Case sealing device applied to new energy three-electricity system

Abstract

The invention relates to a case sealing device applied to a new energy three-electric system, which comprises a case body and a main body, the case body comprises a through hole, the main body is provided with a mounting part, the outer contour of the mounting part is hemispherical, the outer side surface of the main body is provided with a convex ring, and the convex ring is in interference fit with the through hole to fix the main body on the case body; the main body is provided with a groove, a supporting structure is arranged in the groove and provided with an extending part, and a limiting flange is arranged at the end, away from the mounting part, of the main body and clamped to the outer surface of the box body. The beneficial effects are that the protruding ring arranged on the side surface of the main body is in interference fit with the through hole, so that the main body is not easy to break away from the through hole in a transportation process after the main body and the box body are assembled, dustproof, waterproof and sealing of the box body are realized, and stability and durability of equipment are improved. The limiting flange is clamped on the surface of the through hole to prevent the main body from completely entering the box body and being unable to be taken out; and the supporting structure prevents the mounting part from deforming during assembly, and the supporting structure is provided with the extending part, so that the main body is more convenient to assemble.

Description

Technical Field

[0001] The present invention relates to the field of automobile sealing technology, and more specifically, to a chassis sealing device applied to a new energy three-electric system. Background Art

[0002] The new energy three-electric system needs to be specially sealed for dust and water when leaving the factory to prevent foreign objects from entering and affecting the stability and durability of the equipment. At present, the new energy three-electric system and external high-voltage connection solutions usually use through-hole connectors: a hole is opened on the chassis, and the connector passes through the chassis to directly connect to the high voltage inside the chassis. Compared with the traditional quick plug connection, this connection method has low cost and requires less external space.

[0003] For sealing the new energy three-electric system, a common method is to seal it with stickers on the surface of the box; this sealing method requires that the through-hole and the surrounding mounting surfaces are on the same plane, and the stickers are easy to fall off during transportation. After the stickers are torn off, the adhesive residue affects the sealing of the three-electric system.

[0004] Another common sealing method is to use a plug for sealing, but this sealing method still has the following problems: the conventional plug requires an interference fit with the chassis. Since the size of the plug is larger than the through hole of the chassis, it is difficult to install it into the chassis hole. In addition, the plug has a certain draft angle, and it is easy to fall off during transportation after being inserted into the chassis. When the three-electric system is subsequently assembled into the whole vehicle, the plug is difficult to remove, affecting the subsequent installation of the three-electric system. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the seals of the new energy three-electric system are easy to fall off, the sealing is poor and the assembly is difficult. In view of the above-mentioned defects of the prior art, a chassis sealing device applied to the new energy three-electric system is provided.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] A chassis sealing device applied to a new energy three-electric system is constructed, wherein the device comprises a box body and a main body, wherein the box body comprises a through hole for electrically connecting an internal device with an external device, and the main body is engaged in the through hole;

[0008] The main body is provided with a mounting portion, and the outer contour of the mounting portion is hemispherical;

[0009] A raised ring is also provided on the side of the main body, the raised ring is provided on the outer surface of the main body, and the raised ring is interference fit with the through hole;

[0010] A groove is provided on one side of the main body relative to the mounting portion, and a supporting structure is provided in the groove. The supporting structure is in a sheet shape and is vertically arranged in the groove;

[0011] The support structure is provided with an extension portion, and the extension portion extends toward the outside of the groove;

[0012] A limiting flange is provided at one end of the main body close to the opening of the groove, and the limiting flange is engaged with the outer surface of the box body.

[0013] Furthermore, the length of the support structure is equal to the depth of the groove, and the support structure is vertically arranged in the groove and located in the middle of the groove;

[0014] The supporting structure extends along the side surface of the groove to the mounting portion and abuts against the hemispherical surface of the mounting portion.

[0015] Furthermore, the overall depth of the groove is greater than or equal to the thickness of the through hole.

[0016] Furthermore, the width of the extension portion is smaller than the width of the support structure, and the height is higher than the limiting flange.

[0017] Furthermore, the outer diameter of the main body is smaller than the diameter of the through hole.

[0018] Furthermore, the outer diameter of the raised ring is greater than the diameter of the through hole.

[0019] Furthermore, the diameter of the mounting portion is smaller than the diameter of the through hole.

[0020] Furthermore, the outer diameter of the limiting flange is greater than the diameter of the groove.

[0021] Furthermore, the main body is made of rubber material.

[0022] Furthermore, the main body, the mounting portion, the supporting structure and the raised ring are integrally formed.

[0023] The beneficial effects of the present invention are as follows: the main body is provided with a mounting portion, and the outer contour of the mounting portion is hemispherical, a raised ring is provided on the outer side of the main body, the outer diameter of the raised ring is larger than the diameter of the through hole, and the raised ring and the through hole are interference fit to fix the main body on the box body, so that after the main body and the box body are assembled, the main body will not easily separate from the through hole during the subsequent transportation process, thereby achieving dustproof, waterproof and sealing of the box body, and improving the stability and durability of the equipment. The limiting flange provided on the main body is engaged with the outer surface of the through hole of the box body to prevent the main body from completely entering the box body and being unable to be taken out, affecting the electrical connection between the box body and the external device; a sheet-shaped support structure is vertically provided in the groove of the main body to prevent the mounting portion at the bottom of the main body from being sunken toward the opening direction of the groove during assembly, affecting the sealing of the box body; an extension portion is provided at one end of the support structure away from the mounting portion, and the extension portion extends toward the outside of the groove, making the assembly of the main body more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of a box body and a sealing member of the prior art of the present invention;

[0025] Figure 2 It is a three-dimensional schematic diagram of a box body and a sealing member of another prior art of the present invention;

[0026] Figure 3 It is a three-dimensional schematic diagram of a box body and a sealing member of a box sealing device applied to a new energy three-electric system in one embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the assembly of a box body and a main body of a chassis sealing device applied to a new energy three-electric system in one embodiment of the present invention;

[0028] Figure 5 This is a front view of the assembly of a box body and a main body of a chassis sealing device applied to a new energy three-electric system in one embodiment of the present invention;

[0029] Figure 6 It is a three-dimensional diagram of the main body of a chassis sealing device applied to a new energy three-electric system in one embodiment of the present invention;

[0030] Figure 7 It is a cross-sectional view of the main body and through-hole assembly of a chassis sealing device applied to a new energy three-electric system in one embodiment of the present invention.

[0031] Explanation of reference numerals: box body 1 , through hole 11 , main body 2 , groove 21 , supporting structure 22 , extension portion 23 , limiting flange 24 , raised ring 25 , mounting portion 26 . DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0033] Please refer to the attached Figure 1-Figure 7The present invention proposes a chassis sealing device applied to a new energy three-electric system, comprising a box body 1 and a main body 2, the box body 1 comprising a through hole 11 for electrically connecting an internal device with an external device, the main body 2 being engaged in the through hole 11, the main body 2 being provided with a mounting portion 26, and the outer contour of the mounting portion 26 being hemispherical; a raised ring 25 is also provided on the side of the main body 2, the raised ring 25 is arranged on the outer surface of the main body 2, and the raised ring 25 is interference fit with the through hole 11; a groove 21 is provided on one side of the main body 2 relative to the mounting portion 26, a supporting structure 22 is provided in the groove 21, the supporting structure 22 is in the shape of a sheet and is vertically arranged in the groove 21; an extension portion 23 is provided on the supporting structure 22, and the extension portion 23 extends toward the outside of the groove 21; a limiting flange 24 is provided at one end of the main body 2 close to the opening of the groove 21, and the limiting flange 24 is engaged with the outer surface of the box body 1.

[0034] In this embodiment, the main body 2 is provided with a mounting portion 26, and the outer contour of the mounting portion 26 is hemispherical; the main body 2 is provided with a groove 21, and the bottom of the groove 21 is hemispherical. The box body 1 is provided with a through hole 11, and the main body 2 is fixed in the through hole 11. The mounting portion 26 is hemispherical, so that the main body 2 can be assembled with the through hole 11 on the box body 1 without precise positioning.

[0035] The side of the main body 2 is also provided with a raised ring 25, which is arranged on the outer surface of the main body 2 and between the mounting portion 26 and the limiting flange 24. The outer diameter of the raised ring 25 is larger than the diameter of the through hole 11. The raised ring 25 and the through hole 11 are interference fit to fix the main body 2 on the box body 1, which can prevent the main body 2 from being separated from the through hole 11 during transportation after the main body 2 and the box body 1 are assembled, causing foreign matter to enter the box body 1 and affect the service life of the device. The setting of the raised ring 25 enables the main body 2 to be more firmly fixed in the through hole 11 and not easily separated from the through hole 11, thereby achieving dustproof, waterproof and sealing of the box body 1, and improving the stability and durability of the device.

[0036] The main body 2 is provided with a limiting flange 24, which is located at the opening of the groove 21, and the outer diameter of the limiting flange 24 is larger than the diameter of the groove 21 and also larger than the diameter of the through hole 11. During assembly, the limiting flange 24 is engaged with the outer surface of the through hole 11 of the box body 1 to prevent the main body 2 from completely entering the box body 1 and being unable to be taken out, thereby affecting the electrical connection between the box body 1 and the external device.

[0037] A support structure 22 is provided in the groove 21, and the support structure 22 is in the shape of a sheet and is vertically arranged in the groove 21 through the central axis of the groove 21. The length of the support structure 22 is equal to the depth of the groove 21 to prevent the mounting portion 26 of the main body 2 from being recessed toward the opening direction of the groove 21 when the main body 2 is assembled into the through hole 11.

[0038] The support structure 22 is also provided with an extension portion 23. One end of the support structure 22 abuts against the hemispherical surface of the mounting portion 26. The other end away from the mounting portion 26 is provided with an extension portion 23, and the extension portion 23 extends toward the outside of the groove 21, which is more convenient for plugging and unplugging the main body 2 during assembly.

[0039] Please refer to Figure 4-Figure 5 The length of the support structure 22 is equal to the depth of the groove 21, and the support structure 22 is vertically arranged in the groove 21 and located in the middle of the groove 21; the support structure 22 extends along the side of the groove 21 to the mounting portion 26 and abuts against the hemispherical surface of the mounting portion 26.

[0040] In specific implementation: a support structure 22 is provided in the groove 21 of the main body 2, and the support structure 22 is in the shape of a sheet, and is vertically arranged in the groove 21 through the central axis of the groove 21. The length of the support structure 22 is equal to the depth of the groove 21, and extends along the side of the groove 21 to the mounting portion 26, and abuts against the hemispherical surface of the mounting portion 26 to prevent the mounting portion 26 from being recessed toward the opening direction of the groove 21 when the main body 2 and the through hole 11 are fixed by interference fit.

[0041] Please refer to Figure 7 , the overall depth of the groove 21 is greater than or equal to the thickness of the through hole 11.

[0042] In specific implementation: the overall depth of the groove 21 is greater than or equal to the thickness of the through hole 11 set on the box body 1, so as to avoid the groove 21 of the main body 2 being shallow in depth. The raised ring 25 set on the main body 2 is engaged with the edge of the through hole 11, so that the main body 2 is easily separated from the through hole 11, so that foreign objects from the outside enter the box body 1 and affect the internal equipment. The main body 2 passes through the through hole 11, and the raised ring 25 set on the outer surface of the main body 2 is interference fit with the through hole 11 to fix the main body 2 in the through hole 11, and the outer diameter of the raised ring 25 is greater than the diameter of the through hole 11, so that the main body 2 and the through hole 11 are interference fit, so as to prevent the main body 2 from being separated from the through hole 11 during the subsequent transportation process after the main body 2 is assembled with the box body 1, so as to cause foreign objects from the outside to enter the box body 1 and affect the service life of the equipment.

[0043] Please refer to Figure 4-Figure 5 The width of the extension portion 23 is smaller than the width of the supporting structure 22 , and the height thereof is higher than the limiting flange 24 .

[0044] In specific implementation: a support structure 22 is provided in the groove 21 of the main body 2, and the support structure 22 is vertically arranged in the groove 21 in a sheet shape. An extension portion 23 is provided at one end of the support structure 22 away from the mounting portion 26, and the extension portion 23 extends toward the outside of the groove 21, and the width of the extension portion 23 is smaller than the width of the support structure 22, and the height is higher than the limiting flange 24, which is more conducive to the plugging and unplugging of the main body 2, making the assembly between the main body 2 and the box 1 more convenient.

[0045] Please refer to Figure 5-Figure 7 , the outer diameter of the main body 2 is smaller than the diameter of the through hole 11.

[0046] In a specific implementation, the diameter of the outer surface of the main body 2 is smaller than the diameter of the through hole 11, that is, the diameter of the main body 2 on both sides of the raised ring 25 on the outer surface of the main body 2 is smaller than the diameter of the through hole 11. The outer diameter of the raised ring 25 provided on the outer surface of the main body 2 is larger than the diameter of the through hole 11, which makes it easier for the main body 2 and the through hole 11 to be locked and fixed by interference fit.

[0047] Please refer to Figure 6-Figure 7 , the outer diameter of the raised ring 25 is greater than the diameter of the through hole 11.

[0048] In the specific implementation: a raised ring 25 is also provided on the side of the main body 2, and the raised ring 25 is arranged on the outer surface of the main body 2, between the bottom of the groove 21 and the limiting flange 24, and the outer diameter of the raised ring 25 is larger than the diameter of the through hole 11; the diameters on both sides of the raised ring 25 on the side of the main body 2 are smaller than the diameter of the through hole 11 on the box body 1, so as to avoid the situation where the main body 2 is unevenly subjected to axial force and detached from the through hole 11, so that the main body 2 can be more firmly fixed in the through hole 11, and prevent the main body 2 from detaching from the through hole 11 during the subsequent transportation process after the main body 2 is assembled with the box body 1, causing foreign matter to enter the box body 1, thereby affecting the service life of the equipment.

[0049] Please refer to Figure 7 , the diameter of the mounting portion 26 is smaller than the diameter of the through hole 11 .

[0050] In a specific implementation: the outer contour of the mounting portion 26 of the main body 2 and the bottom of the groove 21 provided on the main body 2 are both hemispherical, and the spherical diameter of the mounting portion 26 is smaller than the diameter of the through hole 11, so that when the main body 2 and the through hole 11 are assembled, the main body 2 can be accurately assembled into the through hole 11 without the need for precise positioning.

[0051] Please refer to Figure 5 and Figure 7 , the outer diameter of the limiting flange 24 is greater than the diameter of the groove 21 .

[0052] In specific implementation: the limiting flange 24 is arranged at one end of the main body 2 close to the opening of the groove 21, and the outer diameter is larger than the diameter of the groove 21 and also larger than the diameter of the through hole 11, so that the limiting flange 24 is engaged with the outer surface of the box body 1 to prevent the main body 2 from entering the through hole 11 of the box body 1 and being unable to be pulled out during assembly. It can also prevent the installation surface of the through hole 11 on the box body 1 from being scratched and bumped by foreign objects, affecting the electrical connection between the box body 1 and the external device.

[0053] Please refer to Figure 6-Figure 7 , the main body 2 is made of rubber material.

[0054] In specific implementation: the material of the main body 2 is rubber, including but not limited to silicone rubber. The main body 2 is made of silicone rubber material, which has the effects of soft texture, good high temperature resistance and insulation performance and good sealing. In a high temperature environment, silicone rubber can still maintain a certain flexibility, resilience and surface hardness, and the mechanical properties do not change significantly. When the main body 2 and the through hole 11 are interference fit, the main body 2 is more firmly fixed in the through hole 11, and the main body 2 will not easily fall out of the through hole 11 during the subsequent transportation process, which extends the service life of the equipment and improves the stability and durability of the equipment.

[0055] Please refer to 6 , the main body 2 , the mounting portion 26 , the support structure 22 and the raised ring 25 are integrally formed.

[0056] In the specific implementation: the main body 2, the mounting portion 26, the support structure 22 and the raised ring 25 of the sealing device are integrally formed, so that the connection between the support structure 22, the extension portion 23 and the raised ring 25 arranged on the main body 2 and the main body 2 is not prone to breakage or separation.

[0057] In summary, a chassis sealing device applied to a new energy three-electric system includes a box body 1 and a main body 2. The box body 1 includes a through hole 11 for electrically connecting an internal device to an external device. The main body 2 is engaged in the through hole 11. The outer contour of the mounting portion 26 provided on the main body 2 is hemispherical. A groove 21 is provided at one end of the main body 2 away from the mounting portion 26, and the bottom of the groove 21 is hemispherical, so that the main body 2 can be assembled with the through hole 11 on the box body 1 without precise positioning. A support structure 22 is provided in the groove 21. The support structure 22 is in the form of a sheet, and the support structure 22 is vertically arranged in the groove 21 through the central axis of the groove 21, and extends along the side of the groove 21 to the mounting portion 26, and abuts against the hemispherical surface of the mounting portion 26. The length of the support structure 22 is equal to the depth of the groove 21. When the main body 2 is fixed with the through hole 11 by interference fit, the mounting portion 26 is prevented from being recessed toward the opening direction of the groove 21. An extension portion 23 is provided at one end of the support structure 22 away from the mounting portion 26. The extension portion 23 extends toward the outside of the groove 21 and is higher than the limiting flange 24, which is more convenient for plugging and unplugging the main body 2 during assembly. The main body 2 is also provided with a limiting flange 24, which is located at the opening of the groove 21, and the outer diameter of the limiting flange 24 is greater than the diameter of the groove 21. During assembly, the limiting flange 24 is engaged with the outer surface of the through hole 11 of the box body 1 to prevent the main body 2 from completely entering the box body 1 and being unable to be taken out, affecting the electrical connection between the box body 1 and the external device. A raised ring 25 is also provided on the side of the main body 2, which is provided on the outer surface of the main body 2 and between the mounting portion 26 and the limiting flange 24. The outer diameter of the raised ring 25 is larger than the diameter of the through hole 11, and the main body 2 is interference-fitted with the through hole 11, which prevents the main body 2 from being separated from the through hole 11 during the subsequent transportation after the main body 2 is assembled with the box body 1, causing foreign matter to enter the box body 1 and affect the service life of the device. The provision of the raised ring 25 enables the main body 2 to be more firmly fixed in the through hole 11 and not easily separated from the through hole 11, thereby achieving dustproof, waterproof and sealing of the box body 1, and improving the stability and durability of the device.

[0058] The mounting portion 26, the support structure 22 and the raised ring 25 provided on the main body 2 of the sealing device are integrally formed with the main body 2, so that the connection between the support structure 22, the extension portion 23 and the raised ring 25 provided on the main body 2 and the main body 2 is not prone to breakage or separation. The material of the main body 2 is rubber, which has a soft texture, good high temperature insulation performance and good sealing performance. In a high temperature environment, the silicone rubber can still maintain a certain degree of flexibility, resilience and surface hardness, and the mechanical properties do not change significantly.

[0059] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, device, article or method including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, device, article or method. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, device, article or method including the element.

[0060] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A chassis sealing device applied to a new energy three-electric system, characterized in that: It comprises a box body and a main body, wherein the box body comprises a through hole for electrically connecting an internal device with an external device, and the main body is engaged in the through hole; The main body is provided with a mounting portion, and the outer contour of the mounting portion is hemispherical; A raised ring is also provided on the side of the main body, the raised ring is provided on the outer surface of the main body, and the raised ring is interference fit with the through hole; A groove is provided on one side of the main body relative to the mounting portion, and a supporting structure is provided in the groove. The supporting structure is in a sheet shape and is vertically arranged in the groove; The support structure is provided with an extension portion, and the extension portion extends toward the outside of the groove; A limiting flange is provided at one end of the main body close to the opening of the groove, and the limiting flange is engaged with the outer surface of the box body.

2. The chassis sealing device applied to the new energy three-electric system according to claim 1 is characterized in that: The length of the support structure is equal to the depth of the groove, and the support structure is vertically arranged in the groove and located in the middle of the groove; The supporting structure extends along the side surface of the groove to the mounting portion and abuts against the hemispherical surface of the mounting portion.

3. The chassis sealing device applied to the new energy three-electric system according to claim 2 is characterized in that: The depth of the groove is greater than or equal to the thickness of the through hole.

4. The chassis sealing device applied to the new energy three-electric system according to claim 1 is characterized in that: The width of the extension portion is smaller than the width of the support structure, and the height of the extension portion is higher than the limiting flange.

5. The chassis sealing device applied to the new energy three-electric system according to claim 1 is characterized in that: The outer diameter of the main body is smaller than the diameter of the through hole.

6. The chassis sealing device applied to the new energy three-electric system according to claim 1 is characterized in that: The outer diameter of the raised ring is greater than the diameter of the through hole.

7. The chassis sealing device applied to the new energy three-electric system according to claim 3 is characterized in that: The diameter of the mounting portion is smaller than the diameter of the through hole.

8. The chassis sealing device applied to the new energy three-electric system according to claim 1 is characterized in that: The outer diameter of the limiting flange is greater than the diameter of the groove.

9. The chassis sealing device applied to the new energy three-electric system according to claim 5 is characterized in that: The main body is made of rubber material.

10. The chassis sealing device applied to the new energy three-electric system according to claim 9, characterized in that: The main body, the mounting portion, the supporting structure and the raised ring are integrally formed.

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