Electric connection bar, power distribution device, electric control system and vehicle

Abstract

The utility model relates to the technical field of vehicle electric control systems, in particular to an electric connection bar, a power distribution device, an electric control system and a vehicle. The electric connection bar comprises at least two first power connection sections, wherein each first power connection section is provided with at least one first contact point used for being electrically connected with an electric part; one end of the first connection section is electrically connected with at least one first power connection section, the other end of the first connection section is electrically connected with the other first power connection sections, and the middle part of the first connection section protrudes towards the side away from the electrical part. According to the electrical connection bar, the first contact points on the first power connection section are electrically connected with the electrical parts, and then the first connection section is used for electrically connecting the at least two electrical parts, so that the number of the electrical connection points is effectively reduced; and meanwhile, the accommodating cavity formed by the bulge of the first connecting section can be utilized to avoid the electrical part, so that the influence of the electrical connecting bar on the arrangement in the distribution box is further reduced.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle electronic control systems, and in particular to an electrical connection bar, a power distribution device, an electronic control system and a vehicle. Background Art

[0002] The high-voltage distribution box is a key component in the high-voltage system of new energy vehicles, especially the high-voltage distribution box in the power battery. The layout space is often very limited, but it is still necessary to arrange more high-voltage electrical components and electrical connection bars to realize the high-voltage power distribution function. At present, the industry's solution is generally to directly connect two electrical connection points through an electrical connection bar. This connection method has many connection points, which leads to a complex structure in the distribution box. The industry's solution also uses metal electrical connection bars to connect multiple electrical connection points. Although the number of connection points is reduced, the overall volume is too large, which affects the structural layout in the distribution box and reduces the electrical reliability of the entire electronic control system. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides an electrical connection bar, a power distribution device, an electric control system and a vehicle.

[0004] In a first aspect, the present application provides an electrical connection bar, comprising:

[0005] At least two first power connection sections, each of which is provided with at least one first contact point for electrically connecting to an electrical component;

[0006] A first connecting section, one end of which is electrically connected to at least one of the first power connection sections, and the other end of which is electrically connected to the remaining first power connection sections, and a middle portion of the first connecting section protrudes toward a side away from the electrical component to form a receiving cavity for receiving at least part of the electrical component.

[0007] Optionally, the first connecting section includes a cooling portion and connecting portions corresponding to at least two of the first power connection sections one by one, a first end of each of the connecting portions is connected to the cooling portion, and a second end of each of the connecting portions is electrically connected to the first power connection section corresponding thereto;

[0008] The first end of each of the connecting parts extends toward a side away from the electrical component, and at least two of the connecting parts and the cooling part enclose the accommodating cavity; the cooling part is used to connect a cooling device.

[0009] Optionally, a contact plane for connecting to a cooling device is formed on a side of the cooling portion away from the electrical component.

[0010] Optionally, a thermal pad is provided on the contact plane.

[0011] Optionally, the connecting portion is perpendicular to the cooling portion.

[0012] Optionally, the first contact point is a bolt hole, and the first contact point is electrically connected to the electrical component via a connecting bolt;

[0013] In the axial direction of the connecting bolt, the distance between the first end and the second end of any connecting portion is greater than the height of the head of the connecting bolt.

[0014] Optionally, it further comprises at least one second power connection section and a second connection section corresponding to the second power connection section one by one;

[0015] The second power connection section is provided with at least one second contact point for electrically connecting to the electrical component;

[0016] The second power connection section is electrically connected to any of the first power connection sections via the second connection section corresponding thereto.

[0017] In a second aspect, the present application provides a power distribution device, comprising a plurality of electrical components, a power distribution box, and at least one electrical connection bar as described above;

[0018] The electrical components and the electrical connection bar are both installed in the distribution box;

[0019] The first power connection section is electrically connected to the electrical component via the first contact point.

[0020] In a third aspect, the present application provides an electric control system, comprising a cold plate and the power distribution device as described above, wherein an opening is provided on the bottom surface of the power distribution box, the cooling part is located in the opening, and the cooling part is arranged in close contact with the cold plate.

[0021] In a fourth aspect, the present application provides a vehicle comprising the electronic control system as described above.

[0022] Compared with the prior art, the technical solution provided by the embodiments of the present application has the following advantages:

[0023] The electrical connection bar provided in the present application is electrically connected to the electrical component via the first contact point on the first power connection section, and then at least two electrical components are electrically connected using the first connection section. That is to say, the electrical connection of two, three or more electrical components can be achieved using one first connection section, thereby effectively reducing the number of electrical connection points; at the same time, the accommodating cavity formed by the protrusion of the first connection section can be used to avoid the electrical component, thereby further reducing the impact of the electrical connection bar on the internal layout of the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 This is a schematic diagram of the structure of the power distribution device described in an embodiment of the present application;

[0027] Figure 2 It is a structural explosion diagram of the power distribution device described in the embodiment of the present application;

[0028] Figure 3 This is a schematic diagram of the structure of the first electrical connection bar described in an embodiment of the present application;

[0029] Figure 4 This is a schematic diagram of the structure of the second electrical connection bar described in an embodiment of the present application;

[0030] Figure 5 This is a schematic diagram of the structure of the third electrical connection bar described in the embodiment of the present application;

[0031] Figure 6 This is a schematic diagram of the structure of the fourth electrical connection bar described in an embodiment of the present application.

[0032] Among them, 11, first power connection section; 111, first contact point; 12, first connection section; 121, cooling part; 122, connection part; 123, thermal pad; 13, second power connection section; 131, second contact point; 14, second connection section; 2, electrical parts; 3, connecting bolts; 4, distribution box. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0035] Reference Figures 1 to 6As shown, an electrical connection bar provided in this embodiment includes: at least two first power connection sections 11, each of which is provided with at least one first contact point 111 for electrically connecting to the electrical component 2; a first connection section 12, one end of the first connection section 12 is electrically connected to at least one first power connection section 11, and the other end is electrically connected to the remaining first power connection sections 11, and the middle part of the first connection section 12 protrudes toward a side away from the electrical component 2 to form a receiving cavity for receiving at least part of the electrical component 2.

[0036] The electrical connection row provided in this embodiment is electrically connected to the electrical component 2 via the first contact point 111 on the first power connection section 11, and then at least two electrical components 2 are electrically connected using the first connection section 12. That is, the electrical connection of two, three or more electrical components 2 can be achieved using one first connection section 12, thereby effectively reducing the number of electrical connection points; at the same time, the accommodating cavity formed by the protrusion of the first connection section 12 can be used to avoid the electrical component 2, thereby further reducing the influence of the electrical connection row on the internal layout of the distribution box 4.

[0037] Continue to refer to Figures 3 to 6 As shown, the first connecting section 12 includes a cooling portion 121 and connecting portions 122 corresponding to at least two first power connection sections 11, the first end of each connecting portion 122 is connected to the cooling portion 121, and the second end of each connecting portion 122 is electrically connected to the first power connection section 11 corresponding thereto; the first end of each connecting portion 122 extends toward a side away from the electrical component 2, and at least two connecting portions 122 and the cooling portion 121 are enclosed to form a receiving cavity; the cooling portion 121 is used to connect a cooling device; since the first connecting section 12 usually needs to electrically connect multiple electrical components 2, the first connecting section 12 often appears in a high temperature state, and forming the cooling portion 121 on the first connecting section 12 can effectively improve the reliability and stability of the entire power distribution device, wherein the cooling device can be a cold plate, a copper tube, a fan or other structures, as long as it can cool down the cooling portion 121.

[0038] Continue to refer to Figures 3 to 6 As shown, a contact plane for connecting to a cooling device is formed on one side of the cooling portion 121 away from the electrical component 2; such a configuration can increase the cooling area of ​​the cooling portion 121, improve the cooling efficiency of the entire electrical connection row, and also make it easier to adapt to various cooling devices, for example, the cooling portion 121 can be fitted with a cold plate, or copper tubes can be arranged on the cooling portion 121, or the cooling portion 121 can be arranged directly opposite to the air outlet of a fan.

[0039] In some embodiments, a thermal pad 123 is provided on the contact plane; the thermal pad 123 can specifically be thermally conductive cotton, thermally conductive silicone grease or metal material, as long as the cooling efficiency of the electrical connection row can be improved; specifically, the cooling device can be a cold plate, and the contact plane on the cooling part 121 is bonded to the cooling surface of the cold plate through the thermal pad 123. When the cold plate is working, the low temperature can be quickly transferred to the contact plane using the thermal pad 123, and the heat on the contact plane can also be quickly transferred to the cold plate using the thermal pad 123.

[0040] Continue to refer to Figures 1 to 6 As shown, the connecting portion 122 is perpendicular to the cooling portion 121; it should be understood that the extension direction of the connecting portion 122 is the same as the installation direction of the electrical connection row, and is also the same as the installation direction of the electrical component 2. That is to say, by arranging the connecting portion 122 perpendicularly to the cooling portion 121, it can fit more closely with the side wall of the electrical component 2, and can reduce interference with nearby electrical components 2 and other structures when loading and unloading the electrical connection row.

[0041] In some embodiments, the first contact point 111 is a bolt hole, and the first contact point 111 is electrically connected to the electrical component 2 through the connecting bolt 3; in the axial direction of the connecting bolt 3, the distance between the first end and the second end of any connecting portion 122 is greater than the height of the head of the connecting bolt 3; that is, when the connecting bolt 3 is used to connect the electrical connection row and the electrical component 2, it can be ensured that the head of the connecting bolt 3 will not protrude from the cooling portion 121, thereby avoiding the connecting bolt 3 from interfering with the fit between the cooling portion 121 and the cold plate; at the same time, the connecting bolt 3 connecting the electrical connection row and the electrical component 2 is not only very reliable and stable, but also can utilize the conductivity of the connecting bolt 3 itself to achieve electrical connection between the electrical connection row and the electrical component 2; simplifying the number of parts of the entire distribution device and reducing the complexity inside the distribution box 4.

[0042] Furthermore, the first contact point 111 and the second contact point 131 may also be connected to the connection points on the electrical component 2 by welding, bonding, riveting, etc., as long as the height of the connection can be ensured not to protrude beyond the cooling portion 121 .

[0043] In some embodiments, the electrical connection row further includes at least one second electrical connection segment 13 and a second connection segment 14 corresponding to the second electrical connection segment 13; the second electrical connection segment 13 is provided with at least one second contact point 131 for electrically connecting to the electrical component 2; the second electrical connection segment 13 is electrically connected to any first electrical connection segment 11 through the second connection segment 14 corresponding thereto; for details, please refer to Figure 3As shown, each first power connection section 11 can be extended to form a second power connection section 13 electrically connected thereto, that is, some electrical components 2 can be directly electrically connected to the electrical components 2 on the first power connection section 11 through the second power connection section 13 and the second connection section 14, without passing through the cooling section 121 and the connection section 122; in this way, the design can be performed according to the connection requirements and specific positions of the electrical components 2 in the distribution box 4, thereby further improving the expansibility and applicability of the entire electrical connection row.

[0044] On the second aspect, the present application provides a power distribution device, comprising a plurality of electrical components 2, a distribution box 4 and at least one electrical connection bar as described above; the electrical components 2 and the electrical connection bar are both installed in the distribution box 4; the first power connection section 11 is electrically connected to the electrical component 2 via a first contact point 111; the power distribution device can utilize the electrical connection bar to simultaneously connect electrical connection points on a plurality of electrical components 2, thereby effectively reducing the number of connection points and simplifying the internal structure of the power distribution device.

[0045] On the third aspect, the present application provides an electric control system, including a cold plate and the power distribution device as described above, wherein the bottom surface of the distribution box 4 is provided with an opening, the cooling part 121 is located in the opening, and the cooling part 121 is arranged in close contact with the cold plate; wherein the cooling part 121 can be flush with the bottom surface of the distribution box 4, and the cooling part 121 and the distribution box 4 are simultaneously fixed to the cold plate to ensure overall stability and cooling efficiency.

[0046] In a fourth aspect, the present application provides a vehicle comprising the electronic control system as described above.

[0047] The specific implementation method and implementation principle are the same as those in the above embodiment, and can bring the same or similar technical effects, which will not be described one by one here. For details, please refer to the description of the above electrical connection bar embodiment.

[0048] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0049] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrical connection bar, characterized in that: include: At least two first power connection sections, each of which is provided with at least one first contact point for electrically connecting to an electrical component; A first connecting section, one end of which is electrically connected to at least one of the first power connection sections, and the other end of which is electrically connected to the remaining first power connection sections, and a middle portion of the first connecting section protrudes toward a side away from the electrical component to form a receiving cavity for receiving at least part of the electrical component.

2. The electrical connection bar according to claim 1, characterized in that: The first connecting section includes a cooling portion and connecting portions corresponding to at least two of the first power connection sections one by one, a first end of each of the connecting portions is connected to the cooling portion, and a second end of each of the connecting portions is electrically connected to the first power connection section corresponding thereto; The first end of each of the connecting parts extends toward a side away from the electrical component, and at least two of the connecting parts and the cooling part enclose the accommodating cavity; the cooling part is used to connect a cooling device.

3. The electrical connection bar according to claim 2, characterized in that: A contact plane for connecting a cooling device is formed on a side of the cooling portion away from the electrical component.

4. The electrical connection bar according to claim 3, characterized in that: A heat-conducting pad is arranged on the contact plane.

5. The electrical connection bar according to claim 3, characterized in that: The connecting portion is perpendicular to the cooling portion.

6. The electrical connection bar according to claim 2, characterized in that: The first contact point is a bolt hole, and the first contact point is electrically connected to the electrical component through a connecting bolt; In the axial direction of the connecting bolt, the distance between the first end and the second end of any connecting portion is greater than the height of the head of the connecting bolt.

7. The electrical connection bar according to any one of claims 1 to 6, characterized in that: It also includes at least one second power connection section and a second connecting section corresponding to the second power connection section one by one; The second power connection section is provided with at least one second contact point for electrically connecting to the electrical component; The second power connection section is electrically connected to any of the first power connection sections via the second connection section corresponding thereto.

8. A power distribution device, characterized in that: comprising a plurality of electrical components, a distribution box and at least one electrical connection bar as claimed in any one of claims 2 to 7; The electrical components and the electrical connection bar are both installed in the distribution box; The first power connection section is electrically connected to the electrical component via the first contact point.

9. An electronic control system, characterized in that: It comprises a cold plate and the power distribution device as claimed in claim 8, wherein the bottom surface of the power distribution box is provided with an opening, the cooling part is located in the opening, and the cooling part is arranged in close contact with the cold plate.

10. A vehicle, characterized in that: Comprising the electronic control system as claimed in claim 9.

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