Thermal management device with protection function for automobile charging interface

Abstract

The invention relates to a thermal management device with a protection function for an automobile charging interface, which comprises the charging interface arranged in an inner cavity of an automobile body, the surface of the charging interface is rotatably connected with a lantern ring driven by a driving mechanism, and one side of the lantern ring is communicated with an air blowing hopper communicated with an external air pump through an air inlet pipeline. The invention relates to the technical field of automobile charging interfaces. According to the thermal management device with the protection function for the automobile charging interface, the sleeve ring rotates to drive the sealing air bag to expand and contract, the empty groove is completely sealed in a non-heat-dissipation state, and IP67-level protection is achieved; during heat dissipation, the empty groove is opened, forced convection is formed through the air blowing hopper and the discharging channel, heat and impurities are rapidly discharged, too high temperature rise is avoided, the sealing air bag expands to fill the empty groove only after the lantern ring rotates in place, friction between the sealing air bag and the surface of the connector in the expansion state is avoided, and abrasion is reduced. The clamping design of the rubber guide frame and the empty groove further reduces mechanical loss during relative movement of the sealing faces, and the service life of the sealing assembly is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile charging interfaces, and in particular to a thermal management device with a protective function for an automobile charging interface. Background Art

[0002] With the rapid development of new energy vehicles, the thermal management and protection of electric vehicle charging ports are receiving increasing attention. Charging ports are prone to heat accumulation during long periods of high-power charging, which can lead to material aging, poor contact, and even safety hazards. At the same time, exposed ports are susceptible to intrusion by external pollutants such as dust and rain, affecting charging efficiency and device life. In existing technologies, the protection and heat dissipation design of charging ports often uses static sealing structures (such as rubber ring seals) combined with passive heat dissipation solutions, but there are the following problems:

[0003] The contradiction between sealing and heat dissipation: The traditional sealing structure needs to remain closed during charging to prevent contaminants from entering, but the closed state will hinder the dissipation of internal heat, resulting in excessive temperature rise; if heat dissipation holes are added, the sealing performance may be reduced.

[0004] Dynamic seal wear: Elastic seals (such as rubber rings) are prone to wear due to friction during repeated opening and closing or rotation. After long-term use, the sealing effect decreases and the maintenance cost is high.

[0005] Insufficient cleaning ability: Existing technologies make it difficult to actively clean the inner cavity of the interface during the charging process, resulting in the accumulation of impurities that may cause poor contact or short circuit risks. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the present invention provides a thermal management device with a protective function for a vehicle charging interface, which solves the above-mentioned problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a thermal management device with a protective function for a vehicle charging interface, comprising a charging interface disposed in a vehicle body cavity, a collar rotatably connected to the surface of the charging interface and driven by a driving mechanism, one side of the collar being connected to a blower connected to an external air pump via an air intake duct, and the other side of the collar being provided with an exhaust channel, the inner cavity of the charging interface being provided with two slots corresponding to the positions of the blower and the exhaust channel, respectively, and the inner cavity of the collar being provided with two sealing assemblies for sealing the two slots;

[0008] The closing component includes a telescopic airbag fixed in the inner cavity of the collar and a sliding groove opened in the inner cavity of the collar, the inner cavity of the sliding groove is slidably connected to a sliding plate, one side of the sliding plate is fixedly connected to a sealing airbag, the sealing airbag and the telescopic airbag are connected through a connecting pipe, and the side of the charging interface is fixedly connected to an extrusion plate located on the side of the telescopic airbag. Under normal circumstances, the sealing airbag inside the collar is in a closed state relative to the empty groove, and the charging interface is in a sealed state. When heat dissipation is required, or possible dirt inside needs to be cleaned, the drive motor is started to rotate, driving the collar Rotate clockwise, and the telescopic airbag moves away from the extrusion plate and loses the extrusion reset. The gas in the sealed airbag enters the telescopic airbag through the connecting pipe, and the sealed airbag shrinks, losing the blockage of the empty groove. And through the setting of the sliding groove and the sliding plate, the collar moves first, and the sliding plate slides counterclockwise in the sliding groove. At this time, the sealed airbag remains in the empty groove until the sliding plate moves to the left limit of the sliding groove. At this time, the telescopic airbag is completely reset, the sealed airbag has shrunk, and then continue to rotate to quickly remove the sealed airbag from the empty groove. At this time, the air is blown through the blowing bucket, and the two empty grooves form convection to remove the impurities inside. The heat is discharged to cool down. When cooling down or cleaning is completed and it needs to be reset, rotate the collar counterclockwise until the telescopic airbag abuts the side of the extrusion plate. At this time, the sealed airbag has moved to the top of the empty slot, and then continue to rotate. The telescopic airbag is squeezed by the airflow into the sealed airbag, and the sealed airbag begins to expand. At this time, the collar continues to move. At this time, with the cooperation of the sliding plate, the sealed airbag and the charging port are relatively stationary until the movement reaches the limit. At this time, the sealed airbag is completely expanded, and the rubber guide frame will be stuck in the empty slot. At this time, with the expansion of the sealed airbag, effective sealing can be performed. While the sealing airbag can effectively seal the charging port at the same time, the sealing airbag will not move in the expanded state during sealing and contact sealing, which can effectively reduce the friction between the sealing airbag and the surface of the charging port. Normal sealing uses the elasticity of the rubber elastic component to perform extrusion sealing in a transitional fit state. Wear will inevitably occur during rotation, and long-term use will reduce the sealing effect. By setting it in place before expanding during sealing, the friction loss of the sealing airbag is reduced, the service life is longer, and while cooling and heat dissipation are achieved, a good sealing effect is guaranteed, and the protective performance is stronger.

[0009] As a further solution of the present invention: the driving mechanism includes a driving motor fixed to the side of the charging interface, the output shaft end of the driving motor is fixedly connected to a driving gear, the surface of the collar is provided with teeth that mesh with the driving gear, and the driving collar rotates on the outer ring of the charging interface by rotating the driving motor.

[0010] As a further solution of the present invention: the two empty slots are respectively opened above and below the charging interface, and the two empty slots form an air flow path, which can not only dissipate heat but also clean impurities inside the charging interface.

[0011] As a further solution of the present invention: the blowing hopper and the sealing airbag are both arranged on the same plane of the ring and concentrically arranged with the empty slot. When the ring rotates, the blowing hopper and the sealing airbag are always driven to move on the trajectory of the concentric circle between the charging interface surface and the empty slot.

[0012] As a further solution of the present invention: one side of the vehicle body is connected to a fixed pipe, and one side of the discharge channel is connected to the fixed pipe through a telescopic pipe. Through the setting of the telescopic pipe, the movement of the discharge channel can also continuously ensure communication with the fixed pipe.

[0013] As a further solution of the present invention: a one-way outward-opening sealing valve is provided at the connection point between the fixed pipe and the vehicle body, through which internal impurities and hot air can be output in one direction and external water vapor can be prevented from entering.

[0014] As a further solution of the present invention: the inner cavity of the charging interface is provided with a guide groove connected to the discharge channel. Through the setting of the guide groove, sewage that may exist in the charging interface will enter the discharge channel and be discharged under the guidance of the guide groove.

[0015] As a further solution of the present invention: the surface of the sealing airbag is fixedly connected to a rubber guide frame adapted to the inner cavity of the empty groove. When the ring rotates and drives the sealing airbag to rotate to one side of the empty groove, after it is rotated into place, the rubber guide frame will be clamped in the empty groove. At this time, effective sealing can be performed in conjunction with the expansion of the sealing airbag.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) Dynamic sealing and heat dissipation coordinated control:

[0018] The expansion and contraction of the sealed airbag is driven by the rotation of the collar, and the slot is completely closed in the non-heat dissipation state to achieve IP67 level protection; when heat dissipation is required, the slot is opened and forced convection is formed by the blower and the exhaust channel to quickly discharge heat and impurities to avoid excessive temperature rise.

[0019] (2) Low wear and long life sealing structure:

[0020] The sealing airbag expands to fill the empty groove only after the collar is rotated into place, avoiding friction with the interface surface in the expanded state and reducing wear;

[0021] The snap-fit design between the rubber guide frame and the empty groove further reduces mechanical loss during relative movement of the sealing surfaces, thereby extending the life of the sealing assembly.

[0022] (3) Active cleaning and anti-fouling capabilities:

[0023] Forced airflow can remove dust, water stains and other pollutants from the inner cavity of the interface, and the design of the guide groove and one-way sealing valve can prevent the backflow of external water vapor;

[0024] The connecting design of the telescopic pipe and the fixed pipe ensures that the discharge channel can still stably discharge impurities when the collar rotates.

[0025] (4) Intelligent control and high efficiency energy saving:

[0026] The drive motor and the collar gear mesh to achieve precise rotation control and fast response;

[0027] The air pump and drive mechanism are activated only when cooling or cleaning is required, reducing energy consumption.

[0028] (5) Compact structure and strong compatibility:

[0029] The collar, blower and sealing airbag are integrated on the same plane, adapting to the installation space of the existing charging port;

[0030] The modular design facilitates maintenance and replacement, and is suitable for interfaces of various vehicle models. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional view of the structure of the present invention;

[0032] Figure 2 It is a side view of the structure of the collar of the present invention;

[0033] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at point A in the middle;

[0034] Figure 4 It is a partial structural cross-sectional view of the present invention.

[0035] In the figure: 1. Vehicle body; 2. Charging port; 3. Ring; 4. Empty slot; 5. Exhaust channel; 6. Fixed pipe; 7. Telescopic pipe; 8. Intake pipe; 9. Blowing hopper; 10. Sliding slot; 12. Sealing airbag; 13. Rubber guide frame; 15. Telescopic airbag; 16. Connecting pipe; 17. Sliding plate; 18. Drive motor; 19. Extrusion plate; 20. Guide groove. DETAILED DESCRIPTION

[0036] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0037] See also Figure 1-4 The present invention provides a technical solution: a thermal management device with a protective function for a vehicle charging interface, comprising a charging interface 2 disposed within the inner cavity of a vehicle body 1. A collar 3 driven by a driving mechanism is rotatably connected to the surface of the charging interface 2. A blowing hopper 9 connected to an external air pump via an air intake duct 8 is connected to one side of the collar 3. An exhaust channel 5 is provided on the other side of the collar 3. Two slots 4 corresponding to the positions of the blowing hopper 9 and the exhaust channel 5 are respectively defined within the inner cavity of the charging interface 2. Two sealing components for sealing the two slots 4 are provided within the inner cavity of the collar 3.

[0038] The closing component includes a telescopic airbag 15 fixed to the inner cavity of the collar 3 and a sliding groove 10 opened in the inner cavity of the collar 3. The inner cavity of the sliding groove 10 is slidably connected to a sliding plate 17. One side of the sliding plate 17 is fixedly connected to a sealing airbag 12. The sealing airbag 12 and the telescopic airbag 15 are connected through a connecting pipe 16. The side of the charging interface 2 is fixedly connected to an extrusion plate 19 located on the side of the telescopic airbag 15. Under normal circumstances, the sealing airbag 12 inside the collar 3 is in a closed state relative to the empty groove 4. At this time, the charging interface 2 is in a sealed state. When heat dissipation is required, or the dirt that may exist inside needs to be cleaned, the drive motor 18 is started to rotate, driving the collar 3 Rotate clockwise, at this time the telescopic airbag 15 is away from the extrusion plate 19 and loses the extrusion reset, the gas in the sealing airbag 12 enters the telescopic airbag 15 through the connecting pipe 16, the sealing airbag 12 shrinks, and loses the blockage of the empty groove 4, and through the setting of the sliding groove 10 and the sliding plate 17, the collar 3 moves first, and the sliding plate 17 slides counterclockwise in the sliding groove 10. At this time, the sealing airbag 12 remains in the empty groove 4 until the sliding plate 17 moves to the left limit of the sliding groove 10. At this time, the telescopic airbag 15 is completely reset, the sealing airbag 12 has shrunk, and then continue to rotate to quickly remove the sealing airbag 12 from the empty groove 4. At this time, blow air through the blowing bucket 9, and cooperate with the two The empty slot 4 forms convection, discharges the heat of the internal impurities, and cools down. When cooling or cleaning is completed, when it is necessary to reset, rotate the ring 3 counterclockwise until the telescopic airbag 15 abuts against the side of the extrusion plate 19. At this time, the sealing airbag 12 has moved to the top of the empty slot 4, and then continue to rotate. The telescopic airbag 15 is squeezed into the sealing airbag 12 by the airflow, and the sealing airbag 12 begins to expand. At this time, the ring 3 continues to move. At this time, with the cooperation of the sliding plate 17, the sealing airbag 12 and the charging port 2 are relatively stationary until the movement reaches the limit. At this time, the sealing airbag 12 is completely expanded, and the rubber guide frame 13 will be stuck in the empty slot 4. At this time, with the cooperation of the sealing airbag 1 2 can be expanded to perform effective sealing. While the sealing airbag 12 can effectively seal the charging interface 2 at the same time, the sealing airbag 12 will not move in the expanded state when performing sealing and contact sealing, which can effectively reduce the friction between the sealing airbag 12 and the surface of the charging interface 2. Normal sealing uses the elasticity of the rubber elastic component to perform extrusion sealing in a transitional fit state. Wear will inevitably occur during rotation, and long-term use will reduce the sealing effect. By setting it in place before expanding during sealing, the friction loss of the sealing airbag 12 is reduced, the service life is longer, and a good sealing effect is guaranteed while being able to cool and dissipate heat, and the protective performance is stronger.

[0039] The driving mechanism includes a driving motor 18 fixed to the side of the charging interface 2. The output shaft end of the driving motor 18 is fixedly connected to a driving gear. The surface of the ring 3 is provided with teeth that mesh with the driving gear. When the driving motor 18 rotates, the driving ring 3 rotates on the outer ring of the charging interface 2.

[0040] Two empty slots 4 are respectively opened above and below the charging interface 2 , and the two empty slots 4 form an airflow passage, which can dissipate heat and clean impurities inside the charging interface 2 at the same time.

[0041] The blowing hopper 9 and the sealing airbag 12 are both arranged on the same plane of the ring 3 and concentrically arranged with the slot 4. When the ring 3 rotates, the blowing hopper 9 and the sealing airbag 12 are always driven to move on the trajectory of the concentric circle between the surface of the charging interface 2 and the slot 4.

[0042] One side of the vehicle body 1 is connected to a fixed pipe 6 , and one side of the discharge channel 5 is connected to the fixed pipe 6 through a telescopic pipe 7 . Through the setting of the telescopic pipe 7 , the discharge channel 5 can continue to maintain communication with the fixed pipe 6 even when it moves.

[0043] A one-way outward-opening sealing valve is provided at the connection point between the fixed pipe 6 and the vehicle body 1 , through which internal impurities and hot air can be output in one direction, and external water vapor can be prevented from entering.

[0044] The inner cavity of the charging interface 2 is provided with a guide groove 20 connected to the discharge channel 5. Through the setting of the guide groove 20, sewage that may exist in the charging interface 2 will enter the discharge channel 5 and be discharged under the guidance of the guide groove 20.

[0045] The surface of the sealing airbag 12 is fixedly connected to a rubber guide frame 13 that is adapted to the inner cavity of the empty groove 4. When the ring 3 rotates to drive the sealing airbag 12 to rotate to one side of the empty groove 4, after it is rotated into place, the rubber guide frame 13 will be clamped in the empty groove 4. At this time, with the expansion of the sealing airbag 12, effective sealing can be performed.

[0046] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A thermal management device for a vehicle charging interface having a protective function, comprising a charging interface (2) disposed in an inner cavity of a vehicle body (1), wherein a collar (3) driven by a driving mechanism is rotatably connected to the surface of the charging interface (2), and characterized in that: One side of the collar (3) is connected to a blower (9) which is connected to an external air pump via an air inlet pipe (8); the other side of the collar (3) is provided with an exhaust channel (5); the inner cavity of the charging interface (2) is provided with two empty slots (4) corresponding to the positions of the blower (9) and the exhaust channel (5); the inner cavity of the collar (3) is provided with two sealing components for sealing the two empty slots (4); The sealing component comprises a telescopic airbag (15) fixed in the inner cavity of the collar (3) and a sliding groove (10) opened in the inner cavity of the collar (3); the inner cavity of the sliding groove (10) is slidably connected to a sliding plate (17); one side of the sliding plate (17) is fixedly connected to a sealing airbag (12); the sealing airbag (12) and the telescopic airbag (15) are connected via a connecting pipe (16); and the side of the charging interface (2) is fixedly connected to an extrusion plate (19) located on the side of the telescopic airbag (15).

2. The thermal management device with a protective function for a vehicle charging interface according to claim 1, characterized in that: The driving mechanism comprises a driving motor (18) fixed to the side of the charging interface (2); an output shaft end of the driving motor (18) is fixedly connected to a driving gear; and a surface of the collar (3) is provided with tooth patterns that mesh with the driving gear.

3. The thermal management device with a protective function for a vehicle charging interface according to claim 1, characterized in that: The two empty slots (4) are respectively opened above and below the charging interface (2).

4. The thermal management device with a protective function for a vehicle charging interface according to claim 1, characterized in that: The blowing hopper (9) and the sealing air bag (12) are both arranged on the same plane of the collar (3) and are concentric with the empty groove (4).

5. The thermal management device with a protective function for a vehicle charging interface according to claim 1, characterized in that: One side of the vehicle body (1) is connected to a fixed pipe (6), and one side of the discharge channel (5) is connected to the fixed pipe (6) via a telescopic pipe (7).

6. The thermal management device with a protective function for a vehicle charging interface according to claim 5, characterized in that: A sealing valve that opens outward in one direction is provided at the connection point between the fixed pipe (6) and the vehicle body (1).

7. The thermal management device with a protective function for a vehicle charging interface according to claim 1, characterized in that: The inner cavity of the charging interface (2) is provided with a guide groove (20) communicating with the discharge channel (5).

8. The thermal management device with a protective function for a vehicle charging interface according to claim 1, characterized in that: A rubber guide frame (13) adapted to the inner cavity of the hollow groove (4) is fixedly connected to the surface of the sealing airbag (12).

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