CN211792452U - Ultrasonic welding waterproof structure - Google Patents

Abstract

The utility model discloses an ultrasonic welding waterproof structure, it includes first casing, second casing and sealing member, first casing and second casing set up relatively, first casing and second casing are equipped with the ultrasonic welding structure in the junction, first casing and second casing assembly form the holding chamber, and when first casing and second casing fuse fixedly, the sealing member is extruded and sealed in the holding chamber; the utility model discloses a waterproof structure of ultrasonic welding can carry out permanent extrusion fixedly to the sealing member in miniaturization, lightweight assembly casing, effectively realizes the zero displacement of the relative casing of sealing member, stops the sealing member because of the waterproof performance reduction or the inefficacy that relative casing shifted and arouse.

Description

Ultrasonic welding waterproof structure

Technical Field

The utility model relates to a waterproof assembly field especially relates to a waterproof structure of ultrasonic bonding.

Background

As the use environment becomes more complex, more and more products need to meet a certain waterproof grade to adapt to different use environments, and different products need to meet waterproof requirements of different grades. In order to realize waterproofing in the assembling process, the existing method is to place a waterproof ring between two parts to be assembled, and assemble and fix the two parts to be assembled by locking screws so as to fix the waterproof ring at the position of the two parts to be assembled, where waterproofing is required.

However, since the screws are locked by connecting and fixing the two parts to be assembled point to point, on one hand, the waterproof ring is easy to shift due to the loosening of the screws or the frequent movement of the product, so that the waterproof ring cannot be reliably abutted against the part of the product needing waterproof, and finally the waterproof performance of the product is reduced or the product is invalid; on the other hand, the assembly positions of two parts to be assembled fixedly connected through the lock screws have obvious gaps, so that the ornamental value is poor, water mist or liquid easily permeates into the product from the large gaps, and the service life of the product is shortened; on the other hand, through locking screw fixed connection's two waterproof grades that wait to assemble the part lower, when needs improve waterproof grade, need the gap to carry out extra processing, increased the processing procedure undoubtedly, production efficiency is lower, and locks the screw operation and can occupy the more space of casing, increases the whole volume of product.

Therefore, a waterproof structure for ultrasonic welding is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a waterproof structure of ultrasonic bonding can carry out permanent extrusion fixedly to the sealing member in miniaturization, lightweight assembly casing, effectively realizes the zero displacement of the relative casing of sealing member, stops the sealing member and reduces or become invalid because of the waterproof performance that relative casing shifted and arouse.

In order to put purpose in the realization, the utility model discloses a waterproof structure of ultrasonic welding, it includes first casing, second casing and sealing member, first casing and second casing set up relatively, first casing and second casing are equipped with the ultrasonic bonding structure in the junction, first casing forms the holding chamber with the assembly of second casing, just first casing borrows with the second casing when the ultrasonic bonding structure fuses fixedly, the sealing member by extrusion seal in the holding intracavity.

Compared with the prior art, the first shell and the second shell of the utility model are fused and fixed by the ultrasonic welding structure, and the corresponding sides between the shells are contacted with each other, thereby realizing the fixation of the surfaces between the shells, effectively reducing the gap distance between the shells and simplifying the assembly process, and the shells do not need to reserve screw positions, being beautiful and effectively reducing the occupied space of the product, thereby being capable of meeting the requirements of the existing market on the miniaturization and the lightening of the product; in addition, when the first shell and the second shell are fused and fixed, the sealing element is extruded and fixed in the containing cavity, the containing cavity permanently extrudes and fixes the sealing element, the displacement of the sealing element in the use process of a product is avoided, the zero displacement of the sealing element relative to the shell is effectively realized, the reduction or failure of the waterproof performance of the sealing element caused by the displacement relative to the shell is avoided, the waterproof performance of the product is effectively ensured, and the product can meet the waterproof requirement of IPX7 grade.

Preferably, the first shell is provided with a first groove, the second shell is provided with a second groove corresponding to the first groove, and the first groove and the second groove are butted to form the accommodating cavity.

Specifically, first recess and second recess are the arc wall respectively, just the diameter in holding chamber is less than the diameter of sealing member for the holding chamber can carry out effectual extrusion fixed to the sealing member, stops the aversion between the relative casing of sealing member.

Preferably, the sealing member is an elastic member.

Preferably, the sealing member is a cylindrical waterproof ring.

Preferably, the ultrasonic welding structure further comprises an ultrasonic line and an ultrasonic groove, the ultrasonic line is arranged on the first shell, and the ultrasonic groove is arranged on the second shell corresponding to the ultrasonic line.

Specifically, the ultrasonic line is in an inverted triangle or an inverted trapezoid, and the ultrasonic groove is in a rectangular arrangement.

Specifically, the width of the bottom side of the ultrasonic line is the same as that of the bottom side of the ultrasonic groove, so that the ultrasonic line can completely correspond to the ultrasonic groove, and the ultrasonic line can completely fall into the ultrasonic groove in the welding process.

Specifically, the ultrasonic line and the ultrasonic groove are in concave-convex fit so as to meet more welding requirements.

Preferably, the first shell and the second shell are assembled to form a waterproof shell, the accommodating cavity is located in an inner layer of the waterproof shell, and the ultrasonic welding structure is located in an outer layer of the waterproof shell. The shells are welded and fixed on the outer layer, the ultrasonic welding structures are reasonably distributed, so that the shells can generate large stress to realize reliable connection of the two shells, and the accommodating cavity is further guaranteed to be effectively and permanently extruded and fixed on the sealing piece.

Drawings

Fig. 1 is a schematic cross-sectional view of the waterproof structure for ultrasonic welding in a disassembled state according to the present invention.

Fig. 2 is a schematic cross-sectional view of the waterproof structure for ultrasonic welding in an assembled state according to the present invention.

Fig. 3 is a schematic view of fig. 2 with the seal removed.

Fig. 4 is a schematic distribution diagram of the ultrasonic welding structure and the accommodating cavity of the present invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 to 3, the ultrasonic welding waterproof structure 100 of the present embodiment includes a first housing 10, a second housing 20 and a sealing member 30, wherein the first housing 10 and the second housing 20 are disposed opposite to each other, an ultrasonic welding structure 40 is disposed at a joint of the first housing 10 and the second housing 20, the first housing 10 and the second housing 20 are assembled to form an accommodating cavity 50, and the sealing member 30 is pressed and sealed in the accommodating cavity 50 when the first housing 10 and the second housing 20 are fused and fixed by the ultrasonic welding structure 40. The first casing 10 and the second casing 20 are plastic casings suitable for ultrasonic welding, and the sealing member 30 is an elastic member, specifically a waterproof ring in a cylindrical shape, however, the shape of the sealing member 30 may be selected according to actual production requirements, and the specific shape of the sealing member 30 is not limited herein.

Because first casing 10 and second casing 20 are equipped with ultrasonic bonding structure 40 in the junction, the welding department between the casing can be with the help of current supersonic generator (not shown) to realize the assembly process fast promptly, its assembling process is simple, need not to lock the screw operation, and assemble through the ultrasonic bonding mode, effectively avoid first casing 10 and second casing 20 to produce great gap after assembling, make the product whole more pleasing to the eye, and inside water smoke and/or liquid are difficult to permeate the product through tiny gap, effectively prolong the life of product.

Referring to fig. 1-3, the first housing 10 has a first groove 11, the second housing 20 has a second groove 21 corresponding to the first groove 11, and the first groove 11 and the second groove 21 are connected to form an accommodating cavity 50. When the first housing 10 and the second housing 20 are assembled, the first groove 11 and the second groove 21 are butted against each other to form a receiving cavity 50 as shown in fig. 3, and the sealing member 30 is sealed in the receiving cavity 50 in a compression manner in a closed wrapping manner as shown in fig. 2. Because the sealing member 30 is sealed in the accommodating cavity 50 by extrusion, when the sealing member 30 is locked in the accommodating cavity 50, the displacement space of the sealing member 30 relative to the accommodating cavity 50 is zero, namely, the displacement space of the sealing member 30 relative to the two shells is zero, so that the accommodating cavity 50 forms permanent extrusion fixation on the sealing member 30, the displacement of the sealing member 30 in the product using process is avoided, the zero displacement between the sealing member 30 relative to the shells is effectively realized, the reduction or failure of the waterproof performance of the sealing member 30 caused by the displacement between the relative shells is avoided, the waterproof performance of the product is effectively ensured, and the product can meet the waterproof requirement of IPX7 grade.

Further, for better permanently pressing and fixing the sealing element 30 in the accommodating cavity 50, the first groove 11 and the second groove 21 of the embodiment are arc grooves shown in fig. 1 respectively, the diameter of the accommodating cavity 50 is smaller than that of the sealing element 30, and radians of the two arc grooves are reasonably arranged, so that the two arc grooves are butted to form an oval structure, the cylindrical sealing element 30 can be pressed and filled in the whole oval structure, the sealing element 30 is effectively pressed and fixed, and the displacement of the sealing element 30 relative to the shell is avoided.

Referring to fig. 1, the ultrasonic welding structure 40 of the present embodiment includes an ultrasonic line 41 and an ultrasonic groove 42, the ultrasonic line 41 is disposed on the first casing 10, and the ultrasonic groove 42 is disposed on the second casing 20 corresponding to the ultrasonic line 41. The ultrasonic line 41 is arranged in an inverted triangle or an inverted trapezoid, and the ultrasonic groove 42 is arranged in a rectangle. Specifically, the width of the bottom side of the ultrasonic line 41 is the same as that of the bottom side of the ultrasonic groove 42, so that the ultrasonic line 41 can completely correspond to the ultrasonic groove 42, and the ultrasonic line 41 can completely fall into the ultrasonic groove 42 in the welding process. Of course, in order to meet more production welding requirements, in other embodiments, the ultrasonic line 41 and the ultrasonic groove 42 may have concave-convex fit with other shapes, such as convex-convex fit, concave-convex fit, inverted polygon shape, concave-convex fit or other irregular shape fit, so as to meet more welding requirements, and therefore, the specific shapes of the ultrasonic line 41 and the ultrasonic groove 42 are not limited herein.

The first casing 10 and the second casing 20 of the present embodiment are plastic casings such as a power supply box, a battery box, a charger, and an adapter, but may be other types of casings that require waterproof. As shown in fig. 2 and 4, the first shell 10 and the second shell 20 are assembled to form a waterproof shell, the accommodating cavity 50 is located at the inner layer of the waterproof shell, and the ultrasonic welding structure 40 is located at the outer layer of the waterproof shell. The shells are welded and fixed on the outer layer, the ultrasonic welding structures 40 are reasonably distributed, and a plurality of continuous or spaced ultrasonic welding structures 40 are distributed on the outer layer of the waterproof shell as shown in fig. 4, so that the waterproof shell generates large stress to realize reliable connection of the two shells, and the accommodating cavity 50 is further ensured to effectively and permanently extrude and fix the sealing element 30.

The step of ultrasonically welding the first and second housings 10 and 20 will be described in detail below.

Referring to fig. 1 and 2, the first housing 10 and the second housing 20 are respectively installed in an installation station of a corresponding mold (not shown), then the sealing member 30 is placed in the first groove 11/the second groove 21, the ultrasonic line 41 of the first housing 10 is aligned and inserted into the ultrasonic groove 42 of the second housing 20, and an external force is applied to lock the first housing 10 and the second housing 20, so that the sealing member 30 is pressed and sealed in the accommodating cavity 50 formed by the first groove 11 and the second groove 21. After the pre-operation is completed, the ultrasonic generator is started, the ultrasonic generator fuses the ultrasonic rays 41 in the ultrasonic groove 42, so that the first shell 10 and the second shell 20 are welded together, and at this time, the sealing member 30 is permanently pressed and sealed in the accommodating cavity 50, so that the waterproof assembly of the first shell 10 and the second shell 20 is realized.

With reference to fig. 1-4, the first casing 10 and the second casing 20 of the present invention are fused and fixed by the ultrasonic welding structure 40, and the corresponding sides of the casings are in contact with each other, so as to fix the surfaces of the casings, effectively reduce the gap distance between the casings and simplify the assembly process, and the casings do not need to reserve screw positions, so that the appearance is beautiful, the occupied space of the product is effectively reduced, and the requirements of the existing market for miniaturization and lightening of the product can be satisfied; in addition, when the first shell 10 and the second shell 20 are fused and fixed, the sealing element 30 is extruded and fixed in the accommodating cavity 50, and the accommodating cavity 50 forms permanent extrusion and fixation on the sealing element 30, so that the displacement of the sealing element 30 in the use process of a product is avoided, zero displacement of the sealing element 30 relative to the shell is effectively realized, the reduction or failure of the waterproof performance of the sealing element 30 caused by the displacement relative to the shell is avoided, the waterproof performance of the product is effectively ensured, and the product can meet the waterproof requirement of IPX7 grade.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims (10)

1. The utility model provides a waterproof structure of ultrasonic bonding which characterized in that: including first casing, second casing and sealing member, first casing and second casing set up relatively, first casing and second casing are equipped with the ultrasonic bonding structure in the junction, first casing and second casing assembly form the holding chamber, just first casing and second casing borrow when the ultrasonic bonding structure fuses fixedly, the sealing member is squeezed seal in the holding intracavity.

2. An ultrasonic welding waterproof construction as claimed in claim 1 wherein: the first shell is provided with a first groove, the second shell is provided with a second groove corresponding to the first groove, and the first groove and the second groove are in butt joint to form the accommodating cavity.

3. An ultrasonic welding waterproof construction as claimed in claim 2 wherein: the first groove and the second groove are arc grooves respectively, and the diameter of the accommodating cavity is smaller than that of the sealing piece.

4. An ultrasonic welding waterproof construction as claimed in claim 1 wherein: the sealing element is an elastic element.

5. An ultrasonic welding waterproof construction as claimed in claim 1 wherein: the sealing member is a cylindrical waterproof ring.

6. An ultrasonic welding waterproof construction as claimed in claim 1 wherein: the ultrasonic wire is arranged on the first shell, and the ultrasonic groove corresponds to the ultrasonic wire arranged on the second shell.

7. An ultrasonic welding waterproof construction as claimed in claim 6 wherein: the ultrasonic line is in the inverted triangle or inverted trapezoid setting, the ultrasonic groove is in the rectangle setting.

8. An ultrasonic welding waterproof construction as claimed in claim 6 wherein: the width of the bottom edge of the ultrasonic line is the same as that of the bottom edge of the ultrasonic groove.

9. An ultrasonic welding waterproof construction as claimed in claim 6 wherein: the ultrasonic line and the ultrasonic groove are in concave-convex fit.

10. An ultrasonic welding waterproof construction as claimed in claim 1 wherein: the first shell and the second shell are assembled to form a waterproof shell, the accommodating cavity is located in the inner layer of the waterproof shell, and the ultrasonic welding structure is located in the outer layer of the waterproof shell.

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