Novel high-voltage power distribution circuit board
By employing printed circuit board structure and surface mount technology on the circuit board, the compact arrangement and reliable connection of components are achieved, solving the problems of unreasonable layout and unreliable connection of existing power distribution circuit boards, improving the reliability and consistency of the circuit board, and making it suitable for electric vehicles and electric ships.
Patent Information
- Application Number
- CN202520334839.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing power distribution circuit boards suffer from unreasonable component layout, unreliable connection methods, and limited functionality, resulting in large circuit board size and unstable power transmission, making it difficult to meet complex power demand.
The circuit board structure is adopted, and the components and connecting copper busbars are set by surface mounting and fixed by solder pads, which realizes the compact arrangement and reliable connection of components. Combined with high-quality materials and advanced manufacturing process, the circuit connection ports and interfaces are rationally distributed.
It enables automated component installation, improves circuit board reliability and consistency, reduces size, lowers failure probability, and is suitable for use in space-constrained electric vehicles and electric ships.
Smart Images

Figure CN223872471U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the PDU power distribution technical field of electric vehicle, and relates to a novel high voltage power distribution circuit board. BACKGROUND
[0002] In the power system of electric vehicles and electric ships, the power distribution circuit board plays a crucial role, which is responsible for distributing and managing electric energy to ensure the normal operation of various electrical equipment. However, the existing power distribution circuit board has some problems, such as unreasonable component layout, leading to large circuit board size; unreliable connection method affecting the stability of power transmission; and relatively single function, making it difficult to meet the growing complex power demand. SUMMARY
[0003] To solve the above technical problems, the utility model adopts the following technical scheme:
[0004] A novel high voltage power distribution circuit board, comprising: a circuit board adopting a printed circuit board structure, a plurality of components for realizing power distribution function and a connecting copper bar for realizing electrical connection between components are arranged on the circuit board; the components and the connecting copper bar are arranged on the circuit board by means of patch.
[0005] A plurality of solder pads for realizing component arrangement are pre-set on the circuit board, and each component is fixedly arranged on the corresponding solder pad position.
[0006] The components on the circuit board include but are not limited to: main positive relay, pre-charging relay and pre-charging resistor; the relay control line and the circuit total voltage collection part are wired on the circuit board and led to the corresponding position.
[0007] The utility model has the beneficial effects that:
[0008] Compared with the prior art, the installation of components on the power distribution circuit board structure of the utility model can be realized by machine operation (SMT patch, wave soldering), without the need for excessive manual intervention, which can ensure product consistency and make the arrangement distance between components more compact, so that the overall layout is more regular and reasonable, effectively reducing the size of the circuit board, making it more suitable for installation in electric vehicles and electric ships with limited space, and the components are fixed by solder pads and the connecting copper bar is arranged by patching, greatly improving the reliability of circuit connection and reducing the probability of failure. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 is a structural schematic view of the power distribution circuit board of the utility model. DETAILED DESCRIPTION
[0010] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited to the example embodiments disclosed herein. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.
[0011] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 present application.
[0012] In addition, the terms "first", "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.
[0013] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0014] Please refer to Figure 1 A novel high-voltage power distribution circuit board, comprising: a circuit board 5, the circuit board 5 adopts a printed circuit board structure, a plurality of components 6 for realizing power distribution function and a connecting copper bar 7 for realizing electrical connection between the components 6 are arranged on the circuit board;
[0015] Both component 6 and connecting copper busbar 7 are mounted on circuit board 5 via surface mount technology. Component 6 on circuit board 5 includes, but is not limited to: main positive relay, pre-charge relay and pre-charge resistor; relay control lines and circuit total voltage acquisition parts are routed on circuit board 5 and led to corresponding positions; this structural arrangement saves the time of manual screw fastening, ensures product consistency, and allows for a more compact arrangement between components 6, making the overall layout more regular and reasonable, effectively saving materials and labor, and making the overall structure and process cost more advantageous.
[0016] Furthermore, the circuit board 5 has a plurality of pads pre-set for arranging components 6, and each component 6 is fixedly set on the corresponding pad position; this arrangement can reduce the processing difficulty of surface mount processing of components 6 and connecting copper busbars 7, and effectively improve the overall processing efficiency.
[0017] Circuit Board 5: Circuit Board 5 is manufactured using high-quality materials and advanced manufacturing processes to ensure that its electrical and mechanical performance meets the requirements. The layout design of Circuit Board 5 fully considers the functions and connections of each component, rationally distributing the ports connected to various circuits, relay control interfaces, and detection interfaces on the circuit board to facilitate the connection of external circuits and the transmission of internal signals.
[0018] It should also be noted that, in this document, relational terms such as "first" and "second" are used only 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.
[0019] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A novel high-voltage power distribution circuit board, characterized in that, include: The circuit board adopts a printed circuit board structure. The circuit board has multiple components for power distribution and connecting copper busbars for electrical connection between the components. The components and connecting copper busbars are mounted on the circuit board by surface mounting.
2. The novel high-voltage power distribution circuit board according to claim 1, characterized in that, The circuit board has multiple pre-set pads for arranging components, and each component is fixedly positioned on its corresponding pad.
3. The novel high-voltage power distribution circuit board according to claim 1, characterized in that, The components on the circuit board include, but are not limited to: the main positive relay, the pre-charge relay, and the pre-charge resistor; the relay control lines and the total circuit voltage acquisition section are routed on the circuit board and led to the corresponding locations.