CN114497837A - Improved plastic ultrasonic welding structure and process - Google Patents
Improved plastic ultrasonic welding structure and process Download PDFInfo
- Publication number
- CN114497837A CN114497837A CN202111575423.2A CN202111575423A CN114497837A CN 114497837 A CN114497837 A CN 114497837A CN 202111575423 A CN202111575423 A CN 202111575423A CN 114497837 A CN114497837 A CN 114497837A
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- CN
- China
- Prior art keywords
- shearing
- fixing column
- overflow groove
- upper cover
- glue overflow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000004033 plastic Substances 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 title claims abstract description 21
- 238000010008 shearing Methods 0.000 claims abstract description 52
- 239000003292 glue Substances 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000004927 fusion Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 5
- 238000004023 plastic welding Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/16—Organic material
Abstract
The invention discloses an improved plastic ultrasonic welding structure which comprises an upper cover, a lower cover and an electrified base material, wherein the upper cover is provided with an inwards sunken glue overflow groove, the lower cover is provided with a raised shearing fixing column, the shearing fixing column is arranged in a hemispherical shape, the glue overflow groove is arranged in a T shape, and the lower cover is arranged in the glue overflow groove of the upper cover through the shearing fixing column. The invention belongs to the technical field of welding structures, and particularly provides an improved plastic ultrasonic welding structure and a process, wherein the problem of main defects of ultrasonic sealing can be solved by modifying an internal structure under the condition of not changing the appearance of a product, and the improved ultrasonic sealing achieves a reliable connecting effect.
Description
Technical Field
The invention belongs to the technical field of welding structures, and particularly relates to an improved plastic ultrasonic welding structure and a process.
Background
Ultrasonic welding is a quick, clean, and efficient assembly process for assembling thermoplastic parts, and composite components.
The working and welding principle of the ultrasonic welding machine is that the heat energy generated by the high-speed vibration frequency of the ultrasonic wave is utilized to weld the rubber parts, and the currently applied bonding between the outer covers of the plastic products, the bonding between the plastic products and metal fittings and the bonding between other non-plastic materials are realized. It replaces the mechanical firmness of solvent viscose and other bonding processes, and is an advanced assembly technology. And ultrasonic wave fusion not only has the connection assembly function, still has dampproofing, waterproof sealed effect.
The current commonly used ultrasonic welding structure mainly comprises two types, wherein the first type is an Energy Director (fuse wire), the fuse wire is a triangular protruding material formed on one of two welding surfaces, the basic function of the fuse wire is to gather Energy, so that the fuse wire can reach the melting temperature as soon as possible, and a better welding effect is obtained; the second is Shear (Shear) technology, where a small area of material initially in contact is melted and then guided vertically down the wall to a controlled orientation in the plastic part to form a fusion weld, but the Shear configuration is difficult to control relative to the fuse.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention provides an improved plastic ultrasonic welding structure and process for ultrasonic welding of plastic outer covers of various interphone batteries, which can solve the main defect problem of ultrasonic sealing by modifying the internal structure under the condition of not changing the appearance of the product, and the improved ultrasonic sealing achieves reliable connection effect.
The technical scheme adopted by the invention is as follows: the invention discloses an improved plastic ultrasonic welding structure which comprises an upper cover, a lower cover and an electrified base material, wherein the upper cover and the lower cover are connected through welding, the electrified base material is respectively arranged on the upper cover and the lower cover, an inwards sunken glue overflow groove is formed in the upper cover, a protruding shearing fixing column is arranged on the lower cover, and the lower cover is arranged in the glue overflow groove of the upper cover through the shearing fixing column.
Furthermore, the shearing and fixing column is arranged in a hemispherical shape, the glue overflow groove is arranged in a T shape, the diameter of the shearing and fixing column is larger than the small-diameter end of the glue overflow groove, and the diameter of the shearing and fixing column is smaller than the large-diameter end of the glue overflow groove.
Preferably, the bottom of the glue overflow groove is designed to be right-angled.
Further, the scheme also discloses an improved plastic ultrasonic welding process, which comprises the following steps:
the method comprises the following steps: the design of the original bevel shearing structure of the upper cover part is improved into the design of an overflow glue groove with a T-shaped section;
step two: the original right-angle shearing structure design of the lower cover part is improved into a semi-spherical shearing structure design to form a shearing fixing column;
step three: the lower cover is arranged in the glue overflow groove of the upper cover through the shearing and fixing column, the shearing and fixing column firstly contacts one end, close to the small diameter, of the large diameter of the glue overflow groove, small-area materials, which are contacted with the glue overflow groove, of the shearing and fixing column are firstly melted, and then the materials continue to vertically downwards along the wall surface and are guided to the small diameter end of the glue overflow groove of the upper cover in a controlled mode to form fusion welding.
Furthermore, the depth of the shearing and fixing column after being ultrasonically sealed with the small-diameter end of the glue overflowing groove is 0.35 mm.
The invention relates to an improved plastic ultrasonic welding structure and a process, which adopt the structure and have the following beneficial effects:
1. can prevent that upper cover, lower cover ultrasonic sealing side distortion from producing the involution clearance, make the shearing volume of upper cover and lower cover more, guarantee the involution stability, the shearing volume increases can strengthen the firm degree of involution welding, because of increasing the shearing volume and having reduced the flash that the contact clearance can lead to the involution process and increase, the flash increases and can lead to the involution bad, so increase the problem that darker flash tank prevents the flash and increase bottom the lower cover.
2. The main defect problem of ultrasonic sealing can be solved by only modifying the connecting structure of the upper cover and the lower cover inside under the condition of not changing the appearance of the product.
3. The improved right-angle double ultrasonic sealing structure is simple and reliable, can meet the requirements of waterproof and drop tests, and is convenient to popularize.
4. Based on the characteristics of the conventional ultrasonic sealing structure, the design improves the structural characteristics of the existing fuse wire and the key elements of the shear sealing structure, and can adjust the structural design according to the sealing requirements of various products and the requirements of the characteristics of the sealing reliability degree so as to achieve the optimal performance of various ultrasonic sealing.
Drawings
FIG. 1 is a schematic view of an improved ultrasonic plastic welding structure and process according to the present invention;
FIG. 2 is a schematic view of a lower cover of an improved ultrasonic plastic welding structure and process of the present invention;
FIG. 3 is an exploded view of an improved ultrasonic plastic welding structure and process of the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 1;
FIG. 5 is a partial enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic view of a shear ultrasonic weld portion of an improved plastic ultrasonic weld configuration and process of the present invention;
FIG. 7 is a schematic view of the ultrasonic wire bonding contact of example 1 using the ultrasonic structure of shear without the prior art modification;
FIG. 8 is a schematic view of an ultrasonic wire bonding process using a non-modified version of the sheared ultrasonic structure of example 1;
FIG. 9 is a schematic view showing the completion of ultrasonic wire bonding in the case of example 1 in which the ultrasonic structure using shearing was not modified.
The device comprises an upper cover, a lower cover, a power-on substrate, a shearing fixing column, a glue overflowing groove and a cutting fixing column, wherein the upper cover is 1, the lower cover is 2, the power-on substrate is 3, the shearing fixing column is 4, and the glue overflowing groove is 5.
In fig. 6, a denotes a weld fusion region.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present embodiment is directed to a welding structure and a welding process of an outer cover of a battery of an intercom.
Example 1, sealing is achieved using a sheared ultrasonic structure, the following is a technical solution before improvement:
referring to fig. 7-9, the structure of the lower cover is an ultrasonic structure of an inclined plane shearing type, the actual sealing effect with the upper cover is not ideal enough, the sealing is realized by adopting a shearing ultrasonic structure due to structural reasons, but the ultrasonic welding effect of the actual product is not ideal under the limitation of the product size and structure due to the structure, the defect of easy cracking after complete waterproof and drop tests is not achieved, the main problem is that the local effect of the ultrasonic bonding line of the upper cover and the lower cover is poor through section analysis after ultrasonic disassembly, and the ultrasonic line is bent inwards and deformed due to the weak size and strength of the end part due to the reaction force of a contact point, so that the welding performance is affected.
The shearing and fixing column 4 is arranged in a hemispherical shape, the glue overflow groove 5 is arranged in a T shape, the diameter of the shearing and fixing column 4 is larger than the small-diameter end of the glue overflow groove 5, and the diameter of the shearing and fixing column 4 is smaller than the large-diameter end of the glue overflow groove 5. The bottom of the glue overflow groove 5 is designed to be right-angled.
In this embodiment, the improved plastic ultrasonic welding process comprises the following steps:
the method comprises the following steps: the original bevel shearing structure design of the upper cover 1 part is improved into a glue overflow groove 5 with a T-shaped section;
step two: the original right-angle shearing structure design of the lower cover 2 part is improved into a semi-spherical shearing structure design to form a shearing fixing column 4;
step three: the lower cover 2 is arranged in a glue overflow groove 5 of the upper cover 1 through a shearing and fixing column 4, the shearing and fixing column 4 firstly contacts one end, close to the small diameter, of the glue overflow groove 5, the small-area material, which is contacted with the glue overflow groove 5, of the shearing and fixing column 4 is firstly melted, and then the small-area material continues to vertically downwards along the wall surface and is guided to the small-diameter end of the glue overflow groove 5 of the upper cover 1 in a controlled manner to form fusion welding.
Wherein the depth of the shearing and fixing column 4 and the small-diameter end of the glue overflow groove 5 after ultrasonic sealing is 0.35 mm.
In embodiment 2, 1 increases 2 right angle department position weld zone territories of upper cover, 2 supersound lines of lower cover are revised as semi-circular shearing design, can prevent that 2 supersound involution sides of upper and lower covers warp and produce the involution clearance, make the shearing capacity of upper cover 1 and lower cover 2 more, guarantee the involution stability, the shearing capacity increases can strengthen involution welded firm degree, because of increasing the shearing capacity and having reduced the flash that the contact clearance can lead to the involution process and increase, the flash increases can lead to the involution bad, so increase the problem that darker flash groove prevents the flash and increase in 2 bottoms of lower cover.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides an improved generation plastic ultrasonic bonding structure which characterized in that: the electric welding machine comprises an upper cover, a lower cover and an electrified base material, wherein the upper cover and the lower cover are connected through welding, the electrified base material is respectively arranged on the upper cover and the lower cover, an inward sunken glue overflow groove is formed in the upper cover, a protruding shearing fixing column is arranged on the lower cover, and the lower cover is arranged in the glue overflow groove of the upper cover through the shearing fixing column.
2. The improved plastic ultrasonic welding structure of claim 1, wherein: the shearing and fixing column is arranged in a hemispherical shape, the glue overflow groove is arranged in a T shape, the diameter of the shearing and fixing column is larger than the small-diameter end of the glue overflow groove, and the diameter of the shearing and fixing column is smaller than the large-diameter end of the glue overflow groove.
3. The improved plastic ultrasonic welding structure of claim 1, wherein: the bottom of the glue overflow groove is designed to be right-angled.
4. The improved plastic ultrasonic welding structure of claim 1, wherein: the improved plastic ultrasonic welding process comprises the following steps:
the method comprises the following steps: the design of the original bevel shearing structure of the upper cover part is improved into the design of an overflow glue groove with a T-shaped section;
step two: the original right-angle shearing structure design of the lower cover part is improved into a semi-spherical shearing structure design to form a shearing fixing column;
step three: the lower cover is arranged in the glue overflow groove of the upper cover through the shearing and fixing column, the shearing and fixing column firstly contacts one end, close to the small diameter, of the large diameter of the glue overflow groove, small-area materials, which are contacted with the glue overflow groove, of the shearing and fixing column are firstly melted, and then the materials continue to vertically downwards along the wall surface and are guided to the small diameter end of the glue overflow groove of the upper cover in a controlled mode to form fusion welding.
5. The improved plastic ultrasonic welding structure of claim 4, wherein: the depth of the shearing and fixing column after being ultrasonically sealed with the small-diameter end of the glue overflowing groove is 0.35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111575423.2A CN114497837B (en) | 2021-12-22 | 2021-12-22 | Improved plastic ultrasonic welding structure and process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111575423.2A CN114497837B (en) | 2021-12-22 | 2021-12-22 | Improved plastic ultrasonic welding structure and process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114497837A true CN114497837A (en) | 2022-05-13 |
| CN114497837B CN114497837B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111575423.2A Active CN114497837B (en) | 2021-12-22 | 2021-12-22 | Improved plastic ultrasonic welding structure and process |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6176953B1 (en) * | 1998-09-22 | 2001-01-23 | Motorola, Inc. | Ultrasonic welding process |
| KR20080096198A (en) * | 2007-04-27 | 2008-10-30 | 삼성전자주식회사 | Structure for fusion welding using supersonic wave |
| CN206718497U (en) * | 2017-04-22 | 2017-12-08 | 中山市天键电声有限公司 | Earphone microphone shell ultrasonic welding structure |
| CN209111541U (en) * | 2018-10-24 | 2019-07-16 | 深圳市睿德电子实业有限公司 | A kind of ultrasonic compressing structure of plastic shell |
| CN209201268U (en) * | 2018-12-27 | 2019-08-02 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
| CN209786813U (en) * | 2019-01-02 | 2019-12-13 | 深圳市航嘉驰源电气股份有限公司 | Shell with ultrasonic welding structure and charger |
| CN209786098U (en) * | 2019-05-10 | 2019-12-13 | 东莞塔菲尔新能源科技有限公司 | Assembly structure of battery top cover and shell and battery |
| CN210648996U (en) * | 2019-07-30 | 2020-06-02 | 珠海市古鑫电子科技有限公司 | Ultrasonic welding structure |
| CN112428586A (en) * | 2021-01-26 | 2021-03-02 | 中聚科技股份有限公司 | Ultrasonic welding structure with excellent air tightness, welding device and welding method |
| CN212783605U (en) * | 2020-09-18 | 2021-03-23 | 天能帅福得能源股份有限公司 | Ultrasonic gluing sealing structure for battery box shell |
| CN213150882U (en) * | 2020-10-14 | 2021-05-07 | 杨瑞泽 | Plastic casing for button cell |
-
2021
- 2021-12-22 CN CN202111575423.2A patent/CN114497837B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6176953B1 (en) * | 1998-09-22 | 2001-01-23 | Motorola, Inc. | Ultrasonic welding process |
| KR20080096198A (en) * | 2007-04-27 | 2008-10-30 | 삼성전자주식회사 | Structure for fusion welding using supersonic wave |
| CN206718497U (en) * | 2017-04-22 | 2017-12-08 | 中山市天键电声有限公司 | Earphone microphone shell ultrasonic welding structure |
| CN209111541U (en) * | 2018-10-24 | 2019-07-16 | 深圳市睿德电子实业有限公司 | A kind of ultrasonic compressing structure of plastic shell |
| CN209201268U (en) * | 2018-12-27 | 2019-08-02 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
| CN209786813U (en) * | 2019-01-02 | 2019-12-13 | 深圳市航嘉驰源电气股份有限公司 | Shell with ultrasonic welding structure and charger |
| CN209786098U (en) * | 2019-05-10 | 2019-12-13 | 东莞塔菲尔新能源科技有限公司 | Assembly structure of battery top cover and shell and battery |
| CN210648996U (en) * | 2019-07-30 | 2020-06-02 | 珠海市古鑫电子科技有限公司 | Ultrasonic welding structure |
| CN212783605U (en) * | 2020-09-18 | 2021-03-23 | 天能帅福得能源股份有限公司 | Ultrasonic gluing sealing structure for battery box shell |
| CN213150882U (en) * | 2020-10-14 | 2021-05-07 | 杨瑞泽 | Plastic casing for button cell |
| CN112428586A (en) * | 2021-01-26 | 2021-03-02 | 中聚科技股份有限公司 | Ultrasonic welding structure with excellent air tightness, welding device and welding method |
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| CN114497837B (en) | 2024-03-26 |
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