the USB interface (3). An inclined top block (52) is slidably connected inside each of the two grooves (51). The inclined top block (52) is used in conjunction with the support plate (42). A spring (53) is provided inside the groove (51). One end of the spring (53) is fixedly connected to one side of the inclined top block (52), and the other end of the spring (53) is fixedly connected to the inner wall of the groove (51). A second sealing gasket (54) is fixedly installed on the other side of the inclined top block (52).
5. A waterproof charger housing according to claim 4, characterized in that: A slider (5201) is fixedly installed on the surface of the inclined top block (52), and a groove (5202) is provided on the inner wall of the groove (51). The inner cavity of the groove (5202) is slidably connected to the surface of the slider (5201).
6. A waterproof charger housing according to claim 4, characterized in that: A positioning sleeve (55) is fixedly installed inside the groove (51), and a positioning rod (56) is fixedly connected to one side of the inclined top block (52). The surface of the positioning rod (56) is slidably connected to the inner cavity of the positioning sleeve (55), and the surfaces of the positioning sleeve (55) and the positioning rod (56) are slidably connected to the inner cavity of the uniform spring (53).
7. A waterproof charger housing according to claim 6, characterized in that: The inner wall of the positioning sleeve (55) is fixedly installed with a limiting block (5501), and the surface of the positioning rod (56) is provided with a limiting groove (5502). The inner cavity of the limiting groove (5502) is slidably connected to the surface of the limiting block (5501).