Built-in electric vehicle charging structure

Abstract

The utility model discloses a built-in electric vehicle charging structure which comprises a charger and a seat cask, a storage cavity is arranged in the seat cask, a charging port connected with an electric vehicle storage battery and a charger fixing area corresponding to the charger are arranged in the storage cavity, and the charger is detachably connected in the charger fixing area. The side wall of the storage cavity is provided with an air exchange port communicated with the outside and a wire groove for an external wire harness of the charger to pass through in a penetrating mode. The charger can be arranged in the seat barrel and is electrically connected with a charging port of a storage battery of the electric vehicle and an external power supply through an external wire harness, so that the storage and anti-theft functions of the charger are realized, a user can charge the electric vehicle without additionally carrying the charger when going out, and the travel convenience is improved; the shielding protection of the charger is also realized, and the erosion of external impurities to the charger is reduced; and exchange between air in the seat cask and outside air is achieved through the air exchange port, heat dissipation of the charger in the storage cavity is facilitated, and the service life of the charger is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of charger especially relates to a built-in electric vehicle charging structure. BACKGROUND

[0002] With the wide use of electric two-wheel vehicles, users' requirements for the use convenience and safety of electric two-wheel vehicle chargers are continuously improved. In the existing market, the charger and the electric vehicle are independently arranged. On the one hand, the traditional independent charger is large in size and long in line, and is difficult to store. The space of some small electric vehicles or other devices is limited, and it is not convenient to carry the charger when going out. On the other hand, the traditional independent charger is mostly exposed to the outdoor environment, and is easily eroded by rain, dust and other impurities, which affects the service life of the charger and even causes safety problems such as short circuit. At the same time, the charger generates a large amount of heat during charging. If the heat dissipation is poor, the internal components of the charger will be damaged by heat, the aging speed of the charger will be accelerated, and the service life will be reduced. Therefore, improvement is needed. SUMMARY

[0003] The utility model provides a new built-in electric vehicle charging structure to solve the defects of the prior art, such as large space occupation, inconvenience of storage, easy erosion by impurities due to long-term exposure to the external environment, poor heat dissipation, and impact on the service life of the charger.

[0004] To solve the above technical problems, the utility model realizes the following technical scheme:

[0005] A built-in electric vehicle charging structure includes a charger and a seat bucket. The seat bucket has a storage cavity. The storage cavity is provided with a charging port connected to the electric vehicle battery and a charger fixing area corresponding to the charger. The charger is detachably connected in the charger fixing area. The side wall of the storage cavity has a ventilation opening communicating with the outside and a wire slot for the external wire harness of the charger.

[0006] The charger can be built-in in the seat bucket. The charger is electrically connected to the charging port of the electric vehicle battery and the external power source through the external wire harness, so as to not only facilitate the storage of the charger and realize the anti-theft function of the charger, but also allow the user to charge the electric vehicle without carrying the charger when going out, improving the convenience of travel. The charger is also shielded and protected, reducing the erosion of the charger by external impurities and facilitating use. The exchange of gas in the seat bucket and the outside is realized through the ventilation opening, facilitating the heat dissipation of the charger in the storage cavity and prolonging the service life of the charger.

[0007] As a preferred, the above-mentioned built-in electric vehicle charging structure, the charger fixing area includes a positioning wall formed by the partial inward extension of the side walls on both sides of the storage cavity, and the positioning wall acts on the charger for left and right direction limiting.

[0008] The positioning wall is provided with a buckle plate extending into the storage cavity, and the buckle plate and the bottom wall of the storage cavity form up and down direction limiting for the charger.

[0009] The charger fixing area is provided with a positioning protrusion acting on the front side of the charger, and the positioning protrusion is located on the bottom wall of the storage cavity, and the positioning protrusion and the side wall of the storage cavity form front and rear direction limiting for the charger.

[0010] Through the positioning protrusion, the positioning wall and the buckle plate, the charger is stably fixed in the charger fixing area, the stability of the charger during riding is improved, and the charger is prevented from colliding due to bumping.

[0011] As a preferred, the above-mentioned built-in electric vehicle charging structure, the charger includes a housing, a circuit board and a fan located in the housing, and the housing is provided with a ventilation window on both sides corresponding to the positioning wall, and when the fan works, an air flow passing through the circuit board is formed between the two ventilation windows; the air exchange port is at least two, and is located at the positioning wall corresponding to the ventilation window.

[0012] Because the ventilation window and the air exchange port are opposite, the heat generated by the charger during work can be accurately discharged outward through the ventilation window and the air exchange port by the fan, so that the internal heat dissipation of the charger is effectively realized, the heat dissipation of the charger is further improved, and the service life of the charger is prolonged.

[0013] As a preferred, the above-mentioned built-in electric vehicle charging structure, the positioning protrusion has a certain elastic deformation amount, which is used to avoid the charger entering and exiting the charger fixing area after deformation.

[0014] The positioning protrusion has a certain elastic deformation amount, so that when the charger is put into or taken out of the charger fixing area, the avoidance effect can be achieved, and the smoothness of the charger when disassembling in the seat barrel is improved.

[0015] As a preferred, the above-mentioned built-in electric vehicle charging structure, the charger is provided with a power-on switch, and the charger fixing area is provided with a power-on switch triggering device, when the charger enters the charger fixing area and completes the limiting of front and rear, left and right, and up and down directions, the power-on switch triggering device is coupled with the power-on switch and triggers the charger to start working.

[0016] Through the cooperation of the power-on switch and the power-on switch triggering device, the charger can only work after being placed in the correct position, improving the safety during use.

[0017] As a preferred, the above-mentioned built-in electric vehicle charging structure, the power-on switch adopts a Hall sensor, and the power-on switch triggering device adopts an inductive magnetic sheet.

[0018] The Hall effect of the Hall sensor and the inductive magnetic sheet is used to control the opening and closing of the charger, which has the advantages of simple structure, easy integration and maintenance, high safety, and fast response.

[0019] As a preferred, the above-mentioned built-in electric vehicle charging structure, the charger further comprises a transformer, a first heat sink and a second heat sink, the transformer is electrically connected with the circuit board, the first heat sink is arranged above the transformer, and the second heat sink is arranged on the upper surface of the circuit board.

[0020] The first heat sink and the second heat sink can timely export the heat generated by the transformer and the circuit board, and the first heat sink arranged above the transformer can more effectively dissipate the heat of the transformer in the charger.

[0021] As a preferred, the above-mentioned built-in electric vehicle charging structure, the bottom of the shell is provided with a plurality of pads and a plurality of limiting columns for fixing the circuit board, the pads and the limiting columns support the lower end of the circuit board, the bottom of the shell is provided with a partition plate between the circuit board and the fan, the upper end of the partition plate is higher than the upper end of the circuit board, and the partition plate, the shell and the circuit board surround to form a glue filling area on both sides of the circuit board, and the glue filling area is filled with insulating heat-conducting glue.

[0022] The circuit board is suspended in the shell by the pads and the limiting columns, and the insulating heat-conducting glue is filled in the glue filling area to reinforce the circuit board and facilitate the export of the heat generated by the circuit board, further improving the heat dissipation of the charger.

[0023] As a preferred, the above-mentioned built-in electric vehicle charging structure, the shell comprises an upper cover and a lower cover, the end corner of the lower cover is provided with a wire clamping notch for the external wire harness of the charger to pass out, the upper cover is provided with a cover wire plate inserted into the wire clamping notch, and the cover wire plate is pressed on the external wire harness of the charger.

[0024] The wire clamping notch and the cover wire plate realize the pressing and fixing of the external wire harness on the charger, and the wire clamping notch also increases the space for the exchange of air between the inside of the shell and the outside, facilitating the heat dissipation of the charger.

[0025] As preferred, the above-mentioned built-in electric vehicle charging structure, the bottom of the charger is provided with an arc-shaped plate, the arc-shaped plate is arched towards the direction close to the partition plate, and the outer side of the arc-shaped plate is attached to the partition plate, the partition plate, the arc-shaped plate and the inner wall of the shell surround to form a mounting area, the fan is located in the mounting area, and the sidewall of the arc-shaped plate is provided with a blowing port communicated with the mounting area.

[0026] The mounting area can limit the fan, and the arc-shaped plate and the blowing port can facilitate the circulation of the gas in the shell, and the heat dissipation performance of the charger is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the utility model;

[0028] Figure 2 It is a sectional view of the charger mounted in the charger fixing area of the utility model;

[0029] Figure 3 It is a sectional view of the utility model seat barrel;

[0030] Figure 4 It is an exploded structural schematic view of the charger of the utility model;

[0031] Figure 5 It is an exploded structural schematic view of the charger of the utility model from another angle;

[0032] Figure 6 It is a sectional view of the charger of the utility model.

[0033] The reference signs are explained as follows: 1, charger; 10, shell; 100, air vent; 101, upper cover; 102, lower cover; 11, circuit board; 111, power-on switch; 12, fan; 13, transformer; 14, first heat sink; 15, second heat sink; 16, arc-shaped plate; 161, blowing port; 2, seat barrel; 21, storage cavity; 22, air exchange port; 23, wire slot; 3, charger fixing area; 31, positioning wall; 311, buckle plate; 32, positioning protrusion; 33, power-on switch triggering device; 4, cushion block; 41, limiting column; 42, partition plate; 5, glue filling area; 6, wire clamping notch; 7, cover wire plate; 8, mounting area. DETAILED DESCRIPTION

[0034] The utility model will be described in further detail below in combination with the drawings Figures 1-6 and specific embodiments, but they are not limitations on the utility model:

[0035] Example 1

[0036] Reference Figures 1 to 3As shown, the utility model discloses a kind of built-in electric vehicle charging structure, including charger 1 and the seat bucket 2 located below electric vehicle seat stool, the seat bucket 2 is with storage cavity 21, there is the charging port connected with electric vehicle battery and the charger fixing area 3 for fixing charger 1 in storage cavity 21, and there is the air exchange port 22 for communicating with outside and the wire slot 23 for the external wiring harness of charger 1 through in the lateral wall of storage cavity 21, the air exchange port 22 is used for the heat dissipation of air circulation inside and outside storage cavity 21.

[0037] Above, the external wiring harness of charger 1 includes the input line and output line of charger 1. Among them, charger 1 and charger fixing area 3 adopt detachable connection, and the output line of charger 1 is connected with the above charging port.

[0038] When charger 1 is placed in storage cavity 21, charger 1 is fixed in charger fixing area 3, and its input line is led out to the outside of storage cavity 21 through wire slot 23, for connecting external power supply. It can be used for outdoor charging, prevent rainwater from invading charger 1, and also can play the role of charger 1 theft prevention.

[0039] When charger 1 is placed outside storage cavity 21, its output line is led into the inside of storage cavity 21 through wire slot 23, for connecting charging port.

[0040] In some embodiments, to limit the position of charger 1 in storage cavity 21, charger 1 is in a specific position each time charging.

[0041] As shown in Figure 2 , As shown in Figure 3 , charger fixing area 3 includes positioning wall 31 formed by the partial inward extension of the lateral wall of storage cavity 21, and positioning wall 31 acts on charger 1 for left-right direction limiting; positioning wall 31 is provided with buckle plate 311 extending into storage cavity 21, and buckle plate 311 and the bottom wall of storage cavity 21 form up-down direction limiting for charger 1; charger fixing area 3 is provided with positioning protrusion 32 acting on the front side of charger 1, positioning protrusion 32 is located on the bottom wall of storage cavity 21, and positioning protrusion 32 and the lateral wall of storage cavity 21 form front-rear direction limiting for charger 1.

[0042] As shown in Figures 2-5 , to avoid that heat dissipation in storage cavity 21 is insufficient, resulting in safety hazard of charger 1 overheating. Charger 1 includes shell 10, circuit board 11 and fan 12 located in shell 10, and both sides of shell 10 corresponding to positioning wall 31 are provided with air-permeable window 100.

[0043] When the fan 12 is working, an air flow is formed between the two air vents 100 to pass through the circuit board 11. Meanwhile, the air exchange openings 22 on the side wall of the storage cavity 21 are at least two and are arranged at the positioning wall 31 corresponding to the air vents 100.

[0044] To facilitate the detachable connection between the charger 1 and the charger fixing area 3, the positioning protrusion 32 has a certain elastic deformation amount, which is used to avoid the charger 1 entering and exiting the charger fixing area 3 after deformation.

[0045] In some embodiments, to avoid the charger 1 starting to work when the air vents 100 and the air exchange openings 22 of the storage cavity 21 are not aligned, affecting heat dissipation, as shown in Figure 2 、 Figure 3 、 Figure 5 The power-on switch 111 is arranged in the charger 1, and the power-on switch triggering device 33 is arranged in the charger fixing area 3.

[0046] When the charger 1 enters the charger fixing area 3 and completes the limiting in the front-rear, left-right, and up-down directions, the power-on switch triggering device 33 is coupled with the power-on switch 111 and triggers the charger 1 to start working. Thus, it is ensured that the charger 1 starts to work only after the air vents 100 and the air exchange openings 22 are aligned, improving the safety during use.

[0047] Further, the power-on switch 111 adopts a Hall sensor, and the power-on switch triggering device 33 adopts an inductive magnetic sheet. The power-on switch 111 and the power-on switch triggering device 33 can also adopt an NFC coil and an NFC module.

[0048] When the charger 1 is placed outside the storage cavity 21 for charging, the user can directly hold a card with an NFC coil or an inductive magnetic sheet to directly start the charger 1.

[0049] When the charger 1 is placed in the storage cavity 21, the inner wall of the storage cavity 21 will interfere with the arrangement of the input line and the output line of the charger 1 due to the limiting of the charger fixing area 3 on the circumference of the charger 1. In some embodiments, as shown in Figure 2 、 Figure 4 The output line and the input line of the charger 1 are located at the front end of the charger 1, and a wire clamping notch 6 for the input line is arranged on the side of the input line of the charger 1. The wire clamping notch 6 is located at the corner of the charger 1, partially communicates with the front side of the charger 1, and partially communicates with the side of the charger 1 abutting against the side wall of the storage cavity 21. In order to fix the input line, a wire cover plate 7 is arranged at the corner of the charger 1. The wire cover plate 7 is L-shaped, is inserted into the wire clamping notch 6, and is pressed on the top of the input line.

[0050] More specifically, as shown in Figure 4 、 Figure 6As shown, the bottom of the shell 10 is provided with several pads 4 and several limiting posts 41 for fixing the circuit board 11, the pads 4 and the limiting posts 41 support the lower end of the circuit board 11, the bottom of the shell 10 is provided with a partition plate 42 between the circuit board 11 and the fan 12, the upper end of the partition plate 42 is higher than the upper end of the circuit board 11, and the shell 10, the circuit board 11 and the partition plate 42 surround to form a glue filling area 5 on the upper and lower sides of the circuit board 11, and the glue filling area 5 is filled with insulating and heat-conducting glue.

[0051] The insulating and heat-conducting glue in the glue filling area 5 can fix the circuit board 11 and protect the circuit board 11 from being short-circuited due to water vapor condensation, and can also evenly heat the circuit board 11 as a whole, thereby further improving the heat dissipation of the charger 1.

[0052] The inner wall of the shell 10 is also integrally formed with a reinforcing rib in a grid shape, which reinforces the shell 10 and prevents the insulating and heat-conducting glue in the glue filling area 5 from deforming due to temperature rise after solidification.

[0053] As shown in Figures 4-6 The charger 1 further comprises a transformer 13, a first heat sink 14 and a second heat sink 15, the transformer 13 is electrically connected to the circuit board 11, the first heat sink 14 is fixed above the transformer 13, and the second heat sink 15 is fixed on the upper surface of the circuit board 11.

[0054] The charger 1 is integrally formed with an arc-shaped plate 16 between the partition plate 42 and the wire clamping notch 6, the arc-shaped plate 16 is arched towards the partition plate 42 and the outer side of the arc-shaped plate 16 is attached to the partition plate 42, the partition plate 42, the arc-shaped plate 16 and the inner wall of the shell 10 surround to form a mounting area 8, the fan 12 is located in the mounting area 8, and the sidewall of the arc-shaped plate 16 is provided with a blowing port 161 communicating with the mounting area 8.

[0055] Further, the bottom of the mounting area 8 is provided with a bottom support, the lower end of the fan 12 is in contact with the bottom support, and the fan 12 is supported and limited by the bottom support, preventing the fan 12 from shaking inside the charger 1. The fan 12 and the charger 1 can adopt a contact type structure, and the fan 12 is powered by contact conduction; or a coil can be electrically connected to the fan 12 inside the charger 1, and the fan 12 is powered by electromagnetic induction.

[0056] The arc-shaped plate 16 and the blowing port 161 facilitate the circulation of gas in the shell 10, the second heat sink 15 is provided in two and arranged in the length direction on the upper surface of the circuit board 11, and the second heat sink 14 and the second heat sink 15 cooperate with the fan 12 to quickly discharge the heat generated during the operation of the charger 1, thereby further improving the heat dissipation of the charger 1.

[0057] In the description of the present application, it should be understood that the terms "front and back", "left and right", "up and down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore should not be construed or implied as indicating or suggesting that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as a limitation on the specific position of the charger 1 in the toilet bowl 2.

[0058] In summary, the above is only a preferred embodiment of the present application, and any equivalent changes and modifications made within the scope of the application for patent of the present application shall be included in the scope of the present application.

Claims

1. A built-in electric vehicle charging structure, comprising a charger (1) and a seat bucket (2) with a storage cavity (21) in the seat bucket (2), characterized in that: The storage cavity (21) is provided with a charging port connected with an electric vehicle battery and a charger fixing area (3) corresponding to the charger (1), the charger (1) is detachably connected in the charger fixing area (3), and the side wall of the storage cavity (21) is provided with a ventilation opening (22) communicated with the outside and a wire slot (23) for the external wire harness of the charger (1).

2. The built-in electric vehicle charging structure of claim 1, wherein: The charger fixing area (3) comprises a positioning wall (31) formed by the partial inward extension of the side walls on both sides of the storage cavity (21), and the positioning wall (31) acts on the charger (1) to limit the left-right direction of the charger (1). The positioning wall (31) is provided with a buckle plate (311) extending into the storage cavity (21), and the buckle plate (311) and the bottom wall of the storage cavity (21) limit the charger (1) in the up-down direction. The charger fixing area (3) is provided with a positioning protrusion (32) acting on the front side of the charger (1), the positioning protrusion (32) is located on the bottom wall of the storage cavity (21), and the positioning protrusion (32) and the side wall of the storage cavity (21) limit the charger (1) in the front-rear direction.

3. The built-in electric vehicle charging structure of claim 2, wherein: The charger (1) comprises a shell (10), a circuit board (11) and a fan (12) in the shell (10), the shell (10) is provided with a ventilation window (100) on both sides corresponding to the positioning wall (31), and an air flow passing through the circuit board (11) is formed between the two ventilation windows (100) when the fan (12) works; the ventilation opening (22) is at least two, and is arranged corresponding to the ventilation window (100) at the positioning wall (31).

4. The built-in electric vehicle charging structure of claim 2, wherein: The positioning protrusion (32) has a certain elastic deformation amount, which is used to avoid the charger (1) entering and exiting the charger fixing area (3) after deformation.

5. The built-in electric vehicle charging structure of claim 2, wherein: The charger (1) is provided with a power-on switch (111), the charger fixing area (3) is provided with a power-on switch triggering device (33), when the charger (1) enters the charger fixing area (3) and is limited in the front-rear, left-right and up-down directions, the power-on switch triggering device (33) is coupled with the power-on switch (111) and triggers the charger (1) to start working.

6. An electric vehicle charging structure according to claim 5, wherein: The power-on switch (111) is a Hall sensor, and the power-on switch triggering device (33) is an induction magnetic sheet.

7. The built-in electric vehicle charging structure of claim 3, wherein: The charger (1) further comprises a transformer (13), a first heat sink (14) and a second heat sink (15), the transformer (13) is electrically connected with the circuit board (11), the first heat sink (14) is arranged above the transformer (13), and the second heat sink (15) is arranged on the upper surface of the circuit board (11).

8. The built-in electric vehicle charging structure of claim 3, wherein: The bottom of the shell (10) is provided with several pads (4) and several limiting posts (41) for fixing the circuit board (11), the pads (4) and the limiting posts (41) support the lower end of the circuit board (11), the bottom of the shell (10) is provided with a partition plate (42) between the circuit board (11) and the fan (12), the upper end of the partition plate (42) is higher than the upper end of the circuit board (11), and the shell (10), the circuit board (11) and the partition plate (42) surround a glue filling area (5) on the upper and lower sides of the circuit board (11), and the glue filling area (5) is filled with insulating and heat-conducting glue.

9. An inbuilt electric vehicle charging structure as claimed in claim 8, wherein: The shell (10) comprises an upper cover (101) and a lower cover (102), the end corner of the lower cover (102) is provided with a wire clamping notch (6) for the external wire harness of the charger (1) to pass out, and the upper cover (101) is provided with a cover wire plate (7) inserted into the wire clamping notch (6), and the cover wire plate (7) is pressed on the external wire harness of the charger (1).

10. The built-in electric vehicle charging structure of claim 9, wherein: The bottom of the charger (1) is provided with an arc-shaped plate (16), the arc-shaped plate (16) is arched towards the direction close to the partition plate (42), and the outer side of the arc-shaped plate (16) is attached to the partition plate (42), the partition plate (42), the arc-shaped plate (16) and the inner wall of the shell (10) surround a mounting area (8), the fan (12) is located in the mounting area (8), and the sidewall of the arc-shaped plate (16) is provided with a blowing port (161) in communication with the mounting area (8).

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