Connection structure of touchpad and mainboard and sound box
The touchpad and motherboard are connected by DuPont pins and sockets, which allows for quick plugging and unplugging, solving the problems of complex connections and difficult maintenance in speakers, and reducing production costs and wiring complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FENDA TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
In existing speakers, the way the touchpad and motherboard are connected makes repairs difficult and wiring complex, increasing production costs.
Using DuPont pins and sockets for connection, the touchpad and motherboard can be quickly plugged in and out via plugs and sockets. Combined with the design of clips and limit rods, the assembly process is simplified.
It enables quick plugging and unplugging of the touchpad and motherboard, simplifies the internal wiring of the speaker, and reduces production costs.
Smart Images

Figure CN224192019U_ABST
Abstract
Description
The connection structure between the touchpad and the motherboard and the speaker Technical Field
[0001] This utility model relates to the field of speaker structure technology, and in particular to a connection structure between a touchpad and a motherboard, and a speaker. Background Technology
[0002] Currently, the speaker is the terminal of the entire audio system. Its function is to convert audio electrical energy into corresponding sound energy and radiate it into space. It is an extremely important component of the audio system, responsible for converting electrical signals into sound signals for direct listening by the human ear. The speaker contains multiple circuit boards, such as touch panels and mainboards, to connect different electronic components and realize the power and communication connections between the internal electronic components.
[0003] The touchpad and motherboard are usually directly connected by a cable, or they are fixed together by a plug-in method and glued in place. However, both of these connection methods make it difficult to quickly plug and unplug the touchpad and motherboard during later maintenance, making disassembly difficult, complicating the internal wiring of the speaker and increasing the production cost of the speaker. Summary of the Invention
[0004] The purpose of this utility model is to provide a connection structure between a touchpad and a motherboard, as well as a speaker, to solve the technical problem that in existing speakers, the touchpad and motherboard are generally directly connected by a cable, or fixed together by a plug-in method and glue. Both of these connection methods make it difficult to quickly plug and unplug the touchpad and motherboard during later maintenance, making disassembly difficult, complicating the internal wiring of the speaker, and increasing the speaker production cost.
[0005] This utility model provides a connection structure between a touchpad and a motherboard, including:
[0006] The bottom shell includes a housing and at least one buckle. The housing has a receiving groove, and the buckle protrudes from the inner wall of the receiving groove and surrounds the inner wall of the receiving groove to form a slot.
[0007] The touchpad includes a first circuit board and a plug protruding from the first circuit board, the first circuit board being inserted into the slot, and the plug having a plurality of DuPont pins;
[0008] The motherboard includes a second circuit board installed in the receiving slot and a socket protruding from the second circuit board. The socket has multiple holes, and each of the DuPont pins is inserted into each of the holes.
[0009] The top cover includes a cover plate and at least one limiting rod protruding from the cover plate. The cover plate is mounted on the bottom shell and covers the touch panel and the motherboard in the receiving groove. Each of the limiting rods presses against the first circuit board in the slot.
[0010] Furthermore, the buckle is provided with a first notch, and the inner wall of the first notch and the inner sidewall of the receiving groove form the slot.
[0011] Furthermore, the first circuit board has two latches on one side facing the bottom wall of the receiving groove, and there are two latches. The two ends of the first circuit board are respectively inserted into the two slots, and the two latches are respectively inserted into the two latches.
[0012] Furthermore, the buckle includes a first arm and a second arm perpendicularly connected to the first arm. Both the first arm and the second arm are connected to the inner wall of the receiving groove. The first notch is provided on the first arm, and the first circuit board abuts against the second arm.
[0013] Furthermore, the bottom shell also includes a stop block protruding from the inner wall of the receiving groove, the stop block being located between the two buckles, and the stop block abutting against the first circuit board.
[0014] Furthermore, the limiting rod is provided with a second notch, and the first circuit board abuts against the inner wall of the second notch.
[0015] Furthermore, the connection structure between the touch panel and the motherboard also includes multiple fasteners, and the bottom shell also includes multiple studs that are protruding from the bottom wall of the receiving groove. The studs are provided with threaded holes, and the second circuit board is provided with multiple through holes. The fasteners pass through the through holes and are connected to the threaded holes.
[0016] Furthermore, the DuPont needle is L-shaped.
[0017] Furthermore, the top cover is made of plastic.
[0018] This utility model also provides a speaker, including the connection structure between the touch panel and the motherboard as described above.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] The touchpad of this invention has multiple DuPont pins, and the motherboard has multiple sockets. Each DuPont pin is inserted into a socket, which solves the problems of structural complexity and maintenance difficulties caused by the traditional connection method between the touchpad and the motherboard. Both the touchpad and the motherboard are modular connectors, which can be quickly plugged in and out, simplifying the speaker assembly process. At the same time, it reduces the complexity of the internal wiring of the speaker and the production cost, making it suitable for widespread promotion. Attached Figure Description
[0021] Figure 1 is a schematic diagram of the connection structure between the touch panel and the motherboard provided in an embodiment of the present invention;
[0022] Figure 2 is an exploded view of Figure 1;
[0023] Figure 3 is a schematic diagram of the top cover provided in an embodiment of this utility model;
[0024] Figure 4 is a schematic diagram of the connection structure between the touch panel and the motherboard provided in this embodiment of the present invention after removing the top cover;
[0025] Figure 5 is an exploded view of Figure 4;
[0026] Figure 6 is a schematic diagram of the bottom shell provided in an embodiment of the present utility model;
[0027] Figure 7 is a magnified view of part A in Figure 6;
[0028] Figure 8 is a schematic diagram of the touch panel provided in an embodiment of this utility model.
[0029] In the picture:
[0030] 10. Bottom shell; 11. Housing; 111. Receiving groove; 12. Buckle; 121. First notch; 122. First support arm; 123. Second support arm; 13. Slot; 14. Stop block; 15. Stud; 151. Threaded hole; 20. Touch panel; 21. First circuit board; 211. Bayonet; 22. Plug; 221. DuPont pin; 2211. First pin bar; 2212. Second pin bar; 222. Base; 223. Support; 30. Main board; 31. Second circuit board; 311. Through hole; 32. Socket; 40. Top cover; 41. Cover plate; 42. Limiting rod; 421. Second notch; 43. Mounting hole; 50. Fastener. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0032] Please refer to Figures 1 to 8. This utility model embodiment discloses a connection structure between a touchpad and a motherboard, which is mainly used in speakers. The connection structure between the touchpad and the motherboard includes a bottom shell 10, a touchpad 20, a motherboard 30, and a top cover 40. The bottom shell 10 includes a housing 11 and at least one buckle 12. The housing 11 is provided with a receiving groove 111. The buckle 12 protrudes from the inner side wall of the receiving groove 111 and surrounds the inner side wall of the receiving groove 111 to form a slot 13. The opening of the slot 13 is set facing the top of the receiving groove 111.
[0033] The touchpad 20 includes a first circuit board 21 and a plug 22 protruding from the first circuit board 21. The first circuit board 21 is inserted into the slot 13 and is vertically arranged. The plug 22 has multiple DuPont pins 221, which are electrically connected to the first circuit board 21. The main board 30 includes a second circuit board 31 installed in the receiving slot 111 and a socket 32 protruding from the second circuit board 31. The socket 32 has multiple holes, and each DuPont pin 221 is inserted into each hole to electrically connect the touchpad 20 and the main board 30. The touchpad 20 and the main board 30 can be quickly plugged in and out, simplifying the speaker assembly process.
[0034] The top cover 40 includes a cover plate 41 and at least one limiting rod 42 protruding from the cover plate 41. The cover plate 41 is installed on the bottom shell 10 and covers the touch panel 20 and the main board 30 in the receiving groove 111. Each limiting rod 42 presses against the first circuit board 21 in the slot 13 to support the touch panel 20 and prevent the touch panel 20 from moving vertically. The operation is simple and saves manpower.
[0035] In some embodiments, the top cover 40 is made of plastic, which makes the top cover 40 elastic, especially the limiting rod 42, so as to avoid the limiting rod 42 from causing excessive pressure on the first circuit board 21 and causing the first circuit board 21 to break. At the same time, the bottom shell 10 can also be made of plastic.
[0036] In this embodiment, the buckle 12 is provided with a first notch 121. The inner wall of the first notch 121 and the inner side wall of the receiving groove 111 form the slot 13. There are two buckles 12, so there are two slots 13. The two ends of the first circuit board 21 are respectively inserted into the two slots 13 so as to fix the first circuit board 21 stably on the bottom shell 10.
[0037] The first circuit board 21 has two slots 211 on the side facing the bottom wall of the receiving groove 111. The slots 211 are strip-shaped grooves. When the two ends of the first circuit board 21 are respectively inserted into the two slots 13, the two buckles 12 are respectively inserted into the two slots 211 to prevent the first circuit board 21 from moving laterally relative to the bottom shell 10 after it is fixed.
[0038] In this embodiment, the buckle 12 has an "L" shaped structure. The buckle 12 includes a first arm 122 and a second arm 123 that is perpendicularly connected to the first arm 122. Both the first arm 122 and the second arm 123 are connected to the inner wall of the receiving groove 111. The first notch 121 is provided on the first arm 122. The second arm 123 is located on the side of the first arm 122 near the bottom wall of the receiving groove 111. The two buckles 12 are arranged opposite to each other. The two ends of the first circuit board 21 abut against the two second arms 123 respectively to share the top pressure of the top cover 40 on the first circuit board 21.
[0039] The bottom shell 10 also includes a stop block 14 protruding from the inner wall of the receiving groove 111. The stop block 14 is located between the two buckles 12. The distance between the end of the stop block 14 away from the bottom wall of the receiving groove 111 and the bottom wall of the receiving groove 111 is equal to the distance between the end of the second support arm 123 away from the bottom wall of the receiving groove 111 and the bottom wall of the receiving groove 111. The stop block 14 abuts against the first circuit board 21 to help share the force exerted by the top cover 40 on the first circuit board 21.
[0040] The limiting rod 42 is provided with a second notch 421, and the top of the first circuit board 21 abuts against the inner wall of the second notch 421 to prevent the first circuit board 21 from moving in the vertical direction after it is fixed.
[0041] In this embodiment, the connection structure between the touch panel and the motherboard also includes multiple fasteners 50, and the bottom shell 10 also includes multiple studs 15 that are all protruding on the bottom wall of the receiving groove 111. The studs 15 are provided with threaded holes 151, and the second circuit board 31 is provided with multiple through holes 311. After the fasteners 50 pass through the corresponding through holes 311, they are connected to the threaded holes 151, thereby fixing the motherboard 30 in the receiving groove 111. The fasteners 50 are screws.
[0042] The touchpad 20 is vertically positioned, while the motherboard 30 is horizontally positioned. Therefore, the DuPont pin 221 needs to be designed in an "L" shape. The shape of the DuPont pin 221 can be adjusted according to the positions of the touchpad 20 and the motherboard 30 so that the touchpad 20 can be quickly plugged in and out of the motherboard 30.
[0043] In some embodiments, the plug 22 includes a base 222, a support 223, and a plurality of DuPont pins 221. Each DuPont pin 221 includes a first pin bar 2211 and a second pin bar 2212 perpendicularly connected to the first pin bar 2211. The base 222 protrudes from the second circuit board 31. The first pin bar 2211 is electrically connected to the second circuit board 31 through the base 222. One end of the second pin bar 2212 is perpendicularly connected to the first pin bar 2211, and the other end is inserted into a corresponding socket. The middle part of each second pin bar 2212 is connected to the support 223. The support 223 abuts against the socket 32. The support 223 can enhance the strength of the plug 22 and prevent the DuPont pins 221 from deforming when inserted.
[0044] This utility model also discloses a speaker, including a speaker, a lithium battery, and a connection structure between the touch panel and the motherboard as described above. The speaker is mounted on the mounting hole 43 of the top cover 40, the lithium battery is located in the receiving groove 111 and electrically connected to the motherboard 30, and the speaker is electrically connected to the motherboard 30 through the touch panel 20.
[0045] The speaker assembly method includes the following steps:
[0046] Step S101: Assemble the motherboard 30 and the lithium battery. Use multiple fasteners 50 to pass through the holes 311 on the motherboard 30 and connect them to the corresponding threaded holes 151 on the bottom shell 10. Then fix the lithium battery in the receiving groove 111.
[0047] Step S102: Assemble the touchpad 20 by vertically inserting both ends of the touchpad 20 into the two slots 13 of the bottom shell 10. At the same time, insert the two clips 12 into the two slots 211 of the touchpad 20, and insert the DuPont pins 221 on the touchpad 20 into the respective holes of the motherboard 30.
[0048] Step S103: Assemble the speaker and install it into the mounting hole 43 on the upper cover 40;
[0049] Step S104: Assemble the top cover 40. First, connect the speaker to the touch panel 20 electrically. Then, install the cover plate 41 of the top cover 40 onto the bottom shell 10 and cover the touch panel 20 and the main board 30 in the receiving groove 111. Each limiting rod 42 of the top cover 40 presses the touch panel 20 against the slot 13, thereby completing the assembly.
[0050] In summary, the touchpad 20 of this invention is provided with multiple DuPont pins 221, and the mainboard 30 is provided with multiple sockets. Each DuPont pin 221 is inserted into a socket, which solves the problems of structural complexity and maintenance difficulties caused by traditional connection methods. Both the touchpad 20 and the mainboard 30 are modular connectors, and quick plugging and unplugging can be achieved between the touchpad 20 and the mainboard 30, simplifying the speaker assembly process and reducing the complexity of internal wiring and production costs, making it suitable for widespread promotion.
[0051] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A connection structure between a touchpad and a motherboard, characterized in that, include: The bottom shell includes a housing and at least one buckle. The housing has a receiving groove, and the buckle protrudes from the inner wall of the receiving groove and surrounds the inner wall of the receiving groove to form a slot. The touch panel includes a first circuit board and a plug protruding from the first circuit board. The first circuit board is inserted into the slot, and the plug has multiple DuPont pins. The main board includes a second circuit board installed in the receiving groove and a socket protruding from the second circuit board. The socket has multiple holes, and each of the DuPont pins is inserted into each of the holes. The top cover includes a cover plate and at least one limiting rod protruding from the cover plate. The cover plate is installed on the bottom shell and covers the touch panel and the main board in the receiving groove. Each of the limiting rods presses against the first circuit board in the slot.
2. The connection structure between the touchpad and the motherboard according to claim 1, characterized in that, The buckle has a first notch, and the inner wall of the first notch and the inner side wall of the receiving groove form the slot.
3. The connection structure between the touchpad and the motherboard according to claim 2, characterized in that, The first circuit board has two latches on one side facing the bottom wall of the receiving groove. There are two latches. The two ends of the first circuit board are respectively inserted into the two slots, and the two latches are respectively inserted into the two latches.
4. The connection structure between the touchpad and the motherboard according to claim 3, characterized in that, The buckle includes a first arm and a second arm perpendicularly connected to the first arm. Both the first arm and the second arm are connected to the inner wall of the receiving groove. The first notch is provided on the first arm, and the first circuit board abuts against the second arm.
5. The connection structure between the touchpad and the motherboard according to claim 3, characterized in that, The bottom shell also includes a stop block protruding from the inner wall of the receiving groove. The stop block is located between the two buckles and abuts against the first circuit board.
6. The connection structure between the touchpad and the motherboard according to claim 1, characterized in that, The limiting rod has a second notch, and the first circuit board abuts against the inner wall of the second notch.
7. The connection structure between the touchpad and the motherboard according to claim 1, characterized in that, The connection structure between the touchpad and the motherboard also includes multiple fasteners. The bottom shell also includes multiple studs that are protruding from the bottom wall of the receiving groove. The studs are provided with threaded holes. The second circuit board is provided with multiple through holes. The fasteners pass through the through holes and are connected to the threaded holes.
8. The connection structure between the touchpad and the motherboard according to claim 1, characterized in that, The DuPont needle is L-shaped.
9. The connection structure between the touchpad and the motherboard according to claim 1, characterized in that, The top cover is made of plastic.
10. A speaker, characterized in that, Includes the connection structure between the touchpad and the motherboard as described in any one of claims 1-9.