Suspension structure for avoiding high-voltage risk of forecabin of pure electric vehicle type and vehicle

Abstract

The utility model relates to a suspension structure and a vehicle capable of avoiding the high-voltage risk of a front cabin of a pure electric vehicle model, and the suspension structure comprises a first installation seat which is arranged on an auxiliary frame and is used for installing an electric compressor, and the electric compressor is provided with a high-voltage wire plug connector; the suspension is arranged on the auxiliary frame, an abutting limiting part is arranged on the suspension, and when the vehicle collides, the abutting limiting part is used for limiting the longitudinal movement of the electric compressor along the auxiliary frame; and the second mounting seat is used for mounting the motor, and the second mounting seat is connected with the suspension. By arranging the abutting limiting part on the suspension, when the vehicle collides, the abutting limiting part can block and limit the longitudinal movement of the electric compressor along the auxiliary frame, so that the extrusion short circuit between the high-voltage wire plug connector on the electric compressor and the second mounting seat is avoided, and the extrusion short circuit risk of the high-voltage wire plug connector is physically blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile collision safety, and in particular to a suspension structure and a vehicle for avoiding the high-voltage risk in the front cabin of a pure electric vehicle. Background Art

[0002] There are many high-voltage components in the front cabin of pure electric vehicles, which reduces the safety of the vehicle. The design teams of various automobile manufacturers will also consider optimizing the high-voltage safety of the front cabin.

[0003] At present, the front motor is mounted on the motor-end mounting seat, the motor-end mounting seat is connected to the suspension, the suspension is connected to the subframe, and the electric compressor is connected to the subframe through the electric compressor mounting seat. When the vehicle collides, the electric compressor moves backward and squeezes the suspension, causing the high-voltage wire connector of the electric compressor to be squeezed against the motor-end mounting seat, making the high-voltage wire connector at risk of short circuit. The existing conventional solution provides a fast-fuse fuse in the fuse box, which can quickly cut off the circuit when the high-voltage connector of the electric compressor is squeezed and short-circuited. However, the large current generated by the fast-fuse fuse during the melting process still poses a safety hazard to the power battery, and the safety risk during the fuse melting process cannot be avoided. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, one of the objectives of this utility model is to provide a suspension structure that avoids the risk of high voltage in the front compartment of a pure electric vehicle. This is to address the problem that when a pure electric vehicle crashes, the high-voltage wire connector of the electric compressor and the motor end mounting bracket are squeezed and short-circuited. The high current generated by the existing fast-blow fuse during the fusing process still poses a safety hazard to the power battery, and the safety risk during the fuse fusing process cannot be avoided. A second objective is to provide a vehicle.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a suspension structure for avoiding the risk of high voltage in the front cabin of a pure electric vehicle, comprising:

[0006] a first mounting seat, provided on the sub-frame, for mounting an electric compressor, on which a high-voltage wire connector is provided;

[0007] A suspension is provided on the sub-frame, and an abutment limiter is provided on the suspension. When the vehicle collides, the abutment limiter is used to limit the longitudinal movement of the electric compressor along the sub-frame;

[0008] The second mounting base is used to mount the motor, and the second mounting base is connected to the suspension.

[0009] Optionally, the abutment limiting portion and the high-voltage wire connector both extend in the longitudinal direction of the sub-frame, and a length L1 of the abutment limiting portion is greater than a length L2 of the high-voltage wire connector.

[0010] Optionally, the abutment limiting portion and the high-voltage wire connector are offset in a transverse direction of the sub-frame.

[0011] Optionally, the offset distance D1 between the abutment limiting portion and the high-voltage line connector is ≥5 mm.

[0012] Optionally, the cross-section of the abutment limiting portion is circular or polygonal.

[0013] Optionally, the width of the abutting limit portion and the overlapping width D2 of the electric compressor are ≥ 25 mm.

[0014] Optionally, the thickness of the abutting limit portion overlaps with the thickness H of the electric compressor ≥ 25 mm.

[0015] Optionally, the suspension includes a left suspension and a right suspension, and the first mounting seat and the right suspension are arranged on the same side of the sub-frame.

[0016] Optionally, the right suspension includes a right bushing seat, a right bushing and a right connecting arm, the right bushing seat is connected to the subframe, the right bushing is installed in the right bushing seat, the right connecting arm is arranged in the right bushing, and the abutment limit portion is arranged on the right connecting arm.

[0017] A vehicle includes the suspension structure as described above for avoiding the risk of high voltage in the front compartment of a pure electric vehicle.

[0018] As described above, the present invention has the following beneficial effects: by providing an abutment limiter on the mount, when the vehicle collides, the abutment limiter can block and limit the longitudinal movement of the electric compressor along the subframe, thereby preventing a short circuit between the high-voltage wire connector on the electric compressor and the second mounting seat, thereby physically blocking the risk of a short circuit. By adding an abutment limiter to the existing mount, the entire vehicle does not require additional components, and there is no need to optimize the mount position and the placement of the electric compressor, thereby reducing the design difficulty and manufacturing costs of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a schematic diagram of the suspension structure and subframe assembly axis shown in an embodiment of the present application;

[0020] Figure 2 Display as Figure 1 A magnified schematic diagram of the structure of part A;

[0021] Figure 3Shown is a top view of the arrangement of the right connecting arm and the electric compressor shown in an embodiment of the present application;

[0022] Figure 4 Shown is a front view of the arrangement position of the right connecting arm and the electric compressor shown in an embodiment of the present application.

[0023] Description of Reference Numerals

[0024] First mounting seat 1, subframe 2, electric compressor 3, high-voltage wire connector 301, left suspension 4, right suspension 5, right bushing seat 501, right bushing 502, right connecting arm 503, abutment limit portion 503a, second mounting seat 6, motor 7. DETAILED DESCRIPTION

[0025] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0026] See also Figures 1 to 4 . It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner, so the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components during actual implementation. During actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings in this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0027] Before describing the embodiments of the present invention in detail, the application environment of the present invention will be described. The technology of the present invention is primarily applied in the field of automotive collision safety technology. The present invention is designed to address the problem that when a pure electric vehicle is involved in a collision, the high-voltage wire connector of the electric compressor and the motor end mounting bracket are squeezed and short-circuited. The high current generated by the existing fast-blow fuse during the fusing process still poses a safety hazard to the power battery, and the safety risk of the fuse fusing process cannot be avoided.

[0028] Please combine Figures 1 to 4 As shown, the utility model provides a suspension structure that avoids the risk of high voltage in the front compartment of a pure electric vehicle.

[0029] In an exemplary embodiment of the present application, a first mounting seat 1 is provided on the sub-frame 2, and the first mounting seat 1 is used to mount the electric compressor 3, and the electric compressor 3 is provided with a high-voltage wire connector 301; a suspension is provided on the sub-frame 2, and an abutment limit portion 503a is provided on the suspension. When the vehicle collides, the abutment limit portion 503a is used to limit the longitudinal movement of the electric compressor 3 along the sub-frame 2; a second mounting seat 6 is used to mount the motor 7, and the second mounting seat 6 is connected to the suspension.

[0030] In this embodiment, the first mounting seat 1 is provided at the front end of the suspension and the second mounting seat 6 along the longitudinal direction of the subframe 2. Therefore, when the front end of the vehicle is involved in a front-end collision, the electric compressor 3 located at the front end is impacted and moves backward toward the suspension and the second mounting seat 6. When the high-voltage line connector 301 on the electric compressor 3 is squeezed by the second mounting seat 6, a high-voltage short circuit risk may occur. In this embodiment, by providing an abutment limiter 503a on the suspension, when the vehicle is involved in a collision, the abutment limiter 503a can block and limit the longitudinal movement of the electric compressor 3 along the subframe 2, thereby preventing the high-voltage line connector 301 on the electric compressor 3 from being squeezed and short-circuited with the second mounting seat 6, thereby physically blocking the risk of squeezing the high-voltage line connector 301. By adding the abutment limiter 503a to the existing suspension, no additional components are required for the entire vehicle, and there is no need to optimize the suspension position and the layout of the electric compressor 3. While physically blocking the risk of squeezing the high-voltage line connector 301, the design difficulty and manufacturing cost of the vehicle are reduced. In addition, the present application sets an abutment limit portion 503a on the suspension structure and combines it with a fast-blow fuse set in the front cabin fuse box to serve as a double insurance against high-voltage risks of pure electric vehicles, further improving the safety performance of pure electric vehicles.

[0031] In an exemplary embodiment of the present application, the abutting limit portion 503 a and the high-voltage wire connector 301 both extend longitudinally of the sub-frame 2 , and the length L1 of the abutting limit portion 503 a is greater than the length L2 of the high-voltage wire connector 301 .

[0032] In this embodiment, the length of the abutment limit portion 503a is designed to be greater than the length of the high-voltage line connector 301. When the structural strength of the abutment limit portion 503a is greater than the collision strength, it can effectively ensure that the high-voltage line connector 301 cannot come into contact and be squeezed with the second mounting seat 6; when the structural strength of the abutment limit portion 503a is less than the collision strength, it ensures that before the high-voltage line connector 301 comes into contact and be squeezed with the second mounting seat 6, the abutment limit portion 503a can effectively block the electric compressor 3 from moving longitudinally along the sub-frame 2.

[0033] In an exemplary embodiment of the present application, the abutting limit portion 503 a and the high-voltage wire connector 301 are offset in the transverse direction of the sub-frame 2 .

[0034] In this embodiment, it is ensured that the abutting limit portion 503 a does not come into contact with or be pressed against the high-voltage line connector 301 of the electric compressor 3 .

[0035] In an exemplary embodiment of the present application, the offset distance D1 between the abutting limiting portion 503 a and the high-voltage line connector 301 is ≥5 mm.

[0036] In this embodiment, the offset distance between the abutment limit portion 503a and the high-voltage line connector 301 is designed to be greater than or equal to 5 mm, so as to avoid the risk of the electric compressor 3 being offset during the longitudinal rearward movement of the sub-frame 2 during a collision, resulting in contact and extrusion between the high-voltage connector and the abutment limit portion 503a.

[0037] In an exemplary embodiment of the present application, the cross-section of the abutting limiting portion 503 a is circular or polygonal.

[0038] In this embodiment, the abutment and limiting portion 503a is designed as a convex portion that protrudes along the longitudinal direction of the sub-frame 2 and toward the electric compressor 3. The abutment and limiting portion 503a includes but is not limited to being designed as a cylinder, a triangular prism, a quadrangular prism, a pentagonal prism, etc., that is, the cross-section is circular or polygonal; in the embodiment shown in this application, the cross-section of the abutment and limiting portion 503a is rectangular.

[0039] In an exemplary embodiment of the present application, the width of the abutting limit portion 503 a and the overlapping width D2 of the electric compressor 3 are ≥ 25 mm.

[0040] In an exemplary embodiment of the present application, the thickness of the abutting limit portion 503 a overlaps with the thickness H of the electric compressor 3 by 25 mm or more.

[0041] In this embodiment, in order to ensure that the abutment limit portion 503a can play a role in blocking and limiting the electric compressor 3, the width of the abutment limit portion 503a and the overlapping width of the electric compressor 3 are designed to be greater than or equal to 25 mm, and the thickness of the abutment limit portion 503a and the overlapping thickness of the electric compressor 3 are greater than or equal to 25 mm, so that the contact area between the abutment limit portion 503a and the electric compressor 3 is large enough, and the resistance provided by the abutment limit portion 503a is sufficient to block the inertia force of the electric compressor 3 moving longitudinally along the sub-frame 2.

[0042] In an exemplary embodiment of the present application, the suspension includes a left suspension 4 and a right suspension 5 , and the first mounting seat 1 and the right suspension 5 are arranged on the same side of the sub-frame 2 .

[0043] In an exemplary embodiment of the present application, the right suspension 5 includes a right bushing seat 501, a right bushing 502 and a right connecting arm 503. The right bushing seat 501 is connected to the subframe 2, the right bushing 502 is installed in the right bushing seat 501, the right connecting arm 503 is arranged in the right bushing 502, and the abutment limit portion 503a is arranged on the right connecting arm 503.

[0044] In this embodiment, the first mounting seat 1 is arranged on one side of the subframe 2 where the right suspension 5 is located. Therefore, it is only necessary to set an abutment limit portion 503a on the right connecting arm 503 to physically block the risk of short circuit caused by contact and extrusion between the high-voltage line connector 301 and the second mounting seat 6. There is no need to set an abutment limit portion 503a on both the left suspension 4 and the right suspension 5, which saves manufacturing costs and is beneficial to the lightweight effect of the vehicle; there is no need to additionally optimize the suspension position, nor is there any need to additionally optimize the layout position of the compressor, which effectively reduces the design difficulty of the vehicle, has low mold change costs, and is simple and easy to implement.

[0045] The present application also proposes a vehicle, comprising the suspension structure as described above for avoiding the risk of high voltage in the front cabin of a pure electric vehicle.

[0046] The operating principle is that by providing an abutment limiter 503a on the mount, when the vehicle collides, the abutment limiter 503a can block and limit the longitudinal movement of the electric compressor 3 along the subframe 2, thereby preventing a short circuit between the high-voltage wire connector 301 on the electric compressor 3 and the second mounting seat 6, and physically blocking the risk of a short circuit between the high-voltage wire connector 301 and the second mounting seat 6. By adding the abutment limiter 503a to the existing mount, the vehicle does not need additional components, and there is no need to optimize the mount position and the placement of the electric compressor 3, reducing the design difficulty and manufacturing costs of the vehicle.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A suspension structure for avoiding high voltage risk in the front cabin of a pure electric vehicle, characterized in that: include: a first mounting seat, provided on the sub-frame, for mounting an electric compressor, on which a high-voltage wire connector is provided; A suspension is provided on the sub-frame, and an abutment limiter is provided on the suspension. When the vehicle collides, the abutment limiter is used to limit the longitudinal movement of the electric compressor along the sub-frame; The second mounting base is used to mount the motor, and the second mounting base is connected to the suspension.

2. The suspension structure for avoiding high voltage risk in the front compartment of a pure electric vehicle according to claim 1 is characterized in that: The abutting limit portion and the high-voltage wire connector both extend in the longitudinal direction of the sub-frame, and a length L1 of the abutting limit portion is greater than a length L2 of the high-voltage wire connector.

3. The suspension structure for avoiding high voltage risk in the front compartment of a pure electric vehicle according to claim 2 is characterized in that: The abutting limiting portion and the high-voltage wire connector are arranged in a transversely staggered manner along the auxiliary frame.

4. The suspension structure for avoiding high voltage risk in the front compartment of a pure electric vehicle according to claim 3 is characterized in that: The offset distance D1 between the abutting limiting portion and the high-voltage line connector is ≥5 mm.

5. The suspension structure for avoiding high voltage risk in the front compartment of a pure electric vehicle according to claim 2 is characterized in that: The cross section of the abutting limiting portion is circular or polygonal.

6. The suspension structure for avoiding high voltage risk in the front compartment of a pure electric vehicle according to claim 5 is characterized in that: The width of the abutting limit portion and the overlapping width D2 of the electric compressor are ≥ 25 mm.

7. The suspension structure for avoiding high voltage risk in the front compartment of a pure electric vehicle according to claim 6 is characterized in that: The thickness of the abutting limit portion and the overlapping thickness of the electric compressor H are ≥ 25 mm.

8. The suspension structure for avoiding high voltage risk in the front compartment of a pure electric vehicle according to claim 1 is characterized in that: The suspension includes a left suspension and a right suspension, and the first mounting seat and the right suspension are arranged on the same side of the sub-frame.

9. The suspension structure for avoiding high voltage risk in the front compartment of a pure electric vehicle according to claim 8 is characterized in that: The right suspension includes a right bushing seat, a right bushing and a right connecting arm. The right bushing seat is connected to the subframe, the right bushing is installed in the right bushing seat, the right connecting arm is arranged in the right bushing, and the abutment limiting portion is arranged on the right connecting arm.

10. A vehicle, characterized in that: It includes a suspension structure for avoiding the risk of high voltage in the front compartment of a pure electric vehicle as described in any one of claims 1 to 9.

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