Plastic sound box shell with double ultrasonic lines
By adopting a dual ultrasonic line design in the plastic speaker shell, the welding area is increased, and the deformation and noise problems of the plastic speaker shell during use is solved, and the strength and yield of the product are improved.
Patent Information
- Application Number
- CN202422311535.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing plastic speaker shells are prone to deform during use and produce noise due to vibration, so the product yield is low.
The plastic speaker shell design with double ultrasonic wires is adopted. By setting a plurality of first and second plastic columns on the plastic lower cover and upper cover, and ultrasonic welding is performed therebetween, the welding area is increased to increase the fixed strength and avoid deformation and noise.
It improves the strength and welding yield of the plastic speaker shell, reduces deformation and noise caused by vibration, and improves product yield.
Smart Images
Figure CN223142059U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of speaker shells, and particularly relates to a plastic speaker shell with double ultrasonic lines. Background Art
[0002] A plastic speaker shell generally includes a plastic lower cover and a plastic upper cover covering the plastic lower cover. The edges of the plastic upper cover and the plastic lower cover are sealed and fixed by ultrasonic welding. Positive and negative wires are arranged between the plastic upper cover and the plastic lower cover to connect to a speaker, which is also beneficial to protecting the internal structure of the speaker.
[0003] For the existing plastic speaker shell, only the edges of the plastic upper cover and the plastic lower cover are sealed and fixed. Due to the gap between the plastic upper cover and the plastic lower cover, deformation is likely to occur during use. If support columns are added between the plastic upper cover and the plastic lower cover, noise is likely to be generated due to the collision between the support columns and the plastic upper cover / plastic lower cover during vibration, resulting in a low product yield. Summary of the Invention
[0004] In order to overcome the defects and deficiencies in the prior art, the purpose of the utility model is to provide a plastic speaker shell with double ultrasonic lines.
[0005] The purpose of the utility model is achieved by the following technical solutions: A plastic speaker shell with double ultrasonic lines includes a plastic lower cover and a plastic upper cover covering the plastic lower cover. A plurality of first plastic columns are protruded from the top surface of the plastic lower cover at intervals, and a plurality of second plastic columns are protruded from the bottom surface of the plastic upper cover and are respectively matched with the first plastic columns one by one. An annular step is formed on the outer periphery of the first plastic column, and a first welding groove is formed in the middle of the second plastic column. A first ultrasonic line is protruded from the top of the first plastic column and abuts against the top of the first welding groove, and a second ultrasonic line is protruded from the top of the annular step and abuts against the bottom of the second plastic column. The first ultrasonic line and the first welding groove, as well as the second ultrasonic line and the second plastic column, are in ultrasonic welding cooperation.
[0006] Preferably, a first connecting part is protruded from the top side edge of the plastic lower cover, and a second connecting part is protruded from the bottom side edge of the plastic upper cover. A protruding part is protruded from the first connecting part, and a second welding groove is formed in the second connecting part and is in clamping cooperation with the protruding part. A first guiding welding line is protruded from the protruding part and abuts against the top of the second welding groove, and the first guiding welding line and the second welding groove are in ultrasonic welding cooperation.
[0007] Preferably, a positioning hole is formed in the plastic lower cover, and a positioning column is protruded from the bottom surface of the plastic upper cover and is in positioning cooperation with the positioning hole.
[0008] Preferably, a speaker assembly groove is formed on the top surface of the plastic upper cover. A first speaker relief through hole is formed in the middle of the speaker assembly groove. A speaker relief groove is formed on the top surface of the plastic lower cover. A second speaker relief through hole is formed in the middle of the speaker relief groove.
[0009] Preferably, a positive wire guiding and limiting portion and a negative wire guiding and limiting portion protrude from the bottom surface of the plastic upper cover. Guide grooves are formed in both the positive wire guiding and limiting portion and the negative wire guiding and limiting portion.
[0010] The beneficial effects of the present utility model are as follows: The plastic speaker housing with double ultrasonic wires of the present utility model adopts a plastic lower cover and a plastic upper cover covering the plastic lower cover. A plurality of first plastic posts spaced apart are protruded from the top surface of the plastic lower cover. A plurality of second plastic posts respectively cooperating with the first plastic posts are protruded from the bottom surface of the plastic upper cover. An annular step is formed on the outer periphery of the first plastic post. A first welding groove is formed in the middle of the second plastic post. A first ultrasonic wire abutting against the top of the first welding groove is protruded from the top of the first plastic post. A second ultrasonic wire abutting against the bottom of the second plastic post is protruded from the top of the annular step. The first ultrasonic wire and the first welding groove, and the second ultrasonic wire and the second plastic post are ultrasonically welded and cooperated with each other, so as to tightly fix the first plastic post and the second plastic post. Moreover, the first ultrasonic wire and the second ultrasonic wire act together to increase the ultrasonic welding area, effectively improve the welding yield between the first plastic post and the second plastic post, improve the strength of the plastic speaker housing, avoid the plastic speaker housing being easily deformed during use, and also improve the noise generated by the collision between the first plastic post and the second plastic post due to vibration. Overall, it is beneficial to improve the product yield. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic structural diagram of the present utility model;
[0012] Figure 2 is an exploded schematic diagram of the present utility model;
[0013] Figure 3 is Figure 2 an enlarged schematic diagram of A in
[0014] Figure 4 is a schematic structural diagram of another perspective of the present utility model;
[0015] Figure 5 is Figure 4 a sectional view taken along B-B in
[0016] Figure 6 is Figure 5 an enlarged schematic diagram of A in
[0017] Figure 7 is a schematic structural diagram of the plastic upper cover of the present utility model.
[0018] The reference numerals are: 1, plastic lower cover; 2, plastic upper cover; 3, first plastic column; 4, second plastic column; 5, annular step; 6, first welding groove; 7, first ultrasonic wire; 8, second ultrasonic wire; 9, first connecting portion; 10, second connecting portion; 11, convex portion; 12, second welding groove; 13, first welding guide wire; 14, positioning hole; 15, positioning post; 16, speaker assembly groove; 17, first speaker relief through hole; 18, speaker relief groove; 19, second speaker relief through hole; 20, positive wire guiding and limiting portion; 21, negative wire guiding and limiting portion; 22, guiding groove. Detailed implementation manners
[0019] For the convenience of those skilled in the art to understand, the following further describes the present utility model in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manners does not limit the present utility model.
[0020] As Figure 1-7 shown, a plastic speaker housing with double ultrasonic wires includes a plastic lower cover 1 and a plastic upper cover 2 covering the plastic lower cover 1. A plurality of first plastic columns 3 spaced apart are protruded from the top surface of the plastic lower cover 1. A plurality of second plastic columns 4 that are respectively matched with the first plastic columns 3 are protruded from the bottom surface of the plastic upper cover 2. An annular step 5 is formed on the outer periphery of the first plastic column 3. A first welding groove 6 is formed in the middle of the second plastic column 4. A first ultrasonic wire 7 that abuts against the top of the first welding groove 6 is protruded from the top of the first plastic column 3. A second ultrasonic wire 8 that abuts against the bottom of the second plastic column 4 is protruded from the top of the annular step 5. The first ultrasonic wire 7 and the first welding groove 6, and the second ultrasonic wire 8 and the second plastic column 4 are all ultrasonically welded and matched.
[0021] The plastic speaker housing with double ultrasonic lines comprises a plastic lower cover 1 and a plastic upper cover 2 covering the plastic lower cover 1. A plurality of first plastic columns 3 are protruded from the top surface of the plastic lower cover 1 at intervals, and a plurality of second plastic columns 4 are protruded from the bottom surface of the plastic upper cover 2 and are respectively matched with the first plastic columns 3 one by one. An annular step 5 is formed on the outer periphery of the first plastic column 3, and a first welding groove 6 is formed in the middle of the second plastic column 4. A first ultrasonic line 7 is protruded from the top of the first plastic column 3 and abuts against the top of the first welding groove 6, and a second ultrasonic line 8 is protruded from the top of the annular step 5 and abuts against the bottom of the second plastic column 4. The first ultrasonic line 7 and the first welding groove 6, and the second ultrasonic line 8 and the second plastic column 4 are ultrasonically welded and matched to tightly fix the first plastic column 3 and the second plastic column 4. The combined action of the first ultrasonic line 7 and the second ultrasonic line 8 increases the ultrasonic welding area, effectively improves the welding yield between the first plastic column 3 and the second plastic column 4, improves the strength of the plastic speaker housing, prevents the plastic speaker housing from being easily deformed during use, and can also reduce the noise generated by the collision between the first plastic column 3 and the second plastic column 4 due to vibration. Overall, it is beneficial to improve the product yield. In this embodiment, the number of the first plastic columns 3 is 5.
[0022] Furthermore, a first connecting portion 9 is protruded from the top side edge of the plastic lower cover 1, a second connecting portion 10 is protruded from the bottom side edge of the plastic upper cover 2, a protruding portion 11 is protruded from the first connecting portion 9, a second welding groove 12 is formed in the second connecting portion 10 and is engaged with the protruding portion 11 in a snap-fit manner, a first guiding welding line 13 is protruded from the protruding portion 11 and abuts against the top of the second welding groove 12, and the first guiding welding line 13 and the second welding groove 12 are ultrasonically welded and matched.
[0023] Furthermore, a positioning hole 14 is formed in the plastic lower cover 1, and a positioning post 15 is protruded from the bottom surface of the plastic upper cover 2 and is positioned and matched with the positioning hole 14, which is beneficial for quickly positioning the plastic upper cover 2 and the plastic lower cover 1 during assembly and improving the assembly efficiency. In this embodiment, the number of the positioning holes 14 is 4.
[0024] Furthermore, a speaker assembly groove 16 is formed on the top surface of the plastic upper cover 2, a first speaker through-hole 17 is formed in the middle of the speaker assembly groove 16, a speaker through-slot 18 is formed on the top surface of the plastic lower cover 1, and a second speaker through-hole 19 is formed in the middle of the speaker through-slot 18, providing an assembly space for the speaker. During actual assembly, the speaker is assembled in the speaker assembly groove 16 and extends into the first speaker through-hole 17, the speaker through-slot 18 and the second speaker through-hole 19, which is beneficial for improving the space utilization rate.
[0025] Further, a positive wire guiding and limiting portion 20 and a negative wire guiding and limiting portion 21 protrude from the bottom surface of the plastic upper cover 2. The positive wire guiding and limiting portion 20 and the negative wire guiding and limiting portion 21 are both provided with guiding grooves 22. During actual assembly, the positive wire is connected to the positive position of the speaker along the guiding groove 22 of the positive wire guiding and limiting portion 20, and the negative wire is connected to the negative position of the speaker along the guiding groove 22 of the negative wire guiding and limiting portion 21, which is convenient for limiting and regularizing the positive and negative wires.
[0026] The above embodiments are the preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.
Claims
1. A plastic speaker housing with double ultrasonic lines, comprising a plastic lower cover and a plastic upper cover covering the plastic lower cover, characterized in that: The top surface of the plastic lower cover protrudes with a plurality of first plastic columns arranged at intervals. The bottom surface of the plastic upper cover protrudes with a plurality of second plastic columns that are respectively and cooperatively matched with the first plastic columns. An annular step is formed on the outer periphery of the first plastic column. A first welding groove is formed in the middle of the second plastic column. A first ultrasonic wire that abuts against the top of the first welding groove protrudes from the top of the first plastic column. A second ultrasonic wire that abuts against the bottom of the second plastic column protrudes from the top of the annular step. The first ultrasonic wire and the first welding groove, and the second ultrasonic wire and the second plastic column are all ultrasonically welded and matched.
2. The plastic speaker housing with double ultrasonic lines according to claim 1, characterized in that: A first connecting portion protrudes from the top side edge of the plastic lower cover. A second connecting portion protrudes from the bottom side edge of the plastic upper cover. A protruding portion protrudes from the first connecting portion. A second welding groove that is clamped and matched with the protruding portion is formed in the second connecting portion. A first welding guide wire that abuts against the top of the second welding groove protrudes from the protruding portion. The first welding guide wire and the second welding groove are ultrasonically welded and matched.
3. A plastic speaker housing with double ultrasonic lines according to claim 1, characterized in that: The plastic lower cover is provided with positioning holes. A positioning column that is positioned and matched with the positioning holes protrudes from the bottom surface of the plastic upper cover.
4. A plastic speaker housing with double ultrasonic lines according to claim 1, characterized in that: A speaker assembly groove is formed on the top surface of the plastic upper cover. A first speaker relief through hole is formed in the middle of the speaker assembly groove. A speaker relief groove is formed on the top surface of the plastic lower cover. A second speaker relief through hole is formed in the middle of the speaker relief groove.
5. A plastic speaker housing with double ultrasonic lines according to claim 1, characterized in that: A positive wire guiding and limiting portion and a negative wire guiding and limiting portion protrude from the bottom surface of the plastic upper cover. Guide grooves are formed in both the positive wire guiding and limiting portion and the negative wire guiding and limiting portion.