Motor controller and automobile

Abstract

The utility model discloses a motor controller and an automobile, the motor controller comprises a support installed on a motor controller body, the support is provided with a water inlet and a water outlet, at least two first water channels and at least two second water channels are communicated between the water inlet and the water outlet, the number of the first water channels and the number of the second water channels are both at least two; the at least two first water channels are connected in parallel, the at least two second water channels are connected in parallel, and the first water channels and the second water channels are connected in series, so that cooling water synchronously flows through the at least two first water channels and then synchronously flows through the at least two second water channels under the condition that the power of the cooling water pump is kept to be certain; the cooling water flow provided by the cooling water pump can be averagely distributed by the at least two first water channels and the at least two second water channels, under the condition that the power of the cooling water pump is certain, the cooling effect on the motor controller can be improved, the power requirement for the cooling water pump is reduced, and the overall dynamic property of an automobile is improved.

Description

Technical Field

[0001] This application relates to the field of automotive equipment technology, and more specifically, to a motor controller and an automobile. Background Technology

[0002] Currently, as the power demand of automobile motors increases, the heat that the motor controller needs to dissipate during operation is also gradually increasing. However, the existing cooling structure has a poor cooling effect on the motor controller, and the power demand on the cooling water pump is gradually increasing, resulting in poor overall vehicle power performance.

[0003] In summary, how to reduce the power requirements of the cooling water pump and improve the cooling effect on the motor controller is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a motor controller and automobile that reduces the power requirement of the cooling water pump and improves the cooling effect of the motor controller.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A motor controller includes a cooling system and a motor controller body; wherein the cooling system includes a bracket, the bracket being mounted on the motor controller body; the bracket is provided with an inlet for introducing cooling water and an outlet for discharging cooling water; at least a first water channel and a second water channel are connected between the inlet and the outlet, and there are at least two first water channels and at least two second water channels; at least two first water channels are connected in parallel, at least two second water channels are connected in parallel, and the first water channels and the second water channels are connected in series.

[0007] In some embodiments, the inlet and the outlet are located at the same end along the extension direction of the first waterway or the second waterway; both the first waterway and the second waterway extend along a first direction.

[0008] In some embodiments, the bracket has a first diversion channel, the water inlet is connected to the first diversion channel, and the first diversion channel is connected to the water inlet of the first water channel; the first diversion channel extends along a second direction, and there is an angle between the first direction and the second direction.

[0009] In some embodiments, the support has a second diversion channel extending along the second direction; the outlet of the first water channel and the inlet of the second water channel are both connected to the second diversion channel.

[0010] In some embodiments, the bracket has a third diversion channel that connects to the outlet; the third diversion channel is connected to the outlet of the second water channel and extends along the second direction.

[0011] In some embodiments, the first diversion channel and the third diversion channel are both located at the first end of the first direction; the second diversion channel is located at the second end of the first direction.

[0012] In some embodiments, the motor controller body includes a first motor controller body and a second motor controller body; the first water channel is disposed in close contact with the first motor controller body and is used to cool the first motor controller body; the second water channel is disposed in close contact with the second motor controller body and is used to cool the second motor controller body.

[0013] In some embodiments, the bracket has mounting holes for mounting the bracket to the motor controller.

[0014] In some embodiments, the cooling system further includes a cooling water pump and a cooler.

[0015] An automobile includes a motor controller as described above.

[0016] The motor controller provided in this application includes a cooling system and a motor controller body. The cooling system includes a bracket mounted on the motor controller body. The bracket has an inlet for introducing cooling water and an outlet for discharging cooling water. At least a first water channel and a second water channel are connected between the inlet and the outlet. There are at least two first water channels and at least two second water channels. The at least two first water channels are connected in parallel, and the at least two second water channels are connected in parallel. The first water channels and the second water channels are connected in series. In this way, while keeping the power of the cooling water pump constant, the cooling water first flows synchronously through at least two first water channels and then synchronously through at least two second water channels. This allows the cooling water flow provided by the cooling water pump to be evenly distributed in both the at least two first water channels and the at least two second water channels. With a constant cooling water pump power, the cooling effect on the motor controller can be improved, the power requirement of the cooling water pump can be reduced, and the overall power performance of the vehicle can be improved. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cooling water flow direction in a motor controller in the prior art;

[0019] Figure 2 This is a schematic diagram of the cooling system structure provided in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the cooling water channel flow direction of the cooling system provided in the embodiments of this application;

[0021] Figure 4 A schematic diagram of a motor controller provided in an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Inlet, 2-First branch channel, 3-Second branch channel, 4-Third branch channel, 5-Outlet, 6-First water channel, 7-Second water channel, 8-Bracket, 9-Mounting hole, 10-Motor controller body. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise.

[0026] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0027] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0028] The terms "parallel" and "perpendicular" used in this application refer to "basically parallel" and "basically perpendicular" in practical operation. "Basically parallel" can be understood as parallelism with a certain degree of error, and similarly, "basically perpendicular" can be understood as perpendicularity with a certain degree of error.

[0029] like Figure 1 As shown, in the prior art, the cooling structure of a motor controller typically includes, for example, the cooling structure of a motor controller. Figure 1 The parallel structure shown in a, and as shown in Figure 1 In the series structure shown in diagram b, with a fixed cooling water pump power, for example, a total flow rate of 10 L / min, the flow rate through each channel in the parallel structure is only 2 L / min, resulting in a smaller cooling water flow rate in each channel and a poorer overall cooling effect. In the series structure, although all channels can flow at a rate of 10 L / min, the longer flow path leads to higher cooling water temperatures at the later stages of the channels, failing to achieve the desired cooling effect. Therefore, existing cooling structures typically increase the power of the cooling water pump to increase the total flow rate of cooling water, which results in poor vehicle performance and higher overall vehicle cost.

[0030] To address the aforementioned issues, this application provides a motor controller that reduces the power requirements of the cooling water pump and improves the cooling effect on the motor controller.

[0031] like Figure 2As shown in the embodiment of this application, the motor controller includes a cooling system and a motor controller body. The cooling system includes a bracket 8 for mounting the cooling system to the motor controller body 10, so that the bracket 8 can be in contact with the heat dissipation part of the motor controller body 10 to achieve cooling of the motor controller body 10. The bracket 8 has an inlet 1 for introducing cooling water and an outlet 5 for discharging cooling water. At least a first water channel 6 and a second water channel 7 are connected between the inlet 1 and the outlet 5, and there are at least two of each of the first water channel 6 and the second water channel 7. The at least two first water channels 6 are connected in parallel, the at least two second water channels 7 are connected in parallel, and the first water channels 6 and the second water channels 7 are connected in series. In this way, while keeping the power of the cooling water pump constant, the cooling water can flow synchronously through at least two first water channels 6 through the inlet 1, and then synchronously through at least two second water channels 7. This allows the total flow of cooling water provided by the cooling water pump to be evenly distributed between the at least two first water channels and the at least two second water channels. With a constant power of the cooling water pump, this can improve the cooling effect on the motor controller, reduce the power requirement of the cooling water pump, and improve the overall power performance of the vehicle.

[0032] For example, the first waterway 6 includes two waterways connected in parallel, and the second waterway 7 includes three waterways connected in parallel, such as... Figures 2-3 As shown, with a fixed cooling water pump power and a total flow rate of 10 L / min, the flow rate of the water flowing through the inlet 1 through each of the two first water channels 6 is 5 L / min, and then through the three second water channels 7, resulting in a flow rate of 3.3 L / min for each of the three second water channels 7. This increases the cooling water flow rate of each individual water channel compared to the existing parallel cooling structure, ensuring a better cooling effect. Compared to the existing series cooling structure, it shortens the cooling water flow path, ensuring that cooling is provided throughout the flow process without needing to increase the cooling water pump power, thus reducing the power requirement of the cooling water pump.

[0033] In other embodiments, the specific number of the first waterway 6 and the second waterway 7 can also be three, four, etc., which can be set according to actual needs. This application embodiment does not limit this.

[0034] Since most current motor controllers are single-motor or dual-motor controllers, and dual-motor controllers have higher operating power, cooling is necessary for them. Figure 4As shown, the motor controller body 10 includes a first motor controller body and a second motor controller body. The first water channel 6 is fitted with the first motor controller body and is used to cool the first motor controller body. The second water channel 7 is fitted with the second motor controller body and is used to cool the second motor controller body, so that each motor controller body in the dual motor controller can ensure the cooling effect.

[0035] In other embodiments, if the motor controller includes three, four, or more, a third waterway, a fourth waterway, etc., can be added to correspond to the motor controller. This application does not limit this.

[0036] like Figure 2 As shown, both the first water channel 6 and the second water channel 7 extend along the first direction, and the inlet 1 and the outlet 5 are located at the same end of the extension direction of the first water channel 6 or the second water channel 7. In this way, under the action of the cooling water pump, the flow rate of cooling water flowing through each individual water channel is increased, which further improves the cooling effect on the motor controller.

[0037] like Figure 2 As shown, the bracket 8 has a first diversion channel 2, which connects the water inlet 1 and the water inlets of at least two first water channels 6. This allows the cooling water to flow through at least two first water channels 6 simultaneously after entering through the water inlet 1, thus improving the cooling effect.

[0038] The first branch channel 2 extends along the second direction, and there is an angle between the first direction and the second direction. The angle can be an acute angle, a right angle, an obtuse angle, etc. In this embodiment, in order to ensure that at least two parallel first water channels 6 can equally share the total flow of cooling water provided by the cooling water pump, the first direction and the second direction are perpendicularly distributed.

[0039] like Figure 2 As shown, the bracket 8 has a second diversion channel 3, which extends along the second direction. The outlets of at least two first water channels 6 and the inlets of at least two second water channels 7 are all connected to the second diversion channel 3. In this way, the first water channels 6 and the second water channels 7 are connected in series through the second diversion channel 3, so that the cooling water flows from the first water channel 6 to the second water channel 7 to cool the dual motor controller.

[0040] like Figure 2 As shown, the bracket 8 also has a third branch channel 4 extending along the second direction. The third branch channel 4 connects the outlets of at least two second water channels 7 and the outlet 5 of the cooling system, so that at least two second water channels 7 are connected in parallel and the cooling water flows out through the outlet 5 after passing through the second water channels 7.

[0041] It should be noted that the cooling system provided in this application embodiment also includes a cooling water pump, a circulating water system, and a cooler installed on the circulating water system. This system can achieve repeated circulation of cooling water after it flows out through the inlet 1, the first water channel 6, the second water channel 7, and the outlet 5, and is cooled by the cooler before entering the inlet 1 again, so as to ensure a continuous cooling effect on the motor controller body 10.

[0042] like Figure 2 As shown, the first branch channel 2 and the third branch channel 4 are both located at the first end in the first direction, and the second branch channel 3 is located at the second end in the first direction, so that the first branch channel 2 and the third branch channel 4 are distributed relative to the second branch channel 3, which increases the flow rate of cooling water through each individual channel and improves the cooling effect on the motor controller body 10.

[0043] like Figure 2 As shown, each bracket 8 has a mounting hole 9 at its top. The mounting hole 9 allows the bracket 8 to be mounted onto the motor controller body 10 using threaded fasteners, thereby enabling the cooling system to be mounted onto the motor controller body 10 and cooling the motor controller body 10.

[0044] When the motor controller provided in this embodiment is in operation, cooling water first enters the first branch channel 2 through the inlet 1. The first branch channel 2 connects to two first water channels 6, so that the two first water channels 6 share the cooling water volume entering the first branch channel 2 in parallel. After the cooling water flows through the two first water channels 6, it flows from the outlet of the first water channel 6 to the second branch channel 3, and then flows through the second branch channel 3 to the three second water channels 7, so that the three second water channels 7 can share the cooling water volume equally. After flowing through the second water channels 7, the cooling water flows out from the third branch channel 4 through the outlet 5 and enters the circulation cooling. While keeping the power of the cooling water pump constant, the cooling water can first flow synchronously through at least two first water channels 6 through the inlet 1, and then synchronously flow through at least two second water channels 7. This allows at least two first water channels and at least two second water channels to evenly distribute the total flow of cooling water provided by the cooling water pump. With a constant cooling water pump power, the cooling effect on the motor controller body 10 can be improved, the power requirement of the cooling water pump can be reduced, and the overall power performance of the vehicle can be improved.

[0045] This application also provides a vehicle that includes the motor controller described in the above embodiments.

[0046] Since the aforementioned motor controller has the aforementioned technical effects, and the aforementioned automobile includes the aforementioned motor controller, the aforementioned automobile also has the corresponding technical effects, which will not be elaborated here.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric machine controller characterized by comprising: The application relates to a motor controller cooling system. The cooling system comprises a support (8) mounted on the motor controller body (10). The support (8) is provided with a water inlet (1) for water inlet and a water outlet (5) for water outlet. The water inlet (1) and the water outlet (5) are connected with at least a first water channel (6) and a second water channel (7), and the first water channel (6) and the second water channel (7) are at least two. The first water channel (6) is connected in parallel with at least two first water channels (6), the second water channel (7) is connected in parallel with at least two second water channels (7), and the first water channel (6) is connected in series with the second water channel (7). The water inlet (1) and the water outlet (5) are located at the same end along the extension direction of the first water channel (6) or the second water channel (7).

2. The motor controller of claim 1, wherein, The first water channel (6) and the second water channel (7) extend along a first direction. The support (8) is provided with a first branch channel (2), the water inlet (1) is connected with the first branch channel (2), and the first branch channel (2) is connected with the water inlet of the first water channel (6).

3. The motor controller of claim 2, wherein, The first branch channel (2) extends along a second direction, and the first direction and the second direction have an included angle. The support (8) is provided with a second branch channel (3), and the second branch channel (3) extends along the second direction.

4. The motor controller of claim 3, wherein, The water outlet of the first water channel (6) and the water inlet of the second water channel (7) are both connected with the second branch channel (3). The support (8) is provided with a third branch channel (4), and the third branch channel (4) is connected with the water outlet (5).

5. The motor controller of claim 4, wherein, The third branch channel (4) is connected with the water outlet of the second water channel (7), and the third branch channel (4) extends along the second direction. The first branch channel (2) and the third branch channel (4) are located at the first end of the first direction.

6. The motor controller of claim 5, wherein, The second branch channel (3) is located at the second end of the first direction. The motor controller body (10) comprises a first motor controller body and a second motor controller body.

7. The motor controller of claim 1, wherein, The first water channel (6) is arranged in adhesion with the first motor controller body, and the first water channel (6) is used for cooling the first motor controller body. The second water channel (7) is arranged in adhesion with the second motor controller body, and the second water channel (7) is used for cooling the second motor controller body. The support (8) is provided with a mounting hole (9) for mounting the support (8) to the motor controller body (10).

8. The motor controller of any one of claims 1-7, wherein, The cooling system further comprises a cooling water pump and a cooler.

9. The motor controller of any one of claims 1-7, wherein, The application further relates to a motor controller comprising any one of the motor controllers according to claims 1-9.

10. An automobile characterized by comprising: ​

Images