Motor controller and system
By integrating the power module and film capacitor in the motor controller into a water-cooled housing and using a coolant circulation channel for heat dissipation, the space wastage problem caused by separating the film capacitor and heat dissipation device is solved, achieving a smaller and more integrated motor controller design.
Patent Information
- Application Number
- CN202422886245.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The separate and independent installation of film capacitors and heat dissipation devices in existing motor controllers results in a large overall controller assembly, low integration, and wasted space.
The first power module, the second power module, and the film capacitor are integrated together using a water-cooled housing. The water-cooled housing provides heat dissipation, and the film capacitor is detachably embedded in the middle of the water-cooled housing. The water-cooled housing has a coolant circulation channel inside for heat dissipation.
The size of the controller assembly has been reduced, the level of integration has been improved, space waste has been avoided, and heat dissipation performance has been ensured.
Smart Images
Figure CN223540804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor control technology, and in particular to a motor controller and system. Background Technology
[0002] Motor controllers are widely used in the new energy field. A motor controller is a device used to control the starting, stopping, acceleration, deceleration and direction change of a motor. It achieves precise control of the motor through an interface with the motor. In the current development of new energy vehicles, motor controllers are increasingly trending towards integrated structures.
[0003] In existing motor controllers, the film capacitor and heat dissipation device are set up separately. However, this separate setting results in a large controller assembly, low integration, and wasted controller space. Utility Model Content
[0004] This utility model provides a motor controller and system to solve the technical problem in the related art where the existing thin film capacitor and heat sink are set up separately, resulting in a large size of the controller assembly, low integration level, and wasted controller space.
[0005] In a first aspect, a motor controller is provided, comprising:
[0006] Water-cooled housing;
[0007] The first power module is located on the top of the water-cooled housing;
[0008] The second power module is located at the bottom of the water-cooled housing;
[0009] A thin-film capacitor, wherein the thin-film capacitor is detachably embedded in the middle of the water-cooled housing;
[0010] The water-cooled housing is used to dissipate heat from the first power module, the second power module, and the thin-film capacitor simultaneously.
[0011] In some embodiments, the water-cooled housing is a hollow frame structure, and the interior of the water-cooled housing is provided with a coolant circulation channel.
[0012] In some embodiments, the water-cooled housing includes:
[0013] A water inlet, which is connected to the coolant circulation channel, is used to introduce coolant.
[0014] The water outlet is also connected to the coolant circulation channel and is used to discharge coolant.
[0015] In some embodiments, the top and bottom of the water-cooled housing are provided with mounting slots, the size of which matches the first power module and the second power module.
[0016] In some embodiments, a row of bolt holes is provided on one side of the mounting slot, and the bolt holes are used for detachable connection with the first power module and the second power module.
[0017] In some embodiments, the water-cooled housing is made of aluminum alloy.
[0018] In some embodiments, the thin-film capacitor is provided with an insulating shell, the size of which matches the middle of the water-cooled housing.
[0019] In some embodiments, baffles are provided at the top and bottom of the insulating shell.
[0020] In some embodiments, the insulating shell is made of plastic.
[0021] Secondly, a motor control system is provided, including the aforementioned motor controller.
[0022] The beneficial effects of the technical solution provided by this utility model include:
[0023] This utility model embodiment provides a motor controller and system. The motor controller includes a water-cooled housing, a first power module, a second power module, and a thin-film capacitor. The first power module is located at the top of the water-cooled housing, the second power module is located at the bottom of the water-cooled housing, and the thin-film capacitor is detachably embedded in the middle of the water-cooled housing. The water-cooled housing is used to simultaneously dissipate heat from the first power module, the second power module, and the thin-film capacitor. By integrating the first power module, the second power module, and the thin-film capacitor onto the water-cooled housing, the thin-film capacitor and the heat dissipation device do not need to be set up separately, reducing the size of the controller assembly and avoiding wasted controller space. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 A schematic diagram of the specific structure of a motor controller provided in an embodiment of this utility model;
[0026] Figure 2A schematic diagram of the overall structure of a motor controller provided in an embodiment of this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the water-cooled shell provided in an embodiment of the present utility model;
[0028] Figure label:
[0029] 1. Water-cooled housing; 11. Water inlet; 12. Water outlet; 13. Mounting slot; 131. Bolt hole;
[0030] 2. First power module;
[0031] 3. Second power module;
[0032] 4. Film capacitor; 41. Insulating shell; 411. Baffle. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0034] This utility model provides a motor controller and system that solves the technical problem that existing thin-film capacitors and heat sinks are set up separately, resulting in a large controller assembly, low integration, and wasted controller space.
[0035] Figure 1 This utility model provides a motor controller, which includes: a water-cooled housing 1, a first power module 2, a second power module 3, and a thin-film capacitor 4.
[0036] The first power module 2 is located at the top of the water-cooled housing 1, the second power module 3 is located at the bottom of the water-cooled housing 1, and the thin film capacitor 4 is detachably embedded in the middle of the water-cooled housing 1. The water-cooled housing 1 is used to dissipate heat from the first power module 2, the second power module 3 and the thin film capacitor 4 simultaneously.
[0037] This utility model discloses a motor controller comprising a water-cooled housing, a first power module, a second power module, and a thin-film capacitor. The first power module is located at the top of the water-cooled housing, the second power module is located at the bottom of the water-cooled housing, and the thin-film capacitor is detachably embedded in the middle of the water-cooled housing. The water-cooled housing is used to simultaneously dissipate heat from the first power module, the second power module, and the thin-film capacitor. Both the first power module and the second power module are IGBT modules. The first power module is used to control the motor, and the second power module is used to control the drive motor. By integrating the first power module, the second power module, and the thin-film capacitor onto the water-cooled housing and dissipating heat through the water-cooled housing, the thin-film capacitor and the heat dissipation device do not need to be separately installed, reducing the size of the controller assembly and avoiding wasted controller space.
[0038] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 3 As shown, the water-cooled housing 1 is a hollow frame structure, and a coolant circulation channel is provided inside the water-cooled housing 1. The middle part of the water-cooled housing 1 is a hollow structure for housing the thin-film capacitor 4. The first power module 2 is arranged at the top of the water-cooled housing 1, and the second power module 3 is arranged at the bottom. The first power module 2, the thin-film capacitor 4, and the second power module 3 are stacked vertically, realizing integrated arrangement and reducing the volume of the controller assembly. When the coolant circulates inside the water-cooled housing 1, it can simultaneously dissipate heat from the first power module 2 at the top, the thin-film capacitor 4 in the middle, and the second power module 3 at the bottom, achieving integration while ensuring heat dissipation performance.
[0039] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 3 As shown, the water-cooled housing 1 includes an inlet 11 and an outlet 12. The inlet 11 is connected to the coolant circulation channel for introducing coolant, and the outlet 12 is also connected to the coolant circulation channel for discharging coolant. The coolant enters the interior of the water-cooled housing 1 from the inlet 11, flows through the circulation channel to the outlet 12, and is discharged from the outlet 12, thus completing one cycle of water-cooled heat dissipation. The coolant circulates between the inlet 11, the interior of the water-cooled housing 1, and the outlet 12 in sequence to achieve heat dissipation.
[0040] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1As shown, the water-cooled housing 1 is provided with mounting grooves 13 at both the top and bottom. The size of the mounting grooves 13 matches the first power module 2 and the second power module 3. The mounting grooves 13 are used to place and fix the first power module 2 and the second power module 3. At the same time, the structure of the mounting grooves 13 can also protect the circuits and devices of the first power module 2 and the second power module 3, preventing them from shaking or being scratched.
[0041] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, a row of bolt holes 131 is provided on one side of the mounting groove 13. The bolt holes 131 are used for detachable connection with the first power module 2 and the second power module 3. The first power module 2, the second power module 3 and the thin film capacitor 4 are also provided with bolt holes at positions corresponding to the bolt holes 131. By passing bolts through the bolt holes 131, the first power module 2, the second power module 3 and the thin film capacitor 4, the first power module 2 can be fixed to the top of the water-cooled housing 1, the thin film capacitor 4 can be fixed to the middle of the water-cooled housing 1 and the second power module 3 can be fixed to the bottom of the water-cooled housing 1. At the same time, the bolt connection is convenient for disassembly.
[0042] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the water-cooled housing 1 is made of aluminum alloy. Aluminum alloy has heat transfer properties. The water-cooled housing 1 can reduce the temperature of the first power module 2, the second power module 3, and the thin-film capacitor 4 by conducting heat through water flow. In addition, aluminum alloy also has the advantages of low density, good mechanical properties, good processing performance, non-toxicity, easy recycling, and excellent heat transfer and corrosion resistance.
[0043] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the thin-film capacitor 4 is provided with an insulating shell 41 on the outside. The size of the insulating shell 41 matches the middle of the water-cooled housing 1. Since the aluminum alloy material used in the water-cooled housing 1 is conductive, the non-conductive insulating shell 41 is provided on the outside of the thin-film capacitor 4 to isolate or wrap the charged thin-film capacitor 4 and prevent the thin-film capacitor 4 from leaking current. At the same time, both the thin-film capacitor 4 and the insulating shell 41 are located in the hollow structure of the water-cooled housing 1. The size of the insulating shell 41 matches the middle of the water-cooled housing 1, which facilitates installation and integration.
[0044] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2As shown, the insulating shell 41 is provided with baffles 411 at the top and bottom. The baffles 411 extend vertically to the upper part of the water-cooled shell 1. When the insulating shell 41 is placed in the middle of the water-cooled shell 1, the baffles 411 form a blockage on the side of the water-cooled shell 1, limiting the insulating shell 41 so that it is located in the middle of the water-cooled shell 1.
[0045] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the insulating shell 41 is made of plastic. Plastic has electrical insulation and high resistance, and can completely withstand the flow of current. It is used to prevent the material from conducting electricity or causing harm to people and property. In addition, plastic also has the advantages of low production cost, light weight and durability.
[0046] This utility model embodiment also provides a motor control system, including the aforementioned motor controller. The motor controller includes a water-cooled housing 1, a first power module 2, a second power module 3, and a thin-film capacitor 4. The first power module 2 is disposed at the top of the water-cooled housing 1, the second power module 3 is disposed at the bottom of the water-cooled housing 1, and the thin-film capacitor 4 is detachably embedded in the middle of the water-cooled housing 1. The water-cooled housing 1 is used to simultaneously dissipate heat from the first power module 2, the second power module 3, and the thin-film capacitor 4.
[0047] This utility model discloses a motor control system, in which the motor controller comprises a water-cooled housing, a first power module, a second power module, and a thin-film capacitor. The first power module is located at the top of the water-cooled housing, the second power module is located at the bottom of the water-cooled housing, and the thin-film capacitor is detachably embedded in the middle of the water-cooled housing. The water-cooled housing is used to simultaneously dissipate heat from the first power module, the second power module, and the thin-film capacitor. By integrating the first power module, the second power module, and the thin-film capacitor onto the water-cooled housing and dissipating heat through the water-cooled housing, the thin-film capacitor and the heat dissipation device do not need to be separately set up, reducing the size of the controller assembly, improving the degree of integration, and avoiding wasted controller space.
[0048] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 3As shown, the water-cooled housing 1 is a hollow frame structure, and a coolant circulation channel is provided inside the water-cooled housing 1. The middle part of the water-cooled housing 1 is a hollow structure for housing the thin-film capacitor 4. The first power module 2 is arranged at the top of the water-cooled housing 1, and the second power module 3 is arranged at the bottom. The first power module 2, the thin-film capacitor 4, and the second power module 3 are stacked vertically, realizing integrated arrangement and reducing the volume of the controller assembly. When the coolant circulates inside the water-cooled housing 1, it can simultaneously dissipate heat from the first power module 2 at the top, the thin-film capacitor 4 in the middle, and the second power module 3 at the bottom, achieving integration while ensuring heat dissipation performance.
[0049] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 3 As shown, the water-cooled housing 1 includes an inlet 11 and an outlet 12. The inlet 11 is connected to the coolant circulation channel for introducing coolant, and the outlet 12 is also connected to the coolant circulation channel for discharging coolant. The coolant enters the interior of the water-cooled housing 1 from the inlet 11, flows through the circulation channel to the outlet 12, and is discharged from the outlet 12, thus completing one cycle of water-cooled heat dissipation. The coolant circulates between the inlet 11, the interior of the water-cooled housing 1, and the outlet 12 in sequence to achieve heat dissipation.
[0050] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the water-cooled housing 1 is provided with mounting grooves 13 at both the top and bottom. The size of the mounting grooves 13 matches the first power module 2 and the second power module 3. The mounting grooves 13 are used to place and fix the first power module 2 and the second power module 3. At the same time, the structure of the mounting grooves 13 can also protect the circuits and devices of the first power module 2 and the second power module 3, preventing them from shaking or being scratched.
[0051] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1As shown, a row of bolt holes 131 is provided on one side of the mounting groove 13. The bolt holes 131 are used for detachable connection with the first power module 2 and the second power module 3. The first power module 2, the second power module 3 and the thin film capacitor 4 are also provided with bolt holes at positions corresponding to the bolt holes 131. By passing bolts through the bolt holes 131, the first power module 2, the second power module 3 and the thin film capacitor 4, the first power module 2 can be fixed to the top of the water-cooled housing 1, the thin film capacitor 4 can be fixed to the middle of the water-cooled housing 1 and the second power module 3 can be fixed to the bottom of the water-cooled housing 1. At the same time, the bolt connection is convenient for disassembly.
[0052] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the water-cooled housing 1 is made of aluminum alloy. Aluminum alloy has heat transfer properties. The water-cooled housing 1 can reduce the temperature of the first power module 2, the second power module 3, and the thin-film capacitor 4 by conducting heat through water flow. In addition, aluminum alloy also has the advantages of low density, good mechanical properties, good processing performance, non-toxicity, easy recycling, and excellent heat transfer and corrosion resistance.
[0053] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the thin-film capacitor 4 is provided with an insulating shell 41 on the outside. The size of the insulating shell 41 matches the middle of the water-cooled housing 1. Since the aluminum alloy material used in the water-cooled housing 1 is conductive, the non-conductive insulating shell 41 is provided on the outside of the thin-film capacitor 4 to isolate or wrap the charged thin-film capacitor 4 and prevent the thin-film capacitor 4 from leaking current. At the same time, both the thin-film capacitor 4 and the insulating shell 41 are located in the hollow structure of the water-cooled housing 1. The size of the insulating shell 41 matches the middle of the water-cooled housing 1, which facilitates installation and integration.
[0054] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the insulating shell 41 is provided with baffles 411 at the top and bottom. The baffles 411 extend vertically to the upper part of the water-cooled shell 1. When the insulating shell 41 is placed in the middle of the water-cooled shell 1, the baffles 411 form a blockage on the side of the water-cooled shell 1, limiting the insulating shell 41 so that it is located in the middle of the water-cooled shell 1.
[0055] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1As shown, the insulating shell 41 is made of plastic. Plastic has electrical insulation and high resistance, and can completely withstand the flow of current. It is used to prevent the material from conducting electricity or causing harm to people and property. In addition, plastic also has the advantages of low production cost, light weight and durability.
[0056] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0057] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0058] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. 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 the present invention. Therefore, the present invention 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 of the present invention.
Claims
1. A motor controller, characterized in that, include: Water-cooled housing (1); The first power module (2) is located on the top of the water-cooled housing (1); The second power module (3) is located at the bottom of the water-cooled housing (1); A thin film capacitor (4) is detachably embedded in the middle of the water-cooled housing (1); The water-cooled housing (1) is used to simultaneously dissipate heat from the first power module (2), the second power module (3), and the thin-film capacitor (4).
2. The motor controller according to claim 1, characterized in that: The water-cooled shell (1) is a hollow frame structure, and the water-cooled shell (1) is provided with a coolant circulation channel inside.
3. The motor controller according to claim 2, characterized in that, The water-cooled housing (1) includes: Water inlet (11), which is connected to the coolant circulation channel and is used to introduce coolant; The outlet (12) is also connected to the coolant circulation channel for discharging coolant.
4. The motor controller according to claim 3, characterized in that: The water-cooled housing (1) is provided with mounting grooves (13) at the top and bottom, and the size of the mounting grooves (13) matches the first power module (2) and the second power module (3).
5. The motor controller according to claim 4, characterized in that: A row of bolt holes (131) is provided on one side of the mounting groove (13), and the bolt holes (131) are used for detachable connection with the first power module (2) and the second power module (3).
6. The motor controller according to claim 5, characterized in that: The water-cooled housing (1) is made of aluminum alloy.
7. The motor controller according to claim 2, characterized in that: The thin-film capacitor (4) is provided with an insulating shell (41) on the outside, and the size of the insulating shell (41) matches the middle part of the water-cooled shell (1).
8. The motor controller according to claim 7, characterized in that: The insulating shell (41) is provided with baffles (411) at the top and bottom.
9. The motor controller according to claim 8, characterized in that: The insulating shell (41) is made of plastic.
10. A motor control system, characterized in that, The motor controller according to any one of claims 1-9.