Integrated water channel heat dissipation motor controller power module

Abstract

The utility model discloses an integrated water channel heat radiation motor controller power module, comprising an upper water channel, a lower water channel, an SIC power module, an integrated capacitor and an MOS control assembly, a boss type positioning column is arranged in the upper water channel, and the SIC power module is arranged above the upper water channel; the longitudinal section of the lower-layer water channel is of an L-shaped multi-channel structure; branch channel external power module water inlets and outlets, a cylinder, a blocking rib and a water channel are respectively designed in the middle and at the outlet of the channel; the integrated capacitor is fixed between the upper-layer water channel and the lower-layer water channel; water channels in the upper-layer water channel and the lower-layer water channel are connected; a water inlet and a water outlet are connected outside the lower-layer water channel, and the water inlet is connected with a bifurcated channel in the lower-layer water channel and enters the upper-layer water channel and the lower-layer water channel respectively; the MOS control assembly is fixed to the transverse side face of the upper-layer water channel through a positioning pressing block. According to the utility model, an integrated water channel heat radiation structure design is used, cooling liquid is controlled to enter the upper and lower water channels, and heat radiation can be carried out for different power devices.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, especially relates to an integrated water channel heat dissipation motor controller power module. BACKGROUND

[0002] In the process of realizing electricization, motor controller is an indispensable cornerstone in the process of electricization, and its development is particularly rapid in recent years. So far, integrated motor controller has become the mainstream trend in the industry. The development direction of motor controller is to integrate functional devices into a shell, thereby realizing the interaction of various functions and achieving the effect of the joint action of multiple split modules. However, the trend of high integration of integrated motor controller leads to a geometric increase in the difficulty of heat dissipation of internal power devices, and various professional fields have contributed to the problem of heat dissipation.

[0003] The utility model patent with publication number "CN221176211U" "A heat dissipation structure, a power module, and a motor controller" discloses that a plurality of heat dissipation fins are arranged in the heat dissipation flow channel, and the heat dissipation flow channel is arranged in sequence and is spaced apart, dividing it into a plurality of branch flow channels connected in parallel, and supplemented by a unique power module for heat dissipation.

[0004] The utility model patent with publication number "CN118338632A" "Motor controller heat dissipation mechanism and motor controller" discloses a surrounding water channel design, in which the water channel enters the upper power module from the front, flows into the bottom from the back, and then flows out, achieving the effect of heat dissipation in both the upper and lower layers.

[0005] The utility model patent with publication number "CN219352226U" "Motor controller heat dissipation structure" discloses an air cooling structure, which designs a heat dissipation tooth mechanism on the upper surface of the controller, and the cold air extracted by the fan is taken away from the heat dissipation tooth mechanism, achieving the effect of heat dissipation.

[0006] However, the heat dissipation mode of the water channel heat dissipation structure disclosed in the above-mentioned patents is fixed, and cannot perform multi-level heat dissipation. It can only dissipate heat for a certain functional device, and the heat dissipation capacity is general. Moreover, with the further development of integration, the heat dissipation design for power devices is more important. SUMMARY

[0007] In order to overcome the above-mentioned problems, the utility model provides an integrated water channel heat dissipation motor controller power module.

[0008] The utility model discloses a technical scheme for: an integrated water channel heat dissipation motor controller power module, including upper water channel, lower water channel, SIC power module, integrated capacitor and MOS control assembly, the upper water channel whole design is flat plate type, is equipped with the boss type locating post in the inside, for positioning the SIC power module of setting up above the upper water channel, the longitudinal section of lower water channel is the multichannel structure of L type, and the bifurcated channel, external power module water inlet, external power module water outlet, cylinder, blocking rib and water channel are designed respectively in the middle and the export of channel, and the external power module water inlet sets up on the bifurcated channel, and the external power module water outlet sets up on the water channel formed by cylinder and blocking rib, the upper water channel and the lower water channel combination form the U type structure of three open sides, and the integrated capacitor is fixed in the middle of upper water channel and lower water channel, the water channel in the inside of the upper water channel and the lower water channel is connected, the external connection water inlet and water outlet of lower water channel, the water inlet is connected with the bifurcated channel in the inside of lower water channel, and enters upper water channel and lower water channel respectively, and the MOS control assembly is fixed through the locating pressure block of upper water channel horizontal lateral side.

[0009] Further, the upper water channel has an "arch" shaped structure 203; the upper water channel is provided with an inwardly upwardly inclined 15-45 degree inner inclination.

[0010] Further, the SIC power module is gap-fitted with the upper water channel through the "T" shaped limiting pressure block made of aluminum alloy or stainless steel material, and the movement of the SIC power module is limited.

[0011] Further, the limiting pressure block is provided with a cylindrical block above the limiting pressure block, and the cylindrical block provides support for the remaining devices of the upper layer.

[0012] Further, the opening side of the integrated capacitor is assembled with the SIC power module through the flanged copper bar.

[0013] Further, the locating pressure block is of a "drawer type" structure, and the horizontal rib 502 on the MOS control assembly is used for fixing the MOS control assembly and enhancing the performance of the locating pressure block.

[0014] The utility model has the beneficial effects that:

[0015] 1. The utility model uses an integrated water channel heat dissipation structure design, controls the cooling liquid to enter the upper and lower two water channels, and can dissipate heat for different power devices.

[0016] 2. The utility model uses an integrated scheme design, integrates the double-layer water channel, the capacitor, the SIC power device and the MOS control assembly, and has a smaller volume. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1is the structure schematic view in the utility model;

[0018] Figure 2 is the waterway sectional view in the utility model;

[0019] Figure 3 is the upper waterway plan view in the utility model;

[0020] Figure 4 is the upper waterway bottom view in the utility model;

[0021] Figure 5 is the structure schematic view of SIC power module in the utility model;

[0022] Figure 6 is the structure schematic view of integrated capacitor in the utility model;

[0023] Figure 7 is the structure schematic view of MOS control assembly in the utility model;

[0024] Figure 8 is the lower waterway bottom view in the utility model;

[0025] In the drawing: 101 - water inlet, 102 - water outlet, 2 - upper waterway, 201 - inner inclination angle, 202 - boss type positioning column, 203 - "arch" structure, 3 - SIC power module, 301 - limiting pressure block, 302 - cylindrical block, 4 - integrated capacitor, 401 - flange type copper bar, 5 - MOS control assembly, 501 - positioning pressure block, 502 - horizontal rib, 6 - lower waterway, 601 - bifurcated channel, 602 - external power module water inlet, 603 - external power module water outlet, 604 - cylinder, 605 - blocking rib, 606 - waterway. DETAILED DESCRIPTION

[0026] The utility model will be further explained in connection with the drawings.

[0027] As Figure 1 And Figure 2 The utility model discloses an integrated waterway heat dissipation motor controller power module, including upper waterway 2, lower waterway 6, SIC power module 3, integrated capacitor 4 and MOS control assembly 5, wherein the upper waterway 2 is designed as a flat plate as a whole, and has the waterway of "arch" structure 203, and the boss type positioning column 202 is designed inside, guaranteeing the positioning of SIC power module 3, as Figure 3 And Figure 4 The upper waterway 2 is provided with the SIC power module 3 encapsulated by DCM above, as Figure 5As shown, the SIC power module 3 is fitted with an upper water channel 2 via a clearance fit using a T-shaped limiting block 301 made of aluminum alloy or stainless steel, restricting the movement of the SIC power module 3. A cylindrical block 302 above the limiting block 301 provides support for the remaining components in the upper layer. The upper water channel 2 has an inward tilt angle 201 of 15-45 degrees, which can be used to fix the SIC power module 3 and increase water resistance, increasing the water flow time in the channel. The lower water channel 6 has an L-shaped longitudinal section, and the upper water channel 2 and lower water channel 6 combine to form a U-shaped structure with three open sides. The water channels inside the upper water channel 2 and lower water channel 6 are connected. The lower water channel 6 is externally connected to an inlet 101 and an outlet 102. The inlet 101 is connected to a branching channel 601 inside the lower water channel 6, and the water enters the upper water channel 2 and the lower water channel 6 respectively.

[0028] An integrated capacitor 4 is fixed between the upper water channel 2 and the lower water channel 6. The integrated capacitor 4 is fixed to the upper water channel 2 by screws. The integrated capacitor 4 has an open structure, with a flanged copper busbar 401 on the open side for assembly with the SiC power module 3. Figure 6 As shown.

[0029] The upper waterway 2 has its MOS control component 5 fixed to its lateral side by positioning blocks 501, such as... Figure 7 As shown, the positioning block 501 has a "drawer-type" structure, and the horizontal rib 502 on the MOS control component 5 serves to fix the MOS control component 5 and enhance the performance of the positioning block 501.

[0030] like Figure 8 As shown, the lower water channel 6 has a multi-channel structure. The middle and outlet of the channel are designed with a branching channel 601, an external power module inlet 602, an external power module outlet 603, a cylinder 604, a baffle 605, and a water channel 606, respectively. This increases the water flow time within the channel, enhancing heat dissipation capacity and also providing support for fixing other components. Cooling water flows in from the inlet 101 at a flow rate of no less than 30L / Min, enters the branching channel 601, and then successively enters the lower water channel 6 and the upper water channel 2. The increased flow resistance structure inside the water channel effectively increases the residence time of the coolant, ensuring sufficient heat dissipation for the heat-generating components. The coolant flows downwards into the lower water channel 6 at the branching channel 601, circulates through the external power module inlet 602, and then flows out through the external power module outlet 603. It then passes through the water channel 606 formed by the cylinder 604 and the baffle 605 to dissipate heat from the capacitor 4. The lower water channel 6 provides heat dissipation for the integrated capacitor 4 and the external power module. Cooling water enters the upper water channel 2 along the branch channel 601, passes through the flow resistance structure into the SiC power module 3, flows out along the heat dissipation teeth of the SiC power module 3 and returns to the cooling water channel, enters the heat dissipation structure design of the MOS component, and then flows out from the outlet 102 along the flow channel.

[0031] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various changes or replacements within the technical range disclosed in the present application, and these should be covered in the protection scope of the present application.

Claims

1. An integrated waterway cooling motor controller power module, comprising an upper waterway (2), a lower waterway (6), an SIC power module (3), an integrated capacitor (4) and a MOS control component (5), characterized in that: The upper water channel (2) is designed as a flat plate, and a boss type positioning column (202) is arranged in the upper water channel (2) for positioning the SIC power module (3) arranged above the upper water channel (2); the longitudinal section of the lower water channel (6) is a multi-channel structure of L type, and a bifurcated channel (601), an external power module water inlet (602), an external power module water outlet (603), a cylinder (604), a blocking rib (605) and a water channel (606) are arranged in the middle and at the outlet of the channel, the external power module water inlet (602) is arranged on the bifurcated channel (601), and the external power module water outlet (603) is arranged on the water channel (606) formed by the cylinder (604) and the blocking rib (605); the upper water channel (2) and the lower water channel (6) are combined to form a U-shaped structure with three open sides, and the integrated capacitor (4) is fixed in the middle of the upper water channel (2) and the lower water channel (6); the water channels in the upper water channel (2) and the lower water channel (6) are connected; the lower water channel (6) is connected with a water inlet (101) and a water outlet (102), the water inlet (101) is connected with the bifurcated channel (601) in the lower water channel (6) and enters the upper water channel (2) and the lower water channel (6) respectively, and the upper water channel (2) is fixed with the MOS control assembly (5) through the positioning pressing block (501) on the lateral side.

2. An integrated water-cooled motor controller power module according to claim 1, wherein: The upper water channel (2) has a "bow" shaped structure (203) in the water channel; the upper water channel (2) is provided with an inward upward inclined angle (201) of 15-45 degrees.

3. An integrated water-cooled motor controller power module according to claim 1, wherein: The SIC power module (3) is gap matched with the upper water channel (2) through the "T" type limiting pressing block (301) made of aluminum alloy or stainless steel, so as to limit the movement of the SIC power module (3).

4. An integrated water-cooled motor controller power module according to claim 3, wherein: The limiting pressing block (301) is provided with a cylindrical block (302) above, and the cylindrical block (302) provides support for the upper remaining devices.

5. An integrated water-cooled motor controller power module according to claim 1, wherein: The opening side of the integrated capacitor (4) is a flanged copper bar (401) assembled with the SIC power module (3).

6. An integrated water-cooled motor controller power module according to claim 1, wherein: The positioning pressing block (501) is a "drawer type" structure, and the horizontal rib (502) on the MOS control assembly (5) is used for fixing the MOS control assembly (5) and strengthening the performance of the positioning pressing block (501).

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