Power assembly applied to double-electric-control integrated water channel
By designing the power components of integrated waterways in a dual motor controller, the problems of complex structure, large size and poor heat dissipation in the prior art are solved, and high integration, low cost and good heat dissipation effects are achieved.
Patent Information
- Application Number
- CN202421167518.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The power units and capacitors in existing dual motor controllers exist independently, resulting in complex structure, large volume and poor heat dissipation effect.
A power assembly integrating water channels is designed, by providing side-by-side electrical chambers in the housing, and partitioning the chamber into a power module installation chamber and a capacitance chamber using a cooling partition, forming a cooling chamber to accommodate cooling water, and circulating the cooling water of the two chambers through the connecting water channels.
Highly integrated, low-cost, good heat dissipation power components are achieved, reducing controller volume, reducing the risk of thermal runaway, and omitting traditional thermally conductive materials and structures.
Smart Images
Figure CN222655485U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power modules, in particular to a power component of an integrated waterway applied to dual electric controls. Background Art
[0002] There are generally two groups of power units and corresponding capacitors in a dual-motor controller. In the prior art, the capacitors exist independently and are assembled with the power units through a housing. Usually, structures such as thermal pads are required, which have a complex structure, a large volume, and poor heat dissipation effect. Summary of the invention
[0003] In order to overcome the above technical defects, the purpose of the utility model is to provide a power component for an integrated water channel of a dual electronic control system with high integration, low cost and good heat dissipation.
[0004] The utility model discloses a power component with integrated water channel for dual electric control, comprising a shell, the shell comprising two electrical chambers arranged side by side, the electrical chamber comprising a cooling baffle, the cooling baffle dividing the electrical chamber into an upper power module installation chamber and a lower capacitor chamber, the capacitor core is arranged in the capacitor chamber, and the power module is arranged in the power module installation chamber; the power module is fixed on the shell so that a cooling chamber is formed between the power module and the cooling baffle, the cooling chamber is used to contain cooling water to cool the power module and the capacitor core; the two electrical chambers are separated by a retaining wall, the retaining wall is provided with a connecting water channel, and the two ends of the connecting water channel are respectively connected to the cooling chambers of the two electrical chambers.
[0005] Preferably, a side wall water channel is provided on the side of the capacitor chamber away from the other capacitor chamber, so that the side wall water channels are respectively provided on both sides of the shell; the side wall water channel is connected with the cooling chamber; a fluid inlet and a fluid outlet are provided on the shell, and the fluid inlet and the fluid outlet are respectively connected to the two side wall water channels, thereby: cooling water enters one of the two side wall water channels through the fluid inlet, and then flows through one of the two cooling chambers, the connecting water channel, the other cooling chamber, the other side wall water channel, and flows out from the fluid outlet.
[0006] Preferably, the two electrical chambers are defined to be arranged left and right, and the fluid inlet and the fluid outlet are arranged at the upper part or the lower part of the shell.
[0007] Preferably, the retaining wall is provided with a groove, the groove forms the connecting water channel, and the bottom surface of the groove is located at the same horizontal plane as the cooling baffle, so that the connecting water channel and the bottom surface of the cooling chamber are located at the same horizontal plane.
[0008] Preferably, the retaining wall is provided with a groove, the groove forms the connecting water channel, and the bottom surface of the groove is lower than the cooling baffle, so that the bottom surface of the connecting water channel is lower than the bottom surface of the cooling chamber.
[0009] Preferably, it further comprises a cover plate, the bottom of the shell is an open structure, and the cover plate is fixedly connected to the shell; the cover plate is made of metal.
[0010] Preferably, the upper part and the lower part of the capacitor core are respectively provided with a first copper bar and a second copper bar, the first copper bar is arranged in contact with the cooling baffle, and the second copper bar is arranged in contact with the cover plate;
[0011] The first copper bar is a positive copper bar, and the second copper bar is a negative copper bar; or the first copper bar is a negative copper bar, and the second copper bar is a positive copper bar.
[0012] Preferably, two sides of the second copper bar are bent upwards respectively to fit the side wall water channel.
[0013] Compared with the prior art, the above technical solution has the following beneficial effects:
[0014] 1. The utility model is applied to the electric control with dual module requirements. The water channel is cast in series, with high integration and small size, which can reduce the volume of the controller; good heat dissipation reduces the risk of thermal runaway, so that the thickness of the internal copper bar can be reduced, the capacitance value can be reduced, and the cost is reduced; the injection molding capacitor housing, controller housing water channel, and thermal conductive material of the prior art are omitted. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the structure of the power component of the integrated water channel provided by the utility model;
[0016] Figure 2 A schematic diagram of the structure of the housing of the power component with integrated water channel provided by the utility model;
[0017] Figure 3 A longitudinal cross-sectional view of a power assembly with integrated water channel provided by the utility model;
[0018] Figure 4 A schematic diagram of the arrangement structure of the first copper bar provided by the utility model;
[0019] Figure 5 A schematic diagram of the arrangement structure of the second copper busbar provided by the utility model;
[0020] Figure 6 This is a schematic diagram of the layout structure of the cover plate provided by the utility model.
[0021] Among them: 1-shell, 2-power module installation chamber, 3-capacitor chamber, 4-connecting water channel, 5-side wall water channel, 6-fluid inlet, 7-fluid outlet, 8-cover plate, 9-first copper busbar, 10-second copper busbar. DETAILED DESCRIPTION
[0022] The advantages of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.
[0023] Exemplary embodiments will be described in detail herein, examples of which are shown in 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 embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0024] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0025] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0026] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0027] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.
[0028] In the following description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and they themselves have no specific meaning. Therefore, "module" and "component" can be used interchangeably.
[0029] See attached Figure 1 The utility model discloses a power component for an integrated water channel with dual electric control, including a capacitor component, a power module component and a current sensor. In the utility model, the capacitor component and the power module component are stacked up and down (different from the commonly used in the prior art: the power module component is arranged on the side of the capacitor component), and the current sensor is arranged on the side of the capacitor component to detect the current of the copper busbar connected to the power module and the capacitor (usually, the copper busbar is connected to the power module and the capacitor to convert the input DC current into AC current output).
[0030] The utility model is applied to a power component of a dual electric control, namely comprises two power module components and two corresponding capacitor components, wherein the power module components and the capacitor components respectively constitute an electric control unit.
[0031] See attached Figure 2-3 The housing 1 of the power assembly of the present invention includes two electrical chambers arranged side by side (for ease of understanding, the electrical chambers arranged side by side can be understood as being arranged left and right and arranged longitudinally), and a cooling baffle is provided in the electrical chamber, which divides the electrical chamber into an upper power module installation chamber 2 and a lower capacitor chamber 3, the capacitor core is arranged in the capacitor chamber 3, and the power module is arranged in the power module installation chamber 2. It should be understood that the cooling baffle here is for the convenience of explaining each structure, and the actual cooling baffle and the structure of each chamber belong to the housing 1 and are integrally cast.
[0032] The power module is fixed to the housing 1 by bolts and other fixings, thereby limiting the position of the power module, thereby forming a cooling chamber between the power module and the cooling partition, and the cooling chamber is used to contain cooling water to cool the power module, capacitor core, etc. (actually also including components such as copper busbars).
[0033] The two electrical chambers (electronic control units) are separated by a retaining wall, on which a connecting water channel 4 is provided, and both ends of the connecting water channel 4 are respectively connected to the cooling chambers of the two electrical chambers, so that the cooling chambers of the two electronic control units can communicate with each other and be connected in series.
[0034] Preferably, a side wall water channel 5 is further provided on the side of the capacitor chamber 3 away from the other capacitor chamber 3, and both capacitor chambers 3 are provided with the side wall water channel 5, so that side wall water channels 5 are respectively provided on both sides of the shell 1, and the side wall water channels 5 are connected with the cooling chamber, specifically, the upper part of the side wall water channel 5 is connected with the cooling chamber (this feature is also integrally cast during the processing of the shell 1). It can be understood that the cooling chamber extends from the upper part of the capacitor to the side of the capacitor, so that the side of the capacitor can be cooled, thereby increasing the cooling area.
[0035] The side wall water channel 5 is also used for water inlet and outlet of the cooling chamber. Specifically, a fluid inlet 6 and a fluid outlet 7 are provided on the shell 1, and the fluid inlet 6 and the fluid outlet 7 are respectively connected to the side wall water channels 5. Thus, the cooling water enters one of the side wall water channels 5 through the fluid inlet 6, and then flows through one of the two cooling chambers, the connecting water channel 4, the other cooling chamber, the other side wall water channel 5, and flows out from the fluid outlet 7 to realize the cooling water circulation.
[0036] Furthermore, in order to further integrate the various structures, the present invention arranges the fluid inlet 6 and the fluid outlet 7 in the horizontal direction (relative to the two longitudinally arranged electrical chambers), so that the overall power component tends to be more "block-shaped" or "square-shaped" rather than "strip-shaped". For ease of understanding, it can be defined that the two electrical chambers are arranged left and right, and the fluid inlet 6 and the fluid outlet 7 are arranged at the upper part or the lower part of the housing 1. See the attached Figure 2-3 The fluid inlet 6 and the fluid outlet 7 are arranged at the lower part of the shell 1, that is, the copper busbar end, that is, the setting direction of the current sensor, thereby integrating with the copper busbar, current sensor and other components to increase the compactness.
[0037] Preferably, a groove is provided on the retaining wall for dividing the two electronic control units, and the groove forms a connecting water channel 4. In order to facilitate the circulation of cooling water, the utility model designs the structure of the connecting water channel 4. In a preferred embodiment, the bottom surface of the groove is located at the same horizontal plane as the cooling baffle, so that the connecting water channel 4 and the bottom surface of the cooling chamber are located at the same horizontal plane. In another preferred embodiment, the bottom surface of the groove is lower than the cooling baffle, so that the bottom surface of the connecting water channel 4 is lower than the bottom surface of the cooling chamber.
[0038] Preferably, the bottom of the shell 1 is an open structure, that is, there is no bottom plate, and sealing is achieved by a cover plate 8, which is fixedly connected to the shell 1 and is made of metal to facilitate heat dissipation of the capacitor inside the cover plate 8. The cover plate 8 is preferably made of aluminum alloy.
[0039] The copper bar is arranged in a manner to fit the capacitor, specifically: the upper and lower parts of the capacitor core are provided with a first copper bar 9 and a second copper bar 10 respectively, and the first copper bar 9 is arranged in a manner to fit the cooling baffle, so that the first copper bar 9 can also dissipate heat through the cooling chamber, and at the same time, the heat conduction distance between the capacitor and the cooling chamber is also reduced; the second copper bar 10 is arranged in a manner to fit the cover plate 8, so that the second copper bar 10 can also dissipate heat through the cover plate 8. The first copper bar 9 and the second copper bar 10 here are the positive copper bar and the negative copper bar, which are not specifically limited, that is, if the first copper bar 9 is the positive copper bar, the second copper bar 10 is the negative copper bar; if the first copper bar 9 is the negative copper bar, the second copper bar 10 is the positive copper bar.
[0040] Furthermore, two sides of the second copper busbar 10 are bent upwards respectively to fit the side wall water channel 5 , thereby further achieving cooling and heat dissipation through the side wall water channel 5 .
[0041] It should be noted that the embodiments of the present invention have better practicability and do not impose any form of limitation on the present invention. Any technician familiar with the field may use the technical content disclosed above to change or modify it into an equivalent effective embodiment. However, any modification or equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A power component for an integrated waterway with dual electric control, characterized in that: The housing comprises two electrical chambers arranged side by side, the electrical chamber comprises a cooling baffle, the cooling baffle separates the electrical chamber into an upper power module installation chamber and a lower capacitor chamber, the capacitor core is arranged in the capacitor chamber, and the power module is arranged in the power module installation chamber; The power module is fixed on the housing so that a cooling chamber is formed between the power module and the cooling baffle, and the cooling chamber is used to contain cooling water to cool the power module and the capacitor core; The two electrical chambers are separated by a baffle wall, a connecting water channel is arranged on the baffle wall, and two ends of the connecting water channel are respectively connected to the cooling chambers of the two electrical chambers.
2. The power assembly of the integrated water channel for dual electric control according to claim 1, characterized in that: A side wall water channel is provided on one side of the capacitor chamber away from the other capacitor chamber, so that the side wall water channels are provided on both sides of the shell respectively; the side wall water channel is communicated with the cooling chamber; The shell is provided with a fluid inlet and a fluid outlet, and the fluid inlet and the fluid outlet are respectively connected to the two side wall water channels, whereby the cooling water enters one of the two side wall water channels through the fluid inlet, and then flows through one of the two cooling chambers, the connecting water channel, the other cooling chamber, the other side wall water channel in sequence, and flows out from the fluid outlet.
3. The power assembly of the integrated water channel for dual electric control according to claim 2, characterized in that: It is defined that the two electrical chambers are arranged left and right, and the fluid inlet and the fluid outlet are arranged at the upper part or the lower part of the shell.
4. The power assembly of the integrated water channel for dual electric control according to claim 1, characterized in that: The retaining wall is provided with a groove, the groove forms the connecting water channel, and the bottom surface of the groove is located at the same horizontal plane as the cooling baffle, so that the connecting water channel and the bottom surface of the cooling chamber are located at the same horizontal plane.
5. The power assembly of the integrated water channel for dual electric control according to claim 1, characterized in that: The retaining wall is provided with a groove, the groove forms the connecting water channel, and the bottom surface of the groove is lower than the cooling baffle, so that the bottom surface of the connecting water channel is lower than the bottom surface of the cooling chamber.
6. The power assembly of the integrated water channel for dual electric control according to claim 2, characterized in that: It also includes a cover plate, the bottom of the shell is an open structure, and the cover plate is fixedly connected to the shell; The cover plate is made of metal.
7. The power assembly of the integrated water channel for dual electric control according to claim 6, characterized in that: The upper part and the lower part of the capacitor core are respectively provided with a first copper bar and a second copper bar, the first copper bar is arranged in contact with the cooling baffle, and the second copper bar is arranged in contact with the cover plate; The first copper bar is a positive copper bar, and the second copper bar is a negative copper bar; or the first copper bar is a negative copper bar, and the second copper bar is a positive copper bar.
8. The power assembly of the integrated water channel for dual electric control according to claim 7, characterized in that: Both sides of the second copper bar are bent upwards respectively to fit the side wall water channel.