Circuit board safety protection device for AC-DC conversion charging seat of new energy automobile

Abstract

The utility model discloses a circuit board safety protection device for a new energy automobile AC-DC conversion charging seat, which comprises a charging seat main body and a circuit board integrated in the charging seat main body, and the charging seat main body comprises a lapping seat and an embedding seat. According to the charging base, the outer plate and the embedding base are fixed through the locking rod, the cover plate is turned over to be buckled with the buckling base, the cover plate can be stably erected at the open end of the connector, so that plugging of the charging base is achieved, damage to the circuit board caused by rainwater invasion is avoided, and once the cover plate and a corresponding connecting assembly are damaged, only the locking rod needs to be separated, and the charging base can be plugged. According to the circuit board safety protection device for the AC-DC conversion charging seat of the new energy automobile, the outer plate is independently separated, at the moment, the cover plate and a connecting assembly of the cover plate can be conveniently replaced, replacement of the whole lap joint seat is not needed, and therefore the use stability of the circuit board safety protection device for the AC-DC conversion charging seat of the new energy automobile is improved, and the maintenance cost of the circuit board safety protection device for the charging seat is reduced.

Description

Technical Field

[0001] This utility model relates to the field of AC / DC converter charging base technology for new energy vehicles, and in particular to a circuit board safety protection device for AC / DC converter charging bases for new energy vehicles. Background Technology

[0002] A new energy vehicle AC / DC converter charger, commonly known as an on-board charger, is a key power electronic device installed inside an electric vehicle. Its main function is to convert AC power from an external AC power source into DC power to charge the vehicle's high-voltage battery.

[0003] Chinese Patent Publication No. CN213184832U, published on 20210511, discloses an AC / DC charging converter for new energy vehicles, including a main housing with a DC-to-AC circuit having a DC input terminal and an AC output terminal inside the main housing; a DC charging socket and an AC charging plug disposed on the main housing, the DC charging socket being electrically connected to the DC input terminal and the AC charging plug being electrically connected to the AC output terminal; and a locking mechanism disposed on the main housing for locking the AC charging plug and the vehicle AC charging socket when the DC charging gun is charging the vehicle.

[0004] Existing AC / DC converter charging sockets for new energy vehicles often feature flip-up, snap-on protective covers to prevent rainwater intrusion and damage to the internal circuit boards. In practice, these protective covers consist of four main parts: a fixing base, a cover plate, a connecting base, and a buckle. The fixing base and connecting base are often integrally molded. If any part of the protective cover assembly is damaged, the entire assembly often needs to be replaced, resulting in high maintenance costs. Therefore, there is an urgent need to propose a corresponding circuit board safety protection device for AC / DC converter charging sockets for new energy vehicles to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a safety protection device for the circuit board of a new energy vehicle AC / DC converter charging base in order to solve the above problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A safety protection device for a circuit board of an AC / DC converter charging base for new energy vehicles includes a charging base body and a circuit board integrated inside the charging base body. The charging base body includes a base and a mounting base. An outer plate is detachably connected to the outer wall of the base. A cover plate and a buckle are integrated on the outer side of the outer plate, and the cover plate and the buckle are snapped together.

[0008] Preferably, the outer wall of the outer panel is fixedly connected to a fixing seat and a connecting seat. The outer wall of the fixing seat is rotatably connected to the cover plate via a rotating shaft, and the outer wall of the connecting seat is rotatably connected to the buckle via an elastic rotating shaft.

[0009] Preferably, a locking rod is provided inside the outer plate, and the locking rod is screwed into the inner surface wall of the support.

[0010] Preferably, an outer strip overlaps the outer wall of the outer plate, the locking rod passes through the outer strip, and an isolation part for isolating the locking rod is provided on the outer side of the outer strip.

[0011] Preferably, the isolation part includes a slide rod and a pressure strip that are fixedly connected. A spring is fixedly connected between the slide rod and the inner surface wall of the outer strip, and the pressure strip overlaps the outer surface wall of the outer strip.

[0012] Preferably, a rubber pad is fixedly connected to the bottom of the pressure strip.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, the outer plate and the mounting base are fixed by a locking rod. The cover plate is flipped to engage with the buckle, and the cover plate can be stably mounted on the open end of the connector to seal the charging base, thereby preventing rainwater from entering and damaging the circuit board. If the cover plate and its corresponding connecting components are damaged, the locking rod can be separated and the outer plate can be separated independently. At this time, the cover plate and its connecting components can be easily replaced without replacing the entire mounting base. This improves the stability of the safety protection device for the circuit board of the AC / DC converter charging base for new energy vehicles while reducing the maintenance cost of the safety protection device for the circuit board of the charging base.

[0015] 2. In this application, the outer strip overlaps the outer side of the outer panel. When the pressure strip is pulled upward, the pressure strip is linked to the sliding rod and stretches the spring, thus passing the locking rod through the outer strip and the outer panel. After being screwed into the mounting base, the pressure strip is released. The pressure strip isolates the locking rod, thereby ensuring the detachable connection between the outer panel and the mounting base while ensuring the airtightness of the connection between the locking rod and the outer panel. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of the fixing base structure provided according to an embodiment of the present utility model is shown;

[0018] Figure 3 A schematic diagram of the outer panel structure according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram of the pressure strip structure provided according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Charging base body; 101. Mounting base; 102. Embedded base; 2. Outer panel; 3. Fixing base; 4. Connecting base; 5. Cover plate; 6. Buckle base; 7. Outer strip; 8. Pressure strip; 9. Slide rod; 10. Locking rod. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A safety protection device for a circuit board of a new energy vehicle AC / DC converter charging base includes a charging base body 1 and a circuit board integrated inside the charging base body 1. The charging base body 1 includes a mounting base 101 and a mounting base 102. An outer plate 2 is detachably connected to the outer wall of the mounting base 101. A cover plate 5 and a buckle 6 are integrated on the outer side of the outer plate 2, and the cover plate 5 and the buckle 6 are snapped together.

[0025] The outer plate 2 is fixed to the mounting base 101 by locking rod 10. The cover plate 5 is flipped to engage with the buckle 6. The cover plate 5 can be stably mounted on the open end of the connector to seal the charging base and prevent rainwater from entering and damaging the circuit board. If the cover plate 5 and its corresponding connecting components are damaged, the locking rod 10 can be separated and the outer plate 2 can be separated independently. At this time, the cover plate 5 and its connecting components can be easily replaced without replacing the entire mounting base 101. This improves the stability of the circuit board safety protection device for AC / DC converter charging bases of new energy vehicles and reduces the maintenance cost of the circuit board safety protection device for charging bases.

[0026] Specifically, such as Figure 2 and Figure 4As shown, a fixing seat 3 and a connecting seat 4 are fixedly connected to the outer wall of the outer panel 2. The outer wall of the fixing seat 3 is rotatably connected to the cover plate 5 through a rotating shaft. The outer wall of the connecting seat 4 is rotatably connected to the buckle 6 through an elastic rotating shaft. The cover plate 5 can be stably mounted on the open end of the connector to seal the charging socket and prevent rainwater from entering and damaging the circuit board. A locking rod 10 is inserted inside the outer panel 2. The locking rod 10 is screwed into the inner wall of the mounting seat 101 to ensure convenient disassembly and assembly of the outer panel 2.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, an outer strip 7 overlaps the outer wall of the outer panel 2. The locking rod 10 passes through the outer strip 7, and an isolation part for isolating the locking rod 10 is provided on the outer side of the outer strip 7. The isolation part includes a slide rod 9 and a pressure strip 8 that are fixedly connected. A spring is fixedly connected between the slide rod 9 and the inner wall of the outer strip 7, and the pressure strip 8 overlaps the outer wall of the outer strip 7. The outer strip 7 overlaps the outer side of the outer panel 2. When the pressure strip 8 is pulled upward, the pressure strip 8 links the slide rod 9 and stretches the spring, thus allowing the locking rod 10 to pass through the outer strip 7 and the outer panel 2. After being screwed into the mounting base 101, the pressure strip 8 is released. The pressure strip 8 isolates the locking rod 10, thereby ensuring the detachable connection between the outer panel 2 and the mounting base 101 while ensuring the airtightness of the connection between the locking rod 10 and the outer panel 2. A rubber pad is fixedly connected to the bottom of the pressure strip 8 to further ensure the airtightness of the connection between the pressure strip 8 and the outer strip 7.

[0028] Working principle: The outer plate 2 is fixed to the mounting base 101 by the locking rod 10. The cover plate 5 is flipped to engage with the buckle 6, allowing it to be stably mounted on the open end of the connector, thus sealing the charging base and preventing rainwater intrusion that could damage the circuit board. If the cover plate 5 or its corresponding connecting components are damaged, simply separate the locking rod 10 and the outer plate 2 independently. This allows for easy replacement of the cover plate 5 and its connecting components without replacing the entire mounting base 101, thereby improving the AC / DC conversion efficiency of new energy vehicles. While ensuring the stability of the circuit board safety protection device for the charging dock, the maintenance cost of the circuit board safety protection device for the charging dock is reduced. The outer strip 7 overlaps the outer side of the outer plate 2. Pulling the pressure strip 8 upward causes the pressure strip 8 to link with the sliding rod 9 and stretch the spring, thus passing the locking rod 10 through the outer strip 7 and the outer plate 2, and then screwing it into the mounting base 101. After releasing the pressure strip 8, the pressure strip 8 isolates the locking rod 10, thereby ensuring the detachable connection between the outer plate 2 and the mounting base 101, while also ensuring the airtightness of the connection between the locking rod 10 and the outer plate 2.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety protection device for a circuit board in an AC / DC converter charging base for new energy vehicles, comprising a charging base body (1) and a circuit board integrated inside the charging base body (1), characterized in that, The charging base body (1) includes a stand (101) and a base (102). The outer wall of the stand (101) is detachably connected to an outer plate (2). The outer side of the outer plate (2) is integrated with a cover plate (5) and a buckle (6), and the cover plate (5) and the buckle (6) are snapped together.

2. The safety protection device for the circuit board of a new energy vehicle AC / DC converter charging socket according to claim 1, characterized in that, The outer wall of the outer plate (2) is fixedly connected to a fixing seat (3) and a connecting seat (4). The outer wall of the fixing seat (3) is rotatably connected to the cover plate (5) via a rotating shaft. The outer wall of the connecting seat (4) is rotatably connected to the buckle (6) via an elastic rotating shaft.

3. The safety protection device for the circuit board of a new energy vehicle AC / DC converter charging socket according to claim 2, characterized in that, A locking rod (10) is inserted inside the outer plate (2), and the locking rod (10) is screwed into the inner wall of the seat (101).

4. The safety protection device for the circuit board of a new energy vehicle AC / DC converter charging socket according to claim 3, characterized in that, The outer plate (2) has an outer strip (7) overlapping its outer wall, the locking rod (10) passes through the outer strip (7), and the outer side of the outer strip (7) is provided with an isolation part for isolating the locking rod (10).

5. A safety protection device for a circuit board of an AC / DC converter charging socket for new energy vehicles according to claim 4, characterized in that, The isolation part includes a slide rod (9) and a pressure strip (8) that are fixedly connected. A spring is fixedly connected between the slide rod (9) and the inner wall of the outer strip (7), and the pressure strip (8) overlaps the outer wall of the outer strip (7).

6. A safety protection device for a circuit board of an AC / DC converter charging socket for new energy vehicles according to claim 5, characterized in that, A rubber pad is fixedly connected to the bottom of the pressure strip (8).

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