Rust-proof and corrosion-resistant structure for electric vehicle frame

Abstract

The utility model discloses an anti-rust corrosion-resistant structure for an electric vehicle frame, which belongs to the technical field of electric vehicles, and is characterized by comprising a main beam, two upper side beams and lower side beams, the end parts of the two upper side beams are bent to form extension sections, the extension sections cover the outer side wall of the main beam, and the extension sections and the main beam are fixed through welding; the middle of the lower edge beam and the main beam are fixed through welding, a first rust-proof structure is arranged at the welding position of the extension section and the main beam, a first wrapping component is installed on the main beam and covers the welding position of the extension section and the main beam, a second rust-proof structure is arranged at the welding position of the middle of the lower edge beam and the main beam, and a second wrapping component is installed on the main beam. The second outer covering component covers the welding position of the middle of the lower edge beam and the main beam, and the structure can effectively reduce the influence of the external environment on the welding area.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric motor car technical field, especially relate to a rust -resistant corrosion -resisting structure for electric motor car frame. BACKGROUND

[0002] The frame is the core structural component of the electric motor car, which bears the key role of supporting the whole car weight, connecting each component and ensuring the riding safety and stability.

[0003] The Chinese patent with the publication number CN221251602U discloses an electric motor car frame, specifically relates to electric motor car technical field, and includes head beam, main beam, upper side beam and lower side beam, the head beam is fixedly connected with the top of the main beam, the lower side beam is fixedly connected with the bottom of the main beam, the upper side beam includes horizontal pipe and elbow pipe, one end of the elbow pipe is fixedly connected with one end of the horizontal pipe, the extension section at the other end of the elbow pipe is parallel to the main beam and is fixedly connected with the main beam, the outer side wall of the extension section is attached to part of the side wall of the main beam, and the other end of the horizontal pipe is fixedly connected with the lower side beam.

[0004] The above technical scheme has the following defects: the elbow pipe and the main beam of the electric motor car frame are fixed by welding, but in the welding process, the welding position is prone to welding defects under the combined influence of many factors such as the stability of the welding process, the technical level of the operator and the characteristics of the material, at the same time, the electric motor car frame is usually used outdoors for a long time, and is often eroded by corrosive substances such as rainwater, moisture and salt mist, so the welding area is prone to corrosion of the frame, which adversely affects the overall service life and safety of the frame. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems existing in the prior art, and provides a rust -resistant corrosion -resisting structure for electric motor car frame, and the technical problem to be solved by the utility model is how to reduce the influence of the external environment on the welding area.

[0006] The above technical purpose of the utility model can be realized by the following technical scheme: a rust -resistant corrosion -resisting structure for electric motor car frame, including main beam, two upper side beams and lower side beam, the end of the two upper side beams is bent to form extension section, the extension section covers the outer side wall of the main beam and is fixed by welding, the middle part of the lower side beam is fixed with the main beam by welding, the welding position of the extension section and the main beam is provided with rust -resistant structure one, the main beam is provided with outer package component one, the outer package component one covers the welding position of the extension section and the main beam, the welding position of the middle part of the lower side beam and the main beam is provided with rust -resistant structure two, the main beam is provided with outer package component two, and the outer package component two covers the welding position of the middle part of the lower side beam and the main beam.

[0007] In the anti-rust and corrosion-resistant structure for the electric vehicle frame, the anti-rust structure one comprises an electroplating layer one and an anti-rust paint layer one, the electroplating layer one is arranged at the welding position of the extension section and the main beam, and the anti-rust paint layer one is sprayed on the outer surface of the electroplating layer one.

[0008] In the anti-rust and corrosion-resistant structure for the electric vehicle frame, the anti-rust structure two comprises an electroplating layer two and an anti-rust paint layer two, the electroplating layer two is arranged at the welding position of the middle part of the lower side beam and the main beam, and the anti-rust paint layer two is sprayed on the outer surface of the electroplating layer two.

[0009] In the anti-rust and corrosion-resistant structure for the electric vehicle frame, the outer wrapping component one comprises a component main body one and a component main body two, the component main body one is spliced with the component main body two, and the component main body one and the component main body two are clamped at the welding position of the extension section and the main beam.

[0010] In the anti-rust and corrosion-resistant structure for the electric vehicle frame, the component main body one is provided with a plurality of positioning protrusions on the side surface opposite to the component main body two, the component main body two is provided with a plurality of positioning grooves on the side surface opposite to the component main body one, the positioning protrusions correspond to the positioning grooves, and the positioning protrusions are plug-in arranged in the positioning grooves.

[0011] In the anti-rust and corrosion-resistant structure for the electric vehicle frame, the component main body one and the component main body two are spliced to form an annular step, and the step surface of the annular step abuts against the end of the extension section.

[0012] In the anti-rust and corrosion-resistant structure for the electric vehicle frame, the outer wrapping component two is annular and is arranged on the outer side of the main beam.

[0013] In the anti-rust and corrosion-resistant structure for the electric vehicle frame, the support plate is arranged between the upper side beam, the lower side beam and the main beam.

[0014] In the anti-rust and corrosion-resistant structure for the electric vehicle frame, the support plate is arranged between the upper side beam, the lower side beam and the main beam.

[0015] In summary, the anti-rust and corrosion-resistant structure for the electric vehicle frame has the beneficial effects that:

[0016] Rustproof structure one is arranged at the welding position of the extension section and the main beam, and rustproof structure two is arranged at the welding position of the middle part of the lower edge beam and the main beam, the outer wrapping component one covers the welding position of the extension section and the main beam, and the outer wrapping component two covers the welding position of the middle part of the lower edge beam and the main beam, the rustproof structure one and the rustproof structure two effectively prevent the corrosive medium such as rain, moisture and salt mist from directly contacting the corresponding welding position, the outer wrapping component one and the outer wrapping component two form a physical barrier to further prevent the corrosive medium from invading, thereby protecting the corresponding welding position and preventing the welding position from being damaged due to external factors such as collision and friction, thereby reducing the risk of corrosion of the welding position and ensuring the reliability of the frame structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Structure schematic view of an embodiment;

[0018] Figure 2 Structure schematic view of part of an embodiment;

[0019] Figure 3 Structure schematic view of an outer wrapping component one of an embodiment;

[0020] Figure 4 Structure schematic view of a component main body one of an embodiment;

[0021] Figure 5 Structure schematic view of a component main body two of an embodiment.

[0022] Fig. 1 is a structure schematic view of an embodiment; Fig. 2 is a structure schematic view of part of an embodiment; Fig. 3 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 4 is a structure schematic view of a component main body one of an embodiment; Fig. 5 is a structure schematic view of a component main body two of an embodiment; Fig. 6 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 7 is a structure schematic view of an embodiment; Fig. 8 is a structure schematic view of part of an embodiment; Fig. 9 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 10 is a structure schematic view of a component main body one of an embodiment; Fig. 11 is a structure schematic view of a component main body two of an embodiment; Fig. 12 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 13 is a structure schematic view of an embodiment; Fig. 14 is a structure schematic view of part of an embodiment; Fig. 15 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 16 is a structure schematic view of a component main body one of an embodiment; Fig. 17 is a structure schematic view of a component main body two of an embodiment; Fig. 18 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 19 is a structure schematic view of an embodiment; Fig. 20 is a structure schematic view of part of an embodiment; Fig. 21 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 22 is a structure schematic view of a component main body one of an embodiment; Fig. 23 is a structure schematic view of a component main body two of an embodiment; Fig. 24 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 25 is a structure schematic view of an embodiment; Fig. 26 is a structure schematic view of part of an embodiment; Fig. 27 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 28 is a structure schematic view of a component main body one of an embodiment; Fig. 29 is a structure schematic view of a component main body two of an embodiment; Fig. 30 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 31 is a structure schematic view of an embodiment; Fig. 32 is a structure schematic view of part of an embodiment; Fig. 33 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 34 is a structure schematic view of a component main body one of an embodiment; Fig. 35 is a structure schematic view of a component main body two of an embodiment; Fig. 36 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 37 is a structure schematic view of an embodiment; Fig. 38 is a structure schematic view of part of an embodiment; Fig. 39 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 40 is a structure schematic view of a component main body one of an embodiment; Fig. 41 is a structure schematic view of a component main body two of an embodiment; Fig. 42 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 43 is a structure schematic view of an embodiment; Fig. 44 is a structure schematic view of part of an embodiment; Fig. 45 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 46 is a structure schematic view of a component main body one of an embodiment; Fig. 47 is a structure schematic view of a component main body two of an embodiment; Fig. 48 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 49 is a structure schematic view of an embodiment; Fig. 50 is a structure schematic view of part of an embodiment; Fig. 51 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 52 is a structure schematic view of a component main body one of an embodiment; Fig. 53 is a structure schematic view of a component main body two of an embodiment; Fig. 54 is a structure schematic view of an outer wrapping component two of an embodiment; Fig. 55 is a structure schematic view of an embodiment; Fig. 56 is a structure schematic view of part of an embodiment; Fig. 57 is a structure schematic view of an outer wrapping component one of an embodiment; Fig. 58 is a structure schematic view of a component main body one of an embodiment; Fig. 59 is a structure schematic view of a component main body two of an embodiment; Fig. 60 is a structure schematic view of an outer wrapping component two of an embodiment. DETAILED DESCRIPTION

[0023] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0024] A kind of rustproof corrosion-resistant structure for electric vehicle frame, as shown in Figures 1 to 5 It includes main beam 1, two upper edge beams 2 and lower edge beam 3, the end of two upper edge beams 2 is bent and forms extension section 4, extension section 4 covers the outer side wall of main beam 1 and is fixed by welding, the middle part of lower edge beam 3 is fixed with main beam 1 by welding.

[0025] A rust-proof structure 11 is provided at the weld joint between the extension section 4 and the main beam 1. In this embodiment, the rust-proof structure 11 includes an electroplating layer and a rust-proof paint layer. The electroplating layer is provided at the weld joint between the extension section 4 and the main beam 1, and the rust-proof paint layer is sprayed on the outer surface of the electroplating layer. By using the electroplating layer and the rust-proof paint layer as a barrier, corrosive media are prevented from directly contacting the weld joint between the extension section 4 and the main beam 1, thereby reducing the impact of the external environment on the weld area.

[0026] An outer component 5 is installed on the main beam 1. The outer component 5 covers the weld between the extension section 4 and the main beam 1, and further blocks the intrusion of corrosive media by the outer component 5, thus protecting the weld between the extension section 4 and the main beam 1.

[0027] Specifically, the outer component 5 includes component body 1 51 and component body 2 52. Component body 1 51 and component body 2 52 are spliced ​​together and clamped together at the weld between the extension section 4 and the main beam 1.

[0028] Several positioning protrusions 7 are provided on the side of component body 1 51 opposite to component body 2 52, and several positioning grooves 8 are provided on the side of component body 2 52 opposite to component body 1 51. The positioning protrusions 7 correspond to the positioning grooves 8. The positioning protrusions 7 are inserted and removed into the positioning grooves 8, thereby realizing the stable splicing of component body 1 51 and component body 2 52. Moreover, the positioning protrusions 7 can be inserted into or removed from the corresponding positioning grooves 8 by external force, thereby realizing the assembly or disassembly of component body 1 51 and component body 2 52, which facilitates the later disassembly and maintenance.

[0029] The main body 51 and the main body 52 are spliced ​​together to form an annular step 9. The step surface of the annular step 9 abuts against the end of the extension section 4. The abutting action of the two ensures the stability of the position of the outer component 5.

[0030] A second rust-proof structure 12 is provided at the weld joint between the middle part of the lower beam 3 and the main beam 1. In this embodiment, the second rust-proof structure 12 includes an electroplated layer 2 and a second rust-proof paint layer 2. The electroplated layer 2 is provided at the weld joint between the middle part of the lower beam 3 and the main beam 1, and the second rust-proof paint layer 2 is sprayed on the outer surface of the electroplated layer 2. By using the electroplated layer 2 and the second rust-proof paint layer 2 as a barrier, corrosive media are prevented from directly contacting the weld joint between the middle part of the lower beam 3 and the main beam 1, thereby reducing the impact of the external environment on the weld area.

[0031] An outer component 2 6 is installed on the main beam 1. The outer component 2 6 is ring-shaped and sleeved on the outside of the main beam 1. The outer component 2 6 covers the middle part of the lower beam 3 and the weld joint with the main beam 1.

[0032] A support plate 10 is provided between the upper beam 2 and the lower beam 3 and the main beam 1 to enhance the structural strength of the area and improve the stability and reliability of the frame structure.

[0033] The support plate 10 presses the outer component 2 6 tightly against the weld between the lower beam 3 and the main beam 1 at the middle, thereby ensuring the stability of the outer component 2 6.

[0034] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A rust-proof and corrosion-resistant structure for an electric vehicle frame, comprising a main beam (1), two upper side beams (2) and a lower side beam (3), characterized in that: Both upper beams (2) have their ends bent to form extension sections (4), which cover the outer side wall of the main beam (1) and are fixed by welding. The middle part of the lower beam (3) is fixed to the main beam (1) by welding. A rust-proof structure one (11) is provided at the weld between the extension section (4) and the main beam (1). An outer casing component one (5) is installed on the main beam (1), which covers the weld between the extension section (4) and the main beam (1). A rust-proof structure two (12) is provided at the weld between the middle part of the lower beam (3) and the main beam (1). An outer casing component two (6) is installed on the main beam (1), which covers the weld between the middle part of the lower beam (3) and the main beam (1).

2. The rust-proof and corrosion-resistant structure for an electric vehicle frame according to claim 1, characterized in that: The rust-proof structure (11) includes an electroplated layer and a rust-proof paint layer. The electroplated layer is disposed at the welding point between the extension section (4) and the main beam (1), and the rust-proof paint layer is sprayed on the outer surface of the electroplated layer.

3. A rust-proof and corrosion-resistant structure for an electric vehicle frame according to any one of claims 1 or 2, characterized in that: The second anti-rust structure (12) includes an electroplated layer and an anti-rust paint layer. The second electroplated layer is located at the welding point between the lower beam (3) and the main beam (1). The second anti-rust paint layer is sprayed on the outer surface of the second electroplated layer.

4. The rust-proof and corrosion-resistant structure for an electric vehicle frame according to claim 3, characterized in that: The outer component one (5) includes component body one (51) and component body two (52). Component body one (51) and component body two (52) are spliced ​​together. Component body one (51) and component body two (52) are clamped together at the welding point between the extension section (4) and the main beam (1).

5. The rust-proof and corrosion-resistant structure for an electric vehicle frame according to claim 4, characterized in that: The first component body (51) has a plurality of positioning protrusions (7) on its side opposite to the second component body (52), and the second component body (52) has a plurality of positioning grooves (8) on its side opposite to the first component body (51). The positioning protrusions (7) correspond to the positioning grooves (8), and the positioning protrusions (7) are inserted into the positioning grooves (8).

6. The rust-proof and corrosion-resistant structure for an electric vehicle frame according to claim 4, characterized in that: The main body of component one (51) and the main body of component two (52) are spliced ​​together to form an annular step (9), and the step surface of the annular step (9) abuts against the end of the extension section (4).

7. The rust-proof and corrosion-resistant structure for an electric vehicle frame according to claim 3, characterized in that: The outer component 2 (6) is ring-shaped and sleeved on the outside of the main beam (1).

8. The rust-proof and corrosion-resistant structure for an electric vehicle frame according to claim 7, characterized in that: A support plate (10) is provided between the upper beam (2) and the lower beam (3) and the main beam (1).

9. The rust-proof and corrosion-resistant structure for an electric vehicle frame according to claim 8, characterized in that: The support plate (10) presses the outer component 2 (6) against the weld between the middle of the lower side beam (3) and the main beam (1).

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