Case sealing device applied to new energy three-electricity system

Abstract

The utility model 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 utility model relates to the technical field of automobile sealing, and more specifically, to a chassis sealing device applied to a new energy three-electric system. Background Art

[0002] New energy three-electric systems require specialized dust and water sealing of chassis openings before shipment to prevent the ingress of foreign matter, which could compromise the stability and durability of the equipment. Currently, new energy three-electric systems typically connect to external high-voltage circuits using through-hole connectors: a through-hole connector is inserted through a hole in the chassis to connect directly to the internal high-voltage circuit. This connection method is less expensive and requires less external space than traditional quick-connect plugs.

[0003] A common way to seal the new energy three-electric system is to use 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 will affect 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 box body. Because the plug is larger than the through hole of the chassis, it is difficult to install when inserted 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. Utility Model Content

[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 performance is poor and the assembly is difficult. In view of the above-mentioned defects of the prior art, a chassis sealing device for the new energy three-electric system is provided.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A chassis sealing device for 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] The side of the main body is further provided with a raised ring, which is provided on the outer surface of the main body and has an 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 larger 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 larger 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, the outer side surface of the main body is provided with a raised ring, 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 to 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 subsequent transportation, thereby achieving dustproof, waterproof and sealed conditions for 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 removed, thereby 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 concave toward the opening direction of the groove during assembly, thereby 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 assembly of the main body more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0029] Figure 6 This 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 utility model;

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

[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 more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some 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 are within the scope of protection of the present invention.

[0033] Please refer to the attached Figure 1-Figure 7The utility model proposes a chassis sealing device for a new energy three-electric system, including a box body 1 and a main body 2. The box body 1 includes a through hole 11 for electrically connecting internal equipment with external equipment. The main body 2 is engaged in the through hole 11. The main body 2 is provided with a mounting portion 26, and the outer contour of the mounting portion 26 is hemispherical; 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 the raised ring 25 is interference fit with the through hole 11; the main body 2 is provided with a groove 21 on one side opposite to the mounting portion 26, and a supporting structure 22 is provided in the groove 21. The supporting structure 22 is sheet-shaped and is vertically arranged in the groove 21; the supporting structure 22 is provided with an extension portion 23, which 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 having a hemispherical outer contour. The main body 2 is also provided with a recess 21 having a hemispherical bottom. The housing 1 is provided with a through hole 11, into which the main body 2 is fixedly engaged. The hemispherical shape of the mounting portion 26 allows the main body 2 to be assembled with the through hole 11 of the housing 1 without requiring precise positioning.

[0035] The side of the main body 2 is also provided with a raised ring 25. The raised ring 25 is arranged on the outer surface of the main body 2 and is arranged 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 to the box body 1. This can prevent the main body 2 from separating 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 shorten the service life of the device. The provision of the raised ring 25 allows the main body 2 to be more firmly fixed in the through hole 11, preventing it from easily separating from the through hole 11, achieving dustproof, waterproof and sealed conditions for the box body 1, and improving the stability and durability of the device.

[0036] Main body 2 is provided with a retaining flange 24 located at the opening of recess 21. The outer diameter of retaining flange 24 is larger than the diameter of recess 21 and also larger than the diameter of through-hole 11. During assembly, retaining flange 24 engages with the outer surface of through-hole 11 in case 1, preventing main body 2 from being completely inserted into case 1 and becoming unable to be removed, thereby affecting the electrical connection between case 1 and external devices.

[0037] A support structure 22 is provided in the groove 21, and the support structure 22 is sheet-shaped and is vertically arranged in the groove 21 through the center 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 conducive to the insertion and removal of 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 perpendicularly 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 provided on the box body 1, to avoid the depth of the groove 21 of the main body 2 being shallow, the raised ring 25 provided on the main body 2 is engaged with the edge of the through hole 11, and the main body 2 is easily separated from the through hole 11, causing foreign matter to 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 provided on the outer surface of the main body 2 is interference-fitted 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-fitted, preventing the main body 2 from separating 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 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 support structure 22 , and the height is higher than the limiting flange 24 .

[0044] In a specific embodiment, a support structure 22 is provided within the groove 21 of the main body 2. The support structure 22 is in the form of a sheet and is disposed vertically within 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 outward from the groove 21. The extension portion 23 is narrower than the width of the support structure 22 and taller than the retaining flange 24, facilitating insertion and removal of the main body 2 and facilitating assembly of the main body 2 with the housing 1.

[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 facilitates the interference fit and locking of the main body 2 and the through hole 11.

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

[0048] In 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 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 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 larger than the diameter of the groove 21.

[0052] In specific implementation: the limiting flange 24 is provided 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, preventing the main body 2 from entering the through hole 11 of the box body 1 during assembly and being unable to be pulled out. 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 insulation performance and good sealing. In a high-temperature environment, silicone rubber can still maintain a certain degree of 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, thereby extending the service life of the equipment and improving the stability and durability of the equipment.

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

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

[0057] In summary, a chassis sealing device for a new energy three-electric system includes a case 1 and a main body 2. The case 1 includes a through hole 11 for electrically connecting internal equipment to external equipment. 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 case 1 without the need for precise positioning. A support structure 22 is provided in the groove 21. The support structure 22 is sheet-shaped and is perpendicularly arranged in the groove 21 through the central axis 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. 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 of the groove 21. An extension 23 is provided on the end of the support structure 22 away from the mounting portion 26. This extension 23 extends outward from the groove 21 and is taller than the retaining flange 24, facilitating insertion and removal of the main body 2 during assembly. The main body 2 is also provided with a retaining flange 24, located at the opening of the groove 21. The outer diameter of the retaining flange 24 is larger than that of the groove 21. During assembly, the retaining flange 24 engages with the outer surface of the through-hole 11 of the housing 1, preventing the main body 2 from being completely inserted into the housing 1 and becoming unable to be removed, thereby affecting the electrical connection between the housing 1 and an external device. A raised ring 25 is also provided on the side of the main body 2. The raised ring 25 is located on the outer surface of the main body 2 and is positioned between the mounting portion 26 and the retaining flange 24. The outer diameter of raised ring 25 is larger than the diameter of through-hole 11, creating an interference fit between main body 2 and through-hole 11. This prevents main body 2 from separating from through-hole 11 during subsequent transportation after assembly with housing 1, potentially allowing foreign matter to enter housing 1 and shorten the lifespan of the device. The provision of raised ring 25 allows main body 2 to be more securely fixed within through-hole 11, preventing it from easily separating from it. This provides dustproof, waterproof, and sealed protection for housing 1, improving the stability and durability of the device.

[0058] The mounting portion 26, support structure 22, and raised ring 25 on the sealing device's main body 2 are integrally formed with the main body 2, making the connections between the support structure 22, extension 23, and raised ring 25 less susceptible to breakage or separation. The main body 2 is made of rubber, which offers a soft texture, excellent high-temperature insulation, and excellent sealing properties. Even in high-temperature environments, silicone rubber maintains a certain level of flexibility, resilience, and surface hardness, with no significant changes in mechanical properties.

[0059] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, apparatus, article, or method comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, apparatus, article, or method. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, apparatus, article, or method comprising 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 applied 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: The device comprises a box and a main body, wherein the box 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; The side of the main body is further provided with a raised ring, which is provided on the outer surface of the main body and has an 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 for 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 for 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 for a 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 thereof 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: An outer diameter of the main body is smaller than a diameter of the through hole.

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

7. The chassis sealing device for 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 for a 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 for 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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