CN219834551U - Ultrasonic welding type shell and charger - Google Patents

Abstract

The utility model provides an ultrasonic welding type shell and a charger, comprising: the first shell is provided with a first convex frame at one end; the second shell is used for covering one end of the first shell, a second convex frame which is used for being matched with the first convex frame in ultrasonic welding mode to seal a gap between the first shell and the second shell is arranged on the second shell, and the second convex frame is arranged along the periphery of the first convex frame; the first shell is provided with a first ultrasonic groove for the second convex frame to be fused in, and the second shell is provided with a second ultrasonic groove for the first convex frame to be fused in. According to the ultrasonic welding type shell and the charger, the first convex frame and the second convex frame are mutually welded, the generated melt adhesive is filled in the first ultrasonic groove and the second ultrasonic groove, and the tooth-shaped lock catch is formed after welding, so that the welding strength between the first shell and the second shell is effectively improved, and the sealing waterproof performance is enhanced.

Description

Ultrasonic welding type shell and charger

Technical Field

The utility model belongs to the technical field of ultrasonic welding, and particularly relates to an ultrasonic welding type shell and a charger.

Background

The ultrasonic welding technology is to transmit high-frequency vibration waves to the surfaces of two objects to be welded, and under the condition of pressurization, the surfaces of the two objects are rubbed with each other to form fusion between molecular layers.

The charger housing generally includes an upper case and a lower case, which are connected by ultrasonic welding. Specifically, through setting up the ultrasonic sand grip at the upper shell, the inferior valve corresponds to set up the ultrasonic groove, places the ultrasonic sand grip of upper shell in the ultrasonic groove of inferior valve, utilizes the energy of ultrasonic wave to melt the ultrasonic sand grip in the ultrasonic groove, realizes ultrasonic welding. The existing ultrasonic convex strip setting mode comprises the following steps: the mode that a plurality of ultrasonic raised strips are arranged at intervals, namely gaps are reserved among the ultrasonic raised strips, the sealing performance is poor, the waterproof performance is not too closed, and the welding strength is not high; and a square side melting structure is adopted, so that the melt adhesive generated by ultrasonic welding of the ultrasonic raised strips is easy to overflow out of the ultrasonic groove, and the welding strength is low. Therefore, the problem of insufficient welding strength in the current ultrasonic welding method is to be solved.

Disclosure of Invention

The embodiment of the utility model aims to provide an ultrasonic welding type shell and a charger, which are used for solving the technical problem of low welding strength in the prior art.

In order to achieve the above purpose, one of the technical schemes adopted by the utility model is as follows: there is provided an ultrasonic welding type housing comprising:

the first shell is provided with a first convex frame at one end;

the second shell is used for covering one end of the first shell, a second convex frame which is used for being matched with the first convex frame in ultrasonic welding mode to seal a gap between the first shell and the second shell is arranged on the second shell, and the second convex frame is arranged along the periphery of the first convex frame;

the first shell is provided with a first ultrasonic groove for the second convex frame to be fused in, and the second shell is provided with a second ultrasonic groove for the first convex frame to be fused in.

By adopting the technical scheme, the first convex frame and the second convex frame are matched and welded, the generated melt adhesive is filled in the first ultrasonic groove and the second ultrasonic groove, and the first shell and the second shell are ultrasonically welded to form the toothed lock catch, so that the ultrasonic welding area between the first shell and the second shell is increased, and the welding strength between the first cover body and the shell is further enhanced; in addition, the gap between the first shell and the second shell is sealed, so that the sealing waterproof performance is improved.

In one embodiment, a first welding inclined plane is arranged on one side, close to the first ultrasonic groove, of the first convex frame, and the first welding inclined plane is obliquely arranged from one side, close to the first shell, of the first convex frame to one side, far away from the first shell, of the first convex frame in a direction towards the middle of the first convex frame; the second flange is close to one side of second ultrasonic groove is equipped with the second butt fusion inclined plane, the second butt fusion inclined plane is by the second flange be close to one side of second casing to keep away from one side of second casing is the orientation and keeps away from the direction slope of second flange middle part sets up.

Through adopting above-mentioned technical scheme, the existence of first butt fusion inclined plane and second butt fusion inclined plane has increased the butt fusion area between first casing and the second casing, does benefit to and improves welding strength.

In one embodiment, one end of the first shell, which is close to the second shell, is provided with a first step structure for stopping and positioning the second shell, and the first step structure is provided with a first welding surface opposite to the edge of the second shell and a first side surface connected with the periphery of the first welding surface; the first convex frame is positioned at one side of the first welding surface, which is far away from the first side surface, and the first side surface, the first welding surface and the first welding inclined surface enclose the first ultrasonic groove; and/or the number of the groups of groups,

the second shell comprises a first cover plate and a first surrounding frame which is used for being inserted into the first shell in a matching way, and the first surrounding frame is arranged on one side, close to the first shell, of the first cover plate; the second convex frame surrounds the first surrounding frame, and the second ultrasonic groove is formed between the first surrounding frame and the second convex frame.

By adopting the technical scheme, the welding part of the first shell and the second shell is positioned in the first shell, and only the first shell is displayed from the outside, so that the aesthetic degree is improved, and the sealing performance and the waterproof performance of the shell are improved; in addition, the second shell is connected with the first shell in a clamping way through the first surrounding frame, and meanwhile, the second shell is welded with the first protruding frame and the first ultrasonic groove on the first shell through the second ultrasonic groove and the second protruding frame on the first cover plate, so that the connection strength of the first shell and the second shell is further improved; the first surrounding frame can improve holistic leakproofness and waterproof nature, can also prevent in addition that the ultrasonic welding back melt adhesive from to the inside infiltration of first casing.

In one embodiment, the cross section of the first and second rims is triangular or trapezoidal.

By adopting the technical scheme, the welding efficiency is improved, and the raw material cost is saved compared with the original square ultrasonic line.

In one embodiment, the end face of the first housing adjacent to the second housing and the face of the second housing remote from the first housing are flush.

By adopting the technical scheme, after the first shell and the second shell are ultrasonically welded, the end face of the first shell, which is close to the second shell, is flush with the surface of the second shell, which is far away from the first shell, so that the first shell can avoid forming a sanitary dead angle, and daily cleaning is facilitated; secondly, can also make the whole level and smooth that keeps of charger shell, reach the effect that promotes aesthetic measure.

In one embodiment, an opening for inserting the second housing part is provided at an end of the first housing close to the second housing, and the first bezel is provided around the opening.

By adopting the technical scheme, the sealing performance and the waterproof performance of the first shell and the second shell after ultrasonic welding can be improved.

In one embodiment, the ultrasonic welding type shell further comprises a third shell for covering the other end of the first shell, a third convex frame is arranged at the other end of the first shell, a fourth convex frame for being matched with the third convex frame in ultrasonic welding to seal a gap between the first shell and the third shell is arranged on the third shell, and the fourth convex frame is arranged along the periphery of the third convex frame;

the first shell is provided with a third ultrasonic groove for the fourth convex frame to be fused in, and the third shell is provided with a fourth ultrasonic groove for the third convex frame to be fused in.

By adopting the technical scheme, the whole ultrasonic welding type shell is divided into the first cover body, the shell body and the second cover body, so that the shell structure is clearer in hierarchy, convenient to process and assemble, relatively airtight protection space is formed between the three parts, and solid physical protection is provided for the interior of the shell; through the butt fusion cooperation of third flange and fourth flange to and the molten gel that produces is filled in third ultrasonic tank and fourth ultrasonic tank, forms tooth form hasp between third casing and the first casing, has increased the supersound butt fusion area between third casing and the first casing, and then has strengthened the butt fusion intensity between first casing and the second casing.

In one embodiment, a third welding inclined plane is arranged on one side, close to the third ultrasonic groove, of the third convex frame, and the third welding inclined plane is obliquely arranged from one side, close to the first shell, of the third convex frame to one side, far away from the first shell, of the third convex frame in a direction towards the middle of the third convex frame; one side of the fourth convex frame, which is close to the fourth ultrasonic groove, is provided with a fourth welding inclined plane, and the fourth welding inclined plane is obliquely arranged from one side of the fourth convex frame, which is close to the third shell, to one side, which is far away from the third shell, in a direction away from the middle part of the fourth convex frame.

By adopting the technical scheme, the welding efficiency is improved, the welding area is increased, and the welding strength is further improved.

In one embodiment, one end of the first shell, which is close to the third shell, is provided with a second step structure for stopping and positioning the third shell, and the second step structure is provided with a third welding surface opposite to the edge of the third shell and a second side surface connected with the periphery of the third welding surface; the third convex frame is positioned at one side of the third welding surface far away from the second side surface, and the second side surface, the third welding surface and the third welding inclined surface enclose the third ultrasonic groove; and/or the number of the groups of groups,

the third shell comprises a second cover plate and a second surrounding frame which is used for being inserted into the first shell in a matching way, and the second surrounding frame is arranged on one side, close to the first shell, of the second cover plate; the third convex frame surrounds the second surrounding frame, and the fourth ultrasonic groove is formed between the second surrounding frame and the fourth convex frame.

Through adopting above-mentioned technical scheme, the same between first casing and the second casing, when forming tooth profile's hasp between third casing and the first casing, the second encloses the frame joint in first casing, sets up like this and can further improve the joint strength between third casing and the first casing.

In order to achieve the above purpose, the second technical scheme adopted by the utility model is as follows: the charger comprises a containing shell, a circuit board arranged in the containing shell and pins with one ends electrically connected with the circuit board, wherein the containing shell is formed by ultrasonic welding of the ultrasonic welding type shell.

By adopting the technical scheme, the charger provided by the utility model has the advantages of high tightness, good waterproof performance and convenience in use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an ultrasonic welding type housing without ultrasonic welding according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the ultrasonically welded housing of FIG. 1;

FIG. 3 is an exploded schematic view of the ultrasonically welded housing of FIG. 1;

FIG. 4 is a schematic explosion diagram of an ultrasonic welding type housing according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view taken along the direction A-A in FIG. 4;

FIG. 6 is an enlarged view at C in FIG. 5;

FIG. 7 is an enlarged view of FIG. 5 at D;

fig. 8 is a schematic structural diagram of a charger according to an embodiment of the present utility model;

fig. 9 is a cross-sectional view taken along the direction B-B in fig. 8.

Wherein, each reference sign in the figure:

10. a first housing; 11. a first flange; 111. a first welding ramp; 12. a first ultrasonic tank; 13. a first step structure; 131. a first welding surface; 132. a first side; 14. a third flange; 141. a third welding slope; 15. a third ultrasonic tank; 16. a second step structure; 161. a second welding surface; 162. a second side; 17. an opening; 18. a mounting cavity;

20. a second housing; 21. a second convex frame; 211. a second welding bevel; 22. a second ultrasonic tank; 23. a first cover plate; 231. a mounting hole; 24. a first enclosure;

30. a third housing; 31. a fourth flange; 311. a fourth welding slope; 32. a fourth ultrasonic tank; 33. a second cover plate; 331. a wiring port; 34. a second enclosure;

40. pins;

50. and a receiving case.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1, 5 and 6, the ultrasonic welding type housing provided in the embodiment of the utility model includes a first housing 10 and a second housing 20, wherein a first protruding frame 11 is disposed at one end of the first housing 10; the second casing 20 is used for covering one end of the first casing 10, and the second casing 20 is provided with a second protruding frame 21; the second flange 21 is ultrasonically welded to the first flange 11 to seal the gap between the first and second housings 10 and 20; the first casing 10 is provided with a first ultrasonic groove 12, the second casing 20 is provided with a second ultrasonic groove 22, the first ultrasonic groove 12 is used for being fused into the second convex frame 21, and the second ultrasonic groove 22 is used for being fused into the first convex frame 11.

By providing the first frame 11 on the first housing 10 and providing the second frame 21 on the second housing 20, the first frame 11 and the second frame 21 are fusion-fitted to seal the gap between the first housing 10 and the second housing 20; firstly, the second ultrasonic groove 22 is filled with the melt adhesive generated by the ultrasonic welding of the first convex frame 11, and the first ultrasonic groove 12 is filled with the melt adhesive generated by the ultrasonic welding of the second convex frame 21, so that the sealing and waterproof performances are further improved; the second welding forms a tooth-shaped welding structure after welding, and the welding strength between the first casing 10 and the second casing 20 is enhanced.

In one embodiment of the present utility model, referring to fig. 5 and 6 together, the first flange 11 is provided with a first welding bevel 111, the first welding bevel 111 is located on one side of the first flange 11 close to the first ultrasonic groove 12, and the first welding bevel 111 is obliquely arranged from one side of the first flange 11 close to the first housing 10 to one side far from the first housing 10 in a direction towards a middle of the first flange 11; the second convex frame 21 is provided with a second welding inclined plane 211, the second welding inclined plane 211 is positioned on one side of the second convex frame 21 close to the second ultrasonic groove 22, and the second welding inclined plane 211 is obliquely arranged from one side of the second convex frame 21 close to the second shell 20 to one side far away from the second shell 20 in a direction towards the middle part far away from the second convex frame 21. The arrangement is such that the welding area between the first and second beads 11 and 21 is increased, and the welding strength is improved; leading the melted first convex frame to enter a first ultrasonic groove, and leading the melted second convex frame to enter a second ultrasonic groove to prevent glue overflow; in addition, the inclined plane reduces resistance in the welding process, so that the welding efficiency is improved.

In one embodiment of the present utility model, referring to fig. 3, 5 and 6, the first housing 10 is provided with a first step structure 13, the first step structure 13 is located at one end of the first housing 10 near the second housing 20, and the first step structure 13 is used for stopping and positioning the second housing 20; the first step structure 13 has a first welding surface 131 and a first side surface 132, the first welding surface 131 is opposite to the edge of the second casing 20, and the first side surface 132 is connected with the periphery of the first welding surface 131; the first flange 11 is located at a side of the first welding surface 131 away from the first side 132, and the first side 132, the first welding surface 131 and the first welding inclined surface 111 enclose the first ultrasonic groove 12. The first step structure 13 enables the connection part of the first casing 10 and the second casing 20 to be located inside the first casing 10, so that the sealing performance and the waterproof performance between the first casing 10 and the second casing 20 are improved, and in addition, the overall attractiveness is also improved.

In one embodiment of the present utility model, referring to fig. 3 and 4, the second housing 20 includes a first cover plate 23 and a first surrounding frame 24, and the first surrounding frame 24 is used for being cooperatively inserted into the first housing 10; the first enclosure frame 24 is arranged on one side of the first cover plate 23 close to the first shell 10; the second frame 21 is disposed around the first frame 24, and the second ultrasonic groove 22 is formed between the first frame 24 and the second frame 21. The first surrounding frame 24 makes the positioning of the second casing 20 and the first casing 10 more accurate, and in addition, one side of the second ultrasonic groove 22 is blocked, so that the molten rubber is prevented from entering the inside of the first casing 10, and the sealing performance and the waterproof performance are improved.

In another embodiment of the present utility model, referring to fig. 3 to 6, the first housing 10 is provided with a first step structure 13, the first step structure 13 is located at one end of the first housing 10 near the second housing 20, and the first step structure 13 is used for stopping and positioning the second housing 20; the first step structure 13 has a first welding surface 131 and a first side surface 132, the first welding surface 131 is opposite to the edge of the second casing 20, and the first side surface 132 is connected with the periphery of the first welding surface 131; the first flange 11 is located at one side of the first welding surface 131 away from the first side surface 132, and the first side surface 132, the first welding surface 131 and the first welding inclined surface 111 enclose a first ultrasonic groove 12; the second casing 20 includes a first cover plate 23 and a first enclosure frame 24, and the first enclosure frame 24 is used for being inserted into the first casing 10 in a matching manner; the first enclosure frame 24 is arranged on one side of the first cover plate 23 close to the first shell 10; the second frame 21 is disposed around the first frame 24, and the second ultrasonic groove 22 is formed between the first frame 24 and the second frame 21. The junction that makes between first casing 10 and the second casing 20 is located inside first casing 10 like this, has promoted the outside aesthetic property of first casing 10, and first step structure 13 on the first casing 10 can make things convenient for second casing 20 and first casing 10 joint to aim at, makes things convenient for subsequent ultrasonic welding, and first surrounding frame 24 has blockked the melt adhesive that ultrasonic welding produced and has got into inside first casing 10, has further sealed the clearance between first casing 10 and the second casing 20, has promoted leakproofness and waterproof performance.

Optionally, referring to fig. 3 to 5, the first enclosure frame 24 is a rectangular frame, four corners of the rectangular frame are chamfered, one end of the first enclosure frame 24 is disposed on one side of the first cover plate 23 near the first housing 10, and the other end of the first enclosure frame 24 extends toward a direction near the first housing 10. This can enclose the first ultrasonic groove 12, improve the sealing property, and prevent the molten rubber generated by melting the first and second frames at the time of ultrasonic welding from penetrating into the first casing 10.

In one embodiment of the present utility model, referring to fig. 4 to 6, the cross sections of the first and second convex frames 11 and 21 are triangular, and in other embodiments, the cross sections of the first and second convex frames 11 and 21 may be trapezoidal. Wherein the cross section refers to a section taken from a direction perpendicular to both the first welding face 131 and the first side face 132. The ultrasonic welding is more convenient to carry out, the welding efficiency is improved, and the raw material cost is saved.

In an embodiment of the present utility model, referring to fig. 1 to 4, the end surface of the first housing 10 close to the second housing 20 and the surface of the second housing 20 far from the first housing 10 are flush, so that the whole second housing 20 is located inside the first housing 10, so that the whole second housing is neat and smooth, and a sanitary dead angle is avoided, thereby facilitating daily cleaning.

In one embodiment of the present utility model, referring to fig. 3 and 4, an opening 17 is formed at an end of the first housing 10 adjacent to the second housing 20, and the opening 17 is used for inserting the second housing part; the first bezel 11 is disposed around the opening 17. This arrangement facilitates improved sealing and waterproofing of the housing.

In one embodiment of the present utility model, referring to fig. 2 to 7, the ultrasonically welded housing further includes a third housing 30, the third housing 30 being configured to cover an end of the first housing 10 remote from the second housing 20; the end of the first shell 10 far away from the second shell 20 is provided with a third convex frame 14, the third shell 30 is provided with a fourth convex frame 31, the third convex frame 14 and the fourth convex frame 31 are in fusion fit to seal a gap between the third shell 30 and the first shell 10, and the fourth convex frame 31 is arranged along the periphery of the third convex frame 14; the first shell 10 is further provided with a third ultrasonic groove 15, the third ultrasonic groove 15 is used for filling the molten rubber generated by ultrasonic welding of the fourth convex frame 31, the third shell 30 is further provided with a fourth ultrasonic groove 32, and the fourth ultrasonic groove 32 is used for filling the molten rubber generated by ultrasonic welding of the third convex frame 14. This arrangement is similar to the arrangement between the first casing 10 and the second casing 20, and after ultrasonic welding between the third casing 30 and the first casing 10, a tooth-shaped welding structure is formed, which increases the welding strength between the third casing 30 and the first casing 10.

In one embodiment of the present utility model, referring to fig. 4, 5 and 7, the third flange 14 has a third welding inclined surface 141, the third welding inclined surface 141 is located on one side of the third flange 14 close to the third ultrasonic groove 15, and the third welding inclined surface 141 is inclined from one side of the third flange 14 close to the first housing 10 to one side far from the first housing 10 in a direction towards a middle of the third flange 14; the fourth flange 31 has a fourth welding slope 311, and the fourth welding slope 311 is located on a side of the fourth flange 31 close to the fourth ultrasonic groove 32, and the fourth welding slope 311 is inclined from a side of the fourth flange 31 close to the third housing 30 to a side far from the third housing 30 in a direction far from the middle of the fourth flange 31. The arrangement is such that the welding area between the third flange 14 and the fourth flange 31 is increased, and the welding strength is improved; in addition, the inclined plane reduces resistance in the welding process, so that the welding efficiency is improved.

In an embodiment of the present utility model, referring to fig. 3, 5 and 7, the first housing 10 is further provided with a second step structure 16, the second step structure 16 is located at one end of the first housing 10 near the third housing 30, and the second step structure 16 is used for positioning the third housing 30 in a stopping manner; the second step structure 16 has a second welding surface 161 and a second side surface 162, the second welding surface 161 is opposite to the edge of the third housing 30, and the second side surface 162 is connected to the outer periphery of the second welding surface 161; the third flange 14 is located at a side of the second welding surface 161 away from the second side surface 162, and the second side surface 162, the second welding surface 161, and the third welding slope 141 form the third ultrasonic groove 15. The second step structure 16 enables the connection between the first casing 10 and the third casing 30 to be located inside the first casing 10, thereby improving the overall aesthetic property and sealing performance and waterproof performance between the first casing 10 and the third casing 30.

In one embodiment of the present utility model, referring to fig. 2 to 4, the third housing 30 includes a second cover 33 and a second surrounding frame 34, and the second surrounding frame 34 is used for being cooperatively inserted into the first housing 10; the second enclosure frame 34 is arranged on one side of the second cover plate 33 close to the first shell 10; the fourth flange 31 is disposed around the second peripheral frame 34, and the fourth ultrasonic groove 32 is formed between the second peripheral frame 34 and the fourth flange 31. The existence of the second surrounding frame 34 makes the positioning of the third casing 30 and the first casing 10 more accurate, and in addition, one side of the fourth ultrasonic groove 32 is blocked, so that the molten glue is prevented from entering the inside of the first casing 10, and the sealing performance and the waterproof performance are improved.

In another embodiment of the present utility model, referring to fig. 3 to 7, the first housing 10 is further provided with a second step structure 16, the second step structure 16 is located at one end of the first housing 10 near the third housing 30, and the second step structure 16 is used for stopping and positioning the third housing 30; the second step structure 16 has a second welding surface 161 and a second side surface 162, the second welding surface 161 is opposite to the edge of the third housing 30, and the second side surface 162 is connected to the outer periphery of the second welding surface 161; the third flange 14 is located at a side of the second welding surface 161 away from the second side surface 162, and the second side surface 162, the second welding surface 161 and the third welding inclined surface 141 form a third ultrasonic groove 15; the third casing 30 includes a second cover plate 33 and a second surrounding frame 34, and the second surrounding frame 34 is disposed on one side of the second cover plate 33 close to the first casing 10; the fourth ultrasonic groove 32 is positioned on one side of the second cover plate 33 close to the first housing 10; the fourth flange 31 is located at a side of the fourth ultrasonic groove 32 far from the middle of the second cover plate 33, and the second surrounding frame 34 is located at a side of the fourth ultrasonic groove 32 near to the middle of the second cover plate 33. This arrangement improves both the overall aesthetic properties and the sealability and waterproof properties between the first housing 10 and the third housing 30.

Optionally, the first casing 10 is a substantially hollow rectangular cylinder, and the connection parts of four sides of the first casing 10 are chamfered, so that the whole first casing 10 is in smooth transition, thereby improving the appearance and facilitating the taking of a user.

In one embodiment of the present utility model, referring to fig. 4 to 7, the cross section of the first flange 11 is triangular, and the base of the triangle (the side near the first housing 10) is 0.1mm-1.0mm long and 0.1-1.0mm high; the first ultrasonic groove 12 sags 0.1mm-0.5mm and the groove width is 0.1mm-1.0mm. The second flange 21 is arranged identically to the first flange 11, and the second ultrasonic groove 22 is arranged identically to the first ultrasonic groove 12; the first convex frame 11 and the second convex frame 21 interfere at the root of the triangle by about 0.10mm-0.14mm, the first welding inclined plane 111 of the first convex frame 11 and the second welding inclined plane 211 of the second convex frame 21 are welded with each other, the first convex frame 11 is partially buckled in the second ultrasonic groove 22, the second convex frame 21 is partially buckled in the first ultrasonic groove 12, and a tooth-shaped welding structure is formed by ultrasonic welding, so that the ultrasonic welding area is effectively increased, and the welding strength between the first shell 10 and the second shell 20 is further improved. The third and fourth beads 14 and 31 are provided as the first beads 11, and the third and fourth ultrasonic grooves 15 and 32 are provided as the first ultrasonic grooves 12. Through experimental comparison, the welding strength of the ultrasonic welding type shell provided by the utility model is improved by more than 30%, and the ultrasonic efficiency is improved by more than 300 pieces/hour. Specifically, the side length of the first flange 11 on the first housing 10 is 0.4mm, the height of the first flange 11 is 0.4mm, and the first ultrasonic groove 12 is sunk by 0.2mm and the groove width is 0.4mm. Other values are also possible in other embodiments.

The embodiment of the present utility model further provides a charger, referring to fig. 1, 2, 8 and 9, including a housing shell 50, a circuit board (not shown) and pins 40, where the housing shell 50 is formed by ultrasonic welding the above-mentioned ultrasonic welding type housing; the circuit board is mounted in the housing case 50, one end of the pin 40 is electrically connected to the circuit board, and the other end of the pin 40 penetrates the second housing 20 and extends away from the first housing 10. The charger shell is attractive in appearance and high in welding strength.

Optionally, the first cover plate 23 is provided with a mounting hole 231, the mounting hole 231 is used for the pin 40 to pass through, the first housing 10 is formed with a mounting cavity 18, and the second cover plate 33 is provided with a wiring port 331; the circuit board is mounted within the mounting cavity 18. The charger provided by the utility model has the advantages of good sealing performance, good waterproof performance and convenience in use.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. An ultrasonically welded housing, comprising:

the first shell is provided with a first convex frame at one end;

the second shell is used for covering one end of the first shell, a second convex frame which is used for being matched with the first convex frame in ultrasonic welding mode to seal a gap between the first shell and the second shell is arranged on the second shell, and the second convex frame is arranged along the periphery of the first convex frame;

the first shell is provided with a first ultrasonic groove for the second convex frame to be fused in, and the second shell is provided with a second ultrasonic groove for the first convex frame to be fused in.

2. The ultrasonic welding type housing according to claim 1, wherein a first welding inclined surface is arranged on one side of the first protruding frame close to the first ultrasonic groove, and the first welding inclined surface is obliquely arranged from one side of the first protruding frame close to the first shell to one side far from the first shell in a direction approaching to the middle of the first protruding frame; the second flange is close to one side of second ultrasonic groove is equipped with the second butt fusion inclined plane, the second butt fusion inclined plane is by the second flange be close to one side of second casing to keep away from one side of second casing is the orientation and keeps away from the direction slope of second flange middle part sets up.

3. The ultrasonically welded housing of claim 2, wherein the end of the first housing adjacent the second housing has a first step structure for stopping and positioning the second housing, the first step structure having a first fused face directly opposite the edge of the second housing and a first side face connected to the periphery of the first fused face; the first convex frame is positioned at one side of the first welding surface, which is far away from the first side surface, and the first side surface, the first welding surface and the first welding inclined surface enclose the first ultrasonic groove; and/or the number of the groups of groups,

the second shell comprises a first cover plate and a first surrounding frame which is used for being inserted into the first shell in a matching way, and the first surrounding frame is arranged on one side, close to the first shell, of the first cover plate; the second convex frame surrounds the first surrounding frame, and the second ultrasonic groove is formed between the first surrounding frame and the second convex frame.

4. The ultrasonically welded housing of claim 1, wherein the first and second rims are triangular or trapezoidal in cross-section.

5. The ultrasonically welded housing of claim 1, wherein an end face of the first housing adjacent the second housing and an end face of the second housing remote from the first housing are flush.

6. The ultrasonically welded housing of claim 1, wherein an end of the first housing adjacent the second housing defines an opening for insertion of the second housing portion, the first bezel being disposed about the opening.

7. The ultrasonically welded housing of any one of claims 1-6, further comprising a third housing for covering the other end of the first housing, the other end of the first housing being provided with a third flange, the third housing being provided with a fourth flange for cooperating with the third flange for ultrasonic welding to seal a gap between the first housing and the third housing, the fourth flange being disposed along an outer periphery of the third flange;

the first shell is provided with a third ultrasonic groove for the fourth convex frame to be fused in, and the third shell is provided with a fourth ultrasonic groove for the third convex frame to be fused in.

8. The ultrasonic welding type housing according to claim 7, wherein a third welding inclined surface is arranged on one side of the third protruding frame close to the third ultrasonic groove, and the third welding inclined surface is obliquely arranged from one side of the third protruding frame close to the first shell to one side far from the first shell in a direction approaching to the middle of the third protruding frame; one side of the fourth convex frame, which is close to the fourth ultrasonic groove, is provided with a fourth welding inclined plane, and the fourth welding inclined plane is obliquely arranged from one side of the fourth convex frame, which is close to the third shell, to one side, which is far away from the third shell, in a direction away from the middle part of the fourth convex frame.

9. The ultrasonically welded housing of claim 8, wherein the first housing has a second step structure at an end thereof adjacent to the third housing for stopping and positioning the third housing, the second step structure having a third fused face opposite the third housing edge and a second side face connected to the outer periphery of the third fused face; the third convex frame is positioned at one side of the third welding surface far away from the second side surface, and the second side surface, the third welding surface and the third welding inclined surface enclose the third ultrasonic groove; and/or the number of the groups of groups,

the third shell comprises a second cover plate and a second surrounding frame which is used for being inserted into the first shell in a matching way, and the second surrounding frame is arranged on one side, close to the first shell, of the second cover plate; the third convex frame surrounds the second surrounding frame, and the fourth ultrasonic groove is formed between the second surrounding frame and the fourth convex frame.

10. A charger comprising a housing, a circuit board mounted in the housing, and pins having one end electrically connected to the circuit board, wherein the housing is formed by ultrasonic welding of the ultrasonic welding type housing according to any one of claims 1 to 9.