Vehicle-mounted power supply inverter

Abstract

The utility model discloses a vehicle-mounted power supply inverter, which comprises a vehicle-mounted power supply inverter shell, a vehicle-mounted power supply inverter circuit board, a heat conduction sheet, a heat conduction pipe, a heat radiation fin assembly and a heat radiation fan, and is characterized in that the vehicle-mounted power supply inverter circuit board is horizontally arranged in the vehicle-mounted power supply inverter shell; the heat-conducting fin is attached to the vehicle-mounted power supply inverter circuit board, and a plurality of heat-conducting pipes are arranged on one side, far away from the vehicle-mounted power supply inverter circuit board, of the heat-conducting fin. The device overcomes the defects that in the prior art, a fan is directly used for accelerating air circulation for heat dissipation, the heat dissipation efficiency of the mode is limited, generated heat cannot be dissipated in time when the device outputs some high-power electric appliances, and then the device is burnt out. According to the vehicle-mounted power supply inverter, heat in the inverter body can be conducted out in time, and then heat dissipation is carried out through the fan.

Description

Technical Field

[0001] The utility model relates to the technical field of inverters, and in particular to a vehicle-mounted power inverter. Background Art

[0002] The inverter converts DC power (battery, storage battery) into AC power (usually 220V, 50Hz sine wave). It consists of an inverter bridge, control logic and filter circuit. It is widely used in air conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. In foreign countries, due to the high penetration rate of cars, inverters can be used to connect batteries to drive electrical appliances and various tools when working or traveling. The car inverter output through the cigarette lighter has a power specification of 20W, 40W, 80W, 120W to 150W. A larger power inverter power supply must be connected to the battery through a connecting line. By connecting household appliances to the output end of the power converter, various electrical appliances can be used in the car. The available electrical appliances include: mobile phones, laptops, digital cameras, cameras, lighting, electric shavers, CD players, game consoles, PDAs, power tools, car refrigerators and various travel, camping, medical emergency appliances, etc.

[0003] Chinese patent CN213305277U discloses a bidirectional power inverter. The function of two cooling fans is that when the heat generated by the inverter body during operation cannot be discharged quickly, the staff can use the cooling fans to speed up the air circulation, thereby facilitating faster discharge of the heat generated by the inverter body during operation from the inverter housing.

[0004] The applicant discovered the following technical problems when implementing the above technical solution:

[0005] The device directly uses a fan to speed up the circulation of air for heat dissipation. This method has limited heat dissipation efficiency, resulting in the device being unable to dissipate the heat in time when outputting some high-power electrical appliances, which in turn causes the device to burn out.

[0006] Therefore, providing a vehicle-mounted power inverter that can timely output the heat in the inverter body and then dissipate the heat by a fan is an urgent problem to be solved by the present invention. Utility Model Content

[0007] In view of the above technical problems, the purpose of the utility model is to overcome the existing technology that the device directly uses a fan to speed up the circulation of air for heat dissipation. This method has limited heat dissipation efficiency, resulting in the device being unable to dissipate the heat in time when outputting some high-power electrical appliances, thereby causing the device to burn out. Thus, a vehicle-mounted power inverter is provided that can timely output the heat in the inverter body and then dissipate the heat by a fan.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a vehicle-mounted power inverter, which includes: a vehicle-mounted power inverter housing, a vehicle-mounted power inverter circuit board, a heat conductive sheet, a heat conductive pipe, a heat dissipation fin assembly and a heat dissipation fan. The vehicle-mounted power inverter circuit board is horizontally arranged in the vehicle-mounted power inverter housing, the heat conductive sheet is fitted on the vehicle-mounted power inverter circuit board, and a plurality of heat conductive pipes are arranged on a side away from the vehicle-mounted power inverter circuit board, and a heat dissipation fin assembly is arranged on one end of each heat conductive pipe away from the heat conductive sheet, the heat dissipation fan is arranged in the vehicle-mounted power inverter housing, and its air outlet is arranged toward the heat dissipation fin assembly, and a heat dissipation port adapted to the air outlet of the heat dissipation fan is arranged on one side of the vehicle-mounted power inverter housing.

[0009] Preferably, the heat dissipation fin assembly comprises a plurality of wavy heat dissipation fins arranged at intervals, and the heat dissipation fan air outlet is arranged toward the gaps between the wavy heat dissipation fins.

[0010] Preferably, the heat dissipation port is horizontally spaced apart with a plurality of wind and dust shielding plates, and the outer side of each wind and dust shielding plate is tilted downward.

[0011] Preferably, a plurality of socket openings are provided through one side of the vehicle power inverter housing, and a conductive sheet adapted thereto is provided in each socket opening. One side of each conductive sheet extending into the vehicle power inverter housing is connected to the same connecting strip, and the end of the connecting strip away from the conductive sheet is electrically connected to the vehicle power inverter circuit board.

[0012] Preferably, a plurality of fast charging ports are provided on one side of the vehicle power inverter housing, and each fast charging port extends into one side of the vehicle power inverter housing and is connected to the same fast charging module circuit board, and the fast charging module circuit board is electrically connected to the vehicle power inverter circuit board through a wire.

[0013] Preferably, a cover plate adapted to the maintenance opening thereof is detachably provided on one side of the vehicle-mounted power inverter housing.

[0014] Preferably, a plug electrically connected to the internal vehicle power inverter circuit board is provided on one side of the vehicle power inverter housing.

[0015] Preferably, the plug is compatible with the socket of a car cigarette lighter.

[0016] According to the above technical scheme, the beneficial effect of the utility model compared with the prior art is: the application uses a heat conducting sheet to guide the heat generated on the vehicle power inverter circuit board to the heat dissipation fin assembly through a heat conducting pipe, and with the operation of the heat dissipation fan, the heat dissipation fin assembly is cooled, and the hot air flow is blown out from the heat dissipation port, thereby improving the heat dissipation efficiency and extending the service life of the vehicle power inverter circuit board. The heat conducting pipe and the heat dissipation fin assembly can quickly conduct and dissipate the heat, and the heat dissipation fan can accelerate the air flow, effectively reduce the temperature of the power inverter, and ensure its normal operation.

[0017] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation mode; and the parts not involved in the utility model are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 It is a stereoscopic diagram of a vehicle-mounted power inverter provided in a preferred embodiment of the utility model.

[0020] Figure 2 It is a partial stereoscopic diagram of a vehicle power inverter provided in a preferred embodiment of the utility model. Figure 1 .

[0021] Figure 3 It is a three-dimensional vehicle power inverter provided in a preferred embodiment of the utility model. Figure 2 .

[0022] Figure 4 It is a planar cross-sectional view of a vehicle-mounted power inverter provided in a preferred embodiment of the utility model.

[0023] Figure 5 It is a partial stereoscopic diagram of a vehicle power inverter provided in a preferred embodiment of the utility model. Figure 1 .

[0024] Figure 6 It is a partial stereoscopic diagram of a vehicle power inverter provided in a preferred embodiment of the utility model. Figure 2 .

[0025] Explanation of the accompanying drawings: 1-vehicle power inverter housing; 101-heat dissipation port; 102-wind and dust shield; 103-socket port; 104-fast charging port; 105-maintenance opening; 2-vehicle power inverter circuit board; 3-heat conductive sheet; 4-heat conductive pipe; 5-heat sink fin assembly; 501-wavy heat sink fin; 6-cooling fan; 7-conductive sheet; 8-connecting strip; 9-fast charging module circuit board; 10-cover plate; 11-plug. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, if the terms "first", "second", "third" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Reference Figure 2-Figure 6: A vehicle-mounted power inverter, the vehicle-mounted power inverter comprising: a vehicle-mounted power inverter housing 1, a vehicle-mounted power inverter circuit board 2, a heat conductive sheet 3, a heat conductive pipe 4, a heat dissipation fin assembly 5 and a cooling fan 6, the vehicle-mounted power inverter circuit board 2 is horizontally arranged in the vehicle-mounted power inverter housing 1, the heat conductive sheet 3 is fitted on the vehicle-mounted power inverter circuit board 2, and a plurality of heat conductive pipes 4 are arranged on the side away from the vehicle-mounted power inverter circuit board 2, each of the heat conductive pipes 4 is arranged at one end away from the heat conductive sheet 3 with a heat dissipation fin assembly 5, the cooling fan 6 is arranged in the vehicle-mounted power inverter housing 1, and its air outlet is arranged toward the heat dissipation fin assembly 5, and a heat dissipation port 101 adapted to the air outlet of the cooling fan 6 is arranged on one side of the vehicle-mounted power inverter housing 1.

[0031] The present application uses a heat conducting sheet 3 to guide the heat generated on the vehicle power inverter circuit board 2 to the heat dissipation fin assembly 5 through a heat conducting pipe 4, and with the operation of a heat dissipation fan 6, the heat dissipation fin assembly 5 is cooled, and the hot air flow is blown out from the heat dissipation port 101, thereby improving the heat dissipation efficiency and extending the service life of the vehicle power inverter circuit board 2. The heat conducting pipe 4 and the heat dissipation fin assembly 5 can quickly conduct and dissipate the heat, while the heat dissipation fan 6 can accelerate the air flow, effectively reduce the temperature of the power inverter, and ensure its normal operation.

[0032] Reference Figure 5 The heat dissipation fin assembly 5 includes a plurality of wavy heat dissipation fins 501 arranged at intervals, and the air outlet of the heat dissipation fan 6 is arranged toward the gaps between the wavy heat dissipation fins 501.

[0033] The design of the wavy heat dissipation fins 501 of the present application can increase the contact surface area with the heat flow and the hot air flow rate, further improving the heat dissipation efficiency. By arranging the air outlet of the heat dissipation fan 6 toward the gap between the wavy heat dissipation fins 501, the hot air can be effectively blown into the gap between each heat dissipation fin, thereby increasing the heat dissipation effect.

[0034] Reference Figure 3 The heat dissipation port 101 is horizontally spaced apart with a plurality of wind and dust shielding plates 102, and the outer side of each wind and dust shielding plate 102 is tilted downward.

[0035] The downwardly inclined outer side of the wind and dust shield 102 of the present application can effectively block dust and debris in the air from entering the heat dissipation port 101, prevent dust from clogging the heat dissipation port 101, and at the same time, keep the heat dissipation port 101 unobstructed, thereby improving the heat dissipation effect.

[0036] Reference Figure 3-Figure 5: A plurality of socket openings 103 are provided on one side of the vehicle power inverter housing 1, and a conductive sheet 7 adapted thereto is provided in each socket opening 103. One side of each conductive sheet 7 extending into the vehicle power inverter housing 1 is connected to the same connecting strip 8, and the end of the connecting strip 8 away from the conductive sheet 7 is electrically connected to the vehicle power inverter circuit board 2.

[0037] The present application sets up a plurality of socket ports 103 to facilitate the connection of electrical equipment with plugs 11. The plugs 11 are inserted into the socket ports 103, electrically connected to each plug 11 through the conductive sheet 7, and electrically connected to the vehicle-mounted power inverter circuit board 2 through the connecting strip 8, thereby realizing power supply.

[0038] Reference Figure 3-Figure 5 : Several fast charging ports 104 are arranged on one side of the vehicle power inverter housing 1, and each fast charging port 104 extends into one side of the vehicle power inverter housing 1 and is connected to the same fast charging module circuit board 9, and the fast charging module circuit board 9 is electrically connected to the vehicle power inverter circuit board 2 through a wire.

[0039] The present application provides a plurality of fast charging ports 104 to facilitate the connection of electrical devices with fast charging heads, and electrically connects the fast charging module circuit board 9 with the vehicle power inverter circuit board 2 to achieve power supply.

[0040] Reference Figure 1 and Figure 2 : A cover plate 10 adapted to its maintenance opening 105 is detachably provided on one side of the vehicle-mounted power inverter housing 1.

[0041] A detachable cover plate 10 is provided on one side of the vehicle power inverter housing 1 of the present application. This design allows the user to easily remove the cover plate 10 for maintenance, repair or replacement operations.

[0042] Reference Figure 1 : A plug 11 electrically connected to the vehicle power inverter circuit board 2 inside the vehicle power inverter housing 1 is provided on one side of the vehicle power inverter housing 1.

[0043] The present application connects the power source through the plug 11 to supply power to the vehicle power inverter circuit board 2 .

[0044] Reference Figure 1 : The plug 11 is compatible with the socket of the car cigarette lighter.

[0045] The present application uses a plug 11 adapted to the socket of a car cigarette lighter so as to be inserted into the socket of a tram cigarette lighter to supply power to the vehicle power inverter circuit board 2 .

[0046] When the device provided by the utility model is in use, the heat generated on the vehicle power inverter circuit board 2 is guided to the heat dissipation fin assembly 5 through the heat conducting sheet 3 and the heat conducting fin assembly 5 through the heat conducting pipe 4, and the heat dissipation fan 6 is operated to cool the heat dissipation fin assembly 5, and the hot air flow is blown out from the heat dissipation port 101, thereby improving the heat dissipation efficiency and extending the service life of the vehicle power inverter circuit board 2. The heat conducting pipe 4 and the heat dissipation fin assembly 5 can quickly conduct and dissipate the heat, and the heat dissipation fan 6 can accelerate the air flow, effectively reduce the temperature of the power inverter, and ensure its normal operation.

[0047] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0049] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A vehicle-mounted power inverter, characterized in that: The vehicle-mounted power inverter comprises: a vehicle-mounted power inverter housing (1), a vehicle-mounted power inverter circuit board (2), a heat conducting sheet (3), a heat conducting pipe (4), a heat dissipation fin assembly (5) and a heat dissipation fan (6); the vehicle-mounted power inverter circuit board (2) is horizontally arranged in the vehicle-mounted power inverter housing (1); the heat conducting sheet (3) is arranged on the vehicle-mounted power inverter circuit board (2), and a plurality of heat conducting pipes (4) are arranged on the side away from the vehicle-mounted power inverter circuit board (2); each heat conducting pipe (4) is arranged on the end away from the heat conducting sheet (3) of the heat dissipation fin assembly (5); the heat dissipation fan (6) is arranged in the vehicle-mounted power inverter housing (1), and its air outlet is arranged toward the heat dissipation fin assembly (5); and a heat dissipation port (101) matching the air outlet of the heat dissipation fan (6) is arranged on one side of the vehicle-mounted power inverter housing (1).

2. The vehicle-mounted power inverter according to claim 1, characterized in that: The heat dissipation fin assembly (5) comprises a plurality of wavy heat dissipation fins (501) arranged at intervals, and the air outlet of the heat dissipation fan (6) is arranged toward the gaps between the wavy heat dissipation fins (501).

3. The vehicle-mounted power inverter according to claim 1, characterized in that: The heat dissipation opening (101) is provided with a plurality of wind and dust shielding plates (102) at intervals horizontally, and the outer side of each wind and dust shielding plate (102) is arranged to be inclined downward.

4. The vehicle-mounted power inverter according to claim 1, characterized in that: A plurality of socket openings (103) are provided through one side of the vehicle power inverter housing (1), and a conductive sheet (7) adapted thereto is provided in each socket opening (103). One side of each conductive sheet (7) extending into the vehicle power inverter housing (1) is connected to the same connecting strip (8), and one end of the connecting strip (8) away from the conductive sheet (7) is electrically connected to the vehicle power inverter circuit board (2).

5. The vehicle-mounted power inverter according to claim 1, characterized in that: A plurality of fast charging ports (104) are provided on one side of the vehicle power inverter housing (1); each fast charging port (104) extends into one side of the vehicle power inverter housing (1) and is connected to a fast charging module circuit board (9); and the fast charging module circuit board (9) is electrically connected to the vehicle power inverter circuit board (2) via a wire.

6. The vehicle-mounted power inverter according to claim 1, characterized in that: A cover plate (10) adapted to the maintenance opening (105) is detachably provided on one side of the vehicle-mounted power inverter housing (1).

7. The vehicle-mounted power inverter according to claim 1, characterized in that: A plug (11) electrically connected to the on-board power inverter circuit board (2) inside the on-board power inverter housing (1) is provided on one side of the on-board power inverter housing (1).

8. The vehicle-mounted power inverter according to claim 7, characterized in that: The plug (11) is compatible with the socket of the automobile cigarette lighter.

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