CN109905983B - Welding method of electric appliance display device - Google Patents
Welding method of electric appliance display device Download PDFInfo
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- CN109905983B CN109905983B CN201711307655.3A CN201711307655A CN109905983B CN 109905983 B CN109905983 B CN 109905983B CN 201711307655 A CN201711307655 A CN 201711307655A CN 109905983 B CN109905983 B CN 109905983B
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- 238000003466 welding Methods 0.000 title claims abstract description 229
- 238000000034 method Methods 0.000 title claims abstract description 44
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- 230000007704 transition Effects 0.000 claims description 5
- 239000000499 gel Substances 0.000 description 41
- 210000003205 muscle Anatomy 0.000 description 33
- 239000003292 glue Substances 0.000 description 20
- 230000009471 action Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a welding method of an electric appliance display device, wherein the electric appliance display device comprises a display structure and a mounting structure, the display structure is ultrasonically welded on the mounting structure, and the mounting structure is provided with a positioning structure for preventing the display structure from shifting and/or overturning in the welding process. The positioning structure prevents the display structure from shifting and/or overturning in the welding process, and the translation freedom degree and the overturning freedom degree of the positioning display structure prevent the display structure from being inclined, and the gap between the display structure and the mounting structure is uneven.
Description
Technical Field
The invention relates to the field of welding methods of electric appliance display devices, in particular to a welding method of an electric appliance display device.
Background
In modern society, people increasingly rely on the use of electric appliances in scenes such as life, work, study, industry and the like. In particular, household appliances used in daily life are increasingly indispensable in daily life of people. Generally, an electric appliance needing human-computer interaction comprises an interaction interface, an outer layer of the interaction interface is a transparent display structure, for example, a household electric appliance generally comprises a wide user interaction interface, wherein the outer layer of the interface is the transparent display structure, and the display structure is a display screen generally and is used for light transmission display, protection of internal electric appliance parts, provision of pattern information of the interaction interface and the like.
There are many ways of connecting and fixing the display structure to the mounting structure such as the housing of the electrical appliance, for example, by gluing, but the glued display structure needs to consider the sealing problem, is difficult to operate, is easy to make errors, and the sealing property and the connection firmness can not be ensured. At present, the high and new technology in the industry is ultrasonic welding, and sufficient sealing performance and connection firmness can be ensured through the ultrasonic welding.
However, the problems of display structure deviation, overbonding, molten glue overflow and the like usually occur during welding.
The display structure shifts to cause uneven gaps between the display structure and the mounting structure, the sizes of the gaps are different, the appearance is poor, the overall attractiveness is affected, and the use of customers is affected.
The super welding can lead to the melten gel excessive, can see the melten gel that overflows in the gap between display structure and mounting structure, influences whole aesthetic property, still produces the local adhesion that should not adhere easily, and then produces stress concentration scheduling problem, reduces life.
In addition, some mounting structures are as shown in fig. 7, because the parting surface is arranged on the back of the mounting structure, the drawing angle is larger and larger from the back of the mounting structure to the front, and then the gap between the mounting structure and the display structure seen in appearance is large, so that the visual effect of a user is poor, and because of the drawing angle, the gap between the mounting structure and the display structure at a part of the position is small, and then the mounting structure and the display structure are highly likely to be adhered in a large area, so that stress concentration is easily generated at the adhered part, and the service life of the display structure is reduced.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a welding method of an electric appliance display device.
In order to solve the technical problems, the invention adopts the technical scheme that: the welding method of the electric appliance display device comprises a display structure and a mounting structure, wherein the display structure is welded on the mounting structure in an ultrasonic mode, and a positioning structure for preventing the display structure from shifting and/or overturning in the welding process is arranged on the mounting structure.
Furthermore, location structure is including setting up a plurality of location muscle on mounting structure, the location muscle includes the locating surface, shows that the structure is at least partly with locating surface clearance fit.
Furthermore, the positioning surface is parallel to the welding direction of the display structure.
Further, the positioning surface extends in the welding direction and protrudes out of the back surface of the display structure.
Further, the location muscle still includes the guide part of direction display structure assembly, and is preferred, the guide part includes the spigot surface, and this spigot surface sets up the tip at the location muscle, and is more preferred, the spigot surface is from the direction inclined plane of locating muscle tip to the slope extension of locating surface.
Further, the display structure comprises a display part and a welding part, and the welding part comprises a welding rib; the mounting structure comprises a mounting hole, and the display part is sleeved in the mounting hole; the welding part is welded with the mounting structure through a welding rib in an ultrasonic mode, at least part of the welding part is in clearance fit with the positioning face, and preferably, the shape of the display part is matched with the mounting hole.
Furthermore, the rear side of the display structure is convexly provided with a welding part, and the welding rib is convexly arranged towards the back of the mounting structure in the welding part and is ultrasonically welded with the back of the mounting structure.
Furthermore, the welding rib is arranged on the side edge of the welding part, and the cross section area of the end part welded by the welding rib and the mounting structure is the minimum.
Further, the cross section of the welding rib along the welding direction is gradually reduced toward the back of the mounting structure, and preferably, the welding rib includes a first inclined surface extending from the end portion to the display portion and a second inclined surface extending opposite to the first inclined surface.
Furthermore, the side surface of the welding part comprises a surface parallel to the welding direction, and the surface is in clearance fit with the positioning surface and is in smooth transition with the second inclined surface.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. Ultrasonic welding can guarantee the firm nature of connection, can guarantee abundant leakproofness again.
2. The positioning structure prevents that the display structure from producing skew and/or upset in welding process, and the translation degree of freedom and the upset degree of freedom of positioning structure location display structure prevent that the display structure is crooked, and the display structure is uneven with mounting structure gap, and the gap is not of uniform size.
3. The positioning surface is parallel to the welding direction of the display structure, and the display structure is positioned to move in the direction parallel to the welding direction.
4. The locating surface is protruded out of the back extension that shows the structure on welding direction for the locating surface is at welding direction and is straight to showing the structure and producing the positioning action, makes to show the structure and can not surpass the positioning range of locating surface because of the too big scheduling problem of action, guarantees positioning action and location effect.
5. The guide part is used for guiding the installation of the display structure in the assembly process of the display structure, and guiding the display structure to be installed in the position positioned by the positioning part. The problems that the display structure is installed and dislocated in the early installation stage or the problems that the installation difficulty is large and the time is long due to the difficulty in positioning are solved.
6. The structure is simple, the forming is convenient, the reliability is high, the usability is good, and the economical efficiency is good.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a rear view of an appliance display device of the present invention;
FIG. 2 is a front view of the display device of the appliance of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is a cross-sectional view of the weld of FIG. 2;
FIG. 6 is an enlarged view of section C of FIG. 5;
fig. 7 is a schematic diagram of the effect of the prior art in the die drawing of the mounting hole.
In the figure: 1. a display structure; 11. welding the part; 111. welding ribs; 1111. a first inclined plane; 1112. a second inclined plane; 12. a display unit; 13. displaying a structural fillet; 2. a mounting structure; 21. positioning ribs; 211. positioning the surface; 212. a guide surface; 22. mounting hole fillets; 23. a first side surface; 24. a second side surface; 3. the molten glue holding structure.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following further describes embodiments of the present invention with reference to the accompanying drawings.
Example one
As shown in fig. 1-6, a welding method for an electrical display device includes a display structure 1 and a mounting structure 2, the display structure 1 is ultrasonically welded on the mounting structure 2, and the mounting structure 2 is provided with a positioning structure for preventing the display structure 1 from shifting and/or turning during the welding process.
In the above scheme, display structure 1 and mounting structure 2 of electrical apparatus display device adopt ultrasonic bonding's mode to connect fixedly, can guarantee the fastness of connecting, can guarantee abundant leakproofness again, protect inside electrical components not receive the injury of steam, debris etc.. However, in the existing ultrasonic welding, the display structure 1 is skewed due to deviation in the welding process, the gap between the display structure 1 and the mounting structure 2 is not uniform, or the gap between the display structure 1 and the mounting structure 2 is different in size. In order to prevent the display structure 1 from shifting during the welding process, the present embodiment provides a positioning structure on the mounting structure 2, which prevents the degrees of freedom of the display structure 1 in the direction perpendicular to the welding direction, including the X-axis translational degree of freedom, the X-axis flip degree of freedom, the Y-axis translational degree of freedom, and the Y-axis flip degree of freedom.
Further, location structure is including setting up a plurality of location muscle 21 on mounting structure 2, location muscle 21 is including locating surface 211, shows that structure 1 is at least partly with locating surface 211 clearance fit.
In the above scheme, the positioning rib 21 can be a narrow rib or a wide rib, and the purpose can be achieved by arranging a plurality of narrow ribs in consideration of the problems of cost, materials, molding difficulty and the like, and the narrow ribs are preferred in the embodiment. In this embodiment, the positioning structure includes a plurality of positioning ribs 21, where the positioning ribs 21 are not only arranged in one direction, for example, a plane of the display structure 1 perpendicular to the welding direction is a rectangle, at least one positioning rib 21 is arranged on each side of the rectangle, and the positioning ribs 21 are arranged in each direction of the display structure 1, which may generate translation and turnover, in this embodiment, two positioning ribs 21 are arranged on each side of the rectangle, and the two positioning ribs 21 are not arranged together, but arranged with a distance therebetween; for example, if the surface of the display structure 1 perpendicular to the welding direction is circular or elliptical, at least three positioning ribs 21 are disposed on the periphery of the circular or elliptical shape, and the three positioning ribs 21 are not disposed in one direction or disposed close to each other, but disposed in three directions, respectively, so that the vibration direction of the display structure 1 during the welding process is limited to move within a triangle formed by the three positioning ribs 21, and preferably, a plurality of positioning ribs 21 are disposed. Location muscle 21 includes locating surface 211, shows that structure 1 is at least partly with locating surface 211 clearance fit, will show that the motion trail of structure 1 is injectd in the direction of following the motion of locating surface 211, with locating surface 211 clearance fit, shows that structure 1 can not produce skew and/or upset in welding process.
Further, in this embodiment, the positioning surface 211 is parallel to the welding direction of the display structure 1.
In the above scheme, the positioning surface 211 is parallel to the welding direction of the display structure 1, and the display structure 1 is positioned and moved in the direction parallel to the welding direction, and compared with the embodiment in which the positioning surface 211 extends along with the welding direction of the display structure 1, the embodiment completely eliminates the possibility of translation and/or turnover of the display structure 1 in the welding process.
Further, the positioning surface 211 extends to protrude from the back surface of the display structure 1 in the welding direction.
In the above solution, the positioning surface 211 protrudes from the back surface of the display structure 1 in the welding direction, that is, after the display structure 1 is assembled on the mounting structure 2, the height of the positioning surface 211 is higher than the back surface of the display structure 1, and meanwhile, during the welding process, the height of the positioning surface 211 is also higher than the back surface of the display structure 1. Make locating surface 211 produce the positioning action to display structure 1 at the welding direction always like this for display structure 1 can not be because of the too big scheduling problem of action surpasss the positioning range of locating surface 211, guarantees positioning action and location effect. In addition, because the display structure 1 is only a circle of very small surface or only a circle of line in contact with the positioning surface 211 for positioning, the display structure 1 is very easy to be separated from the range of the positioning surface 211 in the vibration process of welding, when the positioning surface 211 protrudes out of the back surface of the display structure 1 and extends, the positioning surface 211 is higher than all parts on the display structure 1 and is also higher than the parts in contact with the positioning surface 211, so that the display structure 1 is always positioned in the positioning range of the positioning surface 211, and the positioning effect is good.
Further, the positioning rib 21 further includes a guiding portion for guiding the assembly of the display structure 1, preferably, the guiding portion includes a guiding surface 212, the guiding surface 212 is disposed at an end portion of the positioning rib 21, and more preferably, the guiding surface 212 is a guiding inclined surface extending from the end portion of the positioning rib 21 to the positioning surface 211 in an inclined manner.
In the above solution, the guiding portion is used for guiding the installation of the display structure 1 in the assembling process of the display structure 1, and guiding the display structure 1 to be installed in the position where the positioning portion is located. The problems that the display structure 1 is installed and misplaced in the early installation stage or the problems that the installation difficulty is large and the time is long due to the difficulty in positioning are solved. The guide portion mainly serves as a guide surface 212 because surface guide has a better guide effect than line guide or point guide, and the guide surface 212 is provided at the end of the positioning rib 21 because the guide function needs to be performed during the assembly of the display structure 1 and should be provided at the position where the display structure 1 is first contacted, and the end of the positioning rib 21 is the position where the display structure 1 is first contacted. The display structure 1 is firstly correctly assembled with the mounting structure 2 under the guiding action of the guiding part, and then the deviation and/or overturn are avoided in the welding process under the action of the positioning structure.
Example two
As shown in fig. 1 to 6, this embodiment is a further limitation to the first embodiment, and discloses a welding method for an electrical display device, where the electrical display device includes a display structure 1 and a mounting structure 2, the display structure 1 is ultrasonically welded on the mounting structure 2, and the mounting structure 2 is provided with a positioning structure for preventing the display structure 1 from shifting and/or turning over during the welding process.
Further, the display structure 1 includes a display portion 12 and a welding portion 11, and the welding portion 11 includes a welding rib 111; the mounting structure 2 comprises a mounting hole, and the display part 12 is sleeved in the mounting hole; the welding portion 11 is ultrasonically welded with the mounting structure 2 through the welding rib 111, at least part of the welding portion 11 is in clearance fit with the positioning surface 211, and preferably, the shape of the display portion 12 is matched with that of the mounting hole. Welding muscle 111 forms whole muscle around display portion 12, and sealed welding display portion 12 and mounting structure 2 prevent that steam, foreign matter etc. from getting into the back of display portion 12 through the mounting hole, cause the injury to electrical components.
In the above solution, the display portion 12 of the display structure 1 is used for displaying a human-computer interface and other related functions, and the welding portion 11 is used for ultrasonically welding the whole display structure 1 to the mounting structure 2. In this embodiment, the mounting structure 2 is provided with an electric control board for controlling the display structure 1 and the electric appliance, and the display structure 1 is ultrasonically welded on the electric control board. The welding portion 11 comprises a welding rib 111, the welding rib 111 is a part which is melted under the action of ultrasonic waves in the welding process, the welding rib 111 contains a margin for melting at a welding joint, and the display portion 12 is ultrasonically welded on the mounting structure 2 through the welding rib 111 of the welding portion 11. The mounting structure 2 comprises a mounting hole, the display part 12 of the display structure 1 is sleeved in the mounting hole, and the shape of the display part 12 is matched with that of the mounting hole, so that a user looks beautiful when watching from the front of the display structure 1. In addition, because the display part 12 and the mounting hole have a mounting gap therebetween, in order to prevent the display part 12 from shifting and/or turning during the welding process, the mounting gap between the display part 12 and the mounting hole is uneven in size, which affects the appearance and the mounting effect of the display structure 1, or the local gap is too small to cause adhesion, and other problems, the mounting structure 2 is provided with a positioning structure, and at least part of the welding part 11 is in clearance fit with the positioning surface 211 of the positioning structure.
Furthermore, the rear side of the display structure 1 is protruded to form a welding portion 11, and the welding rib 111 is protruded from the welding portion 11 toward the back of the mounting structure 2 and is ultrasonically welded to the back of the mounting structure 2.
In the above scheme, in this embodiment, the welding portion 11 protrudes from the rear side of the display structure 1, the front portion of the display structure 1 that is not protruding forms the display portion 12, that is, the welding portion 11 protrudes from the side of the display portion 12, because the display portion 12 is sleeved in the mounting hole of the mounting structure 2, the welding portion 11 that is protruding is greater than the mounting hole, then the welding portion 11 is ultrasonically welded to the back of the mounting structure 2, and the welding portion 11 is ultrasonically welded to the back of the mounting structure 2 through the welding rib 111.
Further, the welding rib 111 is disposed on the side of the welding portion 11, and the cross-sectional area of the end portion of the welding rib 111 welded to the mounting structure 2 is the smallest.
In the above solution, the welding rib 111 is disposed on the side of the welding portion 11, so that the actual welding position has a corresponding distance from the display portion 12, and the problem that the molten adhesive overflows or adheres to the display portion 12 due to the proximity to the display portion 12 is prevented. Welding muscle 111 is minimum with mounting structure 2 welded tip cross sectional area, convenient welding, prevent that the melten gel from spilling over, still reduced the area of contact between welding muscle 111 and the mounting structure 2 simultaneously for it spills over the scheduling problem to weld and be difficult to produce the melten gel because the melten gel is many between display structure 1 and the mounting structure 2 more easily.
Further, the cross section of the welding rib 111 in the welding direction is gradually reduced toward the back surface of the mounting structure 2, and preferably, the welding rib 111 includes a first inclined surface 1111 extending from the end portion toward the display portion 12 and a second inclined surface 1112 extending opposite to the first inclined surface 1111.
In the above scheme, welding muscle 111 reduces towards mounting structure 2 back along the cross section of welding direction gradually, and convenient welding reduces the melten gel and spills over the possibility of emergence, has still reduced the area of contact between welding muscle 111 and the mounting structure 2 simultaneously for it spills over the scheduling problem to weld and be difficult to produce the melten gel because the melten gel is many between display structure 1 and the mounting structure 2 more easily. In a preferred embodiment, the cross section of the welding rib 111 in the welding direction is gradually reduced and is formed by two inclined surfaces, namely a first inclined surface 1111 and a second inclined surface 1112, on both sides of the welding rib 111, wherein the first inclined surface 1111 and the second inclined surface 1112 extend in opposite directions, and the first inclined surface 1111 extends from the end of the welding rib 111 towards the display part 12.
Further, the side surface of the welding portion 11 includes a mating surface which is in clearance fit with the positioning surface 211, and smoothly transitions with the second inclined surface 1112.
In the above scheme, the matching surface is in clearance fit with the positioning surface 211, and the positioning effect is better than that of the matching of the line or the point with the positioning surface 211. If the positioning surface 211 extends along the extending direction of the second inclined surface 1112, although a certain positioning effect can be achieved, an irreversible positioning defect is easily generated, and the problem of welding offset of the display structure 1 cannot be completely solved. Therefore, in the present embodiment, since the positioning surface 211 is parallel to the welding direction, the mating surface is also parallel to the welding direction.
EXAMPLE III
As shown in fig. 1-6, the welding method of the electric display device comprises a display structure 1 and a mounting structure 2, wherein the display structure 1 is ultrasonically welded on the mounting structure 2, and a molten glue containing structure 3 for preventing molten glue from overflowing to the front of the electric display device is arranged between the display structure 1 and the mounting structure 2.
In the above scheme, display structure 1 and mounting structure 2 of electrical apparatus display device adopt ultrasonic bonding's mode to connect fixedly, can guarantee the fastness of connecting, can guarantee abundant leakproofness again, protect inside electrical components not receive the injury of steam, debris etc.. However, conventional ultrasonic welding has problems such as overbonding and overbonding. Because ultrasonic bonding is in welding process, the position that will weld melts mutual bonding each other, if the super welding appears, can lead to the melten gel too much, too much melten gel flows to the mounting gap between display structure 1 and the mounting structure 2 for can see the melten gel from display device's front, very influence display device's pleasing to the eye. In addition, too much glue may cause the mounting structure 2 to be bonded to a location of the display structure 1 where the mounting structure is not suitable for connection, resulting in stress concentration at the location, which greatly affects the strength and the service life of the display structure 1. The invention solves the problems, a molten glue containing structure 3 for preventing molten glue from overflowing to the front of the electric appliance display device is arranged between the display structure 1 and the mounting structure 2, the molten glue containing structure 3 provides a containing space for the molten glue, and the containing space can not be seen or can not be seen from the front of the electric appliance display device, so that a space is provided for the molten glue or the molten glue overflowing during super-welding. Or the molten glue accommodating structure 3 adopts the mode of dredging to transfer the molten glue, or the molten glue accommodating structure 3 adopts other modes to dredge or transfer or utilizes the excessive molten glue that the super welding produced, prevents that the molten glue from overflowing.
Further, the molten glue containing structure 3 is arranged at a position where the front surface of the display device is not visible, and comprises a space for containing molten glue.
In the above scheme, melten gel containing structure 3 sets up in the positive invisible position of display device including the space that holds the melten gel, namely sees not melten gel containing structure 3 from display device's front, also sees the melten gel that holds in the containing space.
Further, show structure 1 and include display part 12 and weld part 11, the side protrusion of weld part 11 sets up in display part 12, the terminal convex welding muscle 111 that is equipped with towards mounting structure 2 of side of weld part 11, show structure 1 through welding muscle 111 and 2 ultrasonic bonding of mounting structure, melten gel containing structure 3 includes the space between welding muscle 111 and the display part 12.
In the above solution, the display portion 12 of the display structure 1 is used for displaying a human-computer interface and other related functions, and the welding portion 11 is used for ultrasonically welding the whole display structure 1 to the mounting structure 2. Welding portion 11 is including the welding muscle 111 that protrudes from welding portion 11 and set up, welding muscle 111 is the part of melting under the ultrasonic wave effect in welding process promptly, welding muscle 111 contains the surplus that is used for the melting in welded joint department, display portion 12 is on mounting structure 2 through welding muscle 111 ultrasonic welding of welding portion 11. The welding rib 111 and the display part 12 have a certain distance therebetween, the distance forms a space between the welding rib 111 and the display part 12, the molten glue flows from the welding rib 111 to the display part 12 and needs to pass through the space, and the part of the space which is not visible in the front of the display device is a part of the molten glue containing structure 3.
Further, mounting structure 2 includes the mounting hole, the 12 suits of display part are in the mounting hole, welding portion 11 is through welding muscle 111 and 2 back ultrasonic bonding of mounting structure, include the weld gap between 11 and the 2 backs of mounting structure of welding portion, melten gel holding structure 3 includes this weld gap, and is preferred, the shape of display part 12 and mounting hole matches.
In the above scheme, in this embodiment, the mounting structure 2 is provided with an electric control board for controlling the display structure 1 and the electric appliance, and the display structure 1 is ultrasonically welded on the electric control board. The mounting structure 2 includes a mounting hole, the display portion 12 of the display structure 1 is sleeved in the mounting hole, and in a preferred embodiment, the shape of the display portion 12 matches with the mounting hole, so that a user looks beautiful when looking at the front of the display structure 1. Weld through welding muscle 111 welding between 11 and the 2 backs of mounting structure of weld part, weld muscle 111 protrusion weld part 11, weld part 11 need not all welds together with the 2 backs of mounting structure, through welding muscle 111 can, set up certain distance between the two, this distance is weld gap, and unnecessary melten gel can be filled in this weld gap when surpassing to weld, melten gel containing structure 3 includes this weld gap.
Further, the space between the welding rib 111 and the display part 12 and the welding gap have an intersecting space, which is the molten adhesive containing structure 3.
In the above scheme, the space between the welding rib 111 and the display part 12 and the welding gap have an intersecting space, and the intersecting space provides an accommodating space for the redundant molten adhesive, so that the excessive molten adhesive is prevented from overflowing to the position where the front surface of the electric appliance display device can be seen, and the attractiveness of the electric appliance display device is prevented from being affected.
Furthermore, the display part 12 and the welding part 11 are in smooth transition, and a display structure fillet 13 is formed at the boundary.
In the above scheme, the display part 12 and the welding part 11 are in smooth transition, so that the appearance is attractive and the forming is easier.
Further, the edge of the mounting hole close to the welding part 11 is smoothly transited, and a mounting hole fillet 22 is formed at a position corresponding to the display structure fillet 13.
In the above solution, the edge of the mounting hole close to the welding portion 11 is smooth and transited, so that the display structure 1 is beautiful and easy to form, and meanwhile, the display structure is not accidentally stabbed or scratched due to the sharp edge.
Further, the diameter of the mounting hole fillet 22 is larger than or equal to the diameter of the display structure fillet 13.
In the above scheme, the diameter of mounting hole fillet 22 is more than or equal to the diameter that shows structure fillet 13, has increased the volume of melten gel accommodation space, can hold more melten gels, has further prevented overflowing of melten gel.
Further, the cross-sectional area of the end of the welding rib 111 welded to the mounting structure 2 is minimized.
In the above scheme, welding muscle 111 is minimum with mounting structure 2 welded tip cross sectional area, makes things convenient for the welding, prevents that the melten gel from spilling over, has still reduced the area of contact between welding muscle 111 and the mounting structure 2 simultaneously for it spills over the scheduling problem to weld and be difficult to produce the melten gel because the melten gel is many between display structure 1 and the mounting structure 2 more easily.
Further, the cross section of the welding rib 111 in the welding direction is gradually reduced toward the back surface of the mounting structure 2, and preferably, the welding rib 111 includes a first inclined surface 1111 extending from the end portion toward the display portion 12 and a second inclined surface 1112 extending opposite to the first inclined surface 1111.
In the above scheme, welding muscle 111 reduces towards mounting structure 2 back along the cross section of welding direction gradually, and convenient welding reduces the melten gel and spills over the possibility of emergence, has still reduced the area of contact between welding muscle 111 and the mounting structure 2 simultaneously for it spills over the scheduling problem to weld and be difficult to produce the melten gel because the melten gel is many between display structure 1 and the mounting structure 2 more easily. In a preferred embodiment, the cross section of the welding rib 111 in the welding direction is gradually reduced and is formed by two inclined surfaces, namely a first inclined surface 1111 and a second inclined surface 1112, on both sides of the welding rib 111, wherein the first inclined surface 1111 and the second inclined surface 1112 extend in opposite directions, and the first inclined surface 1111 extends from the end of the welding rib 111 towards the display part 12.
Example four
As shown in fig. 1-6, a welding method for an electrical display device includes a display structure 1 and a mounting structure 2, the display structure 1 is ultrasonically welded on the mounting structure 2, the mounting structure 2 includes a mounting hole, the display structure 1 is at least partially sleeved in the mounting hole, and a distance between the mounting hole on the front side of the mounting structure 2 and the display structure 1 is smaller than a distance between the mounting hole on the back side of the mounting structure 2 and the display structure 1.
In the above scheme, display structure 1 and mounting structure 2 of electrical apparatus display device adopt ultrasonic bonding's mode to connect fixedly, can guarantee the fastness of connecting, can guarantee abundant leakproofness again, protect inside electrical components not receive the injury of steam, debris etc.. The mounting structure 2 of the present invention includes a mounting hole display structure 1 at least partially sleeved in the mounting hole, but as shown in fig. 7, since the parting surface is arranged on the back surface of the mounting structure 2, the draft angle is larger and larger from the back surface to the front surface of the mounting structure 2, and the gap between the mounting structure 2 and the display structure 1 seen in appearance is larger, so that the visual effect of the user is poor, and the gap between the mounting structure 2 and the display structure 1 at a part of the positions is smaller due to the draft angle, so that the mounting structure 2 and the display structure 1 are most likely to be adhered in a large area, and further stress concentration is easily generated at the adhered part, and the service life of the display structure 1 is reduced. In this embodiment, the distance between the mounting hole on the front surface of the mounting structure 2 and the display structure 1 is smaller than the distance between the mounting hole on the back surface of the mounting structure 2 and the display structure 1, and the problem of the draft angle is solved by changing the position of the parting surface and the like. In addition, the distance between the positive mounting hole of mounting structure 2 and the display structure 1 is less than the distance between the mounting hole at the back of mounting structure 2 and the display structure 1, has increased the accommodation range of melten gel, prevents that the melten gel from overflowing from the clearance between mounting hole and the display structure 1, has better visual effect.
Further, the side face of the mounting hole corresponding to the display structure 1 includes a first side face 23 and a second side face 24, which have different distances from the display structure 1, the first side face 23 extends to the front of the mounting structure 2, the second side face 24 extends to the back of the mounting structure 2, and the first side face 23 is parallel to the display structure 1.
In the above scheme, the first side surface 23 and the second side surface 24 are arranged, the position of the parting surface is changed, the position of the parting surface is moved from the back position of the mounting structure 2 to the position between the first side surface 23 and the second side surface 24, so that the draft angle is smaller than the original draft angle, and the draft angle of the first side surface 23 can be ignored.
Further, the second side surface 24 is disposed parallel to the display structure 1, and a distance between the first side surface 23 and the display structure 1 is smaller than a distance between the second side surface 24 and the display structure 1.
Further, the area of the second side surface 24 is equal to or larger than the area of the first side surface 23.
In the above scheme, the second side surface 24 is parallel to the display structure 1, so that the forming is simple and convenient, and the accuracy is high. The area of the second side surface 24 is larger than or equal to that of the first side surface 23, so that the parting line of the mold is moved to a position closer to the front surface of the mounting structure 2, the problem of large gap caused by the mold drawing angle is more unobvious, the minimum distance between the mold and the display structure 1 is ensured, and a good visual effect is achieved. Simultaneously, the distance between second side 24 and the display structure 1 is greater than the distance between first side 23 and the display structure 1, has increased the accommodation scope of melten gel, prevents that the melten gel from overflowing from the clearance between mounting hole and the display structure 1, has better visual effect, has also prevented mounting hole and the display structure 1 adhesion that the melten gel that overflows leads to, produces stress concentration in adhesion department, influences the life who shows structure 1.
Further, the display structure 1 includes a display portion 12 and a welding portion 11, the display portion 12 is sleeved in the mounting hole, and a distance between the mounting hole on the front side of the mounting structure 2 and the display portion 12 is smaller than a distance between the mounting hole on the back side of the mounting structure 2 and the display portion 12.
In the above solution, the display portion 12 of the display structure 1 is used for displaying a human-computer interface and other related functions, and the welding portion 11 is used for ultrasonically welding the whole display structure 1 to the mounting structure 2. The distance between the mounting hole on the front surface of the mounting structure 2 and the display part 12 is smaller than the distance between the mounting hole on the back surface of the mounting structure 2 and the display part 12, and the problem of large distance between the mounting hole and the display part 12 is solved by changing the position of a parting surface and the like aiming at the problem of the drawing angle. In addition, still increased the accommodation range of melten gel, prevented that the melten gel from overflowing from the clearance between mounting hole and the display structure 1, had better visual effect.
Further, the side of welding portion 11 protrudes from display portion 12, the terminal convex welding rib 111 that is equipped with towards mounting structure 2 of side of welding portion 11, display portion 12 is through welding rib 111 and mounting structure 2 ultrasonic bonding.
In the above scheme, the welding rib 111 is a part that is melted under the action of ultrasonic waves in the welding process, the welding rib 111 includes a margin for melting at a welding joint, and the display part 12 is ultrasonically welded on the mounting structure 2 through the welding rib 111 of the welding part 11.
Further, the cross-sectional area of the end of the welding rib 111 welded to the mounting structure 2 is the smallest, preferably, the cross-section of the welding rib 111 along the welding direction is gradually reduced toward the back of the mounting structure 2, and more preferably, the welding rib 111 includes a first inclined surface 1111 extending from the end toward the display portion 12 and a second inclined surface 1112 extending opposite to the first inclined surface 1111.
In the above scheme, welding muscle 111 is minimum with mounting structure 2 welded tip cross sectional area, makes things convenient for the welding, prevents that the melten gel from spilling over, has still reduced the area of contact between welding muscle 111 and the mounting structure 2 simultaneously for it spills over the scheduling problem to weld and be difficult to produce the melten gel because the melten gel is many between display structure 1 and the mounting structure 2 more easily. Welding muscle 111 reduces towards mounting structure 2 back along the cross section of welding direction gradually, and convenient welding reduces the melten gel and spills over the possibility that takes place, has still reduced the area of contact between welding muscle 111 and the mounting structure 2 simultaneously for it spills over the scheduling problem to weld and be difficult to produce the melten gel because the melten gel is many between display structure 1 and the mounting structure 2 more easily. In a preferred embodiment, the cross section of the welding rib 111 in the welding direction is gradually reduced and is formed by two inclined surfaces, namely a first inclined surface 1111 and a second inclined surface 1112, on both sides of the welding rib 111, wherein the first inclined surface 1111 and the second inclined surface 1112 extend in opposite directions, and the first inclined surface 1111 extends from the end of the welding rib 111 towards the display part 12.
The diameter of the isolation ball is smaller than that of the balance ball.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A welding method of an electric appliance display device comprises a display structure and a mounting structure, and is characterized in that: the display structure is ultrasonically welded on the mounting structure, and the mounting structure is provided with a positioning structure for preventing the display structure from shifting and/or overturning in the welding process;
the positioning structure comprises a plurality of positioning ribs arranged on the mounting structure, the positioning ribs comprise positioning surfaces, and at least part of the display structure is in clearance fit with the positioning surfaces;
the positioning rib further comprises a guide part for guiding the assembly of the display structure, the guide part comprises a guide surface, and the guide surface is arranged at the end part of the positioning rib.
2. The welding method of the electric appliance display device according to claim 1, wherein: the positioning surface is parallel to the welding direction of the display structure.
3. The welding method of the electric appliance display device according to claim 1, wherein: the positioning surface extends in the welding direction and protrudes out of the back surface of the display structure.
4. The welding method of the electric appliance display device according to claim 1, wherein: the guide surface is a guide inclined surface extending from the end part of the positioning rib to the positioning surface in an inclined way.
5. A method of welding an appliance display device according to any one of claims 1 to 4, wherein: the display structure comprises a display part and a welding part, wherein the welding part comprises a welding rib; the mounting structure comprises a mounting hole, and the display part is sleeved in the mounting hole; the welding part is welded with the mounting structure through a welding rib in an ultrasonic mode, and at least part of the welding part is in clearance fit with the positioning face.
6. The welding method of the electric appliance display device according to any one of claims 5, wherein: the display part is matched with the mounting hole in shape.
7. The welding method of the electric appliance display device according to claim 6, wherein: the rear side of the display structure protrudes to form a welding part, and the welding rib protrudes from the welding part to be arranged towards the back of the mounting structure and is ultrasonically welded with the back of the mounting structure.
8. The welding method of the electric appliance display device according to claim 7, wherein: the welding rib is arranged on the side edge of the welding part, and the cross section area of the end part welded by the welding rib and the mounting structure is the minimum.
9. The welding method of the electric appliance display device according to claim 8, wherein: the cross section of the welding rib along the welding direction is gradually reduced towards the back of the mounting structure.
10. The welding method of the electric appliance display device according to claim 9, wherein: the welding rib comprises a first inclined plane extending from the end part to the display part and a second inclined plane extending opposite to the first inclined plane.
11. The welding method of the electric appliance display device according to claim 10, wherein: the welding part surface comprises a surface parallel to the welding direction, and the surface is in clearance fit with the positioning surface and is in smooth transition with the second inclined surface.
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| CN201711307655.3A CN109905983B (en) | 2017-12-11 | 2017-12-11 | Welding method of electric appliance display device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640099A (en) * | 2002-02-21 | 2005-07-13 | 西门子公司 | Housing or housing part and method for producing a housing or housing part, and tool for carrying out said method |
| CN205467337U (en) * | 2015-12-31 | 2016-08-17 | 成都航天模塑股份有限公司 | Manual ultrasonic wave impales welded structure who welds |
| CN107419481A (en) * | 2017-08-15 | 2017-12-01 | 青岛海尔滚筒洗衣机有限公司 | Display screen component and its welding method |
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2017
- 2017-12-11 CN CN201711307655.3A patent/CN109905983B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640099A (en) * | 2002-02-21 | 2005-07-13 | 西门子公司 | Housing or housing part and method for producing a housing or housing part, and tool for carrying out said method |
| CN205467337U (en) * | 2015-12-31 | 2016-08-17 | 成都航天模塑股份有限公司 | Manual ultrasonic wave impales welded structure who welds |
| CN107419481A (en) * | 2017-08-15 | 2017-12-01 | 青岛海尔滚筒洗衣机有限公司 | Display screen component and its welding method |
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