CN215774019U - Double-layer water-cooled vehicle-mounted all-in-one device - Google Patents

Abstract

The utility model discloses a double-layer water-cooled vehicle-mounted all-in-one device, which comprises a shell; the heat dissipation substrate assembly is arranged on the inner side of the shell and forms a double-layer water channel with the shell; the power module, power module is including setting up on-vehicle power supply circuit board, film capacitor, the IGBT module in double-deck water course to and set up in the OBC circuit board of casing bottom, can heat convection heat dissipation through leading-in liquid to this double-deck water course. According to the utility model, the plurality of control devices are combined, and the structural form of the double-layer water channel is designed by utilizing the heat dissipation substrate assembly, so that cooling liquid is introduced for heat dissipation, the device has a compact structure, the total volume of the controller can be reduced, the space of the whole automobile is saved, and more degrees of freedom are provided for the light weight and the structural design of the automobile.

Description

Double-layer water-cooled vehicle-mounted all-in-one device

Technical Field

The utility model relates to the technical field of water cooling devices of electric vehicles, in particular to a double-layer water-cooled vehicle-mounted all-in-one device.

Background

Besides a driving motor for driving wheels to run, the new energy electric automobile also comprises auxiliary parts such as a steering motor, an inflating motor, a DC/DC and a high-voltage distribution box. In addition to the drive motor controller, the electric vehicle with these accessories is also equipped with accessory controllers such as a steering DC/AC, an inflation DC/AC, a DC/DC, a high voltage distribution box, and an insulation tester. There are generally two types of solutions available on the market: the driving motor controller is separated from each accessory controller, and the other is an integrated all-in-one motor controller. Compare discrete combination controller, the controller compact structure is unified to integration more, can reduce the total volume of controller to save the space of whole car, provide more degrees of freedom for the lightweight of car and structural design. Meanwhile, the integrated all-in-one controller reduces external wiring among discrete controllers, reduces fault points, saves cost, improves product reliability, and is the development direction of new energy electric vehicles in the future.

At present, an all-in-one controller usually comprises a plurality of high-power modules, and the automobile is developed towards light weight, so that the requirement on a cooling system of the all-in-one controller is higher. When a high-power module is used, the requirement of the device on the heat dissipation performance is very high, so how to improve the heat dissipation efficiency is also an urgent problem to be solved by the all-in-one controller.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and in order to realize the aim, the utility model adopts a double-layer water-cooling vehicle-mounted all-in-one device to solve the problems in the background technology.

The utility model provides a double-deck water-cooled on-vehicle all in one device, includes:

a housing;

the heat dissipation substrate assembly is arranged on the inner side of the shell and forms a double-layer water channel with the shell;

the power module, power module is including setting up on-vehicle power supply circuit board, film capacitor, the IGBT module in double-deck water course to and set up in the OBC circuit board of casing bottom, can heat convection heat dissipation through leading-in liquid to this double-deck water course.

As a further aspect of the utility model: the heat dissipation substrate assembly comprises a first heat dissipation substrate and a second heat dissipation substrate.

As a further aspect of the utility model: the first radiating substrate is provided with a plurality of substrate turbulence columns, and the substrate turbulence columns extend into the double-layer water channel.

As a further aspect of the utility model: the double-layer water channel comprises a liquid inlet water channel and a liquid outlet water channel, and the liquid outlet water channel is formed by combining a first heat dissipation substrate and the shell.

As a further aspect of the utility model: the end part of the liquid inlet channel is provided with a water inlet, and the liquid outlet channel is provided with a water outlet.

As a further aspect of the utility model: the IGBT module is provided with a module turbulence column.

Compared with the prior art, the utility model has the following technical effects:

through adopting foretell technical scheme, utilize to make up a plurality of power modules and controller module into the device of unifying more of integration, set up the base plate subassembly of dispelling the heat again to through forming double-deck water course with the casing, thereby can follow the leading-in coolant liquid of water inlet, form the circulation thermal convection in inside, the coolant liquid flows from the delivery port again and takes away heat energy. Therefore, after a plurality of high-power modules are integrated, the automobile is developed towards the direction of light weight. Meanwhile, the high heat dissipation rate of the device is improved. And the integrated all-in-one device has the advantages of cost saving and product reliability.

Drawings

The following detailed description of embodiments of the utility model refers to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of an on-board all-in-one device according to some embodiments disclosed herein;

FIG. 2 is a cross-sectional view of the in-vehicle all-in-one apparatus disclosed herein at A of FIG. 1;

FIG. 3 is a schematic perspective view of an in-vehicle all-in-one apparatus according to some embodiments disclosed herein;

FIG. 4 is a schematic bottom-inside view of an in-vehicle all-in-one device according to some embodiments of the disclosure;

fig. 5 is a schematic structural diagram of a second heat-dissipating substrate according to some embodiments of the present disclosure;

FIG. 6 is a schematic diagram of a double-deck raceway according to some embodiments of the present disclosure.

In the figure: 1. a housing; 2. a heat-dissipating substrate assembly; 21. a first heat dissipation substrate; 211. a substrate turbulence column; 22. a second heat dissipation substrate; 3. a double-layer water channel; 31. a liquid inlet channel; 311. a water inlet; 32. a liquid outlet channel; 321. a water outlet; 4. a power module; 41. a vehicle-mounted power supply circuit board; 42. a thin film capacitor; 43. an IGBT module; 431. a modular turbulence column; 44. an OBC circuit board.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, a two-layer water-cooled vehicle-mounted all-in-one apparatus includes:

a housing 1;

a heat dissipation substrate assembly 2, wherein the heat dissipation substrate assembly 2 is arranged inside the shell 1 and forms a double-layer water channel 3 with the shell 1;

as shown in fig. 1, 3 and 4, the power module 4 includes an on-vehicle power supply circuit board 41, a thin film capacitor 42, an IGBT module 43, and an OBC circuit board 44, which are disposed in the double-layer water channel 3, and is disposed at the bottom end of the housing 1, and can dissipate heat by convection by introducing liquid into the double-layer water channel 3.

In some embodiments, as shown in fig. 1 and 5, the thermal dissipation substrate assembly 2 includes a first thermal dissipation substrate 21 and a second thermal dissipation substrate 22. The first heat dissipation substrate 21 is provided with a plurality of substrate turbulence columns 211 for further improving heat dissipation efficiency, and the plurality of substrate turbulence columns 211 extend into the double-layer water channel 3. As shown in fig. 2 and 6, the double-layer water channel 3 includes a liquid inlet channel 31 and a liquid outlet channel 32, and the liquid outlet channel 32 is formed by combining the first heat dissipation substrate 21 with the housing 1. The end of the liquid inlet channel 31 is provided with a water inlet 311, and the liquid outlet channel 32 is provided with a water outlet 321.

In some embodiments, the IGBT module 43 is provided with a module turbulence column 431. Thereby increasing the heat dissipation efficiency of the module.

The working principle is as follows:

heat is dissipated through the formed double-layer water channel 3 and the heat dissipation substrate assembly 2. The main heat transfer path is from the power device to the heat dissipation substrate to the cooling liquid, the heat dissipation form from the power device to the heat dissipation substrate is solid-to-solid heat conduction, and the heat dissipation form from the heat dissipation substrate to the cooling liquid is solid-to-liquid heat convection.

The heat convection calculation formula is: q ═ h × a × (Tp-Ta);

in the above formula, Q represents the heat dissipation amount, h represents the heat exchange coefficient, A represents the heat exchange area, and Tp-Ta represents the temperature difference.

As can be seen from the above equation, the heat exchange area a is proportional to the heat dissipation amount Q. According to the heat dissipation principle, a certain number of turbulence columns are added on the heat dissipation substrate, so that the heat exchange area A can be increased, and the heat dissipation performance of the heat convection propagation path of the device is improved, thereby effectively improving the heat dissipation efficiency of the device.

The working process is as follows:

as shown in fig. 6, the coolant enters the liquid inlet channel 31 through the water inlet 311, and the liquid inlet channel 31 flows through the film capacitor 42 and below the on-board power supply circuit board 41 and above the OBC circuit board 44. Then, the water outlet channel 32 formed by the first heat dissipation substrate 21 and the housing 1 passes through the module flow disturbing column 431 of the IGBT module 43 and finally flows out of the water outlet 321, so that the whole cooling and heat dissipation process is formed. The first heat dissipation base plate 21 connects the independent water channels to each other, and forms the heat dissipation double-layer water channel 3 on the premise of ensuring the processability. Satisfy the heat dissipation of a plurality of power module 4 simultaneously, promoted the lightweight of radiating efficiency simultaneously realization device greatly.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a double-deck water-cooled on-vehicle device that unifies more which characterized in that includes:

a housing (1);

a heat dissipation substrate assembly (2) which is arranged at the inner side of the shell and forms a double-layer water channel (3) with the shell;

power module (4), power module is including setting up on-vehicle power supply circuit board (41), film capacitor (42), IGBT module (43) in double-deck water course to and set up in OBC circuit board (44) of casing bottom, through leading-in liquid can the thermal convection heat dissipation to this double-deck water course.

2. The vehicle-mounted all-in-one device with double water cooling layers as claimed in claim 1, wherein the heat dissipation substrate assembly comprises a first heat dissipation substrate (21) and a second heat dissipation substrate (22).

3. The vehicle-mounted all-in-one device with double-layer water cooling as claimed in claim 2, wherein the first heat-dissipating substrate is provided with a plurality of substrate turbulence columns (211), and the plurality of substrate turbulence columns extend into the double-layer water channel.

4. The vehicle-mounted all-in-one device with double-layer water cooling function according to claim 3, wherein the double-layer water channel comprises a water inlet channel (31) and a water outlet channel (32), and the water outlet channel is formed by combining the first heat dissipation base plate and the shell.

5. The double-layer water-cooled vehicle-mounted all-in-one device is characterized in that a water inlet (311) is formed in the end portion of the liquid inlet channel, and a water outlet (321) is formed in the liquid outlet channel.

6. The vehicle-mounted all-in-one device with double-layer water cooling as claimed in claim 1, wherein the IGBT module is provided with a module turbulence column (431).

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