Heat dissipation structure for external discharger of new energy vehicle

Abstract

The utility model discloses a new energy vehicle external discharger heat dissipation structure, and specifically relates to the new energy vehicle technology field, the new energy vehicle external discharger heat dissipation structure comprises a housing, the housing is internally provided with an IGBT chip, a heat dissipation sheet, an upper layer PCB, and a heat dissipation assembly, the heat dissipation assembly comprises two plug panels fixedly connected with two ends of the housing respectively, an air inlet is formed in the side face of the plug panel on one side. According to the utility model, the circular fan and the second-stage fan are arranged, the IGBT chip is driven to work, the circular fan is further driven to rotate through the circuit, the left plug panel is provided with an inward-concave obliquely-upward view angle, a large-area heat dissipation air inlet can be vacated above a screen, and all circuits can be integrated on an upper-layer PCB through the stacking structure, so that the heat dissipation efficiency is greatly improved. And a good and smooth air duct environment is provided, so that the device can effectively realize heat dissipation of the discharger outside the new energy vehicle under a long-time high-power working condition, and the heat dissipation effect of the device is ensured while high-power output is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to a heat dissipation structure of an external discharger of a new energy vehicle. Background Art

[0002] The vehicle's built-in external discharge requires car companies to equip two-way OBC hardware. At present, there are still many brands and models that are not equipped with two-way OBC. Cost is the core of everything. Now the price war is in a white-hot stage where nothing is left. A mere 10 yuan BOM cost may be crucial. If there is another discharge, the hidden cost of after-sales service is another huge expense. In recent years, the scale of the domestic camping market has reached a new high. Data show that in 2022, the core / driven market scale of China's camping will be 113.5 billion yuan / 581.6 billion yuan respectively, a year-on-year increase of 51.74% / 52.57%. "Camping" occupies the current tourism market with its short distance, low aggregation, privacy and social interaction, convenient consumption, and strong experience. Camping consumption has formed a new normal, and the electrical appliances that need to be driven for camping are usually high-power electrical appliances, such as induction cookers, electric baking trays, outdoor air conditioners, etc. Therefore, a universal high-power new energy vehicle external discharge device is needed to adapt to 99% of new energy vehicles on the market without external discharge, so as to meet high-power power consumption scenarios such as camping and rescue.

[0003] When currently in use, the existing device generally dissipates heat from the external discharger by opening heat dissipation holes and cooperating with a heat dissipation fan. However, when in use, the heat dissipation duct of the existing device itself is easily affected by other factors such as the circuit, which easily leads to poor heat dissipation effect, thereby affecting the heat dissipation efficiency of the existing device and reducing the use effect of the external discharger. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a heat dissipation structure for an external discharger of a new energy vehicle, which solves the problem that the heat dissipation duct of the existing device is easily affected by other factors such as the circuit when in use, thereby easily resulting in poor heat dissipation effect, thereby affecting the heat dissipation efficiency of the existing device and reducing the use effect of the external discharger.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions: a heat dissipation structure of an external discharger of a new energy vehicle, comprising:

[0006] An outer shell, wherein an IGBT chip, a heat sink and an upper PCB board are respectively arranged in the outer shell;

[0007] The heat dissipation component includes two plug panels fixedly connected to the two ends of the shell, wherein an air inlet is provided on the side of one of the plug panels, and a screen is provided outside the plug panel on this side, and a start / stop button is provided outside the screen, and a circular fan is provided on the side of the plug panel on the other side, and two 16A sockets are provided on the side of the plug panel on this side.

[0008] As a further solution of the utility model: the heat dissipation assembly also includes a first-stage fan fixedly connected to the outer shell, and the heat dissipation assembly also includes a second-stage fan fixedly connected to the side of the plug panel close to the circular fan, and a groove is provided in the plug panel on this side, a gland is fixedly connected in the groove, and a sealing strip is provided outside the gland.

[0009] As a further solution of the utility model: the side surface of the IGBT chip is fixedly connected to the side surface of the heat sink, an upper PCB board is provided on the upper inner portion of the housing, and a stacking structure is provided inside the upper PCB board.

[0010] As a further solution of the utility model: a plurality of circuits are integrated in the stacking structure, and two installation grooves are arranged outside the shell.

[0011] As a further solution of the utility model: the shell is made of metal material, the four corners of the shell are rounded, and the plug panel on one side is concave and slanted upward.

[0012] As a further solution of the utility model: a grille is provided outside the heat sink, and the height of the grille is flush with the height of the air inlet.

[0013] As a further solution of the utility model: the heat sink is overlapped outside the first-stage fan, and the number of the IGBT chips is several.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The heat dissipation structure of the external discharger of the new energy vehicle drives the IGBT chip to work by setting a circular fan, an IGBT chip, a heat sink, a first-stage fan and a second-stage fan, and then drives the circular fan to rotate through the circuit. When the circular fan rotates, it can inhale the outside cold air through the air inlet and can quickly discharge the hot air. The left plug panel is made into an inward concave and upward angle, which can free up a large area of ​​heat dissipation air inlet above the screen, and the stacking structure can integrate all the circuits on an upper PCB board, providing a good and unobstructed air duct environment, so that the device can effectively dissipate the heat of the external discharger of the new energy vehicle under long-term high-power conditions, while maintaining high power output, ensuring the heat dissipation effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the plug panel of the utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of a 16A socket of the utility model;

[0020] Figure 4 It is a three-dimensional structural diagram of the IGBT chip of the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the upper PCB board of the utility model.

[0022] Description of reference numerals:

[0023] 1. Air inlet; 2. Screen; 3. Start / stop button; 4. Cable gland; 5. Round fan; 6. 16A socket; 7. IGBT chip; 8. Heat sink; 9. First-stage fan; 10. Second-stage fan; 11. Upper PCB board; 12. Casing; 13. Plug panel. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-Figure 4 A heat dissipation structure of an external discharger of a new energy vehicle shown in the figure comprises:

[0026] The housing 12 includes an IGBT chip 7, a heat sink 8 and an upper PCB board 11. The side of the IGBT chip 7 is fixedly connected to the side of the heat sink 8. The upper PCB board 11 is provided at the upper part of the housing 12. The upper PCB board 11 includes a stacking structure. By using the stacking structure, all circuits are integrated on an upper PCB board 11 and stacked on the upper layer of the inverter, thereby providing a good and unobstructed air duct environment for the lower layer.

[0027] Several circuits are integrated in the stacking structure. Two mounting slots are arranged outside the housing 12. The housing 12 is made of metal material. The four corners of the housing 12 are all rounded. The plug panel 13 on one side is concave and tilted upward. By making the left plug panel 13 concave and tilted upward, the interactive screen 2 can be moved down without affecting the viewing angle, and a large area of ​​heat dissipation air inlet 1 can be vacated on the top to increase the heat dissipation effect.

[0028] A grille is provided outside the heat sink 8, the height of the grille is flush with the height of the air inlet 1, the heat sink 8 is overlapped outside the first-stage fan 9, and the number of IGBT chips 7 is several;

[0029] The heat dissipation component includes two plug panels 13 respectively fixedly connected to the two ends of the housing 12, wherein an air inlet 1 is provided on the side of the plug panel 13 on one side, and a screen 2 is provided outside the plug panel 13 on the side, and a start / stop button 3 is provided outside the screen 2, and a circular fan 5 is provided on the side of the plug panel 13 on the other side. By providing the circular fan 5, two 16A high-power sockets can be placed in the corner position saved compared to the square fan, so that users can connect more high-power electrical appliances conveniently, thereby improving the use effect;

[0030] Two 16A sockets 6 are provided on the side of the plug panel 13 on this side. The heat dissipation assembly also includes a first-stage fan 9 fixedly connected to the housing 12. By providing the first-stage fan 9, the cold air sucked in by the air inlet 1 can be timely heat-exchanged with the heat sink 8;

[0031] The heat dissipation assembly also includes a second-stage fan 10 fixedly connected to the side of the plug panel 13 close to the circular fan 5. By setting the second-stage fan 10, the second-stage fan 10 can rotate at a high speed, and then the air with heat can be quickly discharged in time, thereby improving the heat dissipation efficiency of the device;

[0032] A groove is provided in the plug panel 13 on this side, which facilitates the plugging and unplugging of the 16A socket 6 on the right side, so that the two will not interfere with each other at the same time, and further improves the aesthetics;

[0033] A gland 4 is fixedly connected in the groove, and a sealing strip is arranged outside the gland 4.

[0034] The working principle of the utility model is:

[0035] When using the device, first connect the high-power electrical appliance to be used to the 16A socket 6, and then touch the start-stop button 3 to drive the IGBT chip 7 to work, and then enable the heat sink 8 to work continuously, and then drive the circular fan 5 to rotate through the circuit. When the circular fan 5 rotates, it can inhale the external cold air through the air inlet 1, and then when it reaches the heat sink 8 through the first-stage fan 9, the heat sink 8 will export the heat, and then the air with heat can be quickly discharged in time through the second-stage fan 10.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat dissipation structure for an external discharger of a new energy vehicle, characterized in that: include: A housing (12), wherein an IGBT chip (7), a heat sink (8) and an upper PCB board (11) are respectively arranged in the housing (12); A heat dissipation component, the heat dissipation component comprising two plug panels (13) respectively fixedly connected to two ends of a housing (12), wherein an air inlet (1) is provided on the side of one of the plug panels (13), and a screen (2) is provided outside the plug panel (13) on this side, and a start / stop button (3) is provided outside the screen (2), and a circular fan (5) is provided on the side of the plug panel (13) on the other side, and two 16A sockets (6) are provided on the side of the plug panel (13) on this side; The side surface of the IGBT chip (7) is fixedly connected to the side surface of the heat sink (8); an upper PCB board (11) is provided inside the upper part of the housing (12); and a stacking structure is provided inside the upper PCB board (11).

2. According to claim 1, a heat dissipation structure for an external discharger of a new energy vehicle is characterized in that: The heat dissipation component also includes a first-stage fan (9) fixedly connected to the housing (12), and the heat dissipation component also includes a second-stage fan (10) fixedly connected to the side of a plug panel (13) close to the circular fan (5), and the plug panel (13) on this side is provided with a groove, a gland (4) is fixedly connected in the groove, and a sealing strip is provided on the outside of the gland (4).

3. The heat dissipation structure of the external discharger of a new energy vehicle according to claim 1 is characterized in that: A plurality of circuits are integrated in the stacking structure, and two installation slots are arranged outside the housing (12).

4. The heat dissipation structure of the external discharger of a new energy vehicle according to claim 1 is characterized in that: The shell (12) is made of metal material, and the four corners of the shell (12) are all rounded, and the plug panel (13) on one side is concave and inclined upward.

5. The heat dissipation structure of the external discharger of a new energy vehicle according to claim 1 is characterized in that: The heat sink (8) is provided with a grille outside, and the height of the grille is flush with the height of the air inlet (1).

6. The heat dissipation structure of the external discharger of a new energy vehicle according to claim 2 is characterized in that: The heat sink (8) is overlapped outside the first-stage fan (9), and the number of the IGBT chips (7) is several.

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