Double-electric-control power assembly and motor controller
By arranging and integrating power modules in parallel on the capacitor module, the problem of large space occupation of dual electronically controlled power modules is solved, achieving a compact structural design and high power density, suitable for a variety of application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-03-20
AI Technical Summary
Existing dual-electric-controlled power modules occupy a large amount of space in the length direction, which limits their application and cannot meet the needs of small-scale integrated scenarios.
Design a dual-electronically controlled power component, in which power modules are arranged side by side on capacitor modules along the width direction and integrated through heat dissipation channels, copper busbars and printed circuit boards to reduce lateral space occupation and achieve efficient heat dissipation and current monitoring.
It achieves a compact layout of power modules, reduces the overall lateral space occupied, improves power density and reusability, and is suitable for a variety of application scenarios.
Smart Images
Figure CN224021615U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor control technical field especially relates to a double electric control power assembly and motor controller. BACKGROUND
[0002] With the rapid development of new energy technology, the demand for power modules in power electronic systems presents a trend of high power density, high reliability and high efficiency. As the core component of power electronic devices, power modules bear the key functions of power conversion, control and transmission, and their performance directly affects the stability and energy efficiency of the system. The motor controller needs to realize hundreds of kilowatts of power output in a limited volume, while meeting the long-term reliable operation in harsh environments such as high temperature and vibration. The research and development of double electric control power modules has become an important direction for technological breakthrough in the industry.
[0003] The existing double electric control power module corresponds to two power modules, but the integrated module often occupies a large space horizontally, thus limiting the application scenario and failing to meet some small integrated application scenarios. UTILITY MODEL CONTENT
[0004] In order to overcome the above technical defects, the purpose of the utility model is to provide a double electric control power assembly and a motor controller to solve the problem of large length occupation of the existing double electric control power assembly and limited application.
[0005] The utility model discloses a double electric control power assembly,
[0006] The double electric control power assembly comprises a capacitor module and a power module group connected with the capacitor module.
[0007] The power module group comprises two power modules, and each power module is respectively provided with an AC copper bar and a DC copper bar at both ends in the width direction.
[0008] The two power modules are arranged on the capacitor module in a side-by-side manner on the side of the DC copper bar.
[0009] Preferably, the capacitor module comprises a shell and a capacitor core.
[0010] The shell is integrated with a heat dissipation water channel.
[0011] Preferably, the heat dissipation water channel comprises a first heat dissipation area and a second heat dissipation area extending out of the surface of the shell.
[0012] The two power modules are connected to the shell and respectively close the first heat dissipation area and the second heat dissipation area.
[0013] The first heat dissipation area and the second heat dissipation area are communicated on one side of the shell, and the shell is provided with a water inlet and a water outlet on the other side.
[0014] Preferably, the capacitor module is connected with a capacitor copper bar;
[0015] The capacitor copper bar extends between the first heat dissipation area and the second heat dissipation area and is bent to be arranged on the surface of the shell;
[0016] The DC copper bars on the two power modules are respectively bent and connected with the capacitor copper bar.
[0017] Preferably, the shell is provided with a support for supporting the capacitor copper bar and the DC copper bars on the power modules.
[0018] Preferably, the shell is provided with a support for supporting the capacitor copper bar and the DC copper bars on the power modules.
[0019] The printed circuit board is arranged on the side of the power module group away from the side connected with the capacitor module.
[0020] Preferably, the printed circuit board is integrated with a coreless current measurement assembly.
[0021] Preferably, the coreless current measurement assembly comprises two coreless sensor board cards.
[0022] The two coreless sensor board cards are connected on opposite sides of the printed circuit board.
[0023] Preferably, one side of the shell has a potting surface, so that the capacitor core is arranged in the shell and is potted to form the capacitor module.
[0024] The utility model also provides a motor controller, applies any one of the double electric control power assembly.
[0025] After the above technical scheme is adopted, compared with the prior art, the following beneficial effects are obtained:
[0026] The electric control power assembly provided in the application has the following advantages:
[0027] The capacitor module, the power module, the copper bar, the coreless sensor board card and the heat dissipation channel are integrated, so that the structure is compact, the weight is small, the power density is high, the reusability is high and the application scenarios are wide. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 FIG. 1 is a structural schematic view of a double electric control power assembly and a motor controller embodiment of the utility model;
[0029] Figure 2The utility model discloses a double electric control power assembly and motor controller embodiment embody the structure schematic drawing of power module pair.
[0030] Figure 3 The utility model discloses a double electric control power assembly and motor controller embodiment embody the structure schematic drawing of radiating water channel.
[0031] Reference signs:
[0032] 1-capacitor module;11-housing;12-radiating water channel;121-first radiating area;122-second radiating area;123-water inlet;124-water outlet;125-radiating channel;13-capacitor copper bar;14-bracket;2-power module;21-AC copper bar on power module;22-DC copper bar on power module;3-printed circuit board;4-non-magnetic core sensor board card DETAILED DESCRIPTION
[0033] The advantages of the utility model will be further described below in combination with the drawings and specific embodiments.
[0034] The exemplary embodiments will be described in detail herein below with reference to the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments are not meant to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0035] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0036] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various information, these terms are not intended to denote a particular order or hierarchy. These terms are used only to distinguish one from another. Depending on the context, the word "if" as used herein can be interpreted to mean "when" or "upon" or "in response to determining."
[0037] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0038] In the description of the utility model, unless otherwise specified and limited, it is necessary to explain that the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, it can be the communication between two elements, it can be direct connection, or indirect connection through intermediate medium, and the specific meaning of the above terms can be understood according to the specific situation for ordinary skilled persons in the art.
[0039] In the subsequent description, the suffix such as "module", "component" or "unit" used to represent elements is only for the convenience of the description of the utility model, and has no specific meaning. Therefore, "module" and "component" can be used mixedly.
[0040] Embodiment: the embodiment discloses a double electric control power assembly, which can be used in some specific small integrated scenes, referring to Figures 1-3 , including a capacitor module 1 and a power module 2 group connected with the capacitor module 1, the capacitor module 1 and the power module 2 group are distributed and connected in a stacking mode; the power module 2 group includes two power modules 2 (IGBT modules), each power module 2 is provided with an AC copper bar 21 and a DC copper bar 22 at opposite ends in the width direction; two power modules 2 are arranged on the capacitor module 1 in a side-by-side manner with the DC copper bars 22 opposite to each other, forming a power module 2 arranged in a side-by-side manner (copper bars opposite) along the width (shorter side) of the power module 2 itself, thereby integrated into a small independent module for specific smaller space scenes.
[0041] Based on the above, the double electric control power assembly of the embodiment, the capacitor module 1 and the power module 2 group are arranged in a stacking mode, the two power modules 2 in the power module 2 group are arranged in a side-by-side manner in the width direction and cover the capacitor module 1 above, which facilitates wiring and reduces the overall transverse space occupation, so that the whole presents an approximately square space occupation instead of a long strip-shaped space occupation, which can be limited in some scene applications.
[0042] In the embodiment, the power module 2 (such as Figure 2The capacitor module 1 is also provided with several terminals. The AC copper busbar 21 can also be used to connect other components. The capacitor module 1 and the power module 2 are electrically connected through the copper busbar. Specifically, the capacitor module 1 is connected to the capacitor copper busbar 13, which extends to be stacked with the DC copper busbar 22 on the power module 2 so as to make close contact.
[0043] In this embodiment, the dual-electrically controlled power component may also integrate heat dissipation and / or monitoring functions.
[0044] Therefore, in a preferred embodiment, the capacitor module 1 includes a housing 11 and a capacitor core (not shown in the figure, located inside the housing 11); as Figure 3 As shown, the housing 11 integrates a heat dissipation channel 12. By integrating the heat dissipation channel 12 onto the housing 11 of the capacitor module 1, the heat dissipation function of the dual-electrically controlled power component is integrated. Specifically, the heat dissipation channel 12 includes a first heat dissipation area 121 and a second heat dissipation area 122 extending out of the surface of the housing 11. The two power modules 2 are connected to the housing 11 and respectively enclose the first heat dissipation area 121 and the second heat dissipation area 122. The first heat dissipation area 121 and the second heat dissipation area 122 are connected on one side of the housing 11, and the housing 11 is provided with an inlet 123 and an outlet 124 on the other side.
[0045] In the above embodiment, the power module 2 encloses the first heat dissipation area 121 and the second heat dissipation area 122 on the surface of the housing 11, that is, the power module 2 can form part of the heat dissipation channel 12. The heat dissipation channel 12 is located between the capacitor core and the power module 2, so as to realize synchronous heat dissipation of the capacitor module 1 and the power module 2 and improve heat dissipation efficiency.
[0046] Specifically, the first heat dissipation area 121 and the second heat dissipation area 122 are connected within the capacitor housing 11. Figure 3 The water inlet 123 can be connected to the first heat dissipation zone 121, and the water outlet 124 can be connected to the second heat dissipation zone 122, thus forming a heat dissipation path of water inlet 123-first heat dissipation zone 121-second heat dissipation zone 122-water outlet 124. Setting the water inlet 123 and water outlet 124 on the same side facilitates the connection and arrangement of water pipes.
[0047] In this embodiment, the capacitor module 1 and the power module 2 are electrically connected via a copper busbar, as described above. Specifically, the capacitor module 1 is connected to a capacitor copper busbar 13. The capacitor copper busbar 13 extends out between the first heat dissipation area 121 and the second heat dissipation area 122 and is bent and placed on the surface of the housing 11. The DC copper busbars 22 on the two power modules 2 are respectively bent and connected to the capacitor copper busbar 13. That is, the two power modules 2 are arranged opposite to each other, and the capacitor copper busbar 13 on the capacitor module 1 extends out of the housing 11 and extends between the two power modules 2, connecting with the DC copper busbar 22 on the power module 2. More specifically, the DC copper busbars 22 on the power modules 2 are stacked on the capacitor copper busbar 13.
[0048] It should be noted that there are two capacitor copper busbars 13, which are respectively connected to the DC copper busbars 22 on the two power modules 2. The two capacitor copper busbars 13 are bent with their rear ends facing each other and are arranged corresponding to the DC copper busbars 22 on the two power modules 2. Thus, the two power modules 2 establish their own channels to connect with the capacitor module 1, and the two power modules 2 cooperate to realize a flexible control strategy.
[0049] Based on the above connection, as a preferred embodiment, the housing 11 is provided with a bracket 14 to support the capacitor copper busbar 13 and the DC copper busbar 22 on the power module 2. Specifically, the capacitor copper busbar 13 extending out of the housing 11 is bent and fixed by the bracket 14. The DC copper busbar 22 on the power module 2 can be bent and connected to the capacitor copper busbar 13, or it can be bent and tightly fitted to the capacitor copper busbar 13 and fixed to the bracket 14, thereby achieving connection with the capacitor copper busbar 13. Optionally, the housing 11 can be a metal part, and the bracket 14 can be a plastic part, configured as a long strip structure. The two capacitor copper busbars 13 are respectively positioned on the bracket 14 with their bent ends facing each other, which helps to isolate the two capacitor copper busbars 13, thereby further reducing the mutual interference between the two power modules 2.
[0050] In this embodiment, one side of the housing 11 has a potting cover, allowing the capacitor core to be potted after being placed in the housing 11 to form the capacitor module 1. Specifically, the potting cover can be configured to be located on the side of the housing 11 facing away from the power module 2 (not shown in the figure, i.e., Figure 1 Alternatively, the capacitor busbar 13 (or the bottom of capacitor module 1 in section 3) is also located on the circumferential side wall of the housing 11, without affecting the arrangement of the heat dissipation channel 12. During potting, since the aforementioned capacitor copper busbar 13 needs to extend out of the housing 11, it can be bent after potting. Furthermore, the capacitor copper busbar 13 can also extend out of the housing 11 at the other end (i.e., the end away from the one connected to the DC copper busbar 22 of the power module 2) to connect with external components and / or devices.
[0051] In a preferred embodiment, the double-electronic-control power assembly further comprises a printed circuit board 3 (PCBA) for electrical connection with other electronic components, the printed circuit board 3 is arranged on the side of the power module 2 group away from the side connected with the capacitor module 1, that is, the printed circuit board 3, the power module 2, and the capacitor module 1 are stacked in turn from top to bottom, and a heat dissipation water channel 12 is arranged between the power module 2 and the capacitor core.
[0052] As an option, the printed circuit board 3 is integrated with a coreless current measurement assembly, which is a device for measuring current, specifically, the coreless current measurement assembly comprises two coreless sensor board cards 4; the two coreless sensor board cards 4 are connected on opposite sides of the printed circuit board 3, and the two coreless sensor board cards 4 can be connected to the two power modules 2 respectively to monitor the current of each power module 2, and the two coreless sensor board cards 4 are arranged opposite to each other on the printed circuit board 3 to reduce the risk of mutual interference.
[0053] It can be understood that other electronic components such as resistors, capacitors, chips, etc. can also be integrated through the printed circuit board 3 to meet different scene requirements.
[0054] Based on the above, the double-electronic-control power assembly metal shell 11 provided by the embodiment integrates the capacitor module 1, the power module 2, the copper bar (the capacitor copper bar 13 (DC copper bar 22), the AC copper bar 21 on the power module 2, the DC copper bar 22), the coreless sensor board card 4, and the heat dissipation water channel 12; it is highly integrated, compact in structure, light in weight, and high in power density; further, the capacitor copper bar 13 extending from the capacitor module 1, the AC copper bar 21 on the power module 2, etc. have strong reusability, and can be connected to other modules / units / devices according to actual scene requirements. It can be applied as an independent or auxiliary component in different control systems.
[0055] The embodiment also provides a motor controller which applies any of the above-mentioned double-electronic-control power assemblies, the two power modules 2 work cooperatively to realize power superposition and meet the demand of high-power load, and can be used as a core control device of a vehicle. It can be understood that the motor controller can also be connected to other modules, units, components, devices, systems, etc. for realizing operation to be applied in different scenes.
[0056] It should be noted that the embodiments of the present application have good implementation, and do not limit the present application in any form, and any skilled person in the art can change or modify the equivalent effective embodiments by using the disclosed technical content, as long as the content of the technical scheme of the present application is not deviated, and any modification or equivalent change and modification of the above embodiments according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.
Claims
1. A dual-electrically controlled power component, characterized in that: It includes a capacitor module and a power module group connected to the capacitor module; The power module group includes two power modules, and each power module is provided with an AC copper busbar and a DC copper busbar at both ends along the width direction; The two power modules are arranged side-by-side on the capacitor module with their DC copper busbars facing each other.
2. The dual-electrically controlled power component according to claim 1, characterized in that: The capacitor module includes a housing and a capacitor core; The housing is equipped with heat dissipation channels.
3. The dual-electrically controlled power component according to claim 2, characterized in that: The heat dissipation channel includes a first heat dissipation area and a second heat dissipation area extending out of the surface of the housing; The two power modules are connected to the housing and respectively enclose the first heat dissipation area and the second heat dissipation area; The first heat dissipation area and the second heat dissipation area are connected on one side of the housing, and the housing is provided with an inlet and an outlet on the other side.
4. The dual-electrically controlled power component according to claim 3, characterized in that: The capacitor module is connected to a capacitor copper busbar; The capacitor copper busbar extends between the first heat dissipation area and the second heat dissipation area and is bent and placed on the surface of the housing. The DC copper busbars on the two power modules are bent and connected to the capacitor copper busbars respectively.
5. The dual-electrically controlled power component according to claim 4, characterized in that: The housing is provided with a bracket to support the capacitor copper busbar and the DC copper busbar on the power module.
6. The dual-electrically controlled power component according to claim 1, characterized in that: It also includes printed circuit boards; The printed circuit board is arranged on the side of the power module group opposite to the side connected to the capacitor module.
7. The dual-electrically controlled power component according to claim 6, characterized in that: The printed circuit board integrates a coreless current measurement component.
8. The dual-electrically controlled power component according to claim 7, characterized in that: The coreless current measurement assembly includes two coreless sensor boards. The two coreless sensor boards are connected to opposite sides of the printed circuit board.
9. The dual-electrically controlled power component according to claim 2, characterized in that: The housing has a potting surface on one side, which allows the capacitor core to be placed in the housing and then potted to form the capacitor module.
10. A motor controller, characterized in that: The dual electronically controlled power component described in any one of claims 1-9 is applied.