Electric conduction piece and charging equipment
By designing the stacked electrical conductors, the insulating surface conducts high power current, the problem of reducing the effective cross-sectional area and bending difficulties in the high-power charging module is solved, and efficient current conduction and flexible application are achieved.
Patent Information
- Application Number
- CN202422271382.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The existing composite copper line in high-power charging modules has reduced effective cross-sectional area, increased resistance, overheating and unable to flexibly bend, limiting its application in short distances or narrow spaces.
An electric conductor is designed, by laminating a plurality of electric conductors in the thickness direction, each of which is provided with an insulating surface and a connecting surface. The insulating surfaces of adjacent sheets are relatively insulated, and the connecting surfaces are electrically connected. The insulating surfaces are used to achieve skin effect to conduct high power current, increase the effective cross-sectional area and facilitate bending.
It realizes efficient conduction of high-power current and reduces heat generation. It is suitable for a variety of usage scenarios, especially short distances and narrow spaces, and is easy to bending.
Smart Images
Figure CN223285394U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electrical equipment, and more specifically, relates to an electrical conductor and a charging device. Background Art
[0002] With the popularization of electric smart cars, high-power charging modules have developed rapidly. In the AC / DC conversion inside the high-power charging modules, composite copper busbars are generally used to transmit high-frequency alternating current.
[0003] For composite copper busbars, the skin effect causes current to flow along the conductor surface, reducing the effective cross-sectional area and increasing resistance. This causes conventional copper busbars to overheat and fail to meet high-power requirements. Furthermore, thicker copper busbars cannot be flexibly bent, significantly limiting their use cases and making them difficult to apply over short distances or in confined spaces. Summary of the Invention
[0004] The purpose of the embodiments of the present application is to provide an electrical conductor and a charging device to solve the technical problem that the existing composite copper busbar is difficult to meet the requirements of high-power alternating current conduction.
[0005] To achieve the above objectives, the technical solution adopted in this application is:
[0006] An electrically conductive member is provided, comprising a plurality of electrically conductive sheets stacked along a thickness direction of the electrically conductive member;
[0007] Any side surface along the thickness direction of any of the electrically conductive sheets includes an insulating surface and a connecting surface;
[0008] The two opposite side surfaces on any two adjacent electrically conductive sheets are respectively a first side surface and a second side surface; wherein the insulating surface of the first side surface and the insulating surface of the second side surface are opposite to and insulated from each other, and the connecting surface of the first side surface and the connecting surface of the second side surface are electrically connected.
[0009] In some embodiments, on the same electrically conductive sheet, the insulating surfaces on different side surfaces are arranged opposite to each other along the thickness direction, and the connecting surfaces on different side surfaces are arranged opposite to each other along the thickness direction.
[0010] In some embodiments, an insulating film is provided between the insulating surface of the first side surface and the insulating surface of the second side surface, and two side surfaces of the insulating film respectively contact and cover the two insulating surfaces.
[0011] In some embodiments, on the same electrically conductive sheet, the thickness of the portion where the insulating surface is located is consistent with the thickness of the portion where the connecting surface is located.
[0012] In some embodiments, an insulating gap is provided between the insulating surface of the first side surface and the insulating surface of the second side surface, and the insulating gap is used to accommodate insulating air.
[0013] In some embodiments, on the same electrically conductive sheet, the thickness of the portion where the insulating surface is located is smaller than the thickness of the portion where the connecting surface is located.
[0014] In some embodiments, on any of the electrically conductive sheets, any of the side surfaces includes two connecting surfaces, and the two connecting surfaces are provided on both sides of the insulating surface along a direction perpendicular to the thickness direction;
[0015] The two connecting surfaces on the first side surface and the two connecting surfaces on the second side surface are opposite to each other in a one-to-one manner and are electrically connected.
[0016] In some embodiments, the electrical conductor further includes two insulating rings, which are respectively pressed onto the electrical conductor and located at positions where the two connecting surfaces are close to the insulating surface.
[0017] In some embodiments, the thickness of the electrically conductive sheet is smaller than the skin depth of the alternating current allowed to flow through the electrically conductive sheet.
[0018] The beneficial effects of the electrical conductive member provided by this application are:
[0019] Compared with the prior art, the electrically conductive component provided by the present application includes a plurality of electrically conductive sheets stacked in a thickness direction, wherein the two opposing side surfaces of any two adjacent electrically conductive sheets are respectively a first side surface and a second side surface, and the insulating surface of the first side surface and the insulating surface of the second side surface are opposite and insulated from each other. In this way, any insulating surface on any side surface of any electrically conductive sheet can serve as a conductor surface to conduct alternating current, making full use of each insulating surface to achieve the skin effect and meet the requirements of high-power current conduction. The effective cross-sectional area of the conductor is increased, the resistance is reduced, the heat generated by the electrically conductive sheet is limited, and any sheet of the stacked plurality of electrically conductive sheets can be easily and flexibly bent, making it suitable for a variety of usage scenarios with different specifications and easy to use in short distances or narrow spaces.
[0020] Another object of the present application is to provide a vehicle, comprising the electrical conductor as described above.
[0021] The beneficial effects of the vehicle provided in this application compared to the prior art are consistent with the beneficial effects of the electrical conductive component provided in this application compared to the prior art, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0023] Figure 1 An exploded view of an electrical conductor provided in an embodiment of the present application;
[0024] Figure 2 An assembly diagram of an electrical conductor provided in an embodiment of the present application;
[0025] Figure 3 An exploded view of an electrical conductor provided in an embodiment of the present application;
[0026] Figure 4 This is an assembly diagram of the electrical conductive component provided in an embodiment of the present application.
[0027] Among them, the reference numerals in the figures are:
[0028] 100. Electrically conductive parts;
[0029] 101. Electrically conductive sheet; 102. Insulating film; 103. Insulating ring;
[0030] 1011, insulating surface; 1012, connecting surface; 1013, through hole. DETAILED DESCRIPTION
[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.
[0032] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.
[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 cannot be understood as a limitation on this application.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.
[0035] The electrical conductive member 100 and the charging device provided in the embodiment of the present application are now described.
[0036] See also Figures 1 to 4 As shown, the electrically conductive member 100 provided in the embodiment of the present application includes a plurality of electrically conductive sheets 101 stacked along its thickness. The electrically conductive sheets 101 are sheet-like members having a certain extended area and a certain thickness, with a large ratio of extended area to thickness. They are electrically conductive and may be thin copper, aluminum, or nickel sheets.
[0037] Any side surface along the thickness direction of any electrically conductive sheet 101 includes an insulating surface 1011 and a connecting surface 1012. The two opposing side surfaces of any two adjacent electrically conductive sheets 101 are respectively a first side surface and a second side surface; the insulating surface 1011 of the first side surface and the insulating surface 1011 of the second side surface are opposite and insulated from each other, and the connecting surface 1012 of the first side surface and the connecting surface 1012 of the second side surface are electrically connected.
[0038] Because the insulating surface 1011 on the first side and the insulating surface 1011 on the second side are opposite and insulated from each other, any insulating surface 1011 on any side of any electrically conductive sheet 101 can serve as a conductor surface to conduct alternating current. This fully utilizes each insulating surface 1011 to achieve the skin effect and meet the requirements of conducting high-power current. The effective cross-sectional area of the conductor is increased, the resistance is reduced, the heat generated by the electrically conductive sheet 101 is limited, and any sheet in the stacked plurality of electrically conductive sheets 101 can be easily and flexibly bent, making it suitable for a variety of usage scenarios with different specifications and easy to use in short distances or narrow spaces.
[0039] For example, Figure 1 As shown, multiple electrically conductive sheets 101 can be uniformly bent to form a Z-shape, an L-shape, etc. The specific shape of the electrically conductive member 100 can be selected based on the size and shape of the application space, and this embodiment of the application does not impose any specific limitation on this.
[0040] The connection surface 1012 on the first side and the connection surface 1012 on the second side are electrically connected, that is, any two adjacent electrically conductive sheets 101 can be electrically connected through the connection surfaces 1012 thereon. In this way, high-power current is conducted through the multiple insulating surfaces 1011, and the multiple electrically conductive sheets 101 are electrically connected through the connection surfaces 1012, and current is input and output from the electrically conductive component 100.
[0041] In some embodiments, on the same electrically conductive sheet 101, insulating surfaces 1011 on different sides are arranged opposite each other along the thickness direction, and connecting surfaces 1012 on different sides are arranged opposite each other along the thickness direction. This allows the specifications of multiple electrically conductive sheets 101 to be standardized, so that the areas and proportions of the insulating surfaces 1011 on the sheets are consistent, and the areas and proportions of the connecting surfaces 1012 on the sheets are consistent. This also allows the insulating surfaces 1011 and connecting surfaces 1012 to be positioned in the same location, thereby reducing the manufacturing cost of the electrically conductive sheets 101.
[0042] Of course, in other embodiments, on the same electrically conductive sheet 101 , the insulating surfaces 1011 on different sides may be staggered in a direction perpendicular to the thickness direction, and the connecting surfaces 1012 on different sides may be staggered in a direction perpendicular to the thickness direction.
[0043] In some embodiments, an insulating film 102 is provided between the insulating surface 1011 on the first side and the insulating surface 1011 on the second side, and the two side surfaces of the insulating film 102 respectively contact and cover the two insulating surfaces 1011, so that the two opposite insulating surfaces 1011 are insulated and both insulating surfaces 1011 can conduct current using the skin effect.
[0044] In some embodiments, on the same electrically conductive sheet 101, the thickness of the portion where the insulating surface 1011 is located is consistent with the thickness of the portion where the connecting surface 1012 is located. An insulating film 102 is disposed between two opposing insulating surfaces 1011, and through-holes 1013 may be provided on two opposing connecting surfaces 1012. Current conduction between adjacent electrically conductive members 100 is achieved by inserting an electrical connector through the through-holes 1013 and pressing any two adjacent connecting surfaces 1012 together to maintain contact.
[0045] In some embodiments, an insulating gap is provided between the insulating surface 1011 on the first side and the insulating surface 1011 on the second side. The insulating gap is used to accommodate insulating air. The air is used for insulation, so that the two opposing insulating surfaces 1011 can conduct current using the skin effect.
[0046] Furthermore, on the same electrically conductive sheet 101, the thickness of the portion where the insulating surface 1011 is located is smaller than the thickness of the portion where the connecting surface 1012 is located. An insulating gap is provided between the two opposing insulating surfaces 1011, while through holes 1013 can be provided on the two opposing connecting surfaces 1012. By inserting an electrical connector through the through holes 1013 and pressing any two adjacent connecting surfaces 1012 together to maintain contact, current conduction between adjacent electrically conductive members 100 is achieved.
[0047] The electrical connector may be a metal threaded connector or plug connector, such as a screw or a bolt.
[0048] In some embodiments, any side surface of any electrically conductive sheet 101 includes two connection surfaces 1012. These two connection surfaces 1012 are disposed on either side of the insulating surface 1011 in a direction perpendicular to the thickness. The two connection surfaces 1012 on the first side surface and the two connection surfaces 1012 on the second side surface are one-to-one opposite and electrically connected. Thus, current flows into and out of the same electrically conductive sheet 101 via the two connection surfaces 1012.
[0049] In some embodiments, the electrically conductive component 100 further includes two insulating rings 103, which are respectively pressed onto the electrically conductive component 100 and are respectively located at positions where the two connecting surfaces 1012 are adjacent to the insulating surface 1011. By using the insulating rings 103 to fasten multiple electrically conductive components 100 and placing them adjacent to the insulating surface 1011, the fit of the insulating film 102 or the insulating gap can be further strengthened.
[0050] The insulating ring 103 may be formed by winding multiple layers of adhesive tape. Alternatively, multiple electrically conductive members 100 may be bonded together using adhesive.
[0051] In some embodiments, the thickness of the electrically conductive sheet 101 is smaller than the skin depth of the alternating current allowed to flow through the electrically conductive sheet 101. In this way, the alternating current allowed to flow through the electrically conductive sheet 101 can fully utilize the material in the thickness direction and the two side surfaces along the thickness direction to conduct current, further increasing the effective cross-sectional area of the electrically conductive sheet 101.
[0052] The electrically conductive member 100 provided in the embodiment of the present application may be manufactured by the following steps:
[0053] First, the skin depth of the current in the electrically conductive sheet 101 is calculated based on the desired frequency of the alternating current. For example, if the desired frequency of the alternating current is 10 kHz, the skin depth in the copper electrically conductive sheet 101 is approximately 0.66 mm. The calculation method is well known and will not be described in detail in this embodiment.
[0054] Secondly, the thickness of each electrically conductive component 100 is determined according to the skin depth, and the thickness can be smaller than the skin depth. For example, if the skin depth is about 0.66 mm, the thickness of each electrically conductive component 100 can be selected to be 0.5 mm.
[0055] Next, the cross-sectional area of a single electrical conductor 100 and the required number of electrical conductors 100 are calculated according to the total current to be conducted.
[0056] Furthermore, the size of the insulating film 102 is determined according to the design size of the electrically conductive member 100, such that the width of the insulating film 102 is consistent with that of the electrically conductive member 100 and the length of the insulating film 102 is shorter than that of the electrically conductive member 100. The electrically conductive member 100 and the insulating film 102 are stacked, with one insulating film 102 placed between two adjacent electrically conductive members 100.
[0057] Finally, insulating rings 103 are used to bind and fix the stacked electrically conductive member 100 and insulating film 102 at both ends of the assembly to form a whole.
[0058] Another object of the embodiment of the present application is to provide a charging device, which includes the above-mentioned electrical conductor 100.
[0059] Among them, the charging device may include a high-power charging module, and specifically but not limited to, the AC / DC converter inside the high-power charging module can use the electrical conductive member provided in the embodiment of the present application to transmit high-frequency alternating current.
[0060] Since the charging device provided in the embodiments of the present application utilizes the electrically conductive member provided in the present application, any side surface along the thickness direction of any electrically conductive sheet 101 includes an insulating surface 1011 and a connecting surface 1012. The two opposing side surfaces of any two adjacent electrically conductive sheets 101 are respectively a first side surface and a second side surface; wherein the insulating surface 1011 of the first side surface and the insulating surface 1011 of the second side surface are opposed to and insulated from each other, and the connecting surface 1012 of the first side surface is electrically connected to the connecting surface 1012 of the second side surface.
[0061] Because the insulating surface 1011 on the first side and the insulating surface 1011 on the second side of the electrically conductive member are opposite and insulated from each other, any insulating surface 1011 on any side of any electrically conductive sheet 101 can serve as a conductor surface to conduct alternating current. This fully utilizes each insulating surface 1011 to achieve the skin effect and meet the requirements for conducting high-power current. The effective cross-sectional area of the conductor is increased, the resistance is reduced, the heat generated by the electrically conductive sheet 101 is limited, and any of the stacked electrically conductive sheets 101 can be easily and flexibly bent, making it suitable for a variety of different usage scenarios and easy to use in short distances or narrow spaces. Furthermore, it can be used in charging devices of different specifications, and the size of the charging device can be miniaturized.
[0062] The charging device provided in the embodiment of the present application can be a charging pile for charging a device to be charged, for example, the device to be charged can be a vehicle, or the charging device provided in the embodiment of the present application can be a charging device that can be installed on an operational device such as a vehicle to provide charging for other devices.
[0063] Since each insulating surface 1011 can be fully utilized to achieve the skin effect and meet the conduction of high-power current, any piece of the stacked multiple electrically conductive sheets 101 can be easily and flexibly bent and can be applied to various operational devices of different specifications.
[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. An electrical conductor, characterized in that: The electrically conductive member includes a plurality of electrically conductive sheets stacked along the thickness direction thereof; Any side surface along the thickness direction of any of the electrically conductive sheets includes an insulating surface and a connecting surface; The two opposite side surfaces on any two adjacent electrically conductive sheets are respectively a first side surface and a second side surface; wherein the insulating surface of the first side surface and the insulating surface of the second side surface are opposite to and insulated from each other, and the connecting surface of the first side surface and the connecting surface of the second side surface are electrically connected.
2. The electrical conductor according to claim 1, wherein: On the same electrically conductive sheet, the insulating surfaces on different side surfaces are arranged opposite to each other along the thickness direction, and the connecting surfaces on different side surfaces are arranged opposite to each other along the thickness direction.
3. The electrical conductor according to claim 1 or 2, wherein: An insulating film is provided between the insulating surface of the first side surface and the insulating surface of the second side surface, and two side surfaces of the insulating film respectively contact and cover the two insulating surfaces.
4. The electrical conductor according to claim 3, wherein: On the same electrically conductive sheet, the thickness of the portion where the insulating surface is located is consistent with the thickness of the portion where the connecting surface is located.
5. The electrical conductor according to claim 1 or 2, wherein: An insulating gap is provided between the insulating surface of the first side surface and the insulating surface of the second side surface, and the insulating gap is used to accommodate insulating air.
6. The electrical conductor according to claim 5, wherein: On the same electrically conductive sheet, the thickness of the portion where the insulating surface is located is smaller than the thickness of the portion where the connecting surface is located.
7. The electrical conductor according to any one of claims 1, 2, 4 and 6, characterized in that: On any of the electrically conductive sheets, any of the side surfaces includes two connecting surfaces, and the two connecting surfaces are arranged on both sides of the insulating surface along a direction perpendicular to the thickness direction; The two connecting surfaces on the first side surface and the two connecting surfaces on the second side surface are opposite to each other in a one-to-one manner and are electrically connected.
8. The electrical conductor according to claim 7, wherein: The electrical conductor also includes two insulating rings, which are respectively pressed onto the electrical conductor and located at positions where the two connecting surfaces are close to the insulating surface.
9. The electrical conductor according to any one of claims 1, 2, 4 and 6, characterized in that: The thickness of the electrically conductive sheet is smaller than the skin depth of the alternating current allowed to flow through the electrically conductive sheet.
10. A charging device, characterized in that: The charging device comprises the electrical conductor according to any one of claims 1-9.