A waterproof and moisture-proof sealing device for vehicle chargers

Abstract

This utility model relates to the field of on-board charger sealing technology and discloses a waterproof and moisture-proof sealing device for on-board chargers, aiming to solve the shortcomings of the general fit of the sealing connection in the prior art. This utility model, through the interlocking connection of the sealing channel A and the sealing mechanism, superimposes the elastic restoring force of the vortex-shaped metal plate after compression, which can not only improve the fit of the connection to form a multi-directional sealing circuit, but also offset the gap displacement caused by vehicle vibration, ensuring that the sealing surface remains tight. At the same time, with the double support of the inner and outer edge protrusions, the contact area between the cover and the outer shell is greatly increased, and the connection is further strengthened by bolt fasteners, which can also form a secondary interception of water flow. The high moisture absorption performance of the adsorption plate absorbs the intruding moisture, preventing the internal components of the outer shell from getting damp. Moreover, the notch design of the adsorption plate facilitates periodic disassembly and replacement, taking into account both continuous protection and convenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of vehicle charger sealing technology, and in particular to a waterproof and moisture-proof sealing device for vehicle chargers. Background Technology

[0002] Chinese Patent Publication No. CN217985735U discloses a waterproof structure for an automotive charger, including a top cover and a housing that open and close via hinges. The top cover has a first sealing protrusion that surrounds the housing and a second sealing protrusion that partially surrounds it, forming a labyrinthine waterproof structure with varying heights. This provides excellent waterproofing, and any water that enters from the outside can be blocked and drained away by the water-blocking edge, thus preventing rainwater from seeping into the charger.

[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: the device achieves a gradient sealing effect through the interlocking of multiple sealing bosses and sealing grooves, but this structure relies on a good fit between the size of the top cover and the housing. Moreover, due to the vibration of the vehicle during operation, the top cover and the housing will vibrate and shift, which will affect the tightness of the fit between the sealing bosses and the sealing grooves, and thus affect its sealing effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the sealing connection of the existing technology has the disadvantage of poor fit. To address this, we propose a waterproof and moisture-proof sealing device for vehicle chargers.

[0005] To achieve the above objectives, this application adopts the following technical solution: a waterproof and moisture-proof sealing device for an on-board charger, comprising a shell and a cover, the cover covering the shell, an outer connecting flange plate fixed to the top of the outer side of the shell, a sealing channel A formed on the top of the outer connecting flange plate near the shell, an outer edge protrusion fixed to the outer edge of the bottom of the cover, the outer edge protrusion wrapping around the top of the outer side of the outer connecting flange plate, bolts and fasteners evenly connected between the outer side of the outer edge protrusion and the outer side of the outer connecting flange plate, and a sealing mechanism provided at the bottom of the cover near the sealing channel A. The sealing mechanism is inserted into the interior of the sealing channel A. The sealing mechanism includes a side sealing plate and a right-angle sealing plate fixed to the bottom of the cover. There are four side sealing plates and four right-angle sealing plates. The side sealing plates and right-angle sealing plates are alternately connected to form a rectangular ring. The outer walls of the side sealing plates and right-angle sealing plates are in contact with the inner wall of the sealing channel A. The bottom of the side sealing plates and right-angle sealing plates is connected to a vortex-shaped metal plate on the side near the outer shell. When the vortex-shaped metal plate is inside the sealing channel A, it is squeezed. At this time, the outer side of the vortex-shaped metal plate is in contact with the inner wall of the side sealing plate and the outer wall of the outer shell, respectively.

[0006] Preferably, the sealing channel A is located on the inner wall of the four corners and is set in a planar angle. The top height of the sealing channel A is lower than the top height of the outer shell. The outer shell and the outer connecting edge plate are an integral structure.

[0007] Preferably, the side sealing plate has a fitting port A on the side near the right-angle sealing plate, and the right-angle sealing plate has a fitting port B on the side near the side sealing plate, with fitting ports A and fitting ports B fitting together.

[0008] Preferably, the top of the outer shell is provided with a mounting groove, the inside of which is embedded an adsorption plate. An inner edge protrusion is fixed on the inner side of the bottom of the cover. A sealing channel B is provided at the bottom of the cover between the outer edge protrusion and the inner edge protrusion. The top edge of the outer shell is inserted into the inside of the sealing channel B.

[0009] Preferably, the cross-section of the adsorption plate is inverted L-shaped, and the bottom inner side of the adsorption plate is uniformly provided with notches.

[0010] Preferably, the outer wall of the inner edge boss fits the top of the inner wall of the outer shell, and the outer edge boss, the cover and the inner edge boss are an integral structure.

[0011] Preferably, a groove is provided on the side of the inner top of the sealing channel B near the inner edge protrusion, and the top of the adsorption plate is inserted into the groove.

[0012] The technical effects and advantages of this utility model are as follows: In this invention, the integrated height difference between the outer shell and the outer connecting edge plate, combined with the raised outer edge of the cover, forms a gradually rising sealing labyrinth, effectively intercepting external water intrusion. The interlocking connection between the sealing channel A and the sealing mechanism, combined with the elastic restoring force of the vortex-shaped metal plate after compression, not only improves the fit at the connection point through the interlocking opening to form a multi-directional sealing loop, but also offsets the gap displacement caused by vehicle vibration, ensuring a continuous tight fit of the sealing surface. With the double support of the inner and outer edge raised edges, the contact area between the cover and the outer shell is greatly increased, and the connection is further strengthened by bolt fasteners, while forming a secondary interception of water flow. The inverted L-shaped adsorption plate in the mounting groove cooperates with the groove of the sealing channel B, on the one hand, extending the water vapor intrusion path, and on the other hand, using the high hygroscopic performance of the adsorption plate to absorb the intruded moisture, preventing the internal components of the outer shell from getting damp. Moreover, the notch design of the adsorption plate facilitates regular disassembly and replacement, taking into account both continuous protection and convenient maintenance. It achieves multi-dimensional optimization of waterproofing, moisture-proofing, vibration resistance and easy maintenance, significantly improving the sealing reliability of the on-board charger in complex on-board environments. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the outer shell of this utility model; Figure 3 This is a three-dimensional structural diagram of the sealing mechanism of this utility model; Figure 4 This is a schematic diagram of the main cross-sectional planar structure of the sealing mechanism of this utility model; Figure 5 This is a bottom-view three-dimensional structural diagram of the cover of this utility model; Figure 6 This is a schematic diagram of the three-dimensional structure of the adsorption plate of this utility model.

[0014] Legend: 1. Outer shell; 11. Outer connecting edge plate; 111. Sealing channel A; 112. Sealing mechanism; 1121. Side sealing plate; 11211. Fitting port A; 1122. Right angle sealing plate; 11221. Fitting port B; 1123. Vortex-shaped metal plate; 12. Mounting groove; 121. Adsorption plate; 122. Notch; 2. Cover; 21. Outer edge boss; 22. Inner edge boss; 23. Sealing channel B; 231. Groove; 3. Bolt fastener. Detailed Implementation

[0015] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0016] Reference Figures 1-4As shown, this utility model provides a technical solution: a waterproof and moisture-proof sealing device for a vehicle charger, including a shell 1 and a cover 2. The cover 2 covers the shell 1. An outer connecting edge plate 11 is fixed to the top of the outer side of the shell 1. A sealing channel A111 is opened on the side of the top of the outer connecting edge plate 11 near the shell 1. An outer edge boss 21 is fixed to the outer edge of the bottom of the cover 2. The outer edge boss 21 wraps around the top of the outer side of the outer connecting edge plate 11. Bolts 3 are evenly connected between the outer side of the outer edge boss 21 and the outer side of the outer connecting edge plate 11. A sealing mechanism 112 is provided at the bottom of the cover 2 near the sealing channel A111. The sealing mechanism 112 is inserted into the interior of the sealing channel A111. Structure 112 includes a side sealing plate 1121 and a right-angle sealing plate 1122 fixed to the bottom of the cover 2. There are four side sealing plates 1121 and four right-angle sealing plates 1122. The side sealing plates 1121 and four right-angle sealing plates 1122 are alternately connected to form a rectangular ring. The outer walls of the side sealing plates 1121 and four right-angle sealing plates 1122 are in contact with the inner wall of the sealing channel A111. The bottom end of the side sealing plates 1121 and four right-angle sealing plates 1122 is connected to the side of the outer shell 1. When the vortex-shaped metal plate 1123 is inside the sealing channel A111, it is squeezed. At this time, the outer side of the vortex-shaped metal plate 1123 is in contact with the inner wall of the side sealing plate 1121 and the outer wall of the outer shell 1, respectively.

[0017] By utilizing the outer connecting flange 11, the outer shell 1, and the cover 2, a gradually increasing gradient sealing structure is formed, achieving a multi-layer sealing effect from the outside to the inside. Furthermore, by utilizing the cooperation between the sealing mechanism 112 and the sealing channel A111, and the elastic restoring force of the eddy current metal plate 1123 when compressed, the fit between the side sealing plate 1121, the right-angle sealing plate 1122, and the inner wall of the sealing channel A111 is improved. This self-compresses the sealing gap between the sealing channel A111 and the cover 2, reducing the gap displacement caused by vibration during vehicle operation and use. This further improves the installation reliability between the outer shell 1 and the cover 2, and also enhances the external sealing and waterproofing of the on-board charger.

[0018] Reference Figure 2 As shown in this embodiment: the sealing channel A111 is located on the inner wall of the four corners and is set in a planar angle. The top height of the sealing channel A111 is lower than the top height of the outer shell 1. The outer shell 1 and the outer connecting edge plate 11 are an integral structure.

[0019] By utilizing the height difference between the outer connecting flange 11 and the outer shell 1, a gradually rising sealing labyrinth is formed between the cover 2 and the outer shell 1, which reduces the intrusion of water flow and improves the interception and sealing effect of water flow on the periphery.

[0020] Reference Figure 3As shown, the side sealing plate 1121 has a fitting opening A11211 on the side near the right angle sealing plate 1122, and the right angle sealing plate 1122 has a fitting opening B11221 on the side near the side sealing plate 1121. The fitting openings A11211 and B11221 fit together.

[0021] By utilizing the fit between fitting port B11221 and fitting port A11211, the fit at the connection between side sealing plate 1121 and right-angle sealing plate 1122 is improved, forming a multi-directional sealing circuit.

[0022] Reference Figure 2 , Figure 5 As shown, the top of the outer shell 1 is provided with a mounting groove 12, and an adsorption plate 121 is embedded inside the mounting groove 12. An inner edge protrusion 22 is fixed on the inner side of the bottom end of the cover 2. A sealing channel B23 is provided at the bottom end of the cover 2 between the outer edge protrusion 21 and the inner edge protrusion 22. The top edge of the outer shell 1 is inserted into the interior of the sealing channel B23.

[0023] By utilizing the adsorption plate 121, the water vapor interception function is added to the innermost seal. That is, by utilizing the water absorption performance of the adsorption plate 121, the intruding moisture is absorbed to prevent the inside of the outer casing 1 from getting damp, thereby further improving the waterproof sealing effect of the vehicle charger.

[0024] Reference Figure 4 , Figure 6 As shown, the cross-section of the adsorption plate 121 is inverted L-shaped, and the bottom inner side of the adsorption plate 121 is uniformly provided with notches 122.

[0025] The inverted L-shaped structure of the adsorption plate 121 allows it to be inserted into the mounting groove 12 for installation, while ensuring the area of ​​its top end to enhance the absorption and contact area between it and moisture. The notch 122 allows the adsorption plate 121 to be lifted and removed later, enabling periodic replacement.

[0026] Reference Figure 5 As shown, the outer wall of the inner edge boss 22 is attached to the top of the inner wall of the outer shell 1, and the outer edge boss 21, the cover 2 and the inner edge boss 22 are an integral structure.

[0027] By utilizing the cooperation of the inner edge boss 22 and the outer edge boss 21, the contact area between the cover 2 and the inner and outer edges of the top of the outer shell 1 is increased, thereby further increasing the contact area between the outer shell 1 and the cover 2. With the help of the bolt fastener 3, the connection between the outer shell 1 and the cover 2 is improved, and at the same time, a stronger interception effect on the water flow is formed at the inner and outer edges.

[0028] Reference Figure 5As shown, a groove 231 is provided on the side of the inner top of the sealing channel B23 near the inner edge protrusion 22, and the top of the adsorption plate 121 is inserted into the groove 231.

[0029] The groove 231 is used to increase the contact area between the sealing channel B23 and the adsorption plate 121, and at the same time increase the flow loop length when water vapor invades inward, thereby improving the absorption effect of the adsorption plate 121 on moisture.

[0030] Working principle: The cover 2 is placed on the outer shell 1 and pressure is applied, so that the bottom ends of the right-angle sealing plate 1122 and the side sealing plate 1121 are inserted into the interior of the sealing channel A111. During this process, the vortex-shaped metal plate 1123 is deformed by a certain amount of compression in the interior space of the sealing channel A111. Under the action of elastic restoring force, the vortex-shaped metal plate 1123 undergoes restoring bending and stretching, and forms an outward pushing force on the outer wall of the outer shell 1 on both sides and the inner wall of the side sealing plate 1121 and the right-angle sealing plate 1122. This makes the side sealing plate 1121 and the inner wall of the sealing channel A111 fit more closely, thereby reducing the sealing gap and improving the sealing performance. The outer shell 1 and the cover 2 are connected and fixed by bolt fasteners 3. The connection between the outer shell 1 and the cover 2 is more stable by the action of multiple bolt fasteners 3, which effectively prevents the product connection from shifting due to vibration during operation of the on-board charger. Since the cover 2 completely covers the outer shell 1, the top of the adsorption plate 121 and the inner wall of the groove 231 are in contact. When moisture enters along the connection gap between the outer shell 1 and the cover 2, the moisture reaches the location of the adsorption plate 121 and is absorbed by the adsorption plate 121, thereby preventing water vapor from entering the interior of the outer shell 1 and protecting the internal components of the outer shell 1. At the same time, the inner edge protrusion 22 is used to enhance the sealing effect.

[0031] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A waterproof and moisture-proof sealing device for an on-vehicle charger, characterized by comprising: The device includes an outer shell and a cover. The cover covers the outer shell. An outer connecting flange is fixed to the top of the outer side of the outer shell. A sealing channel A is formed on the top of the outer connecting flange near the outer shell. An outer edge boss is fixed to the outer edge of the bottom of the cover. The outer edge boss wraps around the top of the outer side of the outer connecting flange. Bolts are evenly connected between the outer side of the outer edge boss and the outer side of the outer connecting flange. A sealing mechanism is provided at the bottom of the cover near the sealing channel A. The sealing mechanism is inserted into the sealing channel A. The mechanism includes a side sealing plate and a right-angle sealing plate fixed to the bottom of the cover. There are four side sealing plates and four right-angle sealing plates. The side sealing plates and right-angle sealing plates are alternately connected to form a rectangular ring. The outer walls of the side sealing plates and right-angle sealing plates are in contact with the inner wall of the sealing channel A. A vortex-shaped metal plate is connected to the bottom end of the side sealing plates and right-angle sealing plates near the outer shell. When the vortex-shaped metal plate is inside the sealing channel A, it is squeezed. At this time, the outer side of the vortex-shaped metal plate is in contact with the inner wall of the side sealing plate and the outer wall of the outer shell, respectively.

2. The on-board charger waterproof and moisture resistant sealing arrangement of claim 1, wherein: The sealing channel A is located on the inner wall at the four corners and is set in a planar angle. The top height of the sealing channel A is lower than the top height of the outer shell. The outer shell and the outer connecting edge plate are an integral structure.

3. The on-board charger waterproof and moisture resistant sealing arrangement of claim 1, wherein: Each side sealing plate has a fitting opening A on the side near the right-angle sealing plate, and each right-angle sealing plate has a fitting opening B on the side near the side sealing plate. The fitting openings A and B fit together.

4. The on-board charger waterproof and moisture resistant sealing arrangement of claim 1, wherein: The top of the outer shell is provided with a mounting groove, and an adsorption plate is embedded inside the mounting groove. An inner edge protrusion is fixed on the inner side of the bottom end of the cover. A sealing channel B is provided at the bottom end of the cover between the outer edge protrusion and the inner edge protrusion. The top edge of the outer shell is inserted into the interior of the sealing channel B.

5. The on-board charger waterproof and moisture resistant sealing device of claim 4, wherein: The adsorption plate has an inverted L-shaped cross-section, and the bottom inner side of the adsorption plate has evenly spaced notches.

6. The on-board charger waterproof and moisture resistant sealing device of claim 4, wherein: The outer wall of the inner edge boss fits the top of the inner wall of the outer shell, and the outer edge boss, the cover and the inner edge boss are an integral structure.

7. The on-board charger waterproof and moisture resistant sealing device of claim 4, wherein: A groove is provided on the side of the inner top of the sealing channel B near the inner edge protrusion, and the top of the adsorption plate is inserted into the groove.

Images