Motor controller and electric vehicle
By setting the power device and copper row in the first direction in the motor controller, and setting the capacitor module group and conductive column on the circuit board, the unreasonable layout and wiring of the motor controller are solved, and a small size is achieved Improved design and regularity.
Patent Information
- Application Number
- CN202323371903.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-08
AI Technical Summary
The power devices of existing motor controllers are unreasonable and irregular in wiring, resulting in large volume and unfavorable for miniaturized design and long power loops.
By arranged a plurality of power devices in rows along the first direction, the first copper row and the second copper row extend in the first direction and are arranged on the circuit board, the pins are directly connected to the power device and the circuit board, shortening the power loop, and The capacitor module set and conductive column are arranged on the circuit board to improve structural compactness and regularity.
The compact design of the motor controller is realized, shortening the power loop, reducing the inductance, and improving overall regularity and assembly efficiency.
Smart Images
Figure CN222321837U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, in particular to a motor controller and an electric vehicle. Background Art
[0002] In the prior art, the layout of the power devices arranged on the circuit board of the motor controller takes up a lot of space, resulting in a larger volume of the motor controller as a whole, which is not conducive to the miniaturization design of the motor controller. In addition, the layout of the wires is relatively irregular and the wiring is long, resulting in a longer power loop. Utility Model Content
[0003] The main purpose of the utility model is to provide a motor controller and an electric vehicle to solve the problems of unreasonable layout and unreasonable wiring of power devices of the motor controller in the prior art.
[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a motor controller is provided, including a circuit board, a plurality of power devices, a first copper busbar and a second copper busbar, wherein the plurality of power devices are arranged in a row in sequence along a first direction, and each power device has at least one pin, so that each power device is electrically connected to the circuit board through the pin thereon; the first copper busbar is extended along the first direction and arranged on the circuit board, and the first copper busbar has a plurality of pins, each pin is respectively used to be electrically connected to the pins on each power device; the second copper busbar is extended along the first direction and arranged on the circuit board, and is arranged adjacent to the first copper busbar, the second copper busbar has a plurality of pins, each pin is electrically connected to the circuit board.
[0005] Further, in a second direction perpendicular to the first direction, the first copper bar and the second copper bar have at least a partial overlapping area.
[0006] Furthermore, the motor controller further includes a plurality of capacitor modules, which are arranged on the circuit board and located on a side of the overlapping area away from the power device.
[0007] Furthermore, the motor controller includes multiple capacitor module groups, each capacitor module group includes multiple capacitor modules, and each capacitor module in at least one of the multiple capacitor module groups is in a vertical state, and / or each capacitor module in at least one of the multiple capacitor module groups is in a horizontal state.
[0008] Furthermore, the multiple groups of capacitor module groups include a vertical capacitor module group and a horizontal capacitor module group, and the motor controller also includes a plurality of conductive columns, which are arranged sequentially along a first direction on the circuit board, and the plurality of conductive columns and the plurality of power devices are respectively located on both sides of the first copper bar in a second direction, the vertical capacitor module group is arranged close to the first copper bar, and the horizontal capacitor module group is located on a side of the vertical capacitor module group away from the first copper bar.
[0009] Furthermore, at least one of the multiple conductive pillars is located on a side of the overlapping region away from the power device, and the multiple capacitor modules in the vertical capacitor module group are evenly distributed on both sides of the conductive pillar.
[0010] Furthermore, the conductive column has at least one pin on a side facing the circuit board, and the conductive column is connected to the circuit board by welding through the pin.
[0011] Furthermore, the conductive column has a first positioning protrusion on one side facing the circuit board, and the circuit board has a first positioning groove for cooperating with the first positioning protrusion at a position opposite to the first positioning protrusion.
[0012] Furthermore, the motor controller also includes a terminal structure, which is extended along a first direction on the circuit board and is located on a side of the horizontal capacitor module group away from the power device. The terminal structure has at least one pin on the side facing the circuit board, and the terminal structure is welded to the circuit board through the pin.
[0013] Furthermore, the terminal structure has a second positioning protrusion on one side facing the circuit board, and the circuit board has a second positioning groove for cooperating with the second positioning protrusion at a position opposite to the second positioning protrusion.
[0014] According to another aspect of the present invention, an electric vehicle is provided, comprising a motor controller, and the motor controller is the above-mentioned motor controller.
[0015] By applying the technical solution of the utility model, a plurality of power devices are arranged in a row in sequence along a first direction, and at the same time, a first copper bar is extended along the first direction and arranged on a circuit board, and a second copper bar is extended along the first direction and arranged on the circuit board and arranged adjacent to the first copper bar. In this way, since the plurality of power devices, the first copper bar and the second copper bar are all arranged along the first direction, the compactness of the structure of the entire motor controller is ensured, which is conducive to the miniaturized design of the motor controller. In addition, the pins of the first copper bar are directly electrically connected to the pins of the power device, and the pins of the second copper bar are directly electrically connected to the circuit board, which greatly shortens the power circuit of the motor controller. At the same time, no additional wiring is required through the circuit board, which is conducive to reducing the inductance of the motor controller and further improving the regularity of the motor controller. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0017] Figure 1 A schematic diagram of the structure of a motor controller according to an optional embodiment of the utility model is shown;
[0018] Figure 2 Shows Figure 1 A partial structural diagram of the motor controller in FIG.
[0019] Figure 3 Shows Figure 1 A schematic diagram of the structure of the motor controller from a top view;
[0020] Figure 4 Shows Figure 2 Schematic diagram of the structure of the motor controller from another perspective, in which the power devices are omitted.
[0021] The above drawings include the following reference numerals:
[0022] 10. Circuit board; 20. Power device; 30. First copper busbar; 40. Second copper busbar; 50. Capacitor module;
[0023] 61. Vertical capacitor module group; 62. Horizontal capacitor module group; 70. Conductive column; 80. Terminal structure. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] In order to solve the problems of unreasonable layout of power devices and unreasonable wiring of motor controllers in the prior art, the utility model provides a motor controller and an electric vehicle, wherein the electric vehicle includes a motor controller, and the motor controller is the motor controller described above and below.
[0026] like Figures 1 to 4As shown, the motor controller includes a circuit board 10, a plurality of power devices 20, a first copper busbar 30 and a second copper busbar 40, wherein the plurality of power devices 20 are arranged in a row in sequence along a first direction, and each power device 20 has at least one pin, so that each power device 20 is electrically connected to the circuit board 10 through the pin thereon; the first copper busbar 30 is extended along the first direction and arranged on the circuit board 10, and the first copper busbar 30 has a plurality of pins, each pin is respectively used to be electrically connected to the pins on each power device 20; the second copper busbar 40 is extended along the first direction and arranged on the circuit board 10, and is arranged adjacent to the first copper busbar 30, and the second copper busbar 40 has a plurality of pins, each pin is electrically connected to the circuit board 10.
[0027] By arranging a plurality of power devices 20 in a row in sequence along a first direction, and at the same time, extending a first copper bar 30 along the first direction and arranged on a circuit board 10, and extending a second copper bar 40 along the first direction and arranged on the circuit board 10 and arranged adjacent to the first copper bar 30, in this way, since a plurality of power devices 20, a first copper bar 30, and a second copper bar 40 are all arranged along the first direction, the compactness of the structure of the entire motor controller is ensured, which is conducive to the miniaturization design of the motor controller. In addition, the pins of the first copper bar 30 are directly electrically connected to the pins of the power device 20, and the pins of the second copper bar 40 are directly electrically connected to the circuit board 10, which greatly shortens the power circuit of the motor controller. At the same time, no additional wiring is required through the circuit board 10, which is conducive to reducing the inductance of the motor controller and further improving the regularity of the motor controller.
[0028] It should be noted that, in the present application, the first copper bar 30 is a positive copper bar, and the second copper bar 40 is a negative copper bar. Of course, the first copper bar 30 may be a negative copper bar, and the second copper bar 40 may be a positive copper bar.
[0029] like Figure 3 As shown, in the second direction perpendicular to the first direction, the first copper bar 30 and the second copper bar 40 have at least a portion of overlapping area. In this way, the regularity of the overall layout of the motor controller is ensured, which is conducive to full use of space, thereby ensuring the compactness of the structure of the motor controller and facilitating the miniaturization design of the motor controller.
[0030] like Figure 3 As shown, the dotted line frame A in the figure represents the overlapping area of the first copper bar 30 and the second copper bar 40, the arrow B represents the first direction, and the arrow C represents the second direction.
[0031] like Figures 1 to 4 As shown, the motor controller further includes a plurality of capacitor modules 50, which are arranged on the circuit board 10 and located on a side of the overlapping area away from the power device 20. In this way, the compactness of the overall layout of the motor controller is ensured.
[0032] It should be noted that in the present application, considering that other components are also arranged on the circuit board 10, in order to ensure that each component can fully utilize the space on the circuit board 10 and ensure the compactness of the structure of the motor controller, such as Figures 1 to 4 As shown, the motor controller includes multiple groups of capacitor module groups, each group of capacitor module groups includes multiple capacitor modules 50, and each capacitor module 50 in at least one of the multiple capacitor module groups is in a vertical state, and / or each capacitor module 50 in at least one of the multiple capacitor module groups is in a horizontal state. In this way, by setting some capacitor modules 50 in a vertical state and setting another part of the capacitor modules 50 in a horizontal state, it is ensured that the space on the circuit board 10 is fully utilized, and the regularity of the motor controller can also be ensured.
[0033] It should be noted that in the present application, the number of capacitor modules 50 in the capacitor module group in a vertical state is equal to the number of capacitor modules 50 in the capacitor module group in a horizontal state. Of course, the number of capacitor modules 50 can be adjusted according to the performance requirements of the product.
[0034] like Figures 1 to 4 As shown, the plurality of capacitor module groups include a vertical capacitor module group 61 and a horizontal capacitor module group 62, and the motor controller further includes a plurality of conductive pillars 70, which are sequentially arranged along a first direction on the circuit board 10, and the plurality of conductive pillars 70 and the plurality of power devices 20 are respectively located on both sides of the first copper bar 30 in a second direction, the vertical capacitor module group 61 is arranged close to the first copper bar 30, and the horizontal capacitor module group 62 is located on a side of the vertical capacitor module group 61 away from the first copper bar 30. In this way, the regularity of the layout on the entire circuit board 10 is ensured.
[0035] like Figure 3 As shown, at least one of the plurality of conductive pillars 70 is located on the side of the overlapping region away from the power device 20, and the plurality of capacitor modules 50 in the vertical capacitor module group 61 are evenly distributed on both sides of the conductive pillar 70. In this way, the space on the circuit board 10 is fully utilized.
[0036] It should be noted that, in the present application, the conductive column 70 has at least one pin on the side facing the circuit board 10, and the conductive column 70 is welded to the circuit board 10 through the pin. In this way, on the one hand, the conductive column 70 is welded to the circuit board 10 through the pin, which replaces the existing method of fixing the conductive column 70 to the circuit board 10 by screws, that is, the existing surface-to-surface contact method is changed to a welding method with multiple contact points, and the pin is located at the bottom of the conductive column 70, avoiding occupying a large space on the circuit board 10. In addition, if other components on the circuit board 10 are also fixed by welding, different components can also be welded simultaneously, reducing one process, which is beneficial to improving the assembly efficiency of the motor controller. In addition, it can also avoid opening an assembly hole on the circuit board 10 (the existing method of fixing the conductive column 70 by screws requires opening an assembly hole on the circuit board 10).
[0037] Furthermore, the conductive column 70 has a first positioning protrusion on one side facing the circuit board 10 , and the circuit board 10 has a first positioning groove for cooperating with the first positioning protrusion at a position opposite to the first positioning protrusion. In this way, the first positioning protrusion plays a role in positioning the conductive column 70 .
[0038] like Figures 1 to 4 As shown, the motor controller further includes a terminal structure 80, which is extended along the first direction and arranged on the circuit board 10, and is located on the side of the horizontal capacitor module group 62 away from the power device 20, and the terminal structure 80 has at least one pin on the side facing the circuit board 10, and the terminal structure 80 is welded and connected to the circuit board 10 through the pin. In this way, it avoids occupying a large installation space on the circuit board 10, and can also ensure the regularity of the layout on the circuit board 10. In addition, it can also avoid opening an assembly hole on the circuit board 10 (the existing terminal structure 80 fixed by screws requires opening an assembly hole on the circuit board 10).
[0039] Furthermore, the terminal structure 80 has a second positioning protrusion on one side facing the circuit board 10 , and the circuit board 10 has a second positioning groove for cooperating with the second positioning protrusion at a position opposite to the second positioning protrusion. In this way, the second positioning protrusion plays a role in positioning the terminal structure 80 .
[0040] It should be noted that in the present application, the first positioning protrusion is made of metal material and can be welded to the circuit board 10, while the second positioning protrusion is made of non-metal material and is only used for positioning. Of course, the second positioning protrusion can also be set to a metal material and welded to the circuit board 10 in the same manner.
[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0042] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.
[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.
[0046] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A motor controller, characterized in that: include: Circuit board (10); A plurality of power devices (20), wherein the plurality of power devices (20) are arranged in a row in sequence along a first direction, and each of the power devices (20) has at least one pin, so that each of the power devices (20) is electrically connected to the circuit board (10) via the pin thereon; a first copper bar (30), the first copper bar (30) extending along the first direction and arranged on the circuit board (10), and the first copper bar (30) having a plurality of pins, each of the pins being respectively used to be electrically connected to a pin on each of the power devices (20); A second copper bar (40), the second copper bar (40) is extended along the first direction and arranged on the circuit board (10), and is arranged adjacent to the first copper bar (30), the second copper bar (40) having a plurality of pins, each of the pins being electrically connected to the circuit board (10).
2. The motor controller according to claim 1, characterized in that: In a second direction perpendicular to the first direction, the first copper bar (30) and the second copper bar (40) have at least a partial overlapping area.
3. The motor controller according to claim 2, characterized in that: The motor controller further comprises: A plurality of capacitor modules (50) are arranged on the circuit board (10) and are located on a side of the overlapping region away from the power device (20).
4. The motor controller according to claim 3, characterized in that: The motor controller comprises: A plurality of capacitor module groups, each of the capacitor module groups comprising a plurality of capacitor modules (50), and each of the capacitor modules (50) in at least one of the plurality of capacitor module groups is in a vertical state, and / or each of the capacitor modules (50) in at least one of the plurality of capacitor module groups is in a horizontal state.
5. The motor controller according to claim 4, characterized in that: The plurality of capacitor module groups include a vertical capacitor module group (61) and a horizontal capacitor module group (62), and the motor controller further includes: A plurality of conductive pillars (70), wherein the plurality of conductive pillars (70) are arranged in sequence along the first direction on the circuit board (10), and the plurality of conductive pillars (70) and the plurality of power devices (20) are respectively located on both sides of the first copper bar (30) in the second direction, the vertical capacitor module group (61) is arranged close to the first copper bar (30), and the horizontal capacitor module group (62) is located on a side of the vertical capacitor module group (61) away from the first copper bar (30).
6. The motor controller according to claim 5, characterized in that: At least one of the plurality of conductive pillars (70) is located on a side of the overlapping region away from the power device (20), and the plurality of capacitor modules (50) in the vertical capacitor module group (61) are evenly distributed on both sides of the conductive pillar (70).
7. The motor controller according to claim 5, characterized in that: The conductive column (70) has at least one pin on a side facing the circuit board (10), and the conductive column (70) is connected to the circuit board (10) by welding via the pin.
8. The motor controller according to claim 7, characterized in that: The conductive column (70) also has a first positioning protrusion on one side facing the circuit board (10), and the circuit board (10) has a first positioning groove for cooperating with the first positioning protrusion at a position opposite to the first positioning protrusion.
9. The motor controller according to claim 5, characterized in that: The motor controller further comprises: A terminal structure (80), the terminal structure (80) is extended along the first direction and arranged on the circuit board (10), and is located on a side of the horizontal capacitor module group (62) away from the power device (20), and the terminal structure (80) has at least one pin on a side facing the circuit board (10), and the terminal structure (80) is welded to the circuit board (10) via the pin.
10. The motor controller according to claim 9, characterized in that: The terminal structure (80) also has a second positioning protrusion on a side facing the circuit board (10), and the circuit board (10) has a second positioning groove for cooperating with the second positioning protrusion at a position opposite to the second positioning protrusion.
11. An electric vehicle, characterized in that: It comprises a motor controller, and the motor controller is the motor controller according to any one of claims 1 to 10.