Wiring structure, hybrid box and automobile

Abstract

The application relates to a wiring structure, a hybrid box and an automobile, which comprise a wiring seat; a motor copper bar is arranged on the wiring seat; an electric control copper bar is arranged on the wiring seat and is in contact with the motor copper bar; and an elastic compression assembly is arranged on the wiring seat and elastically abuts against the motor copper bar, so as to elastically compress the motor copper bar and the electric control copper bar. On one hand, the elastic compression force can keep the motor copper bar and the electric control copper bar reliably compressed at all times, thereby improving the connection reliability, avoiding the generation of a gap between the motor copper bar and the electric control copper bar due to bolt loosening, and preventing a safety accident caused by the increase of the resistance and the subsequent heating and ablation; on the other hand, the motor copper bar and the electric control copper bar are connected by the elastic compression force, and bolt avoiding holes do not need to be arranged on the motor copper bar and the electric control copper bar, so that the motor copper bar and the electric control copper bar can keep sufficient contact area, the size design can be smaller on the basis of meeting the current-carrying capacity, the occupied installation space is reduced, and thus the miniaturization design of the hybrid box is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of new energy vehicles, and in particular to a wiring structure, a hybrid gearbox, and a vehicle. Background Technology

[0002] In recent years, with the booming development of the new energy vehicle industry, higher requirements have been placed on the reliability and stability of new energy vehicles. In the hybrid transmission of new energy vehicles, the wiring structure of the electronic control copper busbar and the motor copper busbar is involved. In related technologies, the electronic control copper busbar and the motor copper busbar are usually connected by bolts to achieve wiring.

[0003] However, bolted connections are prone to loosening and connection failure due to a decrease in the residual torque of the bolts. This can lead to gaps between the electrical control busbar and the motor busbar, increasing resistance and potentially causing overheating and burning. Furthermore, bolted connections require both the electrical control busbar and the motor busbar to have large bolt clearance holes, and to meet current carrying capacity requirements, the size of both the electrical control busbar and the motor busbar needs to be increased, resulting in a large installation space requirement and hindering the miniaturization design of the hybrid gearbox. Summary of the Invention

[0004] Therefore, it is necessary to provide a wiring structure, hybrid box, and automobile to address the problems of poor connection reliability, safety hazards, and large installation space occupation in existing technologies.

[0005] A first aspect of this application provides a wiring structure comprising:

[0006] Terminal block;

[0007] Motor copper busbar, the motor copper busbar being disposed on the terminal block;

[0008] An electrically controlled copper busbar, wherein the electrically controlled copper busbar is disposed on the terminal block and contacts the motor copper busbar; and...

[0009] An elastic clamping assembly is disposed on the terminal block and elastically abuts against the motor copper busbar to elastically clamp the motor copper busbar and the electrical control copper busbar.

[0010] In this wiring structure, the motor copper busbar and the electronic control copper busbar are installed onto the terminal block, and then the motor copper busbar is elastically pressed against the elastic clamping component on the terminal block. The elastic pressure of the clamping component effectively compresses the motor and electronic control copper busbars, thus achieving wiring between them. Compared to the bolted connection method in existing technologies, this approach offers several advantages. First, the elastic pressure ensures reliable compression between the motor and electronic control copper busbars, improving connection reliability and preventing gaps caused by loose bolts, which could lead to increased resistance and overheating / burning. Second, the elastic pressure eliminates the need for bolt clearance holes on the motor and electronic control copper busbars, ensuring sufficient contact area. This allows for a smaller size design while maintaining current carrying capacity, reducing installation space and contributing to the miniaturization of the hybrid gearbox.

[0011] The technical solution of this application will be further described below:

[0012] In one embodiment, the elastic clamping assembly includes a pressure block, an elastic element, and a positioning plug. One end of the elastic element is connected to the pressure block so that the pressure block elastically abuts against the motor copper busbar. The other end of the elastic element is connected to the positioning plug, which is used for fixed installation.

[0013] In one embodiment, the terminal block includes a base body and a positioning sleeve, the positioning sleeve being disposed on the base body, and the pressure block and the elastic element being movably disposed within the cavity of the positioning sleeve.

[0014] In one embodiment, a slot is defined between the base body and the positioning sleeve, the motor busbar has a first terminal and the electrical control busbar has a second terminal, and both the first terminal and the second terminal are inserted into the slot and stacked along the width direction of the slot.

[0015] In one embodiment, the first terminal has a first positioning through hole, the second terminal has a second positioning through hole that aligns with the first positioning through hole, and the side of the pressure block opposite to the elastic member has a positioning pin protruding therefrom, the positioning pin being inserted into the first positioning through hole and the second positioning through hole.

[0016] In one embodiment, the end of the positioning pin away from the pressure block has an inlet portion.

[0017] In one embodiment, the motor busbar is further provided with a bent portion, which is connected to one end of the first terminal.

[0018] In one embodiment, the base body is provided with a first limiting baffle and a second limiting baffle spaced apart from each other. The first limiting baffle and the second limiting baffle surround the outer periphery of the slot. The first limiting baffle is limited and engaged with one side of the width direction of the motor copper busbar and the electronic control copper busbar, and the second limiting baffle is limited and engaged with the other side of the width direction of the motor copper busbar and the electronic control copper busbar.

[0019] A second aspect of this application also provides a hybrid box, comprising:

[0020] The middle shell of the hybrid gearbox;

[0021] The rear housing of the hybrid gearbox; and,

[0022] As described above, in the wiring structure, the terminal block is disposed on the middle housing of the hybrid box, and the elastic clamping assembly is connected to the rear housing of the hybrid box.

[0023] A third aspect of this application also provides an automobile that includes the hybrid gearbox as described above. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a simplified structural diagram of a hybrid box according to one embodiment.

[0027] Figure 2 This is an assembly structure diagram of a wiring structure according to one embodiment.

[0028] Figure 3 for Figure 2 A schematic diagram of the structure viewed from below.

[0029] Figure 4 for Figure 3 Cross-sectional view of section AA.

[0030] Figure 5 for Figure 4 A magnified view of the structure at point B in the middle section.

[0031] Figure 6 for Figure 2Exploded view of the central wiring structure.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Hybrid box; 10. Wiring structure; 11. Terminal block; 111. Base body; 111a. First limiting baffle; 111b. Second limiting baffle; 112. Positioning sleeve; 12. Motor busbar; 121. First terminal; 121a. First positioning through hole; 122. Bending part; 13. Electrical control busbar; 131. Second terminal; 131a. Second positioning through hole; 14. Elastic clamping assembly; 141. Pressure block; 142. Elastic element; 143. Positioning plug; 15. Slot; 16. Positioning pin; 20. Hybrid box intermediate shell. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] This application provides a type of automobile, specifically a new energy vehicle, such as any one of pure electric vehicles or range-extended hybrid vehicles.

[0041] In addition to the chassis, body, and power system, a car also includes a hybrid gearbox 100.

[0042] like Figure 1 The diagram shown is a simplified structural diagram of a hybrid housing 100 according to one embodiment, which includes a hybrid housing intermediate shell 20, a hybrid housing rear shell (not shown), and a wiring structure 10. Please continue reading. Figures 2 to 6 The wiring structure 10 includes a terminal block 11, a motor copper busbar 12, an electrical control copper busbar 13, and an elastic clamping assembly 14.

[0043] The terminal block 11 is mounted on the intermediate housing 20 of the hybrid gearbox, and the elastic clamping assembly 14 is connected to the rear housing of the hybrid gearbox. Specifically, the connection method between the terminal block 11 and the intermediate housing 20 of the hybrid gearbox, and between the elastic clamping assembly 14 and the rear housing of the hybrid gearbox, can be any one of the following: screw connection, welding, bonding, riveting, magnetic connection, snap-fit ​​connection, etc. The specific method can be flexibly selected according to actual needs, and no specific limitation is made here.

[0044] The motor copper busbar 12 is mounted on the terminal block 11; the electrical control copper busbar 13 is mounted on the terminal block 11 and contacts the motor copper busbar 12; the elastic clamping assembly 14 is mounted on the terminal block 11 and elastically abuts against the motor copper busbar 12 to elastically clamp the motor copper busbar 12 and the electrical control copper busbar 13.

[0045] Furthermore, this embodiment specifically shows an implementation in which there are three motor copper busbars 12, three electronic control copper busbars 13, and three elastic clamping components 14, and they are assembled in a one-to-one correspondence. However, this is not intended to limit the scope of protection of this application. In other embodiments, the number of motor copper busbars 12, three electronic control copper busbars 13, and three elastic clamping components 14 can also be two, four, or more, depending on actual needs.

[0046] It is understandable that the elastic clamping assembly 14 is connected to the rear housing of the hybrid box to achieve the installation and positioning of the elastic clamping assembly 14, thereby ensuring that the elastic clamping assembly 14 applies elastic pressure to the motor copper busbar 12 to reliably clamp and connect the motor copper busbar 12 and the electronic control copper busbar 13.

[0047] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: In the wiring structure 10 of this solution, after the motor copper busbar 12 and the electrical control copper busbar 13 are respectively installed on the terminal block 11, the motor copper busbar 12 is elastically abutted against the electrical control copper busbar 13 by the elastic clamping component 14 provided on the terminal block 11. Thus, the motor copper busbar 12 and the electrical control copper busbar 13 can be elastically clamped by the elastic pressure of the elastic clamping component 14, so as to realize the wiring between the motor copper busbar 12 and the electrical control copper busbar 13. Compared with the bolt connection method in the prior art, on the one hand, the elastic pressure can keep the motor copper busbar 12 and the electrical control copper busbar 13 connected. 3. The bolts are always reliably pressed, which improves the reliability of the connection and avoids the gap between the motor copper busbar 12 and the electronic control copper busbar 13 caused by loose bolts, which would lead to increased resistance and cause a safety accident of overheating and burning. On the other hand, the motor copper busbar 12 and the electronic control copper busbar 13 are pressed together by elastic pressure, and there is no need to open bolt clearance holes on the motor copper busbar 12 and the electronic control copper busbar 13. This allows the motor copper busbar 12 and the electronic control copper busbar 13 to maintain a sufficient contact area. While meeting the current carrying capacity, the size design can be made smaller, reducing the installation space occupied, which helps to minimize the size of the hybrid box 100.

[0048] Please continue reading. Figures 5 to 6Based on the above embodiments, the optional elastic clamping assembly 14 includes a pressure block 141, an elastic element 142, and a positioning plug 143. One end of the elastic element 142 is connected to the pressure block 141 so that the pressure block 141 elastically abuts against the motor copper busbar 12. The other end of the elastic element 142 is connected to the positioning plug 143, which is used for fixed installation.

[0049] Specifically, the positioning plug 143 is used to install and fix it on the rear housing of the hybrid gearbox. For example, the positioning plug 143 is fixed to the rear housing of the hybrid gearbox by bolts. The end of the positioning plug 143 away from the rear housing of the hybrid gearbox abuts against one end of the elastic member 142, and the other end of the elastic member 142 is connected to the pressure block 141. In the installed state, the elastic member 142 is compressed and continuously outputs elastic thrust to the pressure block 141, so that the pressure block 141 can continuously apply elastic pressure to the motor copper busbar 12, thereby elastically pressing the motor copper busbar 12 and the electronic control copper busbar 13 together to ensure reliable contact between the motor copper busbar 12 and the electronic control copper busbar 13.

[0050] Optionally, the elastic element 142 can be any one of spring, sheet, elastic column, etc., and the specific type can be selected according to actual needs.

[0051] Furthermore, the terminal block 11 includes a base body 111 and a positioning sleeve 112. The positioning sleeve 112 is disposed on the base body 111, and the pressure block 141 and the elastic element 142 are both movably disposed in the cavity of the positioning sleeve 112.

[0052] The positioning sleeve 112 is a cylindrical body that extends through both ends. It can be integrally formed with the base body 111 or it can be detachably assembled. Furthermore, the positioning sleeve 112 can be directly connected to the base body 111 or indirectly connected to the base body 111 through a third component such as a bracket.

[0053] The pressure block 141 and the elastic element 142 are inserted into the cavity of the positioning sleeve 112. The circumferential sidewall of the cavity can provide good circumferential positioning and axial expansion and contraction guidance for the pressure block 141 and the elastic element 142, ensuring that the elastic element 142 and the pressure block 141 can output a continuous and stable elastic clamping force along the axial direction to the motor copper busbar 12 and the electronic control copper busbar 13, while ensuring that the structure of the entire elastic clamping assembly 14 is more stable.

[0054] Please continue reading. Figure 6Furthermore, based on any of the above embodiments, a slot 15 is defined between the base body 111 and the positioning sleeve 112. The motor copper busbar 12 has a first terminal 121, and the electronic control copper busbar 13 has a second terminal 131. Both the first terminal 121 and the second terminal 131 are inserted into the slot 15 and stacked along the width direction of the slot 15. With this arrangement, the sidewall of the slot 15 can limit the first terminal 121 and the second terminal 131 inserted into the slot cavity, so as to ensure that the relative position of the first terminal 121 and the second terminal 131 stacked along the width direction of the slot 15 is stable and the contact is reliable, preventing relative displacement between the two from affecting the contact area and reducing the current carrying capacity of the motor copper busbar 12 and the electronic control copper busbar 13.

[0055] Understandably, the first terminal 121 and the second terminal 131 are rectangular plate structures, and they are stacked along the thickness direction so that the first terminal 121 and the second terminal 131 can contact each other with the side with the largest surface area. This ensures that there will be a sufficiently large contact area between them to improve the current carrying capacity.

[0056] It is necessary to note that the width of the slot 15 should be designed to match the sum of the thicknesses of the first terminal 121 and the second terminal 131. This is to avoid the slot 15 being too narrow, which would make it difficult to insert the first terminal 121 and the second terminal 131 into the slot 15, while also preventing the slot 15 from being too wide, which would affect the tight contact between the first terminal 121 and the second terminal 131 and make it easy for the first terminal 121 to slide out of the slot 15.

[0057] Please continue reading. Figure 6 Furthermore, the base body 111 is provided with a first limiting baffle 111a and a second limiting baffle 111b spaced apart from each other. The first limiting baffle 111a and the second limiting baffle 111b surround the outer periphery of the slot 15. The first limiting baffle 111a engages with one side of the width direction of the motor copper busbar 12 and the electrical control copper busbar 13, and the second limiting baffle 111b engages with the other side of the width direction of the motor copper busbar 12 and the electrical control copper busbar 13. Thus, the first limiting baffle 111a and the second limiting baffle 111b form lateral limiting, which can further improve the installation stability of the motor copper busbar 12 and the electrical control copper busbar 13 in the slot 15.

[0058] It should be noted that the aforementioned limiting fit can refer to either the first limiting baffle 111a and the second limiting baffle 111b being in contact with the side of the motor copper busbar 12 and the electrical control copper busbar 13 or having a gap, and the specific choice can be made according to actual needs.

[0059] Please continue reading. Figures 5 to 6In another embodiment, the first terminal 121 has a first positioning through hole 121a, and the second terminal 131 has a second positioning through hole 131a that aligns with the first positioning through hole 121a. A positioning pin 16 protrudes from the side of the pressure block 141 away from the elastic member 142. The positioning pin 16 is inserted into the first positioning through hole 121a and the second positioning through hole 131a. By simultaneously inserting the positioning pin 16 into both the first positioning through hole 121a and the second positioning through hole 131a, the first terminal 121 and the second terminal 131 can be further positioned for installation, ensuring stable assembly of the motor copper busbar 12 and the electrical control copper busbar 13, further restricting their relative degrees of freedom of movement, and ensuring a tight and reliable connection between them.

[0060] It is easy to understand that, in order to achieve a better positioning effect, the diameter of the positioning pin 16 is preferably the same as the diameter of the first positioning through hole 121a and the second positioning through hole 131a. However, this can easily cause the positioning pin 16 to be difficult to insert quickly and accurately into the first positioning through hole 121a and the second positioning through hole 131a. To address this, based on the above embodiment, a guide portion is formed at the end of the positioning pin 16 away from the pressure block 141. For example, the guide portion can be a chamfered or rounded structure, which guides the positioning pin 16 when it is inserted into the first positioning through hole 121a and the second positioning through hole 131a, reducing frictional resistance and effectively solving the above-mentioned problem of difficulty in insertion and assembly.

[0061] In another embodiment, the motor busbar 12 is further provided with a bent portion 122, which is connected to one end of the first terminal 121. By designing the bent portion 122 on the motor busbar 12, the motor busbar 12 obtains a non-straight structure, thereby enabling the motor busbar 12 to adapt to the complex space inside the hybrid housing 100 and make it easier to avoid obstacles. This makes it easier for the first terminal 121 of the motor busbar 12 to be inserted into the slot 15 of the terminal block 11, thus enabling the effective assembly of the electronic control busbar 13.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A wiring structure, characterized in that, include: Terminal block; Motor copper busbar, the motor copper busbar being disposed on the terminal block; An electrically controlled copper busbar is disposed on the terminal block and in contact with the motor copper busbar. as well as, An elastic clamping assembly is disposed on the terminal block and elastically abuts against the motor copper busbar to elastically clamp the motor copper busbar and the electronic control copper busbar. The elastic clamping assembly includes a pressure block, an elastic element, and a positioning plug. One end of the elastic element is connected to the pressure block so that the pressure block elastically abuts against the motor copper busbar. The other end of the elastic element is connected to the positioning plug, which is used for fixed installation. The terminal block includes a base body and a positioning sleeve. The positioning sleeve is disposed on the base body, and the pressure block and the elastic element are both movably disposed in the cavity of the positioning sleeve.

2. The wiring structure according to claim 1, characterized in that, The positioning plug is used to install and fix it on the rear housing of the hybrid gearbox.

3. The wiring structure according to claim 1, characterized in that, A slot is defined between the base body and the positioning sleeve. The motor busbar has a first terminal and the electrical control busbar has a second terminal. Both the first terminal and the second terminal are inserted into the slot and stacked along the width of the slot.

4. The wiring structure according to claim 3, characterized in that, The first terminal and the second terminal are rectangular plate structures, which are stacked along the thickness direction so that the first terminal and the second terminal can contact each other with the side with the largest surface area.

5. The wiring structure according to claim 3, characterized in that, The first terminal has a first positioning through hole, and the second terminal has a second positioning through hole that aligns with the first positioning through hole. The side of the pressure block opposite to the elastic element has a positioning pin protruding from it, and the positioning pin is inserted into the first positioning through hole and the second positioning through hole.

6. The wiring structure according to claim 5, characterized in that, The end of the positioning pin away from the pressure block has an inlet portion.

7. The wiring structure according to claim 3, characterized in that, The motor busbar also has a bent portion, which is connected to one end of the first terminal.

8. The wiring structure according to claim 3, characterized in that, The base body is provided with a first limiting baffle and a second limiting baffle spaced apart from each other. The first limiting baffle and the second limiting baffle surround the outer periphery of the slot. The first limiting baffle is limited and cooperates with one side of the width direction of the motor copper busbar and the electrical control copper busbar, and the second limiting baffle is limited and cooperates with the other side of the width direction of the motor copper busbar and the electrical control copper busbar.

9. A hybrid box, characterized in that, include: The middle shell of the hybrid gearbox; Rear housing of the hybrid gearbox; as well as, According to any one of claims 1 to 8, the wiring terminal is disposed on the intermediate housing of the hybrid box, and the elastic clamping assembly is connected to the rear housing of the hybrid box.

10. A car, characterized in that, Includes the hybrid box as described in claim 9.

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